FN Thomson Reuters Web of Science™
VR 1.0
PT J
AU Soares-Santos, M
de Carvalho, RR
Annis, J
Gal, RR
La Barbera, F
Lopes, PAA
Wechsler, RH
Busha, MT
Gerke, BF
AF Soares-Santos, Marcelle
de Carvalho, Reinaldo R.
Annis, James
Gal, Roy R.
La Barbera, Francesco
Lopes, Paulo A. A.
Wechsler, Risa H.
Busha, Michael T.
Gerke, Brian F.
TI THE VORONOI TESSELLATION CLUSTER FINDER IN 2+1 DIMENSIONS
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE cosmology: observations; galaxies: clusters: general; methods: data
analysis
ID DIGITAL SKY SURVEY; GALAXY REDSHIFT SURVEY; PHOTOMETRIC REDSHIFTS;
COSMOLOGICAL CONSTRAINTS; DETECTION ALGORITHMS; ABELL CLUSTERS; RICH
CLUSTERS; CATALOG; MAXBCG; PARAMETERS
AB We present a detailed description of the Voronoi Tessellation (VT) cluster finder algorithm in 2+1 dimensions, which improves on past implementations of this technique. The need for cluster finder algorithms able to produce reliable cluster catalogs up to redshift 1 or beyond and down to 10(13.5) solar masses is paramount especially in light of upcoming surveys aiming at cosmological constraints from galaxy cluster number counts. We build the VT in photometric redshift shells and use the two-point correlation function of the galaxies in the field to both determine the density threshold for detection of cluster candidates and to establish their significance. This allows us to detect clusters in a self-consistent way without any assumptions about their astrophysical properties. We apply the VT to mock catalogs which extend to redshift 1.4 reproducing the ACDM cosmology and the clustering properties observed in the Sloan Digital Sky Survey data. An objective estimate of the cluster selection function in terms of the completeness and purity as a function of mass and redshift is as important as having a reliable cluster finder. We measure these quantities by matching the VT cluster catalog with the mock truth table. We show that the VT can produce a cluster catalog with completeness and purity > 80% for the redshift range up to similar to 1 and mass range down to similar to 10(13.5) solar masses.
C1 [Soares-Santos, Marcelle; Annis, James] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
[Soares-Santos, Marcelle] Univ Sao Paulo, Inst Astron Geofis & Ciencias Atmosfer, Sao Paulo, Brazil.
[de Carvalho, Reinaldo R.] Inst Nacl Pesquisas Espaciais, Div Astrofis, BR-12201 Sao Jose Dos Campos, SP, Brazil.
[Gal, Roy R.] Univ Hawaii, Inst Astron, Honolulu, HI 96822 USA.
[La Barbera, Francesco] INAF Osservatorio Astron Capodimonte, I-80131 Naples, Italy.
[Lopes, Paulo A. A.] Observ Valongo, Rio De Janeiro, Brazil.
[Wechsler, Risa H.; Busha, Michael T.; Gerke, Brian F.] Stanford Univ, Kavli Inst Particle Astrophys & Cosmol, SLAC Natl Accelerator Lab, Stanford, CA 94305 USA.
RP Soares-Santos, M (reprint author), Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA.
EM marcelle@fnal.gov
RI 7, INCT/H-6207-2013; Astrofisica, Inct/H-9455-2013; Lopes,
Paulo/B-3055-2013;
OI La Barbera, Francesco/0000-0003-1181-6841
FU CNPq; Fermilab Center for Particle Astrophysics; US Department of Energy
[DE-AC02-76SF00515]
FX M.S.-S. has received support from the Brazilian agency CNPq and from the
Fermilab Center for Particle Astrophysics for this work. R.H.W. and
B.F.G. received support from the US Department of Energy under contract
number DE-AC02-76SF00515. Thanks to Massimo Ramella for making his code
available at http://www.ts.astro.it/astro/VoroHome/ and to Yang Jiao for
pointing out the simulated annealing method applied in this paper.
Thanks to Jorge Horvath for careful reading of the manuscript.
NR 64
TC 27
Z9 27
U1 0
U2 5
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0004-637X
J9 ASTROPHYS J
JI Astrophys. J.
PD JAN 20
PY 2011
VL 727
IS 1
AR 45
DI 10.1088/0004-637X/727/1/45
PG 14
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 703PT
UT WOS:000285992000045
ER
PT J
AU Pomorski, M
Miernik, K
Dominik, W
Janas, Z
Pfutzner, M
Bingham, CR
Czyrkowski, H
Cwiok, M
Darby, IG
Dabrowski, R
Ginter, T
Grzywacz, R
Karny, M
Korgul, A
Kusmierz, W
Liddick, SN
Rajabali, M
Rykaczewski, K
Stolz, A
AF Pomorski, M.
Miernik, K.
Dominik, W.
Janas, Z.
Pfuetzner, M.
Bingham, C. R.
Czyrkowski, H.
Cwiok, M.
Darby, I. G.
Dabrowski, R.
Ginter, T.
Grzywacz, R.
Karny, M.
Korgul, A.
Kusmierz, W.
Liddick, S. N.
Rajabali, M.
Rykaczewski, K.
Stolz, A.
TI beta-delayed proton emission branches in Cr-43
SO PHYSICAL REVIEW C
LA English
DT Article
ID DRIP-LINE; DECAY; NUCLEAR; RADIOACTIVITY
AB The beta(+) decay of very neutron-deficient Cr-43 was studied by means of an imaging time projection chamber that allowed recording tracks of charged particles. Events of beta-delayed emission of one, two, and three protons were clearly identified. The absolute branching ratios for these channels were determined to be ( 81 +/- 4)%, ( 7.1 +/- 0.4)%, and ( 0.08 +/- 0.03)%, respectively. Cr-43 is thus established as the second case in which the beta-3p decay occurs. Although the feeding to the proton-bound states in V-43 is expected to be negligible, the large branching ratio of ( 12 +/- 4)% for decays without proton emission is found.
C1 [Pomorski, M.; Miernik, K.; Dominik, W.; Janas, Z.; Pfuetzner, M.; Czyrkowski, H.; Cwiok, M.; Dabrowski, R.; Karny, M.; Korgul, A.; Kusmierz, W.] Univ Warsaw, Fac Phys, PL-00681 Warsaw, Poland.
[Bingham, C. R.; Darby, I. G.; Grzywacz, R.; Liddick, S. N.; Rajabali, M.] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA.
[Ginter, T.; Stolz, A.] Michigan State Univ, Natl Superconducting Cyclotron Lab, E Lansing, MI 48824 USA.
[Grzywacz, R.; Rykaczewski, K.] Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA.
RP Pomorski, M (reprint author), Univ Warsaw, Fac Phys, PL-00681 Warsaw, Poland.
EM pfutzner@fuw.edu.pl
FU Polish Ministry of Science and Higher Education [1 P03B 138 30]; US
National Science Foundation [PHY-06-06007]; US Department of Energy
[DE-FG02-96ER40983, DEFC03-03NA00143, DOE-AC05-00OR22725]; Foundation
for Polish Science
FX This work was supported by Grant No. 1 P03B 138 30 from the Polish
Ministry of Science and Higher Education, the US National Science
Foundation under Grant No. PHY-06-06007, and the US Department of Energy
under Contracts No. DE-FG02-96ER40983, No. DEFC03-03NA00143, and No.
DOE-AC05-00OR22725. A. K. acknowledges the support from the Foundation
for Polish Science.
NR 17
TC 22
Z9 22
U1 1
U2 6
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0556-2813
J9 PHYS REV C
JI Phys. Rev. C
PD JAN 20
PY 2011
VL 83
IS 1
AR 014306
DI 10.1103/PhysRevC.83.014306
PG 5
WC Physics, Nuclear
SC Physics
GA 713QW
UT WOS:000286753500002
ER
PT J
AU Yang, TJ
AF Yang, Tingjun
CA MINOS Collaboration
TI SEARCH FOR nu(mu) -> nu(e) OSCILLATIONS IN THE MINOS EXPERIMENT
SO INTERNATIONAL JOURNAL OF MODERN PHYSICS A
LA English
DT Review
DE MINOS; long-baseline; neutrino oscillations; theta(13)
ID NEUTRINO OSCILLATIONS; GLOBAL ANALYSIS; LEPTON CHARGE; PHOTOMULTIPLIERS;
DETECTOR
AB The MINOS experiment uses the NuMI nu(mu) beam to make precise measurements of neutrino flavor oscillations in the "atmospheric" neutrino sector. MINOS can also probe the yet-unknown neutrino mixing angle theta(13) by searching for a nu(e) appearance signal in the nu(mu) beam. This paper reviews the techniques developed for the first nu(e) appearance analysis in MINOS.
C1 [Yang, Tingjun; MINOS Collaboration] Stanford Univ, Dept Phys, Stanford, CA 94305 USA.
RP Yang, TJ (reprint author), Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA.
EM tjyang@fnal.gov
FU US DOE; UK STFC; US NSF; State and University of Minnesota; University
of Athens, Greece; FAPESP, Brazil; CNPq, Brazil; CAPES, Brazil
FX This work was supported by the US DOE; the UK STFC; the US NSF; the
State and University of Minnesota; the University of Athens, Greece; and
Brazil's FAPESP, CNPq, and CAPES. We are grateful to the Minnesota DNR,
the crew of the Soudan Underground Laboratory, and the staff of Fermilab
for their contributions to this effort.
NR 30
TC 0
Z9 0
U1 0
U2 0
PU WORLD SCIENTIFIC PUBL CO PTE LTD
PI SINGAPORE
PA 5 TOH TUCK LINK, SINGAPORE 596224, SINGAPORE
SN 0217-751X
J9 INT J MOD PHYS A
JI Int. J. Mod. Phys. A
PD JAN 20
PY 2011
VL 26
IS 2
BP 179
EP 189
DI 10.1142/S0217751X11051317
PG 11
WC Physics, Nuclear; Physics, Particles & Fields
SC Physics
GA 711SS
UT WOS:000286612300001
ER
PT J
AU Neill, JD
Sullivan, M
Gal-Yam, A
Quimby, R
Ofek, E
Wyder, TK
Howell, DA
Nugent, P
Seibert, M
Martin, DC
Overzier, R
Barlow, TA
Foster, K
Friedman, PG
Morrissey, P
Neff, SG
Schiminovich, D
Bianchi, L
Donas, J
Heckman, TM
Lee, YW
Madore, BF
Milliard, B
Rich, RM
Szalay, AS
AF Neill, James D.
Sullivan, Mark
Gal-Yam, Avishay
Quimby, Robert
Ofek, Eran
Wyder, Ted K.
Howell, D. Andrew
Nugent, Peter
Seibert, Mark
Martin, D. Christopher
Overzier, Roderik
Barlow, Tom A.
Foster, Karl
Friedman, Peter G.
Morrissey, Patrick
Neff, Susan G.
Schiminovich, David
Bianchi, Luciana
Donas, Jose
Heckman, Timothy M.
Lee, Young-Wook
Madore, Barry F.
Milliard, Bruno
Rich, R. Michael
Szalay, Alex S.
TI THE EXTREME HOSTS OF EXTREME SUPERNOVAE
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE galaxies: dwarf; stars: luminosity function, mass function; stars:
massive; supernovae: general
ID STAR-FORMING GALAXIES; CORE-COLLAPSE SUPERNOVAE; DIGITAL SKY SURVEY;
LUMINOUS SUPERNOVA; FORMATION RATES; MASSIVE STAR; IIN SUPERNOVAE; IA
SUPERNOVAE; UV; ULTRAVIOLET
AB We use GALEX ultraviolet (UV) and optical integrated photometry of the hosts of 17 luminous supernovae (LSNe, having peak M-V < -21) and compare them to a sample of 26,000 galaxies from a cross-match between the SDSS DR4 spectral catalog and GALEX interim release 1.1. We place the LSN hosts on the galaxy NUV - r versus M-r color-magnitude diagram (CMD) with the larger sample to illustrate how extreme they are. The LSN hosts appear to favor low-density regions of the galaxy CMD falling on the blue edge of the blue cloud toward the low-luminosity end. From the UV-optical photometry, we estimate the star formation history of the LSN hosts. The hosts have moderately low star formation rates (SFRs) and low stellar masses (M-*) resulting in high specific star formation rates (sSFR). Compared with the larger sample, the LSN hosts occupy low-density regions of a diagram plotting sSFR versus M-* in the area having higher sSFR and lower M-*. This preference for low M-*, high sSFR hosts implies that the LSNe are produced by an effect having to do with their local environment. The correlation of mass with metallicity suggests that perhaps wind-driven mass loss is the factor that prevents LSNe from arising in higher-mass, higher-metallicity hosts. The massive progenitors of the LSNe (> 100 M-circle dot), by appearing in low-SFR hosts, are potential tests for theories of the initial mass function that limit the maximum mass of a star based on the SFR.
C1 [Neill, James D.; Quimby, Robert; Ofek, Eran; Wyder, Ted K.; Martin, D. Christopher; Barlow, Tom A.; Foster, Karl; Friedman, Peter G.; Morrissey, Patrick] CALTECH, Pasadena, CA 91125 USA.
[Sullivan, Mark] Univ Oxford, Oxford OX1 3RH, England.
[Gal-Yam, Avishay] Weizmann Inst Sci, Fac Phys, Dept Particle Phys & Astrophys, IL-76100 Rehovot, Israel.
[Howell, D. Andrew] Global Telescope Network, Las Cumbres Observ, Goleta, CA 93117 USA.
[Nugent, Peter] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Seibert, Mark; Madore, Barry F.] Observ Carnegie Inst Washington, Pasadena, CA 91101 USA.
[Overzier, Roderik] Max Planck Inst Astrophys, D-85748 Garching, Germany.
[Neff, Susan G.] NASA, Goddard Space Flight Ctr, Astron & Solar Phys Lab, Greenbelt, MD 20771 USA.
[Schiminovich, David] Columbia Univ, Dept Astron, New York, NY 10027 USA.
[Bianchi, Luciana] Johns Hopkins Univ, Ctr Astrophys Sci, Baltimore, MD 21218 USA.
[Donas, Jose; Milliard, Bruno] Lab Astrophys Marseille, F-13376 Marseille 12, France.
[Heckman, Timothy M.; Szalay, Alex S.] Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA.
[Lee, Young-Wook] Yonsei Univ, Ctr Space Astrophys, Seoul 120749, South Korea.
[Rich, R. Michael] Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA.
RP Neill, JD (reprint author), CALTECH, 1200 E Calif Blvd, Pasadena, CA 91125 USA.
OI Sullivan, Mark/0000-0001-9053-4820
FU Office of Science of the US Department of Energy [DE-AC02-05CH11231]
FX The National Energy Research Scientific Computing Center, which is
supported by the Office of Science of the US Department of Energy under
Contract No. DE-AC02-05CH11231, provided staff, computational resources
and data storage for this project.
NR 64
TC 70
Z9 70
U1 0
U2 4
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0004-637X
J9 ASTROPHYS J
JI Astrophys. J.
PD JAN 20
PY 2011
VL 727
IS 1
AR 15
DI 10.1088/0004-637X/727/1/15
PG 7
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 703PT
UT WOS:000285992000015
ER
PT J
AU Feldmann, R
Gnedin, NY
AF Feldmann, R.
Gnedin, N. Y.
TI ON THE TIME VARIABILITY OF THE STAR FORMATION EFFICIENCY
SO ASTROPHYSICAL JOURNAL LETTERS
LA English
DT Article
DE galaxies: evolution; stars: formation
ID GIANT MOLECULAR CLOUDS; CLUSTER FORMATION; TURBULENCE; GALAXIES; DRIVEN;
GAS
AB A star formation efficiency per free-fall time that evolves over the lifetime of giant molecular clouds (GMCs) may have important implications for models of supersonic turbulence in molecular clouds or for the relation between the star formation rate and H-2 surface density. We discuss observational data that could be interpreted as evidence of such a time variability. In particular, we investigate a recent claim based on measurements of H-2 and stellar masses in individual GMCs. We show that this claim depends crucially on the assumption that H-2 masses do not evolve over the lifetimes of GMCs. We exemplify our findings with a simple toy model that uses a constant star formation efficiency and, yet, is able to explain the observational data.
C1 [Feldmann, R.; Gnedin, N. Y.] Fermilab Natl Accelerator Lab, Ctr Particle Astrophys, Batavia, IL 60510 USA.
[Feldmann, R.; Gnedin, N. Y.] Univ Chicago, Kavli Inst Cosmol Phys, Chicago, IL 60637 USA.
[Feldmann, R.; Gnedin, N. Y.] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA.
[Gnedin, N. Y.] Univ Chicago, Dept Astron & Astrophys, Chicago, IL 60637 USA.
RP Feldmann, R (reprint author), Fermilab Natl Accelerator Lab, Ctr Particle Astrophys, POB 500, Batavia, IL 60510 USA.
EM feldmann@fnal.gov
FU DOE at Fermilab; NSF [AST-0908063]; NASA [NNX-09AJ54G]
FX The authors are grateful to A. Kravtsov, M. Krumholz, and N. Murray for
helpful comments. The authors also thank the Aspen Center for Physics
and the organizers of the workshop "Star Formation in Galaxies: From
Recipes to Real Physics" for providing a stimulating research
environment. This work was supported in part by the DOE at Fermilab, by
the NSF grant AST-0908063, and by the NASA grant NNX-09AJ54G.
NR 22
TC 11
Z9 11
U1 0
U2 2
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 2041-8205
J9 ASTROPHYS J LETT
JI Astrophys. J. Lett.
PD JAN 20
PY 2011
VL 727
IS 1
AR L12
DI 10.1088/2041-8205/727/1/L12
PG 4
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 703QG
UT WOS:000285993800012
ER
PT J
AU Briggs, MS
Connaughton, V
Wilson-Hodge, C
Preece, RD
Fishman, GJ
Kippen, RM
Bhat, PN
Paciesas, WS
Chaplin, VL
Meegan, CA
von Kienlin, A
Greiner, J
Dwyer, JR
Smith, DM
AF Briggs, Michael S.
Connaughton, Valerie
Wilson-Hodge, Colleen
Preece, Robert D.
Fishman, Gerald J.
Kippen, R. Marc
Bhat, P. N.
Paciesas, William S.
Chaplin, Vandiver L.
Meegan, Charles A.
von Kienlin, Andreas
Greiner, Jochen
Dwyer, Joesph R.
Smith, David M.
TI Electron-positron beams from terrestrial lightning observed with Fermi
GBM
SO GEOPHYSICAL RESEARCH LETTERS
LA English
DT Article
ID GAMMA-RAY FLASHES; RUNAWAY ELECTRONS; BURST MONITOR; THUNDERSTORM; AIR
AB Terrestrial Gamma-ray Flashes (TGFs) are brief pulses of energetic radiation observed in low-earth orbit. They are associated with thunderstorms and lightning and have been observed both as gamma-ray and electron flashes depending on the position of the spacecraft with respect to the source. While gamma-ray TGFs are detected as short pulses lasting less than 1 ms, most TGFs seen by the Fermi Gamma-ray Burst Monitor (GBM) with durations greater than 1 ms are, instead, the result of electrons traveling from the sources along geomagnetic field lines. We perform spectral analysis of the three brightest electron TGFs detected by GBM and discover strong 511 keV positron annihilation lines, demonstrating that these electron TGFs also contain substantial positron components. This shows that pair production occurs in conjunction with some terrestrial lightning and that most likely all TGFs are injecting electron-positron beams into the near Earth environment. Citation: Briggs, M. S., et al. (2011), Electron-positron beams from terrestrial lightning observed with Fermi GBM, Geophys. Res. Lett., 38, L02808, doi:10.1029/2010GL046259.
C1 [Briggs, Michael S.; Connaughton, Valerie; Preece, Robert D.; Bhat, P. N.; Paciesas, William S.; Chaplin, Vandiver L.] Univ Alabama, CSPAR, Huntsville, AL 35805 USA.
[Wilson-Hodge, Colleen; Fishman, Gerald J.] NASA, George C Marshall Space Flight Ctr, Space Sci Off, Huntsville, AL 35812 USA.
[Dwyer, Joesph R.] Florida Inst Technol, Melbourne, FL 32901 USA.
[von Kienlin, Andreas; Greiner, Jochen] Max Planck Inst Extraterr Phys, D-85741 Garching, Germany.
[Kippen, R. Marc] Los Alamos Natl Lab, ISR 1, Los Alamos, NM 87545 USA.
[Meegan, Charles A.] USRA, Huntsville, AL 35805 USA.
[Smith, David M.] Univ Calif Santa Cruz, Dept Phys, Santa Cruz, CA 95064 USA.
[Preece, Robert D.] Univ Alabama, Dept Phys, Huntsville, AL 35805 USA.
RP Briggs, MS (reprint author), Univ Alabama, CSPAR, 320 Sparkman Dr, Huntsville, AL 35805 USA.
EM michael.briggs@uah.edu; jerry.fishman@nasa.gov; mkippen@lanl.gov;
chip.meegan@nasa.gov; azk@mpe.mpg.de; jdwyer@fit.edu;
dsmith@scipp.ucsc.edu
OI Preece, Robert/0000-0003-1626-7335
NR 19
TC 66
Z9 66
U1 2
U2 9
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 0094-8276
EI 1944-8007
J9 GEOPHYS RES LETT
JI Geophys. Res. Lett.
PD JAN 20
PY 2011
VL 38
AR L02808
DI 10.1029/2010GL046259
PG 5
WC Geosciences, Multidisciplinary
SC Geology
GA 710MX
UT WOS:000286517000004
ER
PT J
AU Lipnikov, K
Manzini, G
Brezzi, F
Buffa, A
AF Lipnikov, K.
Manzini, G.
Brezzi, F.
Buffa, A.
TI The mimetic finite difference method for the 3D magnetostatic field
problems on polyhedral meshes
SO JOURNAL OF COMPUTATIONAL PHYSICS
LA English
DT Article
DE Div-curl equations; Magnetostatics; Mimetic finite differences;
Polyhedral mesh
ID LOGICALLY RECTANGULAR GRIDS; DIV-CURL PROBLEMS; DIFFUSION-PROBLEMS;
CONVERGENCE ANALYSIS; ELLIPTIC PROBLEMS; NATURAL DISCRETIZATIONS;
MAXWELLS EQUATIONS; LINEAR ELASTICITY; ERROR ESTIMATOR; VOLUME METHOD
AB We extend the mimetic finite difference (MFD) method to the numerical treatment of magnetostatic fields problems in mixed div-curl form for the divergence-free magnetic vector potential. To accomplish this task, we introduce three sets of degrees of freedom that are attached to the vertices, the edges, and the faces of the mesh, and two discrete operators mimicking the curl and the gradient operator of the differential setting. Then, we present the construction of two suitable quadrature rules for the numerical discretization of the domain integrals of the div-curl variational formulation of the magnetostatic equations. This construction is based on an algebraic consistency condition that generalizes the usual construction of the inner products of the MFD method. We also discuss the linear algebraic form of the resulting MFD scheme, its practical implementation, and discuss existence and uniqueness of the numerical solution by generalizing the concept of logically rectangular or cubic meshes by Hyman and Shashkov to the case of unstructured polyhedral meshes. The accuracy of the method is illustrated by solving numerically a set of academic problems and a realistic engineering problem. Published by Elsevier Inc.
C1 [Lipnikov, K.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
[Manzini, G.; Buffa, A.] CNR, IMATI, I-27100 Pavia, Italy.
[Manzini, G.] IUSS Pavia, Ctr Simulaz Numer Avanzata CeSNA, I-27100 Pavia, Italy.
[Brezzi, F.] Ist Univ Super, Pavia, Italy.
RP Lipnikov, K (reprint author), Los Alamos Natl Lab, Div Theoret, MS B284, Los Alamos, NM 87545 USA.
EM lipnikov@lanl.gov; Marco.Manzini@imati.cnr.it; brezzi@imati.cnr.it;
annalisa@imati.cnr.it
RI Buffa, Annalisa/C-4275-2011; Brezzi, Franco/D-4362-2009;
OI Buffa, Annalisa/0000-0003-0384-0876; Brezzi, Franco/0000-0003-4715-5475;
Manzini, Gianmarco/0000-0003-3626-3112
FU National Nuclear Security Administration of the US Department of Energy
at Los Alamos National Laboratory [DE-AC52-06NA25396]; DOE Office of
Science Advanced Scientific Computing Research (ASCR)
FX This work was carried out under the auspices of the National Nuclear
Security Administration of the US Department of Energy at Los Alamos
National Laboratory under Contract No. DE-AC52-06NA25396 and the DOE
Office of Science Advanced Scientific Computing Research (ASCR) Program
in Applied Mathematics Research. The second author thanks the 2009 Short
Term Mobility Program of Italian Consiglio Nazionale delle Ricerche
(CNR). The third author thanks the PRIN-2008 research program of Italian
MIUR.
NR 49
TC 25
Z9 25
U1 0
U2 2
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 0021-9991
EI 1090-2716
J9 J COMPUT PHYS
JI J. Comput. Phys.
PD JAN 20
PY 2011
VL 230
IS 2
BP 305
EP 328
DI 10.1016/j.jcp.2010.09.007
PG 24
WC Computer Science, Interdisciplinary Applications; Physics, Mathematical
SC Computer Science; Physics
GA 692AE
UT WOS:000285123100002
ER
PT J
AU Jiang, W
Hardy, DJ
Phillips, JC
MacKerell, AD
Schulten, K
Roux, B
AF Jiang, Wei
Hardy, David J.
Phillips, James C.
MacKerell, Alexander D., Jr.
Schulten, Klaus
Roux, Benoit
TI High-Performance Scalable Molecular Dynamics Simulations of a
Polarizable Force Field Based on Classical Drude Oscillators in NAMD
SO JOURNAL OF PHYSICAL CHEMISTRY LETTERS
LA English
DT Article
ID FLUCTUATING CHARGE; COMPUTER EXPERIMENTS; AQUEOUS SOLVATION; LIQUID
WATER; MODEL; PROTEINS; ALGORITHM; METHANOL; AMIDES; FLUIDS
AB Incorporating the influence of induced polarization in large-scale atmositic molecular dynamics (MD) simulations is a critical challenge in the progress toward computations of increased accuracy. One compuationally efficient treatment is based on the classical Drude oscillator, in which an auxiliary charged particle is attached by a spring to each nucleus. Here, we report the first implementation of this model in the program NAMD. An extended Lagrangian dynamics with a dual-Langevin thermostat scheme applied to the Drude-nucleus pairs is employed to efficiently generate classical dynamic propagation near the self-consistent field limit. Large-scale MD simulations based on the Drude polarizable force field scale very well on massively distributed supercomputing platforms the computational demand increasing by only a factor of 1.2 to 1.8 compared to nonpolarizable models. As an illustration, a large-scale 150 mM NaCl aqueous salt solution is simulated, and the calculated ionic conductivity is shown to be in excellent agreement with experiment.
C1 [MacKerell, Alexander D., Jr.] Univ Maryland, Sch Pharm, Dept Pharmaceut Sci, Baltimore, MD 21201 USA.
[Jiang, Wei] Argonne Natl Lab, Argonne Leadership Comp Facil, Lemont, IL 60439 USA.
[Hardy, David J.; Phillips, James C.; Schulten, Klaus] Univ Illinois, Beckman Inst, Urbana, IL 61801 USA.
[Schulten, Klaus] Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
[Roux, Benoit] Univ Chicago, Dept Biochem & Mol Biol, Chicago, IL 60637 USA.
[Roux, Benoit] Argonne Natl Lab, Biosci Div, Argonne, IL 60439 USA.
RP MacKerell, AD (reprint author), Univ Maryland, Sch Pharm, Dept Pharmaceut Sci, Baltimore, MD 21201 USA.
EM alex@outerbanks.umaryland.edu; kschulte@ks.uiuc.edu; roux@uchicago.edu
OI MacKerell, Alex/0000-0001-8287-6804
FU Argonne Leadership Computing Facility (ALCF); National Institutes of
Health [GM072558, GM070855, GM051501, P41-RR005969]; Office of Science
of the U.S. Department of Energy (DOE) [DE-AC02-06CH11357]
FX We are grateful to Ray Loy for his help building the CVS version of NAMD
on Blue Gene/P Intrepid. The work of W.J. is supported by the
Computational Postdoctoral Fellowship from the Argonne Leadership
Computing Facility (ALCF) The work of B.R. and A.D.M. is supported by
the National Institutes of Health through Grants GM072558, GM070855, and
GM051501. The work of D.H., J.P., and K.S. is supported by the National
Institutes of Health through Grant P41-RR005969. This research used
resources of the Argonne Leadership Computing Facility (ALCF) at Argonne
National Laboratory, which is supported by the Office of Science of the
U.S. Department of Energy (DOE) under contract DE-AC02-06CH11357. The
submitted manuscript has been created by UChicago Argonne, LLC, Operator
of Argonne National Laboratory ("Argonne"). The U.S. Government retains
for itself, and others acting on its behalf, a paid-up nonexclusive,
irrevocable worldwide license in said article to reproduce, prepare
derivative works, distribute copies to the public, and perform publicly
and display publicly, by or on behalf of the Government.
NR 37
TC 83
Z9 84
U1 3
U2 46
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1948-7185
J9 J PHYS CHEM LETT
JI J. Phys. Chem. Lett.
PD JAN 20
PY 2011
VL 2
IS 2
BP 87
EP 92
DI 10.1021/jz101461d
PG 6
WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science,
Multidisciplinary; Physics, Atomic, Molecular & Chemical
SC Chemistry; Science & Technology - Other Topics; Materials Science;
Physics
GA 710GS
UT WOS:000286499500007
PM 21572567
ER
PT J
AU Cang, H
Labno, A
Lu, CG
Yin, XB
Liu, M
Gladden, C
Liu, YM
Zhang, X
AF Cang, Hu
Labno, Anna
Lu, Changgui
Yin, Xiaobo
Liu, Ming
Gladden, Christopher
Liu, Yongmin
Zhang, Xiang
TI Probing the electromagnetic field of a 15-nanometre hotspot by single
molecule imaging
SO NATURE
LA English
DT Article
ID ENHANCED RAMAN-SCATTERING; SURFACE-PLASMONS; SILVER ELECTRODE;
DIFFRACTION-LIMIT; ENERGY-TRANSFER; MICROSCOPY; SPECTROSCOPY; PYRIDINE;
LOCALIZATION; EXCITATION
AB When light illuminates a rough metallic surface, hotspots can appear, where the light is concentrated on the nanometre scale, producing an intense electromagnetic field. This phenomenon, called the surface enhancement effect(1,2), has a broad range of potential applications, such as the detection of weak chemical signals. Hotspots are believed to be associated with localized electromagnetic modes(3,4), caused by the randomness of the surface texture. Probing the electromagnetic field of the hotspots would offer much insight towards uncovering the mechanism generating the enhancement; however, it requires a spatial resolution of 1-2 nm, which has been a long-standing challenge in optics. The resolution of an optical microscope is limited to about half the wavelength of the incident light, approximately 200-300 nm. Although current state-of-the-art techniques, including near-field scanning optical microscopy(5), electron energy-loss spectroscopy(6), cathode luminescence imaging(7) and two-photon photoemission imaging(8) have subwavelength resolution, they either introduce a non-negligible amount of perturbation, complicating interpretation of the data, or operate only in a vacuum. As a result, after more than 30 years since the discovery of the surface enhancement effect(9-11), how the local field is distributed remains unknown. Here we present a technique that uses Brownian motion of single molecules to probe the local field. It enables two-dimensional imaging of the fluorescence enhancement profile of single hotspots on the surfaces of aluminium thin films and silver nanoparticle clusters, with accuracy down to 1.2 nm. Strong fluorescence enhancements, up to 54 and 136 times respectively, are observed in those two systems. This strong enhancement indicates that the local field, which decays exponentially from the peak of a hotspot, dominates the fluorescence enhancement profile.
C1 [Cang, Hu; Yin, Xiaobo; Zhang, Xiang] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA.
[Cang, Hu; Labno, Anna; Lu, Changgui; Yin, Xiaobo; Liu, Ming; Gladden, Christopher; Liu, Yongmin; Zhang, Xiang] Univ Calif Berkeley, NSF Nano Scale Sci & Engn Ctr, Berkeley, CA 94720 USA.
[Labno, Anna] Univ Calif Berkeley, Biophys Program, Berkeley, CA 94720 USA.
RP Zhang, X (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA.
EM xiang@berkeley.edu
RI Liu, Yongmin/F-5322-2010; Yin, Xiaobo/A-4142-2011; Zhang,
Xiang/F-6905-2011
FU US Department of Energy Office of Science, Basic Energy Sciences and
Lawrence Berkeley National Laboratory [DE-AC02-05CH11231]
FX We thank G. Bartal and A. Niv for discussions. This research was
supported by the US Department of Energy Office of Science, Basic Energy
Sciences and Lawrence Berkeley National Laboratory under contract no.
DE-AC02-05CH11231.
NR 30
TC 139
Z9 139
U1 18
U2 152
PU NATURE PUBLISHING GROUP
PI LONDON
PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND
SN 0028-0836
J9 NATURE
JI Nature
PD JAN 20
PY 2011
VL 469
IS 7330
BP 385
EP +
DI 10.1038/nature09698
PG 5
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 708SW
UT WOS:000286385600049
PM 21248848
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CA ALICE Collaboration
TI Centrality Dependence of the Charged-Particle Multiplicity Density at
Midrapidity in Pb-Pb Collisions at root s(NN)=2.76 TeV
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID AA COLLISIONS; PA; PP
AB The centrality dependence of the charged-particle multiplicity density at midrapidity in Pb-Pb collisions at root s(NN) = 2: 76 TeV is presented. The charged-particle density normalized per participating nucleon pair increases by about a factor of 2 from peripheral (70%-80%) to central (0%-5%) collisions. The centrality dependence is found to be similar to that observed at lower collision energies. The data are compared with models based on different mechanisms for particle production in nuclear collisions.
C1 [Aamodt, K.; Djuvsland, O.; Fehlker, D.; Haaland, O.; Huang, M.; Klovning, A.; Larsen, D. T.; Liu, L.; Nystrand, J.; Ovrebekk, G.; Richter, M.; Roehrich, D.; Skjerdal, K.; Szostak, A.; Ullaland, K.; Wagner, B.] Univ Bergen, Dept Phys & Technol, Bergen, Norway.
[Quintana, A. Abrahantes; Shtejer, K.] Ctr Aplicac Tecnol & Desarrollo Nucl CEADEN, Havana, Cuba.
[Adamova, D.; Bielcikova, J.; Kushpil, S.; Kushpil, V.; Sumbera, M.] Acad Sci Czech Republic, Inst Nucl Phys, Prague, Czech Republic.
[Adare, A. M.; Aronsson, T.; Bruna, E.; Caines, H.; Harris, J. W.; Heinz, M.; Hicks, B.; Hille, P. T.; Ma, R.; Putschke, J.; Smirnov, N.] Yale Univ, New Haven, CT USA.
[Aggarwal, M. M.; Bhati, A. K.; Sharma, N.] Panjab Univ, Dept Phys, Chandigarh 160014, India.
[Rinella, G. Aglieri; Altini, V.; Augustinus, A.; Betev, L.; Biolcati, E.; Boccioli, M.; Bossu, F.; Brun, R.; Roman, V. Canoa; Carena, F.; Carena, W.; Carminati, F.; Caselle, M.; Cavicchioli, C.; Chapeland, S.; Barroso, V. Chibante; Chochula, P.; Costa, F.; Di Mauro, A.; Divia, R.; Evrard, S.; Fabjan, C. W.; Ferretti, R.; Floris, M.; Fuchs, U.; Furano, F.; Gheata, A.; Gheata, M.; Grigoras, A.; Grigoras, C.; Grosse-Oetringhaus, J. F.; Hayrapetyan, A.; Hristov, P.; Innocenti, P. G.; Jacholkowski, A.; Jirden, L.; Kirsch, S.; Kisiel, A.; Kluge, A.; Leistam, L.; Lippmann, C.; Lohn, S.; Luzzi, C.; Mager, M.; Martinengo, P.; Mastroserio, A.; Mendez Lorenzo, P.; Molnar, L.; Morsch, A.; Mueller, H.; Musa, L.; Ortona, G.; Pagano, P.; Perini, D.; Peskov, V.; Peters, A. J.; Pinazza, O.; Piuz, F.; Pulvirenti, A.; Quercigh, E.; Rademakers, A.; Rademakers, O.; Revol, J. -P.; Riedler, P.; Riegler, W.; Rosinsky, P.; Rossegger, S.; Rusanov, I.; Safarik, K.; Saiz, P.; Schreiner, S.; Schukraft, J.; Schutz, Y.; Shahoyan, R.; Sicking, E.; Simonetti, G.; Soos, C.; Stefanini, G.; Swoboda, D.; Tauro, A.; Tavlet, M.; Telesca, A.; Toia, A.; Toscano, L.; Vyvre, P. Vande; von Haller, B.; Zampolli, C.] European Org Nucl Res CERN, Geneva, Switzerland.
[Agocs, A. G.; Barnafoeldi, G. G.; Boldizsar, L.; Denes, E.; Gemme, R.; Hamar, G.; Levai, P.; Pochybova, S.] Hungarian Acad Sci, KFKI Res Inst Particle & Nucl Phys, Budapest, Hungary.
[Salazar, S. Aguilar; Alfaro Molina, R.; Avina, E. Almaraz; Belmont-Moreno, E.; Gonzalez-Trueba, L. H.; Grabski, V.; Martinez Davalos, A.; Menchaca-Rocha, A.; Sandoval, A.] Univ Nacl Autonoma Mexico, Inst Fis, Mexico City 01000, DF, Mexico.
[Ahammed, Z.; Chattopadhyay, S.; De, S.; Dubey, A. K.; Majumdar, M. R. Dutta; Ghosh, P.; Mohanty, B.; Muhuri, S.; Nayak, T. K.; Pal, S. K.; Samanta, T.; Singaraju, R.; Sinha, B. C.; Viyogi, Y. P.] Ctr Variable Energy Cyclotron, Kolkata, India.
[Ahmad, N.; Masoodi, A. Ahmad; Azmi, M. D.; Irfan, M.; Khan, M. M.] Aligarh Muslim Univ, Dept Phys, Aligarh 202002, Uttar Pradesh, India.
[Ahn, S. U.; Baek, Y. W.; Jung, H.; Jung, W.; Kang, E.; Kim, D. S.; Kim, D. W.; Kim, H. N.; Kim, J. S.; Kim, M.; Kim, S. H.; Lee, K. S.; Lee, S. C.; Oh, S. K.; Seo, J.] Gangneung Wonju Natl Univ, Kangnung, South Korea.
[Akindinov, A.; Kiselev, S.; Mal'Kevich, D.; Nedosekin, A.; Voloshin, K.] Inst Theoret & Expt Phys, Moscow 117259, Russia.
[Aleksandrov, D.; Blau, D.; Fokin, S.; Ippolitov, M.; Kazantsev, A.; Kozlov, K.; Kucheriaev, Y.; Nikolaev, S.; Nikulin, S.; Nyanin, A.; Peresunko, D.; Ryabinkin, E.; Sibiriak, Y.; Vasiliev, A.; Vinogradov, A.; Yasnopolskiy, S.; Yushmanov, I.] Kurchatov Inst, Russian Res Ctr, Moscow, Russia.
[Alessandro, B.; Arnaldi, R.; Bagnasco, S.; Cerello, P.; Chiavassa, E.; Coli, S.; Dash, S.; De Marco, N.; De Remigis, R.; Giraudo, G.; Mazza, G.; Mereu, P.; Monteno, M.; Musso, A.; Oppedisano, C.; Piccotti, A.; Prino, F.; Riccati, L.; Rivetti, A.; Scomparin, E.; Tosello, F.] Sezione Ist Nazl Fis Nucl, Turin, Italy.
[Alici, A.; Arcelli, S.; Basile, M.; Bellini, F.; Cifarelli, L.; Falchieri, D.; Guerzoni, B.; Scioli, G.; Silenzi, A.; Zichichi, A.] Univ Bologna, Dipartmento Fis, Bologna, Italy.
[Alici, A.; Arcelli, S.; Basile, M.; Bellini, F.; Cifarelli, L.; Falchieri, D.; Guerzoni, B.; Scioli, G.; Silenzi, A.; Zichichi, A.] Sezione Ist Nazl Fis Nucl, Bologna, Italy.
[Alkin, A.; Grinyov, B.; Martynov, Y.; Zinovjev, G.; Zynovyev, M.] Bogolyubov Inst Theoret Phys, Kiev, Ukraine.
[Alt, T.; Bach, M.; de Cuveland, J.; Gerhard, J.; Gorbunov, S.; Kalcher, S.; Kirsch, S.; Kretz, M.; Painke, F.; Rettig, F.; Rohr, D.] Goethe Univ Frankfurt, Frankfurt Inst Adv Studies, Frankfurt, Germany.
[Altini, V.; Barile, F.; Bruno, G. E.; Erasmo, G. D.; Di Bari, D.; Di Giglio, C.; Fionda, F. M.; Fiore, E. M.; Ghidini, B.; Navach, F.; Nicassio, M.; Perrino, D.; Snellings, R.; Terrevoli, C.; Volpe, G.] Dipartimento Interateneo Fis M Merlin, Bari, Italy.
[Altini, V.; Barile, F.; Bruno, G. E.; Erasmo, G. D.; Di Bari, D.; Di Giglio, C.; Fionda, F. M.; Fiore, E. M.; Ghidini, B.; Navach, F.; Nicassio, M.; Perrino, D.; Snellings, R.; Terrevoli, C.; Volpe, G.] Sezione Ist Nazl Fis Nucl, Bari, Italy.
[Altinpinar, S.; Andronic, A.; Arsene, I. C.; Averbeck, R.; Berdermann, E.; Braun-Munzinger, P.; Doenigus, B.; Fasel, M.; Foka, P.; Frankenfeld, U.; Garabatos, C.; Gutbrod, H.; Hernandez, C.; Huber, S.; Ivan, C.; Ivanov, M.; Knichel, M. L.; Koehler, M. K.; Malzacher, P.; Marin, A.; Masciocchi, S.; Miskowice, D.; Otwinowski, J.; Park, W. J.; Romita, R.; Schmidt, C.; Schmidt, H. R.; Schwarz, K.; Thaeder, J.; Thomas, J. H.; Vranic, D.] GSI Helmholtzzentrum Schwerionenforsch, ExtreMe Matter Inst EMMI, Darmstadt, Germany.
[Altinpinar, S.; Andronic, A.; Arsene, I. C.; Averbeck, R.; Berdermann, E.; Braun-Munzinger, P.; Doenigus, B.; Fasel, M.; Foka, P.; Frankenfeld, U.; Garabatos, C.; Gutbrod, H.; Hernandez, C.; Huber, S.; Ivan, C.; Ivanov, M.; Knichel, M. L.; Koehler, M. K.; Malzacher, P.; Marin, A.; Masciocchi, S.; Miskowice, D.; Otwinowski, J.; Park, W. J.; Romita, R.; Schmidt, C.; Schmidt, H. R.; Schwarz, K.; Thaeder, J.; Thomas, J. H.; Vranic, D.] GSI Helmholtzzentrum Schwerionenforsch, Div Res, Darmstadt, Germany.
[Altsybeev, I.; Asryan, A.; Feofilov, G.; Ivanov, A.; Kolojvari, A.; Kondratiev, V.; Ochirov, A.; Vechernin, V.; Vinogradov, L.; Zarochentsev, A.] St Petersburg State Univ, V Fock Inst Phys, St Petersburg, Russia.
[Andrei, C.; Berceanu, I.; Bercuci, A.; Catanescu, V.; Herghelegiu, A.; Petris, M.; Petrovici, M.; Pop, A.; Schiaua, C.] Natl Inst Phys & Nucl Engn, Bucharest, Romania.
[Anguelov, V.; Boettger, S.; Breitner, T.; Engel, H.; Kebschull, U.; Kisel, I.; Lara, C.; Lindenstruth, V.; Steinbeck, T.; Zelnicek, P.] Heidelberg Univ, Kirchhoff Inst Phys, Heidelberg, Germany.
[Anson, C.; Bock, N.; Humanic, T. J.; Lisa, M. A.; Truesdale, D.] Ohio State Univ, Dept Phys, Columbus, OH 43210 USA.
[Anticic, T.; Nikolic, V.; Susa, T.] Rudjer Boskovic Inst, Zagreb, Croatia.
[Antinori, F.; Fabris, D.; Grosso, R.; Turrisi, R.] Sezione Ist Nazl Fis Nucl, Padua, Italy.
[Antonioli, P.; Romeo, G. Cara; Cindolo, F.; Hatzifotiadou, D.; Margotti, A.; Nania, R.; Noferini, F.; Pesci, A.; Real, J. S.; Scapparone, E.; Williams, M. C. S.] Sezione Ist Nazl Fis Nucl, Bologna, Italy.
[Aphecetche, L.; Batigne, G.; del Valle, Z. Conesa; Delagrange, H.; Driga, O.; Estienne, M.; Germain, M.; Ichou, R.; Lefevre, F.; Lenhardt, M.; Luquin, L.; Martinez Garcia, G.; Mas, A.; Pillot, P.; Roy, C.; Schutz, Y.; Stocco, D.] Univ Nantes, Ecole Mines Nantes, SUBATECH, CNRS,IN2P3, Nantes, France.
[Appelshaeuser, H.; Arend, A.; Bailhache, R.; Baumann, C.; Beck, H.; Blume, C.; Book, J.; Buesching, H.; Hartig, M.; Kliemant, M.; Kramer, F.; Lehnert, J.; Vargas, H. Leon; Luettig, P.; Pitz, N.; Renfordt, R.; Schuchmann, S.; Stock, R.; Ulery, J.] Goethe Univ Frankfurt, Inst Kernphys, D-6000 Frankfurt, Germany.
[Arbor, N.; Faivre, J.; Furget, C.; Gadrat, S.; Guernane, R.; Kox, S.; Milosevic, J.] Univ Grenoble 1, CNRS, Inst Polytech Grenoble, CNRS,IN2P3,LPSC, Grenoble, France.
[Armesto, N.; Pajares, C.; Salgado, C. A.] Univ Santiago de Compostela, Dept Fis Particulas, Santiago De Compostela, Spain.
[Armesto, N.; Pajares, C.; Salgado, C. A.] Univ Santiago de Compostela, IGFAE, Santiago De Compostela, Spain.
[Awes, T. C.; Silvermyr, D.] Oak Ridge Natl Lab, Oak Ridge, TN USA.
[Aysto, J.; Chang, B.; Kalliokoski, T.; Kim, D. J.; Kral, J.; Novitzky, N.; Raiha, T. S.; Rak, J.; Rasanen, S. S.; Sarkamo, J.; Trzaska, W. H.] HIP, Jyvaskyla, Finland.
[Aysto, J.; Chang, B.; Kalliokoski, T.; Kim, D. J.; Kral, J.; Novitzky, N.; Raiha, T. S.; Rak, J.; Rasanen, S. S.; Sarkamo, J.; Trzaska, W. H.] Univ Jyvaskyla, Jyvaskyla, Finland.
[Badala, A.; Palmeri, A.; Pappalardo, G. S.; Rak, J.] Sezione Ist Nazl Fis Nucl, Catania, Italy.
[Bala, R.; Beole, S.; Bianchi, L.; Biolcati, E.; Bossu, F.; Morales, Y. Corrales; Ferretti, A.; Gagliardi, M.; Gallio, M.; Giubellino, P.; Innocenti, G. M.; Luparello, G.; Masera, M.; Milano, L.; Ortona, G.; Padilla, F.; Peskov, V.; Poghosyan, M. G.; Siciliano, M.; Vasquez, M. A. Subieta; Vercellin, E.; Zhang, X.] Univ Turin, Dipartimento Fis Sperimentale, Turin, Italy.
[Bala, R.; Beole, S.; Bianchi, L.; Biolcati, E.; Bossu, F.; Morales, Y. Corrales; Ferretti, A.; Gagliardi, M.; Gallio, M.; Giubellino, P.; Innocenti, G. M.; Luparello, G.; Masera, M.; Milano, L.; Ortona, G.; Padilla, F.; Peskov, V.; Poghosyan, M. G.; Siciliano, M.; Vasquez, M. A. Subieta; Vercellin, E.; Zhang, X.] Sezione Ist Nazl Fis Nucl, Turin, Italy.
[Ferroli, R. Baldini; Coccetti, F.; Preghenella, R.] Ctr Studi & Ric, Ctr Fermi, Rome, Italy.
[Ferroli, R. Baldini; Coccetti, F.; Preghenella, R.] Museo Stor Fis Enrico Fermi, Rome, Italy.
[Baldisseri, A.; Borel, H.; Castellanos, J. Castillo; Charvet, J. L.; Geuna, C.; Pal, S.; Rakotozafindrabe, A.; Yang, H.] CEA, IRFU, Saclay, France.
[Ahn, S. U.; Baek, Y. W.; Baldit, A.; Barret, V.; Bastid, N.; Blanc, A.; Crochet, P.; Dupieux, P.; Lopez, X.; Manceau, L.; Manso, F.; Rosnet, P.; Saturnini, P.; Vulpescu, B.] Univ Blaise Pascal, Clermont Univ, CNRS, IN2P3,LPC, Clermont Ferrand, France.
[Ban, J.; Kalinak, P.; Kralik, I.; Krivda, M.; Sandor, L.; Vala, M.] Slovak Acad Sci, Inst Expt Phys, Kosice 04353, Slovakia.
[Barbera, R.; La Rocca, P.; Petta, C.; Pulvirenti, A.; Riggi, F.] Univ Catania, Dipartimento Fis & Astron, Catania, Italy.
[Barbera, R.; La Rocca, P.; Petta, C.; Pulvirenti, A.; Riggi, F.] Sezione Ist Nazl Fis Nucl, Catania, Italy.
[Barnby, L. S.; Evans, D.; Jones, G. T.; Jones, P. G.; Jovanovic, P.; Jusko, A.; Kour, R.; Krivda, M.; Lazzeroni, C.; Lietava, R.; Matthews, Z. L.; Navin, S.; Palaha, A.; Petrov, P.; Platt, R.; Scott, P. A.; Baillie, O. Villalobos] Univ Birmingham, Sch Phys & Astron, Birmingham, AL USA.
[Bartke, J.; Gladysz-Dziadus, E.; Kornas, E.; Kowalski, M.; Matyja, A.; Rybicki, A.] Polish Acad Sci, Henryk Niewodniczanski Inst Nucl Phys, Krakow, Poland.
[Bathen, B.; Dietel, T.; Emschermann, D.; Heide, M.; Kalisky, M.; Klein-Boesing, C.; Rammler, M.; Santo, R.; Wessels, J. P.; Westerhoff, U.; Wilde, M.; Wilk, A.] Univ Munster, Inst Kernphys, D-4400 Munster, Germany.
[Batyunya, B.; Fedunov, A.; Grigoryan, S.; Jancurova, L.; Pocheptsov, T.; Reolon, A. R.; Shabratova, G.; Vala, M.; Vodopyanov, A.; Zaporozhets, S.] JINR, Dubna, Russia.
[Bearden, I. G.; Boggild, H.; Christensen, C. H.; Dalsgaard, H. H.; Gaardhoje, J. J.; Gulbrandsen, K.; Nielsen, B. S.; Nygaard, C.; Sogaard, C.] Univ Copenhagen, Niels Bohr Inst, DK-2100 Copenhagen, Denmark.
[Belikov, I.; Coffin, J. -P.; Hippolyte, B.; Jangal, S.; Kuhn, C.; Maire, A.; Wan, R.] Univ Strasbourg, CNRS, IPHC, IN2P3, Strasbourg, France.
[Bellwied, R.; Cormier, T. M.; Dobrin, A.; Jayarathna, S. P.; Don, C. Kottachchi Kankanamge; Loggins, V. R.; Mlynarz, J.; Pavlinov, A.; Piyarathna, D. B.; Prasad, S. K.; Pruneau, C. A.; Voloshin, S.] Wayne State Univ, Detroit, MI USA.
[Berdnikov, Y.; Ivanov, V.; Khanzadeev, A.; Kryshen, E.; Malaev, M.; Nikulin, V.; Samsonov, V.; Zhalov, M.] Petersburg Nucl Phys Inst, Gatchina, Russia.
[Bhasin, A.; Gupta, A.; Gupta, R.; Mangotra, L.; Potukuchi, B.; Sambyal, S.; Sharma, S.; Singh, R.] Univ Jammu, Dept Phys, Jammu 180004, India.
[Bianchi, N.; Casanova Diaz, A.; Balbastre, G. Conesa; Cunqueiro, L.; Moregula, A. De Azevedo; Di Nezza, P.; Fantoni, A.; Hasch, D.; Muccifora, V.; Ronchetti, F.; Timmins, A. R.] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy.
[Bianchin, C.; Bombonati, C.; Bortolin, C.; Caffarri, D.; Lunardon, M.; Morando, M.; Moretto, S.; Rossi, A.; Sahoo, R.; Scarlassara, F.; Segato, G.; Soramel, F.; Viesti, G.] Univ Padua, Dipartimento Fis, Padua, Italy.
[Bianchin, C.; Bombonati, C.; Bortolin, C.; Caffarri, D.; Lunardon, M.; Morando, M.; Moretto, S.; Rossi, A.; Sahoo, R.; Scarlassara, F.; Segato, G.; Soramel, F.; Viesti, G.] Sezione Ist Nazl Fis Nucl, Padua, Italy.
[Bielcik, J.; Krus, M.; Pachr, M.; Petracek, V.; Pospisil, V.; Smakal, R.; Tlusty, D.; Wagner, V.] Czech Tech Univ, Fac Nucl Sci & Phys Engn, CR-11519 Prague, Czech Republic.
[Bilandzic, A.; Botje, M.; Krzewicki, M.; Kuijer, P. G.; Perez Lara, C. E.; Snellings, R.; van der Kolk, N.] Natl Inst Subatom Phys, Amsterdam, Netherlands.
[Blanco, F.; Cotallo, M. E.; Gonzalez-Zamora, P.; Montes, E.; Rubio Montero, A. J.; Serradilla, E.] CIEMAT, E-28040 Madrid, Spain.
[Blanco, F.; Jayarathna, S. P.; Madagodahettige-Don, D. M.; Pinsky, L.; Pocheptsov, T.] Univ Houston, Houston, TX USA.
[Bogdanov, A.; Grigoriev, V.; Kaplin, V.; Kondratyeva, N.; Loginov, V.] Moscow Engn Phys Inst, Moscow 115409, Russia.
[Bogolyubsky, M.; Kharlov, Y.; Polichtchouk, B.; Sadovsky, S.; Soloviev, A.; Stolpovskiy, M.; Zenin, A.] Inst High Energy Phys, Protvino, Russia.
[Bombara, M.; Putis, M.; Urban, J.; Vrlakova, J.] Safarik Univ, Fac Sci, Kosice, Slovakia.
[Bose, S.; Chattopadhyay, S.; Das, D.; Das, I.; Majumdar, A. K. Dutta; Roy, P.; Sinha, T.] Saha Inst Nucl Phys, Kolkata, India.
[Boyer, B.; Espagnon, B.; Hadjidakis, C.; Hrivnacova, I.; de Guevara, P. Ladron; Lafage, V.; Le Bornec, Y.; Lopez Noriega, M.; Rousseau, S.; Suire, C.; Takaki, J. D. Tapia; Palomo, L. Valencia] Univ Paris 11, CNRS, IN2P3, IPNO, F-91405 Orsay, France.
[Bravina, L.; Dordic, O.; Eyyubova, G.; Kolevatov, R.; Lindal, S.; Lovhoiden, G.; Milosevic, J.; Nilsson, M. S.; Qvigstad, H.; Richter, M.; Skaali, T. B.; Tveter, T. S.; Wikne, J.; Zabrodin, E.] Univ Oslo, Dept Phys, Oslo, Norway.
[Bregant, M.; Camerini, P.; Contin, G.; Lea, R.; Margagliotti, G. V.; Rui, R.; Venaruzzo, M.] Univ Trieste, Dipartmento Fis, I-34127 Trieste, Italy.
[Bregant, M.; Camerini, P.; Contin, G.; Lea, R.; Margagliotti, G. V.; Rui, R.; Venaruzzo, M.] Sezione Ist Nazl Fis Nucl, Trieste, Italy.
[Broz, M.; Fekete, V.; Janik, R.; Pikna, M.; Sitar, B.; Strmen, P.; Szarka, I.] Comenius Univ, Fac Math Phys & Informat, Bratislava, Slovakia.
[Budnikov, D.; Demanov, V.; Filchagin, S.; Ilkaev, R.; Kuryakin, A.; Mamonov, A.; Nazarenko, S.; Nazarov, G.; Punin, V.; Tumkin, A.; Vikhlyantsev, O.; Vinogradov, Y.; Zoccarato, Y.] Russian Fed Nucl Ctr VNIIEF, Sarov, Russia.
[Busch, O.; Constantin, P.; Glaessel, P.; Grajcarek, R.; Herrmann, N.; Klein, J.; Koch, K.; Krawutschke, T.; Krumbhorn, D.; Kweon, M. J.; Lohner, D.; Lu, X. -G.; Mercado Perez, J.; Oyama, K.; Pachmayer, Y.; Radomski, S.; Reygers, K.; Schicker, R.; Schweda, K.; Stachel, J.; Vallero, S.; Wang, Y.; Wiechula, J.; Windelband, B.] Heidelberg Univ, Inst Phys, D-6900 Heidelberg, Germany.
[Buthelezi, Z.; Cleymans, J.; Fearick, R.; Foertsch, S.; Steyn, G.; Vilakazi, Z.] Univ Cape Town, Dept Phys, iThemba LABS, ZA-7925 Cape Town, South Africa.
[Cai, X.; Ma, K.; Mao, Y.; Wang, D.; Wang, Y.; Yin, Z.; Yuan, X.; Zhang, X.; Zhou, D.; Zhu, X.; Zichichi, A.] Hua Zhong Normal Univ, Wuhan, Peoples R China.
[Villar, E. Calvo; Mercado, Y. Delgado; Gago, A.; Guerra Gutierrez, C.] Pontificia Univ Catolica Peru, Dept Ciencias, Secc Fis, Lima, Peru.
[Cherney, M.; Nilsen, B. S.; Turvey, A. J.] Creighton Univ, Dept Phys, Omaha, NE 68178 USA.
[Cheshkov, C.; Cheynis, B.; Ducroux, L.; Grossiord, J. -Y.; Massacrier, L.; Nendaz, F.; Tieulent, R.] Univ Lyon 1, CNRS, IN2P3, IPN Lyon, F-69622 Villeurbanne, France.
[Chinellato, D. D.; Cosentino, M. R.; Takahashi, J.] Univ Estadual Campinas UNICAMP, Campinas, SP, Brazil.
[Chojnacki, M.; Christakoglou, P.; de Rooij, R.; Grelli, A.; Kamermans, R.; Mischke, A.; Nooren, G.; Peitzmann, T.; Thomas, D.; van Leeuwen, M.; Verweij, M.] Natl Inst Subatom Phys, Utrecht, Netherlands.
[Chojnacki, M.; Christakoglou, P.; de Rooij, R.; Grelli, A.; Kamermans, R.; Mischke, A.; Nooren, G.; Peitzmann, T.; Thomas, D.; van Leeuwen, M.; Verweij, M.] Univ Utrecht, Inst Subatom Phys, Utrecht, Netherlands.
[Christiansen, P.; Dobrin, A.; Gros, P.; Oskarsson, A.; Otterlund, I.; Stenlund, E.] Lund Univ, Div Expt High Energy Phys, Lund, Sweden.
[Chujo, T.; Esumi, S.; Horaguchi, T.; Inaba, M.; Sakata, D.; Sano, M.; Shimomura, M.; Watanabe, K.; Yokoyama, H.] Univ Tsukuba, Tsukuba, Ibaraki, Japan.
[Cicalo, C.; Masoni, A.] Sezione Ist Nazl Fis Nucl, Cagliari, Italy.
[Contreras, J. G.; Crescio, E.; Herrera Corral, G.; Montano Zetina, L.; Ramirez Reyes, A.] CINVESTAV, Mexico City 14000, DF, Mexico.
[Contreras, J. G.; Crescio, E.; Herrera Corral, G.; Montano Zetina, L.; Ramirez Reyes, A.] CINVESTAV, Merida, Venezuela.
[Maldonado, I. Cortes; Fernandez Tellez, A.; Gonzalez Santos, H.; Martinez, M. I.; Miake, Y.; Munoz, J.; Rodriguez Cahuantzi, M.; Tejeda Munoz, G.; Vargas, A.; Vergara, S.] Benemerita Univ Autonoma Puebla, Puebla, Mexico.
[Cortese, P.; Dellacasa, G.; Ferretti, R.; Ramello, L.; Senyukov, S.; Sitta, M.] Univ Piemonte Orientale, Dipartimento Sci & Tecnol Avanzate, Alessandria, Italy.
[Cortese, P.; Dellacasa, G.; Ferretti, R.; Ramello, L.; Senyukov, S.; Sitta, M.] Grp Coll INFN, Alessandria, Italy.
[Cuautle, E.; Dominguez, I.; Cervantes, I. Maldonado; Mayani, D.; Velasquez, A. Ortiz; Paic, G.; Piyarathna, D. B.] Univ Nacl Autonoma Mexico, Inst Ciencias Nucl, Mexico City 04510, DF, Mexico.
[Dainese, A.; Ricci, R. A.; Vannucci, L.] Ist Nazl Fis Nucl, Lab Nazl Legnaro, I-35020 Legnaro, Italy.
[Danu, A.; Felea, D.; Haiduc, M.; Hasegan, D.; Mitu, C.; Sevcenco, A.; Stan, I.; Zgura, I.] ISS, Bucharest, Romania.
[Dash, A.; Mahapatra, D. P.; Sahu, P. K.] Inst Phys, Bhubaneswar 751007, Orissa, India.
[de Barros, G. O. V.; Deppman, A.; Figueredo, M. A. S.; Moreira De Godoy, D. A.; Munhoz, M. G.; Suaide, A. A. P.; de Toledo, A. Szanto] Univ Sao Paulo, BR-09500900 Sao Paulo, Brazil.
[De Caro, A.; De Gruttola, D.; De Pasquale, S.; Girard, M. Fusco; Virgili, T.] Univ Salerno, Dipartimento Fis ER Caianiello, I-84100 Salerno, Italy.
[De Caro, A.; De Gruttola, D.; De Pasquale, S.; Girard, M. Fusco; Virgili, T.] Grp Coll INFN, Salerno, Italy.
[de Cataldo, G.; Elia, D.; Fini, R.; Lenti, V.; Manzari, V.; Mastromarco, M.; Nappi, E.; Paticchio, V.; Santoro, R.] Sezione Ist Nazl Fis Nucl, Bari, Italy.
[De Falco, A.; Incani, E.; Puddu, G.; Serci, S.; Uras, A.; Usai, G. L.] Univ Cagliari, Dipartimento Fis, Cagliari, Italy.
[De Falco, A.; Incani, E.; Puddu, G.; Serci, S.; Uras, A.; Usai, G. L.] Sezione Ist Nazl Fis Nucl, Cagliari, Italy.
[Deloff, A.; Dobrowolski, T.; Ilkiv, I.; Kurashvili, P.; Redlich, K.; Siemiarczuk, T.; Stefanek, G.; Wilk, G.] Soltan Inst Nucl Studies, PL-00681 Warsaw, Poland.
[Di Liberto, S.; Mazzoni, M. A.; Urciuoli, G. M.] Sezione Ist Nazl Fis Nucl, Rome, Italy.
[Erdal, H. A.; Helstrup, H.; Hetland, K. F.; Kileng, B.] Bergen Univ Coll, Fac Engn, Bergen, Norway.
[Finogeev, D.; Guber, F.; Karavichev, O.; Karavicheva, T.; Karpechev, E.; Konevskih, A.; Kurepin, A.; Kurepin, A. B.; Maevskaya, A.; Pshenichnov, I.; Reshetin, A.] Acad Sci, Inst Nucl Res, Moscow, Russia.
[Fragiacomo, E.; Grion, N.; Piano, S.; Rachevski, A.; Vacchi, A.] Sezione Ist Nazl Fis Nucl, Trieste, Italy.
[Fragkiadakis, M.; Ganoti, P.; Roukoutakis, F.; Spyropoulou-Stassinaki, M.; Tagridis, C.; Vasileiou, M.] Univ Athens, Dept Phys, Athens, Greece.
[Girard, M. R.; Oleniacz, J.; Ostrowski, P.; Pawlak, T.; Peryt, W.; Pluta, J.; Traczyk, T.; Zbroszczyk, H.] Warsaw Univ Technol, Warsaw, Poland.
[Gomez, R.; Monzon, I. Leon; Podesta-Lerma, P. L. M.] Univ Autonoma Sinaloa, Culiacan, Mexico.
[Gotovac, S.; Mudnic, E.; Vickovic, L.] Tech Univ Split FESB, Split, Croatia.
[Grigoryan, A.; Gulkanyan, H.; Hayrapetyan, A.] Yerevan Phys Inst, Yerevan 375036, Armenia.
[Gunji, T.; Hamagaki, H.; Hori, Y.; Ozawa, K.; Sano, S.] Univ Tokyo, Tokyo, Japan.
[Hwang, D. S.; Kim, J. H.; Kim, S.; Son, H.] Sejong Univ, Dept Phys, Seoul, South Korea.
[Jacobs, P. M.; Loizides, C.; Ploskon, M.; Sakai, S.; Symons, T. J. M.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
[Jena, S.; Meethaleveedu, G. Koyithatta; Nandi, B. K.; Nyatha, A.; Varma, R.] Indian Inst Technol, Mumbai 400076, Maharashtra, India.
[Kalweit, A.; Kraus, I.; Oeschler, H.; Ricaud, H.] Tech Univ Darmstadt, Inst Kernphys, Darmstadt, Germany.
[Kang, J. H.; Kim, M.; Kwon, Y.; Song, M.] Yonsei Univ, Seoul 120749, South Korea.
[Keidel, R.] Fachhsch Worms, ZTT, Worms, Germany.
[Klay, J. L.] Calif Polytech State Univ San Luis Obispo, San Luis Obispo, CA 93407 USA.
[Li, X.] China Inst Atom Energy, Beijing, Peoples R China.
[Mares, J.; Polak, K.; Zavada, P.] Acad Sci Czech Republic, Inst Phys, Prague, Czech Republic.
[Martashvili, I.; Nattrass, C.; Read, K. F.; Scott, R.] Univ Tennessee, Knoxville, TN USA.
[Meddi, F.] Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy.
[Meddi, F.] Sezione Ist Nazl Fis Nucl, Rome, Italy.
[Midori, J.; Obayashi, H.; Shigaki, K.; Sugitate, T.; Torii, H.] Hiroshima Univ, Hiroshima, Japan.
[Newby, J.; Soltz, R.] Lawrence Livermore Natl Lab, Livermore, CA USA.
[Pestov, Y.] Budker Inst Nucl Phys, Novosibirsk 630090, Russia.
[Raniwala, R.; Raniwala, S.] Univ Rajasthan, Dept Phys, Jaipur 302004, Rajasthan, India.
[Scharenberg, R. P.; Srivastava, B. K.] Purdue Univ, W Lafayette, IN 47907 USA.
[Vernet, R.] IN2P3, Ctr Calcul, Villeurbanne, France.
[Yi, J.; Yoo, I. -K.] Pusan Natl Univ, Pusan 609735, South Korea.
[Bortolin, C.] Univ Udine, Dipartimento Fis, I-33100 Udine, Italy.
[Fabjan, C. W.] Vienna Univ Technol, A-1040 Vienna, Austria.
[Fabjan, C. W.] Austrian Acad Sci, A-1010 Vienna, Austria.
[Krawutschke, T.] Fachhsch Koln, Cologne, Germany.
[Pagano, P.] Vinca Inst Nucl Sci, Belgrade, Serbia.
[Simonetti, G.] Univ Tubingen, Tubingen, Germany.
RP Aamodt, K (reprint author), Univ Bergen, Dept Phys & Technol, Bergen, Norway.
RI Altsybeev, Igor/K-6687-2013; Vechernin, Vladimir/J-5832-2013; Adamova,
Dagmar/G-9789-2014; De Pasquale, Salvatore/B-9165-2008; de Cuveland,
Jan/H-6454-2016; Kurepin, Alexey/H-4852-2013; Akindinov,
Alexander/J-2674-2016; Nattrass, Christine/J-6752-2016; Suaide,
Alexandre/L-6239-2016; van der Kolk, Naomi/M-9423-2016; Deppman,
Airton/J-5787-2014; Oh, Sun Kun/D-6993-2011; Gaardhoje,
Jens-Jorgen/F-9008-2011; Mitu, Ciprian/E-6733-2011; Haiduc, Maria
/C-5003-2011; Traczyk, Tomasz/C-1310-2013; Sevcenco, Adrian/C-1832-2012;
Felea, Daniel/C-1885-2012; Bagnasco, Stefano/J-4324-2012; Aglieri
Rinella, Gianluca/I-8010-2012; Christensen, Christian/D-6461-2012;
Christensen, Christian Holm/A-4901-2010; Masera, Massimo/J-4313-2012;
Takahashi, Jun/B-2946-2012; Guber, Fedor/I-4271-2013; Voloshin,
Sergei/I-4122-2013; Peitzmann, Thomas/K-2206-2012; Barbera,
Roberto/G-5805-2012; Yang, Hongyan/J-9826-2014; Bielcikova,
Jana/G-9342-2014; Kharlov, Yuri/D-2700-2015; Usai, Gianluca/E-9604-2015;
Salgado, Carlos A./G-2168-2015; Bruna, Elena/C-4939-2014; HAMAGAKI,
HIDEKI/G-4899-2014; Pshenichnov, Igor/A-4063-2008; Zarochentsev,
Andrey/J-6253-2013; feofilov, grigory/A-2549-2013; Kondratiev,
Valery/J-8574-2013; Sumbera, Michal/O-7497-2014; Barnby,
Lee/G-2135-2010; Castillo Castellanos, Javier/G-8915-2013; Barnafoldi,
Gergely Gabor/L-3486-2013; Ramello, Luciano/F-9357-2013; Mischke,
Andre/D-3614-2011; Martinez Davalos, Arnulfo/F-3498-2013; Wagner,
Vladimir/G-5650-2014; Cosentino, Mauro/L-2418-2014; Levai,
Peter/A-1544-2014; Blau, Dmitry/H-4523-2012; Bearden, Ian/M-4504-2014;
Coccetti, Fabrizio/H-4004-2011; Cortese, Pietro/G-6754-2012; Chinellato,
David/D-3092-2012; Vacchi, Andrea/C-1291-2010; Gagliardi,
Martino/J-4787-2012; SCAPPARONE, EUGENIO/H-1805-2012; Turrisi,
Rosario/H-4933-2012; beole', stefania/G-9353-2012; Bregant,
Marco/I-7663-2012; Inst. of Physics, Gleb Wataghin/A-9780-2017; Armesto,
Nestor/C-4341-2017; Martinez Hernandez, Mario Ivan/F-4083-2010;
Ferretti, Alessandro/F-4856-2013; Vickovic, Linda/F-3517-2017; Fernandez
Tellez, Arturo/E-9700-2017; Vinogradov, Leonid/K-3047-2013;
OI Altsybeev, Igor/0000-0002-8079-7026; Vechernin,
Vladimir/0000-0003-1458-8055; De Pasquale,
Salvatore/0000-0001-9236-0748; de Cuveland, Jan/0000-0003-0455-1398;
Kurepin, Alexey/0000-0002-1851-4136; Akindinov,
Alexander/0000-0002-7388-3022; Nattrass, Christine/0000-0002-8768-6468;
Suaide, Alexandre/0000-0003-2847-6556; van der Kolk,
Naomi/0000-0002-8670-0408; Deppman, Airton/0000-0001-9179-6363;
Gaardhoje, Jens-Jorgen/0000-0001-6122-4698; Traczyk,
Tomasz/0000-0002-6602-4094; Sevcenco, Adrian/0000-0002-4151-1056; Felea,
Daniel/0000-0002-3734-9439; Aglieri Rinella,
Gianluca/0000-0002-9611-3696; Christensen,
Christian/0000-0002-1850-0121; Christensen, Christian
Holm/0000-0002-1850-0121; Takahashi, Jun/0000-0002-4091-1779; Guber,
Fedor/0000-0001-8790-3218; Peitzmann, Thomas/0000-0002-7116-899X;
Barbera, Roberto/0000-0001-5971-6415; Usai,
Gianluca/0000-0002-8659-8378; Salgado, Carlos A./0000-0003-4586-2758;
Bruna, Elena/0000-0001-5427-1461; Pshenichnov, Igor/0000-0003-1752-4524;
Zarochentsev, Andrey/0000-0002-3502-8084; feofilov,
grigory/0000-0003-3700-8623; Kondratiev, Valery/0000-0002-0031-0741;
Sumbera, Michal/0000-0002-0639-7323; Barnby, Lee/0000-0001-7357-9904;
Castillo Castellanos, Javier/0000-0002-5187-2779; Martinez Davalos,
Arnulfo/0000-0002-9481-9548; Paticchio, Vincenzo/0000-0002-2916-1671;
Monteno, Marco/0000-0002-3521-6333; Bhasin, Anju/0000-0002-3687-8179;
SANTORO, ROMUALDO/0000-0002-4360-4600; Scarlassara,
Fernando/0000-0002-4663-8216; Turrisi, Rosario/0000-0002-5272-337X;
Tosello, Flavio/0000-0003-4602-1985; Beole',
Stefania/0000-0003-4673-8038; Cosentino, Mauro/0000-0002-7880-8611;
Bearden, Ian/0000-0003-2784-3094; Chinellato, David/0000-0002-9982-9577;
Vacchi, Andrea/0000-0003-3855-5856; Armesto, Nestor/0000-0003-0940-0783;
Martinez Hernandez, Mario Ivan/0000-0002-8503-3009; Ferretti,
Alessandro/0000-0001-9084-5784; Vickovic, Linda/0000-0002-9820-7960;
Fernandez Tellez, Arturo/0000-0003-0152-4220; Coccetti,
Fabrizio/0000-0001-7041-3394; Vinogradov, Leonid/0000-0001-9247-6230;
Mohanty, Bedangadas/0000-0001-9610-2914; Gago Medina, Alberto
Martin/0000-0002-0019-9692; Dainese, Andrea/0000-0002-2166-1874
FU Calouste Gulbenkian Foundation from Lisbon; Swiss Fonds Kidagan,
Armenia; Conselho Nacional de Desenvolvimento Cientifico e Tecnologico
(CNPq); Financiadora de Estudos e Projetos (FINEP); Fundacao de Amparo a
Pesquisa do Estado de Sao Paulo (FAPESP); National Natural Science
Foundation of China (NSFC); Chinese Ministry of Education (CMOE);
Ministry of Science and Technology of China (MSTC); Ministry of
Education and Youth of the Czech Republic; Danish Natural Science
Research Council; Carlsberg Foundation; Danish National Research
Foundation; European Research Council under the European Community;
Helsinki Institute of Physics; Academy of Finland; French CNRS; IN2P3;
Region Pays de Loire; Region Alsace; Region Auvergne; CEA, France;
German BMBF; Helmholtz Association; Greek Ministry of Research and
Technology; Hungarian OTKA; National Office for Research and Technology
(NKTH); Department of Atomic Energy; Department of Science and
Technology of the Government of India; Istituto Nazionale di Fisica
Nucleare (INFN) of Italy; MEXT, Japan; Joint Institute for Nuclear
Research, Dubna; National Research Foundation of Korea (NRF); CONACYT;
DGAPA, Mexico; ALFA-EC; HELEN Program (High-Energy physics
Latin-American-European Network); Stichting voor Fundamenteel Onderzoek
der Materie (FOM); Nederlandse Organisatie voor Wetenschappelijk
Onderzoek (NWO), Netherlands; Research Council of Norway (NFR); Polish
Ministry of Science and Higher Education; National Authority for
Scientific Research-NASR (Autoritatea Nationala pentru Cercetare
Stiintifica-ANCS); Federal Agency of Science of the Ministry of
Education and Science of Russian Federation; International Science and
Technology Center; Russian Academy of Sciences; Russian Federal Agency
of Atomic Energy; Russian Federal Agency for Science and Innovations;
CERN-INTAS; Ministry of Education of Slovakia; CIEMAT; EELA; Ministerio
de Educacion y Ciencia of Spain; Xunta de Galicia (Conselleria de
Educacion); CEADEN; Cubaenergia, Cuba; IAEA (International Atomic Energy
Agency); Ministry of Science and Technology and the National Research
Foundation (NRF), South Africa; Knut & Alice Wallenberg Foundation
(KAW); Ukraine Ministry of Education and Science; United States National
Science Foundation; State of Texas; State of Ohio
FX The ALICE collaboration would like to thank all its engineers and
technicians for their invaluable contributions to the construction of
the experiment and the CERN accelerator teams for the outstanding
performance of the LHC complex. The ALICE collaboration acknowledges the
following funding agencies for their support in building and running the
ALICE detector: Calouste Gulbenkian Foundation from Lisbon and Swiss
Fonds Kidagan, Armenia; Conselho Nacional de Desenvolvimento Cientifico
e Tecnologico (CNPq), Financiadora de Estudos e Projetos (FINEP),
Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP); National
Natural Science Foundation of China (NSFC), the Chinese Ministry of
Education (CMOE) and the Ministry of Science and Technology of China
(MSTC); Ministry of Education and Youth of the Czech Republic; Danish
Natural Science Research Council, the Carlsberg Foundation and the
Danish National Research Foundation; The European Research Council under
the European Community's Seventh Framework Programme; Helsinki Institute
of Physics and the Academy of Finland; French CNRS-IN2P3, the "Region
Pays de Loire'', "Region Alsace'', "Region Auvergne'' and CEA, France;
German BMBF and the Helmholtz Association; Greek Ministry of Research
and Technology; Hungarian OTKA and National Office for Research and
Technology (NKTH); Department of Atomic Energy and Department of Science
and Technology of the Government of India; Istituto Nazionale di Fisica
Nucleare (INFN) of Italy; MEXT Grant-in-Aid for Specially Promoted
Research, Japan; Joint Institute for Nuclear Research, Dubna; National
Research Foundation of Korea (NRF); CONACYT, DGAPA, Mexico, ALFA-EC and
the HELEN Program (High-Energy physics Latin-American-European Network);
Stichting voor Fundamenteel Onderzoek der Materie (FOM) and the
Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO),
Netherlands; Research Council of Norway (NFR); Polish Ministry of
Science and Higher Education; National Authority for Scientific
Research-NASR (Autoritatea Nationala pentru Cercetare Stiintifica-ANCS);
Federal Agency of Science of the Ministry of Education and Science of
Russian Federation, International Science and Technology Center, Russian
Academy of Sciences, Russian Federal Agency of Atomic Energy, Russian
Federal Agency for Science and Innovations and CERN-INTAS; Ministry of
Education of Slovakia; CIEMAT, EELA, Ministerio de Educacion y Ciencia
of Spain, Xunta de Galicia (Conselleria de Educacion), CEADEN,
Cubaenergia, Cuba, and IAEA (International Atomic Energy Agency); The
Ministry of Science and Technology and the National Research Foundation
(NRF), South Africa; Swedish Reseach Council (VR) and Knut & Alice
Wallenberg Foundation (KAW); Ukraine Ministry of Education and Science;
United Kingdom Science and Technology Facilities Council (STFC); The
United States Department of Energy, the United States National Science
Foundation, the State of Texas, and the State of Ohio.
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PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
EI 1079-7114
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD JAN 20
PY 2011
VL 106
IS 3
AR 032301
DI 10.1103/PhysRevLett.106.032301
PG 10
WC Physics, Multidisciplinary
SC Physics
GA 713LI
UT WOS:000286739100003
PM 21405267
ER
PT J
AU Fishman, RS
AF Fishman, Randy S.
TI Phase Diagram of a Geometrically Frustrated Triangular-Lattice
Antiferromagnet in a Magnetic Field
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID FERROELECTRICITY; MULTIFERROICS; CUFEO2
AB The magnetic phase diagram of a geometrically frustrated triangular-lattice antiferromagnet is evaluated as a function of magnetic field and anisotropy using a trial spin state built from harmonics of a fundamental ordering wave vector. A noncollinear incommensurate state, observed to be chiral and ferroelectric in CuFeO(2), appears above a collinear state with 4 sublattices (SLs). The apparent absence of multiferroic behavior for predicted chiral, noncollinear 5-SL states poses a challenge to theories of the ferroelectric coupling in CuFeO(2).
C1 Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA.
RP Fishman, RS (reprint author), Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA.
RI Fishman, Randy/C-8639-2013
FU U.S. Department of Energy, Office of Basic Energy Sciences, Materials
Sciences and Engineering Division
FX I would like to acknowledge helpful discussions with Dr. Feng Ye and Dr.
Tsuyoshi Kimura. Research sponsored by the U.S. Department of Energy,
Office of Basic Energy Sciences, Materials Sciences and Engineering
Division.
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SN 0031-9007
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD JAN 20
PY 2011
VL 106
IS 3
AR 037206
DI 10.1103/PhysRevLett.106.037206
PG 4
WC Physics, Multidisciplinary
SC Physics
GA 713LI
UT WOS:000286739100013
PM 21405294
ER
PT J
AU Patel, AJ
Rappl, TJ
Balsara, NP
AF Patel, Amish J.
Rappl, Timothy J.
Balsara, Nitash P.
TI Similarity of the Signatures of the Initial Stages of Phase Separation
in Metastable and Unstable Polymer Blends
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID ANGLE NEUTRON-SCATTERING; SPINODAL DECOMPOSITION; NUCLEATION; MIXTURES
AB Time-resolved small angle neutron scattering was used to probe the initial stages of liquid-liquid phase separation in both critical and off-critical binary polymer blends, and the critical (q(c)) and most probable (q(m)) wave vectors were identified for several quench depths. For the critical blend, the Cahn-Hilliard-Cook theory provides a framework for analyzing the data and explains the observed decrease in q(m) with time. For the off-critical blend, q(m) is independent of quench time, regardless of whether the quench is metastable or unstable.
C1 [Patel, Amish J.; Rappl, Timothy J.; Balsara, Nitash P.] Univ Calif Berkeley, Dept Chem Engn, Berkeley, CA 94720 USA.
[Balsara, Nitash P.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA.
[Balsara, Nitash P.] Univ Calif Berkeley, Lawrence Berkeley Lab, Environm Energy Technol Div, Berkeley, CA 94720 USA.
RP Patel, AJ (reprint author), Univ Calif Berkeley, Dept Chem Engn, Berkeley, CA 94720 USA.
EM nbalsara@berkeley.edu
RI Madruga, Santiago/D-2984-2012
FU National Science Foundation (NSF) [BET 0966632, DMR-0966662,
DMR-0454672]; Tyco Electronics
FX We acknowledge the National Science Foundation (NSF, Grants No. CBET
0966632 and No. DMR-0966662) and Tyco Electronics for financial support,
the National Institute of Standards and Technology and U.S. Department
of Commerce, for providing the neutron research facilities used in this
work (NSF, Grant No. DMR-0454672), and Boualem Hammouda for his
guidance.
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PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD JAN 20
PY 2011
VL 106
IS 3
AR 035702
DI 10.1103/PhysRevLett.106.035702
PG 4
WC Physics, Multidisciplinary
SC Physics
GA 713LI
UT WOS:000286739100007
PM 21405281
ER
PT J
AU Shekhter, A
Bulaevskii, LN
Batista, CD
AF Shekhter, A.
Bulaevskii, L. N.
Batista, C. D.
TI Vortex Viscosity in Magnetic Superconductors Due to Radiation of Spin
Waves
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID MULTILAYERS; MOTION; STATE; FILM
AB In type-II superconductors that contain a lattice of magnetic moments, vortices polarize the magnetic system inducing additional contributions to the vortex mass, vortex viscosity, and vortex-vortex interaction. Extra magnetic viscosity is caused by radiation of spin waves by a moving vortex. Like in the case of Cherenkov radiation, this effect has a characteristic threshold behavior and the resulting vortex viscosity may be comparable to the well-known Bardeen-Stephen contribution. The threshold behavior leads to an anomaly in the current-voltage characteristics, and a drop in dissipation for a current interval that is determined by the magnetic excitation spectrum.
C1 [Shekhter, A.] Natl High Magnet Field Lab, Tallahassee, FL 32310 USA.
[Bulaevskii, L. N.; Batista, C. D.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Shekhter, A (reprint author), Natl High Magnet Field Lab, Tallahassee, FL 32310 USA.
RI Shekhter, Arkady/H-4941-2015; Batista, Cristian/J-8008-2016
OI Shekhter, Arkady/0000-0003-1550-3690;
FU U.S. Department of Energy, Office of Basic Energy Sciences, Division of
Materials Sciences and Engineering
FX We thank Leonardo Civale and Boris Maiorov for discussion of
experimental details. Research supported by the U.S. Department of
Energy, Office of Basic Energy Sciences, Division of Materials Sciences
and Engineering.
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SN 0031-9007
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD JAN 20
PY 2011
VL 106
IS 3
AR 037001
DI 10.1103/PhysRevLett.106.037001
PG 4
WC Physics, Multidisciplinary
SC Physics
GA 713LI
UT WOS:000286739100011
PM 21405287
ER
PT J
AU Titze, J
Schoffler, MS
Kim, HK
Trinter, F
Waitz, M
Voigtsberger, J
Neumann, N
Ulrich, B
Kreidi, K
Wallauer, R
Odenweller, M
Havermeier, T
Schossler, S
Meckel, M
Foucar, L
Jahnke, T
Czasch, A
Schmidt, LPH
Jagutzki, O
Grisenti, RE
Schmidt-Bocking, H
Ludde, HJ
Dorner, R
AF Titze, J.
Schoeffler, M. S.
Kim, H. -K.
Trinter, F.
Waitz, M.
Voigtsberger, J.
Neumann, N.
Ulrich, B.
Kreidi, K.
Wallauer, R.
Odenweller, M.
Havermeier, T.
Schoessler, S.
Meckel, M.
Foucar, L.
Jahnke, T.
Czasch, A.
Schmidt, L. Ph. H.
Jagutzki, O.
Grisenti, R. E.
Schmidt-Boecking, H.
Luedde, H. J.
Doerner, R.
TI Ionization Dynamics of Helium Dimers in Fast Collisions with He++
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID BINDING-ENERGY; MOMENTUM SPECTROSCOPY; RECOIL-ION; ELECTRONS; STATE;
RETARDATION; CLUSTERS; ATOMS; DECAY; WATER
AB By employing the cold target recoil ion momentum spectroscopy technique, we have investigated the (He+, He+) breakup of a helium dimer (He-2) caused by transfer ionization and double capture in collisions with alpha particles (E = 150 keV/u). Surprisingly, the results show a two-step process as well as a one-step process followed by electron exchange. In addition, interatomic Coulombic decay [L. S. Cederbaum, J. Zobeley, and F. Tarantelli, Phys. Rev. Lett. 79, 4778 (1997).] is observed in an ion collision for the first time.
C1 [Titze, J.; Kim, H. -K.; Trinter, F.; Waitz, M.; Voigtsberger, J.; Neumann, N.; Ulrich, B.; Wallauer, R.; Odenweller, M.; Havermeier, T.; Schoessler, S.; Meckel, M.; Jahnke, T.; Czasch, A.; Schmidt, L. Ph. H.; Jagutzki, O.; Grisenti, R. E.; Schmidt-Boecking, H.; Doerner, R.] Goethe Univ Frankfurt, Inst Kernphys, D-60438 Frankfurt, Germany.
[Schoeffler, M. S.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
[Kreidi, K.] GSI Helmholtzzentrum Schwerionenforsch GmbH, D-64291 Darmstadt, Germany.
[Foucar, L.] Max Planck Inst Kernphys, D-69117 Heidelberg, Germany.
[Luedde, H. J.] Goethe Univ Frankfurt, Inst Theoret Phys, D-60438 Frankfurt, Germany.
RP Titze, J (reprint author), Goethe Univ Frankfurt, Inst Kernphys, Max von Laue Str 1, D-60438 Frankfurt, Germany.
EM doerner@atom.unifrankfurt.de
RI Doerner, Reinhard/A-5340-2008; Schoeffler, Markus/B-6261-2008
OI Doerner, Reinhard/0000-0002-3728-4268; Schoeffler,
Markus/0000-0001-9214-6848
FU Deutsche Forschungsgemeinschaft (DFG)
FX We thank Nikolai Kryzhevoi for providing the data for Fig. 2(e). This
work was supported by the Deutsche Forschungsgemeinschaft (DFG).
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SN 0031-9007
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD JAN 20
PY 2011
VL 106
IS 3
AR 033201
DI 10.1103/PhysRevLett.106.033201
PG 4
WC Physics, Multidisciplinary
SC Physics
GA 713LI
UT WOS:000286739100004
PM 21405271
ER
PT J
AU Kirchherr, JL
Hamilton, J
Lu, XZ
Gnanakaran, S
Muldoon, M
Daniels, M
Kasongo, W
Chalwe, V
Mulenga, C
Mwananyanda, L
Musonda, RM
Yuan, X
Montefiori, DC
Korber, BT
Haynes, BF
Gao, F
AF Kirchherr, Jennifer L.
Hamilton, Jennifer
Lu, Xiaozhi
Gnanakaran, S.
Muldoon, Mark
Daniels, Marcus
Kasongo, Webster
Chalwe, Victor
Mulenga, Chanda
Mwananyanda, Lawrence
Musonda, Rosemary M.
Yuan, Xing
Montefiori, David C.
Korber, Bette T.
Haynes, Barton F.
Gao, Feng
TI Identification of amino acid substitutions associated with
neutralization phenotype in the human immunodeficiency virus type-1
subtype C gp120
SO VIROLOGY
LA English
DT Article
DE HIV-1; Envelope; Genetic variation; Neutralization; Signature
ID HUMAN MONOCLONAL-ANTIBODIES; CROSS-CLADE NEUTRALIZATION; ENVELOPE
GLYCOPROTEIN; ENV CLONES; POINT MUTATIONS; HIV-1; VACCINE; GP41;
TRANSMISSION; INFECTION
AB Neutralizing antibodies (Nabs) are thought to play an important role in prevention and control of HIV-1 infection and should be targeted by an AIDS vaccine. It is critical to understand how HIV-1 induces Nabs by analyzing viral sequences in both tested viruses and sera. Neutralization susceptibility to antibodies in autologous and heterologous plasma was determined for multiple Envs (3-6) from each of 15 subtype-C-infected individuals. Heterologous neutralization was divided into two distinct groups: plasma with strong, cross-reactive neutralization (n=9) and plasma with weak neutralization (n=6). Plasma with cross-reactive heterologous Nabs also more potently neutralized contemporaneous autologous viruses. Analysis of Env sequences in plasma from both groups revealed a three-amino-acid substitution pattern in the V4 region that was associated with greater neutralization potency and breadth. Identification of such potential neutralization signatures may have important implications for the development of HIV-1 vaccines capable of inducing Nabs to subtype C HIV-1. (C) 2010 Elsevier Inc. All rights reserved.
C1 [Kirchherr, Jennifer L.; Hamilton, Jennifer; Lu, Xiaozhi; Haynes, Barton F.; Gao, Feng] Duke Univ, Duke Human Vaccine Inst, Med Ctr, Durham, NC 27710 USA.
[Kirchherr, Jennifer L.; Hamilton, Jennifer; Lu, Xiaozhi; Haynes, Barton F.; Gao, Feng] Duke Univ, Dept Med, Med Ctr, Durham, NC 27710 USA.
[Yuan, Xing; Montefiori, David C.] Duke Univ, Dept Surg, Med Ctr, Durham, NC 27710 USA.
[Gnanakaran, S.; Daniels, Marcus; Korber, Bette T.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Muldoon, Mark] Univ Manchester, Sch Math, Manchester M13 9PL, Lancs, England.
[Kasongo, Webster; Chalwe, Victor; Mulenga, Chanda; Mwananyanda, Lawrence; Musonda, Rosemary M.] Trop Dis Res Ctr, Ndola, Zambia.
[Korber, Bette T.] Santa Fe Inst, Santa Fe, NM 87501 USA.
RP Gao, F (reprint author), Duke Univ, Duke Human Vaccine Inst, Med Ctr, 3072B MSRB 2,DUMC 103020,106 Res Dr, Durham, NC 27710 USA.
EM fgao@duke.edu
RI Muldoon, Mark/C-7505-2009;
OI Mwananyanda, Lawrence/0000-0002-3034-749X; Gnanakaran,
S/0000-0002-9368-3044; Muldoon, Mark/0000-0002-5004-7195; Korber,
Bette/0000-0002-2026-5757
FU National Institutes of Health/National Institute of Allergy and
Infectious Diseases [R03 AI054155, HIVRAD PO 1 AI35351, AI067854,
AI64518]; Bill and Melinda Gates Foundation; Los Alamos National
Laboratory
FX This work was supported by grants from the National Institutes of
Health/National Institute of Allergy and Infectious Diseases [CIPRA (R03
AI054155) to RMM, HIVRAD PO 1 AI35351, Center for HIV/AIDS Vaccine
Immunology (AI067854), Duke Center for AIDS Research (AI64518) Molecular
Virology Core], the Bill and Melinda Gates Foundation, and a Los Alamos
National Laboratory directed research grant.
NR 63
TC 15
Z9 16
U1 1
U2 3
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 0042-6822
J9 VIROLOGY
JI Virology
PD JAN 20
PY 2011
VL 409
IS 2
BP 163
EP 174
DI 10.1016/j.virol.2010.09.031
PG 12
WC Virology
SC Virology
GA 708MV
UT WOS:000286366800004
PM 21036380
ER
PT J
AU Lancaster, T
Blundell, SJ
Pratt, FL
Schlueter, JA
AF Lancaster, T.
Blundell, S. J.
Pratt, F. L.
Schlueter, J. A.
TI Superconductivity and fluctuating magnetism in quasi-two-dimensional
kappa-(BEDT-TTF)(2)Cu[N(CN)(2)]Br probed with implanted muons
SO PHYSICAL REVIEW B
LA English
DT Article
ID ORGANIC SUPERCONDUCTOR; PENETRATION DEPTH; SPIN-RELAXATION; MU-SR; MOTT
TRANSITION; VORTEX PHASES; BEHAVIOR; METALS; STATE
AB A muon-spin relaxation (mu+SR) investigation is presented for the molecular superconductor kappa-(BEDT-TTF)(2)Cu[N(CN)(2)]Br. Evidence is found for low-temperature phase separation throughout the bulk of the material, with only a fraction of the sample showing a superconducting signal, even for slow cooling. Rapid cooling reduces the superconducting fraction still further. For the superconducting phase, the in-plane penetration depth is measured to be lambda(parallel to) = 0.47(1) mu m, and evidence is seen for a vortex decoupling transition in applied fields above 40 mT. The magnetic fluctuations in the normal state produce a precipitous drop in relaxation rate above 100 K, and we discuss the possible causes for the unusual relaxation that we observe for T > T-c.
C1 [Lancaster, T.; Blundell, S. J.] Univ Oxford, Dept Phys, Clarendon Lab, Oxford OX1 3PU, England.
[Pratt, F. L.] Rutherford Appleton Lab, ISIS Facil, Chilton OX11 0QX, Oxon, England.
[Schlueter, J. A.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA.
RP Lancaster, T (reprint author), Univ Oxford, Dept Phys, Clarendon Lab, Parks Rd, Oxford OX1 3PU, England.
EM t.lancaster1@physics.ox.ac.uk
FU EPSRC (United Kingdom); U. Chicago Argonne, LLC, operator of Argonne
National Laboratory; Argonne, a US Department of Energy Office of
Science laboratory [DE-AC02-06CH11357]
FX We are grateful to Alex Amato, Andrew Steele, and Peter Baker for
experimental assistance and to EPSRC (United Kingdom) for financial
support. Part of this work was performed at S mu S and part at the STFC
ISIS facility, and we are grateful to PSI and STFC for the provision of
beamtime. Work was supported by U. Chicago Argonne, LLC, operator of
Argonne National Laboratory. Argonne, a US Department of Energy Office
of Science laboratory, is operated under Contract No. DE-AC02-06CH11357.
NR 36
TC 4
Z9 4
U1 0
U2 4
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD JAN 19
PY 2011
VL 83
IS 2
AR 024504
DI 10.1103/PhysRevB.83.024504
PG 6
WC Physics, Condensed Matter
SC Physics
GA 713OU
UT WOS:000286748100005
ER
PT J
AU Lyubina, J
Kuz'min, MD
Nenkov, K
Gutfleisch, O
Richter, M
Schlagel, DL
Lograsso, TA
Gschneidner, KA
AF Lyubina, Julia
Kuz'min, Michael D.
Nenkov, Konstantin
Gutfleisch, Oliver
Richter, Manuel
Schlagel, Devo L.
Lograsso, Thomas A.
Gschneidner, Karl A., Jr.
TI Magnetic field dependence of the maximum magnetic entropy change
SO PHYSICAL REVIEW B
LA English
DT Article
ID 2ND-ORDER PHASE-TRANSITION
AB The maximum isothermal entropy change in a magnetic refrigerant with a second-order phase transition is shown to depend on applied magnetic field H as follows: (-Delta S)(max) = A(H + H-0)(2/3)-AH(0)(2/3) + BH4/3. Here A and B are intrinsic parameters of the cooling material and H-0 is an extrinsic parameter determined by the purity and homogeneity of the sample. This theoretical prediction is confirmed by measurements on variously pure poly- and single-crystalline samples of Gd. The Curie point of pure Gd is found to be 295(1) K; however, the maximum of -Delta S-M is attained at a lower temperature: The higher the quality of the sample, the closer the peak position to 295 K. Further tests are reported for a series of melt-spun LaFe13-xSix alloys. These are found to follow the same field dependence, despite the fact that for certain compositions (x < 1.8) they experience a phase transition of first, rather than second, order.
C1 [Lyubina, Julia; Kuz'min, Michael D.; Nenkov, Konstantin; Gutfleisch, Oliver; Richter, Manuel] IFW Dresden, D-01171 Dresden, Germany.
[Lyubina, Julia] Univ London Imperial Coll Sci Technol & Med, Dept Mat, London SW7 2AZ, England.
[Schlagel, Devo L.; Lograsso, Thomas A.; Gschneidner, Karl A., Jr.] Iowa State Univ, Ames Lab, US Dept Energy, Ames, IA 50011 USA.
[Gschneidner, Karl A., Jr.] Iowa State Univ, Dept Mat Sci & Engn, Ames, IA 50011 USA.
RP Lyubina, J (reprint author), IFW Dresden, POB 270016, D-01171 Dresden, Germany.
EM y.lyubina@imperial.ac.uk
RI Gutfleisch, Oliver/C-7241-2011; Richter, Manuel/F-2485-2016
OI Gutfleisch, Oliver/0000-0001-8021-3839; Richter,
Manuel/0000-0002-9999-8290
FU European Community
FX J.L. acknowledges financial support by a Marie Curie Intra European
Fellowship within the 7th European Community Framework Programme.
NR 18
TC 41
Z9 41
U1 2
U2 20
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD JAN 19
PY 2011
VL 83
IS 1
AR 012403
DI 10.1103/PhysRevB.83.012403
PG 4
WC Physics, Condensed Matter
SC Physics
GA 713LZ
UT WOS:000286740800001
ER
PT J
AU Wei, FY
Lv, B
Chen, F
Xue, YY
Chu, CW
AF Wei, F. Y.
Lv, B.
Chen, F.
Xue, Y. Y.
Chu, C. W.
TI Carrier contribution to the specific heat coefficient of Sr1-xKxFe2As2
SO PHYSICAL REVIEW B
LA English
DT Article
AB The carrier contribution to the specific heat coefficient, C-e/T, of Sr1-xKxFe2As2 with 0 <= x <= 1 has been determined. The C-e/T at the optimal doping level appears to be T-independent above the superconducting transition temperature T-c. Systematic reductions and increases with cooling below 100 K, on the other hand, characterize the underdoped and overdoped samples, respectively. As the result, the low-T limit of the normal-state C-e/T increases almost linearly with x by a factor of 3 over 0 <= x <= 1. However, the C-e/T suppression across the magnetostructure transition of the underdoped samples is actually negligibly small. In particular, the extracted gamma(H)-gamma(L) at x = 0, which should include all suppression effects, is comparable to or even smaller than that of x = 0.15, where gamma(H) and gamma(L) are the high- and low-T limits of the normal-state C-e/T. Therefore, it appears that, while the magnetostructure transition still plays a role, it may not be the main factor behind the C-e/T evolution.
C1 [Wei, F. Y.; Lv, B.; Chen, F.; Xue, Y. Y.; Chu, C. W.] Univ Houston, Dept Phys, Houston, TX 77204 USA.
[Wei, F. Y.; Lv, B.; Chen, F.; Xue, Y. Y.; Chu, C. W.] Univ Houston, TCSUH, Houston, TX 77204 USA.
[Chu, C. W.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
RP Wei, FY (reprint author), Univ Houston, Dept Phys, Houston, TX 77204 USA.
RI Lv, Bing/E-3485-2010
FU US Air Force Office of Scientific Research; T. L. L. Temple Foundation;
John J. and Rebecca Moores Endowment; State of Texas through the Texas
Center for Superconductivity at the University of Houston; Office of
Science, Office of Basic Energy Sciences, Division of Materials Sciences
and Engineering of the US Department of Energy [DE-AC03-76SF00098]
FX The work in Houston is supported in part by the US Air Force Office of
Scientific Research, the T. L. L. Temple Foundation, the John J. and
Rebecca Moores Endowment, and the State of Texas through the Texas
Center for Superconductivity at the University of Houston; and the work
at the Lawrence Berkeley National Laboratory is supported by the Office
of Science, Office of Basic Energy Sciences, Division of Materials
Sciences and Engineering of the US Department of Energy under Contract
No. DE-AC03-76SF00098.
NR 25
TC 2
Z9 2
U1 0
U2 6
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD JAN 19
PY 2011
VL 83
IS 2
AR 024503
DI 10.1103/PhysRevB.83.024503
PG 5
WC Physics, Condensed Matter
SC Physics
GA 713OU
UT WOS:000286748100004
ER
PT J
AU Yang, F
Kemik, N
Scholl, A
Doran, A
Young, AT
Biegalski, MD
Christen, HM
Takamura, Y
AF Yang, Fan
Kemik, Nihan
Scholl, Andreas
Doran, Andrew
Young, Anthony T.
Biegalski, Michael D.
Christen, Hans M.
Takamura, Yayoi
TI Correlated domain structure in perovskite oxide superlattices exhibiting
spin-flop coupling
SO PHYSICAL REVIEW B
LA English
DT Article
ID THIN-FILMS; COLOSSAL MAGNETORESISTANCE; MAGNETIC-PROPERTIES; INTERFACES;
MOMENTS
AB We synthesized epitaxial perovskite oxide superlattices consisting of alternating ferromagnetic and antiferromagnetic sublayerswith a six-unit-cell sublayer thickness. This sublayer thickness corresponds to the maximum in interfacial spin-flop coupling for this system. Soft x-ray photoemission electron microscopy was used to observe the temperature dependence of the correlation between the ferromagnetic and antiferromagnetic domain structure in each sublayer. We confirm the local perpendicular alignment between the ferromagnetic and antiferromagnet moments and find that the strength of the spin-flop coupling dominates over the pinning effect of the structural domains that typically define the location of the antiferromagnetic domains.
C1 [Yang, Fan; Kemik, Nihan; Takamura, Yayoi] Univ Calif Davis, Dept Chem Engn & Mat Sci, Davis, CA 95616 USA.
[Scholl, Andreas; Doran, Andrew; Young, Anthony T.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
[Biegalski, Michael D.; Christen, Hans M.] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA.
RP Yang, F (reprint author), Univ Calif Davis, Dept Chem Engn & Mat Sci, Davis, CA 95616 USA.
EM ytakamura@ucdavis.edu
RI Christen, Hans/H-6551-2013; Scholl, Andreas/K-4876-2012;
OI Christen, Hans/0000-0001-8187-7469; Doran, Andrew/0000-0001-5158-4569
FU Division of Scientific User Facilities, Office of Basic Energy Sciences,
US Department of Energy; UC Davis; National Science Foundation [DMR
0747896]
FX The authors thank A. Mehta and M. Bibee (SSRL) for assistance with
acquiring the XRD data. Research at the ALS, CNMS, and SSRL is supported
by the Division of Scientific User Facilities, Office of Basic Energy
Sciences, US Department of Energy. Research at UC Davis is supported by
UC Davis startup funds and the National Science Foundation Contract No.
DMR 0747896.
NR 21
TC 8
Z9 8
U1 0
U2 15
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD JAN 19
PY 2011
VL 83
IS 1
AR 014417
DI 10.1103/PhysRevB.83.014417
PG 5
WC Physics, Condensed Matter
SC Physics
GA 713LZ
UT WOS:000286740800002
ER
PT J
AU Detrixhe, M
Besson, D
Gorham, PW
Allison, P
Baughmann, B
Beatty, JJ
Belov, K
Bevan, S
Binns, WR
Chen, C
Chen, P
Clem, JM
Connolly, A
De Marco, D
Dowkontt, PF
DuVernois, MA
Frankenfeld, C
Grashorn, EW
Hogan, DP
Griffith, N
Hill, B
Hoover, S
Israel, MH
Javaid, A
Liewer, KM
Matsuno, S
Mercurio, BC
Miki, C
Mottram, M
Nam, J
Nichol, RJ
Palladino, K
Romero-Wolf, A
Ruckman, L
Saltzberg, D
Seckel, D
Varner, GS
Vieregg, AG
Wang, Y
AF Detrixhe, M.
Besson, D.
Gorham, P. W.
Allison, P.
Baughmann, B.
Beatty, J. J.
Belov, K.
Bevan, S.
Binns, W. R.
Chen, C.
Chen, P.
Clem, J. M.
Connolly, A.
De Marco, D.
Dowkontt, P. F.
DuVernois, M. A.
Frankenfeld, C.
Grashorn, E. W.
Hogan, D. P.
Griffith, N.
Hill, B.
Hoover, S.
Israel, M. H.
Javaid, A.
Liewer, K. M.
Matsuno, S.
Mercurio, B. C.
Miki, C.
Mottram, M.
Nam, J.
Nichol, R. J.
Palladino, K.
Romero-Wolf, A.
Ruckman, L.
Saltzberg, D.
Seckel, D.
Varner, G. S.
Vieregg, A. G.
Wang, Y.
CA ANITA Collaboration
TI Ultrarelativistic magnetic monopole search with the ANITA-II
balloon-borne radio interferometer
SO PHYSICAL REVIEW D
LA English
DT Article
ID DETECTOR; FLUX
AB We have conducted a search for extended energy deposition trails left by ultrarelativistic magnetic monopoles interacting in Antarctic ice. The nonobservation of any satisfactory candidates in the 31 days of accumulated ANITA-II (Antarctic Impulsive Transient Antenna) flight data results in an upper limit on the diffuse flux of relativistic monopoles. We obtain a 90% C.L. limit of order 10(-19) (cm(2) s sr)(-1) for values of Lorentz factor, gamma, 10(10) <= at the anticipated energy E(tot) = 10(16) GeV. This bound is stronger than all previously published experimental limits for this kinematic range.
C1 [Detrixhe, M.; Besson, D.; Frankenfeld, C.; Hogan, D. P.] Univ Kansas, Dept Phys & Astron, Lawrence, KS 66045 USA.
[Gorham, P. W.; Allison, P.; DuVernois, M. A.; Hill, B.; Matsuno, S.; Miki, C.; Romero-Wolf, A.; Ruckman, L.; Varner, G. S.; Wang, Y.] Univ Hawaii, Dept Phys & Astron, Manoa, HI 96822 USA.
[Wang, Y.] Stanford Linear Accelerator Ctr, Menlo Pk, CA 94025 USA.
[Baughmann, B.; Beatty, J. J.; Grashorn, E. W.; Griffith, N.; Mercurio, B. C.; Palladino, K.] Ohio State Univ, Dept Phys, Columbus, OH 43210 USA.
[Binns, W. R.; Dowkontt, P. F.; Israel, M. H.] Washington Univ, Dept Phys, St Louis, MO 63130 USA.
[Chen, C.; Chen, P.] Natl Taiwan Univ, Dept Phys, Taipei, Taiwan.
[Clem, J. M.; De Marco, D.; Javaid, A.; Seckel, D.] Univ Delaware, Dept Phys, Newark, DE 19716 USA.
[Bevan, S.; Connolly, A.; Mottram, M.; Nichol, R. J.] UCL, Dept Phys, London, England.
[Belov, K.; Hoover, S.; Saltzberg, D.; Vieregg, A. G.] Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA.
[Liewer, K. M.] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA.
[Nam, J.] Ewha Womans Univ, Seoul, South Korea.
RP Detrixhe, M (reprint author), Univ Kansas, Dept Phys & Astron, Lawrence, KS 66045 USA.
RI Nichol, Ryan/C-1645-2008; Vieregg, Abigail/D-2287-2012; Belov,
Konstantin/D-2520-2013; Connolly, Amy/J-3958-2013; Beatty,
James/D-9310-2011
OI Beatty, James/0000-0003-0481-4952
NR 34
TC 14
Z9 14
U1 0
U2 3
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1550-7998
J9 PHYS REV D
JI Phys. Rev. D
PD JAN 19
PY 2011
VL 83
IS 2
AR 023513
DI 10.1103/PhysRevD.83.023513
PG 11
WC Astronomy & Astrophysics; Physics, Particles & Fields
SC Astronomy & Astrophysics; Physics
GA 714IO
UT WOS:000286803300006
ER
PT J
AU Levchenko, A
Ristivojevic, Z
Micklitz, T
AF Levchenko, Alex
Ristivojevic, Zoran
Micklitz, Tobias
TI Interaction-induced corrections to conductance and thermopower in
quantum wires
SO PHYSICAL REVIEW B
LA English
DT Article
ID LUTTINGER LIQUIDS
AB We study transport properties of weakly interacting spinless electrons in one-dimensional single-channel quantum wires. The effects of interaction manifest as three-particle collisions due to the severe constraints imposed by the conservation laws on the two-body processes. We focus on short wires where the effects of equilibration on the distribution function can be neglected and the collision integral can be treated in perturbation theory. We find that interaction-induced corrections to conductance and thermopower rely on the scattering processes that change the number of right-and left-moving electrons. The latter requires transition at the bottom of the band which is exponentially suppressed at low temperatures. Our theory is based on the scattering approach that is beyond the Luttinger-liquid limit. We emphasize the crucial role of the exchange terms in the three-particle scattering amplitude that was not discussed in previous studies.
C1 [Levchenko, Alex; Ristivojevic, Zoran] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA.
[Ristivojevic, Zoran] Ecole Normale Super, CNRS, Lab Phys Theor, F-75005 Paris, France.
[Micklitz, Tobias] Free Univ Berlin, Dahlem Ctr Complex Quantum Syst, D-14195 Berlin, Germany.
[Micklitz, Tobias] Free Univ Berlin, Inst Theoret Phys, D-14195 Berlin, Germany.
RP Levchenko, A (reprint author), Argonne Natl Lab, Div Mat Sci, 9700 S Cass Ave, Argonne, IL 60439 USA.
FU US DOE, Office of Science [DE-AC02-06CH11357]
FX We are sincerely grateful to K. A. Matveev for numerous discussions that
motivated this project. We would like to acknowledge also useful
discussions with L. Glazman and A. Kamenev. This work at ANL was
supported by the US DOE, Office of Science, under Contract No.
DE-AC02-06CH11357.
NR 17
TC 11
Z9 11
U1 1
U2 4
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD JAN 19
PY 2011
VL 83
IS 4
AR 041303
DI 10.1103/PhysRevB.83.041303
PG 4
WC Physics, Condensed Matter
SC Physics
GA 713XH
UT WOS:000286770200003
ER
PT J
AU Chen, HL
Wu, LJ
Zhang, LH
Zhu, YM
Grey, CP
AF Chen, Hailong
Wu, Lijun
Zhang, Lihua
Zhu, Yimei
Grey, Clare P.
TI LiCoO2 Concaved Cuboctahedrons from Symmetry-Controlled Topological
Reactions
SO JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Article
ID NANOCRYSTALS; LIXCOO2; GROWTH; TRANSITION; STABILITY; CRYSTALS; EXCHANGE
AB Morphology control of functional materials is generally performed by controlling the growth rates on selected orientations or faces. Here, we control particle morphology by "crystal templating": by choosing appropriate precursor crystals and reaction conditions, we demonstrate that a material with rhombohedral symmetry-namely the layered, positive electrode material, LiCoO2-can grow to form a quadruple-twinned crystal with overall cubic symmetry. The twinned crystals show an unusual, concaved-cuboctahedron morphology, with uniform particle sizes of 0.5-2 mu m. On the basis of a range of synthetic and analytical experiments, including solid-state NMR, X-ray powder diffraction analysis and HRTEM, we propose that these twinned crystals form via selective dissolution and an ion-exchange reaction accompanied by oxidation of a parent crystal of CoO, a material with cubic symmetry. This template crystal serves to nucleate the growth of four LiCoO2 twin crystals and to convert a highly anisotropic, layered material into a pseudo-3-dimensional, isotropic material.
C1 [Chen, Hailong; Grey, Clare P.] SUNY Stony Brook, Dept Chem, Stony Brook, NY 11794 USA.
[Wu, Lijun; Zhang, Lihua; Zhu, Yimei] Brookhaven Natl Lab, Upton, NY 11973 USA.
[Grey, Clare P.] Univ Cambridge, Dept Chem, Cambridge CB2 1EW, England.
RP Grey, CP (reprint author), SUNY Stony Brook, Dept Chem, Stony Brook, NY 11794 USA.
EM cpg27@cam.ac.uk
RI Chen, Hailong/B-3998-2011; Chen, Hailong/F-7954-2011; Zhang,
Lihua/F-4502-2014
OI Chen, Hailong/0000-0001-8283-2860;
FU Assistant Secretary for Energy Efficiency and Renewable Energy, Office
of FreedomCAR; U.S. DOE [DE-AC03-76SF00098, 6517749, DE-AC02-98CH10886];
Lawrence Berkeley National Laboratory
FX We thank James Quinn, George Hart, and Dong Su for help with the
electron microscopy data collection and mathematical modeling, Peter
Stephens for synchrotron XRD, and Yuanzhi Tang for DCP analysis. This
work was supported by the Assistant Secretary for Energy Efficiency and
Renewable Energy, Office of FreedomCAR and Vehicle Technologies of the
U.S. DOE under Contract No. DE-AC03-76SF00098 via Subcontract No.
6517749 with the Lawrence Berkeley National Laboratory. Research carried
out at Brookhaven National Laboratory was supported by the U.S. DOE
under Contract No. DE-AC02-98CH10886.
NR 25
TC 14
Z9 14
U1 3
U2 38
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0002-7863
J9 J AM CHEM SOC
JI J. Am. Chem. Soc.
PD JAN 19
PY 2011
VL 133
IS 2
BP 262
EP 270
DI 10.1021/ja104852q
PG 9
WC Chemistry, Multidisciplinary
SC Chemistry
GA 710VK
UT WOS:000286544900020
PM 21142186
ER
PT J
AU Fritsch, S
Ivanov, I
Wang, HL
Cheng, XL
AF Fritsch, Sebastian
Ivanov, Ivaylo
Wang, Hailong
Cheng, Xiaolin
TI Ion Selectivity Mechanism in a Bacterial Pentameric Ligand-Gated Ion
Channel
SO BIOPHYSICAL JOURNAL
LA English
DT Article
ID NICOTINIC ACETYLCHOLINE-RECEPTOR; CYS-LOOP RECEPTOR; X-RAY-STRUCTURE;
MOLECULAR-DYNAMICS; BROWNIAN DYNAMICS; GATING MECHANISM; PORE;
CONDUCTANCE; FAMILY; ELECTROSTATICS
AB The proton-gated ion channel from Gloeobacter violaceus (GLIC) is a prokaryotic homolog of the eukaryotic nicotinic acetylcholine receptor that responds to the binding of neurotransmitter acetylcholine and mediates fast signal transmission. Recent emergence of a high-resolution crystal structure of GLIC captured in a potentially open state allowed detailed, atomic-level insight into ion conduction and selectivity mechanisms in these channels. Herein, we have examined the barriers to ion conduction and origins of ion selectivity in the GLIC channel by the construction of potential-of-mean-force profiles for sodium and chloride ions inside the transmembrane region. Our calculations reveal that the GLIC channel is open for a sodium ion to transport, but presents a similar to 11 kcal/mol free energy barrier for a chloride ion. Our collective findings identify three distinct contributions to the observed preference for the permeant ions. First, there is a substantial contribution due to a ring of negatively charged glutamate residues (E-2') at the narrow intracellular end of the channel. The negative electrostatics of this region and the ability of the glutamate side chains to directly bind cations would strongly favor the passage of sodium ions while hindering translocation of chloride ions. Second, our results imply a significant hydrophobic contribution to selectivity linked to differences in the desolvation penalty for the sodium versus chloride ions in the central hydrophobic region of the pore. This hydrophobic contribution is evidenced by the large free energy barriers experienced by Cl- in the middle of the pore for both GLIC and the E-2'A mutant. Finally, there is a distinct contribution arising from the overall negative electrostatics of the channel.
C1 [Fritsch, Sebastian; Cheng, Xiaolin] Oak Ridge Natl Lab, UT ORNL Ctr Mol Biophys, Oak Ridge, TN 37831 USA.
[Fritsch, Sebastian] Heidelberg Univ, Interdisciplinary Ctr Sci Comp, Heidelberg, Germany.
[Ivanov, Ivaylo] Georgia State Univ, Dept Chem, Atlanta, GA 30303 USA.
[Wang, Hailong] Mayo Clin, Coll Med, Receptor Biol Lab, Dept Physiol, Rochester, MN USA.
[Wang, Hailong] Mayo Clin, Coll Med, Receptor Biol Lab, Dept Biomed Engn & Neurol, Rochester, MN USA.
[Cheng, Xiaolin] Univ Tennessee, Dept Biochem & Cellular & Mol Biol, Knoxville, TN USA.
RP Cheng, XL (reprint author), Oak Ridge Natl Lab, UT ORNL Ctr Mol Biophys, Oak Ridge, TN 37831 USA.
EM chengx@ornl.gov
RI Ivanov, Ivaylo/A-7613-2013
OI Ivanov, Ivaylo/0000-0002-5306-1005
FU Office of Biological and Environmental Research; U.S. Department of
Energy [FWP ERKJE84]; Office of Science of the U.S. Department of
Energy; Georgia State University
FX This research is funded by the Genomic Science Research Program, Office
of Biological and Environmental Research, and the Scientific Discovery
Through Advanced Computing program, U.S. Department of Energy, currently
under grant No. FWP ERKJE84. This research used the resources of the
National Center for Computational Sciences at Oak Ridge National
Laboratory, which is supported by a DOE INCITE award from the Office of
Science of the U.S. Department of Energy. I.I. is supported by Georgia
State University Research Fund.
NR 43
TC 11
Z9 12
U1 2
U2 7
PU CELL PRESS
PI CAMBRIDGE
PA 600 TECHNOLOGY SQUARE, 5TH FLOOR, CAMBRIDGE, MA 02139 USA
SN 0006-3495
EI 1542-0086
J9 BIOPHYS J
JI Biophys. J.
PD JAN 19
PY 2011
VL 100
IS 2
BP 390
EP 398
DI 10.1016/j.bpj.2010.11.077
PG 9
WC Biophysics
SC Biophysics
GA 710UX
UT WOS:000286543600016
PM 21244835
ER
PT J
AU Zhang, GP
Fang, XW
Yao, YX
Wang, CZ
Ding, ZJ
Ho, KM
AF Zhang, G. P.
Fang, X. W.
Yao, Y. X.
Wang, C. Z.
Ding, Z. J.
Ho, K. M.
TI Electronic structure and transport of a carbon chain between graphene
nanoribbon leads
SO JOURNAL OF PHYSICS-CONDENSED MATTER
LA English
DT Article
ID MINIMAL BASIS-SETS; PHASE; GAS
AB The electronic structure and transport property of a carbon chain between two graphene nanoribbon leads are studied using an ab initio tight-binding (TB) model and Landauer's formalism combined with a non-equilibrium Green's function. The TB Hamiltonian and overlap matrices are extracted from first-principles density functional calculations through the quasi-atomic minimal basis orbital scheme. The accuracy of the TB model is demonstrated by comparing the electronic structure from the TB model with that from first-principles density functional theory. The results of electronic transport on a carbon atomic chain connected to armchair and zigzag graphene ribbon leads, such as different transport characters near the Fermi level and at most one quantized conductance, reveal the effect of the electronic structure of the leads and the scattering from the atomic chain. In addition, bond length alternation and an interesting transmission resonance are observed in the atomic chain connected to zigzag graphene ribbon leads. Our approach provides a promising route to quantitative investigation of both the electronic structure and transport property of large systems.
C1 [Zhang, G. P.; Fang, X. W.; Yao, Y. X.; Wang, C. Z.; Ho, K. M.] Iowa State Univ, Ames Lab US DOE, Ames, IA 50011 USA.
[Zhang, G. P.; Fang, X. W.; Yao, Y. X.; Wang, C. Z.; Ho, K. M.] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA.
[Zhang, G. P.] Renmin Univ China, Dept Phys, Beijing 100872, Peoples R China.
[Fang, X. W.; Ding, Z. J.] Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Anhua 230026, Peoples R China.
[Fang, X. W.; Ding, Z. J.] Univ Sci & Technol China, Dept Phys, Anhua 230026, Peoples R China.
RP Zhang, GP (reprint author), Iowa State Univ, Ames Lab US DOE, Ames, IA 50011 USA.
EM wangcz@ameslab.gov
RI Zhang, Guiping/F-4390-2011; Yao, Yongxin/B-7320-2008; 石, 源/D-5929-2012;
ruc, phy/E-4170-2012
OI Zhang, Guiping/0000-0001-8697-5711;
FU US Department of Energy, Basic Energy Sciences; National Energy Research
Supercomputing Center (NERSC) in Berkeley [DE-AC02-07CH11358]; China
Scholarship Council [2008634035]; National Natural Science Foundation of
China [10874160, 11074232]; '111' project
FX Work at Ames Laboratory was supported by the US Department of Energy,
Basic Energy Sciences, including a grant of computer time at the
National Energy Research Supercomputing Center (NERSC) in Berkeley,
under contract no. DE-AC02-07CH11358. X W Fang acknowledges support from
the China Scholarship Council for the Postgraduate Scholarship Program
(file no. 2008634035) and Z J Ding acknowledges the National Natural
Science Foundation of China (grants nos 10874160 and 11074232) and '111'
project.
NR 35
TC 21
Z9 21
U1 1
U2 24
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 0953-8984
J9 J PHYS-CONDENS MAT
JI J. Phys.-Condes. Matter
PD JAN 19
PY 2011
VL 23
IS 2
AR 025302
DI 10.1088/0953-8984/23/2/025302
PG 5
WC Physics, Condensed Matter
SC Physics
GA 703TP
UT WOS:000286004500001
PM 21406839
ER
PT J
AU Moyer, JA
Vaz, CAF
Negusse, E
Arena, DA
Henrich, VE
AF Moyer, J. A.
Vaz, C. A. F.
Negusse, E.
Arena, D. A.
Henrich, V. E.
TI Controlling the electronic structure of Co1-xFe2+xO4 thin films through
iron doping
SO PHYSICAL REVIEW B
LA English
DT Article
ID X-RAY-ABSORPTION; TRANSITION-METAL COMPOUNDS; ELECTRICAL SPIN INJECTION;
MAGNETIC-ANISOTROPY; COBALT FERRITE; VERWEY TRANSITION; SUBSTITUTED
MAGNETITE; FE3O4; ORIGIN; DICHROISM
AB The electronic, magnetic and transport properties of iron-doped cobalt ferrite (Co1-xFe2+xO4) thin films grown epitaxially on MgO (001) substrates are investigated by soft x-ray absorption and photoelectron spectroscopy, ultraviolet photoelectron spectroscopy, superconducting quantum interference device magnetometry, and resistivity measurements. The crystal structure for Co1-xFe2+xO4 is determined to be nearly inverse spinel, with the degree of inversion increasing for increased doping until it becomes fully inverse spinel for Fe3O4. The doped iron cations have a valency of 2+ and reside solely on octahedral sites, which allows for conduction owing to hopping between Fe2+ and Fe3+ octahedral cations. The addition of Fe2+ cations increases the electron density of states near the Fermi energy, shifting the Fermi level from 0.75 to 0 eV with respect to the top of the valence band, as the doping increases from x = 0.01 to 1. This change in electronic structure results in a change in resistivity by over two orders of magnitude. In contrast, the magnetic properties of CoFe2O4 thin films, characterized by a significantly reduced saturation magnetization compared to the bulk and large magnetic anisotropies, are affected less significantly by doping in the range from 0 to 0.63. These results show that Co1-xFe2+xO4 has tunable electronic properties while maintaining magnetic properties similar to CoFe2O4.
C1 [Moyer, J. A.; Vaz, C. A. F.; Henrich, V. E.] Yale Univ, Dept Appl Phys, New Haven, CT 06511 USA.
[Moyer, J. A.; Vaz, C. A. F.; Henrich, V. E.] Yale Univ, Ctr Res Interface Struct & Phenomena, New Haven, CT 06511 USA.
[Negusse, E.] Montana State Univ, Dept Phys, Bozeman, MT 59717 USA.
[Arena, D. A.] Brookhaven Natl Lab, Natl Synchrotron Light Source, Upton, NY 11973 USA.
RP Moyer, JA (reprint author), Yale Univ, Dept Appl Phys, New Haven, CT 06511 USA.
RI Vaz, Carlos/A-7240-2012; Dom, Rekha/B-7113-2012
OI Vaz, Carlos/0000-0002-6209-8918;
FU NSF [MRSEC DMR 0520495]; Army Research Office [W911NF-08-1-0325]; DOE
[DE-08NT0004115]; U.S. Department of Energy, Office of Science, Office
of Basic Energy Sciences [DE-AC02-98CH10886]
FX The authors acknowledge Jason Hoffman for his help with the transport
measurements and financial support by the NSF through Grant No. MRSEC
DMR 0520495 (CRISP). One of us (E.N.) acknowledges the support of the
Army Research Office under Grant No. W911NF-08-1-0325 and DOE under
Grant No. DE-08NT0004115. Use of the National Synchrotron Light Source,
Brookhaven National Laboratory, was supported by the U.S. Department of
Energy, Office of Science, Office of Basic Energy Sciences, under
Contract No. DE-AC02-98CH10886.
NR 66
TC 38
Z9 39
U1 1
U2 36
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 2469-9950
EI 2469-9969
J9 PHYS REV B
JI Phys. Rev. B
PD JAN 19
PY 2011
VL 83
IS 3
AR 035121
DI 10.1103/PhysRevB.83.035121
PG 10
WC Physics, Condensed Matter
SC Physics
GA 713WP
UT WOS:000286768400007
ER
PT J
AU Stewart, JR
Ehlers, G
Mutka, H
Fouquet, P
Payen, C
Lortz, R
AF Stewart, J. R.
Ehlers, G.
Mutka, H.
Fouquet, P.
Payen, C.
Lortz, R.
TI Spin dynamics, short-range order, and spin freezing in Y0.5Ca0.5BaCo4O7
SO PHYSICAL REVIEW B
LA English
DT Article
ID NEUTRON POLARIZATION ANALYSIS; KAGOME ANTIFERROMAGNET; MAGNETIC
FRUSTRATION; LATTICE; TEMPERATURE; SCATTERING; GLASS; YBACO4O7+DELTA;
SPECTROSCOPY; SRCR8GA4O19
AB Y0.5Ca0.5BaCo4O7 was recently introduced as a possible candidate for capturing some of the predicted classical spin kagome ground-state features. Stimulated by this conjecture, we have taken up a more complete study of the spin correlations in this compound with neutron scattering methods on a powder sample characterized with high-resolution neutron diffraction and the temperature dependence of magnetic susceptibility and specific heat. We have found that the frustrated near-neighbor magnetic correlations involve not only the kagome planes but concern the full Co sublattice, as evidenced by the analysis of the wave-vector dependence of the short-range order. We conclude from our results that themagnetic moments are located on the Co sublattice as a whole and that correlations extend beyond the two-dimensional kagome planes. We identify intriguing dynamical properties, observing high-frequency fluctuations with a Lorentzian linewidth Gamma <= 20 meV at ambient temperature. On cooling a low-frequency (similar to 1 meV) dynamical component develops alongside the high-frequency fluctuations, which eventually becomes static at temperatures below T approximate to 50 K. The high-frequency response with an overall linewidth of similar to 10 meV prevails at T <= 2 K, coincident with a fully elastic short-range-ordered contribution.
C1 [Stewart, J. R.] Rutherford Appleton Lab, ISIS Facil, Didcot OX11 0QX, Oxon, England.
[Ehlers, G.] Oak Ridge Natl Lab, Neutron Scattering Sci Div, Oak Ridge, TN 37831 USA.
[Mutka, H.; Fouquet, P.] Inst Max Von Laue Paul Langevin, F-38042 Grenoble 9, France.
[Payen, C.] Univ Nantes, Inst Mat Jean Rouxel IMN, CNRS, F-44322 Nantes 3, France.
[Lortz, R.] Univ Geneva, Dept Condensed Matter Phys, CH-1211 Geneva 4, Switzerland.
[Lortz, R.] Hong Kong Univ Sci & Technol, Kowloon, Hong Kong, Peoples R China.
RP Stewart, JR (reprint author), Rutherford Appleton Lab, ISIS Facil, Didcot OX11 0QX, Oxon, England.
EM ross.stewart@stfc.ac.uk
RI Stewart, Ross/C-4194-2008; Fouquet, Peter/B-5212-2008; Ehlers,
Georg/B-5412-2008;
OI Stewart, Ross/0000-0003-0053-0178; Fouquet, Peter/0000-0002-5542-0059;
Ehlers, Georg/0000-0003-3513-508X; Lortz, Rolf/0000-0002-4075-9375
FU Scientific User Facilities Division, Office of Basic Energy Sciences, US
Department of Energy
FX The authors acknowledge helpful discussions with B. Canals, J. Robert,
W. Schweika, and, in particular, L. Chapon. The authors are grateful for
the local support staff at the ILL. J. R. S. thanks K. Knight for help
with the neutron diffraction measurements. C. P. thanks C. Reibel
(Institut Charles Gerhardt, Montpellier, France) and J. Le Bideau for
help with the specific-heat measurements. Research at Oak Ridge National
Laboratory's Spallation Neutron Source was sponsored by the Scientific
User Facilities Division, Office of Basic Energy Sciences, US Department
of Energy.
NR 58
TC 14
Z9 14
U1 0
U2 22
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
EI 1550-235X
J9 PHYS REV B
JI Phys. Rev. B
PD JAN 19
PY 2011
VL 83
IS 2
AR 024405
DI 10.1103/PhysRevB.83.024405
PG 12
WC Physics, Condensed Matter
SC Physics
GA 713OU
UT WOS:000286748100003
ER
PT J
AU Calabrese, E
de Putter, R
Huterer, D
Linder, EV
Melchiorri, A
AF Calabrese, Erminia
de Putter, Roland
Huterer, Dragan
Linder, Eric V.
Melchiorri, Alessandro
TI Future CMB constraints on early, cold, or stressed dark energy
SO PHYSICAL REVIEW D
LA English
DT Article
ID MICROWAVE BACKGROUND ANISOTROPIES; COSMOLOGICAL CONSTANT; POWER
SPECTRUM; COMPILATION; SUPERNOVAE; UNIVERSE; MODELS; MATTER
AB We investigate future constraints on early dark energy (EDE) achievable by the Planck and CMBPol experiments, including cosmic microwave background (CMB) lensing. For the dark energy, we include the possibility of clustering through a sound speed c(s)(2) < 1 (cold dark energy) and anisotropic stresses parametrized with a viscosity parameter c(vis)(2). We discuss the degeneracies between cosmological parameters and EDE parameters. In particular we show that the presence of anisotropic stresses in EDE models can substantially undermine the determination of the EDE sound speed parameter c(s)(2). The constraints on EDE primordial energy density are however unaffected. We also calculate the future CMB constraints on neutrino masses and find that they are weakened by a factor of 2 when allowing for the presence of EDE, and highly biased if it is incorrectly ignored.
C1 [Calabrese, Erminia; Melchiorri, Alessandro] Univ Roma La Sapienza, Dept Phys, I-00185 Rome, Italy.
[Calabrese, Erminia; Melchiorri, Alessandro] Univ Roma La Sapienza, Ist Nazl Fis Nucl, I-00185 Rome, Italy.
[de Putter, Roland] Univ Valencia, CSIC, IFIC, Valencia, Spain.
[de Putter, Roland] Inst Ciencies Cosmos, Barcelona, Spain.
[de Putter, Roland; Linder, Eric V.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
[Huterer, Dragan] Univ Michigan, Dept Phys, Ann Arbor, MI 48109 USA.
[Linder, Eric V.] Ewha Womans Univ, Inst Early Universe, Seoul, South Korea.
RP Calabrese, E (reprint author), Univ Roma La Sapienza, Dept Phys, Ple Aldo Moro 2, I-00185 Rome, Italy.
OI Melchiorri, Alessandro/0000-0001-5326-6003
FU DOE [DE-FG02-95ER40899]; NSF [AST-0807564]; NASA [NNX09AC89G]; World
Class University through National Research Foundation, Ministry of
Education, Science and Technology of Korea [R32-2009-000-10130-0];
Office of Science, Office of High Energy Physics, of the U.S. Department
of Energy [DE-AC02-05CH11231]
FX D.H. is supported by the DOE OJI grant under Contract No.
DE-FG02-95ER40899, the NSF under Contract No. AST-0807564, and NASA
under Contract No. NNX09AC89G. E. L. has been supported in part by the
World Class University Grant No. R32-2009-000-10130-0 through the
National Research Foundation, Ministry of Education, Science and
Technology of Korea. R.d.P. and E. L. have been supported in part by the
Director, Office of Science, Office of High Energy Physics, of the U.S.
Department of Energy under Contract No. DE-AC02-05CH11231. D. H. and E.
L. would like to thank the Centro de Ciencias de Benasque "Pedro
Pascual'' for hospitality.
NR 48
TC 46
Z9 46
U1 0
U2 0
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 2470-0010
EI 2470-0029
J9 PHYS REV D
JI Phys. Rev. D
PD JAN 19
PY 2011
VL 83
IS 2
AR 023011
DI 10.1103/PhysRevD.83.023011
PG 11
WC Astronomy & Astrophysics; Physics, Particles & Fields
SC Astronomy & Astrophysics; Physics
GA 714IO
UT WOS:000286803300002
ER
PT J
AU Creutz, M
AF Creutz, Michael
TI Quark mass dependence of two-flavor QCD
SO PHYSICAL REVIEW D
LA English
DT Article
ID CHIRAL-SYMMETRY; CONSERVATION; FERMIONS
AB I explore the rich phase diagram of two-flavor QCD as a function of the quark masses. The theory involves three parameters, including one that is CP violating. As the masses vary, regions of both first-and second-order transitions are expected. For nondegenerate quarks, nonperturbative effects cease to be universal, leaving individual quark mass ratios with a renormalization scheme dependence. This raises complications in matching lattice results with perturbative schemes and demonstrates the tautology of attacking the strong CP problem via a vanishing up-quark mass.
C1 [Creutz, Michael] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA.
RP Creutz, M (reprint author), Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA.
FU Alexander von Humboldt Foundation; U.S. Department of Energy
[DE-AC02-98CH10886]
FX I am grateful to the Alexander von Humboldt Foundation for supporting
visits to the University of Mainz where part of this study was carried
out. This manuscript has been authored under Contract No.
DE-AC02-98CH10886 with the U.S. Department of Energy.
NR 21
TC 3
Z9 3
U1 0
U2 1
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1550-7998
J9 PHYS REV D
JI Phys. Rev. D
PD JAN 18
PY 2011
VL 83
IS 1
AR 016005
DI 10.1103/PhysRevD.83.016005
PG 7
WC Astronomy & Astrophysics; Physics, Particles & Fields
SC Astronomy & Astrophysics; Physics
GA 713UZ
UT WOS:000286764200005
ER
PT J
AU Bzdak, A
Koch, V
Liao, JF
AF Bzdak, Adam
Koch, Volker
Liao, Jinfeng
TI Azimuthal correlations from transverse momentum conservation and
possible local parity violation
SO PHYSICAL REVIEW C
LA English
DT Article
ID HEAVY-ION COLLISIONS; NUCLEUS-NUCLEUS COLLISIONS; PLUS AU COLLISIONS;
ELLIPTIC FLOW; QCD; INSTANTONS; TEMPERATURE
AB We analytically calculate the contribution of transverse momentum conservation to the azimuthal correlations that have been proposed as signals for possible local strong parity violation and recently have been measured in heavy ion collisions. These corrections are on the order of the inverse of the total final-state particle multiplicity and, thus, are on the same order as the observed signal. The corrections contribute with the same sign to both like-sign and opposite-sign pair correlations. Their dependence on the momentum is in qualitative agreement with the measurements by the solenoidal tracker at the BNL Relativistic Heavy Ion Collider Collaboration, while the pseudorapidity dependence differs from the data.
C1 [Bzdak, Adam; Koch, Volker; Liao, Jinfeng] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Bzdak, Adam] Polish Acad Sci, Inst Nucl Phys, PL-31342 Krakow, Poland.
RP Bzdak, A (reprint author), Lawrence Berkeley Natl Lab, 1 Cyclotron Rd,MS70R0319, Berkeley, CA 94720 USA.
EM ABzdak@lbl.gov; VKoch@lbl.gov; JLiao@lbl.gov
FU Office of Energy Research, Office of High Energy and Nuclear Physics,
Divisions of Nuclear Physics of the US Department of Energy
[DE-AC02-05CH11231]; Polish Ministry of Science and Higher Education
[N202 125437]; Foundation for Polish Science
FX This work was supported, in part, by the Director, Office of Energy
Research, Office of High Energy and Nuclear Physics, Divisions of
Nuclear Physics of the US Department of Energy under Contract No.
DE-AC02-05CH11231 and by the Polish Ministry of Science and Higher
Education Grant No. N202 125437. A. B. also acknowledges support from
the Foundation for Polish Science (KOLUMB program).
NR 52
TC 39
Z9 39
U1 0
U2 1
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0556-2813
J9 PHYS REV C
JI Phys. Rev. C
PD JAN 18
PY 2011
VL 83
IS 1
AR 014905
DI 10.1103/PhysRevC.83.014905
PG 8
WC Physics, Nuclear
SC Physics
GA 713QS
UT WOS:000286753100002
ER
PT J
AU DeLongchamp, DM
Kline, RJ
Fischer, DA
Richter, LJ
Toney, MF
AF DeLongchamp, Dean M.
Kline, R. Joseph
Fischer, Daniel A.
Richter, Lee J.
Toney, Michael F.
TI Molecular Characterization of Organic Electronic Films
SO ADVANCED MATERIALS
LA English
DT Article
ID FIELD-EFFECT TRANSISTORS; ABSORPTION FINE-STRUCTURE; X-RAY-SCATTERING;
SCANNING-TUNNELING-MICROSCOPY; LANGMUIR-BLODGETT MONOLAYERS;
NORMAL-ALKYL CHAINS; H STRETCHING MODES; THIN-FILMS; REGIOREGULAR
POLY(3-HEXYLTHIOPHENE); OPTICAL-CONSTANTS
AB Organic electronics have emerged as a viable competitor to amorphous silicon for the active layer in low-cost electronics. The critical performance of organic electronic materials is closely related to their morphology and molecular packing. Unlike their inorganic counterparts, polymers combine complex repeat unit structure and crystalline disorder. This combination prevents any single technique from being able to uniquely solve the packing arrangement of the molecules. Here, a general methodology for combining multiple, complementary techniques that provide accurate unit cell dimensions and molecular orientation is described. The combination of measurements results in a nearly complete picture of the organic film morphology.
C1 [DeLongchamp, Dean M.; Kline, R. Joseph] Natl Inst Stand & Technol, Div Polymers, Gaithersburg, MD 20899 USA.
[Fischer, Daniel A.] Natl Inst Stand & Technol, Div Ceram, Gaithersburg, MD 20899 USA.
[Richter, Lee J.] Natl Inst Stand & Technol, Surface & Microanal Sci Div, Gaithersburg, MD 20899 USA.
[Toney, Michael F.] Stanford Synchrotron Radiat Lab, Menlo Pk, CA 94025 USA.
RP DeLongchamp, DM (reprint author), Natl Inst Stand & Technol, Div Polymers, Gaithersburg, MD 20899 USA.
EM deand@nist.gov; joe.kline@nist.gov
RI Kline, Regis/B-8557-2008; Sanders, Susan/G-1957-2011; Richter,
Lee/N-7730-2016
OI Richter, Lee/0000-0002-9433-3724
NR 102
TC 102
Z9 102
U1 6
U2 80
PU WILEY-V C H VERLAG GMBH
PI WEINHEIM
PA BOSCHSTRASSE 12, D-69469 WEINHEIM, GERMANY
SN 0935-9648
J9 ADV MATER
JI Adv. Mater.
PD JAN 18
PY 2011
VL 23
IS 3
BP 319
EP 337
DI 10.1002/adma.201001760
PG 19
WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience &
Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied;
Physics, Condensed Matter
SC Chemistry; Science & Technology - Other Topics; Materials Science;
Physics
GA 703LX
UT WOS:000285980500002
PM 20809510
ER
PT J
AU Hussey, RJ
Coates, L
Gill, RS
Erskine, PT
Coker, SF
Mitchell, E
Cooper, JB
Wood, S
Broadbridge, R
Clarke, IN
Lambden, PR
Shoolingin-Jordan, PM
AF Hussey, Robert J.
Coates, Leighton
Gill, Raj S.
Erskine, Peter T.
Coker, Shu-Fen
Mitchell, Ed
Cooper, Jonathan B.
Wood, Steve
Broadbridge, Robert
Clarke, Ian N.
Lambden, Paul R.
Shoolingin-Jordan, Peter M.
TI A Structural Study of Norovirus 3C Protease Specificity: Binding of a
Designed Active Site-Directed Peptide Inhibitor
SO BIOCHEMISTRY
LA English
DT Article
ID RAY CRYSTALLOGRAPHIC STRUCTURE; SOLID-PHASE SYNTHESIS; BIOLOGICAL
EVALUATION; CRYSTAL-STRUCTURE; 3C-LIKE PROTEASE; CLEAVAGE SITES;
GENE-PRODUCT; IN-VITRO; VIRUS; POLYPROTEIN
AB Noroviruses are the major cause of human epidemic nonbacterial gastroenteritis. Viral replication requires a 3C cysteine protease that cleaves a 200 kDa viral polyprotein into its constituent functional proteins. Here we describe the X-ray structure of the Southampton norovirus 3C protease (SV3CP) bound to an active site-directed peptide inhibitor (MAPI) which has been refined at 1.7 angstrom resolution. The inhibitor, acetyl-Glu-Phe-Gln-Leu-Gln-X, which is based on the most rapidly cleaved recognition sequence in the 200 kDa polyprotein substrate, reacts covalently through its propenyl ethyl ester group (X) with the active site nucleophile, Cys 139. The structure permits, for the first time, the identification of substrate recognition and binding groups in a noroviral 3C protease and thus provides important new information for the development of antiviral prophylactics.
C1 [Gill, Raj S.; Erskine, Peter T.; Coker, Shu-Fen; Cooper, Jonathan B.; Wood, Steve] UCL, Lab Prot Crystallog, Ctr Amyloidosis & Acute Phase Prot, Div Med, London NW3 2PF, England.
[Hussey, Robert J.; Shoolingin-Jordan, Peter M.] Univ Southampton, Sch Biol Sci, Southampton SO16 7PX, Hants, England.
[Mitchell, Ed] European Synchrotron Radiat Facil, F-38043 Grenoble 9, France.
[Broadbridge, Robert] Peptide Prot Res Ltd, Wickham PO17 5DY, Hants, England.
[Clarke, Ian N.; Lambden, Paul R.] Southampton Gen Hosp, Mol Microbiol Grp, Div Infect Inflammat & Immun, Univ Med Sch, Southampton SO16 6YD, Hants, England.
[Coates, Leighton] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
RP Cooper, JB (reprint author), UCL, Lab Prot Crystallog, Ctr Amyloidosis & Acute Phase Prot, Div Med, Royal Free Campus,Rowland Hill St, London NW3 2PF, England.
EM j.b.cooper@medsch.ucl.ac.uk
OI Clarke, Ian/0000-0002-4938-1620; Coates, Leighton/0000-0003-2342-049X
FU School of Biological Sciences, University of Southampton; Hope
(Southampton General Hospital); Wellcome Trust [086112]
FX We acknowledge the School of Biological Sciences, University of
Southampton, for a studentship to R.J.H., Hope (Southampton General
Hospital) for a grant to P.M.S.-J., the Wellcome Trust for a program
grant to I.N.C. and P.R.L. (No. 086112), and the ESRF (Grenoble, France)
for provision of synchrotron beamtime and travel support.
NR 41
TC 25
Z9 25
U1 1
U2 9
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0006-2960
J9 BIOCHEMISTRY-US
JI Biochemistry
PD JAN 18
PY 2011
VL 50
IS 2
BP 240
EP 249
DI 10.1021/bi1008497
PG 10
WC Biochemistry & Molecular Biology
SC Biochemistry & Molecular Biology
GA 703PJ
UT WOS:000285990400008
PM 21128685
ER
PT J
AU Thiele, I
Hyduke, DR
Steeb, B
Fankam, G
Allen, DK
Bazzani, S
Charusanti, P
Chen, FC
Fleming, RMT
Hsiung, CA
De Keersmaecker, SCJ
Liao, YC
Marchal, K
Mo, ML
Ozdemir, E
Raghunathan, A
Reed, JL
Shin, SI
Sigurbjornsdottir, S
Steinmann, J
Sudarsan, S
Swainston, N
Thijs, IM
Zengler, K
Palsson, BO
Adkins, JN
Bumann, D
AF Thiele, Ines
Hyduke, Daniel R.
Steeb, Benjamin
Fankam, Guy
Allen, Douglas K.
Bazzani, Susanna
Charusanti, Pep
Chen, Feng-Chi
Fleming, Ronan M. T.
Hsiung, Chao A.
De Keersmaecker, Sigrid C. J.
Liao, Yu-Chieh
Marchal, Kathleen
Mo, Monica L.
Oezdemir, Emre
Raghunathan, Anu
Reed, Jennifer L.
Shin, Sook-Il
Sigurbjornsdottir, Sara
Steinmann, Jonas
Sudarsan, Suresh
Swainston, Neil
Thijs, Inge M.
Zengler, Karsten
Palsson, Bernhard O.
Adkins, Joshua N.
Bumann, Dirk
TI A community effort towards a knowledge-base and mathematical model of
the human pathogen Salmonella Typhimurium LT2
SO BMC SYSTEMS BIOLOGY
LA English
DT Article
ID ESCHERICHIA-COLI; RECONSTRUCTION; ANNOTATION; METABOLISM; NETWORKS;
GENOMES; PROTEIN
AB Background: Metabolic reconstructions (MRs) are common denominators in systems biology and represent biochemical, genetic, and genomic (BiGG) knowledge-bases for target organisms by capturing currently available information in a consistent, structured manner. Salmonella enterica subspecies I serovar Typhimurium is a human pathogen, causes various diseases and its increasing antibiotic resistance poses a public health problem.
Results: Here, we describe a community-driven effort, in which more than 20 experts in S. Typhimurium biology and systems biology collaborated to reconcile and expand the S. Typhimurium BiGG knowledge-base. The consensus MR was obtained starting from two independently developed MRs for S. Typhimurium. Key results of this reconstruction jamboree include i) development and implementation of a community-based workflow for MR annotation and reconciliation; ii) incorporation of thermodynamic information; and iii) use of the consensus MR to identify potential multi-target drug therapy approaches.
Conclusion: Taken together, with the growing number of parallel MRs a structured, community-driven approach will be necessary to maximize quality while increasing adoption of MRs in experimental design and interpretation.
C1 [Steeb, Benjamin; Bumann, Dirk] Univ Basel, Biozentrum, Basel, Switzerland.
[Thiele, Ines; Fleming, Ronan M. T.] Univ Iceland, Ctr Syst Biol, Reykjavik, Iceland.
[Thiele, Ines] Univ Iceland, Fac Ind Engn Mech Engn & Comp Sci, Reykjavik, Iceland.
[Hyduke, Daniel R.; Fankam, Guy; Charusanti, Pep; Mo, Monica L.; Zengler, Karsten; Palsson, Bernhard O.] Univ Calif San Diego, Dept Bioengn, La Jolla, CA 92093 USA.
[Allen, Douglas K.] USDA ARS, Plant Genet Res Unit, Donald Danforth Plant Sci Ctr, St Louis, MO USA.
[Bazzani, Susanna] Tech Univ Carolo Wilhelmina Braunschweig, Inst Bioinformat & Biochem, Braunschweig, Germany.
[Chen, Feng-Chi; Hsiung, Chao A.; Liao, Yu-Chieh] Natl Hlth Res Inst, Div Biostat & Bioinformat, Inst Populat Hlth Sci, Zhunan, Taiwan.
[Fleming, Ronan M. T.] Univ Iceland, Inst Sci, IS-107 Reykjavik, Iceland.
[De Keersmaecker, Sigrid C. J.; Marchal, Kathleen; Thijs, Inge M.] Katholieke Univ Leuven, Ctr Microbial & Plant Genet, Dept Microbial & Mol Syst, Louvain, Belgium.
[Oezdemir, Emre] Ecole Polytech Fed Lausanne, Lab Computat Syst Biotechnol, Swiss Inst Bioinformat, Lausanne, Switzerland.
[Raghunathan, Anu; Shin, Sook-Il] Mt Sinai Sch Med, Dept Infect Dis, New York, NY USA.
[Reed, Jennifer L.] Univ Wisconsin, Dept Chem & Biol Engn, Madison, WI USA.
[Sigurbjornsdottir, Sara; Steinmann, Jonas] Univ Iceland, Fac Life & Environm Sci, Reykjavik, Iceland.
[Sudarsan, Suresh] Tech Univ Dortmund, Dept Biochem & Chem Engn, Dortmund, Germany.
[Swainston, Neil] Univ Manchester, Sch Comp Sci, Manchester, Lancs, England.
[Swainston, Neil] Univ Manchester, Manchester Ctr Integrat Syst Biol, Manchester Interdisciplinary Bioctr, Manchester, Lancs, England.
[Adkins, Joshua N.] Pacific NW Natl Lab, Div Biol Sci, Richland, WA 99352 USA.
RP Bumann, D (reprint author), Univ Basel, Biozentrum, Basel, Switzerland.
EM dirk.bumann@unibas.ch
RI Reed, Jennifer/E-5137-2011; Liao, Yu-Chieh/E-5031-2011; Marchal,
Kathleen/B-5001-2013; Adkins, Joshua/B-9881-2013; Chen, Feng-Chi
/E-3841-2010; Hsiung, Chao Agnes/E-3994-2010; Allen, Doug/M-2836-2013;
Thiele, Ines/A-7629-2014;
OI Zengler, Karsten/0000-0002-8062-3296; Ozdemir, Emre/0000-0001-5548-6720;
Marchal, Kathleen/0000-0002-2169-4588; Adkins,
Joshua/0000-0003-0399-0700; Allen, Doug/0000-0001-8599-8946; Thiele,
Ines/0000-0002-8071-7110; Liao, Yu-Chieh/0000-0002-4360-7932;
Charusanti, Pep/0000-0003-0009-6615
FU National Institute of Allergy and Infectious Diseases NIH/DHHS
[Y1-AI-8401-01]; European Community [PIRG05-GA-2009-249261]
FX The authors would like to thank R. Archila and K.C. Soh for
participation at the opening day of the reconstruction jamboree. I.T.
would like to thank M. Herrgard for the valuable discussions. This work
was supported in part by the National Institute of Allergy and
Infectious Diseases NIH/DHHS through interagency agreement
Y1-AI-8401-01. I.T. was supported in part by a Marie Curie International
Reintegration Grant within the 7th European Community Framework Program
(PIRG05-GA-2009-249261).
NR 46
TC 60
Z9 60
U1 2
U2 16
PU BIOMED CENTRAL LTD
PI LONDON
PA 236 GRAYS INN RD, FLOOR 6, LONDON WC1X 8HL, ENGLAND
SN 1752-0509
J9 BMC SYST BIOL
JI BMC Syst. Biol.
PD JAN 18
PY 2011
VL 5
AR 8
DI 10.1186/1752-0509-5-8
PG 9
WC Mathematical & Computational Biology
SC Mathematical & Computational Biology
GA 714PS
UT WOS:000286822100001
PM 21244678
ER
PT J
AU Aaltonen, T
Gonzalez, BA
Amerio, S
Amidei, D
Anastassov, A
Annovi, A
Antos, J
Apollinari, G
Appel, JA
Apresyan, A
Arisawa, T
Artikov, A
Asaadi, J
Ashmanskas, W
Auerbach, B
Aurisano, A
Azfar, F
Badgett, W
Barbaro-Galtieri, A
Barnes, VE
Barnett, BA
Barria, P
Bartos, P
Bauce, M
Bauer, G
Bedeschi, F
Beecher, D
Behari, S
Bellettini, G
Bellinger, J
Benjamin, D
Beretvas, A
Bhatti, A
Binkley, M
Bisello, D
Bizjak, I
Bland, KR
Blumenfeld, B
Bocci, A
Bodek, A
Bortoletto, D
Boudreau, J
Boveia, A
Brau, B
Brigliadori, L
Brisuda, A
Bromberg, C
Brucken, E
Bucciantonio, M
Budagov, J
Budd, HS
Budd, S
Burkett, K
Busetto, G
Bussey, P
Buzatu, A
Calancha, C
Camarda, S
Campanelli, M
Campbell, M
Canelli, F
Canepa, A
Carls, B
Carlsmith, D
Carosi, R
Carrillo, S
Carron, S
Casal, B
Casarsa, M
Castro, A
Catastini, P
Cauz, D
Cavaliere, V
Cavalli-Sforza, M
Cerri, A
Cerrito, L
Chen, YC
Chertok, M
Chiarelli, G
Chlachidze, G
Chlebana, F
Cho, K
Chokheli, D
Chou, JP
Chung, WH
Chung, YS
Ciobanu, CI
Ciocci, MA
Clark, A
Compostella, G
Convery, ME
Conway, J
Corbo, M
Cordelli, M
Cox, CA
Cox, DJ
Crescioli, F
Almenar, CC
Cuevas, J
Culbertson, R
Dagenhart, D
d'Ascenzo, N
Datta, M
de Barbaro, P
De Cecco, S
De Lorenzo, G
Dell'Orso, M
Deluca, C
Demortier, L
Deng, J
Deninno, M
Devoto, F
d'Errico, M
Di Canto, A
Di Ruzza, B
Dittmann, JR
D'Onofrio, M
Donati, S
Dong, P
Dorigo, M
Dorigo, T
Ebina, K
Elagin, A
Eppig, A
Erbacher, R
Errede, D
Errede, S
Ershaidat, N
Eusebi, R
Fang, HC
Farrington, S
Feindt, M
Fernandez, JP
Ferrazza, C
Field, R
Flanagan, G
Forrest, R
Frank, MJ
Franklin, M
Freeman, JC
Funakoshi, Y
Furic, I
Gallinaro, M
Galyardt, J
Garcia, JE
Garfinkel, AF
Garosi, P
Gerberich, H
Gerchtein, E
Giagu, S
Giakoumopoulou, V
Giannetti, P
Gibson, K
Ginsburg, CM
Giokaris, N
Giromini, P
Giunta, M
Giurgiu, G
Glagolev, V
Glenzinski, D
Gold, M
Goldin, D
Goldschmidt, N
Golossanov, A
Gomez, G
Gomez-Ceballos, G
Goncharov, M
Gonzalez, O
Gorelov, I
Goshaw, AT
Goulianos, K
Gresele, A
Grinstein, S
Grosso-Pilcher, C
Group, RC
da Costa, JG
Gunay-Unalan, Z
Haber, C
Hahn, SR
Halkiadakis, E
Hamaguchi, A
Han, JY
Happacher, F
Hara, K
Hare, D
Hare, M
Harr, RF
Hatakeyama, K
Hays, C
Heck, M
Heinrich, J
Herndon, M
Hewamanage, S
Hidas, D
Hocker, A
Hopkins, W
Horn, D
Hou, S
Hughes, RE
Hurwitz, M
Husemann, U
Hussain, N
Hussein, M
Huston, J
Introzzi, G
Iori, M
Ivanov, A
James, E
Jang, D
Jayatilaka, B
Jeon, EJ
Jha, MK
Jindariani, S
Johnson, W
Jones, M
Joo, KK
Jun, SY
Junk, TR
Kamon, T
Karchin, PE
Kato, Y
Ketchum, W
Keung, J
Khotilovich, V
Kilminster, B
Kim, DH
Kim, HS
Kim, HW
Kim, JE
Kim, MJ
Kim, SB
Kim, SH
Kim, YK
Kimura, N
Kirby, M
Klimenko, S
Kondo, K
Kong, DJ
Konigsberg, J
Kotwal, AV
Kreps, M
Kroll, J
Krop, D
Krumnack, N
Kruse, M
Krutelyov, V
Kuhr, T
Kurata, M
Kwang, S
Laasanen, AT
Lami, S
Lammel, S
Lancaster, M
Lander, RL
Lannon, K
Lath, A
Latino, G
Lazzizzera, I
LeCompte, T
Lee, E
Lee, HS
Lee, JS
Lee, SW
Leo, S
Leone, S
Lewis, JD
Lin, CJ
Linacre, J
Lindgren, M
Lipeles, E
Lister, A
Litvintsev, DO
Liu, C
Liu, Q
Liu, T
Lockwitz, S
Lockyer, NS
Loginov, A
Lucchesi, D
Lueck, J
Lujan, P
Lukens, P
Lungu, G
Lys, J
Lysak, R
Madrak, R
Maeshima, K
Makhoul, K
Maksimovic, P
Malik, S
Manca, G
Manousakis-Katsikakis, A
Margaroli, F
Marino, C
Martinez, M
Martinez-Ballarin, R
Mastrandrea, P
Mathis, M
Mattson, ME
Mazzanti, P
McFarland, KS
McIntyre, P
McNulty, R
Mehta, A
Mehtala, P
Menzione, A
Mesropian, C
Miao, T
Mietlicki, D
Mitra, A
Miyake, H
Moed, S
Moggi, N
Mondragon, MN
Moon, CS
Moore, R
Morello, MJ
Morlock, J
Fernandez, PM
Mukherjee, A
Muller, T
Murat, P
Mussini, M
Nachtman, J
Nagai, Y
Naganoma, J
Nakano, I
Napier, A
Nett, J
Neu, C
Neubauer, MS
Nielsen, J
Nodulman, L
Norniella, O
Nurse, E
Oakes, L
Oh, SH
Oh, YD
Oksuzian, I
Okusawa, T
Orava, R
Ortolan, L
Griso, SP
Pagliarone, C
Palencia, E
Papadimitriou, V
Paramonov, AA
Patrick, J
Pauletta, G
Paulini, M
Paus, C
Pellett, DE
Penzo, A
Phillips, TJ
Piacentino, G
Pianori, E
Pilot, J
Pitts, K
Plager, C
Pondrom, L
Potamianos, K
Poukhov, O
Prokoshin, F
Pronko, A
Ptohos, F
Pueschel, E
Punzi, G
Pursley, J
Rahaman, A
Ramakrishnan, V
Ranjan, N
Redondo, I
Renton, P
Rescigno, M
Rimondi, F
Ristori, L
Robson, A
Rodrigo, T
Rodriguez, T
Rogers, E
Rolli, S
Roser, R
Rossi, M
Rubbo, F
Ruffini, F
Ruiz, A
Russ, J
Rusu, V
Safonov, A
Sakumoto, WK
Sakurai, Y
Santi, L
Sartori, L
Sato, K
Saveliev, V
Savoy-Navarro, A
Schlabach, P
Schmidt, A
Schmidt, EE
Schmidt, MP
Schmitt, M
Schwarz, T
Scodellaro, L
Scribano, A
Scuri, F
Sedov, A
Seidel, S
Seiya, Y
Semenov, A
Sforza, F
Sfyrla, A
Shalhout, SZ
Shears, T
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Yoshida, T
Yu, GB
Yu, I
Yu, SS
Yun, JC
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Zeng, Y
Zucchelli, S
AF Aaltonen, T.
Alvarez Gonzalez, B.
Amerio, S.
Amidei, D.
Anastassov, A.
Annovi, A.
Antos, J.
Apollinari, G.
Appel, J. A.
Apresyan, A.
Arisawa, T.
Artikov, A.
Asaadi, J.
Ashmanskas, W.
Auerbach, B.
Aurisano, A.
Azfar, F.
Badgett, W.
Barbaro-Galtieri, A.
Barnes, V. E.
Barnett, B. A.
Barria, P.
Bartos, P.
Bauce, M.
Bauer, G.
Bedeschi, F.
Beecher, D.
Behari, S.
Bellettini, G.
Bellinger, J.
Benjamin, D.
Beretvas, A.
Bhatti, A.
Binkley, M.
Bisello, D.
Bizjak, I.
Bland, K. R.
Blumenfeld, B.
Bocci, A.
Bodek, A.
Bortoletto, D.
Boudreau, J.
Boveia, A.
Brau, B.
Brigliadori, L.
Brisuda, A.
Bromberg, C.
Brucken, E.
Bucciantonio, M.
Budagov, J.
Budd, H. S.
Budd, S.
Burkett, K.
Busetto, G.
Bussey, P.
Buzatu, A.
Calancha, C.
Camarda, S.
Campanelli, M.
Campbell, M.
Canelli, F.
Canepa, A.
Carls, B.
Carlsmith, D.
Carosi, R.
Carrillo, S.
Carron, S.
Casal, B.
Casarsa, M.
Castro, A.
Catastini, P.
Cauz, D.
Cavaliere, V.
Cavalli-Sforza, M.
Cerri, A.
Cerrito, L.
Chen, Y. C.
Chertok, M.
Chiarelli, G.
Chlachidze, G.
Chlebana, F.
Cho, K.
Chokheli, D.
Chou, J. P.
Chung, W. H.
Chung, Y. S.
Ciobanu, C. I.
Ciocci, M. A.
Clark, A.
Compostella, G.
Convery, M. E.
Conway, J.
Corbo, M.
Cordelli, M.
Cox, C. A.
Cox, D. J.
Crescioli, F.
Almenar, C. Cuenca
Cuevas, J.
Culbertson, R.
Dagenhart, D.
d'Ascenzo, N.
Datta, M.
de Barbaro, P.
De Cecco, S.
De Lorenzo, G.
Dell'Orso, M.
Deluca, C.
Demortier, L.
Deng, J.
Deninno, M.
Devoto, F.
d'Errico, M.
Di Canto, A.
Di Ruzza, B.
Dittmann, J. R.
D'Onofrio, M.
Donati, S.
Dong, P.
Dorigo, M.
Dorigo, T.
Ebina, K.
Elagin, A.
Eppig, A.
Erbacher, R.
Errede, D.
Errede, S.
Ershaidat, N.
Eusebi, R.
Fang, H. C.
Farrington, S.
Feindt, M.
Fernandez, J. P.
Ferrazza, C.
Field, R.
Flanagan, G.
Forrest, R.
Frank, M. J.
Franklin, M.
Freeman, J. C.
Funakoshi, Y.
Furic, I.
Gallinaro, M.
Galyardt, J.
Garcia, J. E.
Garfinkel, A. F.
Garosi, P.
Gerberich, H.
Gerchtein, E.
Giagu, S.
Giakoumopoulou, V.
Giannetti, P.
Gibson, K.
Ginsburg, C. M.
Giokaris, N.
Giromini, P.
Giunta, M.
Giurgiu, G.
Glagolev, V.
Glenzinski, D.
Gold, M.
Goldin, D.
Goldschmidt, N.
Golossanov, A.
Gomez, G.
Gomez-Ceballos, G.
Goncharov, M.
Gonzalez, O.
Gorelov, I.
Goshaw, A. T.
Goulianos, K.
Gresele, A.
Grinstein, S.
Grosso-Pilcher, C.
Group, R. C.
da Costa, J. Guimaraes
Gunay-Unalan, Z.
Haber, C.
Hahn, S. R.
Halkiadakis, E.
Hamaguchi, A.
Han, J. Y.
Happacher, F.
Hara, K.
Hare, D.
Hare, M.
Harr, R. F.
Hatakeyama, K.
Hays, C.
Heck, M.
Heinrich, J.
Herndon, M.
Hewamanage, S.
Hidas, D.
Hocker, A.
Hopkins, W.
Horn, D.
Hou, S.
Hughes, R. E.
Hurwitz, M.
Husemann, U.
Hussain, N.
Hussein, M.
Huston, J.
Introzzi, G.
Iori, M.
Ivanov, A.
James, E.
Jang, D.
Jayatilaka, B.
Jeon, E. J.
Jha, M. K.
Jindariani, S.
Johnson, W.
Jones, M.
Joo, K. K.
Jun, S. Y.
Junk, T. R.
Kamon, T.
Karchin, P. E.
Kato, Y.
Ketchum, W.
Keung, J.
Khotilovich, V.
Kilminster, B.
Kim, D. H.
Kim, H. S.
Kim, H. W.
Kim, J. E.
Kim, M. J.
Kim, S. B.
Kim, S. H.
Kim, Y. K.
Kimura, N.
Kirby, M.
Klimenko, S.
Kondo, K.
Kong, D. J.
Konigsberg, J.
Kotwal, A. V.
Kreps, M.
Kroll, J.
Krop, D.
Krumnack, N.
Kruse, M.
Krutelyov, V.
Kuhr, T.
Kurata, M.
Kwang, S.
Laasanen, A. T.
Lami, S.
Lammel, S.
Lancaster, M.
Lander, R. L.
Lannon, K.
Lath, A.
Latino, G.
Lazzizzera, I.
LeCompte, T.
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CA CDF Collaboration
TI Search for Randall-Sundrum gravitons in the diphoton channel at CDF
SO PHYSICAL REVIEW D
LA English
DT Article
ID PHOTON PAIR PRODUCTION; ELECTROMAGNETIC CALORIMETER; COLLISIONS;
HIERARCHY; PHYSICS; TEV
AB We report on a search for new particles in the diphoton channel using a data sample of p (p) over bar collisions at root s = 1.96 TeV collected by the CDF II detector at the Fermilab Tevatron, with an integrated luminosity of 5.4 fb(-1). The diphoton invariant mass spectrum of the data agrees well with the standard model expectation. We set upper limits on the production cross section times branching ratio for the Randall-Sundrum graviton, as a function of diphoton mass. We subsequently derive lower limits on the graviton mass of 459 GeV = c(2) and 963 GeV = c(2), at the 95% confidence level, for coupling parameters ( k/(M) over bar (Pl)) of 0.01 and 0.1, respectively.
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[Bland, K. R.; Dittmann, J. R.; Frank, M. J.; Hatakeyama, K.; Hewamanage, S.; Wu, Z.] Baylor Univ, Waco, TX 76798 USA.
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[Brigliadori, L.; Castro, A.; Mussini, M.; Rimondi, F.; Zucchelli, S.] Univ Bologna, I-40127 Bologna, Italy.
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RP Aaltonen, T (reprint author), Univ Helsinki, Div High Energy Phys, Dept Phys, FIN-00014 Helsinki, Finland.
RI Ruiz, Alberto/E-4473-2011; Robson, Aidan/G-1087-2011; De Cecco,
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Soo-Bong/B-7061-2014; Lysak, Roman/H-2995-2014; Moon,
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Sebastian/N-3988-2014; Paulini, Manfred/N-7794-2014; Russ,
James/P-3092-2014; unalan, zeynep/C-6660-2015; Lazzizzera,
Ignazio/E-9678-2015; Garcia, Jose /H-6339-2015; Cavalli-Sforza,
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Giorgio/E-8953-2012; Introzzi, Gianluca/K-2497-2015; Piacentino,
Giovanni/K-3269-2015; Martinez Ballarin, Roberto/K-9209-2015; Gorelov,
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OI Farrington, Sinead/0000-0001-5350-9271; Gallinaro,
Michele/0000-0003-1261-2277; Torre, Stefano/0000-0002-7565-0118;
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Aidan/0000-0002-1659-8284; Vidal Marono, Miguel/0000-0002-2590-5987;
Casarsa, Massimo/0000-0002-1353-8964; Latino,
Giuseppe/0000-0002-4098-3502; iori, maurizio/0000-0002-6349-0380; Jun,
Soon Yung/0000-0003-3370-6109; Toback, David/0000-0003-3457-4144; Hays,
Chris/0000-0003-2371-9723; Ruiz, Alberto/0000-0002-3639-0368; Punzi,
Giovanni/0000-0002-8346-9052; Annovi, Alberto/0000-0002-4649-4398;
Ivanov, Andrew/0000-0002-9270-5643; Warburton,
Andreas/0000-0002-2298-7315; Moon, Chang-Seong/0000-0001-8229-7829;
Scodellaro, Luca/0000-0002-4974-8330; Grinstein,
Sebastian/0000-0002-6460-8694; Paulini, Manfred/0000-0002-6714-5787;
Russ, James/0000-0001-9856-9155; unalan, zeynep/0000-0003-2570-7611;
Lazzizzera, Ignazio/0000-0001-5092-7531; ciocci, maria agnese
/0000-0003-0002-5462; Chiarelli, Giorgio/0000-0001-9851-4816; Introzzi,
Gianluca/0000-0002-1314-2580; Piacentino, Giovanni/0000-0001-9884-2924;
Martinez Ballarin, Roberto/0000-0003-0588-6720; Gorelov,
Igor/0000-0001-5570-0133; Canelli, Florencia/0000-0001-6361-2117; Lami,
Stefano/0000-0001-9492-0147; Margaroli, Fabrizio/0000-0002-3869-0153;
Group, Robert/0000-0002-4097-5254; Simonenko,
Alexander/0000-0001-6580-3638; Lancaster, Mark/0000-0002-8872-7292;
Nielsen, Jason/0000-0002-9175-4419
FU U.S. Department of Energy; National Science Foundation; Italian Istituto
Nazionale di Fisica Nucleare; Ministry of Education, Culture, Sports,
Science and Technology of Japan; Natural Sciences and Engineering
Research Council of Canada; National Science Council of the Republic of
China; Swiss National Science Foundation; A.P. Sloan Foundation;
Bundesministerium fur Bildung und Forschung, Germany; World Class
University; National Research Foundation of Korea; Science and
Technology Facilities Council; Royal Society, UK; Institut National de
Physique Nucleaire et Physique des Particules/CNRS; Russian Foundation
for Basic Research; Ministerio de Ciencia e Innovacion, and Programa
Consolider-Ingenio, Spain; Slovak RD Agency; Academy of Finland
FX We thank the Fermilab staff and the technical staffs of the
participating institutions for their vital contributions. This work was
supported by the U.S. Department of Energy and National Science
Foundation; the Italian Istituto Nazionale di Fisica Nucleare; the
Ministry of Education, Culture, Sports, Science and Technology of Japan;
the Natural Sciences and Engineering Research Council of Canada; the
National Science Council of the Republic of China; the Swiss National
Science Foundation; the A.P. Sloan Foundation; the Bundesministerium fur
Bildung und Forschung, Germany; the World Class University Program, the
National Research Foundation of Korea; the Science and Technology
Facilities Council and the Royal Society, UK; the Institut National de
Physique Nucleaire et Physique des Particules/CNRS; the Russian
Foundation for Basic Research; the Ministerio de Ciencia e Innovacion,
and Programa Consolider-Ingenio 2010, Spain; the Slovak R&D Agency; and
the Academy of Finland. We thank M. C. Kumar, P. Mathews, V. Ravindran,
and A. Tripathi for the calculation of NLO K factors for this analysis.
NR 25
TC 16
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U1 2
U2 19
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1550-7998
J9 PHYS REV D
JI Phys. Rev. D
PD JAN 18
PY 2011
VL 83
IS 1
AR 011102
DI 10.1103/PhysRevD.83.011102
PG 8
WC Astronomy & Astrophysics; Physics, Particles & Fields
SC Astronomy & Astrophysics; Physics
GA 713UZ
UT WOS:000286764200001
ER
PT J
AU Fister, TT
Fong, DD
Eastman, JA
Iddir, H
Zapol, P
Fuoss, PH
Balasubramanian, M
Gordon, RA
Balasubramaniam, KR
Salvador, PA
AF Fister, T. T.
Fong, D. D.
Eastman, J. A.
Iddir, H.
Zapol, P.
Fuoss, P. H.
Balasubramanian, M.
Gordon, R. A.
Balasubramaniam, K. R.
Salvador, P. A.
TI Total-Reflection Inelastic X-Ray Scattering from a 10-nm Thick
La0.6Sr0.4CoO3 Thin Film
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
AB To study equilibrium changes in composition, valence, and electronic structure near the surface and into the bulk, we demonstrate the use of a new approach, total-reflection inelastic x-ray scattering, as a sub-keV spectroscopy capable of depth profiling chemical changes in thin films with nanometer resolution. By comparing data acquired under total x-ray reflection and penetrating conditions, we are able to separate the O K-edge spectra from a 10 nm La0.6Sr0.4CoO3 thin film from that of the underlying SrTiO3 substrate. With a smaller wavelength probe than comparable soft x-ray absorption measurements, we also describe the ability to easily access dipole-forbidden final states, using the dramatic evolution of the La N-4,N-5 edge with momentum transfer as an example.
C1 [Fister, T. T.; Fong, D. D.; Eastman, J. A.; Iddir, H.; Zapol, P.; Fuoss, P. H.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA.
[Gordon, R. A.] Simon Fraser Univ, Adv Photon Source, Dept Phys, Adv Photon Source, Argonne, IL 60439 USA.
[Balasubramaniam, K. R.; Salvador, P. A.] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA.
RP Fister, TT (reprint author), Argonne Natl Lab, Div Mat Sci, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM fister@anl.gov
RI Eastman, Jeffrey/E-4380-2011; Salvador, Paul/A-9435-2011; Zapol,
Peter/G-1810-2012
OI Salvador, Paul/0000-0001-7106-0017; Zapol, Peter/0000-0003-0570-9169
FU U.S. Department of Energy (DOE); NSERC; DOE Basic Energy Sciences
[DE-AC02-06CH11357]; DOE Solid-State Energy Conversion Alliance
FX We thank Maurits Haverkort and Josh Kas for assisting with the
theoretical calculations and Gerald Seidler for reviewing the
manuscript. The beam line staff at 20ID, Advanced Photon Source (APS)
provided valuable assistance. Research at sector 20 is supported by the
U.S. Department of Energy (DOE), NSERC, and its founding institutions.
This research, including use of the APS, is funded by the DOE Basic
Energy Sciences under Contract No. DE-AC02-06CH11357 and by the DOE
Solid-State Energy Conversion Alliance (T. T. F., K. R. B., and P. A.
S.).
NR 22
TC 15
Z9 15
U1 4
U2 27
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
EI 1079-7114
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD JAN 18
PY 2011
VL 106
IS 3
AR 037401
DI 10.1103/PhysRevLett.106.037401
PG 4
WC Physics, Multidisciplinary
SC Physics
GA 713MN
UT WOS:000286742200019
PM 21405295
ER
PT J
AU Kohama, Y
Sologubenko, AV
Dilley, NR
Zapf, VS
Jaime, M
Mydosh, JA
Paduan, A
Al-Hassanieh, KA
Sengupta, P
Gangadharaiah, S
Chernyshev, AL
Batista, CD
AF Kohama, Y.
Sologubenko, A. V.
Dilley, N. R.
Zapf, V. S.
Jaime, M.
Mydosh, J. A.
Paduan-Filho, A.
Al-Hassanieh, K. A.
Sengupta, P.
Gangadharaiah, S.
Chernyshev, A. L.
Batista, C. D.
TI Thermal Transport and Strong Mass Renormalization in NiCl2-4SC(NH2)(2)
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID CONDENSATION
AB Several quantum paramagnets exhibit magnetic-field-induced quantum phase transitions to an anti-ferromagnetic state that exists for H-c1 <= H <= H-c2. For some of these compounds, there is a significant asymmetry between the low-and high-field transitions. We present specific heat and thermal conductivity measurements in NiCl2-4SC(NH2)(2), together with calculations which show that the asymmetry is caused by a strong mass renormalization due to quantum fluctuations for H <= H-c1 that are absent for H >= H-c2. We argue that the enigmatic lack of asymmetry in thermal conductivity is due to a concomitant renormalization of the impurity scattering.
C1 [Kohama, Y.; Zapf, V. S.; Jaime, M.] LANL, MPA CMMS, Los Alamos, NM 87545 USA.
[Sologubenko, A. V.] Univ Cologne, Inst Phys 2, D-50937 Cologne, Germany.
[Dilley, N. R.] Quantum Design Inc, San Diego, CA 92121 USA.
[Mydosh, J. A.] Leiden Univ, Kamerlingh Onnes Lab, NL-2300 RA Leiden, Netherlands.
[Paduan-Filho, A.] Univ Sao Paulo, Inst Fis, BR-05508 Sao Paulo, Brazil.
[Al-Hassanieh, K. A.; Batista, C. D.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
[Sengupta, P.] Nanyang Technol Univ, Sch Phys & Math Sci, Singapore 639798, Singapore.
[Gangadharaiah, S.; Chernyshev, A. L.] Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA.
[Gangadharaiah, S.; Chernyshev, A. L.] Max Planck Inst Phys Komplexer Syst, D-01187 Dresden, Germany.
RP Kohama, Y (reprint author), LANL, MPA CMMS, Los Alamos, NM 87545 USA.
RI PaduanFilho, Armando/H-2443-2011; Zapf, Vivien/K-5645-2013; Sengupta,
Pinaki/B-6999-2011; Jaime, Marcelo/F-3791-2015; Batista,
Cristian/J-8008-2016
OI Zapf, Vivien/0000-0002-8375-4515; Jaime, Marcelo/0000-0001-5360-5220;
FU NSF; State of Florida; U.S. DOE [DE-FG02-04ER46174]; DFG [SFB 608]
FX This work was supported by the NSF, the State of Florida, the U.S. DOE
under Grant No. DE-FG02-04ER46174 (A. L. C.) and by the DFG, SFB 608 (A.
S. and J. M.).
NR 18
TC 31
Z9 31
U1 0
U2 22
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD JAN 18
PY 2011
VL 106
IS 3
AR 037203
DI 10.1103/PhysRevLett.106.037203
PG 4
WC Physics, Multidisciplinary
SC Physics
GA 713MN
UT WOS:000286742200017
PM 21405291
ER
PT J
AU McLeod, A
Weber-Bargioni, A
Zhang, Z
Dhuey, S
Harteneck, B
Neaton, JB
Cabrini, S
Schuck, PJ
AF McLeod, A.
Weber-Bargioni, A.
Zhang, Z.
Dhuey, S.
Harteneck, B.
Neaton, J. B.
Cabrini, S.
Schuck, P. James
TI Nonperturbative Visualization of Nanoscale Plasmonic Field Distributions
via Photon Localization Microscopy
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID OPTICAL NEAR-FIELD; WAVE-GUIDES; NANOANTENNAS; SORTERS; ANTENNA; LIGHT
AB We demonstrate the nonperturbative use of diffraction-limited optics and photon localization microscopy to visualize the controlled nanoscale shifts of zeptoliter mode volumes within plasmonic nanostructures. Unlike tip-or coating-based methods for mapping near fields, these measurements do not affect the electromagnetic properties of the structure being investigated. We quantify the local field manipulation capabilities of asymmetric bowtie antennas, in agreement with theoretical calculations. The photon-limited localization accuracy of nanoscale mode positions is determined for many of the measured devices to be within a 95% confidence interval of +/- 2.5 nm. This accuracy also enables us to characterize the effects of nm-scale fabrication irregularities on local plasmonic mode distributions.
C1 [McLeod, A.; Weber-Bargioni, A.; Dhuey, S.; Harteneck, B.; Neaton, J. B.; Cabrini, S.; Schuck, P. James] Univ Calif Berkeley, Lawrence Berkeley Lab, Mol Foundry, Berkeley, CA 94720 USA.
[Zhang, Z.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.
RP McLeod, A (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Mol Foundry, Berkeley, CA 94720 USA.
EM jbneaton@lbl.gov; pjschuck@lbl.gov
RI Neaton, Jeffrey/F-8578-2015
OI Neaton, Jeffrey/0000-0001-7585-6135
FU Office of Science, Office of Basic Energy Sciences, of the U.S.
Department of Energy [DE-AC02-05CH11231]; National Science Foundation
FX We thank S. W. Wu, Y. Hu, and colleagues at Molecular Foundry and UC
Berkeley for their gracious help and discussions. Work at the Molecular
Foundry was supported by the Office of Science, Office of Basic Energy
Sciences, of the U.S. Department of Energy under Contract No.
DE-AC02-05CH11231. We acknowledge use of nanoHUB.org resources provided
by the Network for Computational Nanotechnology funded by the National
Science Foundation
NR 43
TC 34
Z9 34
U1 0
U2 23
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD JAN 18
PY 2011
VL 106
IS 3
AR 037402
DI 10.1103/PhysRevLett.106.037402
PG 4
WC Physics, Multidisciplinary
SC Physics
GA 713MN
UT WOS:000286742200020
PM 21405296
ER
PT J
AU Sakai, K
Stoychev, S
Ouchi, T
Higuchi, I
Schoffler, M
Mazza, T
Fukuzawa, H
Nagaya, K
Yao, M
Tamenori, Y
Kuleff, AI
Saito, N
Ueda, K
AF Sakai, K.
Stoychev, S.
Ouchi, T.
Higuchi, I.
Schoeffler, M.
Mazza, T.
Fukuzawa, H.
Nagaya, K.
Yao, M.
Tamenori, Y.
Kuleff, A. I.
Saito, N.
Ueda, K.
TI Electron-Transfer-Mediated Decay and Interatomic Coulombic Decay from
the Triply Ionized States in Argon Dimers
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID PHOTOCHEMISTRY BEAMLINE BL27SU; MOMENTUM SPECTROSCOPY; ENERGY-TRANSFER;
WATER; CLUSTERS; MOLECULES; SPRING-8; ION
AB We report the first observation of electron-transfer-mediated decay (ETMD) and interatomic Coulombic decay (ICD) from the triply charged states with an inner-valence vacancy, using the Ar dimer as an example. These ETMD and ICD processes, which lead to fragmentation of Ar3+-Ar into Ar2+-Ar2+ and Ar3+-Ar+, respectively, are unambiguously identified by electron-ion-ion coincidence spectroscopy in which the kinetic energy of the ETMD or ICD electron and the kinetic energy release between the two fragment ions are measured in coincidence.
C1 [Sakai, K.; Ouchi, T.; Mazza, T.; Fukuzawa, H.; Ueda, K.] Tohoku Univ, Inst Multidisciplinary Res Adv Mat, Sendai, Miyagi 9808577, Japan.
[Stoychev, S.; Kuleff, A. I.] Univ Heidelberg, PCI, D-69120 Heidelberg, Germany.
[Higuchi, I.; Tamenori, Y.] Japan Synchrotron Radiat Res Inst, Sayo, Hyogo 6795198, Japan.
[Schoeffler, M.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Chem Sci, Berkeley, CA 94720 USA.
[Mazza, T.] Univ Milan, Dipartimento Fis, I-20133 Milan, Italy.
[Nagaya, K.; Yao, M.] Kyoto Univ, Dept Phys, Kyoto 6068502, Japan.
[Saito, N.] NMIJ, Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3058568, Japan.
RP Sakai, K (reprint author), Tohoku Univ, Inst Multidisciplinary Res Adv Mat, Sendai, Miyagi 9808577, Japan.
EM ueda@tagen.tohoku.ac.jp
RI Schoeffler, Markus/B-6261-2008; Tamenori, Yusuke/F-8867-2014; Saito,
Norio/E-2890-2014
OI Schoeffler, Markus/0000-0001-9214-6848; Tamenori,
Yusuke/0000-0001-8004-895X;
FU JSPS; MEXT; IMRAM; Alexander von Humboldt foundation; European Community
[227597]
FX The experiments were performed at SPring-8 with the approval of JASRI.
We are grateful to L. S. Cederbaum for stimulating discussion. The work
was supported by Grant-in-Aid for Scientific Research from JSPS, by the
Management Expenses Grants for National Universities Corporations from
MEXT, and IMRAM research program. M. S. acknowledges the support by the
Alexander von Humboldt foundation. A. I. K. acknowledges the support of
the European Community's FP7 / ERC Advanced Investigator Grant No.
227597.
NR 27
TC 30
Z9 30
U1 0
U2 7
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
EI 1079-7114
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD JAN 18
PY 2011
VL 106
IS 3
AR 033401
DI 10.1103/PhysRevLett.106.033401
PG 4
WC Physics, Multidisciplinary
SC Physics
GA 713MN
UT WOS:000286742200007
PM 21405272
ER
PT J
AU Shen, NH
Massaouti, M
Gokkavas, M
Manceau, JM
Ozbay, E
Kafesaki, M
Koschny, T
Tzortzakis, S
Soukoulis, CM
AF Shen, Nian-Hai
Massaouti, Maria
Gokkavas, Mutlu
Manceau, Jean-Michel
Ozbay, Ekmel
Kafesaki, Maria
Koschny, Thomas
Tzortzakis, Stelios
Soukoulis, Costas M.
TI Optically Implemented Broadband Blueshift Switch in the Terahertz Regime
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID PHASE MODULATOR; METAMATERIALS; CLOAK; FREQUENCIES; RESONATORS; INDEX;
LASER
AB We experimentally demonstrate, for the first time, an optically implemented blueshift tunable metamaterial in the terahertz (THz) regime. The design implies two potential resonance states, and the photoconductive semiconductor (silicon) settled in the critical region plays the role of intermediary for switching the resonator from mode 1 to mode 2. The observed tuning range of the fabricated device is as high as 26% (from 0.76 THz to 0.96 THz) through optical control to silicon. The realization of broadband blueshift tunable metamaterial offers opportunities for achieving switchable metamaterials with simultaneous redshift and blueshift tunability and cascade tunable devices. Our experimental approach is compatible with semiconductor technologies and can be used for other applications in the THz regime.
C1 [Shen, Nian-Hai; Koschny, Thomas; Soukoulis, Costas M.] Iowa State Univ, Ames Lab, Ames, IA 50011 USA.
[Shen, Nian-Hai; Koschny, Thomas; Soukoulis, Costas M.] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA.
[Massaouti, Maria; Manceau, Jean-Michel; Kafesaki, Maria; Koschny, Thomas; Tzortzakis, Stelios; Soukoulis, Costas M.] FORTH, Inst Elect Struct & Laser, Iraklion 71110, Crete, Greece.
[Gokkavas, Mutlu; Ozbay, Ekmel] Bilkent Univ, Nanotechnol Res Ctr, TR-06800 Ankara, Turkey.
[Gokkavas, Mutlu; Ozbay, Ekmel] Bilkent Univ, Dept Phys, TR-06800 Ankara, Turkey.
[Kafesaki, Maria; Soukoulis, Costas M.] Univ Crete, Dept Mat Sci & Technol, Iraklion 71003, Crete, Greece.
RP Shen, NH (reprint author), Iowa State Univ, Ames Lab, Ames, IA 50011 USA.
EM stzortz@iesl.forth.gr; soukoulis@ameslab.gov
RI Shen, Nianhai/E-5543-2012; Kafesaki, Maria/E-6843-2012; Tzortzakis,
Stelios/J-5559-2013; Soukoulis, Costas/A-5295-2008
OI Kafesaki, Maria/0000-0002-9524-2576; Tzortzakis,
Stelios/0000-0001-9242-4182;
FU Department of Energy (Basic Energy Sciences) [DE-AC02-07CH11358];
European Union; Marie Curie Excellence Grant "MULTIRAD''
[MEXT-CT-2006-042683]
FX Work at Ames Laboratory was supported by the Department of Energy (Basic
Energy Sciences) under Contract No. DE-AC02-07CH11358. This was
partially supported by the European Union Future and Emerging
Technologies (FET) project PHOME, and the Marie Curie Excellence Grant
"MULTIRAD'' MEXT-CT-2006-042683.
NR 29
TC 98
Z9 103
U1 3
U2 51
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
EI 1079-7114
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD JAN 18
PY 2011
VL 106
IS 3
AR 037403
DI 10.1103/PhysRevLett.106.037403
PG 4
WC Physics, Multidisciplinary
SC Physics
GA 713MN
UT WOS:000286742200021
PM 21405297
ER
PT J
AU Somorjai, GA
Li, YM
AF Somorjai, Gabor A.
Li, Yimin
TI Impact of surface chemistry
SO PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF
AMERICA
LA English
DT Article
DE surface science; nanotechnology; heterogeneous catalysis; in situ
techniques; technological application
ID SUM-FREQUENCY GENERATION; SCANNING TUNNELING MICROSCOPE; SINGLE-CRYSTAL
SURFACES; SUSTAINABLE CHEMICAL TECHNOLOGIES; RAY
PHOTOELECTRON-SPECTROSCOPY; SELF-ASSEMBLED MONOLAYERS; HETEROGENEOUS
CATALYSIS; MOLECULAR-BEAM; VIBRATIONAL SPECTROSCOPY; AMMONIA-SYNTHESIS
AB The applications of molecular surface chemistry in heterogeneous catalyst technology, semiconductor-based technology, medical technology, anticorrosion and lubricant technology, and nanotechnology are highlighted in this perspective. The evolution of surface chemistry at the molecular level is reviewed, and the key roles of surface instrumentation developments for in situ studies of the gas-solid, liquid-solid, and solid-solid interfaces under reaction conditions are emphasized.
C1 [Somorjai, Gabor A.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.
Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
RP Somorjai, GA (reprint author), Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.
EM somorjai@berkeley.edu
RI Li, Yimin/F-5817-2012; Li, Yimin/F-5821-2012
FU Office of Science, Office of Basic Energy Sciences, of the US Department
of Energy [DE-AC02-05CH11231]
FX This work was supported by the Director, Office of Science, Office of
Basic Energy Sciences, of the US Department of Energy under Contract
DE-AC02-05CH11231.
NR 144
TC 66
Z9 67
U1 11
U2 99
PU NATL ACAD SCIENCES
PI WASHINGTON
PA 2101 CONSTITUTION AVE NW, WASHINGTON, DC 20418 USA
SN 0027-8424
J9 P NATL ACAD SCI USA
JI Proc. Natl. Acad. Sci. U. S. A.
PD JAN 18
PY 2011
VL 108
IS 3
BP 917
EP 924
DI 10.1073/pnas.1006669107
PG 8
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 707TF
UT WOS:000286310300010
PM 20880833
ER
PT J
AU Duguet, T
Han, Y
Yuen, C
Jing, DP
Unal, B
Evans, JW
Thiel, PA
AF Duguet, T.
Han, Yong
Yuen, Chad
Jing, Dapeng
Uenal, Baris
Evans, J. W.
Thiel, P. A.
TI Self-assembly of metal nanostructures on binary alloy surfaces
SO PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF
AMERICA
LA English
DT Article
DE deposition; epitaxial growth; STM; DFT; KMC
ID NANOPARTICLES; GROWTH; ISLANDS; FILMS; AU
AB Deposition of metals on binary alloy surfaces offers new possibilities for guiding the formation of functional metal nanostructures. This idea is explored with scanning tunneling microscopy studies and atomistic-level analysis and modeling of nonequilibrium island formation. For Au/NiAl(110), complex monolayer structures are found and compared with the simple fcc(110) bilayer structure recently observed for Ag/NiAl(110). We also consider a more complex codeposition system, (Ni + Al)/NiAl(110), which offers the opportunity for fundamental studies of self-growth of alloys including deviations for equilibrium ordering. A general multisite lattice-gas model framework enables analysis of structure selection and morphological evolution in these systems.
C1 [Evans, J. W.] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA.
[Duguet, T.; Yuen, Chad; Jing, Dapeng; Thiel, P. A.] Iowa State Univ, Dept Chem, Ames, IA 50011 USA.
[Uenal, Baris; Thiel, P. A.] Iowa State Univ, Dept Mat Sci & Engn, Ames, IA 50011 USA.
[Evans, J. W.] Iowa State Univ, Dept Math, Ames, IA 50011 USA.
[Han, Yong] Iowa State Univ, Inst Phys Res & Technol, Ames, IA 50011 USA.
[Duguet, T.; Yuen, Chad; Uenal, Baris; Evans, J. W.; Thiel, P. A.] Iowa State Univ, US DOE, Ames Lab, Ames, IA 50011 USA.
RP Evans, JW (reprint author), Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA.
EM evans@ameslab.gov
RI DUGUET, Thomas/B-6738-2011; Han, Yong/F-5701-2012; Jing,
Dapeng/M-3455-2014
OI Han, Yong/0000-0001-5404-0911; Jing, Dapeng/0000-0001-7600-7071
FU National Science Foundation [CHE-0809472]; USDOE [DE-AC02-07CH11358]
FX This work was supported by National Science Foundation Grant
CHE-0809472. Teragrid provided computational support. The work was
performed at Ames Laboratory operated for the USDOE by Iowa State
University under Contract No. DE-AC02-07CH11358.
NR 27
TC 13
Z9 13
U1 1
U2 26
PU NATL ACAD SCIENCES
PI WASHINGTON
PA 2101 CONSTITUTION AVE NW, WASHINGTON, DC 20418 USA
SN 0027-8424
J9 P NATL ACAD SCI USA
JI Proc. Natl. Acad. Sci. U. S. A.
PD JAN 18
PY 2011
VL 108
IS 3
BP 989
EP 994
DI 10.1073/pnas.1008157107
PG 6
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 707TF
UT WOS:000286310300022
PM 21097706
ER
PT J
AU Thunga, M
Lio, WY
Akinc, M
Kessler, MR
AF Thunga, Mahendra
Lio, Wilber Y.
Akinc, Mufit
Kessler, Michael R.
TI Adhesive repair of bismaleimide/carbon fiber composites with bisphenol E
cyanate ester
SO COMPOSITES SCIENCE AND TECHNOLOGY
LA English
DT Article
DE Polymer-matrix composites (PMCs); Adhesive joints; Fracture toughness;
Delamination; Bisphenol E cyanate ester
ID FRACTURE; DAMAGE; MATRIX; TESTS
AB The adhesive strength and repair efficiency of bisphenol E cyanate ester (BECy) is investigated for the injection repair of high temperature polymer-matrix composites (PMCs) by lap shear (LS), short beam shear bending (SBSB), and double-cantilever beam (DCB) tests. Bismaleimide/carbon fiber (BMI-cf) composites were chosen as a model substrate. The BECy resin showed similar strength at room temperature to a benchmark epoxy adhesive and outperformed the epoxy at high temperature (200 degrees C) in all mechanical tests performed. The influence of moisture content of the PMC substrate on the adhesive strength of BECy was systematically investigated. Drying of PMC before repair was necessary for excellent repair performance. Both the flexural strength of repaired SBSB specimens and the inter-laminar fracture toughness of repaired DCB specimens were significantly higher than that of the control composites and stable over a broad temperature range. (C) 2010 Elsevier Ltd. All rights reserved.
C1 [Kessler, Michael R.] Iowa State Univ, Dept Mat Sci & Engn, Ames, IA 50011 USA.
Iowa State Univ, Ames Lab, Ames, IA 50011 USA.
RP Kessler, MR (reprint author), Iowa State Univ, Dept Mat Sci & Engn, Ames, IA 50011 USA.
EM mkessler@iastate.edu
RI Kessler, Michael/C-3153-2008; Thunga, Mahendra/D-4638-2013
OI Kessler, Michael/0000-0001-8436-3447; Thunga,
Mahendra/0000-0002-4856-242X
FU Strategic Environmental Research and Development Program (SERDP)
[WP-1580]
FX Authors gratefully acknowledge the financial support from the Strategic
Environmental Research and Development Program (SERDP) (Project Number
WP-1580). Special thanks to Warren Straszheim of the Materials Analysis
and Research Laboratory, at Iowa State University) for helping with SEM
investigations.
NR 29
TC 13
Z9 14
U1 4
U2 29
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0266-3538
J9 COMPOS SCI TECHNOL
JI Compos. Sci. Technol.
PD JAN 17
PY 2011
VL 71
IS 2
BP 239
EP 245
DI 10.1016/j.compscitech.2010.11.021
PG 7
WC Materials Science, Composites
SC Materials Science
GA 715SY
UT WOS:000286909100023
ER
PT J
AU Wells, DM
Ringe, E
Kaczorowski, D
Gnida, D
Andre, G
Haire, RG
Ellis, DE
Ibers, JA
AF Wells, Daniel M.
Ringe, Emilie
Kaczorowski, D.
Gnida, D.
Andre, G.
Haire, Richard G.
Ellis, Donald E.
Ibers, James A.
TI Structure, Properties, and Theoretical Electronic Structure of UCuOP and
NpCuOP
SO INORGANIC CHEMISTRY
LA English
DT Article
ID INITIO MOLECULAR-DYNAMICS; TOTAL-ENERGY CALCULATIONS; WAVE BASIS-SET;
MAGNETIC-PROPERTIES; CRYSTAL-STRUCTURE; SINGLE-CRYSTAL;
ELECTRICAL-RESISTIVITY; URANIUM CHALCOGENIDES; TRANSPORT-PROPERTIES;
NEUTRON-DIFFRACTION
AB The compounds UCuOP and NpCuOP have been synthesized and their crystal structures were determined from low-temperature single-crystal X-ray data. These isostructural compounds crystallize with two formula units in space group P4/nmm of the tetragonal system. Each An atom (An = U or Np) is coordinated to four O and four P atoms in a distorted square antiprism; each Cu atom is coordinated to four P atoms in a distorted tetrahedron. Magnetic susceptibility measurements on crushed single crystals indicate that UCuOP orders antiferromagnetically at 224(2) K. Neutron diffraction experiments at 100 and 228 K show the magnetic structure of UCuOP to be type AFI (+ - + -) where ferromagnetically aligned sheets of U atoms in the (001) plane order antiferromagnetically along [001]. The electrical conductivity of UCuOP exhibits metallic character. Its electrical resistivity measured in the ordered region with he current flowing within the tetragonal plane is governed by the scattering of the conduction electrons on antiferromagnetic spin-wave excitations. The electrical resistivity of single-crystalline NpCuOP shows semimetallic character. It 5 dominated by a pronounced hump at low temperatures, which likely arises owing to long-range magnetic ordering below about 90 K. Density of state analyses using the local spin-density approximation show covalent overlap between AnO and CuP layers of the structure and dominant contributions from 5f-actinide orbitals at the Fermi level. Calculations on a 2 x 2 x 2 supercell of NpCuOP show ferromagnetic ordering within the Np sheets and complex coupling between these planes. Comparisons of the physical properties of these AnCuOP compounds are made with those of the family of related tetragonal uranium phosphide compounds.
C1 [Wells, Daniel M.; Ringe, Emilie; Ellis, Donald E.; Ibers, James A.] Northwestern Univ, Dept Chem, Evanston, IL 60208 USA.
[Wells, Daniel M.; Ellis, Donald E.] Northwestern Univ, Mat Res Ctr, Evanston, IL 60208 USA.
[Kaczorowski, D.; Gnida, D.] Polish Acad Sci, Inst Low Temp & Struct Res, PL-50950 Wroclaw, Poland.
[Andre, G.] CE Saclay, Lab Leon Brillouin, F-91191 Gif Sur Yvette, France.
[Haire, Richard G.] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA.
[Ellis, Donald E.] Northwestern Univ, Dept Phys & Astron, Evanston, IL 60208 USA.
RP Ibers, JA (reprint author), Northwestern Univ, Dept Chem, 2145 Sheridan Rd, Evanston, IL 60208 USA.
EM ibers@chem.northwestern.edu
RI Kaczorowski, Dariusz/M-6572-2014
FU U.S. Department of Energy, Basic Energy Sciences, Chemical Sciences,
Biosciences, and Geosciences Division and Division of Materials Sciences
and Engineering [ER-15522]; MRSEC of the National Science Foundation
[DMR-0520513]; National Science Foundation [DMR-0520513]
FX We are grateful for the support of Dr. L. Soderholm and Dr. S.
Skanthakumar of the Actinide Facility of Argonne National Laboratory
where we performed the neptunium synthetic work. We are also grateful to
Dr. Geng Bang Jin at Northwestern University and Argonne National
Laboratory and George Oh at Northwestern University for their help. The
research at Northwestern University was kindly supported by the U.S.
Department of Energy, Basic Energy Sciences, Chemical Sciences,
Biosciences, and Geosciences Division and Division of Materials Sciences
and Engineering Grant ER-15522. D.M.W. acknowledges partial support from
the MRSEC program of the National Science Foundation (DMR-0520513). Use
was made of the Materials Research Science and Engineering Center,
Magnet and Low Temperature Facility supported by the National Science
Foundation (DMR-0520513).
NR 83
TC 3
Z9 3
U1 1
U2 14
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0020-1669
J9 INORG CHEM
JI Inorg. Chem.
PD JAN 17
PY 2011
VL 50
IS 2
BP 576
EP 589
DI 10.1021/ic101665g
PG 14
WC Chemistry, Inorganic & Nuclear
SC Chemistry
GA 703EJ
UT WOS:000285956600026
PM 21158457
ER
PT J
AU Dai, Q
Shan, QF
Cho, J
Schubert, EF
Crawford, MH
Koleske, DD
Kim, MH
Park, Y
AF Dai, Qi
Shan, Qifeng
Cho, Jaehee
Schubert, E. Fred
Crawford, Mary H.
Koleske, Daniel D.
Kim, Min-Ho
Park, Yongjo
TI On the symmetry of efficiency-versus-carrier-concentration curves in
GaInN/GaN light-emitting diodes and relation to droop-causing mechanisms
SO APPLIED PHYSICS LETTERS
LA English
DT Article
AB The internal quantum efficiency (IQE)-versus-carrier-concentration (n) curves of GaN-based light-emitting diodes have been frequently described by the ABC model: IQE=Bn-2/(An+Bn-2 +Cn(3)). We show that this model predicts IQE-versus-n curves that have even symmetry. Phase-space filling makes the B and C coefficients concentration-dependent. We also show that IQE-versus-n curves that take into account phase-space filling possess even symmetry. In contrast, experimental IQE-versus-n curves exhibit asymmetry. The asymmetry requires a fourth-power or higher-power contribution to the recombination rate and provides insight into the mathematical form of the droop-causing mechanisms. (c) 2011 American Institute of Physics. [doi:10.1063/1.3544584]
C1 [Dai, Qi; Shan, Qifeng; Cho, Jaehee; Schubert, E. Fred] Rensselaer Polytech Inst, Dept Phys Appl Phys & Astron, Troy, NY 12180 USA.
[Dai, Qi; Shan, Qifeng; Cho, Jaehee; Schubert, E. Fred] Rensselaer Polytech Inst, Dept Elect Comp & Syst Engn, Troy, NY 12180 USA.
[Crawford, Mary H.; Koleske, Daniel D.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
[Kim, Min-Ho; Park, Yongjo] Samsung LED, R&D Inst, Suwon 443743, South Korea.
RP Dai, Q (reprint author), Rensselaer Polytech Inst, Dept Phys Appl Phys & Astron, Troy, NY 12180 USA.
EM efschubert@rpi.edu
RI Cho, Jaehee/H-3506-2013
OI Cho, Jaehee/0000-0002-8794-3487
FU Sandia's Solid-State Lighting Science Center; U.S. Department of Energy
Office of Basic Energy Sciences; Sandia Corporation, a wholly owned
subsidiary of Lockheed Martin Co.; U.S. Department of Energy's National
Nuclear Security Administration [DE-AC0494AL85000]
FX Sandia authors and Q.D., Q.S., and J.C. were supported by Sandia's
Solid-State Lighting Science Center, an Energy Frontier Research Center
funded by the U.S. Department of Energy Office of Basic Energy Sciences.
Sandia is a multiprogram laboratory managed and operated by Sandia
Corporation, a wholly owned subsidiary of Lockheed Martin Co., for the
U.S. Department of Energy's National Nuclear Security Administration
under Contract No. DE-AC0494AL85000. The RPI authors gratefully thank
Samsung LED, the National Science Foundation, New York State, Crystal
IS, and Troy Research Corporation for support of E.F.S., M.H.K., Y.P.,
and RPI facilities.
NR 16
TC 36
Z9 36
U1 1
U2 31
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0003-6951
J9 APPL PHYS LETT
JI Appl. Phys. Lett.
PD JAN 17
PY 2011
VL 98
IS 3
AR 033506
DI 10.1063/1.3544584
PG 3
WC Physics, Applied
SC Physics
GA 709WC
UT WOS:000286471100049
ER
PT J
AU Buchowicz, G
Stone, PR
Robinson, JT
Cress, CD
Beeman, JW
Dubon, OD
AF Buchowicz, Grant
Stone, Peter R.
Robinson, Jeremy T.
Cress, Cory D.
Beeman, Jeffrey W.
Dubon, Oscar D.
TI Correlation between structure and electrical transport in ion-irradiated
graphene grown on Cu foils
SO APPLIED PHYSICS LETTERS
LA English
DT Article
ID AMORPHOUS-CARBON; DEFECTS; FILMS
AB Graphene grown by chemical vapor deposition and supported on SiO2 and sapphire substrates was studied following the controlled introduction of defects induced by 35 keV carbon ion irradiation. Changes in Raman spectra for fluences ranging from 10(12) to 10(15) cm(-2) indicate that the structure of graphene evolves from a highly ordered layer, to a patchwork of disordered domains, to an essentially amorphous film. These structural changes result in a dramatic decrease in the Hall mobility by orders of magnitude while, remarkably, the Hall concentration remains almost unchanged, suggesting that the Fermi level is pinned at a hole concentration near 1 x 10(13) cm(-2). A model for scattering by resonant scatterers is in good agreement with mobility measurements up to an ion fluence of 1 x 10(14) cm(-2). (C) 2011 American Institute of Physics. [doi:10.1063/1.3536529]
C1 [Buchowicz, Grant; Stone, Peter R.; Beeman, Jeffrey W.; Dubon, Oscar D.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
[Buchowicz, Grant; Stone, Peter R.; Dubon, Oscar D.] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA.
[Robinson, Jeremy T.; Cress, Cory D.] USN, Res Lab, Washington, DC 20375 USA.
RP Buchowicz, G (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
EM oddubon@berkeley.edu
RI Robinson, Jeremy/F-2748-2010;
OI Cress, Cory/0000-0001-7563-6693
FU Office of Science, Office of Basic Energy Sciences, and Division of
Materials Sciences and Engineering of the U.S. Department of Energy
[De-Ac02-05Ch11231]; National Science Foundation [DMR-0349257]; Office
of Naval Research; Defense Threat Reduction Agency under MIPR
[10-2197M]; NRL's Nanoscience Institute
FX The work at the Lawrence Berkeley National Laboratory (ion irradiation
and electrical characterization of graphene on SiO2) was
supported by the Director, Office of Science, Office of Basic Energy
Sciences, and Division of Materials Sciences and Engineering of the U.S.
Department of Energy under Contract No. De-Ac02-05Ch11231. O.D.D.
acknowledges support from the National Science Foundation under Contract
No. DMR-0349257 for electrical measurements of graphene on sapphire.
This work was supported in part by the Office of Naval Research, NRL's
Nanoscience Institute, and the Defense Threat Reduction Agency under
MIPR Grant No. 10-2197M.
NR 21
TC 26
Z9 27
U1 3
U2 22
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0003-6951
J9 APPL PHYS LETT
JI Appl. Phys. Lett.
PD JAN 17
PY 2011
VL 98
IS 3
AR 032102
DI 10.1063/1.3536529
PG 3
WC Physics, Applied
SC Physics
GA 709WC
UT WOS:000286471100020
ER
PT J
AU Sun, N
Liu, LV
Dey, A
Villar-Acevedo, G
Kovacs, JA
Darensbourg, MY
Hodgson, KO
Hedman, B
Solomon, EI
AF Sun, Ning
Liu, Lei V.
Dey, Abhishek
Villar-Acevedo, Gloria
Kovacs, Julie A.
Darensbourg, Marcetta Y.
Hodgson, Keith O.
Hedman, Britt
Solomon, Edward I.
TI S K-Edge X-Ray Absorption Spectroscopy and Density Functional Theory
Studies of High and Low Spin {FeNO}(7) Thiolate Complexes: Exchange
Stabilization of Electron Delocalization in {FeNO}(7) and {FeO2}(8)
SO INORGANIC CHEMISTRY
LA English
DT Article
ID MOLECULAR WAVE FUNCTIONS; ISOPENICILLIN-N-SYNTHASE; MULTIREFERENCE
AB-INITIO; TRANSITION-METAL DIMERS; NITRIC-OXIDE BINDING; IRON-OXYGEN
BOND; POPULATION ANALYSIS; ACTIVE-SITE; SUPEROXIDE REDUCTASE; SULFUR-K
AB S K-edge X-ray absorption spectroscopy (XAS) is a direct experimental probe of metal ion electronic structure as the pre-edge energy reflects its oxidation state, and the energy splitting pattern of the pre-edge transitions reflects its spin state. The combination of sulfur K-edge XAS and density functional theory (DFT) calculations indicates that the electronic structures of {FeNO}(7) (S = 3/2) ((SN4)-N-Me2(tren)Fe(NO), complex I) and {FeNO}(7) (S = 1/2) ((bme-daco)Fe(NO), complex II) are Fe-III(S = 5/2)-NO-(S = 1) and Fe-III(S = 3/2)-NO-(S = 1), respectively. When an axial ligand is computationally added to complex II, the electronic structure becomes Fe-II(S = 0)-NO center dot(S = 1/2). These studies demonstrate hoe the ligand field of the Fe center defines its spin state and thus changes the electron exchange, an important factor in determining the electron distribution over {FeNO}(7) and {FeO2}(8) sites.
C1 [Sun, Ning; Liu, Lei V.; Dey, Abhishek; Hodgson, Keith O.; Solomon, Edward I.] Stanford Univ, Dept Chem, Stanford, CA 94305 USA.
[Villar-Acevedo, Gloria; Kovacs, Julie A.] Univ Washington, Dept Chem, Seattle, WA 98195 USA.
[Darensbourg, Marcetta Y.] Texas A&M Univ, Dept Chem, College Stn, TX 77843 USA.
[Hodgson, Keith O.; Hedman, Britt; Solomon, Edward I.] Stanford Univ, SLAC, Menlo Pk, CA 94025 USA.
RP Hodgson, KO (reprint author), Stanford Univ, Dept Chem, Stanford, CA 94305 USA.
EM edward.solomon@stanford.edu
RI Liu, Lei/H-4942-2011; Dey, Abhishek/D-2825-2013; Darensbourg,
Marcetta/O-5093-2014; Kovacs, Julie/G-5792-2015
OI Dey, Abhishek/0000-0002-9166-3349; Darensbourg,
Marcetta/0000-0002-0070-2075; Kovacs, Julie/0000-0003-2358-1269
FU NIH [GM40392, RO1 GM45881-18]; NSF [CHE 01-11629, 09-10679]; Department
of Energy, Office of Basic Energy Sciences; National Institutes of
Health, National Center for Research Resources; Department of Energy,
Office of Biological and Environmental Research; National Center for
Research Resources (NCRR) [5 P41 RR001209]; Larry Yung Stanford Graduate
Fellowship
FX This research was supported by NIH GM40392 (E.I.S.), RO1 GM45881-18
(J.A.K.), and NSF CHE 01-11629 and 09-10679 (M.Y.D.). SSRL operations
are supported by the Department of Energy, Office of Basic Energy
Sciences. The SSRL Structural Molecular Biology Program is supported by
the National Institutes of Health, National Center for Research
Resources, Biomedical Technology Program, and by the Department of
Energy, Office of Biological and Environmental Research. This
publication was made possible by Grant 5 P41 RR001209 from the National
Center for Research Resources (NCRR), a component of the National
Institutes of Health (NIH). Its contents are solely the responsibility
of the authors and do not necessarily represent the official view of
NCRR or NIH. L.V.L. is supported by a Larry Yung Stanford Graduate
Fellowship. Yang Ha is thanked for assistance in the revision of the
manuscript.
NR 72
TC 21
Z9 21
U1 2
U2 24
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0020-1669
J9 INORG CHEM
JI Inorg. Chem.
PD JAN 17
PY 2011
VL 50
IS 2
BP 427
EP 436
DI 10.1021/ic1006378
PG 10
WC Chemistry, Inorganic & Nuclear
SC Chemistry
GA 703EJ
UT WOS:000285956600011
PM 21158471
ER
PT J
AU Sethi, DK
Schubert, DA
Anders, AK
Heroux, A
Bonsor, DA
Thomas, CP
Sundberg, EJ
Pyrdol, J
Wucherpfennig, KW
AF Sethi, Dhruv K.
Schubert, David A.
Anders, Anne-Kathrin
Heroux, Annie
Bonsor, Daniel A.
Thomas, Chantz P.
Sundberg, Eric J.
Pyrdol, Jason
Wucherpfennig, Kai W.
TI A highly tilted binding mode by a self-reactive T cell receptor results
in altered engagement of peptide and MHC
SO JOURNAL OF EXPERIMENTAL MEDICINE
LA English
DT Article
ID MAJOR HISTOCOMPATIBILITY COMPLEX; MYELIN BASIC-PROTEIN; CLASS-II
MOLECULE; CRYSTAL-STRUCTURE; TRANSGENIC MICE; AMINO-ACIDS; RECOGNITION;
ANTIGEN; SPECIFICITY; AUTOIMMUNITY
AB Self-reactive T cells that escape elimination in the thymus can cause autoimmune pathology, and it is therefore important to understand the structural mechanisms of self-antigen recognition. We report the crystal structure of a T cell receptor (TCR) from a patient with relapsing-remitting multiple sclerosis that engages its self-peptide-major histocompatibility complex (pMHC) ligand in an unusual manner. The TCR is bound in a highly tilted orientation that prevents interaction of the TCR-alpha chain with the MHC class II beta chain helix. In this structure, only a single germline-encoded TCR loop engages the MHC protein, whereas in most other TCR-pMHC structures all four germline-encoded TCR loops bind to the MHC helices. The tilted binding mode also prevents peptide contacts by the short complementarity-determining region (CDR) 3 beta loop, and interactions that contribute to peptide side chain specificity are focused on the CDR3 alpha loop. This structure is the first example in which only a single germline-encoded TCR loop contacts the MHC helices. Furthermore, the reduced interaction surface with the peptide may facilitate TCR cross-reactivity. The structural alterations in the trimolecular complex are distinct from previously characterized self-reactive TCRs, indicating that there are multiple unusual ways for self-reactive TCRs to bind their pMHC ligand.
C1 [Sethi, Dhruv K.; Schubert, David A.; Anders, Anne-Kathrin; Thomas, Chantz P.; Pyrdol, Jason; Wucherpfennig, Kai W.] Harvard Univ, Sch Med, Dept Canc Immunol & AIDS, Dana Farber Canc Inst, Boston, MA 02115 USA.
[Anders, Anne-Kathrin; Wucherpfennig, Kai W.] Harvard Univ, Sch Med, Program Immunol, Boston, MA 02115 USA.
[Heroux, Annie] Brookhaven Natl Lab, Dept Biol, Upton, NY 11973 USA.
[Bonsor, Daniel A.; Sundberg, Eric J.] Boston Biomed Res Inst, Watertown, MA 02472 USA.
RP Wucherpfennig, KW (reprint author), Harvard Univ, Sch Med, Dept Canc Immunol & AIDS, Dana Farber Canc Inst, Boston, MA 02115 USA.
EM kai_wucherpfennig@dfci.harvard.edu
FU National Institutes of Health [P01 AI045757, R01 AI064177]; National
Multiple Sclerosis Society; Cancer Research Institute; Offices of
Biological and Environmental Research and of Basic Energy Sciences of
the US Department of Energy; National Center for Research Resources of
the National Institutes of Health
FX This work was supported by grants from the National Institutes of Health
(P01 AI045757 and R01 AI064177 to K.W. Wucherpfennig) and postdoctoral
fellowships from the National Multiple Sclerosis Society (to D.K. Sethi)
and the Cancer Research Institute (to D. A. Schubert). Data were
collected at beamline X29 of the National Synchrotron Light Source.
Financial support for the National Synchrotron Light Source comes
principally from the Offices of Biological and Environmental Research
and of Basic Energy Sciences of the US Department of Energy, and from
the National Center for Research Resources of the National Institutes of
Health.
NR 62
TC 49
Z9 50
U1 0
U2 3
PU ROCKEFELLER UNIV PRESS
PI NEW YORK
PA 1114 FIRST AVE, 4TH FL, NEW YORK, NY 10021 USA
SN 0022-1007
J9 J EXP MED
JI J. Exp. Med.
PD JAN 17
PY 2011
VL 208
IS 1
BP 91
EP 102
DI 10.1084/jem.20100725
PG 12
WC Immunology; Medicine, Research & Experimental
SC Immunology; Research & Experimental Medicine
GA 707SV
UT WOS:000286309300008
PM 21199956
ER
PT J
AU Liu, YJ
Andrews, JC
Wang, JY
Meirer, F
Zhu, PP
Wu, ZY
Pianetta, P
AF Liu, Yijin
Andrews, Joy C.
Wang, Junyue
Meirer, Florian
Zhu, Peiping
Wu, Ziyu
Pianetta, Piero
TI Phase retrieval using polychromatic illumination for transmission X-ray
microscopy
SO OPTICS EXPRESS
LA English
DT Article
ID ZONE PLATES; ALGORITHM; OPTICS
AB An alternative method for quantitative phase retrieval in a transmission X-ray microscope system at sub-50-nm resolution is presented. As an alternative to moving the sample in the beam direction in order to analyze the propagation-introduced phase effect, we have illuminated the TXM using X-rays of different energy without any motor movement in the TXM system. Both theoretical analysis and experimental studies have confirmed the feasibility and the advantage of our method, because energy tuning can be performed with very high energy resolution using a double crystal monochromator at a synchrotron beam line, and there is zero motor error in TXM system in our approach. High-spatial-resolution phase retrieval is accomplished using the proposed method. (C) 2011 Optical Society of America
C1 [Liu, Yijin; Andrews, Joy C.; Pianetta, Piero] SLAC Natl Accelerator Lab, Stanford Synchrotron Radiat Lightsource, Menlo Pk, CA 94025 USA.
[Wang, Junyue] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA.
[Meirer, Florian] Fdn Bruno Kessler, I-38050 Povo, Italy.
[Zhu, Peiping; Wu, Ziyu] Inst High Energy Phys, Beijing Synchrotron Radiat Facil, Beijing 100049, Peoples R China.
[Wu, Ziyu] Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230027, Peoples R China.
RP Liu, YJ (reprint author), SLAC Natl Accelerator Lab, Stanford Synchrotron Radiat Lightsource, Menlo Pk, CA 94025 USA.
EM liuyijin@slac.stanford.edu
RI Liu, Yijin/O-2640-2013; Meirer, Florian/H-7642-2016
OI Liu, Yijin/0000-0002-8417-2488; Meirer, Florian/0000-0001-5581-5790
FU NIH/NIBIB [5R01EB004321]; Department of Energy, Office of Basic Energy
Sciences
FX The authors gratefully acknowledge Wenbing Yun, Michael Feser and Juana
Rudati for valuable discussions. Yijin Liu thanks Wendy Mao and Shibing
Wang for providing the sample. The transmission X-ray microscope is
supported by NIH/NIBIB grant number 5R01EB004321. SSRL is supported by
the Department of Energy, Office of Basic Energy Sciences.
NR 28
TC 24
Z9 24
U1 0
U2 14
PU OPTICAL SOC AMER
PI WASHINGTON
PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA
SN 1094-4087
J9 OPT EXPRESS
JI Opt. Express
PD JAN 17
PY 2011
VL 19
IS 2
BP 540
EP 545
DI 10.1364/OE.19.000540
PG 6
WC Optics
SC Optics
GA 707US
UT WOS:000286314600014
PM 21263593
ER
PT J
AU Khachatryan, V
Sirunyan, AM
Tumasyan, A
Adam, W
Bergauer, T
Dragicevic, M
Ero, J
Fabjan, C
Friedl, M
Fruhwirth, R
Ghete, VM
Hammer, J
Hansel, S
Hartl, C
Hoch, M
Hormann, N
Hrubec, J
Jeitler, M
Kasieczka, G
Kiesenhofer, W
Krammer, M
Liko, D
Mikulec, I
Pernicka, M
Rohringer, H
Schofbeck, R
Strauss, J
Taurok, A
Teischinger, F
Waltenberger, W
Walzel, G
Widl, E
Wulz, CE
Mossolov, V
Shumeiko, N
Gonzalez, JS
Benucci, L
Ceard, L
De Wolf, EA
Janssen, X
Maes, T
Mucibello, L
Ochesanu, S
Roland, B
Rougny, R
Selvaggi, M
Van Haevermaet, H
Van Mechelen, P
Van Remortel, N
Adler, V
Beauceron, S
Blyweert, S
D'Hondt, J
Devroede, O
Kalogeropoulos, A
Maes, J
Maes, M
Tavernier, S
Van Doninck, W
Van Mulders, P
Van Onsem, GP
Villella, I
Charaf, O
Clerbaux, B
De Lentdecker, G
Dero, V
Gay, APR
Hammad, GH
Hreus, T
Marage, RE
Thomas, L
Velde, CV
Vanlaer, R
Wickens, J
Costantini, S
Grunewald, M
Klein, B
Marinov, A
Ryckbosch, D
Thyssen, F
Tytgat, M
Vanelderen, L
Verwilligen, R
Walsh, S
Zaganidis, N
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CA CMS Collaboration
TI First measurement of the cross section for top-quark pair production in
proton-proton collisions at root s=7 TeV
SO PHYSICS LETTERS B
LA English
DT Article
DE CMS; LHC; Physics; Top quark; Cross section
AB The first measurement of the cross section for top-quark pair production in pp collisions at the Large Hadron Collider at center-of-mass energy root s = 7 TeV has been performed using a data sample corresponding to an integrated luminosity of 3.1 +/- 0.3 pb(-1) recorded by the CMS detector. This result utilizes the final state with two isolated, highly energetic charged leptons, large missing transverse energy, and two or more jets. Backgrounds from Drell-Yan and non-W/Z boson production are estimated from data. Eleven events are observed in the data with 2.1 +/- 1.0 events expected from background. The measured cross section is 194 +/- 72(stat.) +/- 24(syst.) +/- 21(lumi.) pb, consistent with next-to-leading order predictions. (C) 2010 CERN. Published by Elsevier B.V. All rights reserved.
C1 [Azzurri, P.; Bagliesi, G.; Bernardini, J.; Boccali, T.; Broccolo, G.; Castaldi, R.; D'Agnolo, R. T.; Dell'Orso, R.; Fiori, F.; Foa, L.; Giassi, A.; Kraan, A.; Ligabue, F.; Lomtadze, T.; Martini, L.; Messineo, A.; Palla, F.; Palmonari, F.; Sarkar, S.; Segneri, G.; Serban, A. T.; Spagnolo, P.; Tenchini, R.; Tonelli, G.; Venturi, A.; Verdini, P. C.] Ist Nazl Fis Nucl, Sez Pisa, Pisa, Italy.
[Bernardini, J.; Fiori, F.; Messineo, A.; Tonelli, G.] Univ Pisa, Pisa, Italy.
[Azzurri, P.; Broccolo, G.; D'Agnolo, R. T.; Foa, L.; Ligabue, F.; Sarkar, S.] Scuola Normale Super Pisa, Pisa, Italy.
[Khachatryan, V.; Sirunyan, A. M.; Tumasyan, A.] Yerevan Phys Inst, Yerevan 375036, Armenia.
[Adam, W.; Bergauer, T.; Dragicevic, M.; Eroe, J.; Fabjan, C.; Friedl, M.; Fruehwirth, R.; Ghete, V. M.; Hammer, J.; Haensel, S.; Hartl, C.; Hoch, M.; Hoermann, N.; Hrubec, J.; Jeitler, M.; Kasieczka, G.; Kiesenhofer, W.; Krammer, M.; Liko, D.; Mikulec, I.; Pernicka, M.; Rohringer, H.; Schoefbeck, R.; Strauss, J.; Taurok, A.; Teischinger, F.; Waltenberger, W.; Walzel, G.; Widl, E.; Wulz, C. -E.] Inst Hochenergiephys OeAW, Vienna, Austria.
[Mossolov, V.; Shumeiko, N.; Gonzalez, J. Suarez] Natl Ctr Particle & High Energy Phys, Minsk, Byelarus.
[Benucci, L.; Ceard, L.; De Wolf, E. A.; Janssen, X.; Maes, T.; Mucibello, L.; Ochesanu, S.; Roland, B.; Rougny, R.; Selvaggi, M.; Van Haevermaet, H.; Van Mechelen, P.; Van Remortel, N.] Univ Antwerp, Antwerp, Belgium.
[Adler, V.; Beauceron, S.; Blyweert, S.; D'Hondt, J.; Devroede, O.; Kalogeropoulos, A.; Maes, J.; Maes, M.; Tavernier, S.; Van Doninck, W.; Van Mulders, P.; Van Onsem, G. P.; Villella, I.] Vrije Univ Brussel, Brussels, Belgium.
[Charaf, O.; Clerbaux, B.; De Lentdecker, G.; Dero, V.; Gay, A. P. R.; Hammad, G. H.; Hreus, T.; Marage, R. E.; Thomas, L.; Velde, C. Vander; Vanlaer, R.; Wickens, J.] Univ Libre Brussels, Brussels, Belgium.
[Costantini, S.; Grunewald, M.; Klein, B.; Marinov, A.; Ryckbosch, D.; Thyssen, F.; Tytgat, M.; Vanelderen, L.; Verwilligen, R.; Walsh, S.; Zaganidis, N.] Univ Ghent, B-9000 Ghent, Belgium.
[Basegmez, S.; Bruno, G.; Caudron, J.; De Jeneret, J. De Favereau; Delaere, C.; Demin, P.; Favart, D.; Giammanco, A.; Gregoire, G.; Hollar, J.; Lemaitre, V.; Liao, J.; Militaru, O.; Ovyn, S.; Pagano, D.; Pin, A.; Piotrzkowski, K.; Quertenmont, L.; Schul, N.] Catholic Univ Louvain, B-1348 Louvain, Belgium.
[Beliy, N.; Caebergs, T.; Daubie, E.] Univ Mons, B-7000 Mons, Belgium.
[Alves, G. A.; De Jesus Damiao, D.; Pol, M. E.; Souza, M. H. G.] Ctr Brasileiro Pesquisas Fis, Rio De Janeiro, Brazil.
[Carvalho, W.; Da Costa, E. M.; De Oliveira Martins, C.; Fonseca De Souza, S.; Mundim, L.; Nogima, H.; Oguri, V.; Otalora Goicochea, J. M.; Prado Da Silva, W. L.; Santoro, A.; Silva Do Amaral, S. M.; Sznajder, A.; Torres Da Silva De Araujo, F.] Univ Estado Rio de Janeiro, BR-20550011 Rio De Janeiro, Brazil.
[Dias, F. A.; Dias, M. A. F.; Fernandez Perez Tomei, T. R.; Gregores, E. M.; Marinho, F.; Novaes, S. F.; Padula, Sandra S.] Univ Estadual Paulista, Inst Fis Teor, BR-01405 Sao Paulo, Brazil.
[Darmenov, N.; Dimitrov, L.; Genchev, V.; Iaydjiev, P.; Piperov, S.; Rodozov, M.; Stoykova, S.; Sultanov, G.; Tcholakov, V.; Trayanov, R.; Vankov, I.] Bulgarian Acad Sci, Inst Nucl Res & Nucl Energy, Sofia, Bulgaria.
[Dyulendarova, M.; Hadjiiska, R.; Kozhuharov, V.; Litov, L.; Marinova, E.; Mateev, M.; Pavlov, B.; Petkov, P.] Univ Sofia, BU-1126 Sofia, Bulgaria.
[Bian, J. G.; Chen, G. M.; Chen, H. S.; Jiang, C. H.; Liang, D.; Liang, S.; Wang, J.; Wang, X.; Wang, Z.; Yang, M.; Zang, J.; Zhang, Z.] Inst High Energy Phys, Beijing 100039, Peoples R China.
[Ban, Y.; Guo, S.; Hu, Z.; Li, W.; Mao, Y.; Qian, S. J.; Teng, H.; Zhu, B.] Peking Univ, State Key Lab Nucl Phys & Tech, Beijing 100871, Peoples R China.
[Cabrera, A.; Gomez Moreno, B.; Ocampo Rios, A. A.; Osorio Oliveros, A. F.; Sanabria, J. C.] Univ Los Andes, Bogota, Colombia.
[Godinovic, N.; Lelas, D.; Lelas, K.; Plestina, R.; Polic, D.; Puljak, I.] Tech Univ Split, Split, Croatia.
[Antunovic, Z.; Dzelalija, M.] Univ Split, Split, Croatia.
[Brigljevic, V.; Duric, S.; Kadija, K.; Morovic, S.] Rudjer Boskovic Inst, Zagreb, Croatia.
[Attikis, A.; Fereos, R.; Galanti, M.; Mousa, J.; Nicolaou, C.; Ptochos, F.; Razis, P. A.; Rykaczewski, H.] Univ Cyprus, Nicosia, Cyprus.
[Abdel-basit, A.; Assran, Y.; Mahmoud, M. A.] Egyptian Network High Energy Phys, Acad Sci Res & Technol Arab Republ Egypt, Cairo, Egypt.
[Hektor, A.; Kadastik, M.; Kannike, K.; Muentel, M.; Raidal, M.; Rebane, L.] NICPB, Tallinn, Estonia.
[Azzolini, V.; Eerola, P.] Univ Helsinki, Dept Phys, Helsinki, Finland.
[Czellar, S.; Harkonen, J.; Heikkinen, A.; Karimaki, V.; Kinnunen, R.; Klem, J.; Kortelainen, M. J.; Lampen, T.; Lassila-Perini, K.; Lehti, S.; Linden, T.; Luukka, P.; Maenpaa, T.; Tuominen, E.; Tuominiemi, J.; Tuovinen, E.; Ungaro, D.; Wendland, L.] Helsinki Inst Phys, Helsinki, Finland.
[Banzuzi, K.; Korpela, A.; Tuuva, T.] Lappeenranta Univ Technol, Lappeenranta, Finland.
[Sillou, D.] Lab Annecy Le Vieux Phys Particules, IN2P3 CNRS, F-74941 Annecy Le Vieux, France.
[Besancon, M.; Dejardin, M.; Denegri, D.; Fabbro, B.; Faure, J. L.; Ferri, F.; Ganjour, S.; Gentit, F. X.; Givernaud, A.; Gras, P.; de Monchenault, G. Hamel; Jarry, P.; Locci, E.; Malcles, J.; Marionneau, M.; Millischer, L.; Rander, J.; Rosowsky, A.; Titov, M.; Verrecchia, R.] CEA Saclay, DSM IRFU, F-91191 Gif Sur Yvette, France.
[Plestina, R.; Baffioni, S.; Bianchini, L.; Bluj, M.; Broutin, C.; Busson, P.; Charlot, C.; Dobrzynski, L.; de Cassagnac, R. Granier; Haguenauer, M.; Mine, P.; Mironov, C.; Ochando, C.; Paganini, P.; Sabes, D.; Salerno, R.; Sirois, Y.; Thiebaux, C.; Wyslouch, B.; Zabi, A.; Beaudette, F.; Bernet, C.] Ecole Polytech, IN2P3 CNRS, Lab Leprince Ringuet, Palaiseau, France.
[Agram, J. -L.; Andrea, J.; Besson, A.; Bloch, D.; Bodin, D.; Brom, J. -M.; Cardaci, M.; Chabert, E. C.; Collard, C.; Conte, E.; Drouhin, F.; Ferro, C.; Fontaine, J. -C.; Gele, D.; Goerlach, U.; Greder, S.; Juillot, P.; Karim, M.; Le Bihan, A. -C.; Mikami, Y.; Van Hove, P.] Univ Haute Alsace Mulhouse, CNRS IN2P3, Univ Strasbourg, Inst Pluridisciplinaire Hubert Curien, Strasbourg, France.
[Fassi, F.; Mercier, D.] Inst Natl Phys Nucl & Phys Particules IN2P3, Ctr Calcul, Villeurbanne, France.
[Baty, C.; Beaupere, N.; Bedjidian, M.; Bondu, O.; Boudoul, G.; Boumediene, D.; Brun, H.; Chanon, N.; Chierici, R.; Contardo, D.; Depasse, P.; El Mamouni, H.; Falkiewicz, A.; Fay, J.; Gascon, S.; Ille, B.; Kurca, T.; Le Grand, T.; Lethuillier, M.; Mirabito, L.; Perries, S.; Sordini, V.; Tosi, S.; Tschudi, Y.; Verdier, P.; Xiao, H.] Univ Lyon 1, Inst Phys Nucl Lyon, CNRS IN2P3, Villeurbanne, France.
[Roinishvili, V.] Georgian Acad Sci, E Andronikashvili Inst Phys, GE-380060 Tbilisi, Rep of Georgia.
[Kim, H.; Choi, M.; Kang, S.; Park, C.; Park, I. C.; Park, S.; Ryu, G.] Univ Seoul, Seoul, South Korea.
[Choi, Y.; Choi, Y. K.; Goh, J.; Lee, J.; Lee, S.; Seo, H.; Yu, I.] Sungkyunkwan Univ, Suwon, South Korea.
[Bilinskas, M. J.; Grigelionis, I.; Janulis, M.; Martisiute, D.; Petrov, P.; Sabonis, T.] Vilnius Univ, Vilnius, Lithuania.
[Castilla Valdez, H.; De La Cruz Burelo, E.; Lopez-Fernandez, R.; Sanchez Hernandez, A.; Villasenor-Cendejas, L. M.] IPN, Ctr Invest & Estudios Avanzados, Mexico City 07738, DF, Mexico.
[Carrillo Moreno, S.; Vazquez Valencia, F.] Univ Iberoamer, Mexico City, DF, Mexico.
[Salazar Ibarguen, H. A.] Benemerita Univ Autonoma Puebla, Puebla, Mexico.
[Casimiro Linares, E.; Morelos Pineda, A.; Reyes-Santos, M. A.] Univ Autonoma San Luis Potosi, San Luis Potosi, Mexico.
[Andreev, Yu; Gninenko, S.; Golubev, N.; Kirsanov, M.; Krasnikov, N.; Matveev, V.; Pashenkov, A.; Toropin, A.; Troitsky, S.; Musienko, Y.] Russian Acad Sci, Inst Nucl Res, Moscow, Russia.
[Epshteyn, V.; Gavrilov, V.; Kaftanov, V.; Kossov, M.; Krokhotin, A.; Lychkovskaya, N.; Safronov, G.; Semenov, S.; Shreyber, I.; Stolin, V.; Vlasov, E.; Zhokin, A.; Starodumov, A.; Nikitenko, A.] Inst Theoret & Expt Phys, Moscow 117259, Russia.
[Zhukov, V.; Boos, E.; Dubinin, M.; Dudko, L.; Ershov, A.; Gribushin, A.; Kodolova, O.; Lokhtin, I.; Obraztsov, S.; Petrushanko, S.; Sarycheva, L.; Savrin, V.; Snigirev, A.] Moscow MV Lomonosov State Univ, Moscow, Russia.
[Andreev, V.; Azarkin, M.; Dremin, I.; Kirakosyan, M.; Rusakov, S. V.; Vinogradov, A.] PN Lebedev Phys Inst, Moscow 117924, Russia.
[Azhgirey, I.; Bitioukov, S.; Grishin, V.; Kachanov, V.; Konstantinov, D.; Korablev, A.; Krychkine, V.; Petrov, V.; Ryutin, R.; Slabospitsky, S.; Sobol, A.; Tourtchanovitch, L.; Troshin, S.; Tyurin, N.; Uzunian, A.; Volkov, A.] Inst High Energy Phys, State Res Ctr Russian Federat, Protvino, Russia.
[Adzic, P.; Djordjevic, M.; Krpic, D.; Milosevic, J.; Milenovic, P.] Univ Belgrade, Fac Phys, Belgrade 11001, Serbia.
[Adzic, P.; Djordjevic, M.; Krpic, D.; Milosevic, J.; Milenovic, P.] Univ Belgrade, Vinca Inst Nucl Sci, Belgrade, Serbia.
[Aguilar-Benitez, M.; Alcaraz Maestre, J.; Arce, P.; Battilana, C.; Calvo, E.; Cepeda, M.; Cerrada, M.; Colino, N.; De La Cruz, B.; Diez Pardos, C.; Fernandez Bedoya, C.; Fernandez Ramos, J. P.; Ferrando, A.; Flix, J.; Fouz, M. C.; Garcia-Abia, P.; Gonzalez Lopez, S.; Goy Lopez, S.; Hernandez, J. M.; Josa, M. I.; Merino, G.; Puerta Pelayo, J.; Redondo, I.; Romero, L.; Santaolalla, J.; Willmott, C.] Ctr Invest Energet Medioambientales & Tecnol CIEM, Madrid, Spain.
[Albajar, C.; Codispoti, G.; de Troconiz, J. F.] Univ Autonoma Madrid, Madrid, Spain.
[Cuevas, J.; Fernandez Menendez, J.; Folgueras, S.; Gonzalez Caballero, I.; Lloret Iglesias, L.; Vizan Garcia, J. M.] Univ Oviedo, Oviedo, Spain.
[Cabrillo, I. J.; Calderon, A.; Chamizo Llatas, M.; Chuang, S. H.; Duarte Campderros, J.; Felcini, M.; Fernandez, M.; Gomez, G.; Gonzalez Sanchez, J.; Gonzalez Suarez, R.; Jorda, C.; Lobelle Pardo, P.; Lopez Virto, A.; Marco, J.; Marco, R.; Martinez Rivero, C.; Matorras, F.; Piedra Gomez, J.; Rodrigo, T.; Ruiz Jimeno, A.; Scodellaro, L.; Sobron Sanudo, M.; Vila, I.; Vilar Cortabitarte, R.] Univ Cantabria, CSIC, Inst Fis Cantabria IFCA, E-39005 Santander, Spain.
[Darmenov, N.; Genchev, V.; Iaydjiev, P.; Kreuzer, P.; Panagiotou, A.; Hajdu, C.; Sharma, A.; Mohanty, A. K.; Chiorboli, M.; Tropiano, A.; De Guio, F.; Ghezzi, A.; De Cosa, A.; Perrozzi, L.; Lucaroni, A.; Volpe, R.; Boccali, T.; Tonelli, G.; Venturi, A.; Pandolfi, F.; Rahatlou, S.; Botta, C.; Graziano, A.; Pelliccioni, M.; Pereira, A. Vilela; Varela, J.; Kossov, M.; Grishin, V.; Abbaneo, D.; Auffray, E.; Baillon, P.; Ball, A. H.; Barney, D.; Beaudette, F.; Bell, A. J.; Benedetti, D.; Bernet, C.; Bialas, W.; Bloch, P.; Bocci, A.; Bolognesi, S.; Breuker, H.; Brona, G.; Bunkowski, K.; Camporesi, T.; Cano, E.; Cerminara, G.; Christiansen, T.; Perez, J. A. Coarasa; Covarelli, R.; Cure, B.; D'Enterria, D.; Dahms, T.; De Roeck, A.; Elliott-Peisert, A.; Funk, W.; Gaddi, A.; Gennai, S.; Georgiou, G.; Gerwig, H.; Gigi, D.; Gill, K.; Giordano, D.; Glege, F.; Garrido, R. Gomez-Reino; Gouzevitch, M.; Gowdy, S.; Guiducci, L.; Hansen, M.; Harvey, J.; Hegeman, J.; Hegner, B.; Henderson, C.; Hoffmann, H. F.; Honma, A.; Innocente, V.; Janot, P.; Karavakis, E.; Lecoq, P.; Leonidopoulos, C.; Lourenco, C.; Macpherson, A.; Maeki, T.; Malgeri, L.; Mannelli, M.; Masetti, L.; Meijers, F.; Mersi, S.; Meschi, E.; Moser, R.; Mozer, M. U.; Mulders, M.; Nesvold, E.; Orimoto, T.; Orsini, L.; Perez, E.; Petrilli, A.; Pfeiffer, A.; Pierini, M.; Pimiae, M.; Polese, G.; Racz, A.; Rolandi, G.; Rommerskirchen, T.; Rovelli, C.; Rovere, M.; Sakulin, H.; Schaefer, C.; Schwick, C.; Segoni, I.; Siegrist, R.; Simon, M.; Sphicas, P.; Spiga, D.; Spiropulu, M.; Stoeckli, F.; Stoye, M.; Tropea, P.; Tsirou, A.; Tsyganov, A.; Veres, G. I.; Vichoudis, P.; Voutilainen, M.; Zeuner, W. D.; Virdee, T.; Sharma, V.; Hall-Wilton, R.] CERN, European Org Nucl Res, CH-1211 Geneva, Switzerland.
[Bertl, W.; Deiters, K.; Erdmann, W.; Gabathuler, K.; Horisberger, R.; Ingram, Q.; Kaestli, H. C.; Koenig, S.; Kotlinski, D.; Langenegger, U.; Meier, F.; Renker, D.; Rohe, T.; Sibille, J.; Starodumov, A.; Caminada, L.; Marchica, C.] Paul Scherrer Inst, Villigen, Switzerland.
[Weber, M.; Bortignon, P.; Caminada, L.; Chen, Z.; Cittolin, S.; Dissertori, G.; Dittmar, M.; Eugster, J.; Freudenreich, K.; Grab, C.; Herve, A.; Hintz, W.; Lecomte, P.; Lustermann, W.; Marchica, C.; del Arbol, P. Martinez Ruiz; Meridiani, P.; Milenovic, P.; Moortgat, E.; Nardulli, A.; Nef, P.; Nessi-Tedaldi, F.; Pape, L.; Pauss, F.; Punz, T.; Rizzi, A.; Ronga, F. J.; Sala, L.; Sanchez, A. K.; Sawley, M. -C.; Stieger, B.; Tauscher, L.; Thea, A.; Theofilatos, K.; Treille, D.; Urscheler, C.; Wallny, R.; Wehrli, L.; Weng, J.] Swiss Fed Inst Technol, Inst Particle Phys, Zurich, Switzerland.
[Aguilo, E.; Amsler, C.; Chiochia, V.; De Visscher, S.; Favaro, C.; Rikova, M. Ivova; Jaeger, A.; Mejias, B. Millan; Regenfus, C.; Schmidt, P. Robmann A.; Snoek, H.; Wilke, L.] Univ Zurich, Zurich, Switzerland.
[Chang, Y. H.; Chen, K. H.; Chen, W. T.; Dutta, S.; Go, A.; Kuo, C. M.; Li, S. W.; Lin, W.; Liu, M. H.; Liu, Z. K.; Lu, Y. J.; Wu, J. H.; Yu, S. S.] Natl Cent Univ, Chungli, Taiwan.
[Chang, Y. H.; Bartalini, P.; Chang, P.; Chang, Y. W.; Chao, Y.; Chen, K. F.; Hou, W. -S.; Hsiung, Y.; Kao, K. Y.; Lei, Y. J.; Lu, R. -S.; Shiu, J. G.; Tzeng, Y. M.; Wang, M.; Wei, J. T.] Natl Taiwan Univ, Taipei 10764, Taiwan.
[Adiguzel, A.; Bakirci, M. N.; Cerci, S.; Demir, Z.; Dozen, C.; Dumanoglu, I.; Eskut, E.; Girgis, S.; Gokbulut, G.; Gurpinar, E.; Hos, I.; Kangal, E. E.; Karaman, T.; Topaksu, A. Kayis; Nart, A.; Onengut, G.; Ozdemir, K.; Ozturk, S.; Polatoz, A.; Sogut, K.; Tali, B.; Topakli, H.; Uzun, D.; Vergili, L. N.; Vergili, M.; Zorbilmez, C.; Guler, A. M.] Cukurova Univ, Adana, Turkey.
[Akin, I. V.; Aliev, T.; Bilmis, S.; Deniz, M.; Gamsizkan, H.; Guler, A. M.; Ocalan, K.; Ozpineci, A.; Serin, M.; Sever, R.; Surat, U. E.; Yildirim, E.; Zeyrek, M.] Middle E Tech Univ, Dept Phys, TR-06531 Ankara, Turkey.
[Deliomeroglu, M.; Demir, D.; Gulmez, E.; Halu, A.; Isildak, B.; Kaya, M.; Kaya, O.; Ozbek, M.; Ozkorucuklu, S.; Sonmez, N.] Bogazici Univ, Istanbul, Turkey.
[Levchuk, L.] Kharkov Phys & Technol Inst, Natl Sci Ctr, UA-310108 Kharkov, Ukraine.
[Hansen, M.; Bell, P.; Bostock, F.; Brooke, J. J.; Cheng, T. L.; Cussans, D.; Frazier, R.; Goldstein, J.; Grimes, M.; Heath, G. P.; Heath, H. F.; Huckvale, B.; Jackson, J.; Kreczko, L.; Metson, S.; Newbold, D. M.; Nirunpong, K.; Poll, A.; Smith, V. J.; Ward, S.] Univ Bristol, Bristol, Avon, England.
[Newbold, D. M.; Basso, L.; Bell, K. W.; Belyaev, A.; Brew, C.; Brown, R. M.; Camanzi, B.; Cockerill, D. J. A.; Coughlan, J. A.; Harder, K.; Harper, S.; Kennedy, B. W.; Olaiya, E.; Petyt, D.; Radburn-Smith, B. C.; Shepherd-Themistocleous, C. H.; Tomalin, I. R.; Womersley, W. J.; Worm, S. D.] Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England.
[Bainbridge, R.; Ball, G.; Ballin, J.; Beuselinck, R.; Buchmuller, O.; Colling, D.; Cripps, N.; Cutajar, M.; Davies, G.; Della Negra, M.; Fulcher, J.; Futyan, D.; Bryer, A. Guneratne; Hall, G.; Hatherell, Z.; Hays, J.; Iles, G.; Karapostoli, G.; Lyons, L.; Magnan, A. -M.; Marrouche, J.; Nandi, R.; Nash, J.; Nikitenko, A.; Papageorgiou, A.; Pesaresi, M.; Petridis, K.; Pioppi, M.; Raymond, D. M.; Rompotis, N.; Rose, A.; Ryan, M. J.; Seez, C.; Sharp, P.; Sparrow, A.; Tapper, A.; Tourneur, S.; Acosta, M. Vazquez; Virdee, T.; Wakefield, S.; Wardrope, D.; Whyntie, T.] Univ London Imperial Coll Sci Technol & Med, London, England.
[Barrett, M.; Chadwick, M.; Cole, J. E.; Hobson, P. R.; Khan, A.; Kyberd, P.; Leslie, D.; Martin, W.; Reid, I. D.; Teodorescu, L.] Brunel Univ, Uxbridge UB8 3PH, Middx, England.
[Hatakeyama, K.] Baylor Univ, Waco, TX 76798 USA.
[Bose, T.; Jarrin, E. Carrera; Clough, A.; Fantasia, C.; Heister, A.; St John, J.; Lawson, P.; Lazic, D.; Rohlf, J.; Sperka, D.; Sulak, L.] Boston Univ, Boston, MA 02215 USA.
[Bhattacharya, S.; Avetisyan, A.; Chou, J. P.; Cutts, D.; Esen, S.; Ferapontov, A.; Heintz, U.; Jabeen, S.; Kukartsev, G.; Landsberg, G.; Narain, M.; Nguyen, D.; Segala, M.; Speer, T.; Tsang, K. V.] Brown Univ, Providence, RI 02912 USA.
[Borgia, M. A.; Breedon, R.; Sanchez, M. Calderon De La Barca; Cebra, D.; Chertok, M.; Conway, J.; Cox, P. T.; Dolen, J.; Erbacher, R.; Friis, E.; Ko, W.; Kopecky, A.; Lander, R.; Liu, H.; Maruyama, S.; Miceli, T.; Nikolic, M.; Pellett, D.; Robles, J.; Schwarz, T.; Searle, M.; Smith, J.; Squires, M.; Tripathi, M.; Sierra, R. Vasquez; Veelken, C.] Univ Calif Davis, Davis, CA 95616 USA.
[Andreev, V.; Wallny, R.; Arisaka, K.; Cline, D.; Cousins, R.; Deisher, A.; Duris, J.; Erhan, S.; Farrell, C.; Hauser, J.; Ignatenko, M.; Jarvis, C.; Plager, C.; Rakness, G.; Schlein, P.; Tucker, J.; Valuev, V.] Univ Calif Los Angeles, Los Angeles, CA USA.
[Liu, H.; Babb, J.; Clare, R.; Ellison, J.; Gary, J. W.; Giordano, F.; Hanson, G.; Jeng, G. Y.; Kao, S. C.; Liu, F.; Luthra, A.; Nguyen, H.; Pasztor, G.; Satpathy, A.; Shen, B. C.; Stringer, R.; Sturdy, J.; Sumowidagdo, S.; Wilken, R.; Wimpenny, S.] Univ Calif Riverside, Riverside, CA 92521 USA.
[Andrews, W.; Branson, J. G.; Dusinberre, E.; Evans, D.; Golf, F.; Holzner, A.; Kelley, R.; Lebourgeois, M.; Letts, J.; Mangano, B.; Muelmenstaedt, J.; Padhi, S.; Palmer, C.; Petrucciani, G.; Pi, H.; Pieri, M.; Ranieri, R.; Sani, M.; Sharma, V.; Simon, S.; Tu, Y.; Vartak, A.; Wuerthwein, F.; Yagil, A.] Univ Calif San Diego, La Jolla, CA 92093 USA.
[Barge, D.; Bellan, R.; Campagnari, C.; D'Alfonso, M.; Danielson, T.; Geffert, P.; Incandela, J.; Justus, C.; Kalavase, P.; Koay, S. A.; Kovalskyi, D.; Krutelyov, V.; Lowette, S.; Mccoll, N.; Pavlunin, V.; Rebassoo, F.; Ribnik, J.; Richman, J.; Rossin, R.; Stuart, D.; To, W.; Vlimant, J. R.; Witherell, M.] Univ Calif Santa Barbara, Santa Barbara, CA 93106 USA.
[Spiropulu, M.; Bornheim, A.; Bunn, J.; Chen, Y.; Gataullin, M.; Kcira, D.; Litvine, V.; Ma, Y.; Mott, A.; Newman, H. B.; Rogan, C.; Shin, K.; Timciuc, V.; Traczyk, R.; Veverka, J.; Wilkinson, R.; Yang, Y.; Zhu, R. Y.] CALTECH, Pasadena, CA 91125 USA.
[Akgun, B.; Calamba, A.; Carroll, R.; Ferguson, T.; Iiyama, Y.; Jang, D. W.; Jun, S. Y.; Liu, Y. F.; Paulini, M.; Russ, J.; Terentyev, N.; Vogel, H.; Vorobiev, I.] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA.
[Cumalat, J. P.; Dinardo, M. E.; Drell, B. R.; Edelmaier, C. J.; Ford, W. T.; Heyburn, B.; Lopez, E. Luiggi; Nauenberg, U.; Smith, J. G.; Stenson, K.; Ulmer, K. A.; Wagner, S. R.; Zang, S. L.] Univ Colorado, Boulder, CO 80309 USA.
[Agostino, L.; Alexander, J.; Blekman, F.; Chatterjee, A.; Das, S.; Eggert, N.; Fields, L. J.; Gibbons, L. K.; Heltsley, B.; Henriksson, K.; Hopkins, W.; Khukhunaishvili, A.; Kreis, B.; Kuznetsov, V.; Liu, Y.; Kaufman, G. Nicolas; Patterson, J. R.; Puigh, D.; Riley, D.; Ryd, A.; Saelim, M.; Shi, X.; Sun, W.; Teo, W. D.; Thom, J.; Thompson, J.; Vaughan, J.; Weng, Y.; Winstrom, L.; Wittich, P.] Cornell Univ, Ithaca, NY USA.
[Biselli, A.; Cirino, G.; Winn, D.] Fairfield Univ, Fairfield, CT 06430 USA.
[De Jesus Damiao, D.; Sharma, A.; Banerjee, S.; Abdullin, S.; Albrow, M.; Anderson, J.; Apollinari, G.; Atac, M.; Bakken, J. A.; Bauerdick, L. A. T.; Beretvas, A.; Berryhill, J.; Bhat, P. C.; Bloch, I.; Borcherding, F.; Burkett, K.; Butler, J. N.; Chetluru, V.; Cheung, H. W. K.; Chlebana, F.; Cihangir, S.; Demarteau, M.; Eartly, D. P.; Elvira, V. D.; Fisk, I.; Freeman, J.; Gao, Y.; Gottschalk, E.; Green, D.; Gunthoti, K.; Gutsche, O.; Hahn, A.; Hanlon, J.; Harris, R. M.; Hirschauer, J.; Hooberman, B.; James, E.; Jensen, H.; Johnson, M.; Joshi, U.; Khatiwada, R.; Kilminster, B.; Klima, B.; Kousouris, K.; Kunori, S.; Kwan, S.; Limon, P.; Lipton, R.; Lykken, J.; Maeshima, K.; Marraffino, J. M.; Mason, D.; McBride, P.; McCauley, T.; Miao, T.; Mishra, K.; Mrenna, S.; Musienko, Y.; Newman-Holmes, C.; O'Dell, V.; Popescu, S.; Pordes, R.; Prokofyev, O.; Saoulidou, N.; Sexton-Kennedy, E.; Sharma, S.; Soha, A.; Spalding, W. J.; Spiegel, L.; Tan, P.; Taylor, L.; Tkaczyk, S.; Uplegger, L.; Vaandering, E. W.; Vidal, R.; Whitmore, J.; Wu, W.; Yang, F.; Yumiceva, F.; Yun, J. C.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
[Piedra Gomez, J.; Acosta, D.; Avery, P.; Bourilkov, D.; Chen, M.; Di Giovanni, G. P.; Dobur, D.; Drozdetskiy, A.; Field, R. D.; Fisher, M.; Fu, Y.; Furic, I. K.; Gartner, J.; Goldberg, S.; Kim, B.; Klimenko, S.; Konigsberg, J.; Korytov, A.; Kotov, K.; Kropivnitskaya, A.; Kypreos, T.; Matchev, K.; Mitselmakher, G.; Muniz, L.; Pakhotin, Y.; Petterson, M.; Prescott, C.; Remington, R.; Schmitt, M.; Scurlock, B.; Sellers, P.; Skhirtladze, N.; Snowball, M.; Wang, D.; Yelton, J.; Zakaria, M.] Univ Florida, Gainesville, FL USA.
[Ceron, C.; Gaultney, V.; Kramer, L.; Lebolo, L. M.; Linn, S.; Markowitz, P.; Martinez, G.; Mesa, D.; Rodriguez, J. L.] Florida Int Univ, Miami, FL 33199 USA.
[Adams, T.; Askew, A.; Bochenek, J.; Chen, J.; Diamond, B.; Gleyzer, S. V.; Haas, J.; Hagopian, S.; Hagopian, V.; Jenkins, M.; Johnson, K. F.; Prosper, H.; Sekmen, S.; Veeraraghavan, V.] Florida State Univ, Tallahassee, FL 32306 USA.
[Baarmand, M. M.; Dorney, B.; Guragain, S.; Hohlmann, M.; Kalakhety, H.; Ralich, R.; Vodopiyanov, I.] Florida Inst Technol, Melbourne, FL 32901 USA.
[Adams, M. R.; Anghel, I. M.; Apanasevich, L.; Bai, Y.; Bazterra, V. E.; Betts, R. R.; Callner, J.; Cavanaugh, R.; Dragoiu, C.; Garcia-Solis, E. J.; Gerber, C. E.; Hofman, D. J.; Khalatyan, S.; Lacroix, F.; O'Brien, C.; Silvestre, C.; Smoron, A.; Strom, D.; Varelas, N.] UIC, Chicago, IL USA.
[Akgun, U.; Albayrak, E. A.; Bilki, B.; Cankocak, K.; Clarida, W.; Duru, F.; Lae, C. K.; McCliment, E.; Merlo, J. -P.; Mermerkaya, H.; Mestvirishvili, A.; Moeller, A.; Nachtman, J.; Newsom, C. R.; Norbeck, E.; Olson, J.; Onel, Y.; Ozok, F.; Sen, S.; Wetzel, J.; Yetkin, T.; Yi, K.] Univ Iowa, Iowa City, IA USA.
[Barnett, B. A.; Blumenfeld, B.; Bonato, A.; Eskew, C.; Fehling, D.; Giurgiu, G.; Gritsan, A. V.; Guo, Z. J.; Hu, G.; Maksimovic, R.; Rappoccio, S.; Swartz, M.; Tran, N. V.; Whitbeck, A.] Johns Hopkins Univ, Baltimore, MD USA.
[Sibille, J.; Baringer, P.; Bean, A.; Benelli, G.; Grachov, O.; Murray, M.; Noonan, D.; Radicci, V.; Sanders, S.; Wood, J. S.; Zhukova, V.] Univ Kansas, Lawrence, KS 66045 USA.
[Bandurin, D.; Bolton, T.; Chakaberia, I.; Ivanov, A.; Makouski, M.; Maravin, Y.; Shrestha, S.; Svintradze, I.; Wan, Z.] Kansas State Univ, Manhattan, KS 66506 USA.
[Gronberg, J.; Lange, D.; Wright, D.] Lawrence Livermore Natl Lab, Livermore, CA USA.
[Gomez, G.; Baden, A.; Boutemeur, M.; Eno, S. C.; Ferencek, D.; Hadley, Nj.; Kellogg, R. G.; Kirn, M.; Lu, Y.; Mignerey, A. C.; Rossato, K.; Rumerio, P.; Santanastasio, F.; Skuja, A.; Temple, J.; Tonjes, M. B.; Tonwar, S. C.; Twedt, E.] Univ Maryland, College Pk, MD 20742 USA.
[Yang, M.; Li, W.; Wyslouch, B.; Alver, B.; Bauer, G.; Bendavid, J.; Busza, W.; Butz, E.; Cali, I. A.; Chan, M.; Dutta, V.; Everaerts, R.; Ceballos, G. Gomez; Goncharov, M.; Hahn, K. A.; Harris, P.; Kim, Y.; Klute, M.; Lee, Y. -J.; Loizides, C.; Lopez, J.; Luckey, P. D.; Ma, T.; Nahn, S.; Paus, C.; Roland, C.; Roland, G.; Rudolph, M.; Stephans, G. S. F.; Sumorok, K.; Sung, K.; Wenger, E. A.; Xie, S.; Yilmaz, Y.; Yoon, A. S.; Zanetti, M.] MIT, Cambridge, MA USA.
[Cole, P.; Cooper, S. I.; Cushman, P.; Dahmes, B.; De Benedetti, A.; Dudero, P. R.; Franzoni, G.; Haupt, J.; Klapoetke, K.; Kubota, Y.; Mans, J.; Rekovic, V.; Rusack, R.; Sasseville, M.; Singovsky, A.] Univ Minnesota, Minneapolis, MN USA.
[Cremaldi, L. M.; Godang, R.; Kroeger, R.; Perera, L.; Rahmat, R.; Sanders, D. A.; Summers, D.] Univ Mississippi, University, MS 38677 USA.
[Bloom, K.; Bose, S.; Butt, J.; Claes, D. R.; Dominguez, A.; Eads, M.; Keller, J.; Kelly, T.; Kravchenko, I.; Lazo-Flores, J.; Lundstedt, C.; Malbouisson, H.; Malik, S.; Snow, G. R.] Univ Nebraska Lincoln, Lincoln, NE USA.
[Kumar, A.; Baur, U.; Godshalk, A.; Iashvili, I.; Kharchilava, A.; Smith, K.; Zennamo, J.] SUNY Buffalo, Buffalo, NY 14260 USA.
[Alverson, G.; Barberis, E.; Baumgartel, D.; Boeriu, O.; Chasco, M.; Kaadze, K.; Reucroft, S.; Swain, J.; Wood, D.; Zhang, J.] Northeastern Univ, Boston, MA 02115 USA.
[Schmitt, M.; Anastassov, A.; Kubik, A.; Odell, N.; Ofierzynski, R. A.; Pollack, B.; Pozdnyakov, A.; Stoynev, S.; Velasco, M.; Won, S.] Northwestern Univ, Evanston, IL USA.
[Antonelli, L.; Berry, D.; Hildreth, M.; Jessop, C.; Karmgard, D. J.; Kolb, J.; Kolberg, T.; Lannon, K.; Luo, W.; Lynch, S.; Marinelli, N.; Morse, D. M.; Pearson, T.; Ruchti, R.; Slaunwhite, J.; Valls, N.; Warchol, J.; Wayne, M.; Ziegler, J.] Univ Notre Dame, Notre Dame, IN 46556 USA.
[Bylsma, B.; Durkin, L. S.; Gu, J.; Hill, C.; Killewald, P.; Ling, T. Y.; Rodenburg, M.; Williams, G.] Ohio State Univ, Columbus, OH 43210 USA.
[Adam, N.; Berry, E.; Elmer, P.; Gerbaudo, D.; Halyo, V.; Hebda, P.; Hunt, A.; Jones, J.; Laird, E.; Pegna, D. Lopes; Marlow, D.; Medvedeva, T.; Mooney, M.; Olsen, J.; Piroue, P.; Quan, X.; Saka, H.; Stickland, D.; Tully, C.; Werner, J. S.; Zuranski, A.] Princeton Univ, Princeton, NJ 08544 USA.
[Acosta, J. G.; Huang, X. T.; Lopez, A.; Mendez, H.; Oliveros, S.; Vargas, J. E. Ramirez; Zatserklyaniy, A.] Univ Puerto Rico, Mayaguez, PR USA.
[Alagoz, E.; Barnes, V. E.; Bolla, G.; Borrello, L.; Bortoletto, D.; Everett, A.; Garfinkel, A. F.; Gecse, Z.; Gutay, L.; Jones, M.; Koybasi, O.; Laasanen, A. T.; Leonardo, N.; Liu, C.; Maroussov, V.; Meier, M.; Merkel, P.; Miller, D. H.; Neumeister, N.; Potamianos, K.; Shipsey, I.; Silvers, D.; Sun, H.; Svyatkovskiy, A.; Yoo, H. D.; Zablocki, J.; Zheng, Y.] Purdue Univ, W Lafayette, IN 47907 USA.
[Jindal, P.; Parashar, N.] Purdue Univ Calumet, Hammond, LA USA.
[Boulahouache, C.; Cuplov, V.; Ecklund, K. M.; Geurts, F. J. M.; Liu, J. H.; Morales, J.; Padley, B. P.; Redjimi, R.; Roberts, J.; Zabel, J.] Rice Univ, Houston, TX USA.
[Betchart, B.; Bodek, A.; Chung, Y. S.; de Barbaro, P.; Demina, R.; Eshaq, Y.; Flacher, H.; Garcia-Bellido, A.; Goldenzweig, P.; Gotra, Y.; Han, J.; Harel, A.; Miner, D. C.; Orbaker, D.; Petrillo, G.; Vishnevskiy, D.; Zielinski, M.] Univ Rochester, Rochester, NY 14627 USA.
[Bhatti, A.; Demortier, L.; Goulianos, K.; Lungu, G.; Mesropian, C.; Yan, M.] Rockefeller Univ, New York, NY 10021 USA.
[Atramentov, O.; Barker, A.; Duggan, D.; Gershtein, Y.; Gray, R.; Halkiadakis, E.; Hidas, D.; Hits, D.; Lath, A.; Panwalkar, S.; Patel, R.; Richards, A.; Rose, K.; Schnetzer, S.; Somalwar, S.; Stone, R.; Thomas, S.] Rutgers State Univ, Piscataway, NJ USA.
[Cerizza, G.; Hollingsworth, M.; Spanier, S.; Yang, Z. C.; York, A.] Univ Tennessee, Knoxville, TN USA.
[Asaadi, J.; Eusebi, R.; Gilmore, J.; Gurrola, A.; Kamon, T.; Khotilovich, V.; Montalvo, R.; Nguyen, C. N.; Pivarski, J.; Safonov, A.; Sengupta, S.; Tatarinov, A.; Toback, D.; Weinberger, M.] Texas A&M Univ, College Stn, TX USA.
[Akchurin, N.; Bardak, C.; Damgov, J.; Jeong, C.; Kovitanggoon, K.; Lee, S. W.; Mane, P.; Roh, Y.; Sill, A.; Volobouev, I.; Wigmans, R.; Yazgan, E.] Texas Tech Univ, Lubbock, TX 79409 USA.
[Appelt, E.; Brownson, E.; Engh, D.; Florez, C.; Gabella, W.; Johns, W.; Kurt, P.; Maguire, C.; Melo, A.; Sheldon, P.; Velkovska, J.] Vanderbilt Univ, Nashville, TN USA.
[Arenton, M. W.; Balazs, M.; Boutle, S.; Buehler, M.; Conetti, S.; Cox, B.; Francis, B.; Hirosky, R.; Ledovskoy, A.; Lin, C.; Neu, C.; Patel, T.; Yohay, R.] Univ Virginia, Charlottesville, VA USA.
[Gollapinni, S.; Harr, R.; Karchin, P. E.; Loggins, V.; Mattson, M.; Milstene, C.; Sakharov, A.] Wayne State Univ, Detroit, MI USA.
[Anderson, M.; Bachtis, M.; Bellinger, J. N.; Carlsmith, D.; Dasu, S.; Efron, J.; Gray, L.; Gregerson, A.; Grogg, K. S.; Grothe, M.; Hall-Wilton, R.; Herndon, M.; Klabbers, P.; Klukas, J.; Lanaro, A.; Lazaridis, C.; Leonard, J.; Liu, J.; Lomidze, D.; Loveless, R.; Mohapatra, A.; Parker, W.; Reeder, D.; Ross, I.; Savin, A.; Smith, W. H.; Swanson, J.; Weinberg, M.] Univ Wisconsin, Madison, WI 53706 USA.
[Gregores, E. M.] Univ Fed ABC, Santo Andre, Brazil.
[Anagnostou, G.; Edelhoff, M.; Feld, L.; Heracleous, N.; Hindrichs, O.; Jussen, R.; Klein, K.; Merz, J.; Mohr, N.; Ostapchuk, A.; Perieanu, A.; Raupach, F.; Sammet, J.; Schael, S.; Sprenger, D.; Weber, H.; Weber, M.; Wittmer, B.] Rhein Westfal TH Aachen, Inst Phys 1, Aachen, Germany.
[Ata, M.; Bender, W.; Erdmann, M.; Frangenheim, J.; Hebbeker, T.; Hinzmann, A.; Hoepfner, K.; Hof, C.; Klimkovich, T.; Klingebiel, D.; Kreuzer, P.; Lanske, D.; Magass, C.; Masetti, G.; Merschmeyer, M.; Meyer, A.; Papacz, P.; Pieta, H.; Reithler, H.; Schmitz, S. A.; Sonnenschein, L.; Steggemann, J.; Teyssier, D.] Rhein Westfal TH Aachen, Inst Phys 3, Aachen, Germany.
[Bontenackels, M.; Davids, M.; Duda, M.; Fluegge, G.; Geenen, H.; Giffels, M.; Ahmad, W. Haj; Heydhausen, D.; Kress, T.; Kuessel, Y.; Linn, A.; Nowack, A.; Perchalla, L.; Pooth, O.; Rennefeld, J.; Sauerland, P.; Stahl, A.; Thomas, M.; Tornier, D.; Zoeller, M. H.] Rhein Westfal TH Aachen, Inst Phys B 3, Aachen, Germany.
[Martin, M. Aldaya; Behrenhoff, W.; Behrens, U.; Bergholz, M.; Borras, K.; Cakir, A.; Campbell, A.; Castro, E.; Dammann, D.; Eckerlin, G.; Eckstein, D.; Flossdorf, A.; Flucke, G.; Geiser, A.; Glushkov, I.; Hauk, J.; Jung, H.; Kasemann, M.; Katkov, I.; Katsas, P.; Kleinwort, C.; Kluge, H.; Knutsson, A.; Kruecker, D.; Kuznetsova, E.; Lange, W.; Lohmann, W.; Mankel, R.; Marienfeld, M.; Melzer-Pellmann, I. -A.; Meyer, A. B.; Mnich, J.; Mussgiller, A.; Olzem, J.; Parenti, A.; Raspereza, A.; Raval, A.; Schmidt, R.; Schoerner-Sadenius, T.; Stein, M.; Tomaszewska, J.; Volyanskyy, D.; Walsh, R.; Wissing, C.; Sen, S.] DESY, Hamburg, Germany.
[Autermann, C.; Bobrovskyi, S.; Draeger, J.; Enderle, H.; Gebbert, U.; Kaschube, K.; Kaussen, G.; Klanner, R.; Mura, B.; Naumann-Emme, S.; Nowak, F.; Pietsch, N.; Sander, C.; Schettler, H.; Schleper, P.; Schroeder, M.; Schum, T.; Schwandt, J.; Srivastava, A. K.; Stadie, H.; Steinbrueck, G.; Thomsen, J.; Wolf, R.] Univ Hamburg, Hamburg, Germany.
[Bauer, J.; Buege, V.; Chwalek, T.; Daeuwel, D.; De Boer, W.; Dierlamm, A.; Dirkes, G.; Feindt, M.; Gruschke, J.; Hackstein, C.; Hartmann, F.; Heindl, S. M.; Heinrich, M.; Held, H.; Hoffmann, K. H.; Honc, S.; Kuhr, T.; Martschei, D.; Mueller, S.; Mueller, Th; Neuland, M. B.; Niegel, M.; Oberst, O.; Oehler, A.; Ott, J.; Peiffer, T.; Piparo, D.; Quast, G.; Rabbertz, K.; Ratnikov, F.; Renz, M.; Sabellek, A.; Saout, C.; Scheurer, A.; Schieferdecker, P.; Schilling, F. -P.; Schott, G.; Simonis, H. J.; Stober, F. M.; Troendle, D.; Wagner-Kuhr, J.; Zeise, M.; Zhukov, V.; Ziebarth, E. B.] Univ Karlsruhe, Inst Expt Kernphys, D-7500 Karlsruhe, Germany.
[Daskalakis, G.; Geralis, T.; Kesisoglou, S.; Kyriakis, A.; Loukas, D.; Manolakos, I.; Markou, A.; Markou, C.; Mavrommatis, C.; Petrakou, E.] Inst Nucl Phys Demokritos, Aghia Paraskevi, Greece.
[Gouskos, L.; Mertzimekis, T.; Panagiotou, A.; Sphicas, P.] Univ Athens, Athens, Greece.
[Evangelou, I.; Foudas, C.; Kokkas, P.; Manthos, N.; Papadopoulos, I.; Patras, V.; Triantis, F. A.] Univ Ioannina, GR-45110 Ioannina, Greece.
[Aranyi, A.; Bencze, G.; Boldizsar, L.; Debreczeni, G.; Hajdu, C.; Horvath, D.; Kapusi, A.; Krajczar, K.; Laszlo, A.; Sikler, F.; Vesztergombi, G.; Pasztor, G.] KFKI Res Inst Particle & Nucl Phys, Budapest, Hungary.
[Horvath, D.; Beni, N.; Molnar, J.; Palinkas, J.; Szillasi, Z.; Veszpremi, V.] Inst Nucl Res ATOMKI, Debrecen, Hungary.
[Raics, P.; Trocsanyi, Z. L.; Ujvari, B.] Univ Debrecen, Debrecen, Hungary.
[Bansal, S.; Beri, S. B.; Bhatnagar, V.; Jindal, M.; Kaur, M.; Kohli, J. M.; Mehta, M. Z.; Nishu, N.; Saini, L. K.; Sharma, A.; Sharma, R.; Singh, A. P.; Singh, J. B.; Singh, S. P.] Panjab Univ, Chandigarh 160014, India.
[Ahuja, S.; Bhattacharya, S.; Chauhan, S.; Choudhary, B. C.; Gupta, P.; Jain, S.; Kumar, A.; Shivpuri, R. K.] Univ Delhi, Delhi 110007, India.
[Choudhury, R. K.; Dutta, D.; Kailas, S.; Kataria, S. K.; Mohanty, A. K.; Pant, L. M.; Shukla, P.; Suggisetti, P.] Bhabha Atom Res Ctr, Mumbai 400085, Maharashtra, India.
[Aziz, T.; Guchait, M.; Gurtu, A.; Maity, M.; Majumder, D.; Majumder, G.; Mazumdar, K.; Mohanty, G. B.; Saha, A.; Sudhakar, K.; Wickramage, N.] Tata Inst Fundamental Res EHEP, Mumbai, Maharashtra, India.
[Guchait, M.; Banerjee, S.; Dugad, S.; Mondal, N. K.] Tata Inst Fundamental Res HECR, Mumbai, Maharashtra, India.
[Arfaei, H.; Bakhshiansohi, H.; Etesami, S. M.; Fahim, A.; Hashemi, M.; Jafari, A.; Khakzad, M.; Mohammadi, A.; Najafabadi, M. Mohammadi; Mehdiabadi, S. Paktinat; Safarzadeh, B.; Zeinali, M.] Inst Studies Theoret Phys & Math IPM, Tehran, Iran.
[Abbrescia, M.; Barbone, L.; Calabria, C.; Colaleo, A.; Creanza, D.; De Filippis, N.; De Palma, M.; Dimitrov, A.; Fedele, F.; Fiore, L.; Iaselli, G.; Lusito, L.; Maggi, G.; Maggi, M.; Manna, N.; Marangelli, B.; My, S.; Nuzzo, S.; Pacifico, N.; Pierro, G. A.; Pompili, A.; Pugliese, G.; Romano, F.; Roselli, G.; Selvaggi, G.; Silvestris, L.; Trentadue, R.; Tupputi, S.; Zito, G.] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy.
[Abbrescia, M.; Barbone, L.; Calabria, C.; Lusito, L.; Manna, N.; Marangelli, B.; Nuzzo, S.; Pacifico, N.; Pompili, A.; Roselli, G.; Selvaggi, G.; Tupputi, S.; Palma, A.] Univ Bari, Bari, Italy.
[Creanza, D.; De Filippis, N.; Iaselli, G.; Maggi, G.; My, S.; Pugliese, G.; Romano, F.] Politecn Bari, Bari, Italy.
[Abbiendi, G.; Benvenuti, A. C.; Bonacorsi, D.; Braibant-Giacomelli, S.; Capiluppi, P.; Castro, A.; Cavallo, F. R.; Cuffiani, M.; Dallavalle, G. M.; Fabbri, F.; Fanfani, A.; Fasanella, D.; Giacomelli, P.; Giunta, M.; Grandi, C.; Marcellini, S.; Meneghelli, M.; Montanari, A.; Navarria, F. L.; Odorici, F.; Perrotta, A.; Rossi, A. M.; Rovelli, T.; Siroli, G.; Travaglini, R.] Ist Nazl Fis Nucl, Sez Bologna, I-40126 Bologna, Italy.
[Braibant-Giacomelli, S.; Capiluppi, P.; Castro, A.; Cuffiani, M.; Fanfani, A.; Meneghelli, M.; Navarria, F. L.; Rossi, A. M.; Rovelli, T.; Siroli, G.; Travaglini, R.] Univ Bologna, Bologna, Italy.
[Albergo, S.; Cappello, G.; Chiorboli, M.; Costa, S.; Tricomi, A.; Tuve, C.] Ist Nazl Fis Nucl, Sez Catania, I-95129 Catania, Italy.
[Albergo, S.; Cappello, G.; Chiorboli, M.; Costa, S.; Tricomi, A.] Univ Catania, Catania, Italy.
[Barbagli, G.; Ciulli, V.; Civinini, C.; D'Alessandro, R.; Focardi, E.; Frosali, S.; Gallo, E.; Genta, C.; Lenzi, P.; Meschini, M.; Paoletti, S.; Sguazzoni, G.; Tropiano, A.] Ist Nazl Fis Nucl, Sez Firenze, I-50125 Florence, Italy.
[Ciulli, V.; D'Alessandro, R.; Focardi, E.; Frosali, S.; Lenzi, P.] Univ Florence, Florence, Italy.
[Fabbri, F.; Benussi, L.; Bianco, S.; Colafranceschi, S.; Piccolo, D.] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy.
[Fabbricatore, P.; Musenich, R.] Ist Nazl Fis Nucl, Sez Genova, I-16146 Genoa, Italy.
[Benaglia, A.; Cerati, G. B.; De Guio, F.; Di Matteo, L.; Ghezzi, A.; Govoni, R.; Malberti, M.; Malvezzi, S.; Martelli, A.; Massironi, A.; Menasce, D.; Moroni, L.; Paganoni, M.; Pedrini, D.; Ragazzi, S.; Redaelli, N.; Sala, S.; de Fatis, T. Tabarelli; Tancini, V.] Ist Nazl Fis Nucl, Sez Milano Biccoca, I-20133 Milan, Italy.
[Benaglia, A.; Cerati, G. B.; De Guio, F.; Di Matteo, L.; Ghezzi, A.; Govoni, R.; Malberti, M.; Martelli, A.; Massironi, A.; Paganoni, M.; Ragazzi, S.; de Fatis, T. Tabarelli; Tancini, V.] Univ Milano Bicocca, Milan, Italy.
[Buontempo, S.; Montoya, C. A. Carrillo; Cimmino, A.; De Cosa, A.; De Gruttola, M.; Fabozzi, F.; Iorio, A. O. M.; Lista, L.; Merola, M.; Noli, P.; Paolucci, P.] Ist Nazl Fis Nucl, Sez Napoli, I-80125 Naples, Italy.
[Cimmino, A.; De Cosa, A.; De Gruttola, M.; Merola, M.; Noli, P.] Univ Naples Federico II, Naples, Italy.
[Azzi, P.; Bacchetta, N.; Bellan, P.; Bisello, D.; Branca, A.; Carlin, R.; Checchia, P.; De Mattia, M.; Dorigo, T.; Dosselli, U.; Gasparini, F.; Gasparini, U.; Giubilato, P.; Gresele, A.; Lacaprara, S.; Lazzizzera, I.; Margoni, M.; Mazzucato, M.; Meneguzzo, A. T.; Nespolo, M.; Perrozzi, L.; Pozzobon, N.; Ronchese, P.; Simonetto, F.; Torassa, E.; Tosi, M.; Triossi, A.; Vanini, S.; Zotto, P.; Zumerle, G.] Ist Nazl Fis Nucl, Sez Padova, Padua, Italy.
[Bellan, P.; Bisello, D.; Carlin, R.; De Mattia, M.; Gasparini, F.; Gasparini, U.; Giubilato, P.; Margoni, M.; Meneguzzo, A. T.; Pozzobon, N.; Ronchese, P.; Simonetto, F.; Tosi, M.; Vanini, S.; Zotto, P.; Zumerle, G.] Univ Padua, Padua, Italy.
[Gresele, A.; Lazzizzera, I.] Univ Trento Trento, Padua, Italy.
[Baesso, P.; Berzano, U.; Riccardi, C.; Torre, P.; Vitulo, R.; Viviani, C.] Ist Nazl Fis Nucl, Sez Pavia, I-27100 Pavia, Italy.
[Baesso, P.; Riccardi, C.; Torre, P.; Viviani, C.] Univ Pavia, I-27100 Pavia, Italy.
[Biasini, M.; Bilei, G. M.; Caponeri, B.; Fano, L.; Lariccia, P.; Lucaroni, A.; Mantovani, G.; Menichelli, M.; Nappi, A.; Santocchia, A.; Servoli, L.; Taroni, S.; Valdata, M.; Volpe, R.; Pioppi, M.] Ist Nazl Fis Nucl, Sez Perugia, I-06100 Perugia, Italy.
[Biasini, M.; Caponeri, B.; Fano, L.; Lariccia, P.; Lucaroni, A.; Mantovani, G.; Nappi, A.; Santocchia, A.; Taroni, S.; Valdata, M.; Volpe, R.; Pioppi, M.] Univ Perugia, I-06100 Perugia, Italy.
[Barone, L.; Cavallari, F.; Del Re, D.; Di Marco, E.; Diemoz, M.; Franci, D.; Grassi, M.; Longo, E.; Organtini, G.; Palma, A.; Pandolfi, F.; Paramatti, R.; Rahatlou, S.] Ist Nazl Fis Nucl, Sez Roma, Rome, Italy.
[Colafranceschi, S.] Univ Roma La Sapienza, Fac Ingn, Rome, Italy.
[Costa, S.; Amapane, N.; Arcidiacono, R.; Argiro, S.; Arneodo, M.; Biino, C.; Botta, C.; Cartiglia, N.; Castello, R.; Costa, M.; Demaria, N.; Graziano, A.; Mariotti, C.; Marone, M.; Maselli, S.; Migliore, E.; Mila, G.; Monaco, V.; Musich, M.; Obertino, M. M.; Pastrone, N.; Pelliccioni, M.; Romero, A.; Ruspa, M.; Sacchi, R.; Sola, V.; Solano, A.; Staiano, A.; Trocino, D.; Pereira, A. Vilela] Ist Nazl Fis Nucl, Sez Torino, I-10125 Turin, Italy.
[Amapane, N.; Argiro, S.; Botta, C.; Castello, R.; Costa, M.; Graziano, A.; Marone, M.; Migliore, E.; Mila, G.; Monaco, V.; Musich, M.; Pelliccioni, M.; Romero, A.; Sacchi, R.; Sola, V.; Solano, A.; Trocino, D.; Pereira, A. Vilela] Univ Turin, Turin, Italy.
[Arcidiacono, R.; Arneodo, M.; Obertino, M. M.; Ruspa, M.] Univ Piemonte Orientale Novara, Turin, Italy.
[Ambroglini, F.; Belforte, S.; Cossutti, F.; Della Ricca, G.; Gobbo, B.; Montanino, D.; Penzo, A.] Ist Nazl Fis Nucl, Sez Trieste, Trieste, Italy.
[Ambroglini, F.; Della Ricca, G.; Montanino, D.] Univ Trieste, Trieste, Italy.
[Heo, S. G.] Kangwon Natl Univ, Chunchon, South Korea.
[Chang, S.; Chung, J.; Kim, D. H.; Kim, G. N.; Kim, J. E.; Kong, D. J.; Park, H.; Son, D.; Son, D. C.] Kyungpook Natl Univ, Taegu, South Korea.
[Kim, Zero; Kim, J. Y.; Song, S.] Chonnam Natl Univ, Inst Universe & Elementary Particles, Kwangju, South Korea.
[Choi, S.; Hong, B.; Jo, M.; Kim, H.; Kim, J. H.; Kim, T. J.; Lee, K. S.; Moon, D. H.; Park, S. K.; Rhee, H. B.; Seo, E.; Shin, S.; Sim, K. S.] Korea Univ, Seoul, South Korea.
[Abdel-basit, A.] Cairo Univ, Cairo, Egypt.
[Assran, Y.] Suez Canal Univ, Suez, Egypt.
[Mahmoud, M. A.] Fayoum Univ, Al Fayyum, Egypt.
[Agram, J. -L.; Drouhin, F.; Fontaine, J. -C.; Karim, M.] Univ Haute Alsace, Mulhouse, France.
[Bergholz, M.; Schmidt, R.] Brandenburg Tech Univ Cottbus, Cottbus, Germany.
[Krajczar, K.; Vesztergombi, G.; Veres, G. I.] Eotvos Lorand Univ, Budapest, Hungary.
[Maity, M.] Visva Bharati Univ, Santini Ketan, W Bengal, India.
[Fabozzi, F.] Univ Basilicata, I-85100 Potenza, Italy.
[Lacaprara, S.] Ist Nazl Fis Nucl, Lab Nazl Legnaro, I-35020 Legnaro, Italy.
[Bell, A. J.] Univ Geneva, Geneva, Switzerland.
[Rolandi, G.] Scuola Normale, Pisa, Italy.
[Rolandi, G.] Sezione Ist Nazl Fis Nucl, Pisa, Italy.
[Rovelli, C.] Ist Nazl Fis Nucl, Sez Roma, Rome, Italy.
[Cerci, S.] Adiyaman Univ, Adiyaman, Turkey.
[Sogut, K.] Mersin Univ, Mersin, Turkey.
[Demir, D.] Izmir Inst Technol, Izmir, Turkey.
[Kaya, M.; Kaya, O.] Kafkas Univ, Kars, Turkey.
[Ozkorucuklu, S.] Suleyman Demirel Univ, TR-32200 Isparta, Turkey.
[Sonmez, N.] Ege Univ, Izmir, Turkey.
[Cankocak, K.] Istanbul Tech Univ, TR-80626 Istanbul, Turkey.
RP Tenchini, R (reprint author), Ist Nazl Fis Nucl, Sez Pisa, Pisa, Italy.
EM Roberto.Tenchini@cern.ch
RI Menasce, Dario Livio/A-2168-2016; Sguazzoni, Giacomo/J-4620-2015;
Ligabue, Franco/F-3432-2014; Fassi, Farida/F-3571-2016; Gerbaudo,
Davide/J-4536-2012; MERCIER, Damien/C-4151-2017; Paganoni,
Marco/A-4235-2016; Kirakosyan, Martin/N-2701-2015; Seixas,
Joao/F-5441-2013; Vilela Pereira, Antonio/L-4142-2016; Sznajder,
Andre/L-1621-2016; Haj Ahmad, Wael/E-6738-2016; Xie, Si/O-6830-2016;
Leonardo, Nuno/M-6940-2016; Goh, Junghwan/Q-3720-2016; Govoni,
Pietro/K-9619-2016; Tuominen, Eija/A-5288-2017; Yazgan, Efe/C-4521-2014;
Paulini, Manfred/N-7794-2014; Rovelli, Tiziano/K-4432-2015; Dremin,
Igor/K-8053-2015; Hoorani, Hafeez/D-1791-2013; Andreev,
Vladimir/M-8665-2015; Cakir, Altan/P-1024-2015; TUVE',
Cristina/P-3933-2015; Gulmez, Erhan/P-9518-2015; KIM, Tae
Jeong/P-7848-2015; Arce, Pedro/L-1268-2014; Flix, Josep/G-5414-2012;
Ozdemir, Kadri/P-8058-2014; Della Ricca, Giuseppe/B-6826-2013; Azarkin,
Maxim/N-2578-2015; Lazzizzera, Ignazio/E-9678-2015; Sen,
Sercan/C-6473-2014; vilar, rocio/P-8480-2014; D'Alessandro,
Raffaello/F-5897-2015; Belyaev, Alexander/F-6637-2015; Trocsanyi,
Zoltan/A-5598-2009; Konecki, Marcin/G-4164-2015; Hernandez Calama, Jose
Maria/H-9127-2015; Bedoya, Cristina/K-8066-2014; Matorras,
Francisco/I-4983-2015; My, Salvatore/I-5160-2015; Muelmenstaedt,
Johannes/K-2432-2015; de la Cruz, Begona/K-7552-2014; Scodellaro,
Luca/K-9091-2014; Josa, Isabel/K-5184-2014; Gonzalez Suarez,
Rebeca/L-6128-2014; Calvo Alamillo, Enrique/L-1203-2014; Vogel,
Helmut/N-8882-2014; Marinho, Franciole/N-8101-2014; Ragazzi,
Stefano/D-2463-2009; Benussi, Luigi/O-9684-2014; Russ,
James/P-3092-2014; Ferreira Dias, Marco Andre/P-6667-2014; Grandi,
Claudio/B-5654-2015; Ahmed, Ijaz/E-9144-2015; Wimpenny,
Stephen/K-8848-2013; Troitsky, Sergey/C-1377-2014; Marlow,
Daniel/C-9132-2014; Janssen, Xavier/E-1915-2013; Oguri,
Vitor/B-5403-2013; Alves, Gilvan/C-4007-2013; Santoro,
Alberto/E-7932-2014; Codispoti, Giuseppe/F-6574-2014; Gribushin,
Andrei/J-4225-2012; Cerrada, Marcos/J-6934-2014; Calderon,
Alicia/K-3658-2014; de Jesus Damiao, Dilson/G-6218-2012; Montanari,
Alessandro/J-2420-2012; Amapane, Nicola/J-3683-2012; tosi,
mia/J-5777-2012; Petrushanko, Sergey/D-6880-2012; Raidal,
Martti/F-4436-2012; Kadastik, Mario/B-7559-2008; Mundim,
Luiz/A-1291-2012; Santaolalla, Javier/C-3094-2013; Rolandi, Luigi
(Gigi)/E-8563-2013; Zalewski, Piotr/H-7335-2013; Ivanov,
Andrew/A-7982-2013; Hill, Christopher/B-5371-2012; Katkov,
Igor/E-2627-2012; Boos, Eduard/D-9748-2012; Snigirev,
Alexander/D-8912-2012; Servoli, Leonello/E-6766-2012; Tomei,
Thiago/E-7091-2012; Novaes, Sergio/D-3532-2012; Padula, Sandra
/G-3560-2012; Fruhwirth, Rudolf/H-2529-2012; Azzi, Patrizia/H-5404-2012;
Torassa, Ezio/I-1788-2012; Giacomelli, Paolo/B-8076-2009; Jeitler,
Manfred/H-3106-2012; Venturi, Andrea/J-1877-2012; Palinkas,
Jozsef/B-2993-2011; Mignerey, Alice/D-6623-2011; Ruiz,
Alberto/E-4473-2011; Stahl, Achim/E-8846-2011; Hektor, Andi/G-1804-2011;
Wulz, Claudia-Elisabeth/H-5657-2011; Chen, Jie/H-6210-2011; Bolton,
Tim/A-7951-2012; Yang, Fan/B-2755-2012; Krammer, Manfred/A-6508-2010;
Tinoco Mendes, Andre David/D-4314-2011; Lokhtin, Igor/D-7004-2012;
Kodolova, Olga/D-7158-2012; Dudko, Lev/D-7127-2012; Varela,
Joao/K-4829-2016
OI Menasce, Dario Livio/0000-0002-9918-1686; Attia Mahmoud,
Mohammed/0000-0001-8692-5458; Bilki, Burak/0000-0001-9515-3306; Lloret
Iglesias, Lara/0000-0002-0157-4765; Carrera, Edgar/0000-0002-0857-8507;
Sguazzoni, Giacomo/0000-0002-0791-3350; Ligabue,
Franco/0000-0002-1549-7107; Diemoz, Marcella/0000-0002-3810-8530;
Tricomi, Alessia Rita/0000-0002-5071-5501; Fassi,
Farida/0000-0002-6423-7213; Ghezzi, Alessio/0000-0002-8184-7953; bianco,
stefano/0000-0002-8300-4124; Gerbaudo, Davide/0000-0002-4463-0878;
MERCIER, Damien/0000-0001-5063-7067; Vieira de Castro Ferreira da Silva,
Pedro Manuel/0000-0002-5725-041X; Bean, Alice/0000-0001-5967-8674;
Longo, Egidio/0000-0001-6238-6787; Di Matteo,
Leonardo/0000-0001-6698-1735; Baarmand, Marc/0000-0002-9792-8619;
Boccali, Tommaso/0000-0002-9930-9299; Paganoni,
Marco/0000-0003-2461-275X; Seixas, Joao/0000-0002-7531-0842; Vilela
Pereira, Antonio/0000-0003-3177-4626; Sznajder,
Andre/0000-0001-6998-1108; Haj Ahmad, Wael/0000-0003-1491-0446; Xie,
Si/0000-0003-2509-5731; Leonardo, Nuno/0000-0002-9746-4594; Goh,
Junghwan/0000-0002-1129-2083; Govoni, Pietro/0000-0002-0227-1301;
Tuominen, Eija/0000-0002-7073-7767; Yazgan, Efe/0000-0001-5732-7950;
Paulini, Manfred/0000-0002-6714-5787; Rovelli,
Tiziano/0000-0002-9746-4842; TUVE', Cristina/0000-0003-0739-3153;
Gulmez, Erhan/0000-0002-6353-518X; KIM, Tae Jeong/0000-0001-8336-2434;
Arce, Pedro/0000-0003-3009-0484; Flix, Josep/0000-0003-2688-8047;
Ozdemir, Kadri/0000-0002-0103-1488; Della Ricca,
Giuseppe/0000-0003-2831-6982; Lazzizzera, Ignazio/0000-0001-5092-7531;
Sen, Sercan/0000-0001-7325-1087; D'Alessandro,
Raffaello/0000-0001-7997-0306; Belyaev, Alexander/0000-0002-1733-4408;
Trocsanyi, Zoltan/0000-0002-2129-1279; Konecki,
Marcin/0000-0001-9482-4841; Hernandez Calama, Jose
Maria/0000-0001-6436-7547; Bedoya, Cristina/0000-0001-8057-9152;
Matorras, Francisco/0000-0003-4295-5668; My,
Salvatore/0000-0002-9938-2680; Muelmenstaedt,
Johannes/0000-0003-1105-6678; Scodellaro, Luca/0000-0002-4974-8330;
Gonzalez Suarez, Rebeca/0000-0002-6126-7230; Calvo Alamillo,
Enrique/0000-0002-1100-2963; Vogel, Helmut/0000-0002-6109-3023; Marinho,
Franciole/0000-0002-7327-0349; Ragazzi, Stefano/0000-0001-8219-2074;
Benussi, Luigi/0000-0002-2363-8889; Russ, James/0000-0001-9856-9155;
Grandi, Claudio/0000-0001-5998-3070; Wimpenny,
Stephen/0000-0003-0505-4908; Troitsky, Sergey/0000-0001-6917-6600;
Codispoti, Giuseppe/0000-0003-0217-7021; Cerrada,
Marcos/0000-0003-0112-1691; de Jesus Damiao, Dilson/0000-0002-3769-1680;
Montanari, Alessandro/0000-0003-2748-6373; Amapane,
Nicola/0000-0001-9449-2509; Mundim, Luiz/0000-0001-9964-7805; Rolandi,
Luigi (Gigi)/0000-0002-0635-274X; Ivanov, Andrew/0000-0002-9270-5643;
Hill, Christopher/0000-0003-0059-0779; Katkov, Igor/0000-0003-3064-0466;
Servoli, Leonello/0000-0003-1725-9185; Tomei,
Thiago/0000-0002-1809-5226; Novaes, Sergio/0000-0003-0471-8549; Azzi,
Patrizia/0000-0002-3129-828X; Ruiz, Alberto/0000-0002-3639-0368; Stahl,
Achim/0000-0002-8369-7506; Hektor, Andi/0000-0001-7873-8118; Wulz,
Claudia-Elisabeth/0000-0001-9226-5812; Krammer,
Manfred/0000-0003-2257-7751; Tinoco Mendes, Andre
David/0000-0001-5854-7699; Dudko, Lev/0000-0002-4462-3192; Demaria,
Natale/0000-0003-0743-9465; Benaglia, Andrea Davide/0000-0003-1124-8450;
Covarelli, Roberto/0000-0003-1216-5235; Ciulli,
Vitaliano/0000-0003-1947-3396; Martelli, Arabella/0000-0003-3530-2255;
Levchenko, Petr/0000-0003-4913-0538; Varela, Joao/0000-0003-2613-3146
FU FMSR (Austria); FNRS; FWO (Belgium); CNPq; CAPES; FAPERJ; FAPESP
(Brazil); MES (Bulgaria); CERN; CAS; MoST; NSFC (China); COLCIENCIAS
(Colombia); MSES (Croatia); RPF (Cyprus); Academy of Sciences; NICPB
(Estonia); Academy of Finland; ME; HIP (Finland); CEA; CNRS/IN2P3
(France); BMBF; DFG; HGF (Germany); GSRT (Greece); OTKA; NKTH (Hungary);
DAE; DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); NRF; WCU
(Korea); LAS (Lithuania); CINVESTAV; CONACYT; SEP; UASLP-FAI (Mexico);
PAEC (Pakistan); SCSR (Poland); FCT (Portugal); JINR (Armenia); JINR
(Belarus); JINR (Georgia); JINR (Ukraine); JINR (Uzbekistan); MST; MAE
(Russia); MSTD (Serbia); MICINN; CPAN (Spain); Swiss Funding Agencies
(Switzerland); NSC (Taipei); TUBITAK; TAEK (Turkey); STFC (United
Kingdom); DOE; NSF (USA)
FX We wish to congratulate our colleagues in the CERN accelerator
departments for the excellent performance of the LHC machine. We thank
the technical and administrative staff at CERN and other CMS institutes,
and acknowledge support from: FMSR (Austria); FNRS and FWO (Belgium);
CNPq, CAPES, FAPERJ, and FAPESP (Brazil); MES (Bulgaria); CERN; CAS,
MoST, and NSFC (China); COLCIENCIAS (Colombia); MSES (Croatia); RPF
(Cyprus); Academy of Sciences and NICPB (Estonia); Academy of Finland,
ME, and HIP (Finland); CEA and CNRS/IN2P3 (France); BMBF, DFG, and HGF
(Germany); GSRT (Greece); OTKA and NKTH (Hungary); DAE and DST (India);
IPM (Iran); SFI (Ireland); INFN (Italy); NRF and WCU (Korea); LAS
(Lithuania); CINVESTAV, CONACYT, SEP, and UASLP-FAI (Mexico); PAEC
(Pakistan); SCSR (Poland); FCT (Portugal); JINR (Armenia, Belarus,
Georgia, Ukraine, Uzbekistan); MST and MAE (Russia); MSTD (Serbia);
MICINN and CPAN (Spain); Swiss Funding Agencies (Switzerland); NSC
(Taipei); TUBITAK and TAEK (Turkey); STFC (United Kingdom); DOE and NSF
(USA).
NR 39
TC 49
Z9 49
U1 3
U2 41
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0370-2693
EI 1873-2445
J9 PHYS LETT B
JI Phys. Lett. B
PD JAN 17
PY 2011
VL 695
IS 5
BP 424
EP 443
DI 10.1016/j.physletb.2010.11.058
PG 20
WC Astronomy & Astrophysics; Physics, Nuclear; Physics, Particles & Fields
SC Astronomy & Astrophysics; Physics
GA 715DB
UT WOS:000286859500005
ER
PT J
AU Wielopolski, L
Chatterjee, A
Mitra, S
Lal, R
AF Wielopolski, L.
Chatterjee, A.
Mitra, S.
Lal, R.
TI In situ determination of Soil carbon pool by inelastic neutron
scattering: Comparison with dry combustion
SO GEODERMA
LA English
DT Article
DE Carbon; Sequestration; Non-destructive; Neutrons; Organic soil
ID SEQUESTRATION; DESIGN
AB There is a well-documented need for new in situ technologies for elemental analysis of soil, particularly for carbon (C), that overcome the limitations of the currently established chemical method by dry combustion (DC). In this work, we evaluated the concordance between the new INS (inelastic neutron scattering) technology and the DC method. The comparisons were carried out in the high C content (30-40%) organic soils of Willard, Ohio (4 sites), in natural forest in Willard, Ohio (1 site), and in a watershed pasture, with a similar to 10 degrees slope, in Coshocton, Ohio (5 sites). In addition to these stationary measurements, the organic soil and the pasture were continuously scanned with the inelastic neutron scattering (INS) system to obtain the transects' mean C value. Both types of measurements, INS and DC, registered a decline in the surface density of C along transects in the watershed and in the organic soil. Similarly, both recorded a drop in C in the organic soil of about 0.16%. In the pastureland, declines in C levels of 0.08% and 0.10% were observed, respectively, by DC and INS. Combining the results from the three sites yielded a very satisfactory correlation between the INS- and DC-responses, with a regression coefficient, r(2), value of about 0.99. This suggests the possibility of establishing a universal regression line for various soil types. In addition, we demonstrated the ability of INS to measure the mean value over transect. In organic soil the mean value of an INS scan agreed, -0.5%, with the mean values of the DC analysis, whereas large discrepancy between these two was recorded in the pastureland. Overall, the various trends observed in C measurements by INS concurred with those determined by the DC method, so enhancing the confidence in the new INS technology. (c) 2010 Elsevier B.V. All rights reserved.
C1 [Wielopolski, L.; Mitra, S.] Brookhaven Natl Lab, Dept Environm Sci, Upton, NY 11973 USA.
[Chatterjee, A.; Lal, R.] Ohio State Univ, Carbon Management & Sequestrat Ctr, Columbus, OH 43210 USA.
RP Wielopolski, L (reprint author), Brookhaven Natl Lab, Dept Environm Sci, Upton, NY 11973 USA.
EM lwielo@bnl.gov; forestcarbon@gmail.com; smitra@bnl.gov; lal.1@osu.edu
RI Lal, Rattan/D-2505-2013; Chatterjee, Amitava/E-5050-2013
FU BER office of U.S. Department of Energy [DE-AC02-98CH10886]; NETL office
of U.S. Department of Energy [DE-AC02-98CH10886]
FX Authors appreciate the assistance of the following people for their help
in preparing and conducting these field measurements: Nicholas Brooks,
Basant Rimal of Carbon Management and Sequestration Center, The Ohio
State University; Richard Callendar, Herminio Perez of Muck Crops
Agricultural Research Station, Willard, OH; and Drs. Lloyd Owen, and
Martin J. Shipitalo of USDA North Appalachian Experimental Watershed
(NAEW) in Coshocton. The financial support of the BER and NETL offices
of U.S. Department of Energy under Contract no. DE-AC02-98CH10886 is
recognized.
NR 23
TC 14
Z9 16
U1 2
U2 10
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0016-7061
J9 GEODERMA
JI Geoderma
PD JAN 15
PY 2011
VL 160
IS 3-4
BP 394
EP 399
DI 10.1016/j.geoderma.2010.10.009
PG 6
WC Soil Science
SC Agriculture
GA 717UM
UT WOS:000287072900014
ER
PT J
AU Cederberg, JG
Overberg, ME
AF Cederberg, J. G.
Overberg, M. E.
TI InP substrate evaluation by MOVPE growth of lattice matched epitaxial
layers
SO JOURNAL OF CRYSTAL GROWTH
LA English
DT Article; Proceedings Paper
CT 15th International Conference on Metalorganic Vapor Phase Epitaxy
(ICMOVPE-XV)
CY MAY 23-28, 2010
CL Incline Village, NV
DE Atomic force microscopy; Metal-organic vapor phase epitaxy;
Semiconducting III-V materials; Semiconducting indium phosphide
ID CHEMICAL-VAPOR-DEPOSITION; DEVICE APPLICATIONS; PHASE EPITAXY;
GAINAS/ALINAS/INP; MORPHOLOGY; SURFACES; BEHAVIOR; QUALITY
AB InP substrates form the starting point for a wide variety of semiconductor devices. The surface morphology produced during epitaxy depends critically on the starting substrate. We evaluated (1 0 0)-oriented InP wafers from three different vendors by growing thick (5 mu m) lattice-matched epilayers of InP, Gain As, and AlInAs. We assessed the surfaces with differential interference contrast microscopy and atomic force microscopy. Wafers with near singular (1 0 0) orientations produced inferior surfaces in general. Vicinal substrates with small misorientations improved the epitaxial surface for InP dramatically, reducing the density of macroscopic defects while maintaining a low RMS roughness. GaInAs and AlInAs epitaxy step-bunched forming undulations along the miscut direction. Sulfur-doped wafers were considered for singular (1 0 0) and for 0.2 degrees misorientation toward (1 1 0). We found that mound defects observed for InP and GaInAs layers on iron-doped singular wafers were absent for singular sulfur-doped wafers. These observations support the conclusion that dislocation termination at the surface and expansion of the step spiral lead to the macroscopic defects observed. (C) 2010 Elsevier B.V. All rights reserved.
C1 [Cederberg, J. G.; Overberg, M. E.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Cederberg, JG (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
EM jgceder@sandia.gov
NR 12
TC 3
Z9 3
U1 1
U2 6
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0022-0248
J9 J CRYST GROWTH
JI J. Cryst. Growth
PD JAN 15
PY 2011
VL 315
IS 1
SI SI
BP 48
EP 52
DI 10.1016/j.jcrysgro.2010.08.040
PG 5
WC Crystallography; Materials Science, Multidisciplinary; Physics, Applied
SC Crystallography; Materials Science; Physics
GA 724EH
UT WOS:000287558400010
ER
PT J
AU Greaves, GN
Wilding, MC
Langstaff, D
Kargl, F
Hennet, L
Benmore, CJ
Weber, JKR
Van, QV
Majerus, O
McMillan, PF
AF Greaves, G. N.
Wilding, M. C.
Langstaff, D.
Kargl, F.
Hennet, L.
Benmore, C. J.
Weber, J. K. R.
Van, Q. Vu
Majerus, O.
McMillan, P. F.
TI Composition and polyamorphism in supercooled yttria-alumina melts
SO JOURNAL OF NON-CRYSTALLINE SOLIDS
LA English
DT Article
DE Diffraction and scattering measurements; Supercooled liquids; Glass
formation; Phases and equilibria; Structure; Fluctuations; Critical
phenomena
ID LIQUID PHASE-TRANSITION; GLASS-FORMATION; NEUTRON; DIFFRACTION; OXIDE;
PHOSPHORUS; SEPARATION
AB By extending recent work on liquid-liquid transitions in supercooled yttria-alumina AYx liquids we draw attention to the compositional dependence of the structure factor of the high density liquid, arguing that this is sufficiently sensitive to discriminate between liquids at the level of a few %. Comparing structure factor differences between liquids of different compositions and in the same liquid AY20 between high and low temperatures straddling the transition at 1788 K between a high density liquid (HDL) and a low density liquid (LDL) enables compositional phase separation to be ruled out. It points instead to kinetic changes in polyhedral configurational order being the drivers for this polyamorphic transformation. Rotor behaviour observed in levitated liquid drops used in the high temperature experiments enables the reversibility of the LLT transition (LLT) and the associated changes in entropy and density to be identified. Evidence for critical-like behaviour in the structural relaxation time and in the fluctuation correlation length is presented. By re-examining recent work which failed to find the structural and thermal signatures for the LLT in liquid AY20 at 1788 K we present evidence for the LLT occurring instead in liquid AY15 at 1940 K, suggesting that the liquid-liquid transition temperature in AYx liquids decreases with increasing yttria content. (C) 2010 Elsevier B.V. All rights reserved.
C1 [Greaves, G. N.; Wilding, M. C.; Langstaff, D.; Kargl, F.; Van, Q. Vu] Aberystwyth Univ, Ctr Adv Funct Mat & Devices, Inst Math & Phys, Aberystwyth SY23 3BZ, Dyfed, Wales.
[Kargl, F.] Deutches Zentrum Luft & Raumfahrt, Inst Mat Phys Weltrum, D-51170 Cologne, Germany.
[Hennet, L.] CNRS CEMHTI, F-45071 Orleans 2, France.
[Benmore, C. J.; Weber, J. K. R.] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA.
[Weber, J. K. R.] Mat Dev Inc, Arlington Hts, IL 60004 USA.
[Majerus, O.] Ecole Natl Super Chim Paris, F-75231 Paris, France.
[Greaves, G. N.; McMillan, P. F.] UCL, Dept Chem, London WC1H 0AJ, England.
[Greaves, G. N.; McMillan, P. F.] UCL, Mat Chem Ctr, London WC1H 0AJ, England.
RP Greaves, GN (reprint author), Aberystwyth Univ, Ctr Adv Funct Mat & Devices, Inst Math & Phys, Aberystwyth SY23 3BZ, Dyfed, Wales.
EM gng@aber.ac.uk
RI HENNET, Louis/C-1711-2008;
OI HENNET, Louis/0000-0002-2992-4800; Benmore, Chris/0000-0001-7007-7749
FU Higher Education Funding Council in Wales through the Centre for
Advanced Functional Materials and Devices
FX We are grateful to W. Bras, C.M. Martin and P. Poole for stimulating
discussions, the Science and Technology Facility Council for providing
SAXS/WAXS facilities on station 6.2 at the SRS and the Advanced Photon
Source for access to high energy X-ray scattering facilities on II-1D-C.
We also acknowledge the support of the Higher Education Funding Council
in Wales through the Centre for Advanced Functional Materials and
Devices.
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PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0022-3093
EI 1873-4812
J9 J NON-CRYST SOLIDS
JI J. Non-Cryst. Solids
PD JAN 15
PY 2011
VL 357
IS 2
SI SI
BP 435
EP 441
DI 10.1016/j.jnoncrysol.2010.06.072
PG 7
WC Materials Science, Ceramics; Materials Science, Multidisciplinary
SC Materials Science
GA 725JK
UT WOS:000287640800034
ER
PT J
AU Kwon, MJ
Yun, ST
Doh, SJ
Son, BK
Choi, K
Kim, W
AF Kwon, Man-Jae
Yun, Seong-Taek
Doh, Seong-Jae
Son, Byeong-Kook
Choi, Kyungsik
Kim, Wonnyon
TI Metal enrichment and magnetic properties of core sediments from the
eastern Yellow Sea, East Asia: Implications for paleo-depositional
change during the late Pleistocene/Holocene transition
SO QUATERNARY INTERNATIONAL
LA English
DT Article
ID GRAND LAC DANNECY; LATE QUATERNARY; PALEOENVIRONMENTAL CHANGES;
MARINE-SEDIMENTS; TRACE-METALS; RICH LAYERS; GEOTECHNICAL PROPERTIES;
ENVIRONMENTAL-CHANGES; DIAGENETIC FORMATION; HOLOCENE SEDIMENTS
AB To investigate the paleo-depositional environments, sediment cores YJI and YJ2 from a tidal flat of the eastern Yellow Sea were analyzed for the vertical variations of metal concentrations, particle size, clay mineralogy, magnetic properties, and total organic carbon content (TOC). Fe (and Mn) concentrations determined by both partial and total acid extraction increased at 15 m depth in YJ1 and 10 m in YJ2. The layer directly below these Fe-rich brownish horizons showed dramatic decreases in clay mineral content and trace metals (Zn, Pb, Cu, Cr, Co, Ni, and As), but increases in sand fraction, magnetic susceptibility, and TOC. All results were inverse in the upper metal-rich layer. These dramatic changes in multiparameters are likely due to an environmental change during the late Pleistocene/Holocene transition. The rapid environmental change (sand-rich and oxic -> clay-rich and anoxic) resulted in aqueous dissolution of redox-sensitive metals (e.g., Fe and Mn) from the lower sandy layer materials. The dissolved metals diffused upward and concomitantly were immobilized within the upper clay-rich layer. The reprecipitated Fe (or Mn) (hydro)oxides then scavenged trace metals by coprecipitation and/or adsorption. This study suggests that metal distribution patterns can provide new insights into the paleo-depositional processes during the Pleistocene-Holocene period. (C) 2009 Elsevier Ltd and INQUA. All rights reserved.
C1 [Kwon, Man-Jae; Yun, Seong-Taek; Doh, Seong-Jae; Kim, Wonnyon] Korea Univ, Dept Earth & Environm Sci, Seoul 136701, South Korea.
[Kwon, Man-Jae] Argonne Natl Lab, Biosci Div, Argonne, IL 60439 USA.
[Son, Byeong-Kook] Korea Inst Geosci & Mineral Resources, Taejon 305350, South Korea.
[Choi, Kyungsik] Chonnam Natl Univ, Dept Oceanog, Kwangju 500757, South Korea.
RP Yun, ST (reprint author), Korea Univ, Dept Earth & Environm Sci, 5 Ga, Seoul 136701, South Korea.
EM styun@korea.ac.kr
RI Kim, Wonnyon/G-7640-2011
FU Environmental Geosphere Research Lab (EGRL) of Korea University
FX This study was supported by Environmental Geosphere Research Lab (EGRL)
of Korea University. We deeply thank Emeritus Prof. Y.A. Park (Seoul
National University) for kindly providing two sediment cores used in
this study. Constructive comments and suggestions by Dr. Paul Liu, Dr.
Yoshiki Saito, and an anonymous reviewer were helpful to clarify and
improve this manuscript.
NR 86
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PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 1040-6182
J9 QUATERN INT
JI Quat. Int.
PD JAN 15
PY 2011
VL 230
IS 1-2
BP 95
EP 105
DI 10.1016/j.quaint.2009.07.027
PG 11
WC Geography, Physical; Geosciences, Multidisciplinary
SC Physical Geography; Geology
GA 717SF
UT WOS:000287067000011
ER
PT J
AU Lin, YH
AF Lin, Yuehe
TI Response to "Comments on "Sensitive immunoassays of nitrated fibrinogen
in human biofluids" by Tang et al."
SO TALANTA
LA English
DT Letter
C1 Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Lin, YH (reprint author), Pacific NW Natl Lab, 902 Battelle Blvd,POB 999, Richland, WA 99352 USA.
EM Yuehe.lin@pnl.gov
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PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0039-9140
J9 TALANTA
JI Talanta
PD JAN 15
PY 2011
VL 83
IS 3
BP 1064
EP 1064
DI 10.1016/j.talanta.2010.10.028
PG 1
WC Chemistry, Analytical
SC Chemistry
GA 710XI
UT WOS:000286549900052
ER
PT J
AU Rood, DH
Burbank, DW
Finkel, RC
AF Rood, Dylan H.
Burbank, Douglas W.
Finkel, Robert C.
TI Spatiotemporal patterns of fault slip rates across the Central Sierra
Nevada frontal fault zone
SO EARTH AND PLANETARY SCIENCE LETTERS
LA English
DT Article
DE fault slip rates; surface exposure dating; Be-10; Sierra Nevada; Walker
Lane
ID CALIFORNIA SHEAR ZONE; TRANSIENT STRAIN ACCUMULATION; GLOBAL POSITIONING
SYSTEM; WESTERN UNITED-STATES; NORTH AMERICA MOTION; CENTRAL WALKER
LANE; FISH SPRINGS FAULT; OWENS VALLEY FAULT; EASTERN CALIFORNIA; RANGE
PROVINCE
AB Patterns in fault slip rates through time and space are examined across the transition from the Sierra Nevada to the Eastern California Shear Zone-Walker Lane belt. At each of four sites along the eastern Sierra Nevada frontal fault zone between 38 and 39 degrees N latitude, geomorphic markers, such as glacial moraines and outwash terraces, are displaced by a suite of range-front normal faults. Using geomorphic mapping, surveying, and Be-10 surface exposure dating, mean fault slip rates are defined, and by utilizing markers of different ages (generally, similar to 20 ka and similar to 150 ka), rates through time and interactions among multiple faults are examined over 10(4)-10(5) year timescales.
At each site for which data are available for the last similar to 150 ky, mean slip rates across the Sierra Nevada frontal fault zone have probably not varied by more than a factor of two over time spans equal to half of the total time interval (similar to 20 ky and similar to 150 ky timescales): 03 +/- 0.1 mm year(-1) (mode and 95% CI) at both Buckeye Creek in the Bridgeport basin and Sonora Junction; and 0.4 + 03/-0.1 mm year(-1) along the West Fork of the Carson River at Woodfords. Data permit rates that are relatively constant over the time scales examined. In contrast, slip rates are highly variable in space over the last similar to 20 ky. Slip rates decrease by a factor of 3-5 northward over a distance of similar to 20 km between the northern Mono Basin (1.3 + 0.61-03 mm year(-1) at Lundy Canyon site) to the Bridgeport Basin (03 +/- 0.1 mm year(-1)). The 3-fold decrease in the slip rate on the Sierra Nevada frontal fault zone northward from Mono Basin is indicative of a change in the character of faulting north of the Mina Deflection as extension is transferred eastward onto normal faults between the Sierra Nevada and Walker Lane belt.
A compilation of regional deformation rates reveals that the spatial pattern of extension rates changes along strike of the Eastern California Shear Zone-Walker Lane belt South of the Mina Deflection, extension is accommodated within a diffuse zone of normal and oblique faults, with extension rates increasing northward on the Fish Lake Valley fault Where faults of the Eastern California Shear Zone terminate northward into the Mina Deflection, extension rates increase northward along the Sierra Nevada frontal fault zone to similar to 0.7 mm year(-1) in northern Mono Basin. This spatial pattern suggests that extension is transferred from more easterly fault systems, e.g., Fish Lake Valley fault, and localized on the Sierra Nevada frontal fault zone as the Eastern California Shear Zone-Walker Lane belt faulting is transferred through the Mina Deflection. (C) 2010 Elsevier B.V. All rights reserved.
C1 [Rood, Dylan H.] Lawrence Livermore Natl Lab, Ctr Accelerator Mass Spectrometry, Livermore, CA 94550 USA.
[Rood, Dylan H.; Burbank, Douglas W.] Univ Calif Santa Barbara, Dept Earth Sci, Santa Barbara, CA 93106 USA.
[Finkel, Robert C.] CEREGE, Aix En Provence, France.
[Finkel, Robert C.] Univ Calif Berkeley, Dept Earth & Planetary Sci, Berkeley, CA 94720 USA.
RP Rood, DH (reprint author), Lawrence Livermore Natl Lab, Ctr Accelerator Mass Spectrometry, Livermore, CA 94550 USA.
EM rood5@llnl.gov
FU LLNL; GSA; US Department of Energy by Lawrence Livermore National
Laboratory [DE-AC52-07NA27344]
FX We thank Lewis Owen and Steve Wesnousky for constructive reviews of the
manuscript. Phil Gans and Bodo Bookhagen provided useful comments on an
early draft. We also thank Scott Herman, Colin Amos, Steve DeOreo, Willy
Amidon, Adam Avakian, Matt Purvance, Alan Ramelli, and Daisy Rood for
assistance in the field. We are grateful to Alan Ramelli for providing
the total station survey data at Woodfords. Special thanks to Malcolm
Clark, Angela Jayko, Doug Clark, Bob Curry, and Burt Slemmons for all
their help and insights concerning the Quaternary of the Sierra Nevada.
DR is grateful for the mentorship of Tom Brown and Tom Guilderson at the
Center for Accelerator Mass Spectrometry at Lawrence Livermore National
Laboratory (LLNL) during 10Be measurements. Funding was
provided by a LLNL Lawrence Scholar Program (LSP) Fellowship and a GSA
Graduate Student Research Grant (to DR). This work was performed under
the auspices of the US Department of Energy by Lawrence Livermore
National Laboratory under Contract DE-AC52-07NA27344.
NR 81
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PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0012-821X
J9 EARTH PLANET SC LETT
JI Earth Planet. Sci. Lett.
PD JAN 15
PY 2011
VL 301
IS 3-4
BP 457
EP 468
DI 10.1016/j.epsl.2010.11.006
PG 12
WC Geochemistry & Geophysics
SC Geochemistry & Geophysics
GA 717TL
UT WOS:000287070200005
ER
PT J
AU Dinh, LN
Haschke, JM
Saw, CK
Allen, PG
McLean, W
AF Dinh, L. N.
Haschke, J. M.
Saw, C. K.
Allen, P. G.
McLean, W., II
TI Pu2O3 and the plutonium hydriding process
SO JOURNAL OF NUCLEAR MATERIALS
LA English
DT Article
ID URANIUM-DIOXIDE; HYDROGEN; DIFFUSION; OXIDATION; MONOXIDE; KINETICS
AB The role of cubic Pu2O3 in the corrosion of PuO2-coated Pu by H-2 was investigated. Experiments were conducted to demonstrate that nucleation of hydriding is promoted by formation of Pu2O3 sites in the oxide layer. The nucleation mechanism based on diffusion of hydrogen through the PuO2 layer was evaluated and an alternative mechanism based on formation of catalytic Pu2O3 sites via the Pu-PuO2 reaction is proposed. The possibility of active participation of other impurities and inclusions in the dioxide is also discussed. Published by Elsevier B.V.
C1 [Dinh, L. N.; Haschke, J. M.; Saw, C. K.; Allen, P. G.; McLean, W., II] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
RP Dinh, LN (reprint author), Lawrence Livermore Natl Lab, 7000 E Ave,Mail Stop L091, Livermore, CA 94551 USA.
EM Dinh1@llnl.gov
FU US Department of Energy by Lawrence Livermore National Laboratory
[DE-AC52-07NA27344]
FX The very helpful and instructive discussion with Dr. W.J. Siekhaus is
greatly appreciated. This work performed under the auspices of the US
Department of Energy by Lawrence Livermore National Laboratory under
Contract DE-AC52-07NA27344.
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PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0022-3115
J9 J NUCL MATER
JI J. Nucl. Mater.
PD JAN 15
PY 2011
VL 408
IS 2
BP 171
EP 175
DI 10.1016/j.jnucmat.2010.11.026
PG 5
WC Materials Science, Multidisciplinary; Nuclear Science & Technology
SC Materials Science; Nuclear Science & Technology
GA 714DW
UT WOS:000286788700006
ER
PT J
AU Taylor, CD
AF Taylor, Christopher D.
TI Surface segregation and adsorption effects of iron-technetium alloys
from first-principles
SO JOURNAL OF NUCLEAR MATERIALS
LA English
DT Article
ID OXYGEN-ADSORPTION; TRANSITION; WATER; DISSOLUTION; MICROSCOPY;
INTERFACE; OXIDATION; ELECTRODE; METALS
AB Surface properties of Tc-rich and Fe-rich portions of the Tc-Fe binary alloy phase diagram were computed in this work on the basis of density functional theory. Tc and Fe were found to have minimal degrees of mixing in the parent phases, consistent with the experimentally derived phase diagram. The influence of oxygen on surface phase stability was also studied, with no significant impact on surface segregation or degree of surface mixing. Oxygen adsorption was shown to change the ordering of surface facets in Tc, such that the pyramidal phase becomes lower in energy than the prismatic phase, even with low coverage of oxygen. No evidence for increased surface segregation upon oxidation was found for the solid-solution phases. A potential pH surface Pourbaix diagram was derived for Tc and H, OH and 0 adsorbed sub-monolayers were shown to be precursors to oxide formation. While Tc and Fe have similar reactivities and properties in their parent phases, and hence, also in solid-solution, the properties of the intermetallic are expected to be significantly different due to the size-mismatch between the elements. (C) 2010 Elsevier BM. All rights reserved.
C1 Los Alamos Natl Lab, Div Mat Sci, Los Alamos, NM 87545 USA.
RP Taylor, CD (reprint author), Los Alamos Natl Lab, Div Mat Sci, POB 1663, Los Alamos, NM 87545 USA.
EM cdtaylor@lanl.gov
FU Los Alamos National Laboratory; US Department of Energy (DOE), Office of
Nuclear Energy; Office of Science of the US Department of Energy
[DE-AC05-00OR22725]; US Department of Energy [AC52-06NA25396]
FX Drs. Dave Kolman, Gordon Jarvinen, Dave Moore, and Scott Lillard at Los
Alamos National Laboratory are acknowledged for helpful discussions and
support. We acknowledge the US Department of Energy (DOE), Office of
Nuclear Energy for financial support of this research under the Fuel
Cycle Research and Development Program. This research used resources of
the Oak Ridge Leadership Facility at the Oak Ridge National Laboratory,
which is supported by the Office of Science of the US Department of
Energy under Contract No. DE-AC05-00OR22725. Institutional Computing
Resources at Los Alamos National Laboratory are also acknowledged. The
Los Alamos National Laboratory is operated by Los Alamos National
Security LLC for the National Nuclear Security Administration of the US
Department of Energy under Contract DE-AC52-06NA25396.
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PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0022-3115
J9 J NUCL MATER
JI J. Nucl. Mater.
PD JAN 15
PY 2011
VL 408
IS 2
BP 183
EP 187
DI 10.1016/j.jnucmat.2010.11.032
PG 5
WC Materials Science, Multidisciplinary; Nuclear Science & Technology
SC Materials Science; Nuclear Science & Technology
GA 714DW
UT WOS:000286788700008
ER
PT J
AU Usov, IO
Won, J
Devlin, DJ
Jiang, YB
Valdez, JA
Sickafus, KE
AF Usov, I. O.
Won, J.
Devlin, D. J.
Jiang, Y. -B.
Valdez, J. A.
Sickafus, K. E.
TI A novel method for incorporating fission gas elements into solids
SO JOURNAL OF NUCLEAR MATERIALS
LA English
DT Article
ID ION-ASSISTED DEPOSITION; FILMS; FUEL
AB A novel method for the fabrication of test samples for fission gas behavior studies is described. We applied the technique of ion beam assisted deposition (IBAD) as a means to introduce Xe atoms into alumina (Al(2)O(3)) films. We then investigated the redistribution of Xe atoms and microstructural evolution induced by annealing. Transmission electron microscopy analysis revealed that the microstructure of our Al(2)O(3)-Xe IBAD films resemble characteristic microstructural features associated with fission gas accumulation in reactor-irradiated nuclear fuels. (C) 2010 Elsevier B.V. All rights reserved.
C1 [Usov, I. O.; Won, J.; Devlin, D. J.; Valdez, J. A.; Sickafus, K. E.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Jiang, Y. -B.] Univ New Mexico, Albuquerque, NM 87131 USA.
RP Usov, IO (reprint author), Los Alamos Natl Lab, Mail Stop K763, Los Alamos, NM 87545 USA.
EM iusov@lanl.gov
OI won, Jonghan/0000-0002-7612-1322
FU US Department of Energy Office of Basic Energy Sciences, Division of
Materials Sciences and Engineering; Los Alamos National Laboratory,
Laboratory Directed Research and Development (LDRD)
FX This work was supported by the US Department of Energy Office of Basic
Energy Sciences, Division of Materials Sciences and Engineering and by a
Los Alamos National Laboratory, Laboratory Directed Research and
Development (LDRD) Grant. RBS analysis was performed at the Ion Beam
Materials Laboratory (IBML) at Los Alamos National Laboratory and
HADDF/STEM observation was performed at the University of New Mexico
(UNM). The authors would like to thank J. Tesmer, R. Greco and Y. Wang
from the IBML facility, and Ying-Bing Jiang from UNM for their technical
assistance.
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PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0022-3115
J9 J NUCL MATER
JI J. Nucl. Mater.
PD JAN 15
PY 2011
VL 408
IS 2
BP 205
EP 208
DI 10.1016/j.jnucmat.2010.11.008
PG 4
WC Materials Science, Multidisciplinary; Nuclear Science & Technology
SC Materials Science; Nuclear Science & Technology
GA 714DW
UT WOS:000286788700012
ER
PT J
AU Davis, MC
Wesolowski, DJ
Rosenqvist, J
Brantley, SL
Mueller, KT
AF Davis, Michael C.
Wesolowski, David J.
Rosenqvist, Joergen
Brantley, Susan L.
Mueller, Karl T.
TI Solubility and near-equilibrium dissolution rates of quartz in dilute
NaCl solutions at 398-473 K under alkaline conditions
SO GEOCHIMICA ET COSMOCHIMICA ACTA
LA English
DT Article
ID SODIUM-CHLORIDE SOLUTIONS; HIGH-TEMPERATURE SOLUBILITY; IN-SITU
MEASUREMENTS; PRECIPITATION KINETICS; ELECTROLYTE-SOLUTIONS;
IONIC-STRENGTH; ORGANIC-ACIDS; PH; 25-DEGREES-C; MODEL
AB The dissolution precipitation of quartz controls porosity and permeability in many lithologies and may be the best studied mineral-water reaction. However, the rate of quartz-water reaction is relatively well characterized far from equilibrium but relatively unexplored near equilibrium. We present kinetic data for quartz as equilibrium is approached from undersaturation and more limited data on the approach from supersaturated conditions in 0.1 molal NaCl + NaOH + NaSiO(OH)(3) solutions with pH 8.2-9.7 at 398, 423, 448, and 473 K. We employed a potentiometric technique that allows precise determination of solution speciation within 2 kJ mol(-1) of equilibrium without the need for to perturb the system through physical sampling and chemical analysis. Slightly higher equilibrium solubilities between 423 and 473 K were found than reported in recent compilations. Apparent activation energies of 29 and 37 kJ mol(-1) are inferred for rates of dissolution at two surface sites with different values of connectedness: dissolution at Q(1) or Q(2) silicon sites, respectively. The dissolution mechanism varies with Delta G such that reactions at both sites control dissolution up until a critical free energy value above which only reactions at Q(1) sites are important. When our near-equilibrium dissolution rates are extrapolated far from equilibrium, they agree within propagated uncertainty at 398 K with a recently published model by Bickmore et al. (2008). However, our extrapolated rates become progressively slower than model predictions with increasing temperature. Furthermore, we see no dependence of the postulated Q(1) reaction rate on pH, and a poorly-constrained pH dependence of the postulated Q(2) rate. Our slow extrapolated rates are presumably related to the increasing contribution of dissolution at Q(3) sites far from equilibrium. The use of the potentiometric technique for rate measurement will yield both rate data and insights into the mechanisms of dissolution over a range of chemical affinity. Such measurements are needed to model the evolution of many natural systems quantitatively. (C) 2010 Elsevier Ltd. All rights reserved.
C1 [Davis, Michael C.; Mueller, Karl T.] Penn State Univ, Dept Chem, University Pk, PA 16802 USA.
[Wesolowski, David J.; Rosenqvist, Joergen] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA.
[Brantley, Susan L.] Penn State Univ, Dept Geosci, University Pk, PA 16802 USA.
RP Mueller, KT (reprint author), Penn State Univ, Dept Chem, University Pk, PA 16802 USA.
EM ktm2@psu.edu
RI Mueller, Karl/A-3637-2010
FU Environmental Molecular Sciences Institute at Penn State; Center for
Environmental Kinetics Analysis [NSF CHE-0431328]; DOE
[DE-FG02-05ER15675]; National Science Foundation [CHE-0535656]; Division
of Chemical Sciences, Geosciences, and Biosciences, Office of Basic
Energy Sciences, U.S. Department of Energy [ERKCC72]; U.S. Department of
Energy [DE-AC05-00OR22725]
FX M.C.D., S.L.B., and K.T.M. acknowledge funding through the Environmental
Molecular Sciences Institute at Penn State, the Center for Environmental
Kinetics Analysis (NSF CHE-0431328). S.L.B. also acknowledges funding
from DOE DE-FG02-05ER15675 while K.T.M. also acknowledges funding from
the National Science Foundation through Grant CHE-0535656. D.J.W. and
J.R. acknowledge the Division of Chemical Sciences, Geosciences, and
Biosciences, Office of Basic Energy Sciences, U.S. Department of Energy
through Grant #ERKCC72 to Oak Ridge National Laboratory, which is
managed by UT-Battelle, LLC for the U.S. Department of Energy under
Contract DE-AC05-00OR22725.
NR 54
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PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0016-7037
J9 GEOCHIM COSMOCHIM AC
JI Geochim. Cosmochim. Acta
PD JAN 15
PY 2011
VL 75
IS 2
BP 401
EP 415
DI 10.1016/j.gca.2010.10.023
PG 15
WC Geochemistry & Geophysics
SC Geochemistry & Geophysics
GA 708GF
UT WOS:000286349600005
ER
PT J
AU Xiao, JF
Zhuang, QL
Law, BE
Baldocchi, DD
Chen, JQ
Richardson, AD
Melillo, JM
Davis, KJ
Hollinger, DY
Wharton, S
Oren, R
Noormets, A
Fischer, ML
Verma, SB
Cook, DR
Sun, G
McNulty, S
Wofsy, SC
Bolstad, PV
Burns, SP
Curtis, PS
Drake, BG
Falk, M
Foster, DR
Gu, LH
Hadley, JL
Katulk, GG
Litvak, M
Ma, SY
Martinz, TA
Matamala, R
Meyers, TP
Monson, RK
Munger, JW
Oechel, WC
Paw, UKT
Schmid, HP
Scott, RL
Starr, G
Suyker, AE
Torn, MS
AF Xiao, Jingfeng
Zhuang, Qianlai
Law, Beverly E.
Baldocchi, Dennis D.
Chen, Jiquan
Richardson, Andrew D.
Melillo, Jerry M.
Davis, Kenneth J.
Hollinger, David Y.
Wharton, Sonia
Oren, Ram
Noormets, Asko
Fischer, Marc L.
Verma, Shashi B.
Cook, David R.
Sun, Ge
McNulty, Steve
Wofsy, Steven C.
Bolstad, Paul V.
Burns, Sean P.
Curtis, Peter S.
Drake, Bert G.
Falk, Matthias
Foster, David R.
Gu, Lianhong
Hadley, Julian L.
Katulk, Gabriel G.
Litvak, Marcy
Ma, Siyan
Martinz, Timothy A.
Matamala, Roser
Meyers, Tilden P.
Monson, Russell K.
Munger, J. William
Oechel, Walter C.
Paw, U. Kyaw Tha
Schmid, Hans Peter
Scott, Russell L.
Starr, Gregory
Suyker, Andrew E.
Torn, Margaret S.
TI Assessing net ecosystem carbon exchange of U.S. terrestrial ecosystems
by integrating eddy covariance flux measurements and satellite
observations
SO AGRICULTURAL AND FOREST METEOROLOGY
LA English
DT Article
DE Net ecosystem carbon exchange; Eddy covariance; MODIS; Carbon sink; U S;
Interannual variability; Drought; Disturbance
ID SURFACE-TEMPERATURE; SOIL RESPIRATION; DIOXIDE EXCHANGE; UNITED-STATES;
WATER-VAPOR; FORESTS; MODIS; VEGETATION; CO2; DISTURBANCE
AB More accurate projections of future carbon dioxide concentrations in the atmosphere and associated climate change depend on improved scientific understanding of the terrestrial carbon cycle. Despite the consensus that U.S. terrestrial ecosystems provide a carbon sink, the size, distribution, and interannual variability of this sink remain uncertain. Here we report a terrestrial carbon sink in the conterminous U.S. at 0.63 pg C yr(-1) with the majority of the sink in regions dominated by evergreen and deciduous forests and savannas. This estimate is based on our continuous estimates of net ecosystem carbon exchange (NEE) with high spatial (1 km) and temporal (8-day) resolutions derived from NEE measurements from eddy covariance flux towers and wall-to-wall satellite observations from Moderate Resolution Imaging Spectroradiometer (MODIS). We find that the U.S. terrestrial ecosystems could offset a maximum of 40% of the fossil-fuel carbon emissions Our results show that the U.S. terrestrial carbon sink varied between 0.51 and 0.70 pg C yr(-1) over the period 2001-2006. The dominant sources of interannual variation of the carbon sink Included extreme climate events and disturbances. Droughts in 2002 and 2006 reduced the U.S. carbon sink by similar to 20% relative to a normal year. Disturbances including wildfires and hurricanes reduced carbon uptake or resulted in carbon release at regional scales. Our results provide an alternative, independent, and novel constraint to the U.S. terrestrial carbon sink. (C) 2010 Elsevier B.V. All rights reserved
C1 [Zhuang, Qianlai] Purdue Univ, Dept Earth & Atmospher Sci, Purdue Climate Change Res Ctr, Dept Agron, W Lafayette, IN 47907 USA.
[Law, Beverly E.] Oregon State Univ, Coll Forestry, Corvallis, OR 97331 USA.
[Baldocchi, Dennis D.; Ma, Siyan] Univ Calif Berkeley, Ecosyst Sci Div, Dept Environm Sci Policy & Management, Berkeley, CA 94720 USA.
[Chen, Jiquan] Univ Toledo, Dept Environm Sci, Toledo, OH 43606 USA.
[Richardson, Andrew D.] Harvard Univ, Dept Organism & Evolutionary Biol, Cambridge, MA 02138 USA.
[Melillo, Jerry M.] Marine Biol Lab, Ctr Ecosyst, Woods Hole, MA 02543 USA.
[Davis, Kenneth J.] Penn State Univ, Dept Meteorol, University Pk, PA 16802 USA.
[Hollinger, David Y.] US Forest Serv, USDA, NE Res Stn, Durham, NH 03824 USA.
[Wharton, Sonia; Falk, Matthias; Paw, U. Kyaw Tha] Univ Calif Davis, Dept Land Air & Water Resources, Davis, CA 95616 USA.
[Oren, Ram; Katulk, Gabriel G.] Duke Univ, Nicholas Sch Environm, Durham, NC 27708 USA.
[Noormets, Asko] N Carolina State Univ, Dept Forestry & Environm Resources, Raleigh, NC 27695 USA.
[Noormets, Asko] N Carolina State Univ, So Global Change Program, Raleigh, NC 27695 USA.
[Fischer, Marc L.] Lawrence Berkeley Natl Lab, Environm Energy Technol Div, Dept Atmospher Sci, Berkeley, CA 94720 USA.
[Verma, Shashi B.; Suyker, Andrew E.] Univ Nebraska, Sch Nat Resources, Lincoln, NE 68583 USA.
[Cook, David R.] Argonne Natl Lab, Div Environm Sci, Argonne, IL 60439 USA.
[Sun, Ge; McNulty, Steve] US Forest Serv, USDA, So Res Stn, Raleigh, NC 27606 USA.
[Wofsy, Steven C.] Harvard Univ, Div Engn & Appl Sci, Dept Earth & Planetary Sci, Cambridge, MA 02138 USA.
[Bolstad, Paul V.] Univ Minnesota, Dept Forest Resources, St Paul, MN 55108 USA.
[Burns, Sean P.; Monson, Russell K.] Univ Colorado, Dept Ecol & Evolutionary Biol, Boulder, CO 80309 USA.
[Curtis, Peter S.] Ohio State Univ, Dept Evolut Ecol & Organismal Biol, Columbus, OH 43210 USA.
[Drake, Bert G.] Smithsonian Environm Res Ctr, Edgewater, MD 21037 USA.
[Foster, David R.] Harvard Univ, Dept Organism & Evolutionary Biol, Petersham, MA 01366 USA.
[Gu, Lianhong] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
[Foster, David R.; Hadley, Julian L.] Harvard Univ, Harvard Forest, Petersham, MA 01366 USA.
[Litvak, Marcy] Univ New Mexico, Dept Biol, Albuquerque, NM 87131 USA.
[Martinz, Timothy A.] Univ Florida, Sch Forest Resources & Conservat, Gainesville, FL 32611 USA.
[Matamala, Roser] Argonne Natl Lab, Biosci Div, Argonne, IL 60439 USA.
[Meyers, Tilden P.] NOAA ARL, Atmospher Turbulence & Diffus Div, Oak Ridge, TN 37831 USA.
[Oechel, Walter C.] San Diego State Univ, Dept Biol, San Diego, CA 92182 USA.
[Schmid, Hans Peter] Indiana Univ, Dept Geol, Bloomington, IN 47405 USA.
[Schmid, Hans Peter] Res Ctr Karlsruhe FZK IMK IFU, Inst Meteorol & Climate Res, D-82467 Garmisch Partenkirchen, Germany.
[Scott, Russell L.] ARS, USDA, SW Watershed Res Ctr, Tucson, AZ 85719 USA.
[Starr, Gregory] Univ Alabama, Dept Biol Sci, Tuscaloosa, AL 35487 USA.
[Torn, Margaret S.] Lawrence Berkeley Natl Lab, Div Earth Sci, Berkeley, CA 94720 USA.
RP Xiao, JF (reprint author), Univ New Hampshire, Complex Syst Res Ctr, Durham, NH 03824 USA.
RI Gu, Lianhong/H-8241-2014; Law, Beverly/G-3882-2010; Oechel,
Walter/F-9361-2010; Garmisch-Pa, Ifu/H-9902-2014; Chen,
Jiquan/D-1955-2009; Burns, Sean/A-9352-2008; Noormets, Asko/A-7257-2009;
Richardson, Andrew/F-5691-2011; Zhuang, Qianlai/A-5670-2009; Baldocchi,
Dennis/A-1625-2009; Torn, Margaret/D-2305-2015; Meyers,
Tilden/C-6633-2016; Hollinger, David/G-7185-2012; Schmid, Hans
Peter/I-1224-2012; Munger, J/H-4502-2013
OI Gu, Lianhong/0000-0001-5756-8738; Law, Beverly/0000-0002-1605-1203;
Martin, Timothy/0000-0002-7872-4194; Oechel, Walter/0000-0002-3504-026X;
Burns, Sean/0000-0002-6258-1838; Noormets, Asko/0000-0003-2221-2111;
Richardson, Andrew/0000-0002-0148-6714; Baldocchi,
Dennis/0000-0003-3496-4919; Schmid, Hans Peter/0000-0001-9076-4466;
Munger, J/0000-0002-1042-8452
FU National Science Foundation (NSF); Department of Energy (DOE)
FX This study was supported by grants from the National Science Foundation
(NSF) and Department of Energy (DOE) We thank the principal
investigators and contributors of the MODIS data products the Oak Ridge
National Laboratory (ORNL) Distributed Active Archive Center (DACCC) and
the Earth Observing System (EOS) Data Gateway for making these MODIS
data products available The Level I Ecoregions map of North America was
obtained from Environmental Protection Agency (EPA) the Biscuit fire
severity data from J Thompson Harvard University and the PRISM climate
database from the PRISM Group Oregon State University Computing support
was provided by the Rosen Center for Advanced Computing Purdue
University We also thank anonymous reviewers and Dr Anne Verhoef for
their valuable comments on earlier versions of the manuscript [The
EC-MOD dataset is available upon request]
NR 54
TC 80
Z9 84
U1 2
U2 77
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-1923
EI 1873-2240
J9 AGR FOREST METEOROL
JI Agric. For. Meteorol.
PD JAN 15
PY 2011
VL 151
IS 1
BP 60
EP 69
DI 10.1016/j.agrformet.2010.09.002
PG 10
WC Agronomy; Forestry; Meteorology & Atmospheric Sciences
SC Agriculture; Forestry; Meteorology & Atmospheric Sciences
GA 694UV
UT WOS:000285325400006
ER
PT J
AU Walworth, MJ
Stankovich, JJ
Van Berkel, GJ
Schulz, M
Minarik, S
Nichols, J
Reich, E
AF Walworth, Matthew J.
Stankovich, Joseph J.
Van Berkel, Gary J.
Schulz, Michael
Minarik, Susanne
Nichols, Judy
Reich, Eike
TI Hydrophobic Treatment Enabling Analysis of Wettable Surfaces Using a
Liquid Microjunction Surface Sampling Probe/Electrospray Ionization-Mass
Spectrometry System
SO ANALYTICAL CHEMISTRY
LA English
DT Article
ID THIN-LAYER-CHROMATOGRAPHY; TRYPTIC PROTEIN DIGESTS; PEPTIDE
IDENTIFICATION; PROBE; SEPARATIONS; DEVICE; MS
AB An aerosol application procedure involving one or more commercially available silicone-based products was developed to create hydrophobic surfaces that enable analysis of otherwise wettable, absorbent surfaces using a liquid microjunction surface sampling probe/electrospray ionization mass spectrometry system. The treatment process resulted in a hydrophobic surface that enabled formation of the requisite probe-to-surface liquid microjunction for sampling and allowed efficient extraction of the analytes from the surface, but did not contribute significant chemical background in the mass spectra. The utility of this treatment process was demonstrated with the treatment of wettable high-performance thin layer chromatography plates, post-plate development, and their subsequent analysis with the sampling probe. The surface treatment process for different surface types was described and explained and the effectiveness of the treatment and subsequent analysis was illustrated using alkaloids from goldenseal (Hydrastis canadensis) root separated on a normal phase silica gel 60 F(254S) plate and peptides from protein tryptic digests separated on a ProteoChrom HPTLC Silica gel 60 F254S plate and a ProteoChrom HPTLC Cellulose sheet. This simple surface treatment process significantly expands the analytical surfaces that can be analyzed with the liquid microjunction surface sampling probe, and therefore, also expands the analytical utility of this liquid extraction based surface sampling approach.
C1 [Walworth, Matthew J.; Stankovich, Joseph J.; Van Berkel, Gary J.] Oak Ridge Natl Lab, Div Chem Sci, Organ & Biol Mass Spectrometry Grp, Oak Ridge, TN 37831 USA.
[Walworth, Matthew J.] Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA.
[Schulz, Michael; Minarik, Susanne] Merck KGaA, Thin Layer Chromatog Lab, Performance & Life Sci Chem, D-64293 Darmstadt, Germany.
[Nichols, Judy] CAMAG Sci Inc, Wilmington, NC 28401 USA.
[Reich, Eike] CAMAG Lab, Muttenz, Switzerland.
RP Van Berkel, GJ (reprint author), Oak Ridge Natl Lab, Div Chem Sci, Organ & Biol Mass Spectrometry Grp, Oak Ridge, TN 37831 USA.
EM vanberkelgj@ornl.gov
FU U.S. Department of Energy [DE-AC05-06OR23100, DE-AC05-00OR22725]; Oak
Ridge Associated Universities [DE-AC05-06OR23100]; Division of Chemical
Sciences, Geosciences, and Biosciences, Office of Basic Energy Sciences,
United States Department of Energy; Battelle Memorial Institute
Technology
FX J.J.S. acknowledges an appointment to the Science Undergraduate
Laboratory Internship (SULI) and the Higher Education Research
Experience (HERE) programs, administered by the Oak Ridge Institute for
Science and Education under contract no. DE-AC05-06OR23100 between the
U.S. Department of Energy and Oak Ridge Associated Universities.
Fundamental studies and implementation of the surface treatment process
to enable sampling from wettable surfaces with the LMJ-SSP was funded by
the Division of Chemical Sciences, Geosciences, and Biosciences, Office
of Basic Energy Sciences, United States Department of Energy. Funding
for demonstrations of the particular applications was provided by the
Battelle Memorial Institute Technology Maturation Fund. ORNL is managed
by UT-Battelle, LLC for the U.S. Department of Energy under contract
DE-AC05-00OR22725.
NR 30
TC 19
Z9 21
U1 1
U2 23
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0003-2700
J9 ANAL CHEM
JI Anal. Chem.
PD JAN 15
PY 2011
VL 83
IS 2
BP 591
EP 597
DI 10.1021/ac102634e
PG 7
WC Chemistry, Analytical
SC Chemistry
GA 705LL
UT WOS:000286129800018
PM 21158402
ER
PT J
AU Ovchinnikova, OS
Kertesz, V
Van Berkel, GJ
AF Ovchinnikova, Olga S.
Kertesz, Vilmos
Van Berkel, Gary J.
TI Molecular Surface Sampling and Chemical Imaging using Proximal Probe
Thermal Desorption/Secondary Ionization Mass Spectrometry
SO ANALYTICAL CHEMISTRY
LA English
DT Article
ID ABLATION ELECTROSPRAY-IONIZATION; THIN-LAYER-CHROMATOGRAPHY;
ATMOSPHERIC-PRESSURE; AMBIENT CONDITIONS; DESI
AB Proximal probe thermal desorption/secondary ionization mass spectrometry was studied and applied to molecular surface sampling and chemical imaging using printed patterns on photopaper as test substrates. With the use of a circular cross section proximal probe with a tip diameter of 50 mu m and fixed temperature (350 degrees C), the influence of probe-to-surface distance, lane scan spacing, and surface scan speed on signal quality and spatial resolution were studied and optimized. As a compromise between signal amplitude, signal reproducibility, and data acquisition time, a surface scan speed of 100 mu m/s, probe-to-paper surface distance of 5 mu m, and lane spacing of 10 mu m were used for imaging. Under those conditions the proximal probe thermal desorption/secondary ionization mass spectrometry method was able to achieve a spatial resolution of about 50 mu m as determined by the ability to distinguish surface patterns of known dimensions that were printed on the paper substrate. It is expected that spatial resolution and chemical image quality could be further improved by using probes of smaller cross section size and by incorporating a means to maintain a fixed optimal probe-to-surface distance real time, continuously adapting to the changing topography of the surface during a lane scan.
C1 [Ovchinnikova, Olga S.; Kertesz, Vilmos; Van Berkel, Gary J.] Oak Ridge Natl Lab, Div Chem Sci, Organ & Biol Mass Spectrometry Grp, Oak Ridge, TN 37831 USA.
[Ovchinnikova, Olga S.; Van Berkel, Gary J.] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA.
RP Van Berkel, GJ (reprint author), Oak Ridge Natl Lab, Div Chem Sci, Organ & Biol Mass Spectrometry Grp, Oak Ridge, TN 37831 USA.
EM vanberkelgj@ornl.gov
RI Kertesz, Vilmos/M-8357-2016
OI Kertesz, Vilmos/0000-0003-0186-5797
FU Division of Chemical Sciences, Geosciences, and Biosciences, Office of
Basic Energy Sciences, United States Department of Energy; U.S.
Department of Energy [DE-AC05-00OR22725]
FX Michael Balogh at Waters Corporation is thanked for the loan of the TQD
mass spectrometer as part of a Beta Test agreement. Leslie Wilson is
thanked for running the SEM as well as for help with operating the
profilometer. This work was supported by the Division of Chemical
Sciences, Geosciences, and Biosciences, Office of Basic Energy Sciences,
United States Department of Energy. Oak Ridge National Laboratory is
managed by UT-Battelle, LLC for the U.S. Department of Energy under
contract DE-AC05-00OR22725.
NR 19
TC 19
Z9 19
U1 6
U2 30
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0003-2700
J9 ANAL CHEM
JI Anal. Chem.
PD JAN 15
PY 2011
VL 83
IS 2
BP 598
EP 603
DI 10.1021/ac102766w
PG 6
WC Chemistry, Analytical
SC Chemistry
GA 705LL
UT WOS:000286129800019
PM 21158396
ER
PT J
AU Salazar-Villalpando, MD
Miller, AC
AF Salazar-Villalpando, Maria D.
Miller, Adam C.
TI Hydrogen production by methane decomposition and catalytic partial
oxidation of methane over Pt/CexGd1 (-) O-x(2) and Pt/CexZr1 (-) O-x(2)
SO CHEMICAL ENGINEERING JOURNAL
LA English
DT Article
DE Partial oxidation of methane; Zirconia doped ceria; Hydrogen production;
Methane decomposition; Gadolinium doped ceria
ID OXYGEN STORAGE CAPACITY; TRIVALENT DOPANTS; SYNTHESIS GAS; CERIUM OXIDE;
REDOX; TRANSPORT; CEO2; CONDUCTIVITY; SYNGAS; RH
AB Hydrogen production by methane decomposition and catalytic partial oxidation of methane (CPOM) over Pt/(Ce0.91Gd0.09)O-2 (-) (x) and Pr/(Ce0.56Zr0.44)O2 - x were studied. Results show that during the methane decomposition tests, in the absence of gaseous oxygen, hydrogen and CO were the main products and very small quantities of CO2 were recorded. The generation of these products lasted for about 2 h, indicating that in the catalytic stability of these materials, the carrier plays an important factor. The addition of Gd and Zr cations to ceria had a positive effect on the catalysts stability. Regarding the catalytic partial oxidation of methane, a stable hydrogen production was recorded for 20 h. Here, it is proposed that the formation of a Pt-O-Ce bond causes high stability of Pt in Ce-containing supports under oxidizing conditions at high temperatures because this bond may act as an anchor, inhibiting the sintering of Pt. The deposited carbon during the catalytic tests was oxidized and the CO2 profiles showed a sharper peak appearing at a lower temperature and a broader peak at the higher temperature. The first peak may correspond to the oxidation of coke on and in the vicinity of the metal and the second CO2 peak may represent the coke on the carrier. The CPOM as a function of O/C ratio was studied. It was observed that the catalyst with a higher ionic conductivity, Pt/(Ce0.91Gd0.09)O-2 (-) (x), generated a lower amount of deposited carbon. Published by Elsevier B.V.
C1 [Salazar-Villalpando, Maria D.] USDA, Natl Energy Technol Lab, Morgantown, WV 26507 USA.
[Miller, Adam C.] W Virginia Univ, Dept Chem Engn, Morgantown, WV 26506 USA.
RP Salazar-Villalpando, MD (reprint author), USDA, Natl Energy Technol Lab, 3610 Collins Ferry Rd, Morgantown, WV 26507 USA.
EM maria.salazar@netl.doe.gov
NR 34
TC 8
Z9 8
U1 0
U2 20
PU ELSEVIER SCIENCE SA
PI LAUSANNE
PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND
SN 1385-8947
EI 1873-3212
J9 CHEM ENG J
JI Chem. Eng. J.
PD JAN 15
PY 2011
VL 166
IS 2
BP 738
EP 743
DI 10.1016/j.cej.2010.11.076
PG 6
WC Engineering, Environmental; Engineering, Chemical
SC Engineering
GA 718FP
UT WOS:000287106800035
ER
PT J
AU Hebert, KR
Ai, JH
Stafford, GR
Ho, KM
Wang, CZ
AF Hebert, K. R.
Ai, J. H.
Stafford, G. R.
Ho, K. M.
Wang, C. Z.
TI Vacancy defects in aluminum formed during aqueous dissolution
SO ELECTROCHIMICA ACTA
LA English
DT Article; Proceedings Paper
CT 8th International-Society-of-Electrochemistry Spring Meeting
CY MAY 02-05, 2010
CL Ohio State Univ, Columbus, OH
SP Int Soc Electrochem
HO Ohio State Univ
DE Hydrogen absorption; Aluminum; Corrosion; Vacancies; Stress measurement
ID WEBER THIN-FILMS; IN-SITU STRESS; ALKALINE-SOLUTIONS; (111)-TEXTURED AU;
HYDROGEN; CORROSION; EQUILIBRIUM; DIFFUSION; EVOLUTION; HYDRIDE
AB Aqueous dissolution of aluminum is accompanied by extensive absorption of hydrogen, along with formation of hydride and voids. We used in situ stress measurements to discriminate between absorption mechanisms leading to either interstitial or vacancy defects, and to relate defect formation to surface chemistry. Large tensile shifts of the stress-thickness product, approaching 35 N/m, were found during the initial exposure of Al thin films to aqueous NaOH solutions at pH 12-13. The time dependence of the stress-thickness product correlated with mass of metal dissolved, as determined with the quartz crystal microbalance. The observed relationship between stress and mass change was consistent with a significant fraction of dissolved Al atoms forming vacancies or vacancy-hydrogen defects. Electrochemical potential transients indicated that the onset of the tensile stress change corresponds to the presence of aluminum hydride at the metal surface. We propose mechanisms in which vacancy-hydrogen defects form either due to hydride, or because of the elevated hydrogen chemical potential at the Al surface. (C) 2010 Elsevier Ltd. All rights reserved.
C1 [Hebert, K. R.; Ai, J. H.] Iowa State Univ, Dept Chem & Biol Engn, Ames, IA 50011 USA.
[Stafford, G. R.] NIST, Mat Sci & Engn Lab, Gaithersburg, MD 20899 USA.
[Ho, K. M.; Wang, C. Z.] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA.
[Ho, K. M.; Wang, C. Z.] US DOE, Ames Lab, Ames, IA 50011 USA.
RP Hebert, KR (reprint author), Iowa State Univ, Dept Chem & Biol Engn, Ames, IA 50011 USA.
EM krhebert@iastate.edu
NR 33
TC 9
Z9 9
U1 1
U2 15
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0013-4686
J9 ELECTROCHIM ACTA
JI Electrochim. Acta
PD JAN 15
PY 2011
VL 56
IS 4
SI SI
BP 1806
EP 1809
DI 10.1016/j.electacta.2010.08.052
PG 4
WC Electrochemistry
SC Electrochemistry
GA 729LP
UT WOS:000287951600016
ER
PT J
AU Kaplan, DI
Roberts, KA
Schwehr, KA
Lilley, MS
Brinkmeyer, R
Denham, ME
Diprete, D
Li, HP
Powell, BA
Xu, C
Yeager, CM
Zhang, SJ
Santschi, PH
AF Kaplan, Daniel I.
Roberts, Kimberly A.
Schwehr, Kathy A.
Lilley, Michael S.
Brinkmeyer, Robin
Denham, Miles E.
Diprete, David
Li, Hsiu-Ping
Powell, Brian A.
Xu, Chen
Yeager, Chris M.
Zhang, Saijin
Santschi, Peter H.
TI Evaluation of a Radioiodine Plume Increasing in Concentration at the
Savannah River Site
SO ENVIRONMENTAL SCIENCE & TECHNOLOGY
LA English
DT Article
ID IODINE; SEDIMENTS; SORPTION; CHROMATOGRAPHY; IODATE; WATER; SOIL
AB Field and laboratory studies were carried out to understand the cause for steady increases in (129)I concentrations emanating from radiological basins located on the Savannah River Site, South Carolina. The basins were closed in 1988 by adding limestone and slag and then capping with a low permeability engineered cover. Groundwater (129)I concentrations in a well near the basins in 1993 were 200 pCi L(-1) and are presently between 400 and 1000 pCi L(-1). Iodine speciation in the plume contained wide ranges of iodide, iodate, and organo-iodine concentrations. First-order calculations based on a basin sediment desorption study indicate that the modest increase of 0.7 pH units detected in the study site groundwater over the last 17 years since closure of the basins may be sufficient to produce the observed increased groundwater (129)I concentrations near the basins. Groundwater monitoring of the plume at the basins has shown that the migration of many of the high risk radionuclides originally present at this complex site has been attenuated. However, (129)I continues to leave the source at a rate that may have been exacerbated by the initial remediation efforts. This study underscores the importance of identifying the appropriate in situ stabilization technologies for all source contaminants, especially if their geochemical behaviors differ.
C1 [Kaplan, Daniel I.; Roberts, Kimberly A.; Denham, Miles E.; Diprete, David; Yeager, Chris M.] Savannah River Natl Lab, Aiken, SC 29808 USA.
[Schwehr, Kathy A.; Brinkmeyer, Robin; Li, Hsiu-Ping; Xu, Chen; Zhang, Saijin; Santschi, Peter H.] Texas A&M Univ, Dept Marine Sci, Lab Environm & Oceanog Res, Galveston, TX 77551 USA.
[Lilley, Michael S.; Powell, Brian A.] Clemson Univ, Dept Environm Engn & Earth Sci, Anderson, SC 29625 USA.
RP Kaplan, DI (reprint author), Savannah River Natl Lab, Aiken, SC 29808 USA.
EM daniel.kaplan@srnl.doe.gov
RI Powell, Brian /C-7640-2011; Santschi, Peter/D-5712-2012; zhang,
saijin/A-4986-2013
OI Powell, Brian /0000-0003-0423-0180;
FU Climate and Environmental Sciences Division in the Office of Biological
and Environmental Research (BER), Office of Science, U.S. Department of
Energy [DE-FG02-08ER64567, DE-PS02-07ER07-18]; NSF [EAR 0538074]; Texas
Institute of Oceanography; U.S. Department of Energy [DE-AC09-96SR18500]
FX This work was, in part, supported by Subsurface Biogeochemistry Research
Program, (SBR), which is within the Climate and Environmental Sciences
Division in the Office of Biological and Environmental Research (BER),
Office of Science, U.S. Department of Energy, Grants DE-FG02-08ER64567
and DE-PS02-07ER07-18, the NSF (EAR 0538074), and in part by the Texas
Institute of Oceanography. Work was conducted at the Savannah River
National Laboratory under the U.S. Department of Energy Contract
DE-AC09-96SR18500.
NR 26
TC 34
Z9 34
U1 0
U2 28
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0013-936X
J9 ENVIRON SCI TECHNOL
JI Environ. Sci. Technol.
PD JAN 15
PY 2011
VL 45
IS 2
BP 489
EP 495
DI 10.1021/es103314n
PG 7
WC Engineering, Environmental; Environmental Sciences
SC Engineering; Environmental Sciences & Ecology
GA 704YB
UT WOS:000286090500025
PM 21138294
ER
PT J
AU Raddatz, AL
Johnson, TM
McLing, TL
AF Raddatz, Amanda L.
Johnson, Thomas M.
McLing, Travis L.
TI Cr Stable Isotopes in Snake River Plain Aquifer Groundwater: Evidence
for Natural Reduction of Dissolved Cr(VI)
SO ENVIRONMENTAL SCIENCE & TECHNOLOGY
LA English
DT Article
ID CHROMIUM ISOTOPES; CHROMATE REDUCTION; FRACTIONATION
AB At Idaho National Laboratory, Cr(VI) concentrations in a groundwater plume once exceeded regulatory limits in some monitoring wells but have generally decreased over time. This study used Cr stable isotope measurements to determine if part of this decrease resulted from removal of Cr(VI) via reduction to insoluble Cr(III). Although waters in the study area contain dissolved oxygen, the basalt host rock contains abundant Fe(II) and may contain reducing microenvironments or aerobic microbes that reduce Cr(VI). In some contaminated locations,(53)Cr/(52)Cr ratios are close to that of the contaminant source, indicating a lack of Cr(VI) reduction. In other locations, ratios are elevated. Part of this shift may be caused by mixing with natural background Cr(VI), which is present at low concentrations but in some locations has elevated (53)Cr/(52)Cr. Some contaminated wells have (53)Cr/(52)Cr ratios greater than the maximum attainable by mixing between the inferred contaminant and the range of natural background observed in several uncontaminated wells, suggesting that Cr(VI) reduction has occurred. Definitive proof of reduction would require additional evidence. Depth profiles of (53)Cr/(52)Cr suggest that reduction occurs immediately below the water table, where basalts are likely least weathered and most reactive, and is weak or nonexistent at greater depth.
C1 [Raddatz, Amanda L.; Johnson, Thomas M.] Univ Illinois, Dept Geol, Urbana, IL 61801 USA.
[McLing, Travis L.] Idaho Natl Lab, Idaho Falls, ID 83415 USA.
RP Johnson, TM (reprint author), Univ Illinois, Dept Geol, 208 Nat Hist Bldg,1301 W Green St, Urbana, IL 61801 USA.
EM tmjohnsn@illinois.edu
RI Johnson, Thomas/A-2740-2008
OI Johnson, Thomas/0000-0003-1620-1408
FU U.S. Department of Energy [DE-FG02-07ER64405]; National Science
Foundation [EAR 0732481]
FX This material is based upon work supported by the U.S. Department of
Energy under Grant No. DE-FG02-07ER64405 and the National Science
Foundation under Grant No. EAR 0732481. Suggestions from three anonymous
reviewers improved the quality of this paper.
NR 32
TC 19
Z9 20
U1 1
U2 42
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0013-936X
J9 ENVIRON SCI TECHNOL
JI Environ. Sci. Technol.
PD JAN 15
PY 2011
VL 45
IS 2
BP 502
EP 507
DI 10.1021/es102000z
PG 6
WC Engineering, Environmental; Environmental Sciences
SC Engineering; Environmental Sciences & Ecology
GA 704YB
UT WOS:000286090500027
PM 21121656
ER
PT J
AU Fletcher, KE
Costanza, J
Cruz-Garcia, C
Ramaswamy, NS
Pennell, KD
Loffler, FE
AF Fletcher, Kelly E.
Costanza, Jed
Cruz-Garcia, Claribel
Ramaswamy, Nivedhya S.
Pennell, Kurt D.
Loeffler, Frank E.
TI Effects of Elevated Temperature on Dehalococcoides Dechlorination
Performance and DNA and RNA Biomarker Abundance
SO ENVIRONMENTAL SCIENCE & TECHNOLOGY
LA English
DT Article
ID REDUCTIVE DEHALOGENASE GENES; ANAEROBIC ENRICHMENT CULTURE;
VINYL-CHLORIDE REDUCTASE; TCE-CONTAMINATED AQUIFER; REAL-TIME PCR; SP
STRAIN; DEHALOBACTER-RESTRICTUS; GEOBACTER-LOVLEYI; THERMAL-TREATMENT;
SP-NOV
AB Coupling thermal treatment with microbial reductive dechlorination is a promising remedy for tetrachloroethene (PCE) and trichloroethene (ICE) contaminated source zones. Laboratory experiments evaluated Dehalococcoides (Dhc) dechlorination performance, viability, and biomarker gene (DNA) and transcript (mRNA) abundances during exposure to elevated temperatures. The PCE-dechlorinating consortia BDI and OW produced ethene when incubated at temperatures of 30 degrees C, but vinyl chloride (VC) accumulated when cultures were incubated at 35 or 40 degrees C. Cultures incubated at 40 degrees C for less than 49 days resumed VC dechlorination following cooling; however, incubation at 45 degrees C resulted in complete loss of dechlorination activity. Dhc 16S rRNA, bvcA, and vcrA gene abundances in cultures showing complete dechlorination to ethene at 30 degrees C exceeded those measured in cultures incubated at higher temperatures, consistent with observed dechlorination activities. Conversely, biomarker gene transcript abundances per cell in cultures incubated at 35 and 40 degrees C were generally at least one order-of-magnitude greater than those measured in ethene-producing cultures incubated at 30 degrees C. Even in cultures accumulating VC, transcription of the vcrA gene, which is implicated in VC-to-ethene dechlorination, was up-regulated. Temperature stress caused the up-regulation of Dhc reductive dehalogenase gene expression indicating that Dhc gene expression measurements should be interpreted cautiously as Dhc biomarker gene transcript abundances may not correlate with dechlorination activity.
C1 [Loeffler, Frank E.] Univ Tennessee, Dept Microbiol, Knoxville, TN 37996 USA.
[Fletcher, Kelly E.; Costanza, Jed; Cruz-Garcia, Claribel; Ramaswamy, Nivedhya S.; Loeffler, Frank E.] Georgia Inst Technol, Sch Civil & Environm Engn, Atlanta, GA 30332 USA.
[Fletcher, Kelly E.; Costanza, Jed; Cruz-Garcia, Claribel; Ramaswamy, Nivedhya S.; Loeffler, Frank E.] Georgia Inst Technol, Sch Biol, Atlanta, GA 30332 USA.
[Pennell, Kurt D.] Tufts Univ, Dept Civil & Environm Engn, Medford, MA 02155 USA.
[Loeffler, Frank E.] Univ Tennessee, Dept Civil & Environm Engn, Knoxville, TN 37996 USA.
[Loeffler, Frank E.] Oak Ridge Natl Lab, Biosci Div, Oak Ridge, TN 37831 USA.
RP Loffler, FE (reprint author), Univ Tennessee, Dept Microbiol, M409 Walters Life Sci, Knoxville, TN 37996 USA.
EM frank.loeffler@utk.edu
RI Pennell, Kurt/F-6862-2010; Loeffler, Frank/M-8216-2013
OI Pennell, Kurt/0000-0002-5788-6397;
FU Strategic Environmental Research and Development Program (SERDP)
[W912HQ-05-C-008, ER-1419, W912HQ-07-C-0036, ER-1586]; NSF IGERT; NSF
FX We thank Benjamin K. Amos for helpful discussions. Support for this
research was provided by the Strategic Environmental Research and
Development Program (SERDP) under contracts W912HQ-05-C-008 (Project
ER-1419) and W912HQ-07-C-0036 (project ER-1586). K.E.F. acknowledges
support through NSF IGERT and NSF graduate research fellowships.
NR 50
TC 11
Z9 11
U1 2
U2 17
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0013-936X
J9 ENVIRON SCI TECHNOL
JI Environ. Sci. Technol.
PD JAN 15
PY 2011
VL 45
IS 2
BP 712
EP 718
DI 10.1021/es1023477
PG 7
WC Engineering, Environmental; Environmental Sciences
SC Engineering; Environmental Sciences & Ecology
GA 704YB
UT WOS:000286090500058
PM 21126083
ER
PT J
AU Qin, L
Nittler, LR
Alexander, CMO
Wang, J
Stadermann, FJ
Carlson, RW
AF Qin, L.
Nittler, L. R.
Alexander, C. M. O'D.
Wang, J.
Stadermann, F. J.
Carlson, R. W.
TI Extreme Cr-54-rich nano-oxides in the CI chondrite Orgueil - Implication
for a late supernova injection into the solar system
SO GEOCHIMICA ET COSMOCHIMICA ACTA
LA English
DT Article
ID RED GIANT STARS; CHROMIUM ISOTOPIC ANOMALIES; NEARBY PROTOPLANETARY
DISKS; SHORT-LIVED RADIOISOTOPES; STABLE OXYGEN ISOTOPES; CARBONACEOUS
CHONDRITES; SILICATE GRAINS; MN-53-CR-53 SYSTEMATICS; PLANETESIMAL
FORMATION; INTERPLANETARY DUST
AB Systematic variations in Cr-54/Cr-52 ratios between meteorite classes (Trinquier et al., 2007; Qin et al., 2010a) point to large scale spatial and/or temporal isotopic heterogeneity in the solar protoplanetary disk. Two explanations for these variations have been proposed, with important implications for the formation of the Solar System: heterogeneous seeding of the disk with dust from a supernova, or energetic-particle irradiation of dust in the disk. The key to differentiating between them is identification of the carrier(s) of the Cr-54 anomalies. Here we report the results of our recent NanoSIMS imaging search for the Cr-54-rich carrier in the acid-resistant residue of the CI chondrite Orgueil. A total of 10 regions with extreme Cr-54-excesses (delta Cr-54 values up to 1500 parts per thousand) were found. Comparison between SEM, Auger and NanoSIMS analyses showed that these Cr-54-rich regions are associated with one or more sub-micron (typically less than 200 nm) Cr oxide grains, most likely spinels. Because the size of the NanoSIMS primary O- ion beam is larger than the typical grain size on the sample mount, the measured anomalies are lower limits, and we estimate that the actual Cr-54 enrichments in three grains are at least 11 times Solar and in one of these may be as high as 50 times Solar. Such compositions strongly favor a Type II supernova origin. The variability in bulk Cr-54/Cr-52 between meteorite classes argues for a heterogeneous distribution of the Cr-54 carrier in the solar protoplanetary disk following a late supernova injection event. Such a scenario is also supported by the O-isotopic distribution and variable abundances in different planetary materials of other presolar oxide and silicate grains from supernovae. (C) 2010 Elsevier Ltd. All rights reserved.
C1 [Qin, L.; Nittler, L. R.; Alexander, C. M. O'D.; Wang, J.; Carlson, R. W.] Carnegie Inst Washington, Dept Terr Magnetism, Washington, DC 20015 USA.
[Stadermann, F. J.] Washington Univ, Space Sci Lab, St Louis, MO 63130 USA.
[Stadermann, F. J.] Washington Univ, Dept Phys, St Louis, MO 63130 USA.
RP Qin, L (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Ctr Isotope Geochem, 1 Cyclotron RD,MS 70A4418, Berkeley, CA 94720 USA.
EM lqin@lbl.gov
RI Alexander, Conel/N-7533-2013; Wang, Jianhua/D-6500-2011
OI Alexander, Conel/0000-0002-8558-1427; Wang, Jianhua/0000-0002-7671-2413
FU Carnegie Institution of Washington; NASA [NNX08AH65G, NNX07AJ71G]
FX We thank Nicholas Moskovitz for discussions, M.-C. Liu for help with the
instruments, and Stan Woosley and Alex Heger for providing supernova
yields in digital form. Comments from Jamie Gilmour, Alex Shukolyukov
and an anonymous reviewer are greatly appreciated. Qin acknowledges
support in the form of a postdoctoral fellowship from Carnegie
Institution of Washington. This work was supported by NASA
Cosmochemistry Grants NNX08AH65G and NNX07AJ71G.
NR 80
TC 52
Z9 55
U1 3
U2 23
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0016-7037
J9 GEOCHIM COSMOCHIM AC
JI Geochim. Cosmochim. Acta
PD JAN 15
PY 2011
VL 75
IS 2
BP 629
EP 644
DI 10.1016/j.gca.2010.10.017
PG 16
WC Geochemistry & Geophysics
SC Geochemistry & Geophysics
GA 708GF
UT WOS:000286349600020
ER
PT J
AU Evans, RD
Shiller, PJ
Howe, JY
AF Evans, R. D.
Shiller, P. J.
Howe, J. Y.
TI Adhesion of tungsten carbide reinforced amorphous hydrocarbon thin films
(WC/a-C:H) to steel substrates for tribological applications
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
ID DIAMOND-LIKE CARBON; C-H; COATINGS; MICROSTRUCTURE
AB We have explored the adhesive interlayer structure for a tungsten carbide reinforced amorphous hydrocarbon thin film coating (WC/a-C:H) that demonstrated excellent coating adhesion under highly stressed tribological contact. Transmission electron microscopy (TEM) analysis including cross-sectional imaging, electron diffraction, and energy dispersive spectroscopy was performed on abrupt and gradient interfaces within the multilayer film architecture. Interpretation of these results is aided by quantum mechanical calculations that were performed to investigate bonding interactions of the Cr adhesive interlayer to the Fe substrate surface within a similar to 3 nm thick interfacial region. Low levels of oxygen present in the coating deposition chamber during deposition were found at the Fe-Cr interface using high-resolution TEM. Molecular orbital calculations for a linear three-atom molecular model Fe-O-Cr demonstrate the role of O in strengthening Fe to Cr bonding within that interfacial region. (C) 2011 American Institute of Physics. [doi:10.1063/1.3544045]
C1 [Evans, R. D.; Shiller, P. J.] Timken Co, Timken Technol Ctr, Canton, OH 44706 USA.
[Howe, J. Y.] Oak Ridge Natl Lab, High Temp Mat Lab, Oak Ridge, TN 37831 USA.
RP Evans, RD (reprint author), Timken Co, Timken Technol Ctr, 1835 Dueber Ave SW, Canton, OH 44706 USA.
EM ryan.evans@timken.com
RI Shiller, Paul/A-8492-2010;
OI Shiller, Paul/0000-0001-9714-8527; Evans, Ryan/0000-0003-4549-8247
FU Timken Co.; Office of Basic Energy Sciences, U.S. Department of Energy
FX The Timken Co. is acknowledged for support of this project and
permission to publish. D. W. Coffey from ORNL is acknowledged for FIB
TEM sample preparation. J. R. Gnagy from Timken is acknowledged for
bearing testing. G. L. Doll from Timken is acknowledged for helpful
discussions and support of this effort. Research supported by Oak Ridge
National Laboratory's Shared Research Equipment (SHaRE) User Facility,
which is sponsored by the Office of Basic Energy Sciences, U.S.
Department of Energy.
NR 17
TC 5
Z9 5
U1 0
U2 7
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0021-8979
J9 J APPL PHYS
JI J. Appl. Phys.
PD JAN 15
PY 2011
VL 109
IS 2
AR 023518
DI 10.1063/1.3544045
PG 6
WC Physics, Applied
SC Physics
GA 715PM
UT WOS:000286896400037
ER
PT J
AU Tuttle, BR
Dhar, S
Ryu, SH
Zhu, X
Williams, JR
Feldman, LC
Pantelides, ST
AF Tuttle, B. R.
Dhar, S.
Ryu, S. -H.
Zhu, X.
Williams, J. R.
Feldman, L. C.
Pantelides, S. T.
TI High electron mobility due to sodium ions in the gate oxide of
SiC-metal-oxide-semiconductor field-effect transistors
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
ID INVERSION LAYER MOBILITY; HIGH CHANNEL MOBILITY; SILICON-CARBIDE; 4H-SIC
MOSFETS; INTERFACE; STATES; TRAP; ENERGY
AB Oxidation of SiC with the incorporation of Na in the gate oxide was recently found to lead to significantly enhanced electron mobilities in the SiC inversion layer but the underlying mechanism has remained elusive. Here, we report a combination of density functional first-principles calculations and experiments. The new findings demonstrate that neutral Na is essentially a spectator impurity that occupies near interfacial interstitial sites and does not interact with the interface or with interfacial defects. Na ions, however, introduce an effective mass hydrogenic impurity band at the edge of the SiC conduction band that can account for the observed effects. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3533767]
C1 [Tuttle, B. R.; Feldman, L. C.; Pantelides, S. T.] Vanderbilt Univ, Dept Phys & Astron, Nashville, TN 37235 USA.
[Tuttle, B. R.] Penn State Behrend, Dept Phys, Erie, PA 16563 USA.
[Dhar, S.; Ryu, S. -H.] Cree Inc, R&D Div, Durham, NC 27709 USA.
[Zhu, X.; Williams, J. R.] Auburn Univ, Dept Phys, Auburn, AL 36849 USA.
[Zhu, X.; Feldman, L. C.] Rutgers State Univ, Inst Adv Mat Devices & Nanotechnol, Piscataway, NJ 08854 USA.
[Pantelides, S. T.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
RP Tuttle, BR (reprint author), Vanderbilt Univ, Dept Phys & Astron, Nashville, TN 37235 USA.
EM brt10@psu.edu
FU NSF [DMR-0907385]; ARL [W911NF-07-2-0046]; McMinn Endowment at
Vanderbilt University
FX We are pleased to acknowledge Dr. Anant Agarwal (Cree) and Professor J.
Copper for useful discussions. Cree would like to thank C. Scozzie, B.
Geil, and A. Lelis at U.S. Army Research Laboratory for supporting this
work. The work was supported by the NSF (Grant No. DMR-0907385).
Additional support came from ARL (Grant No. W911NF-07-2-0046) and the
McMinn Endowment at Vanderbilt University.
NR 27
TC 15
Z9 15
U1 0
U2 14
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0021-8979
J9 J APPL PHYS
JI J. Appl. Phys.
PD JAN 15
PY 2011
VL 109
IS 2
AR 023702
DI 10.1063/1.3533767
PG 6
WC Physics, Applied
SC Physics
GA 715PM
UT WOS:000286896400040
ER
PT J
AU Bylaska, EJ
Tsemekhman, K
Baden, SB
Weare, JH
Jonsson, H
AF Bylaska, Eric J.
Tsemekhman, Kiril
Baden, Scott B.
Weare, John H.
Jonsson, Hannes
TI Parallel Implementation of Gamma-Point Pseudopotential Plane-Wave DFT
with Exact Exchange
SO JOURNAL OF COMPUTATIONAL CHEMISTRY
LA English
DT Article
DE hybrid DFT; parallel algorithms; exact exchange; pseudopotential
plane-wave DFT
ID DENSITY-FUNCTIONAL METHODS; INITIO MOLECULAR-DYNAMICS; CONSISTENT
HARTREE-FOCK; CAR-PARRINELLO METHOD; WANNIER FUNCTIONS; SEMICONDUCTORS;
SIMULATIONS; ENERGIES; ELECTRON; APPROXIMATION
AB Semi-local functionals commonly used in density functional theory (DFT) studies of solids usually fail to reproduce localized states such as trapped holes, polarons, excitons, and solitons. This failure is ascribed to self-interaction which creates a Coulomb barrier to localization. Pragmatic approaches in which the exchange correlation functionals are augmented with small amount of exact exchange (hybrid-DFT, e. g., B3LYP and PBE0) have shown to promise in rectifying this type of failure, as well as producing more accurate band gaps and reaction barriers. The evaluation of exact exchange is challenging for large, solid state systems with periodic boundary conditions, especially when plane-wave basis sets are used. We have developed parallel algorithms for implementing exact exchange into pseudopotential plane-wave DFT program and we have implemented them in the NWChem program package. The technique developed can readily be employed in Gamma-point plane-wave DFT programs. Furthermore, atomic forces and stresses are straightforward to implement, making it applicable to both confined and extended systems, as well as to Car-Parrinello ab initio molecular dynamic simulations. This method has been applied to several systems for which conventional DFT methods do not work well, including calculations for band gaps in oxides and the electronic structure of a charge trapped state in the Fe(II) containing mica, annite. (C) 2010 Wiley Periodicals, Inc. J Comput Chem 32: 54-69, 2011
C1 [Bylaska, Eric J.] Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA.
[Tsemekhman, Kiril] Univ Washington, Dept Chem, Seattle, WA 98195 USA.
[Baden, Scott B.] Univ Calif San Diego, Dept Comp Sci & Engn, La Jolla, CA 92093 USA.
[Weare, John H.] Univ Calif San Diego, Dept Chem & Biochem, La Jolla, CA 92093 USA.
[Jonsson, Hannes] Univ Iceland, Fac Sci, VR 2, IS-107 Reykjavik, Iceland.
RP Bylaska, EJ (reprint author), Pacific NW Natl Lab, Environm Mol Sci Lab, POB 999, Richland, WA 99352 USA.
EM eric.bylaska@pnl.gov
RI Jonsson, Hannes/G-2267-2013
OI Jonsson, Hannes/0000-0001-8285-5421
FU U.S. Department of Energy; Office of Science [DE AC05 76RL01830]; DOE's
Office of Biological and Environmental Research; ASCR; U.S. Department
of Energy, Office of Science [DE-AC05-76RL01830, DE-FG02-05ER25707]; LSI
Inc. through the Semiconductor Research Corporation
FX Contract/grant sponsors: ASCR Multiscale Mathematics program, ASCR
Petascale Tools Program, and BES Geosciences program (U.S. Department of
Energy); Contract/grant sponsor: Office of Science; contract/grant
number: DE AC05 76RL01830; We wish to thank the Scientific Computing
Staff, Office of Energy Research, and the U.S. Department of Energy for
a grant of computer time at the National Energy Research Scientific
Computing Center (Berkeley, CA). Some of the calculations were performed
on the Chinook and Spokane computing systems at the Molecular Science
Computing Facility in the William R. Wiley Environmental Molecular
Sciences Laboratory (EMSL) at PNNL. The Pacific Northwest National
Laboratory is operated by Battelle Memorial Institute. EMSL operations
are supported by the DOE's Office of Biological and Environmental
Research. EJB, SBB, and JHW would like to acknowledge support by ASCR
Multiscale Mathematics program, ASCR Petascale tools program, and the
BES Geosciences program of the U.S. Department of Energy, Office of
Science ~DE-AC05-76RL01830 (PNNL) and ~DE-FG02-05ER25707 (UCSD). KT
acknowledges support by the Nanoscale Science, Engineering, and
Technology program and the Environmental Management Sciences program of
the U.S. Department of Energy, Office of Science ~DE-AC05-76RL01830, and
from LSI Inc. through the Semiconductor Research Corporation.
NR 52
TC 21
Z9 21
U1 0
U2 20
PU JOHN WILEY & SONS INC
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN, NJ 07030 USA
SN 0192-8651
J9 J COMPUT CHEM
JI J. Comput. Chem.
PD JAN 15
PY 2011
VL 32
IS 1
BP 54
EP 69
DI 10.1002/jcc.21598
PG 16
WC Chemistry, Multidisciplinary
SC Chemistry
GA 694PX
UT WOS:000285311200006
PM 20607748
ER
PT J
AU Goh, WH
Patriarche, G
Bonanno, PL
Gautier, S
Moudakir, T
Abid, M
Orsal, G
Sirenko, AA
Cai, ZH
Martinez, A
Ramdane, A
Le Gratiet, L
Troadec, D
Soltani, A
Ougazzaden, A
AF Goh, W. H.
Patriarche, G.
Bonanno, P. L.
Gautier, S.
Moudakir, T.
Abid, M.
Orsal, G.
Sirenko, A. A.
Cai, Z. -H.
Martinez, A.
Ramdane, A.
Le Gratiet, L.
Troadec, D.
Soltani, A.
Ougazzaden, A.
TI Structural and optical properties of nanodots, nanowires, and
multi-quantum wells of III-nitride grown by MOVPE nano-selective area
growth
SO JOURNAL OF CRYSTAL GROWTH
LA English
DT Article; Proceedings Paper
CT 15th International Conference on Metalorganic Vapor Phase Epitaxy
(ICMOVPE-XV)
CY MAY 23-28, 2010
CL Incline Village, NV
DE Nanostructures; Metalorganic vapor phase epitaxy; Selective area growth;
Nitrides; Semiconducting III-V materials
ID VAPOR-PHASE EPITAXY; QUANTUM DOTS; GAN; EMISSION
AB Nanodots, nanowires, and semi-polar quantum well structures of GaN-based material have been grown by nano-selective area growth (NSAG). The growth evolution of the nanostructure has been studied. Cross-sectional transmission electron microscopy (TEM) shows that the nanostructures are free of threading dislocations. The growth of AlGaN/GaN layers is uniform and shows sharp interfaces between the AlGaN and GaN epilayers. AlGaN nanodots/nanowires, which are formed at the apexes of the nano-pyramids/nano-ridges, are found to be homogeneous in size and to have a higher aluminum mole fraction than the surrounding material. In contrast, the InGaN/GaN growth shows no quantum dots at the apexes of the nanostructures. We found that the growth facets of different Miller's indices are formed on the InGaN/GaN nano-ridges. Energy dispersive X-ray spectroscopy (EDX) shows higher indium incorporation at the intersection of the growth facets. Cathodoluminescence measurements show enhanced luminescence intensity from InGaN multi-quantum wells (MQWs) grown on the nanostructure compared to that from InGaN MQWs grown on an unpatterned area. (C) 2010 Elsevier B.V. All rights reserved.
C1 [Goh, W. H.; Bonanno, P. L.; Abid, M.; Ougazzaden, A.] Georgia Tech CNRS, Georgia Inst Technol GT Lorraine UMI 2958, F-57070 Metz, France.
[Patriarche, G.; Martinez, A.; Ramdane, A.; Le Gratiet, L.] CNRS, Lab Photon & Nanostruct, F-91460 Marcoussis, France.
[Gautier, S.; Moudakir, T.; Orsal, G.] Univ Metz & Supelec, CNRS, UMR 7132, Lab Mat Opt Photon & Micronano Syst, F-57070 Metz, France.
[Sirenko, A. A.] New Jersey Inst Technol, Dept Phys, Newark, NJ 07102 USA.
[Cai, Z. -H.] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA.
[Troadec, D.; Soltani, A.] Inst Elect Microelect & Nanotechnol, F-59652 Villeneuve Dascq, France.
RP Goh, WH (reprint author), Georgia Tech CNRS, Georgia Inst Technol GT Lorraine UMI 2958, F-57070 Metz, France.
EM wgoh@georgiatech-metz.fr
RI Patriarche, Gilles/J-3934-2015;
OI Patriarche, Gilles/0000-0002-3917-2470
NR 13
TC 17
Z9 17
U1 2
U2 37
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0022-0248
J9 J CRYST GROWTH
JI J. Cryst. Growth
PD JAN 15
PY 2011
VL 315
IS 1
SI SI
BP 160
EP 163
DI 10.1016/j.jcrysgro.2010.08.053
PG 4
WC Crystallography; Materials Science, Multidisciplinary; Physics, Applied
SC Crystallography; Materials Science; Physics
GA 724EH
UT WOS:000287558400036
ER
PT J
AU Hong, L
Novikov, VN
Sokolov, AP
AF Hong, L.
Novikov, V. N.
Sokolov, A. P.
TI Is there a connection between fragility of glass forming systems and
dynamic heterogeneity/cooperativity?
SO JOURNAL OF NON-CRYSTALLINE SOLIDS
LA English
DT Article
DE Glass transition; Fragility; Cooperativity
ID COMPLEX DIELECTRIC CONSTANT; LENGTH SCALE; TEMPERATURE-DEPENDENCE;
SUPERCOOLED LIQUIDS; STRUCTURAL GLASSES; DIPOLAR COMPOUNDS;
PROPYLENE-GLYCOL; ALPHA-RELAXATION; TRANSITION; PRESSURE
AB Although fragility of glass forming liquids is traditionally related to cooperativity ill molecular motion, the connection between those parameters remains unclear. In this paper we present the estimates of cooperativity (heterogeneity) length scale xi, obtained from the boson peak spectra. We demonstrate that xi agrees well with the dynamic heterogeneity length scale for the structural relaxation estimated by 4-dimensional NMR, justifying the use of xi. Presented analysis of large number of materials reveals no clear correlation between xi and fragility. However, there is a strong correlation between the cooperativity volume xi(3) and the activation volume measured at T(g). This observation suggests that only the volume (pressure) dependence of structural relaxation time correlates directly with the cooperativity size. However, the pure thermal (energetic) contribution to the structural relaxation, the so-called isochoric fragility, exhibits no correlation to the heterogeneity length scale xi, or the amount of structural units in xi(3). The presented results call for a revision of traditional view on the role of cooperativity/heterogeneity in structural relaxation of glass forming systems. (C) 2010 Elsevier B.V. All rights reserved.
C1 [Novikov, V. N.; Sokolov, A. P.] Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA.
[Hong, L.] Univ Akron, Dept Polymer Sci, Akron, OH 44325 USA.
[Novikov, V. N.; Sokolov, A. P.] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA.
[Novikov, V. N.] Russian Acad Sci, IA&E, Novosibirsk 630090, Russia.
RP Sokolov, AP (reprint author), Univ Tennessee, Dept Chem, 1420 Circle Dr, Knoxville, TN 37996 USA.
EM sokolov@utk.edu
RI hong, liang/D-5647-2012
FU NSF [DMR-0804571]; Division of Materials Sciences and Engineering, DOE
Office of Basic Energy Sciences; ORNL; RFBR [09-02-01297a]
FX We thank Puru Gujrati and Ken Schweizer for many helpful discussions.
Akron team acknowledges funding from the NSF, Polymer program
(DMR-0804571), APS acknowledges the support from the Division of
Materials Sciences and Engineering, DOE Office of Basic Energy Sciences,
and VNN acknowledges the financial support from the LORD Program of
ORNL, managed by UT-Battelle. LLC, for DOE, and from the RFBR (grant no.
09-02-01297a).
NR 38
TC 27
Z9 27
U1 2
U2 40
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0022-3093
J9 J NON-CRYST SOLIDS
JI J. Non-Cryst. Solids
PD JAN 15
PY 2011
VL 357
IS 2
SI SI
BP 351
EP 356
DI 10.1016/j.jnoncrysol.2010.06.071
PG 6
WC Materials Science, Ceramics; Materials Science, Multidisciplinary
SC Materials Science
GA 725JK
UT WOS:000287640800020
ER
PT J
AU He, LH
Hinestrosa, JP
Pickel, JM
Zhang, SJ
Bucknall, DG
Kilbey, SM
Mays, JW
Hong, KL
AF He, Lihong
Hinestrosa, Juan Pablo
Pickel, Joseph M.
Zhang, Shanju
Bucknall, David G.
Kilbey, S. Michael, II
Mays, Jimmy W.
Hong, Kunlun
TI Fluorine-Containing Linear Block Terpolymers: Synthesis and
Self-Assembly in Solution
SO JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
LA English
DT Article
DE micelles; poly(2-fluoroethyl methacrylate); PnBMA-PMMA-P2FEMA;
synthesis; triblock terpolymer
ID TRANSFER RADICAL POLYMERIZATION; ABC TRIBLOCK COPOLYMERS; CROSS-LINKED
MICELLES; MULTICOMPARTMENT MICELLES; RAFT POLYMERIZATION; AQUEOUS-MEDIA;
BUILDING-BLOCKS; METHACRYLATE); POLYMERS; DESIGN
AB Linear triblock terpolymers of poly(n-butyl methacrylate)-b-poly(methyl methacrylate)-b-poly(2-fluoroethyl methacrylate) (PnBMA-PMMA-P2FEMA) were synthesized by sequential reversible addition fragmentation chain transfer (RAFT) polymerization. Kinetic studies of the homopolymerization of 2FEMA by RAFT polymerization demonstrated controllable characteristics with fairly narrow polydispersities (similar to 1.30). The resultant PnBMA-PMMA-P2FEMA triblock terpolymers were characterized via (1)H NMR, (19)F NMR, and gel permeation chromatography. These polymers formed micellar aggregates in a selective solvent mixture. The as-formed micelles were analyzed using scanning electron microscopy and dynamic light scattering. It was found that these terpolymers could directly self-organize into complex micelles in a tetrahydrofuran/methanol mixture with diameters that depended on polymer composition. (C) 2010 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 49: 414-422, 2011
C1 [He, Lihong; Hinestrosa, Juan Pablo; Pickel, Joseph M.; Kilbey, S. Michael, II; Mays, Jimmy W.; Hong, Kunlun] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA.
[Zhang, Shanju; Bucknall, David G.] Georgia Inst Technol, Sch Mat Sci & Engn, Atlanta, GA 30332 USA.
[Kilbey, S. Michael, II; Mays, Jimmy W.] Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA.
RP Hong, KL (reprint author), Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA.
EM hongkq@ornl.gov
RI Zhang, Shanju/E-5119-2011; Bucknall, David/F-7568-2016; Hong,
Kunlun/E-9787-2015;
OI Bucknall, David/0000-0003-4558-6933; Hong, Kunlun/0000-0002-2852-5111;
Pickel, Joseph/0000-0001-9828-1565
FU Office of Basic Energy Sciences Scientific User Facilities; LDRD
[L05373]
FX This research was conducted at Oak Ridge National Laboratory's Center
for Nanophase Materials Sciences, which is sponsored by the Office of
Basic Energy Sciences Scientific User Facilities, for the US Department
of Energy. S. M. Kilbey acknowledges support through LDRD Project
L05373.
NR 50
TC 6
Z9 6
U1 2
U2 30
PU JOHN WILEY & SONS INC
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN, NJ 07030 USA
SN 0887-624X
J9 J POLYM SCI POL CHEM
JI J. Polym. Sci. Pol. Chem.
PD JAN 15
PY 2011
VL 49
IS 2
BP 414
EP 422
DI 10.1002/pola.24453
PG 9
WC Polymer Science
SC Polymer Science
GA 708ZN
UT WOS:000286403100011
ER
PT J
AU Marina, OA
Pederson, LR
Coyle, CA
Edwards, DJ
Chou, YS
Cramer, CN
AF Marina, Olga A.
Pederson, Larry R.
Coyle, Christopher A.
Edwards, Danny J.
Chou, Yeong-Shyung
Cramer, Carolyn N.
TI Interaction of coal-derived synthesis gas impurities with solid oxide
fuel cell metallic components
SO JOURNAL OF POWER SOURCES
LA English
DT Article
DE SOFC; Metallic interconnect; Chromia-forming alloys; Passivation layer;
Coal and biomass; Impurities
ID OXIDATION BEHAVIOR; CR ALLOYS; INTERCONNECTS
AB Oxidation-resistant alloys find use as interconnect materials, heat exchangers, and gas supply tubing in solid oxide fuel cell (SOFC) systems, especially when operated at temperatures below similar to 800 degrees C. If fueled with synthesis gas derived from coal or biomass, such metallic components could be exposed to impurities contained in those fuel sources. In this study, coupons of ferritic stainless steels Crofer 22 APU and SS 441, austenitic nickel-chromium superalloy Inconel 600, and an alumina-forming high nickel alloy alumel were exposed to synthesis gas containing <= 2 ppm phosphorus, arsenic and antimony, and reaction products were tested. Crofer 22 APU coupons coated with a (Mn,Co)(3)O(4) protective layer were also evaluated. Phosphorus was found to be the most reactive. On Crofer 22 APU, the (Mn,Cr)(3)O(4) passivation layer reacted to form an Mn-P-O product, predicted to be manganese phosphate from thermochemical calculations, and Cr(2)O(3). On SS 441, reaction of phosphorus with (Mn,Cr)(3)O(4) led to the formation of manganese phosphate as well as an Fe-P product, predicted from thermochemical calculations to be Fe(3)P. Minimal interactions with antimony or arsenic in synthesis gas were limited to Fe-Sb and Fe-As solid solution formation. Though not intended for use on the anode side, a (Mn,Co)(3)O(4) spinel coating on Crofer 22 APU reacted with phosphorus in synthesis gas to produce products consistent with Mn(3)(PO(4))(2) and Co(2)P. A thin Cr(2)O(3) passivation layer on Inconel 600 did not prevent the formation of nickel phosphides and arsenides and of iron phosphides and arsenides, though no reaction with Cr(2)O(3) was apparent. On alumel, an Al(2)O(3) passivation layer rich in Ni did not prevent the formation of nickel phosphides, arsenides, and antimonides, though no reaction with Al(2)O(3) occurred. This work shows that unprotected metallic components of an SOFC stack and system can provide a sink for P. As and Sb impurities that may be present in fuel gases, and thus complicate experimental studies of impurity interactions with the anode. (C) 2010 Elsevier B.V. All rights reserved.
C1 [Marina, Olga A.; Coyle, Christopher A.; Edwards, Danny J.; Chou, Yeong-Shyung; Cramer, Carolyn N.] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Pederson, Larry R.] N Dakota State Univ, Fargo, ND 58102 USA.
RP Marina, OA (reprint author), Pacific NW Natl Lab, Richland, WA 99352 USA.
EM olga.marina@pnl.gov
FU US Department of Energy, Office of Fossil Energy NETL through the SECA
Coal-Based Systems [AC06-76RLO 1830]
FX The authors would like to acknowledge G.G. Xia for providing alloy
coupons, A. Schemer-Kohrn and B.P. McCarthy for performing SEM/EDS
analyses, G.W. Coffey for technical assistance, and J.W. Stevenson for
helpful discussions. Support for this work was provided by the US
Department of Energy, Office of Fossil Energy, NETL through the SECA
Coal-Based Systems Core Research Program. Pacific Northwest National
Laboratory is operated for the U.S. Department of Energy by Battelle
Memorial Institute under Contract AC06-76RLO 1830.
NR 15
TC 6
Z9 6
U1 0
U2 19
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0378-7753
J9 J POWER SOURCES
JI J. Power Sources
PD JAN 15
PY 2011
VL 196
IS 2
SI SI
BP 636
EP 643
DI 10.1016/j.jpowsour.2010.07.081
PG 8
WC Chemistry, Physical; Electrochemistry; Energy & Fuels; Materials
Science, Multidisciplinary
SC Chemistry; Electrochemistry; Energy & Fuels; Materials Science
GA 663ZU
UT WOS:000282929500005
ER
PT J
AU Prasad, SV
Renk, TJ
Kotula, PG
DebRoy, T
AF Prasad, S. V.
Renk, T. J.
Kotula, P. G.
DebRoy, T.
TI Synthesis of nanocomposite thin films with self-assembled structures by
pulsed ion beam ablation of MoS2 target
SO MATERIALS LETTERS
LA English
DT Article
DE Wear and Tribology; Coatings; Nanocomposites; Self assembly
AB Nanocomposite films with unusual structures were synthesized by ablating a molybdenum disulfide target with pulsed intense ion beams and depositing the films on substrates kept at 573 K Microstructure of the films was comprised of 10-100 nm size pure molybdenum boulders in an amorphous matrix of Mo and 5 Instead of a single homogeneous phase Tribological studies indicate that frictional contact during the initial run in period can transform the amorphous matrix into crystalline MoS2 with basal planes oriented along the direction of sliding The films appear to have potential for low friction and low wear applications in harsh environments (C) 2010 Elsevier B V All rights reserved
C1 [Prasad, S. V.; Renk, T. J.; Kotula, P. G.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
[DebRoy, T.] Penn State Univ, University Pk, PA 16802 USA.
RP Prasad, SV (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
RI Kotula, Paul/A-7657-2011; DebRoy, Tarasankar/A-2106-2010
OI Kotula, Paul/0000-0002-7521-2759;
FU US Department of Energy s National Nuclear Security Administration [DE
AC04 94AL85000]
FX Sandia National Laboratories is a multi program laboratory operated by
Sandia Corporation a wholly owned subsidiary of Lockheed Martin company
for the US Department of Energy s National Nuclear Security
Administration under contract DE AC04 94AL85000
NR 8
TC 2
Z9 2
U1 1
U2 16
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0167-577X
J9 MATER LETT
JI Mater. Lett.
PD JAN 15
PY 2011
VL 65
IS 1
BP 4
EP 6
DI 10.1016/j.matlet.2010.09.062
PG 3
WC Materials Science, Multidisciplinary; Physics, Applied
SC Materials Science; Physics
GA 689YK
UT WOS:000284966800002
ER
PT J
AU Yuan, ZJ
Luo, ZC
Volkow, ND
Pan, YT
Du, CW
AF Yuan, Zhijia
Luo, Zhongchi
Volkow, Nora D.
Pan, Yingtian
Du, Congwu
TI Imaging separation of neuronal from vascular effects of cocaine on rat
cortical brain in vivo
SO NEUROIMAGE
LA English
DT Article
DE Cocaine; Cerebral blood flow; Calcium [Ca]; Optical imaging; Drug abuse
and addiction; fMRI
ID CEREBRAL-BLOOD-FLOW; OPTICAL COHERENCE TOMOGRAPHY; NEAR-INFRARED
SPECTROSCOPY; LASER SPECKLE; SENSORY STIMULATION; FOCAL CHANGES;
OXYGENATION; CORTEX; MICROVASCULATURE; HEMODYNAMICS
AB MRI techniques to study brain function assume coupling between neuronal activity, metabolism and flow. However, recent evidence of physiological uncoupling between neuronal and cerebrovascular events highlights the need for methods to simultaneously measure these three properties. We report a multimodality optical approach that integrates dual-wavelength laser speckle imaging (measures changes in blood flow, blood volume and hemoglobin oxygenation), digital-frequency-ramping optical coherence tomography (images quantitative 3D vascular network) and Rhod(2) fluorescence (images intracellular calcium for measure of neuronal activity) at high spatiotemporal resolutions (30 mu m, 10 Hz) and over a large field of view (3 x 5 mm(2)). We apply it to assess cocaine's effects in rat cortical brain and show an immediate decrease (3.5 +/- 0.9 min, phase 1) in the oxygen content of hemoglobin and the cerebral blood flow followed by an overshoot (7.1 +/- 0.2 min, phase 2) lasting over 20 min whereas Ca(2+) increased immediately (peaked at t = 4.1 +/- 0.4 min) and remained elevated. This enabled us to identify a delay (2.9 +/- 0.5 min) between peak neuronal and vascular responses in phase 2. The ability of this multimodality optical approach for simultaneous imaging at high spatiotemporal resolutions permits us to distinguish the vascular versus cellular changes of the brain, thus complimenting other neuroimaging modalities for brain functional studies (e. g., PET, fMRI). (C) 2010 Elsevier Inc. All rights reserved.
C1 [Yuan, Zhijia; Luo, Zhongchi; Pan, Yingtian] SUNY Stony Brook, Dept Biomed Engn, Stony Brook, NY 11794 USA.
[Volkow, Nora D.] Natl Inst Alcohol Abuse & Alcoholism, Bethesda, MD 20892 USA.
[Volkow, Nora D.] Natl Inst Drug Abuse, NIH, Bethesda, MD 20892 USA.
[Du, Congwu] SUNY Stony Brook, Dept Anesthesiol, Stony Brook, NY 11794 USA.
[Du, Congwu] Brookhaven Natl Lab, Dept Med, Upton, NY 11973 USA.
RP Pan, YT (reprint author), SUNY Stony Brook, Dept Biomed Engn, Bioengineer Bldg,Rm G06, Stony Brook, NY 11794 USA.
EM Yingtian.Pan@sunysb.edu; congwu@bnl.gov
RI yuan, zhijia/F-4314-2011
FU National Institutes of Health (NIH) [K25-DA021200, 2R01-DK059265,
1RC1DA028534]; Department of Energy (DOE) [LDRD 10-023]
FX The authors thank Rubing Pan for cryosectioning and fluorescence
microscope imaging and analysis of the rat brain specimens. The work was
supported in part by National Institutes of Health (NIH) grants
K25-DA021200 (CD), 2R01-DK059265 (YP) and 1RC1DA028534 (CD and YP), and
by a Department of Energy (DOE) grant LDRD 10-023 (CD).
NR 47
TC 18
Z9 18
U1 0
U2 5
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 1053-8119
J9 NEUROIMAGE
JI Neuroimage
PD JAN 15
PY 2011
VL 54
IS 2
BP 1130
EP 1139
DI 10.1016/j.neuroimage.2010.08.045
PG 10
WC Neurosciences; Neuroimaging; Radiology, Nuclear Medicine & Medical
Imaging
SC Neurosciences & Neurology; Radiology, Nuclear Medicine & Medical Imaging
GA 697AW
UT WOS:000285486000038
PM 20804849
ER
PT J
AU Edmondson, PD
Zhang, Y
Namavar, F
Wang, CM
Zhu, Z
Weber, WJ
AF Edmondson, P. D.
Zhang, Y.
Namavar, F.
Wang, C. M.
Zhu, Z.
Weber, W. J.
TI Defect- and strain-enhanced cavity formation and Au precipitation at
nano-crystalline ZrO2/SiO2/Si interfaces
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article
DE Nano-crystalline zirconia; Grain growth; Oxygen migration; Cavity
formation; Cavity morphology; Au precipitation
ID GATE DIELECTRICS; SILICON; OXYGEN; STABILITY; FILMS; NANOCRYSTALS;
SI(100); ZRO2
AB Defect- and strain-enhanced cavity formation and Au+ precipitation at the interfaces of a nano-crystalline ZrO2/SiO2/Si multilayer structure resulting from 2 MeV Au irradiation at temperatures of 160 and 400 K have been studied. Under irradiation, loss of oxygen is observed, and the nano-crystalline grains in the ZrO2 layer increase in size. In addition, small cavities are observed at the ZrO2/SiO2 interface with the morphology of the cavities being dependent on the damage state of the underlying Si lattice. Elongated cavities are formed when crystallinity is still retained in the heavily-damaged Si substrate; however, the morphology of the cavities becomes spherical when the substrate is amorphized. With further irradiation, the cavities appear to become stabilized and begin to act as gettering sites for the Au. As the cavities become fully saturated with Au, the ZrO2/SiO2 interface then acts as a gettering site for the Au. Analysis of the results suggests that oxygen diffusion along the grain boundaries contributes to the growth of cavities and that oxygen within the cavities may affect the gettering of Au. Mechanisms of defect- and strain-enhanced cavity formation and Au precipitation at the interfaces will be discussed with focus on oxygen diffusion and vacancy accumulation, the role of the lattice strain on the morphology of the cavities, and the effect of the binding free energy of the cavities on the Au precipitation. (C) 2010 Elsevier B.V. All rights reserved.
C1 [Zhang, Y.; Weber, W. J.] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA.
[Edmondson, P. D.; Wang, C. M.; Zhu, Z.] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Edmondson, P. D.; Zhang, Y.; Weber, W. J.] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA.
[Namavar, F.] Univ Nebraska Med Ctr, Omaha, NE 68198 USA.
RP Zhang, Y (reprint author), Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA.
EM zhangy1@ornl.gov
RI Edmondson, Philip/G-5371-2011; Weber, William/A-4177-2008; Zhu,
Zihua/K-7652-2012; Edmondson, Philip/O-7255-2014
OI Weber, William/0000-0002-9017-7365; Edmondson,
Philip/0000-0001-8990-0870
FU Materials Science and Engineering Division, Office of Basic Energy
Sciences, US Department of Energy; UT-Battelle, LLC; Department of
Energy's Office of Biological and Environmental Research, Pacific
Northwest National Laboratory (PNNL); US Department of Energy
[DE-AC05-76RL01830]
FX This work was supported by Materials Science and Engineering Division,
Office of Basic Energy Sciences, US Department of Energy with
UT-Battelle, LLC. A portion of the research was performed using EMSL, a
national scientific user facility sponsored by the Department of
Energy's Office of Biological and Environmental Research located at
Pacific Northwest National Laboratory (PNNL). PNNL is operated for the
US Department of Energy under Contract No. DE-AC05-76RL01830.
NR 20
TC 3
Z9 3
U1 2
U2 17
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
EI 1872-9584
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD JAN 15
PY 2011
VL 269
IS 2
BP 126
EP 132
DI 10.1016/j.nimb.2010.10.014
PG 7
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 717TZ
UT WOS:000287071600009
ER
PT J
AU Dusling, K
Epelbaum, T
Gelis, F
Venugopalan, R
AF Dusling, Kevin
Epelbaum, Thomas
Gelis, Francois
Venugopalan, Raju
TI Role of quantum fluctuations in a system with strong fields: Onset of
hydrodynamical flow
SO NUCLEAR PHYSICS A
LA English
DT Article
DE Heavy ion collisions; Color glass condensate; Thermalization;
Hydrodynamics
ID GLUON DISTRIBUTION-FUNCTIONS; STRONG EXTERNAL SOURCES; HEAVY-ION
COLLISIONS; PARTICLE-PRODUCTION; VISCOUS HYDRODYNAMICS; LARGE NUCLEI;
THERMALIZATION; QUARK; COLLABORATION; PERSPECTIVE
AB Quantum fluctuations are believed to play an important role in the thermalization of classical fields in inflationary cosmology but their relevance for isotropization/thermalization of the classical fields produced in heavy ion collisions is not completely understood. We consider a scalar phi(4) toy model coupled to a strong external source, like in the Color Glass Condensate description of the early time dynamics of ultrarelativistic heavy ion collisions. The leading order classical evolution of the scalar fields is significantly modified by the rapid growth of time-dependent quantum fluctuations, necessitating an all order resummation of such "secular" terms. We show that the resummed expressions cause the system to evolve in accordance with ideal hydrodynamics. We comment briefly on the thermalization of the quantum system and the extension of our results to a gauge theory. (C) 2010 Elsevier B.V. All rights reserved.
C1 [Epelbaum, Thomas; Gelis, Francois] CEA DSM Saclay, Inst Phys Theor, URA 2306, CNRS, F-91191 Gif Sur Yvette, France.
[Dusling, Kevin; Venugopalan, Raju] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA.
RP Gelis, F (reprint author), CEA DSM Saclay, Inst Phys Theor, URA 2306, CNRS, F-91191 Gif Sur Yvette, France.
EM francois.gelis@cea.fr
RI Epelbaum, Thomas/D-1138-2013;
OI Dusling, Kevin/0000-0001-9598-0416
FU DOE [DE-AC02-98CH10886]; Agence Nationale de la Recherche
[ANR-06-BLAN-0285-01]; Brookhaven National Laboratory; Quark-Hadron
Sciences at Yukawa Institute for Theoretical Physics (Kyoto University)
FX We would like to acknowledge useful discussions with Jean-Paul Blaizot,
Kenji Fukushima, Miklos Gyulassy, Tuomas Lappi, Larry McLerran, Rob
Pisarski, Andreas Schafer and Giorgio Torrieri. K.D.'s and R.V.'s
research was supported by DOE Contract No. DE-AC02-98CH10886. F.G.'s
work is supported in part by Agence Nationale de la Recherche via the
programme ANR-06-BLAN-0285-01. We thank the Institute for Nuclear Theory
at the University of Washington for its hospitality. One of us (F.G.)
would like to thank Brookhaven National Laboratory as well as the Yukawa
International Program for Quark-Hadron Sciences at Yukawa Institute for
Theoretical Physics (Kyoto University) for partial support during the
completion of this work.
NR 64
TC 61
Z9 61
U1 0
U2 1
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0375-9474
J9 NUCL PHYS A
JI Nucl. Phys. A
PD JAN 15
PY 2011
VL 850
IS 1
BP 69
EP 109
DI 10.1016/j.nuclphysa.2010.11.009
PG 41
WC Physics, Nuclear
SC Physics
GA 720GY
UT WOS:000287270000005
ER
PT J
AU Tribedy, P
Venugopalan, R
AF Tribedy, Prithwish
Venugopalan, Raju
TI Saturation models of HERA DIS data and inclusive hadron distributions in
p plus p collisions at the LHC
SO NUCLEAR PHYSICS A
LA English
DT Article
DE Hadron production; Saturation; LHC p plus p collision; CGC; Deep
inelastic scattering
ID COLOR GLASS CONDENSATE; GLUON DISTRIBUTION-FUNCTIONS;
DEEP-INELASTIC-SCATTERING; STRONG EXTERNAL SOURCES; SQUARE-ROOT-S;
TRANSVERSE-MOMENTUM; SMALL-X; NUCLEAR COLLISIONS; HIGH-ENERGIES; SCALING
LAWS
AB Unintegrated gluon distributions sensitive to the transverse spatial distribution of gluons in the proton are extracted from data on exclusive and diffractive final states at HERA in the dipole approach. These unintegrated gluon distributions can be used to compute inclusive hadron production in p + p collisions at the LHC. In this paper, we consider a number of saturation models with differing dynamical assumptions that give good fits to the available HERA data. We apply these models to study the rapidity and transverse momentum dependence of the LHC data up to root s = 7 TeV. We examine the sensitivity of these results to parameters that are not constrained by the HERA data and comment on similarities and differences with previous work. We compute the n-particle inclusive multiplicity distribution and show that the LHC p p results are in agreement with predictions for multi-particle production in the Color Glass Condensate approach. This result has significant ramifications for the interpretation of multi-particle correlations in high multiplicity events at the LHC. (C) 2010 Elsevier B.V. All rights reserved.
C1 [Tribedy, Prithwish] Ctr Variable Energy Cyclotron, Kolkata 700064, W Bengal, India.
[Venugopalan, Raju] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA.
RP Tribedy, P (reprint author), Ctr Variable Energy Cyclotron, 1-AF Bidhan Nagar, Kolkata 700064, W Bengal, India.
EM ptribedy@veccal.ernet.in
FU US Department of Energy [DE-AC02-98CH10886]
FX R.V. was supported by the US Department of Energy under DOE Contract No.
DE-AC02-98CH10886. We thank Kevin Dusling and Francois Gelis for a
careful reading of the manuscript. We gratefully acknowledge useful
conversations with Javier Albacete, Guillaume Beuf, Subhasis
Chattopadhyay, Adrian Dumitru, Tuomas Lappi, Larry McLerran, Zhangbo
Kang and Feng Yuan.
NR 95
TC 51
Z9 51
U1 0
U2 1
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0375-9474
EI 1873-1554
J9 NUCL PHYS A
JI Nucl. Phys. A
PD JAN 15
PY 2011
VL 850
IS 1
BP 136
EP 156
DI 10.1016/j.nuclphysa.2010.12.006
PG 21
WC Physics, Nuclear
SC Physics
GA 720GY
UT WOS:000287270000007
ER
PT J
AU Rakich, PT
Wang, Z
Davids, P
AF Rakich, Peter T.
Wang, Zheng
Davids, Paul
TI Scaling of optical forces in dielectric waveguides: rigorous connection
between radiation pressure and dispersion
SO OPTICS LETTERS
LA English
DT Article
ID POTENTIALS; SYSTEMS
AB We show that eigenmodes of dielectric optical waveguides exert surface dilation forces on waveguide boundaries owing to radiation pressure, and we develop an exact scaling law relating modal dispersion of an arbitrary dielectric waveguide to the magnitude of optical forces generated by radiation pressure. This result points to highly dispersive waveguides as an optimal choice for the generation of large optical forces in nano-optomechanical systems. Exact agreement with ab initio calculations is demonstrated.
C1 [Rakich, Peter T.; Davids, Paul] Sandia Natl Labs, Albuquerque, NM 87185 USA.
[Wang, Zheng] MIT, Cambridge, MA 02139 USA.
RP Rakich, PT (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
EM rakich@alum.mit.edu
RI Wang, Zheng/B-9804-2009
FU U.S. Department of Energy's National Nuclear Security Administration
(NNSA) [DE-AC04-94AL85000]; Director of Defense Research and Engineering
(DDR&E) under Air Force [FA8721-05-C-0002]; Defense Advanced Research
Projects Agency (DARPA)
FX Sandia Laboratory is operated by Sandia Co., a Lockheed Martin Company,
for the U.S. Department of Energy's National Nuclear Security
Administration (NNSA) under contract DE-AC04-94AL85000. This work was
supported by the Director of Defense Research and Engineering (DDR&E)
under Air Force contract FA8721-05-C-0002 and by a Defense Advanced
Research Projects Agency (DARPA) Seedling managed by M. Haney and S.
Rodgers of DARPA's Microsystems Technology Office (MTO). Thanks to R.
Kekatpure and C. Reinke for careful reading of manuscript.
NR 13
TC 18
Z9 18
U1 2
U2 7
PU OPTICAL SOC AMER
PI WASHINGTON
PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA
SN 0146-9592
EI 1539-4794
J9 OPT LETT
JI Opt. Lett.
PD JAN 15
PY 2011
VL 36
IS 2
BP 217
EP 219
DI 10.1364/OL.36.000217
PG 3
WC Optics
SC Optics
GA 706BC
UT WOS:000286188100041
PM 21263505
ER
PT J
AU Gab, J
John, H
Blum, MM
AF Gaeb, Juergen
John, Harald
Blum, Marc-Michael
TI Formation of pyrophosphate-like adducts from nerve agents sarin, soman
and cyclosarin in phosphate buffer: Implications for analytical and
toxicological investigations
SO TOXICOLOGY LETTERS
LA English
DT Article
DE Organophosphorus compounds; Nerve agents; Phosphate buffer; NMR;
LC-ESI-MS/MS
ID CHEMICAL WEAPONS CONVENTION; INVERSE NMR-SPECTROSCOPY; LC-ESI-MS/MS;
ORGANOPHOSPHORUS COMPOUNDS; DECONTAMINATION SOLUTIONS;
DEGRADATION-PRODUCTS; TRACE AMOUNTS; HYDROLYSIS
AB Phosphate buffer is frequently used in biological, biochemical and biomedical applications especially when pH is to be controlled around the physiological value of 7.4. One of the prerequisites of a buffer compound among good buffering capacity and pH stability over time is its non-reactivity with other constituents of the solution. This is especially important for quantitative analytical or toxicological assays. Previous work has identified a number of amino alcohol buffers like TRIS to react with G-type nerve agents satin, soman and cyclosarin to form stable phosphonic diesters. In case of phosphate buffer we were able to confirm not only the rapid hydrolysis of these agents to the respective alkyl methylphosphonates but also the formation of substantial amounts of pyrophosphate-like adducts (phosphorylated methylphosphonates), which very slowly hydrolyzed following zero-order kinetics. This led to a complex mixture of phosphorus containing species with changing concentrations over time. We identified the molecular structure of these buffer adducts using 1D (1)H-(31)P HSQC NMR and LC-ESI-MS/MS techniques. Reaction rates of adduct formation are fast enough to compete with hydrolysis in aqueous solution and to yield substantial amounts of buffer adduct over the course of just a couple of minutes. Possible reaction mechanisms are discussed with respect to the formation and subsequent hydrolysis of the pyrophosphate-like compounds as well as the increased rate of hydrolysis of the nerve agent to the corresponding alkyl methylphosphonates. In summary, the use of phosphate buffer for the development of new assays with sarin, soman and cyclosarin is discouraged. Already existing protocols should be carefully reexamined on an individual basis. (C) 2010 Elsevier Ireland Ltd. All rights reserved.
C1 [Gaeb, Juergen; Blum, Marc-Michael] Blum Sci Serv, D-80331 Munich, Germany.
[Gaeb, Juergen] Univ Marburg, Dept Pharmaceut Chem, D-35032 Marburg, Germany.
[John, Harald] Bundeswehr Inst Pharmacol & Toxicol, D-80937 Munich, Germany.
RP Blum, MM (reprint author), Los Alamos Natl Lab, Biosci Div, POB 1663, Los Alamos, NM 87545 USA.
EM mmblum@blum-scientific.de
RI Blum, Marc-Michael/M-7691-2014
OI Blum, Marc-Michael/0000-0003-1856-2071
FU German Ministry of Defense [E/UR3G/6G115/6A801]
FX The German Ministry of Defense supported this work under contract number
E/UR3G/6G115/6A801.
NR 20
TC 5
Z9 5
U1 3
U2 16
PU ELSEVIER IRELAND LTD
PI CLARE
PA ELSEVIER HOUSE, BROOKVALE PLAZA, EAST PARK SHANNON, CO, CLARE, 00000,
IRELAND
SN 0378-4274
J9 TOXICOL LETT
JI Toxicol. Lett.
PD JAN 15
PY 2011
VL 200
IS 1-2
BP 34
EP 40
DI 10.1016/j.toxlet.2010.10.011
PG 7
WC Toxicology
SC Toxicology
GA 719PJ
UT WOS:000287216800005
PM 20979985
ER
PT J
AU Ottinger, NA
Toops, TJ
Ke, N
Bunting, BG
Howe, J
AF Ottinger, Nathan A.
Toops, Todd J.
Ke Nguyen
Bunting, Bruce G.
Howe, Jane
TI Effect of lean/rich high temperature aging on NO oxidation and NOx
storage/release of a fully formulated lean NOx trap
SO APPLIED CATALYSIS B-ENVIRONMENTAL
LA English
DT Article
DE DRIFTS; Lean NOx trap; Thermal aging; Fully formulated; PGM dispersion;
NOx storage capacity; NOx release; STEM; XRD
ID SUPPORTED PLATINUM CATALYSTS; STORAGE-REDUCTION CATALYST; FT-IR; SCR
CATALYSTS; SURFACE; PT/BAO/AL2O3; SYSTEM; OXIDE; NSR; REGENERATION
AB Commercial-intent lean NOx traps (LNTs) containing Pt, Pd, Rh, Ba, Ce, Zr, and other proprietary additives were thermally aged at 750.880, 930, and 1070 degrees C using lean/rich cycling and then investigated for effects of aging on NOx storage capacity, NO oxidation, NOx reduction, and materials properties. Additionally. DRIFTS analysis was used to determine the effects of high temperature aging on surface chemistry and NOx storage. As platinum group metal (PGM) dispersion decreases with aging, the NO turnover frequency (TOF) for NO oxidation at 200, 300, and 400 degrees C is shown to increase. The fraction of stored NOx that is successfully reduced also increases with aging, and it is suggested that this is accounted for by a slower release of more stable NOx species resulting from thermal aging. NOx storage and NOx release experiments performed with DRIFTS at 200, 300, and 400 degrees C indicate that a substantial amount of NOx is stored on Al2O3 as nitrates at 200 and 300 degrees C before aging. However, almost no nitrates are seen on alumina after aging at 900 and 1000 degrees C, resulting in a significant reduction in NOx storage capacity. This is most likely due to a 45% reduction in total surface area and a high temperature redispersion of Ba over remaining alumina sites. No evidence of BaAl2O4 was observed with XRD. (C) 2010 Elsevier B.V. All rights reserved.
C1 [Ottinger, Nathan A.; Toops, Todd J.; Bunting, Bruce G.] Oak Ridge Natl Lab, Fuels Engines & Emiss Res Ctr, Knoxville, TN 37932 USA.
[Ke Nguyen] Univ Tennessee, Mech Aerosp & Biomed Engn Dept, Knoxville, TN 37996 USA.
[Howe, Jane] Oak Ridge Natl Lab, High Temp Mat Lab, Oak Ridge, TN 37831 USA.
RP Toops, TJ (reprint author), Oak Ridge Natl Lab, Fuels Engines & Emiss Res Ctr, 2360 Cherahala Blvd, Knoxville, TN 37932 USA.
EM toopstj@ornl.gov
RI Howe, Jane/G-2890-2011
FU U.S. Department of Energy (DOE), Office of FreedomCar and Vehicle
Technologies; Assistant Secretary for Energy Efficiency and Renewable
Energy, Office of FreedomCar and Vehicle Technologies; U.S. Department
of Energy [DE-AC05-00OR22725]
FX This work was funded by the U.S. Department of Energy (DOE), Office of
FreedomCar and Vehicle Technologies, and the fully for mulated LNTs were
provided by Delphi, whose catalyst group is now part of Umicore. The
catalyst samples were coated approximately 4 years ago and should not be
considered representative of current formulations. The STEM measurements
and analysis were sponsored by the Assistant Secretary for Energy
Efficiency and Renewable Energy, Office of FreedomCar and Vehicle
Technologies, as part of the High Temperature Materials Laboratory User
Program, Oak Ridge National Laboratory, managed by UT-Battelle, LLC, for
the U.S. Department of Energy under contract number DE-AC05-00OR22725.
NR 55
TC 9
Z9 10
U1 2
U2 42
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0926-3373
J9 APPL CATAL B-ENVIRON
JI Appl. Catal. B-Environ.
PD JAN 14
PY 2011
VL 101
IS 3-4
BP 486
EP 494
DI 10.1016/j.apcatb.2010.10.020
PG 9
WC Chemistry, Physical; Engineering, Environmental; Engineering, Chemical
SC Chemistry; Engineering
GA 717ST
UT WOS:000287068400038
ER
PT J
AU Qiao, JA
Tan, H
Qiu, Y
Balasubramanian, K
AF Qiao, Juan
Tan, Hang
Qiu, Yong
Balasubramanian, K.
TI Investigation of a binuclear gallium complex with bipolar charge
transporting capability for organic light-emitting diodes (vol 124,
024719, 2006)
SO JOURNAL OF CHEMICAL PHYSICS
LA English
DT Correction
C1 [Qiao, Juan; Tan, Hang; Qiu, Yong] Tsinghua Univ, Dept Chem, Minist Educ, Key Lab Organ Optoelect & Mol Engn, Beijing 100084, Peoples R China.
[Balasubramanian, K.] Calif State Univ E Bay, Dept Math & Comp Sci, Hayward, CA 94542 USA.
[Balasubramanian, K.] Lawrence Livermore Natl Lab, Chem & Mat Sci Directorate, Livermore, CA 94550 USA.
[Balasubramanian, K.] Univ Calif Berkeley, Lawrence Berkeley Lab, Glenn T Seaborg Ctr, Berkeley, CA 94720 USA.
RP Qiu, Y (reprint author), Tsinghua Univ, Dept Chem, Minist Educ, Key Lab Organ Optoelect & Mol Engn, Beijing 100084, Peoples R China.
EM qiuy@mail.tsinghua.edu.cn
RI Qiao, Juan/M-1301-2014
NR 1
TC 0
Z9 0
U1 0
U2 5
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0021-9606
J9 J CHEM PHYS
JI J. Chem. Phys.
PD JAN 14
PY 2011
VL 134
IS 2
AR 029901
DI 10.1063/1.3530285
PG 1
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA 709WK
UT WOS:000286471900082
ER
PT J
AU Dhakal, P
Yoshino, H
Oh, JI
Kikuchi, K
Naughton, MJ
AF Dhakal, Pashupati
Yoshino, Harukazu
Oh, Jeong Il
Kikuchi, Koichi
Naughton, Michael J.
TI Upper critical field of the molecular organic superconductor
(DMET)(2)I-3
SO PHYSICAL REVIEW B
LA English
DT Article
ID MAGNETIC-FIELD; (TMTSF)2CLO4; STATE; MAGNETORESISTANCE; SPIN;
(TMTSF)(2)CLO4; RELAXATION; CONDUCTORS; ANISOTROPY; PRESSURE
AB We report the temperature dependence of the upper critical magnetic field in the quasi-one-dimensional molecular organic superconductor (DMET)(2)I-3, for magnetic field applied along the intrachain, interchain, and interplane directions. The upper critical field tends to saturation at low temperature for field in all directions and does not exceed the Pauli paramagnetic limit. Superconductivity in (DMET)(2)I-3 thus appears to be conventional spin singlet, in contrast to the status of the isostructural Bechgaard salts. We also discuss a magnetic field-induced dimensional crossover effect in the normal metallic state which had previously appeared to be associated with superconductivity.
C1 [Dhakal, Pashupati; Oh, Jeong Il; Naughton, Michael J.] Boston Coll, Dept Phys, Chestnut Hill, MA 02467 USA.
[Yoshino, Harukazu] Osaka City Univ, Grad Sch Sci, Osaka 5588585, Japan.
[Kikuchi, Koichi] Tokyo Metropolitan Univ, Grad Sch Sci & Engn, Tokyo 1920397, Japan.
RP Dhakal, P (reprint author), Jefferson Lab, Newport News, VA 23606 USA.
EM naughton@bc.edu
RI OH, JEONG IL/I-8776-2012; Koichi, Kikuchi/G-9694-2014
FU National Science Foundation [DMR-0605339]
FX This work was supported by the National Science Foundation, under Grant
No. DMR-0605339.
NR 38
TC 3
Z9 4
U1 0
U2 4
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD JAN 14
PY 2011
VL 83
IS 1
AR 014505
DI 10.1103/PhysRevB.83.014505
PG 5
WC Physics, Condensed Matter
SC Physics
GA 713LL
UT WOS:000286739400003
ER
PT J
AU Zhao, YF
Ban, CM
Xu, QA
Wei, SH
Dillon, AC
AF Zhao, Yufeng
Ban, Chunmei
Xu, Qiang
Wei, Su-Huai
Dillon, Anne C.
TI Charge-driven structural transformation and valence versatility of boron
sheets in magnesium borides
SO PHYSICAL REVIEW B
LA English
DT Article
ID ELEMENTAL BORON; CLUSTERS; PLANAR; TRANSITION; NANOTUBES; BATTERIES;
BORANES
AB Based on density-functional theory simulations, we have predicted a series of stable magnesium borides, MgB(x), with a broad range of stoichiometries, 2 < x <= 16, by removing magnesium atoms from MgB(2). The layered boron structures are preserved through an in-plane topological transformation of the hexagonal lattice domains to triangular lattice domains. The process can be reversibly switched as the charge transfer changes with Mg insertion and extraction. The mechanism of such a charge-driven transformation originates from the versatile valence state of boron in its planar form. The discovery of these new physical phenomena suggests the design of a high-capacity magnesium boron battery.
C1 [Zhao, Yufeng; Ban, Chunmei; Xu, Qiang; Wei, Su-Huai; Dillon, Anne C.] Natl Renewable Energy Lab, Golden, CO 80401 USA.
RP Zhao, YF (reprint author), Natl Renewable Energy Lab, Golden, CO 80401 USA.
FU U.S. Department of Energy through the DOE Office of Energy Efficiency
and Renewable Energy Office of the Vehicle Technologies Program
[DE-AC36-08GO28308]; NREL
FX This work was funded by the U.S. Department of Energy under subcontract
No. DE-AC36-08GO28308 through the DOE Office of Energy Efficiency and
Renewable Energy Office of the Vehicle Technologies Program and NREL's
Laboratory Directed Research and Development Program.
NR 34
TC 4
Z9 4
U1 0
U2 12
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD JAN 14
PY 2011
VL 83
IS 3
AR 035406
DI 10.1103/PhysRevB.83.035406
PG 5
WC Physics, Condensed Matter
SC Physics
GA 713WF
UT WOS:000286767400002
ER
PT J
AU Stratakis, D
Fernow, RC
Gallardo, JC
Palmer, RB
Neuffer, DV
AF Stratakis, Diktys
Fernow, Richard C.
Gallardo, Juan C.
Palmer, Robert B.
Neuffer, David V.
TI Numerical study of a magnetically insulated front-end channel for a
neutrino factory
SO PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS
LA English
DT Article
ID OSCILLATION; PHYSICS
AB A neutrino factory, which can deliver an intense flux of similar to 10(21) neutrinos per year from a multi-GeV stored muon beam, is seemingly the ideal tool for studying neutrino oscillations and CP violations for leptons. The front end of this facility plays a critical role in determining the number of muons that can be accepted by the downstream accelerators. Delivering peak performance requires transporting the muon beams through long sections of a beam channel containing high-gradient rf cavities and strong focusing solenoids. Here, we propose a novel scheme to improve the performance of the cavities, thereby increasing the number of muons within the acceptance of the accelerator chain. The key element of our new scheme is to apply a tangential magnetic field to the rf surfaces, thus forcing any field-emitted electrons to return to the surface before gaining enough energy to damage the cavity. We incorporate this idea into a new lattice design for a neutrino factory, and detail its performance numerically. Although our proposed front-end channel requires more rf power than conventional pillbox designs, it provides enough beam cooling and muon production to be a feasible option for a neutrino factory.
C1 [Stratakis, Diktys; Fernow, Richard C.; Gallardo, Juan C.; Palmer, Robert B.] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA.
[Neuffer, David V.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
RP Stratakis, D (reprint author), Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA.
OI Gallardo, Juan C/0000-0002-5191-3067
FU U.S. Department of Energy [DE-AC02-98CH10886]
FX The authors are grateful to J. T. Keane, J. Norem, J. S. Berg, and H.
Kirk for useful discussions. This work is supported by the U.S.
Department of Energy, Contract No. DE-AC02-98CH10886.
NR 31
TC 7
Z9 7
U1 1
U2 2
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-4402
J9 PHYS REV SPEC TOP-AC
JI Phys. Rev. Spec. Top.-Accel. Beams
PD JAN 14
PY 2011
VL 14
IS 1
AR 011001
DI 10.1103/PhysRevSTAB.14.011001
PG 10
WC Physics, Nuclear; Physics, Particles & Fields
SC Physics
GA 709FM
UT WOS:000286423300001
ER
PT J
AU Fernandez, MM
Cho, S
De Marzi, MC
Kerzic, MC
Robinson, H
Mariuzza, RA
Malchiodi, EL
AF Fernandez, Marisa M.
Cho, Sangwoo
De Marzi, Mauricio C.
Kerzic, Melissa C.
Robinson, Howard
Mariuzza, Roy A.
Malchiodi, Emilio L.
TI Crystal Structure of Staphylococcal Enterotoxin G (SEG) in Complex with
a Mouse T-cell Receptor beta Chain
SO JOURNAL OF BIOLOGICAL CHEMISTRY
LA English
DT Article
ID MHC CLASS-II; TOXIC-SHOCK-SYNDROME; 3-DIMENSIONAL STRUCTURE; AFFINITY
MATURATION; BACTERIAL SUPERANTIGENS; SIGNALING COMPLEXES; IN-VIVO;
BINDING; AUREUS; ZINC
AB Superantigens (SAgs) are bacterial or viral toxins that bind MHC class II (MHC-II) molecules and T-cell receptor (TCR) in a nonconventional manner, inducing T-cell activation that leads to inflammatory cytokine production, which may result in acute toxic shock. In addition, the emerging threat of purpura fulminans and community-associated meticillin-resistant Staphylococcus aureus emphasizes the importance of a better characterization of SAg binding to their natural ligands that may allow the development of reagents to neutralize their action. The three-dimensional structure of the complex between a mouse TCR beta chain (mV beta 8.2) and staphylococcal enterotoxin G (SEG) at 2.0 angstrom resolution revealed a binding site that does not conserve the "hot spots" present in mV beta 8.2-SEC2, mV beta 8.2-SEC3, mV beta 8.2-SEB, and mV beta 8.2-SPEA complexes. Analysis of the mV beta 8.2-SEG interface allowed us to explain the higher affinity of this complex compared with the others, which may account for the early activation of T-cells bearing mV beta 8.2 by SEG. This mode of interaction between SEG and mV beta 8.2 could be an adaptive advantage to bestow on the pathogen a faster rate of colonization of the host.
C1 [Malchiodi, Emilio L.] Univ Buenos Aires, Fac Farm & Bioquim, CONICET, Catedra Inmunol, RA-1113 Buenos Aires, DF, Argentina.
[Malchiodi, Emilio L.] Univ Buenos Aires, Fac Farm & Bioquim, CONICET, Inst Estudios Inmunidad Humoral Prof Ricardo Marg, RA-1113 Buenos Aires, DF, Argentina.
[Fernandez, Marisa M.; Cho, Sangwoo; Kerzic, Melissa C.; Mariuzza, Roy A.; Malchiodi, Emilio L.] Univ Maryland, WM Keck Lab Struct Biol, Rockville, MD 20850 USA.
[Fernandez, Marisa M.; Cho, Sangwoo; Kerzic, Melissa C.; Mariuzza, Roy A.; Malchiodi, Emilio L.] Inst Biosci & Biotechnol Res, Rockville, MD 20850 USA.
[De Marzi, Mauricio C.] Univ Nacl Lujan, Dept Ciencias Basicas, RA-6700 Buenos Aires, DF, Argentina.
[Robinson, Howard] Brookhaven Natl Lab, Dept Biol, Upton, NY 11973 USA.
RP Mariuzza, RA (reprint author), 9600 Gudelsky Dr, Rockville, MD 20850 USA.
EM mariuzza@carb.nist.gov; emalchio@ffyb.uba.ar
FU National Institutes of Health [AI36900, AI073654]; Agencia Nacional de
Promocion Cientifica y Tecnica [PICT 38293, 450]; National Multiple
Sclerosis Society [RG2747]; Offices of Biological and Environmental
Research; Basic Energy Sciences of the U.S. Department of Energy;
National Center for Research Resources of the National Institutes of
Health; Fogarty International Center [TW007972]; International Centre
for Genetic Engineering and Biotechnology [CRP/ARG09-02]
FX This work was supported, in whole or in part, by National Institutes of
Health Grants AI36900 and AI073654. This work was also supported by
Agencia Nacional de Promocion Cientifica y Tecnica Grant PICT 38293 (to
E. L. M.) and 450 (to M. M. F.); and National Multiple Sclerosis Society
Grant RG2747 (to R. A. M.). Financial support for use of the National
Synchrotron Light Source comes principally from the Offices of
Biological and Environmental Research and of Basic Energy Sciences of
the U.S. Department of Energy and from the National Center for Research
Resources of the National Institutes of Health.; Supported by the
Fogarty International Center (TW007972) and International Centre for
Genetic Engineering and Biotechnology (CRP/ARG09-02).
NR 41
TC 6
Z9 7
U1 0
U2 7
PU AMER SOC BIOCHEMISTRY MOLECULAR BIOLOGY INC
PI BETHESDA
PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3996 USA
SN 0021-9258
J9 J BIOL CHEM
JI J. Biol. Chem.
PD JAN 14
PY 2011
VL 286
IS 2
BP 1189
EP 1195
DI 10.1074/jbc.M110.142471
PG 7
WC Biochemistry & Molecular Biology
SC Biochemistry & Molecular Biology
GA 703TU
UT WOS:000286005000030
PM 21059660
ER
PT J
AU Davis, JA
Calhoun, TR
Nugent, KA
Quiney, HM
AF Davis, J. A.
Calhoun, T. R.
Nugent, K. A.
Quiney, H. M.
TI Ultrafast optical multidimensional spectroscopy without interferometry
SO JOURNAL OF CHEMICAL PHYSICS
LA English
DT Article
ID FOURIER-TRANSFORM SPECTROSCOPY; PHOTON-ECHOES; 2-DIMENSIONAL
SPECTROSCOPY; ELECTRONIC SPECTROSCOPY; PHASE RETRIEVAL; QUANTUM-WELLS;
LASER-PULSES; COHERENCE; PHOTOSYNTHESIS; MOLECULES
AB We present here the details of a phase retrieval technique that provides access to multidimensional modalities that are not currently available using existing interferometric techniques. The development of multidimensional optical spectroscopy has facilitated significant insights into electronic processes in physics, chemistry, and biology. The versatility and number of available techniques are, however, significantly limited by the requirement that the detection be interferometric. Many of these techniques are closely related to the vast range of multidimensional NMR spectroscopies, which revolutionized analytical chemistry more than 30 years ago. We focus here on the specific case of two-color multidimensional spectroscopy (analogous to heteronuclear NMR) and discuss the details of an iterative algorithm that recovers the relative phase relationships required to perform the Fourier transformation and find the unique solution for the 2D spectrum. A detailed guide is provided that describes the practical implementation of such algorithms. The effectiveness and accuracy of the phase retrieval process are assessed for simulated one-and two-color experiments. It is also compared with one-color experimental data for which the target phase information has been obtained independently by interferometry. In all the cases, the present algorithm yields results that compare well with the solutions obtained by other means. There are, however, some limitations and potential pitfalls that are identified and discussed. We conclude with a discussion of the potential applications and further advances that may be possible by adopting iterative phase retrieval algorithms of the type discussed here. (C) 2011 American Institute of Physics. [doi:10.1063/1.3528985]
C1 [Davis, J. A.; Nugent, K. A.; Quiney, H. M.] Univ Melbourne, Sch Phys, ARC Ctr Excellence Coherent Xray Sci, Melbourne, Vic 3010, Australia.
[Davis, J. A.] Swinburne Univ Technol, Ctr Atom Opt & Ultrafast Spect, Hawthorn, Vic 3122, Australia.
[Calhoun, T. R.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.
[Calhoun, T. R.] Univ Calif Berkeley, QB3 Inst, Berkeley, CA 94720 USA.
[Calhoun, T. R.] Lawrence Berkeley Natl Lab, Phys Biosci Div, Berkeley, CA 94720 USA.
RP Davis, JA (reprint author), Univ Melbourne, Sch Phys, ARC Ctr Excellence Coherent Xray Sci, Melbourne, Vic 3010, Australia.
EM JDavis@swin.edu.au
RI Davis, Jeffrey/C-6090-2008; Nugent, Keith/J-2699-2012; Nugent,
Keith/I-4154-2016
OI Davis, Jeffrey/0000-0003-4537-4084; Nugent, Keith/0000-0003-1522-8991;
Nugent, Keith/0000-0002-4281-3478
FU Australian Research Council; ARC Centre of Excellence for Coherent X-ray
Science
FX This work was supported by a Discovery Project grant from the Australian
Research Council. H. Q. also acknowledges the support of the ARC Centre
of Excellence for Coherent X-ray Science.
NR 37
TC 2
Z9 2
U1 0
U2 7
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0021-9606
J9 J CHEM PHYS
JI J. Chem. Phys.
PD JAN 14
PY 2011
VL 134
IS 2
AR 024504
DI 10.1063/1.3528985
PG 12
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA 709WK
UT WOS:000286471900045
PM 21241117
ER
PT J
AU Minh, DDL
Chodera, JD
AF Minh, David D. L.
Chodera, John D.
TI Estimating equilibrium ensemble averages using multiple time slices from
driven nonequilibrium processes: Theory and application to free
energies, moments, and thermodynamic length in single-molecule pulling
experiments
SO JOURNAL OF CHEMICAL PHYSICS
LA English
DT Article
ID SYSTEMS; EQUALITY
AB Recently discovered identities in statistical mechanics have enabled the calculation of equilibrium ensemble averages from realizations of driven nonequilibrium processes, including single-molecule pulling experiments and analogous computer simulations. Challenges in collecting large data sets motivate the pursuit of efficient statistical estimators that maximize use of available information. Along these lines, Hummer and Szabo developed an estimator that combines data from multiple time slices along a driven nonequilibrium process to compute the potential of mean force. Here, we generalize their approach, pooling information from multiple time slices to estimate arbitrary equilibrium expectations. Our expression may be combined with estimators of path-ensemble averages, including existing optimal estimators that use data collected by unidirectional and bidirectional protocols. We demonstrate the estimator by calculating free energies, moments of the polymer extension, the thermodynamic metric tensor, and the thermodynamic length in a model single-molecule pulling experiment. Compared to estimators that only use individual time slices, our multiple time-slice estimators yield substantially smoother estimates and achieve lower variance for higher-order moments. c 2011 American Institute of Physics. [doi: 10.1063/1.3516517]
C1 [Minh, David D. L.] Argonne Natl Lab, Biosci Div, Argonne, IL 60439 USA.
[Chodera, John D.] Univ Calif Berkeley, Calif Inst Quantitat Biosci QB3, Berkeley, CA 94720 USA.
RP Minh, DDL (reprint author), Argonne Natl Lab, Biosci Div, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM daveminh@anl.gov; jchodera@berkeley.edu
RI Minh, David/A-4655-2009
OI Minh, David/0000-0002-4802-2618
FU Argonne; QB3-Berkeley; UChicago Argonne, LLC, Operator of Argonne
National Laboratory, a U.S. Department of Energy Office of Science
laboratory [AC02-06CH11357]
FX The authors thank David Sivak (LBNL), Gabriel Stoltz (CERMICS, Ecole des
Ponts ParisTech), and Attila Szabo (NIH) for insightful discussion and
helpful feedback. D.D.L.M acknowledges support from a Director's
Postdoctoral Fellowship at Argonne and J.D.C from a QB3-Berkeley
Distinguished Postdoctoral Fellowship.; The submitted paper has been
created by UChicago Argonne, LLC, Operator of Argonne National
Laboratory, a U.S. Department of Energy Office of Science laboratory,
which is operated under Contract No. DE-AC02-06CH11357. The U.S.
Government retains for itself, and others acting on its behalf, a
paid-up nonexclusive, irrevocable worldwide license in the said article
to reproduce, prepare derivative works, distribute copies to the public,
and perform publicly and display publicly, by or on behalf of the
Government.
NR 31
TC 10
Z9 10
U1 0
U2 5
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0021-9606
J9 J CHEM PHYS
JI J. Chem. Phys.
PD JAN 14
PY 2011
VL 134
IS 2
AR 024111
DI 10.1063/1.3516517
PG 9
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA 709WK
UT WOS:000286471900012
PM 21241084
ER
PT J
AU Hornung, P
Maier, M
Alushin, GM
Lander, GC
Nogales, E
Westermann, S
AF Hornung, Peter
Maier, Michael
Alushin, Gregory M.
Lander, Gabriel C.
Nogales, Eva
Westermann, Stefan
TI Molecular Architecture and Connectivity of the Budding Yeast Mtw1
Kinetochore Complex
SO JOURNAL OF MOLECULAR BIOLOGY
LA English
DT Article
DE kinetochore; KMN network; chromosome segregation; force generation;
microtubule
ID MICROTUBULE ATTACHMENT SITE; OUTER KINETOCHORE; CENP-A; RING COMPLEX;
PROTEIN; DAM1; SEGREGATION; CHECKPOINT; INTERFACE; CORE
AB Kinetochores are large multiprotein complexes that connect centromeres to spindle microtubules in all eukaryotes. Among the biochemically distinct kinetochore complexes, the conserved four-protein Mtw1 complex is a central part of the kinetochore in all organisms. Here we present the biochemical reconstitution and characterization of the budding yeast Mtw1 complex. Direct visualization by electron microscopy revealed an elongated bilobed structure with a 25-nm-long axis. The complex can be assembled from two stable heterodimers consisting of Mtw1p-Nnf1p and Dsn1p-Nsl1p, and it interacts directly with the microtubule-binding Ndc80 kinetochore complex via the centromere-proximal Spc24/Spc25 head domain. In addition, we have reconstituted a partial Ctf19 complex and show that it directly associates with the Mtw1 complex in vitro. Ndc80 and Ctf19 complexes do not compete for binding to the Mtw1 complex, suggesting that Mtw1 can bridge the microtubule-binding components of the kinetochore to the inner centromere. (C) 2010 Elsevier Ltd. All rights reserved.
C1 [Hornung, Peter; Maier, Michael; Westermann, Stefan] Res Inst Mol Pathol, A-1030 Vienna, Austria.
[Alushin, Gregory M.] Univ Calif Berkeley, Biophys Grad Grp, Berkeley, CA 94720 USA.
[Lander, Gabriel C.; Nogales, Eva] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Life Sci, Berkeley, CA 94720 USA.
[Nogales, Eva] Univ Calif Berkeley, Dept Mol & Cell Biol, Berkeley, CA 94720 USA.
[Nogales, Eva] Howard Hughes Med Inst, Chevy Chase, MD USA.
RP Westermann, S (reprint author), Res Inst Mol Pathol, Dr Bohr Gasse 7, A-1030 Vienna, Austria.
EM westermann@imp.ac.at
RI Maier, Michael/O-8088-2015;
OI Maier, Michael/0000-0001-8841-5283; Lander, Gabriel
C./0000-0003-4921-1135
FU European Research Council under the European Community [FP7/2007-2013)];
European Research Council [203499]; Austrian Science Fund FWF [SFB
F34-B03]; National Institutes of Health [PO1GM51487]; Damon Ranyon
Foundation
FX Research leading to these results received funding from the European
Research Council under the European Community's Seventh Framework
Program (S.W.; FP7/2007-2013) /European Research Council grant
(agreement no. 203499), the Austrian Science Fund FWF (S.W.; SFB
F34-B03), the National Institutes of Health (E.N.; PO1GM51487), and the
Damon Ranyon Foundation (G.C.L.).
NR 35
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U1 1
U2 10
PU ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
PI LONDON
PA 24-28 OVAL RD, LONDON NW1 7DX, ENGLAND
SN 0022-2836
J9 J MOL BIOL
JI J. Mol. Biol.
PD JAN 14
PY 2011
VL 405
IS 2
BP 548
EP 559
DI 10.1016/j.jmb.2010.11.012
PG 12
WC Biochemistry & Molecular Biology
SC Biochemistry & Molecular Biology
GA 714ZN
UT WOS:000286850300018
PM 21075115
ER
PT J
AU Kheifets, AS
Bray, I
Colgan, J
Pindzola, MS
AF Kheifets, A. S.
Bray, I.
Colgan, J.
Pindzola, M. S.
TI Interference effects in L-shell atomic double photoionization
SO JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS
LA English
DT Article
ID PHOTO DOUBLE-IONIZATION; HELIUM; AMPLITUDES; THRESHOLD
AB Angular correlation pattern in two-electron continuum is very similar in double photoionization (DPI) of a neutral atom gamma + A -> A(2+) + 2e(-) and electron-impact ionization of the corresponding singly charged ion e(-) + A(+) -> A(2+) + 2e(-). This allows us to identify and interpret interference effects in DPI of various L-shell atomic targets such as the metastable He* 1s 2s 1 S and the ground state Li 1s(2)2s and Be 1s(2)2s(2).
C1 [Kheifets, A. S.] Australian Natl Univ, RSPE, Canberra, ACT 0200, Australia.
[Kheifets, A. S.; Bray, I.] Curtin Univ, Inst Theoret Phys, Perth, WA 6845, Australia.
[Colgan, J.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
[Pindzola, M. S.] Auburn Univ, Dept Phys, Auburn, AL 36849 USA.
RP Kheifets, AS (reprint author), Australian Natl Univ, RSPE, Canberra, ACT 0200, Australia.
EM A.Kheifets@anu.edu.au
RI Kheifets, Anatoli/C-9131-2009; Academics, Ampl/B-8685-2012; Bray,
Igor/B-8586-2009;
OI Kheifets, Anatoli/0000-0001-8318-9408; Bray, Igor/0000-0001-7554-8044;
Colgan, James/0000-0003-1045-3858
FU US Department of Energy [DE-AC5206NA25396]; DOE; NSF
FX We thank Tim Reddish and Alain Huetz for critical reading of the
manuscript. The Los Alamos National Laboratory is operated by Los Alamos
National Security, LLC for the National Nuclear Security Administration
of the US Department of Energy under contract no DE-AC5206NA25396. A
portion of this work was performed through DOE and NSF grants to Auburn
University. The computational work was carried out at the National
Institute for Computational Sciences in Oak Ridge, TN, USA. Resources of
the Australian National Computational Infrastructure ( NCI) Facility and
its Western Australian node iVEC are gratefully acknowledged.
NR 19
TC 8
Z9 8
U1 0
U2 2
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 0953-4075
J9 J PHYS B-AT MOL OPT
JI J. Phys. B-At. Mol. Opt. Phys.
PD JAN 14
PY 2011
VL 44
IS 1
AR 011002
DI 10.1088/0953-4075/44/1/011002
PG 6
WC Optics; Physics, Atomic, Molecular & Chemical
SC Optics; Physics
GA 696PT
UT WOS:000285454600002
ER
PT J
AU Chan, KT
Lee, H
Cohen, ML
AF Chan, Kevin T.
Lee, Hoonkyung
Cohen, Marvin L.
TI Gated adatoms on graphene studied with first-principles calculations
SO PHYSICAL REVIEW B
LA English
DT Article
ID ELECTRONIC-STRUCTURE; BILAYER GRAPHENE; BERRYS PHASE; GRAPHITE; GAS;
PSEUDOPOTENTIALS; SPECTROSCOPY; SCATTERING; FORMALISM; FILMS
AB A first-principles pseudopotential density functional method for studying the gating of adatoms on graphene is presented. A variation in gate voltage is assumed to vary the number of electrons in the adatom-graphene system. The method is applied to the cases of Li and Co on graphene. The projected density of states, charge density, and local electrostatic potential are computed as a function of gate voltage. In the case of Li, the calculations show that the Li adatom can be ionized by changing the gate voltage, and that the ionization is accompanied by a sharp change in the electrotstatic potential of the adatom. In the case of Co, correlation in the 3d shell is treated using the LDA+U method, with several values of the U parameter considered. For U = 2 eV or greater, an ionization effect analogous to the case of Li is found for the Co adatom. This result is consistent with recent scanning tunneling spectroscopy experiments for Co on graphene.
C1 [Chan, Kevin T.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA.
RP Chan, KT (reprint author), Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
FU National Science Foundation [DMR07-05941]; Office of Science, Office of
Basic Energy Sciences, Materials Sciences and Engineering Division, US
Department of Energy [DE-AC02-05CH11231]
FX We are grateful to Victor Brar and Regis Decker for useful discussions.
This work was supported by National Science Foundation Grant No.
DMR07-05941 and by the Director, Office of Science, Office of Basic
Energy Sciences, Materials Sciences and Engineering Division, US
Department of Energy under Contract No. DE-AC02-05CH11231. Computational
resources have been provided by DOE at Lawrence Berkeley National
Laboratory's NERSC facility and the Lawrencium computational cluster
resource provided by the IT Division at the Lawrence Berkeley National
Laboratory.
NR 63
TC 38
Z9 38
U1 1
U2 17
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD JAN 14
PY 2011
VL 83
IS 3
AR 035405
DI 10.1103/PhysRevB.83.035405
PG 10
WC Physics, Condensed Matter
SC Physics
GA 713WF
UT WOS:000286767400001
ER
PT J
AU Andresen, GB
Ashkezari, MD
Baquero-Ruiz, M
Bertsche, W
Bowe, PD
Butler, E
Carpenter, PT
Cesar, CL
Chapman, S
Charlton, M
Fajans, J
Friesen, T
Fujiwara, MC
Gill, DR
Hangst, JS
Hardy, WN
Hayden, ME
Humphries, AJ
Hurt, JL
Hydomako, R
Jonsell, S
Madsen, N
Menary, S
Nolan, P
Olchanski, K
Olin, A
Povilus, A
Pusa, P
Robicheaux, F
Sarid, E
Silveira, DM
So, C
Storey, JW
Thompson, RI
van der Werf, DP
Wurtele, JS
Yamazaki, Y
AF Andresen, G. B.
Ashkezari, M. D.
Baquero-Ruiz, M.
Bertsche, W.
Bowe, P. D.
Butler, E.
Carpenter, P. T.
Cesar, C. L.
Chapman, S.
Charlton, M.
Fajans, J.
Friesen, T.
Fujiwara, M. C.
Gill, D. R.
Hangst, J. S.
Hardy, W. N.
Hayden, M. E.
Humphries, A. J.
Hurt, J. L.
Hydomako, R.
Jonsell, S.
Madsen, N.
Menary, S.
Nolan, P.
Olchanski, K.
Olin, A.
Povilus, A.
Pusa, P.
Robicheaux, F.
Sarid, E.
Silveira, D. M.
So, C.
Storey, J. W.
Thompson, R. I.
van der Werf, D. P.
Wurtele, J. S.
Yamazaki, Y.
CA ALPHA Collaboration
TI Autoresonant Excitation of Antiproton Plasmas
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID NONSTATIONARY EXCITATION; ANTIHYDROGEN
AB We demonstrate controllable excitation of the center-of-mass longitudinal motion of a thermal antiproton plasma using a swept-frequency autoresonant drive. When the plasma is cold, dense, and highly collective in nature, we observe that the entire system behaves as a single-particle nonlinear oscillator, as predicted by a recent theory. In contrast, only a fraction of the antiprotons in a warm plasma can be similarly excited. Antihydrogen was produced and trapped by using this technique to drive antiprotons into a positron plasma, thereby initiating atomic recombination.
C1 [Andresen, G. B.; Bowe, P. D.; Hangst, J. S.] Aarhus Univ, Dept Phys & Astron, DK-8000 Aarhus C, Denmark.
[Ashkezari, M. D.; Hayden, M. E.] Simon Fraser Univ, Dept Phys, Burnaby, BC V5A 1S6, Canada.
[Baquero-Ruiz, M.; Chapman, S.; Fajans, J.; Povilus, A.; So, C.; Wurtele, J. S.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
[Bertsche, W.; Butler, E.; Charlton, M.; Humphries, A. J.; Madsen, N.; van der Werf, D. P.] Swansea Univ, Dept Phys, Swansea SA2 8PP, W Glam, Wales.
[Carpenter, P. T.; Hurt, J. L.; Robicheaux, F.] Auburn Univ, Dept Phys, Auburn, AL 36849 USA.
[Cesar, C. L.] Univ Fed Rio de Janeiro, Inst Fis, BR-21941972 Rio De Janeiro, Brazil.
[Friesen, T.; Hydomako, R.; Thompson, R. I.] Univ Calgary, Dept Phys & Astron, Calgary, AB T2N 1N4, Canada.
[Fujiwara, M. C.; Gill, D. R.; Olchanski, K.; Olin, A.; Storey, J. W.] TRIUMF, Vancouver, BC V6T 2A3, Canada.
[Hardy, W. N.] Univ British Columbia, Dept Phys & Astron, Vancouver, BC V6T 1Z4, Canada.
[Jonsell, S.] Stockholm Univ, SE-10691 Stockholm, Sweden.
[Menary, S.] York Univ, Dept Phys & Astron, Toronto, ON M3J 1P3, Canada.
[Nolan, P.; Pusa, P.] Univ Liverpool, Dept Phys, Liverpool L69 7ZE, Merseyside, England.
[Sarid, E.] NRCN, Dept Phys, IL-8190 Beer Sheva, Israel.
[Silveira, D. M.; Yamazaki, Y.] RIKEN, Atom Phys Lab, Saitama 3510198, Japan.
[Wurtele, J. S.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
[Yamazaki, Y.] Univ Tokyo, Grad Sch Arts & Sci, Tokyo 1538902, Japan.
RP Andresen, GB (reprint author), Aarhus Univ, Dept Phys & Astron, DK-8000 Aarhus C, Denmark.
RI Butler, Eoin/G-6413-2011; Bertsche, William/A-3678-2012; Madsen,
Niels/G-3548-2013; 1, INCT/G-5846-2013; Informacao quantica,
Inct/H-9493-2013; Jonsell, Svante/J-2251-2016; wurtele,
Jonathan/J-6278-2016; Fajans, Joel/J-6597-2016; Yamazaki,
Yasunori/N-8018-2015; Robicheaux, Francis/F-4343-2014;
OI Bertsche, William/0000-0002-6565-9282; Madsen,
Niels/0000-0002-7372-0784; Jonsell, Svante/0000-0003-4969-1714; wurtele,
Jonathan/0000-0001-8401-0297; Fajans, Joel/0000-0002-4403-6027;
Yamazaki, Yasunori/0000-0001-5712-0853; van der Werf,
Dirk/0000-0001-5436-5214; Robicheaux, Francis/0000-0002-8054-6040;
Butler, Eoin/0000-0003-0947-7166; Andresen, Gorm
Bruun/0000-0002-4820-020X
FU CNPq; FINEP/RENAFAE (Brazil); ISF (Israel); MEXT (Japan); FNU (Denmark);
VR (Sweden); NSERC; NRC/TRIUMF; AIF; FQRNT (Canada); DOE; NSF (USA);
EPSRC; Royal Society; Leverhulme Trust (UK)
FX This work was supported by CNPq, FINEP/RENAFAE (Brazil), ISF (Israel),
MEXT (Japan), FNU (Denmark), VR (Sweden), NSERC, NRC/TRIUMF, AIF, FQRNT
(Canada), DOE, NSF (USA), and EPSRC, the Royal Society and the
Leverhulme Trust (UK).
NR 18
TC 43
Z9 43
U1 3
U2 15
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD JAN 14
PY 2011
VL 106
IS 2
AR 025002
DI 10.1103/PhysRevLett.106.025002
PG 5
WC Physics, Multidisciplinary
SC Physics
GA 713NE
UT WOS:000286743900006
PM 21405235
ER
PT J
AU Tao, F
Salmeron, M
AF Tao, Franklin (Feng)
Salmeron, Miquel
TI In Situ Studies of Chemistry and Structure of Materials in Reactive
Environments
SO SCIENCE
LA English
DT Review
ID PHOTOELECTRON-SPECTROSCOPY; SURFACES; CATALYST; OXYGEN; MICROSCOPY;
NANOSCALE; REDUCTION; OXIDATION; GROWTH; NANOPARTICLES
AB Most materials and devices typically operate under specific environmental conditions, many of them highly reactive. Heterogeneous catalysts, for example, work under high pressure of reactants or in acidic solutions. The relationship between surface structure and composition of materials during operation and their chemical properties needs to be established in order to understand the mechanisms at work and to enable the design of new and better materials. Although studies of the structure, composition, chemical state, and phase transformation under working conditions are challenging, progress has been made in recent years in the development of new techniques that operate under a variety of realistic environments. With them, new chemistry and new structures of materials that are only present under reaction conditions have been uncovered.
C1 [Tao, Franklin (Feng)] Univ Notre Dame, Dept Chem & Biochem, Notre Dame, IN 46556 USA.
[Salmeron, Miquel] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA.
RP Tao, F (reprint author), Univ Notre Dame, Dept Chem & Biochem, Notre Dame, IN 46556 USA.
EM ftao@nd.edu; mbsalmeron@lbl.gov
FU Office of Basic Energy Sciences, Materials Sciences Division of the U.S.
Department of Energy [DE-AC02-05CH11231]; Department of Chemistry and
Biochemistry, College of Science, Sustainable Energy Initiative,
Radiation Lab, and Office of Research at University of Notre Dame
FX This work was supported by the director, Office of Basic Energy
Sciences, Materials Sciences Division of the U.S. Department of Energy
under contract no. DE-AC02-05CH11231, and Department of Chemistry and
Biochemistry, College of Science, Sustainable Energy Initiative,
Radiation Lab, and Office of Research at University of Notre Dame. F. T.
would like to acknowledge K. Davis of the University of Notre Dame for
assistance with the animation movie.
NR 39
TC 161
Z9 164
U1 18
U2 263
PU AMER ASSOC ADVANCEMENT SCIENCE
PI WASHINGTON
PA 1200 NEW YORK AVE, NW, WASHINGTON, DC 20005 USA
SN 0036-8075
J9 SCIENCE
JI Science
PD JAN 14
PY 2011
VL 331
IS 6014
BP 171
EP 174
DI 10.1126/science.1197461
PG 4
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 709JA
UT WOS:000286433100030
PM 21233377
ER
PT J
AU Jang, J
Ferguson, DG
Vakaryuk, V
Budakian, R
Chung, SB
Goldbart, PM
Maeno, Y
AF Jang, J.
Ferguson, D. G.
Vakaryuk, V.
Budakian, R.
Chung, S. B.
Goldbart, P. M.
Maeno, Y.
TI Observation of Half-Height Magnetization Steps in Sr2RuO4
SO SCIENCE
LA English
DT Article
ID SUPERFLUID HE-3; STATES; SUPERCONDUCTIVITY; SINGULARITIES
AB Spin-triplet superfluids can support exotic objects, such as half-quantum vortices characterized by the nontrivial winding of the spin structure. We present cantilever magnetometry measurements performed on mesoscopic samples of Sr2RuO4, a spin-triplet superconductor. With micrometer-sized annular-shaped samples, we observed transitions between integer fluxoid states as well as a regime characterized by "half-integer transitions"-steps in the magnetization with half the height of the ones we observed between integer fluxoid states. These half-height steps are consistent with the existence of half-quantum vortices in superconducting Sr2RuO4.
C1 [Jang, J.; Ferguson, D. G.; Vakaryuk, V.; Budakian, R.; Goldbart, P. M.] Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
[Vakaryuk, V.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA.
[Chung, S. B.] Stanford Univ, Dept Phys, Stanford, CA 94305 USA.
[Maeno, Y.] Kyoto Univ, Dept Phys, Kyoto 6068502, Japan.
RP Budakian, R (reprint author), Univ Illinois, Dept Phys, 1110 W Green St, Urbana, IL 61801 USA.
EM budakian@illinois.edu
FU U.S. Department of Energy Office of Basic Sciences through the Frederick
Seitz Materials Research Laboratory at the University of Illinois at
Urbana Champaign [DEFG02-07ER46453]; Ministry of Education, Culture,
Sports, Science and Technology of Japan
FX We thank D. Van Harlingen, M. Stone, E. Fradkin, E.-A. Kim, and H. Bluhm
for valuable discussions and M. Ueda for helpful suggestions regarding
the data analysis. In particular, the authors thank A. J. Leggett for
his theoretical guidance. This work was supported by the U.S. Department
of Energy Office of Basic Sciences, grant DEFG02-07ER46453 through the
Frederick Seitz Materials Research Laboratory at the University of
Illinois at Urbana Champaign and the grants-in-aid for the Global
Centers of Excellence "Next Generation of Physics" programs from the
Ministry of Education, Culture, Sports, Science and Technology of Japan.
NR 13
TC 107
Z9 108
U1 6
U2 53
PU AMER ASSOC ADVANCEMENT SCIENCE
PI WASHINGTON
PA 1200 NEW YORK AVE, NW, WASHINGTON, DC 20005 USA
SN 0036-8075
J9 SCIENCE
JI Science
PD JAN 14
PY 2011
VL 331
IS 6014
BP 186
EP 188
DI 10.1126/science.1193839
PG 3
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 709JA
UT WOS:000286433100034
PM 21233380
ER
PT J
AU Gilbert, NC
Bartlett, SG
Waight, MT
Neau, DB
Boeglin, WE
Brash, AR
Newcomer, ME
AF Gilbert, Nathaniel C.
Bartlett, Sue G.
Waight, Maria T.
Neau, David B.
Boeglin, William E.
Brash, Alan R.
Newcomer, Marcia E.
TI The Structure of Human 5-Lipoxygenase
SO SCIENCE
LA English
DT Article
ID PURIFIED HUMAN 5-LIPOXYGENASE; CRYSTAL-STRUCTURE; SOYBEAN
LIPOXYGENASE-1; C2-LIKE DOMAIN; PROTEIN; SPECIFICITY; OXYGENATION;
8R-LIPOXYGENASE; BIOSYNTHESIS; DETERMINANTS
AB The synthesis of both proinflammatory leukotrienes and anti-inflammatory lipoxins requires the enzyme 5-lipoxygenase (5-LOX). 5-LOX activity is short-lived, apparently in part because of an intrinsic instability of the enzyme. We identified a 5-LOX-specific destabilizing sequence that is involved in orienting the carboxyl terminus, which binds the catalytic iron. Here, we report the crystal structure at 2.4 angstrom resolution of human 5-LOX stabilized by replacement of this sequence.
C1 [Gilbert, Nathaniel C.; Bartlett, Sue G.; Waight, Maria T.; Newcomer, Marcia E.] Louisiana State Univ, Dept Biol Sci, Baton Rouge, LA 70803 USA.
[Neau, David B.] Argonne Natl Lab, NE Collaborat Access Team, Argonne, IL 60439 USA.
[Boeglin, William E.; Brash, Alan R.] Vanderbilt Univ, Sch Med, Dept Pharmacol, Nashville, TN 37232 USA.
RP Newcomer, ME (reprint author), Louisiana State Univ, Dept Biol Sci, Baton Rouge, LA 70803 USA.
EM newcomer@lsu.edu
FU American Heart Association [MCB 08553920E]; NSF [0818387]; NIH
[GM-15431]; Louisiana Governors' Biotechnology Initiative
FX This work was funded in part by grants from the American Heart
Association (MCB 08553920E) and NSF (0818387) to M.E.N. and from NIH
(GM-15431) to A. R. B. Preliminary work was performed at the Center for
Advanced Microstructures and Devices (Baton Rouge), funded in part by
the Louisiana Governors' Biotechnology Initiative. X-ray data were
collected at Beam Line 24-ID-E of NE-CAT at the Advanced Photon Source.
Atomic coordinates and structure factors have been deposited in the
Protein Data Bank under accession number 3O8Y. M.E.N., N.C.G., and S. G.
B, have applied for a patent on the modified enzyme (Stable-5-LOX). For
noncommercial use, the construct will be supplied subject to a material
transfer agreement.
NR 29
TC 144
Z9 149
U1 2
U2 40
PU AMER ASSOC ADVANCEMENT SCIENCE
PI WASHINGTON
PA 1200 NEW YORK AVE, NW, WASHINGTON, DC 20005 USA
SN 0036-8075
J9 SCIENCE
JI Science
PD JAN 14
PY 2011
VL 331
IS 6014
BP 217
EP 219
DI 10.1126/science.1197203
PG 3
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 709JA
UT WOS:000286433100043
PM 21233389
ER
PT J
AU Bobela, DC
Taylor, PC
Kuhns, P
Reyes, A
Edwards, A
AF Bobela, David C.
Taylor, P. Craig
Kuhns, Phillip
Reyes, Arneil
Edwards, Arthur
TI Antimony bonding in Ge-Sb-Te phase change materials
SO PHYSICAL REVIEW B
LA English
DT Article
AB The amorphous phase in some technologically important Ge-Sb-Te systems is still not well understood despite many models that exist to explain it. Using nuclear magnetic resonance, we demonstrate that Sb bonding in these systems follows the 8-N rule for chemical bonding in amorphous solids. We find that the Sb atoms preferentially bond to three atoms in a pyramidal configuration analogous to the sites occurring in Sb-S or Sb-Se systems. The data we present should be used as a guide for structural modeling of the amorphous phase.
C1 [Bobela, David C.] Univ Utah, Dept Phys, Salt Lake City, UT 84112 USA.
[Taylor, P. Craig] Colorado Sch Mines, Dept Phys, Golden, CO 80401 USA.
[Kuhns, Phillip; Reyes, Arneil] Natl High Magnet Field Lab, Tallahassee, FL 32310 USA.
[Edwards, Arthur] USAF, Res Lab, RVSE, Kirtland AFB, NM 87117 USA.
RP Bobela, DC (reprint author), Natl Renewable Energy Lab, Golden, CO 80401 USA.
FU Air Force Office of Scientific Research [FA9453-07-1-0202]; National
Science Foundation [DMR 0702351]
FX The authors gratefully acknowledge support from the Air Force Office of
Scientific Research under Grant No. FA9453-07-1-0202 and the National
Science Foundation under Grant No. DMR 0702351.
NR 16
TC 3
Z9 3
U1 0
U2 8
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD JAN 13
PY 2011
VL 83
IS 3
AR 033201
DI 10.1103/PhysRevB.83.033201
PG 4
WC Physics, Condensed Matter
SC Physics
GA 713WB
UT WOS:000286767000001
ER
PT J
AU Kjall, JA
Pollmann, F
Moore, JE
AF Kjaell, Jonas A.
Pollmann, Frank
Moore, Joel E.
TI Bound states and E-8 symmetry effects in perturbed quantum Ising chains
SO PHYSICAL REVIEW B
LA English
DT Article
ID MAGNETIC-FIELD; MATRIX; MODEL; RENORMALIZATION; ENERGY
AB In a recent experiment on CoNb2O6, R. Coldea et al. [Science 83, 177 (2010)] found experimental evidence of the exceptional Lie algebra E-8. The emergence of this symmetry was theoretically predicted long ago for the transverse quantum Ising chain in the presence of a weak longitudinal field. We consider an accurate microscopic model of CoNb2O6 incorporating additional couplings and calculate numerically the dynamical structure function using a recently developed matrix-product-state method. The excitation spectra show bound states characteristic of the weakly broken E-8 symmetry. We compare the observed bound-state signatures in this model to those found in the transverse Ising chain in a longitudinal field and to experimental data.
C1 [Kjaell, Jonas A.; Pollmann, Frank; Moore, Joel E.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
[Kjaell, Jonas A.; Moore, Joel E.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA.
RP Kjall, JA (reprint author), Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
EM jonaskjall@berkeley.edu
RI Pollmann, Frank/L-5378-2013; Moore, Joel/O-4959-2016
OI Moore, Joel/0000-0002-4294-5761
FU DARPA; Knut and Alice Wallenberg Foundation
FX The authors thank R. Coldea for very useful correspondence. This work
was supported by a grant from the Army Research Office with funding from
the DARPA OLE program and by the Knut and Alice Wallenberg Foundation
(J.K.).
NR 22
TC 15
Z9 15
U1 1
U2 13
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
EI 1550-235X
J9 PHYS REV B
JI Phys. Rev. B
PD JAN 13
PY 2011
VL 83
IS 2
AR 020407
DI 10.1103/PhysRevB.83.020407
PG 4
WC Physics, Condensed Matter
SC Physics
GA 713OJ
UT WOS:000286747000002
ER
PT J
AU Zheng, D
Zhang, GM
Xiang, T
Lee, DH
AF Zheng, Dong
Zhang, Guang-Ming
Xiang, Tao
Lee, Dung-Hai
TI Continuous quantum phase transition between two topologically distinct
valence bond solid states associated with the same spin value
SO PHYSICAL REVIEW B
LA English
DT Article
ID GROUND-STATES; ANTIFERROMAGNETS; BREAKING; MODELS; GAP
AB We propose a one-dimensional quantum Heienberg spin-2 chain, which exhibits two topologically distinct valence bond solid states in two different solvable limits. We then construct the phase diagram and study the quantum phase transition between these two states using infinite time evolving block decimation algorithms. From the scaling relation between the entanglement entropy and the correlation length, we determine that the central charge for the underlying critical conformal field theory is around two.
C1 [Zheng, Dong; Zhang, Guang-Ming] Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China.
[Xiang, Tao] Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China.
[Xiang, Tao] Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China.
[Lee, Dung-Hai] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
[Lee, Dung-Hai] Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA.
RP Zheng, D (reprint author), Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China.
FU NSF of China; MOST-China; DOE [DE-AC02-05CH11231]
FX The authors are grateful to Dr. Hong-Hao Tu for stimulating discussions
and earlier collaborations. We acknowledge the support of NSF of China
and the National Program for Basic Research of MOST-China. D. H. L. was
supported by DOE Grant No. DE-AC02-05CH11231.
NR 28
TC 14
Z9 14
U1 0
U2 8
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD JAN 13
PY 2011
VL 83
IS 1
AR 014409
DI 10.1103/PhysRevB.83.014409
PG 7
WC Physics, Condensed Matter
SC Physics
GA 713LD
UT WOS:000286738600003
ER
PT J
AU Hauser, J
Dyer, KM
Pasyanos, ME
Bungum, H
Faleide, JI
Clark, SA
Schweitzer, J
AF Hauser, Juerg
Dyer, Kathleen M.
Pasyanos, Michael E.
Bungum, Hilmar
Faleide, Jan I.
Clark, Stephen A.
Schweitzer, Johannes
TI A probabilistic seismic model for the European Arctic
SO JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
LA English
DT Article
ID BARENTS SEA REGION; UPPER-MANTLE; EARTHQUAKE LOCATION; VELOCITY
STRUCTURE; CONTINENTAL-CRUST; INVERSE PROBLEMS; TRAVEL-TIMES; SVALBARD;
GRAVITY; TOMOGRAPHY
AB The development of three-dimensional seismic models for the crust and upper mantle has traditionally focused on finding one model that provides the best fit to the data while observing some regularization constraints. In contrast to this, the inversion employed here fits the data in a probabilistic sense and thus provides a quantitative measure of model uncertainty. Our probabilistic model is based on two sources of information: (1) prior information, which is independent from the data, and (2) different geophysical data sets, including thickness constraints, velocity profiles, gravity data, surface wave group velocities, and regional body wave traveltimes. We use a Markov chain Monte Carlo (MCMC) algorithm to sample models from the prior distribution, the set of plausible models, and test them against the data to generate the posterior distribution, the ensemble of models that fit the data with assigned uncertainties. While being computationally more expensive, such a probabilistic inversion provides a more complete picture of solution space and allows us to combine various data sets. The complex geology of the European Arctic, encompassing oceanic crust, continental shelf regions, rift basins and old cratonic crust, as well as the nonuniform coverage of the region by data with varying degrees of uncertainty, makes it a challenging setting for any imaging technique and, therefore, an ideal environment for demonstrating the practical advantages of a probabilistic approach. Maps of depth to basement and depth to Moho derived from the posterior distribution are in good agreement with previously published maps and interpretations of the regional tectonic setting. The predicted uncertainties, which are as important as the absolute values, correlate well with the variations in data coverage and quality in the region. A practical advantage of our probabilistic model is that it can provide estimates for the uncertainties of observables due to model uncertainties. We will demonstrate how this can be used for the formulation of earthquake location algorithms that take model uncertainties into account when estimating location uncertainties.
C1 [Hauser, Juerg; Bungum, Hilmar; Schweitzer, Johannes] NORSAR, N-2027 Kjeller, Norway.
[Dyer, Kathleen M.; Pasyanos, Michael E.] Lawrence Livermore Natl Lab, Livermore, CA USA.
[Faleide, Jan I.; Clark, Stephen A.] Univ Oslo, Dept Geosci, Oslo, Norway.
RP Hauser, J (reprint author), NORSAR, POB 53, N-2027 Kjeller, Norway.
EM juerg@norsar.no
RI Pasyanos, Michael/C-3125-2013; Hauser, Juerg/B-7368-2014
FU U.S. Department of Energy by Lawrence Livermore National Laboratory
[DE-AC52-07NA27344]
FX This work was performed under the auspices of the U.S. Department of
Energy by Lawrence Livermore National Laboratory under contract
DE-AC52-07NA27344. This is LLNL contribution LLNL-JRNL-438574. Stephen
Myers (LLNL) contributed the ground truth data. We thank The Norwegian
Metacenter for Computational Science (NOTUR) for providing the necessary
computational resources on the Titan III high-performance computing
facilities. Figures were generated using the Generic Mapping Tools (GMT)
software [Wessel and Smith, 1998]. The Geological Survey of Norway (NGU)
is thanked for providing the depth to Moho and depth to basement data
shown in Figures 7d and 8d. We thank Anatoli Levshin and Christian
Weidle for providing us the phase readings and group velocity maps
published by Levshin et al. [2007].
NR 58
TC 11
Z9 11
U1 0
U2 5
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 2169-9313
EI 2169-9356
J9 J GEOPHYS RES-SOL EA
JI J. Geophys. Res.-Solid Earth
PD JAN 13
PY 2011
VL 116
AR B01303
DI 10.1029/2010JB007889
PG 17
WC Geochemistry & Geophysics
SC Geochemistry & Geophysics
GA 707YI
UT WOS:000286327000001
ER
PT J
AU Donald, WA
Leib, RD
Demireva, M
Negru, B
Neumark, DM
Williams, ER
AF Donald, William A.
Leib, Ryan D.
Demireva, Maria
Negru, Bogdan
Neumark, Daniel M.
Williams, Evan R.
TI Average Sequential Water Molecule Binding Enthalpies of
M(H2O)(19-124)(2+) (M = Co, Fe, Mn, and Cu) Measured with Ultraviolet
Photodissociation at 193 and 248 nm
SO JOURNAL OF PHYSICAL CHEMISTRY A
LA English
DT Article
ID INFRARED RADIATIVE DISSOCIATION; COLLISION-INDUCED DISSOCIATION;
HYDRATED ION NANOCALORIMETRY; TRIVALENT METAL-IONS; LIQUID-DROP MODEL;
GAS-PHASE; ELECTRON-CAPTURE; MASS-SPECTROMETRY; CLUSTER ANIONS; THOMSON
EQUATION
AB The average sequential water molecule binding enthalpies to large water clusters (between 19 and 124 water molecules) containing divalent ions were obtained by measuring the average number of water molecules lost upon absorption of an UV photon (193 or 248 nm) and using a statistical model to account for the energy released into translations, rotations, and vibrations of the products. These values agree well with the trend established by more conventional methods for obtaining sequential binding enthalpies to much smaller hydrated divalent ions. The average binding enthalpies decrease to a value of similar to 10.4 kcal/mol for n > similar to 40 and are insensitive to the ion identity at large cluster size. This value is close to that of the bulk heat of vaporization of water (10.6 kcal/mol) and indicates that the structure of water in these clusters may more closely resemble that of bulk liquid water than ice, owing either to a freezing point depression or rapid evaporative cooling and kinetic trapping of the initial liquid droplet. A discrete implementation of the Thomson equation using parameters for liquid water at 0 degrees C generally fits the trend in these data but provides values that are similar to 0.5 kcal/mol too low.
C1 [Donald, William A.; Leib, Ryan D.; Demireva, Maria; Negru, Bogdan; Neumark, Daniel M.; Williams, Evan R.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.
[Negru, Bogdan; Neumark, Daniel M.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Chem Sci, Berkeley, CA 94720 USA.
RP Williams, ER (reprint author), Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.
EM Williams@cchem.berkeley.edu
RI Neumark, Daniel/B-9551-2009; Williams, Evan/I-3924-2013
OI Neumark, Daniel/0000-0002-3762-9473;
FU American Chemical Society [47916-AC6]; National Science Foundation
[CHE-0718790, CHE-1012833]; Office of Basic Energy Sciences, Chemical
Sciences Division of the U.S. Department of Energy [DE-AC02-05CH11231]
FX Acknowledgment is made to the donors of the American Chemical Society
Petroleum Research Fund (47916-AC6) for support of this research. The
authors thank the National Science Foundation (CHE-0718790 and
CHE-1012833) for generous financial support. B.N. and D.M.N. acknowledge
support from the Director, Office of Basic Energy Sciences, Chemical
Sciences Division of the U.S. Department of Energy under Contract No.
DE-AC02-05CH11231.
NR 66
TC 22
Z9 22
U1 0
U2 18
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1089-5639
J9 J PHYS CHEM A
JI J. Phys. Chem. A
PD JAN 13
PY 2011
VL 115
IS 1
BP 2
EP 12
DI 10.1021/jp107547r
PG 11
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA 701LD
UT WOS:000285818500002
PM 21142113
ER
PT J
AU Shu, DJ
Xiong, X
Wang, ZW
Zhang, ZY
Wang, M
Ming, NB
AF Shu, Da-Jun
Xiong, Xiang
Wang, Zhao-Wu
Zhang, Zhenyu
Wang, Mu
Ming, Nai-Ben
TI Atomistic Mechanisms and Diameter Selection during Nanorod Growth
SO JOURNAL OF PHYSICAL CHEMISTRY C
LA English
DT Article
ID THIN-FILM GROWTH; ZNO NANOSTRUCTURES; DEPOSITION; NUCLEATION; ARRAYS;
SIZE
AB We study in this paper the atomic mechanisms of nanorod growth and propose the mechanism of diameter selection of nanorods. A characteristic radius is demonstrated to be crucial in nanorod growth. If the critical size of the two-dimensional nucleus is assumed to be 1, the characteristic radius increases proportional to 1/5 power of the ratio of the interlayer hopping rate of adatoms across the monolayer steps to the deposition rate. When the radius of the initial island is larger than this characteristic radius, a screening effect is important for nanorod growth. The growth morphology evolves from a taper-like structure to a nanorod with a radius equal to the characteristic radius after some transient layers, depending on the screening strength. When the radius of the initial island is smaller than this characteristic radius, the nanorod morphology can be maintained during the growth, with the stable radius being limited by both the radius of the initial island and the three-dimensional Ehrlich-Schwoebel barrier. Therefore, different growth modes and the diameter of nanorod can be selected by changing the characteristic radius, via controlling the growth condition. The theoretical predictions are in good agreement with experimental observations of ZnO growth.
C1 [Shu, Da-Jun; Xiong, Xiang; Wang, Zhao-Wu; Wang, Mu; Ming, Nai-Ben] Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China.
[Shu, Da-Jun; Xiong, Xiang; Wang, Zhao-Wu; Wang, Mu; Ming, Nai-Ben] Nanjing Univ, Dept Phys, Nanjing 210093, Peoples R China.
[Zhang, Zhenyu] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA.
[Zhang, Zhenyu] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA.
RP Shu, DJ (reprint author), Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China.
EM djshu@nju.edu.cn; muwang@nju.edu.cn
FU NSF of China [10974079, 10874068, 11034005, 50972057]; Jiangsu Province
[BK2008012]; MOST of China [2010CB630705]; DOE of China [NCET-09-0461];
U.S. DOE (Division of Materials Sciences and Engineering, Office of
Basic Energy Sciences) [DE-FG02-05ER46209]; U.S. NSF [DMR-0906025]
FX This work was supported by the NSF of China (10974079, 10874068,
11034005 and 50972057) and the Jiangsu Province (BK2008012), MOST of
China (2010CB630705), and the DOE of China (NCET-09-0461). Z.Z.
acknowledges partial support by the U.S. DOE (Grant No.
DE-FG02-05ER46209, the Division of Materials Sciences and Engineering,
Office of Basic Energy Sciences) and U.S. NSF Grant No. DMR-0906025.
NR 32
TC 8
Z9 8
U1 3
U2 18
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1932-7447
J9 J PHYS CHEM C
JI J. Phys. Chem. C
PD JAN 13
PY 2011
VL 115
IS 1
BP 31
EP 36
DI 10.1021/jp1060528
PG 6
WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science,
Multidisciplinary
SC Chemistry; Science & Technology - Other Topics; Materials Science
GA 701LA
UT WOS:000285818200006
ER
PT J
AU Petrik, NG
Kimmel, GA
AF Petrik, Nikolay G.
Kimmel, Greg A.
TI Electron- and Hole-Mediated Reactions in UV-Irradiated O-2 Adsorbed on
Reduced Rutile TiO2(110)
SO JOURNAL OF PHYSICAL CHEMISTRY C
LA English
DT Article
ID MOLECULAR-OXYGEN; SURFACE-CHEMISTRY; CHARGE-TRANSFER; DOMINANT ROLE;
WATER FILMS; DISSOCIATION; TIO2; PHOTODESORPTION; ADSORPTION; SITES
AB The ultraviolet (UV) photon-stimulated reactions in oxygen adsorbed on reduced TiO2(110) at low temperatures (<100 K) are studied. When a single O-2 is chemisorbed in each bridging oxygen vacancy, only similar to 14% of the O-2 desorbs after prolonged UV irradiation. For the remaining O-2 on the surface after irradiation, about one-half dissociates, and the other one-half is left in a nondissociated state that is inactive for hole-mediated photodesorption. For the maximum coverage of chemisorbed oxygen, the fraction of O-2 that photodesorbs increases substantially, but is still only similar to 40%. However, when physisorbed oxygen is also present, similar to 70% of the initially chemisorbed O-2 photodesorbs. On the basis of the experimental results, we propose that both hole- and electron-mediated reactions with O-2 chemisorbed on TiO2(110) are important. Hole-mediated reactions lead to O-2 photodesorption, while electron-mediated reactions lead to O-2 dissociation. The electron-mediated reactions explain the low total photodesorption yield when no physisorbed O-2 is present. For a fixed amount of chemisorbed O-18(2), its PSD yield increases substantially if O-16(2) is subsequently chemisorbed, indicating that the hole-mediated O-2 photodesorption probability depends on the charge state of the chemisorbed O-2; it decreases for more negatively charged O-2. Because the charge state of the chemisorbed O-2 depends on the total oxygen coverage, the coverage influences the photodesorption process. A simple model based on the oxygen coverage and the charge of the chemisorbed oxygen, which accounts for the observations, is presented. In the model, O-2 chemisorbs as either O-2(-) or O-2(2-) depending on the oxygen coverage. O-2(-) (O-2(2-)) reacting with a hole leads to O-2(0) desorption with a high (low) probability. O-2(2-) plus an electron typically leads to O-2 dissociation, while O-2(-) + e(-) does not lead to dissociation.
C1 [Petrik, Nikolay G.; Kimmel, Greg A.] Pacific NW Natl Lab, Chem & Mat Sci Div, Richland, WA 99352 USA.
RP Kimmel, GA (reprint author), Pacific NW Natl Lab, Chem & Mat Sci Div, Richland, WA 99352 USA.
EM gregory.kimmel@pnl.gov
RI Petrik, Nikolay/G-3267-2015;
OI Petrik, Nikolay/0000-0001-7129-0752; Kimmel, Greg/0000-0003-4447-2440
FU U.S. Department of Energy (DOE), Office of Basic Energy Sciences,
Chemical Sciences, Geosciences and Biosciences Division; DOE, Office of
Biological and Environmental Research at Pacific Northwest National
Laboratory [DE-AC06-76RLO 1830]
FX This work was supported by the U.S. Department of Energy (DOE), Office
of Basic Energy Sciences, Chemical Sciences, Geosciences and Biosciences
Division. The work was performed at the W. R. Wiley Environmental
Molecular Sciences Laboratory, a national scientific user facility
sponsored by DOE, Office of Biological and Environmental Research and
located at Pacific Northwest National Laboratory, which is operated for
DOE by Battelle Memorial Institute under contract DE-AC06-76RLO 1830.
NR 43
TC 31
Z9 31
U1 1
U2 22
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1932-7447
J9 J PHYS CHEM C
JI J. Phys. Chem. C
PD JAN 13
PY 2011
VL 115
IS 1
BP 152
EP 164
DI 10.1021/jp108909p
PG 13
WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science,
Multidisciplinary
SC Chemistry; Science & Technology - Other Topics; Materials Science
GA 701LA
UT WOS:000285818200023
ER
PT J
AU Gilbert, J
O'Dor, R
Vogel, T
AF Gilbert, Jack
O'Dor, Ronald
Vogel, Timothy
TI Survey data are still vital to science
SO NATURE
LA English
DT Letter
C1 [Gilbert, Jack] Argonne Natl Lab, Argonne, IL 60439 USA.
[O'Dor, Ronald] Dalhousie Univ, Halifax, NS B3H 3J5, Canada.
[Vogel, Timothy] Univ Lyons, Lyon, France.
RP Gilbert, J (reprint author), Argonne Natl Lab, Argonne, IL 60439 USA.
EM gilbertjack@gmail.com
NR 1
TC 2
Z9 2
U1 1
U2 11
PU NATURE PUBLISHING GROUP
PI LONDON
PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND
SN 0028-0836
J9 NATURE
JI Nature
PD JAN 13
PY 2011
VL 469
IS 7329
BP 162
EP 162
DI 10.1038/469162a
PG 1
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 705NO
UT WOS:000286143400018
PM 21228857
ER
PT J
AU Dagotto, E
AF Dagotto, Elbio
TI CONDENSED-MATTER PHYSICS The conducting face of an insulator
SO NATURE
LA English
DT Editorial Material
ID INTERFACES
C1 [Dagotto, Elbio] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA.
[Dagotto, Elbio] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN USA.
RP Dagotto, E (reprint author), Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA.
EM edagotto@utk.edu
NR 8
TC 6
Z9 6
U1 1
U2 18
PU NATURE PUBLISHING GROUP
PI LONDON
PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND
SN 0028-0836
J9 NATURE
JI Nature
PD JAN 13
PY 2011
VL 469
IS 7329
BP 167
EP 168
DI 10.1038/469167a
PG 2
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 705NO
UT WOS:000286143400025
PM 21228864
ER
PT J
AU Santander-Syro, AF
Copie, O
Kondo, T
Fortuna, F
Pailhes, S
Weht, R
Qiu, XG
Bertran, F
Nicolaou, A
Taleb-Ibrahimi, A
Le Fevre, P
Herranz, G
Bibes, M
Reyren, N
Apertet, Y
Lecoeur, P
Barthelemy, A
Rozenberg, MJ
AF Santander-Syro, A. F.
Copie, O.
Kondo, T.
Fortuna, F.
Pailhes, S.
Weht, R.
Qiu, X. G.
Bertran, F.
Nicolaou, A.
Taleb-Ibrahimi, A.
Le Fevre, P.
Herranz, G.
Bibes, M.
Reyren, N.
Apertet, Y.
Lecoeur, P.
Barthelemy, A.
Rozenberg, M. J.
TI Two-dimensional electron gas with universal subbands at the surface of
SrTiO3
SO NATURE
LA English
DT Article
ID STRONTIUM TITANATE; INSULATOR; HETEROSTRUCTURES; TEMPERATURE;
TRANSITION; INTERFACE; OXIDES; BANDS
AB As silicon is the basis of conventional electronics, so strontium titanate (SrTiO3) is the foundation of the emerging field of oxide electronics(1,2). SrTiO3 is the preferred template for the creation of exotic, two-dimensional (2D) phases of electron matter at oxide interfaces(3-5) that have metal-insulator transitions(6,7), superconductivity(8,9) or large negative magnetoresistance(10). However, the physical nature of the electronic structure underlying these 2D electron gases (2DEGs), which is crucial to understanding their remarkable properties(11,12), remains elusive. Here we show, using angle-resolved photoemission spectroscopy, that there is a highly metallic universal 2DEG at the vacuum-cleaved surface of SrTiO3 (including the non-doped insulating material) independently of bulk carrier densities over more than seven decades. This 2DEG is confined within a region of about five unit cells and has a sheet carrier density of similar to 0.33 electrons per square lattice parameter. The electronic structure consists of multiple subbands of heavy and light electrons. The similarity of this 2DEG to those reported in SrTiO3-based heterostructures(6,8,13) and field-effect transistors(9,14) suggests that different forms of electron confinement at the surface of SrTiO3 lead to essentially the same 2DEG. Our discovery provides a model system for the study of the electronic structure of 2DEGs in SrTiO3-based devices and a novel means of generating 2DEGs at the surfaces of transition-metal oxides.
C1 [Santander-Syro, A. F.; Fortuna, F.] CNRS, IN2P3, CSNSM, F-91405 Orsay, France.
[Apertet, Y.; Lecoeur, P.] Univ Paris 11, Inst Elect Fondamentale, F-91405 Orsay, France.
[Santander-Syro, A. F.] UPMC, CNRS, ESPCI, Lab Phys & Etud Mat,UMR 8213, F-75231 Paris 5, France.
[Copie, O.; Bibes, M.; Reyren, N.; Barthelemy, A.] Unite Mixte Phys CNRS Thales, F-91767 Palaiseau, France.
[Copie, O.] Univ Wurzburg, D-97074 Wurzburg, Germany.
[Kondo, T.] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA.
[Kondo, T.] Iowa State Univ, Ames Lab, Ames, IA 50011 USA.
[Pailhes, S.] CEA Saclay, CNRS, CEA, Lab Leon Brillouin, F-91191 Gif Sur Yvette, France.
[Weht, R.] Univ Nacl San Martin, Inst Sabato, CNEA, RA-1650 San Martin, Argentina.
[Qiu, X. G.] Chinese Acad Sci, Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China.
[Qiu, X. G.] Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China.
[Bertran, F.; Nicolaou, A.; Taleb-Ibrahimi, A.; Le Fevre, P.] CEA, CNRS, Synchrotron SOLEIL, F-91192 Gif Sur Yvette, France.
[Herranz, G.] ICMAB CSIC, Inst Ciencia Mat Barcelona, Bellaterra 08193, Catalonia, Spain.
[Rozenberg, M. J.] Univ Paris 11, Phys Solides Lab, F-91405 Orsay, France.
[Rozenberg, M. J.] Univ Buenos Aires, Fac Ciencias Exactas & Nat, Dept Fis, RA-1428 Buenos Aires, DF, Argentina.
RP Santander-Syro, AF (reprint author), CNRS, IN2P3, CSNSM, Batiment 104 & 108, F-91405 Orsay, France.
EM andres.santander@csnsm.in2p3.fr
RI BERTRAN, Francois/B-7515-2008; Santander-Syro, Andres/D-7017-2012;
Bibes, Manuel/C-5899-2013; Herranz, Gervasi/G-2770-2014; Copie,
Olivier/N-1398-2014; Kondo, Takeshi/H-2680-2016;
OI BERTRAN, Francois/0000-0002-2416-0514; Santander-Syro,
Andres/0000-0003-3966-2485; Bibes, Manuel/0000-0002-6704-3422; Herranz,
Gervasi/0000-0003-4633-4367; Copie, Olivier/0000-0002-4261-433X; Reyren,
Nicolas/0000-0002-7745-7282
FU ANR OXITRONICS; CNRS-CSIC [PICS2008FR1]; National Science Foundation
[DMR-0537588]; US DOE [W-7405-ENG-82]; CONICET [PIP 112-200801-00047];
ANPCyT [PICT 837/07]; MOST and NSF of China; Spanish Government
[MAT2008-06761-C03, NANOSELECT CSD2007-00041]
FX We are grateful to N. Bontemps, R. Claessen, Y. Fagot-Revurat, M. Gabay,
I. C. Infante, D. Malterre, A. J. Millis and F. Reinert for discussions,
to E. Jacquet for help with the sample preparation and to R. Guerrero
for help with the transport measurements. This work was supported by the
ANR OXITRONICS and the CNRS-CSIC PICS 'POSTIT' project under grant
number PICS2008FR1. The Synchrotron Radiation Center, University of
Wisconsin-Madison, is supported by the National Science Foundation under
award no. DMR-0537588. The Ames Laboratory is operated for the US DOE by
Iowa State University under contract number W-7405-ENG-82. R. W. is a
research fellow of CONICET-Argentina, supported by CONICET (grant PIP
112-200801-00047) and ANPCyT grant PICT 837/07. X. G. Q. is supported by
the MOST and NSF of China, and G. H. is supported by the Spanish
Government under project numbers MAT2008-06761-C03 and NANOSELECT
CSD2007-00041.
NR 30
TC 299
Z9 299
U1 22
U2 264
PU NATURE PUBLISHING GROUP
PI LONDON
PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND
SN 0028-0836
J9 NATURE
JI Nature
PD JAN 13
PY 2011
VL 469
IS 7329
BP 189
EP 193
DI 10.1038/nature09720
PG 5
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 705NO
UT WOS:000286143400033
PM 21228872
ER
PT J
AU Abuin, L
Bargeton, B
Ulbrich, MH
Isacoff, EY
Kellenberger, S
Benton, R
AF Abuin, Liliane
Bargeton, Benoite
Ulbrich, Maximilian H.
Isacoff, Ehud Y.
Kellenberger, Stephan
Benton, Richard
TI Functional Architecture of Olfactory Ionotropic Glutamate Receptors
SO NEURON
LA English
DT Article
ID DROSOPHILA ODORANT RECEPTORS; PROTEIN-COUPLED RECEPTORS; LIGAND-BINDING
CORE; GATED ION CHANNELS; FINE-STRUCTURE; MOLECULAR DETERMINANTS;
CHEMOSENSORY RECEPTORS; EXPRESSION; KAINATE; AMPA
AB Ionotropic glutamate receptors (iGluRs) are ligand-gated ion channels that mediate chemical communication between neurons at synapses. A variant iGluR subfamily, the Ionotropic Receptors (IRs), was recently proposed to detect environmental volatile chemicals in olfactory cilia. Here, we elucidate how these peripheral chemosensors have evolved mechanistically from their iGluR ancestors. Using a Drosophila model, we demonstrate that IRs act in combinations of up to three subunits, comprising individual odor-specific receptors and one or two broadly expressed coreceptors. Heteromeric IR complex formation is necessary and sufficient for trafficking to cilia and mediating odor-evoked electrophysiological responses in vivo and in vitro. IRs display heterogeneous ion conduction specificities related to their variable pore sequences, and divergent ligand-binding domains function in odor recognition and cilia localization. Our results provide insights into the conserved and distinct architecture of these olfactory and synaptic ion channels and offer perspectives into the use of IRs as genetically encoded chemical sensors.
C1 [Abuin, Liliane; Benton, Richard] Univ Lausanne, Ctr Integrat Genom, CH-1015 Lausanne, Switzerland.
[Bargeton, Benoite; Kellenberger, Stephan] Univ Lausanne, Dept Pharmacol & Toxicol, CH-1005 Lausanne, Switzerland.
[Ulbrich, Maximilian H.; Isacoff, Ehud Y.] Univ Calif Berkeley, Dept Mol & Cell Biol, Berkeley, CA 94720 USA.
[Ulbrich, Maximilian H.; Isacoff, Ehud Y.] Univ Calif Berkeley, Helen Wills Neurosci Inst, Berkeley, CA 94720 USA.
[Isacoff, Ehud Y.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Phys Biosci, Berkeley, CA 94720 USA.
RP Benton, R (reprint author), Univ Lausanne, Ctr Integrat Genom, CH-1015 Lausanne, Switzerland.
EM richard.benton@unil.ch
FU Swiss National Science Foundation [31003A-117717]; NIH [R01NS035549];
NSF [FIBR 0623527]; European Research Council
FX We thank Yael Grosjean for sharing the IR84a mutant prior to
publication, Raphael Rytz for generating the tree in Figure 1A, and
Michael Saina for analyzing IR8a expression in axon termini. We
acknowledge Kazushige Touhara for use of pXpress, Roger Tsien for use of
mCherry, the Bloomington Stock Center for Drosophila strains, and the
Developmental Studies Hybridoma Bank for monoclonal antibodies. We are
grateful to Sophie Martin, Chun Tang, and members of the Benton group
for discussions and comments on the manuscript. Research in S.K.'s
laboratory is supported by the Swiss National Science Foundation
(31003A-117717). Research in E.Y.I.'s laboratory is supported by the NIH
(R01NS035549) and NSF (FIBR 0623527). This work was funded by a European
Research Council Starting Independent Researcher Grant to R.B.
NR 67
TC 146
Z9 147
U1 3
U2 49
PU CELL PRESS
PI CAMBRIDGE
PA 600 TECHNOLOGY SQUARE, 5TH FLOOR, CAMBRIDGE, MA 02139 USA
SN 0896-6273
EI 1097-4199
J9 NEURON
JI Neuron
PD JAN 13
PY 2011
VL 69
IS 1
BP 44
EP 60
DI 10.1016/j.neuron.2010.11.042
PG 17
WC Neurosciences
SC Neurosciences & Neurology
GA 709NB
UT WOS:000286446300007
PM 21220098
ER
PT J
AU Koyalchenko, AM
Elam, JW
Erdemir, A
Carlisle, JA
Auciello, O
Libera, JA
Pellin, MJ
Gruen, DM
Hryn, JN
AF Koyalchenko, A. M.
Elam, J. W.
Erdemir, A.
Carlisle, J. A.
Auciello, O.
Libera, J. A.
Pellin, M. J.
Gruen, D. M.
Hryn, J. N.
TI Development of ultrananocrystalline diamond (UNCD) coatings for
multipurpose mechanical pump seals
SO WEAR
LA English
DT Article
DE CVD coatings; Ultrananocrystalline diamond; Seals; Wear testing;
Electron microscopy; Profilometry
ID FILMS; INTERFACE
AB The reliability and performance of silicon carbide (SiC) shaft seals on multipurpose mechanical pumps are improved by applying a protective coating of ultrananocrystalline diamond (UNCD). UNCD exhibits extreme hardness (97 GPa), low friction (0.1 in air) and outstanding chemical resistance. Consequently, the application of UNCD coatings to multipurpose mechanical pump seals can reduce frictional energy losses and eliminate the downtime and hazardous emissions from seal failure and leakage. In this study, UNCD films were prepared by microwave plasma chemical vapor deposition utilizing an argon/methane gas mixture. Prior to coating, the SiC seals were subjected to mechanical polishing using different grades of micron-sized diamond powder to produce different starting surfaces with well-controlled surface roughnesses. Following this roughening process, the seals were seeded by mechanical abrasion with diamond nanopowder, and subsequently coated with UNCD. The coated seals were subjected to dynamic wear testing performed at 3600 RPM and 100 psi for up to 10 days during which the seals were periodically removed and inspected. The UNCD-coated seals were examined using Raman microanalysis, scanning electron microscopy, optical profilometry, and adhesion testing before and after the wear testing. These analyses revealed that delamination of the UNCD films was prevented when the initial SiC seal surface had an initial roughness >0.1 mu m. In addition, the UNCD surfaces showed no measurable wear as compared to approximately 0.2 mu m of wear for the untreated SiC surfaces. (C) 2010 Elsevier B.V. All rights reserved.
C1 [Koyalchenko, A. M.] Georgia Inst Technol, Mfg Res Ctr, Atlanta, GA 30332 USA.
[Elam, J. W.; Erdemir, A.; Carlisle, J. A.; Auciello, O.; Libera, J. A.; Pellin, M. J.; Gruen, D. M.; Hryn, J. N.] Argonne Natl Lab, Argonne, IL 60439 USA.
RP Koyalchenko, AM (reprint author), Georgia Inst Technol, Mfg Res Ctr, 813 Ferst Dr NW, Atlanta, GA 30332 USA.
EM andrii.kovalchenko@gatech.edu
RI Pellin, Michael/B-5897-2008
OI Pellin, Michael/0000-0002-8149-9768
FU U.S. Department of Energy, BES-Materials Sciences [W-31-109-ENG-38];
U.S. Department of Energy [DE-AC02-06CH11357]; U.S. Department of Energy
Office of Science Laboratory [DE-AC02-06CH11357]
FX This work was supported by the U.S. Department of Energy, BES-Materials
Sciences under Contract W-31-109-ENG-38. Funding for this work was
supported by the U.S. Department of Energy, Assistant Secretary for
Energy Efficiency and Renewable Energy, Industrial Technologies Program,
under contract DE-AC02-06CH11357. Electron microscopy was performed at
the Electron Microscopy Center for Materials Research at Argonne
National Laboratory, a U.S. Department of Energy Office of Science
Laboratory operated under Contract No. DE-AC02-06CH11357 by UChicago
Argonne, LLC. The authors are grateful to the Flowserve Corporation for
providing the SiC seals used in this study.
NR 8
TC 12
Z9 12
U1 2
U2 16
PU ELSEVIER SCIENCE SA
PI LAUSANNE
PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND
SN 0043-1648
J9 WEAR
JI Wear
PD JAN 12
PY 2011
VL 270
IS 3-4
BP 325
EP 331
DI 10.1016/j.wear.2010.10.059
PG 7
WC Engineering, Mechanical; Materials Science, Multidisciplinary
SC Engineering; Materials Science
GA 713ET
UT WOS:000286718500024
ER
PT J
AU Jones, RE
Zimmerman, JA
Oswald, J
Belytschko, T
AF Jones, R. E.
Zimmerman, J. A.
Oswald, J.
Belytschko, T.
TI An atomistic J-integral at finite temperature based on Hardy estimates
of continuum fields
SO JOURNAL OF PHYSICS-CONDENSED MATTER
LA English
DT Article
ID MOLECULAR-DYNAMICS SIMULATIONS; FREE-ENERGY-MINIMIZATION; DEFECT
PROPERTIES; SHOCK-WAVES; SOLIDS; FRACTURE; CRYSTALS; METALS
AB In this work we apply a material-frame, kernel-based estimator of continuum fields to atomic data in order to estimate the J-integral for the analysis of an atomically sharp crack at finite temperatures. Instead of the potential energy appropriate for zero temperature calculations, we employ the quasi-harmonic free energy as an estimator of the Helmholtz free energy required by the Eshelby stress in isothermal conditions. We employ the simplest of the quasi-harmonic models, the local harmonic model of LeSar and co-workers, and verify that it is adequate for correction of the zero temperature J-integral expression for various deformation states for our Lennard-Jones test material. We show that this method has the properties of: consistency among the energy, stress and deformation fields; path independence of the contour integrals of the Eshelby stress; and excellent correlation with linear elastic fracture mechanics theory.
C1 [Jones, R. E.; Zimmerman, J. A.] Sandia Natl Labs, Livermore, CA 94551 USA.
[Oswald, J.; Belytschko, T.] Northwestern Univ, Evanston, IL 60208 USA.
RP Jones, RE (reprint author), Sandia Natl Labs, Livermore, CA 94551 USA.
EM rjones@sandia.gov
RI Belytschko, Ted/B-6710-2009; Zimmerman, Jonathan/A-8019-2012; Oswald,
Jay/M-9609-2013
OI Oswald, Jay/0000-0001-9902-8043
FU United States Department of Energy's National Nuclear Security
Administration [DE-AC04-94AL85000]
FX Sandia is a multi-program laboratory operated by Sandia Corporation, a
Lockheed Martin Company, for the United States Department of Energy's
National Nuclear Security Administration under contract
DE-AC04-94AL85000.
NR 49
TC 6
Z9 6
U1 0
U2 12
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 0953-8984
J9 J PHYS-CONDENS MAT
JI J. Phys.-Condes. Matter
PD JAN 12
PY 2011
VL 23
IS 1
AR 015002
DI 10.1088/0953-8984/23/1/015002
PG 12
WC Physics, Condensed Matter
SC Physics
GA 690KJ
UT WOS:000285003400004
PM 21406817
ER
PT J
AU Meek, ST
Greathouse, JA
Allendorf, MD
AF Meek, Scott T.
Greathouse, Jeffery A.
Allendorf, Mark D.
TI Metal-Organic Frameworks: A Rapidly Growing Class of Versatile
Nanoporous Materials
SO ADVANCED MATERIALS
LA English
DT Review
ID POROUS COORDINATION POLYMERS; MOLECULAR SIMULATION; HYDROGEN STORAGE;
XYLENE ISOMERS; DRUG-DELIVERY; FORCE-FIELD; INDUSTRIAL APPLICATIONS;
SOLVOTHERMAL SYNTHESIS; HYDROTHERMAL SYNTHESIS; ELECTRONIC-STRUCTURE
AB Metal-organic frameworks (MOFs) represent a new class of hybrid organic-inorganic supramolecular materials comprised of ordered networks formed from organic electron donor linkers and metal cations. They can exhibit extremely high surface areas, as well as tunable pore size and functionality, and can act as hosts for a variety of guest molecules. Since their discovery, MOFs have enjoyed extensive exploration, with applications ranging from gas storage to drug delivery to sensing. This review covers advances in the MOF field from the past three years, focusing on applications, including gas separation, catalysis, drug delivery, optical and electronic applications, and sensing. We also summarize recent work on methods for MOF synthesis and computational modeling.
C1 [Meek, Scott T.; Allendorf, Mark D.] Sandia Natl Labs, Livermore, CA 94551 USA.
[Greathouse, Jeffery A.] Sandia Natl Labs, Albuquerque, NM 87123 USA.
RP Allendorf, MD (reprint author), Sandia Natl Labs, Livermore, CA 94551 USA.
EM mdallen@sandia.gov
FU Defense Threat Reduction Agency [074325I-0]; US Dept. of Energy Office
of Proliferation Detection; Sandia Laboratory; U.S. Department of
Energy's National Nuclear Security Administration [DE-AC04-94AL85000]
FX The authors gratefully acknowledge the financial support of the Defense
Threat Reduction Agency under contract 074325I-0; the US Dept. of Energy
Office of Proliferation Detection Advanced Materials Program; and the
Sandia Laboratory Directed Research and Development Program. Sandia
National Laboratories is a multi-program laboratory managed and operated
by Sandia Corporation, a wholly owned subsidiary of Lockheed Martin
Corporation, for the U.S. Department of Energy's National Nuclear
Security Administration under contract DE-AC04-94AL85000.
NR 167
TC 602
Z9 611
U1 161
U2 1207
PU WILEY-V C H VERLAG GMBH
PI WEINHEIM
PA PO BOX 10 11 61, D-69451 WEINHEIM, GERMANY
SN 0935-9648
J9 ADV MATER
JI Adv. Mater.
PD JAN 11
PY 2011
VL 23
IS 2
BP 249
EP 267
DI 10.1002/adma.201002854
PG 19
WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience &
Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied;
Physics, Condensed Matter
SC Chemistry; Science & Technology - Other Topics; Materials Science;
Physics
GA 702HY
UT WOS:000285886400006
PM 20972981
ER
PT J
AU Service, RJ
Yano, J
McConnell, I
Hwang, HJ
Niks, D
Hille, R
Wydrzynski, T
Burnap, RL
Hillier, W
Debus, RJ
AF Service, Rachel J.
Yano, Junko
McConnell, Iain
Hwang, Hong Jin
Niks, Dimitri
Hille, Russ
Wydrzynski, Tom
Burnap, Robert L.
Hillier, Warwick
Debus, Richard J.
TI Participation of Glutamate-354 of the CP43 Polypeptide in the Ligation
of Manganese and the Binding of Substrate Water in Photosystem II
SO BIOCHEMISTRY
LA English
DT Article
ID OXYGEN-EVOLVING COMPLEX; FTIR DIFFERENCE SPECTROSCOPY; S-STATE CYCLE;
TRANSFORM INFRARED-SPECTROSCOPY; X-RAY SPECTROSCOPY; TYROSINE Y-Z;
PHOTOSYNTHETIC MN4CA CLUSTER; BACTERIAL REACTION CENTERS; SITE-DIRECTED
MUTAGENESIS; SYNECHOCYSTIS SP PCC6803
AB In the current X-ray crystallographic structural models of photosystem II, Glu354 of the CP43 polypeptide is the only amino acid ligand of the oxygen-evolving Mn(4)Ca cluster that is not provided by the D1 polypeptide. To further explore the influence of this structurally unique residue on the properties of the Mn(4)Ca cluster, the CP43-E354Q mutant of the cyanobacterium Synechocystis sp. PCC 6803 was characterized with a variety of biophysical and spectroscopic methods, including polarography, EPR, X-ray absorption, FTIR, and mass spectrometry. The kinetics of oxygen release in the mutant were essentially unchanged from those in wild type. In addition, the oxygen flash yields exhibited normal period four oscillations having normal S state parameters, although the yields were lower, correlating with the mutant's lower steady-state rate (approximately 20% compared to wild type). Experiments conducted with H(2)(18)O showed that the fast and slow phases of substrate water exchange in CP43-E354Q thylakoid membranes were accelerated 8.5- and 1.8-fold, respectively, in the S(3) state compared to wild type. Purified oxygen-evolving CP43-E354Q PSII core complexes exhibited a slightly altered S(1) state Mn-EXAFS spectrum, a slightly altered S(2) state multiline EPR signal, a substantially altered S(2)-minus-S(1) FTIR difference spectrum, and an unusually long lifetime for the S(2) state (> 10 h) in a substantial fraction of reaction centers. In contrast, the S(2) state Mn-EXAFS spectrum was nearly indistinguishable from that of wild type. The S(2)-minus-S(1) FTIR difference spectrum showed alterations throughout the amide and carboxylate stretching regions. Global labeling with (15)N and specific labeling with L-[1-(13)C]alanine revealed that the mutation perturbs both amide II and carboxylate stretching modes and shifts the symmetric carboxylate stretching modes of the alpha-COO(-) group of D1-Ala344 (the C-terminus of the D1 polypeptide) to higher frequencies by 3-4 cm(-1) in both the S(1) and S(2) states. The EPR and FTIR data implied that 76-82% of CP43-E354Q PSII centers can achieve the S(2) state and that most of these can achieve the S(3) state, but no evidence for advancement beyond the S(3) state was observed in the FTIR data, at least not in a majority of PSII centers. Although the X-ray absorption and EPR data showed that the CP43-E354Q mutation only subtly perturbs the structure and spin state of the Mn(4)Ca cluster in the S(2) state, the FTIR and H(2)(18)O exchange data show that the mutation strongly influences other properties of the Mn(4)Ca cluster, altering the response of numerous carboxylate and amide groups to the increased positive charge that develops on the cluster during the S(1) to S(2) transition and weakening the binding of both substrate water molecules (or water-derived ligands), especially the one that exchanges rapidly in the S(3) state. The FTIR data provide evidence that CP43-Glu354 coordinates to the Mn(4)Ca cluster in the S(1) state as a bridging ligand between two metal ions but provide no compelling evidence that this residue changes its coordination mode during the S(1) to S(2) transition.
The H(2)(18)O exchange data provide evidence that CP43-Glu354 interacts with the Mn ion that ligats the substrate water molecule (or water-derived ligand) that is in rapid exchange in the S(3) state.
C1 [Service, Rachel J.; Niks, Dimitri; Hille, Russ; Debus, Richard J.] Univ Calif Riverside, Dept Biochem, Riverside, CA 92521 USA.
[Yano, Junko] Univ Calif Berkeley, Lawrence Berkeley Lab, Phys Biosci Div, Berkeley, CA 94720 USA.
[McConnell, Iain; Wydrzynski, Tom; Hillier, Warwick] Australian Natl Univ, Res Sch Biol, Canberra, ACT 0200, Australia.
[Hwang, Hong Jin; Burnap, Robert L.] Oklahoma State Univ, Dept Microbiol & Mol Genet, Stillwater, OK 74078 USA.
RP Debus, RJ (reprint author), Univ Calif Riverside, Dept Biochem, Riverside, CA 92521 USA.
EM richard.debus@ucr.edu
RI Hillier, Warwick/D-1034-2009
FU National Institutes of Health [GM 076232]; National Science Foundation
[MCB-0818371]; Australian Research Council [FT0990972]; Department of
Energy, Office of Science, Office of Basic Energy Sciences, Chemical
Sciences, Geosciences, and Biosciences Division [DE-AC02-05CH11231]
FX Support for this work was provided by the National Institutes of Health
(GM 076232 to R.J.D.), the National Science Foundation (MCB-0818371 to
R.L.B.), the Australian Research Council (FT0990972 to W.H.), and the
Department of Energy, Director, Office of Science, Office of Basic
Energy Sciences, Chemical Sciences, Geosciences, and Biosciences
Division (Contract DE-AC02-05CH11231 to J.Y.).
NR 125
TC 29
Z9 31
U1 1
U2 19
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0006-2960
J9 BIOCHEMISTRY-US
JI Biochemistry
PD JAN 11
PY 2011
VL 50
IS 1
BP 63
EP 81
DI 10.1021/bi1015937
PG 19
WC Biochemistry & Molecular Biology
SC Biochemistry & Molecular Biology
GA 700BI
UT WOS:000285706700007
PM 21114287
ER
PT J
AU Narayanan, M
Tong, S
Koritala, R
Ma, BH
Pol, VG
Balachandran, U
AF Narayanan, Manoj
Tong, Sheng
Koritala, Rachel
Ma, Beihai
Pol, Vilas G.
Balachandran, U.
TI Sol-Gel Synthesis of High-Quality SrRuO3 Thin-Film Electrodes
Suppressing the Formation of Detrimental RuO2 and the Dielectric
Properties of Integrated Lead Lanthanum Zirconate Titanate Films
SO CHEMISTRY OF MATERIALS
LA English
DT Article
ID CHEMICAL SOLUTION DEPOSITION; ELECTRICAL-PROPERTIES; VAPOR-DEPOSITION;
THERMAL-ANALYSIS; CAPACITORS; MICROSTRUCTURES; FABRICATION; SUBSTRATE;
FATIGUE; SRTIO3
AB A facile solution chemistry is demonstrated to fabricate high-quality polycrystalline strontium ruthenium oxide (SrRuO3) thin film electrodes on silicon substrates suppressing the formation of undesired ruthenium oxide (RuO2) for the deposition of dielectric and ferroelectric materials like lead lanthanum zirconatc titanate (PLZT). The robust, highly crystalline SrRuO3 film fabrication process does not favor the formation of RuO2 because of molecular level modification of the precursors possessing analogous melting points, yielding homogeneous films. This chemistry is further understood and complemented by kinetic and thermodynamic analysis of the DTA data under non-isothermal conditions, with which the activation energies to form RuO2 and SrRuO3 were calculated to be 156 +/- 17 and 96 +/- 10 kJ/mol, respectively. The room-temperature resistivity of the SrRuO3 film was measured to be similar to 850 +/- 50 42 mu Omega cm on silicon (100) substrates. The dielectric properties of sol gel-derived PLZT thin film capacitors on polycrystalline SrRuO3 electrodes were also measured to illustrate the high quality of the formed SrRuO3 bottom electrode. These results have broad implications for the expanded use of these conductive oxide electrodes in many applications that require low thermal budgets. The PLZT (8/52/48) films exhibited well-defined hysteresis loops with remanent polarization of similar to 10.5 mu C/cm(2), dielectric constant of > 1450, dielectric loss of < 0.06, and leakage current density of similar to 3.8 x 10(-8) A/cm(2). These dielectric properties are similar to those of F'LZT on platinized silicon, indicating the high quality of the bottom conductive oxide layer. In addition, the PLZT capacitors were essentially fatigue free for > 1 x 10(9) cycles when deposited over an oxide electrode.
C1 [Narayanan, Manoj; Tong, Sheng; Ma, Beihai; Balachandran, U.] Argonne Natl Lab, Div Energy Syst, Argonne, IL 60439 USA.
[Koritala, Rachel] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA.
[Pol, Vilas G.] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA.
RP Narayanan, M (reprint author), Argonne Natl Lab, Div Energy Syst, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM mnarayanan@anl.gov
RI Tong, Sheng/A-2129-2011; Koritala, Rachel/F-1774-2011; Narayanan,
Manoj/A-4622-2011; Ma, Beihai/I-1674-2013
OI Tong, Sheng/0000-0003-0355-7368; Ma, Beihai/0000-0003-3557-2773
FU U.S. Department of Energy, Office of Vehicle Technologies
[DEAC02-06CH11357]; UChicago Argonne, LLC [DE-AC02-06CH11357]
FX Work funded by the U.S. Department of Energy, Office of Vehicle
Technologies Program, under Contract DEAC02-06CH11357. The electron
microscopy was accomplished at the Electron Microscopy Center for
Materials Research at Argonne National Laboratory, a U.S. Department of
Energy Office of Science Laboratory operated under Contract
DE-AC02-06CH11357 by UChicago Argonne, LLC. Special thanks to Dr. Robert
W. Schwartz at Missouri University of Science and Technology, Rolla, MO,
and Dr. Wei Li (MSD) at Argonne National Laboratory for their valuable
comments on the manuscript.
NR 37
TC 4
Z9 4
U1 7
U2 31
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0897-4756
J9 CHEM MATER
JI Chem. Mat.
PD JAN 11
PY 2011
VL 23
IS 1
BP 106
EP 113
DI 10.1021/cm102136f
PG 8
WC Chemistry, Physical; Materials Science, Multidisciplinary
SC Chemistry; Materials Science
GA 700GV
UT WOS:000285726900015
ER
PT J
AU Stock, SR
Yuan, F
Brinson, LC
Almer, JD
AF Stock, S. R.
Yuan, Fang
Brinson, L. C.
Almer, J. D.
TI Internal strain gradients quantified in bone under load using
high-energy X-ray scattering
SO JOURNAL OF BIOMECHANICS
LA English
DT Article
DE X-ray diffraction; Wide angle X-ray scattering (WAXS); Internal stress
measurement; Bone; Finite element analysis
ID CORTICAL BONE; CARBONATED APATITE; COLLAGEN PHASES; DIFFRACTION;
DEFORMATION; PARAMETERS; TEXTURE; HAP
AB High-energy synchrotron X-ray scattering ( > 60 keV) allows noninvasive quantification of internal strains within bone. In this proof-of-principle study, wide angle X-ray scattering maps internal strain vs position in cortical bone (murine tibia, bovine femur) under compression, specifically using the response of the mineral phase of carbonated hydroxyapatite. The technique relies on the response of the carbonated hydroxyapatite unit cells and their Debye cones (from nanocrystals correctly oriented for diffraction) to applied stress. Unstressed, the Debye cones produce circular rings on the two-dimensional X-ray detector while applied stress deforms the rings to ellipses centered on the transmitted beam. Ring ellipticity is then converted to strain via standard methods. Strain is measured repeatedly, at each specimen location for each applied stress. Experimental strains from wide angle X-ray scattering and an attached strain gage show bending of the rat tibia and agree qualitatively with results of a simplified finite element model. At their greatest, the apatite-derived strains approach 2500 mu epsilon on one side of the tibia and are near zero on the other. Strains maps around a hole in the femoral bone block demonstrate the effect of the stress concentrator as loading increased and agree qualitatively with the finite element model. Experimentally, residual strains of approximately 2000 mu epsilon are present initially, and strain rises to approximately 4500 mu epsilon at 95 MPa applied stress (about 1000 mu epsilon above the strain in the surrounding material). The experimental data suggest uneven loading which is reproduced qualitatively with finite element modeling. (C) 2010 Elsevier Ltd. All rights reserved.
C1 [Stock, S. R.] Northwestern Univ, Feinberg Sch Med, Dept Biol Chem & Mol Pharmacol, Chicago, IL 60611 USA.
[Yuan, Fang; Brinson, L. C.] Northwestern Univ, Dept Mat Sci & Engn, Evanston, IL 60208 USA.
[Brinson, L. C.] Northwestern Univ, Dept Mech Engn, Evanston, IL 60208 USA.
[Almer, J. D.] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA.
RP Stock, SR (reprint author), Northwestern Univ, Feinberg Sch Med, Dept Biol Chem & Mol Pharmacol, Mail Code S-215,303 E Chicago Ave, Chicago, IL 60611 USA.
EM s-stock@northwestern.edu
RI Brinson, L. Catherine/B-6678-2009; Brinson, L Catherine/B-1315-2013
OI Brinson, L Catherine/0000-0003-2551-1563
NR 28
TC 9
Z9 10
U1 1
U2 14
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0021-9290
J9 J BIOMECH
JI J. Biomech.
PD JAN 11
PY 2011
VL 44
IS 2
SI SI
BP 291
EP 296
DI 10.1016/j.jbiomech.2010.10.015
PG 6
WC Biophysics; Engineering, Biomedical
SC Biophysics; Engineering
GA 722WP
UT WOS:000287466300013
PM 21051040
ER
PT J
AU Bi, XH
Patil, CA
Lynch, CC
Pharr, GM
Mahadevan-Jansen, A
Nyman, JS
AF Bi, Xiaohong
Patil, Chetan A.
Lynch, Conor C.
Pharr, George M.
Mahadevan-Jansen, Anita
Nyman, Jeffry S.
TI Raman and mechanical properties correlate at whole bone- and
tissue-levels in a genetic mouse model
SO JOURNAL OF BIOMECHANICS
LA English
DT Article
DE Raman; Bone quality; Nanoindentation; Micro-CT; Fracture risk
ID HUMAN CORTICAL BONE; AGE-RELATED-CHANGES; MINERAL-CONTENT; OSTEOPOROTIC
FRACTURES; BENDING STRENGTH; HUMAN FEMUR; IN-VIVO; PHYSICAL-PROPERTIES;
TENSILE PROPERTIES; ELASTIC-MODULUS
AB The fracture resistance of bone arises from the composition, orientation, and distribution of the primary constituents at each hierarchical level of organization. Therefore, to establish the relevance of Raman spectroscopy (RS) in identifying differences between strong or tough bone and weak or brittle bone, we investigated whether Raman-derived properties could explain the variance in biomechanical properties at both the whole bone and the tissue-level, and do so independently of traditional measurements of mineralization. We harvested femurs from wild-type mice and mice lacking matrix metalloproteinase 2 because the mutant mice have a known reduction in mineralization. Next, RS quantified compositional properties directly from the intact diaphysis followed by micro-computed tomography to quantify mineralization density (Ct.TMD). Correlations were then tested for significance between these properties and the biomechanical properties as determined by the three-point bending test on the same femurs. Harvested tibia were embedded in plastic, sectioned transversely, and polished in order to acquire average Raman properties per specimen that were then correlated with average nanoindentation properties per specimen. Dividing the v(1) phosphate by the proline peak intensity provided the strongest correlation between the mineral-to-collagen ratio and the biomechanical properties (whole bone modulus, strength, and post-yield deflection plus nanoindentation modulus). Moreover, the linear combination of v(1) phosphate/proline and Ct.TMD provided the best explanation of the variance in strength between the genotypes, and it alone was the best explanatory variable for brittleness. Causal relationships between Raman and fracture resistance need to be investigated, but Raman has the potential to assess fracture risk. Published by Elsevier Ltd.
C1 [Bi, Xiaohong; Patil, Chetan A.; Mahadevan-Jansen, Anita] Vanderbilt Univ, Dept Biomed Engn, Nashville, TN 37235 USA.
[Nyman, Jeffry S.] Tennessee Valley Healthcare Syst, Dept Vet Affairs, Res Serv, Nashville, TN USA.
[Lynch, Conor C.; Nyman, Jeffry S.] Vanderbilt Univ, Med Ctr, Dept Orthopaed & Rehabil, Nashville, TN 37232 USA.
[Pharr, George M.] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA.
[Pharr, George M.] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN USA.
[Nyman, Jeffry S.] Vanderbilt Univ, Med Ctr, Vanderbilt Ctr Bone Biol, Nashville, TN USA.
RP Nyman, JS (reprint author), Vanderbilt Orthopaed Inst, Med Ctr E, South Tower,Suite 4200, Nashville, TN 37232 USA.
EM jeffry.s.nyman@vanderbilt.edu
RI Nyman, Jeffry/L-5736-2013
FU NCI NIH HHS [U54 CA126505-03, U54-CA126505, U54 CA126505]
NR 67
TC 36
Z9 36
U1 2
U2 18
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0021-9290
J9 J BIOMECH
JI J. Biomech.
PD JAN 11
PY 2011
VL 44
IS 2
SI SI
BP 297
EP 303
DI 10.1016/j.jbiomech.2010.10.009
PG 7
WC Biophysics; Engineering, Biomedical
SC Biophysics; Engineering
GA 722WP
UT WOS:000287466300014
PM 21035119
ER
PT J
AU Buchanan, JL
Gilbert, RP
Ou, MJY
AF Buchanan, James L.
Gilbert, Robert P.
Ou, Miao-jung Y.
TI Wavelet decomposition of transmitted ultrasound wave through a 1-D
muscle-bone system
SO JOURNAL OF BIOMECHANICS
LA English
DT Article
DE Ultrasound; Muscle-cortical-cancellous bone; Biot-Johnson-Koplik-Dashen
model; Transfer functions; Travel-time exponentials decomposition
ID CANCELLOUS BONE; FREQUENCY RANGE; ELASTIC WAVES; POROUS-MEDIA;
PROPAGATION
AB In the attempt for using ultrasound as a diagnostic device for osteoporosis, several authors have described the result of the in vitro experiment in which ultrasound is passed through a cancellous bone specimen placed in a water tank. However, in the in vivo setting, a patient's cancellous bone is surrounded by cortical and muscle layers. This paper considers in the one-dimensional case (1) what effect the cortical bone segments surrounding the cancellous segment would have on the received signal and (2) what the received signal would be when a source and receiver are placed on opposite sides of a structure consisting of a cancellous segment surrounded by cortical and muscle layers. Mathematically this is accomplished by representing the received signal as a sum of wavelets which go through different reflection-transmission histories at the muscle-cortical bone and cortical-cancellous bone interfaces. The muscle and cortical bone are modeled as elastic materials and the cancellous bone as a poroelastic material described by the Biot-Johnson-Koplik-Dashen model. The approach presented here permits the assessment of which possible paths of transmission and reflection through the cortical-cancellous or muscle-cortical-cancellous complex will result in significant contributions to the received waveform. This piece of information can be useful for solving the inverse problem of non-destructive assessment of material properties of bone. Our methodology can be generalized to three-dimensional parallelly layered structure by first applying Fourier transform in the directions perpendicular to the transverse direction. (C) 2010 Elsevier Ltd. All rights reserved.
C1 [Ou, Miao-jung Y.] Oak Ridge Natl Lab, Joint Inst Computat Sci, Oak Ridge, TN 37831 USA.
[Gilbert, Robert P.] Univ Delaware, Dept Math Sci, Newark, DE 19711 USA.
[Buchanan, James L.] USN Acad, Dept Math, Annapolis, MD 21402 USA.
RP Ou, MJY (reprint author), Oak Ridge Natl Lab, Joint Inst Computat Sci, Oak Ridge, TN 37831 USA.
EM mou@utk.edu
NR 10
TC 4
Z9 4
U1 0
U2 3
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0021-9290
J9 J BIOMECH
JI J. Biomech.
PD JAN 11
PY 2011
VL 44
IS 2
SI SI
BP 352
EP 358
DI 10.1016/j.jbiomech.2010.10.030
PG 7
WC Biophysics; Engineering, Biomedical
SC Biophysics; Engineering
GA 722WP
UT WOS:000287466300021
PM 21092969
ER
PT J
AU Feng, YJ
Jaramillo, R
Banerjee, A
Honig, JM
Rosenbaum, TF
AF Feng, Yejun
Jaramillo, R.
Banerjee, A.
Honig, J. M.
Rosenbaum, T. F.
TI Magnetism, structure, and charge correlation at a pressure-induced
Mott-Hubbard insulator-metal transition
SO PHYSICAL REVIEW B
LA English
DT Article
ID NIS2-XSEX SINGLE-CRYSTALS; PYRITE-STRUCTURE; NIS2; DYNAMICS; SULFIDES;
SYSTEM
AB We use synchrotron x-ray diffraction and electrical transport under pressure to probe both the magnetism and the structure of single-crystal NiS2 across its Mott-Hubbard transition. In the insulator, the low-temperature antiferromagnetic order results from superexchange among correlated electrons and couples to a (1/2, 1/2, 1/2) superlattice distortion. Applying pressure suppresses the insulating state, but enhances the magnetism as the superexchange increases with decreasing lattice constant. By comparing our results under pressure to previous studies of doped crystals, we show that this dependence of the magnetism on the lattice constant is consistent for both band broadening and band filling. In the high-pressure metallic phase the lattice symmetry is reduced from cubic to monoclinic, pointing to the primary influence of charge correlations at the transition. There exists a wide regime of phase separation that may be a general characteristic of correlated quantum matter.
C1 [Feng, Yejun] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA.
[Feng, Yejun; Banerjee, A.; Rosenbaum, T. F.] Univ Chicago, James Franck Inst, Chicago, IL 60637 USA.
[Feng, Yejun; Banerjee, A.; Rosenbaum, T. F.] Univ Chicago, Dept Phys, Chicago, IL 60637 USA.
[Jaramillo, R.] Harvard Univ, Sch Engn & Appl Sci, Cambridge, MA 01238 USA.
[Honig, J. M.] Purdue Univ, Dept Chem, W Lafayette, IN 47907 USA.
RP Feng, YJ (reprint author), Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA.
RI Feng, Yejun/A-5417-2009;
OI Feng, Yejun/0000-0003-3667-056X; , /0000-0003-3116-6719; Banerjee,
Arnab/0000-0002-3088-6071
FU NSF [DMR-0907025]; U.S. Department of Energy Basic Energy Sciences
[NEAC02-06CH11357]
FX We are grateful to D. Robinson and J.-W. Kim for technical support at
6-ID-B of the Advanced Photon Source, and to X. Yao for growth of the
crystals. The work at the University of Chicago was supported by NSF
Grant No. DMR-0907025. Use of the Advanced Photon Source was supported
by the U.S. Department of Energy Basic Energy Sciences under Contract
No. NEAC02-06CH11357.
NR 26
TC 6
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U1 1
U2 24
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD JAN 11
PY 2011
VL 83
IS 3
AR 035106
DI 10.1103/PhysRevB.83.035106
PG 5
WC Physics, Condensed Matter
SC Physics
GA 713VS
UT WOS:000286766100001
ER
PT J
AU Maniadis, P
Alexandrov, BS
Bishop, AR
Rasmussen, KO
AF Maniadis, P.
Alexandrov, B. S.
Bishop, A. R.
Rasmussen, K. O.
TI Feigenbaum cascade of discrete breathers in a model of DNA
SO PHYSICAL REVIEW E
LA English
DT Article
ID TRANSCRIPTION INITIATION; NONLINEAR LATTICES; EXISTENCE; DYNAMICS
AB We demonstrate that period-doubled discrete breathers appear from the anticontinuum limit of the driven Peyrard-Bishop-Dauxois model of DNA. These novel breathers result from a stability overlap between subharmonic solutions of the driven Morse oscillator. Subharmonic breathers exist whenever a stability overlap is present within the Feigenbaum cascade to chaos and therefore an entire cascade of such breathers exists. This phenomenon is present in any driven lattice where the on-site potential admits subharmonic solutions. In DNA these breathers may have ramifications for cellular gene expression.
C1 [Maniadis, P.; Alexandrov, B. S.; Bishop, A. R.; Rasmussen, K. O.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
RP Maniadis, P (reprint author), Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
RI Rasmussen, Kim/B-5464-2009; Maniadis, Panagiotis/A-7861-2012;
Alexandrov, Boian/D-2488-2010
OI Rasmussen, Kim/0000-0002-4029-4723; Alexandrov,
Boian/0000-0001-8636-4603
FU National Nuclear Security Administration of the US Department of Energy
at Los Alamos National Laboratory [DE-AC52-06NA25396]
FX This research was carried out under the auspices of the National Nuclear
Security Administration of the US Department of Energy at Los Alamos
National Laboratory under Contract No. DE-AC52-06NA25396.
NR 16
TC 18
Z9 19
U1 1
U2 5
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1539-3755
J9 PHYS REV E
JI Phys. Rev. E
PD JAN 11
PY 2011
VL 83
IS 1
AR 011904
DI 10.1103/PhysRevE.83.011904
PN 1
PG 4
WC Physics, Fluids & Plasmas; Physics, Mathematical
SC Physics
GA 713RZ
UT WOS:000286756400007
PM 21405710
ER
PT J
AU Mithen, JP
Daligault, J
Gregori, G
AF Mithen, James P.
Daligault, Jerome
Gregori, Gianluca
TI Extent of validity of the hydrodynamic description of ions in dense
plasmas
SO PHYSICAL REVIEW E
LA English
DT Article
ID RAY THOMSON SCATTERING; ONE-COMPONENT-PLASMA; STATISTICAL-MECHANICS;
SYSTEMS; MATTER; LIMIT
AB We show that the hydrodynamic description can be applied to modeling the ionic response in dense plasmas for a wide range of length scales that are experimentally accessible. Using numerical simulations for the Yukawa model, we find that the maximum wave number k(max) at which the hydrodynamic description applies is independent of the coupling strength, given by k(max)lambda(s) similar or equal to 0.43, where lambda(s) is the ionic screening length. Our results show that the hydrodynamic description can be used for interpreting x-ray scattering data from fourth generation light sources and high power lasers. In addition, our investigation sheds new light on how the domain of validity of the hydrodynamic description depends on both the microscopic properties and the thermodynamic state of fluids in general.
C1 [Mithen, James P.; Gregori, Gianluca] Univ Oxford, Dept Phys, Clarendon Lab, Oxford OX1 3PU, England.
[Daligault, Jerome] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
RP Mithen, JP (reprint author), Univ Oxford, Dept Phys, Clarendon Lab, Parks Rd, Oxford OX1 3PU, England.
EM james.mithen@physics.ox.ac.uk
FU University of Oxford; EPSRC [EP/G007187/1]; Los Alamos National
Laboratory [DE-AC52-06NA25396]
FX This work was supported by the John Fell Fund at the University of
Oxford and by EPSRC Grant No. EP/G007187/1. The work of J.D. was
performed for the US Department of Energy by Los Alamos National
Laboratory under Contract No. DE-AC52-06NA25396.
NR 22
TC 21
Z9 21
U1 0
U2 7
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1539-3755
J9 PHYS REV E
JI Phys. Rev. E
PD JAN 11
PY 2011
VL 83
IS 1
AR 015401
DI 10.1103/PhysRevE.83.015401
PN 2
PG 4
WC Physics, Fluids & Plasmas; Physics, Mathematical
SC Physics
GA 713SA
UT WOS:000286756500001
PM 21405737
ER
PT J
AU Abazov, VM
Abbott, B
Abolins, M
Acharya, BS
Adams, M
Adams, T
Alexeev, GD
Alkhazov, G
Alton, A
Alverson, G
Alves, GA
Ancu, LS
Aoki, M
Arnoud, Y
Arov, M
Askew, A
Asman, B
Atramentov, O
Avila, C
BackusMayes, J
Badaud, F
Bagby, L
Baldin, B
Bandurin, DV
Banerjee, S
Barberis, E
Baringer, P
Barreto, J
Bartlett, JF
Bassler, U
Bazterra, V
Beale, S
Bean, A
Begalli, M
Begel, M
Belanger-Champagne, C
Bellantoni, L
Beri, SB
Bernardi, G
Bernhard, R
Bertram, I
Besancon, M
Beuselinck, R
Bezzubov, VA
Bhat, PC
Bhatnagar, V
Blazey, G
Blessing, S
Bloom, K
Boehnlein, A
Boline, D
Bolton, TA
Boos, EE
Borissov, G
Bose, T
Brandt, A
Brandt, O
Brock, R
Brooijmans, G
Bross, A
Brown, D
Brown, J
Bu, XB
Buchholz, D
Buehler, M
Buescher, V
Bunichev, V
Burdin, S
Burnett, TH
Buszello, CP
Calpas, B
Camacho-Perez, E
Carrasco-Lizarraga, MA
Casey, BCK
Castilla-Valdez, H
Chakrabarti, S
Chakraborty, D
Chan, KM
Chandra, A
Chen, G
Chevalier-Thery, S
Cho, DK
Cho, SW
Choi, S
Choudhary, B
Christoudias, T
Cihangir, S
Claes, D
Clutter, J
Cooke, M
Cooper, WE
Corcoran, M
Couderc, F
Cousinou, MC
Croc, A
Cutts, D
Cwiok, M
Das, A
Davies, G
De, K
de Jong, SJ
De La Cruz-Burelo, E
Deliot, F
Demarteau, M
Demina, R
Denisov, D
Denisov, SP
Desai, S
DeVaughan, K
Diehl, HT
Diesburg, M
Dominguez, A
Dorland, T
Dubey, A
Dudko, LV
Duggan, D
Duperrin, A
Dutt, S
Dyshkant, A
Eads, M
Edmunds, D
Ellison, J
Elvira, VD
Enari, Y
Eno, S
Evans, H
Evdokimov, A
Evdokimov, VN
Facini, G
Ferbel, T
Fiedler, F
Filthaut, F
Fisher, W
Fisk, HE
Fortner, M
Fox, H
Fuess, S
Gadfort, T
Garcia-Bellido, A
Gavrilov, V
Gay, P
Geist, W
Geng, W
Gerbaudo, D
Gerber, CE
Gershtein, Y
Ginther, G
Golovanov, G
Goussiou, A
Grannis, PD
Greder, S
Greenlee, H
Greenwood, ZD
Gregores, EM
Grenier, G
Gris, P
Grivaz, JF
Grohsjean, A
Grunendahl, S
Grunewald, MW
Guo, F
Guo, J
Gutierrez, G
Gutierrez, P
Haas, A
Hagopian, S
Haley, J
Han, L
Harder, K
Harel, A
Hauptman, JM
Hays, J
Head, T
Hebbeker, T
Hedin, D
Hegab, H
Heinson, AP
Heintz, U
Hensel, C
Heredia-De La Cruz, I
Herner, K
Hesketh, G
Hildreth, MD
Hirosky, R
Hoang, T
Hobbs, JD
Hoeneisen, B
Hohlfeld, M
Hossain, S
Hubacek, Z
Huske, N
Hynek, V
Iashvili, I
Illingworth, R
Ito, AS
Jabeen, S
Jaffre, M
Jain, S
Jamin, D
Jesik, R
Johns, K
Johnson, M
Johnston, D
Jonckheere, A
Jonsson, P
Joshi, J
Juste, A
Kaadze, K
Kajfasz, E
Karmanov, D
Kasper, PA
Katsanos, I
Kehoe, R
Kermiche, S
Khalatyan, N
Khanov, A
Kharchilava, A
Kharzheev, YN
Khatidze, D
Kirby, MH
Kohli, JM
Kozelov, AV
Kraus, J
Kumar, A
Kupco, A
Kurca, T
Kuzmin, VA
Kvita, J
Lammers, S
Landsberg, G
Lebrun, P
Lee, HS
Lee, SW
Lee, WM
Lellouch, J
Li, L
Li, QZ
Lietti, SM
Lim, JK
Lincoln, D
Linnemann, J
Lipaev, VV
Lipton, R
Liu, Y
Liu, Z
Lobodenko, A
Lokajicek, M
Love, P
Lubatti, HJ
Luna-Garcia, R
Lyon, AL
Maciel, AKA
Mackin, D
Madar, R
Magana-Villalba, R
Malik, S
Malyshev, VL
Maravin, Y
Martinez-Ortega, J
McCarthy, R
McGivern, CL
Meijer, MM
Melnitchouk, A
Menezes, D
Mercadante, PG
Merkin, M
Meyer, A
Meyer, J
Mondal, NK
Muanza, GS
Mulhearn, M
Nagy, E
Naimuddin, M
Narain, M
Nayyar, R
Neal, HA
Negret, JP
Neustroev, P
Novaes, SF
Nunnemann, T
Obrant, G
Orduna, J
Osman, N
Osta, J
Garzon, GJOY
Owen, M
Padilla, M
Pangilinan, M
Parashar, N
Parihar, V
Park, SK
Parsons, J
Partridge, R
Parua, N
Patwa, A
Penning, B
Perfilov, M
Peters, K
Peters, Y
Petrillo, G
Petroff, P
Piegaia, R
Piper, J
Pleier, MA
Podesta-Lerma, PLM
Podstavkov, VM
Pol, ME
Polozov, P
Popov, AV
Prewitt, M
Price, D
Protopopescu, S
Qian, J
Quadt, A
Quinn, B
Rangel, MS
Ranjan, K
Ratoff, PN
Razumov, I
Renkel, P
Rich, P
Rijssenbeek, M
Ripp-Baudot, I
Rizatdinova, F
Rominsky, M
Royon, C
Rubinov, P
Ruchti, R
Safronov, G
Sajot, G
Sanchez-Hernandez, A
Sanders, MP
Sanghi, B
Santos, AS
Savage, G
Sawyer, L
Scanlon, T
Schamberger, RD
Scheglov, Y
Schellman, H
Schliephake, T
Schlobohm, S
Schwanenberger, C
Schwienhorst, R
Sekaric, J
Severini, H
Shabalina, E
Shary, V
Shchukin, AA
Shivpuri, RK
Simak, V
Sirotenko, V
Skubic, P
Slattery, P
Smirnov, D
Smith, KJ
Snow, GR
Snow, J
Snyder, S
Soldner-Rembold, S
Sonnenschein, L
Sopczak, A
Sosebee, M
Soustruznik, K
Spurlock, B
Stark, J
Stolin, V
Stoyanova, DA
Strauss, E
Strauss, M
Strom, D
Stutte, L
Svoisky, P
Takahashi, M
Tanasijczuk, A
Taylor, W
Titov, M
Tokmenin, VV
Tsybychev, D
Tuchming, B
Tully, C
Tuts, PM
Uvarov, L
Uvarov, S
Uzunyan, S
Van Kooten, R
van Leeuwen, WM
Varelas, N
Varnes, EW
Vasilyev, IA
Verdier, P
Vertogradov, LS
Verzocchi, M
Vesterinen, M
Vilanova, D
Vint, P
Vokac, P
Wahl, HD
Wang, MHLS
Warchol, J
Watts, G
Wayne, M
Weber, M
Welty-Rieger, L
Wetstein, M
White, A
Wicke, D
Williams, MRJ
Wilson, GW
Wimpenny, SJ
Wobisch, M
Wood, DR
Wyatt, TR
Xie, Y
Xu, C
Yacoob, S
Yamada, R
Yang, WC
Yasuda, T
Yatsunenko, YA
Ye, Z
Yin, H
Yip, K
Yoo, HD
Youn, SW
Yu, J
Zelitch, S
Zhao, T
Zhou, B
Zhu, J
Zielinski, M
Zieminska, D
Zivkovic, L
AF Abazov, V. M.
Abbott, B.
Abolins, M.
Acharya, B. S.
Adams, M.
Adams, T.
Alexeev, G. D.
Alkhazov, G.
Alton, A.
Alverson, G.
Alves, G. A.
Ancu, L. S.
Aoki, M.
Arnoud, Y.
Arov, M.
Askew, A.
Asman, B.
Atramentov, O.
Avila, C.
BackusMayes, J.
Badaud, F.
Bagby, L.
Baldin, B.
Bandurin, D. V.
Banerjee, S.
Barberis, E.
Baringer, P.
Barreto, J.
Bartlett, J. F.
Bassler, U.
Bazterra, V.
Beale, S.
Bean, A.
Begalli, M.
Begel, M.
Belanger-Champagne, C.
Bellantoni, L.
Beri, S. B.
Bernardi, G.
Bernhard, R.
Bertram, I.
Besancon, M.
Beuselinck, R.
Bezzubov, V. A.
Bhat, P. C.
Bhatnagar, V.
Blazey, G.
Blessing, S.
Bloom, K.
Boehnlein, A.
Boline, D.
Bolton, T. A.
Boos, E. E.
Borissov, G.
Bose, T.
Brandt, A.
Brandt, O.
Brock, R.
Brooijmans, G.
Bross, A.
Brown, D.
Brown, J.
Bu, X. B.
Buchholz, D.
Buehler, M.
Buescher, V.
Bunichev, V.
Burdin, S.
Burnett, T. H.
Buszello, C. P.
Calpas, B.
Camacho-Perez, E.
Carrasco-Lizarraga, M. A.
Casey, B. C. K.
Castilla-Valdez, H.
Chakrabarti, S.
Chakraborty, D.
Chan, K. M.
Chandra, A.
Chen, G.
Chevalier-Thery, S.
Cho, D. K.
Cho, S. W.
Choi, S.
Choudhary, B.
Christoudias, T.
Cihangir, S.
Claes, D.
Clutter, J.
Cooke, M.
Cooper, W. E.
Corcoran, M.
Couderc, F.
Cousinou, M. -C.
Croc, A.
Cutts, D.
Cwiok, M.
Das, A.
Davies, G.
De, K.
de Jong, S. J.
De La Cruz-Burelo, E.
Deliot, F.
Demarteau, M.
Demina, R.
Denisov, D.
Denisov, S. P.
Desai, S.
DeVaughan, K.
Diehl, H. T.
Diesburg, M.
Dominguez, A.
Dorland, T.
Dubey, A.
Dudko, L. V.
Duggan, D.
Duperrin, A.
Dutt, S.
Dyshkant, A.
Eads, M.
Edmunds, D.
Ellison, J.
Elvira, V. D.
Enari, Y.
Eno, S.
Evans, H.
Evdokimov, A.
Evdokimov, V. N.
Facini, G.
Ferbel, T.
Fiedler, F.
Filthaut, F.
Fisher, W.
Fisk, H. E.
Fortner, M.
Fox, H.
Fuess, S.
Gadfort, T.
Garcia-Bellido, A.
Gavrilov, V.
Gay, P.
Geist, W.
Geng, W.
Gerbaudo, D.
Gerber, C. E.
Gershtein, Y.
Ginther, G.
Golovanov, G.
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Wyatt, T. R.
Xie, Y.
Xu, C.
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Yamada, R.
Yang, W. -C.
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Yatsunenko, Y. A.
Ye, Z.
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Yip, K.
Yoo, H. D.
Youn, S. W.
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Zhou, B.
Zhu, J.
Zielinski, M.
Zieminska, D.
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TI Determination of the Width of the Top Quark
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID HEAVY QUARKS
AB We extract the total width of the top quark, Gamma(t), from the partial decay width Gamma(t -> Wb) measured using the t-channel cross section for single top-quark production and from the branching fraction B(t -> Wb) measured in t (t) over bar t events using up to 2.3 fb(-1) of integrated luminosity collected by the D0 Collaboration at the Tevatron p (p) over bar Collider. The result is Gamma(t) = 1.99(-0.55)(+0.69) GeV, which translates to a top-quark lifetime of tau(t) = (3.3-(+1.3)(0.9)) x 10(-25) s. Assuming a high mass fourth generation b' quark and unitarity of the four-generation quark-mixing matrix, we set the first upper limit on vertical bar V-tb'vertical bar < 0.63 at 95% C.L.
C1 [Abazov, V. M.; Alexeev, G. D.; Golovanov, G.; Kharzheev, Y. N.; Malyshev, V. L.; Tokmenin, V. V.; Vertogradov, L. S.; Yatsunenko, Y. A.] Joint Inst Nucl Res, Dubna, Russia.
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[Beale, S.; Liu, Z.; Taylor, W.] Simon Fraser Univ, Vancouver, BC, Canada.
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[van Leeuwen, W. M.] Inst NIKHEF, FOM, Amsterdam, Netherlands.
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[Das, A.; Johns, K.; Varnes, E. W.] Univ Arizona, Tucson, AZ 85721 USA.
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[Aoki, M.; Bagby, L.; Baldin, B.; Bartlett, J. F.; Bellantoni, L.; Bhat, P. C.; Boehnlein, A.; Bross, A.; Casey, B. C. K.; Cihangir, S.; Cooke, M.; Cooper, W. E.; Demarteau, M.; Denisov, D.; Desai, S.; Diehl, H. T.; Diesburg, M.; Elvira, V. D.; Enari, Y.; Fisk, H. E.; Fuess, S.; Ginther, G.; Greenlee, H.; Gruenendahl, S.; Gutierrez, G.; Illingworth, R.; Ito, A. S.; Johnson, M.; Jonckheere, A.; Juste, A.; Kasper, P. A.; Khalatyan, N.; Lee, W. M.; Li, Q. Z.; Lincoln, D.; Lipton, R.; Lyon, A. L.; Penning, B.; Podstavkov, V. M.; Rominsky, M.; Rubinov, P.; Sanghi, B.; Savage, G.; Sirotenko, V.; Stutte, L.; Verzocchi, M.; Weber, M.; Xie, Y.; Yamada, R.; Yasuda, T.; Ye, Z.; Youn, S. W.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
[Adams, M.; Bazterra, V.; Gerber, C. E.; Strom, D.; Varelas, N.] Univ Illinois, Chicago, IL 60607 USA.
[Blazey, G.; Chakraborty, D.; Dyshkant, A.; Fortner, M.; Hedin, D.; Menezes, D.; Uzunyan, S.] Univ Illinois, De Kalb, IL 60115 USA.
[Buchholz, D.; Kirby, M. H.; Schellman, H.; Welty-Rieger, L.; Yacoob, S.] Northwestern Univ, Evanston, IL 60208 USA.
[Evans, H.; Lammers, S.; Parua, N.; Price, D.; Van Kooten, R.; Zieminska, D.] Indiana Univ, Bloomington, IN 47405 USA.
[Parashar, N.] Purdue Univ Calumet, Hammond, IN 46323 USA.
[Chan, K. M.; Hildreth, M. D.; Osta, J.; Ruchti, R.; Smirnov, D.; Warchol, J.; Wayne, M.] Univ Notre Dame, Notre Dame, IN 46556 USA.
[Hauptman, J. M.; Lee, S. W.] Iowa State Univ, Ames, IA 50011 USA.
[Baringer, P.; Bean, A.; Chen, G.; Clutter, J.; McGivern, C. L.; Sekaric, J.; Wilson, G. W.] Univ Kansas, Lawrence, KS 66045 USA.
[Bolton, T. A.; Kaadze, K.; Maravin, Y.] Kansas State Univ, Manhattan, KS 66506 USA.
[Arov, M.; Greenwood, Z. D.; Sawyer, L.; Wobisch, M.] Louisiana Tech Univ, Ruston, LA 71272 USA.
[Eno, S.; Ferbel, T.; Wetstein, M.] Univ Maryland, College Pk, MD 20742 USA.
[Bose, T.] Boston Univ, Boston, MA 02215 USA.
[Alverson, G.; Barberis, E.; Facini, G.; Haley, J.; Hesketh, G.; Wood, D. R.] Northeastern Univ, Boston, MA 02115 USA.
[Alton, A.; Herner, K.; Neal, H. A.; Qian, J.; Xu, C.; Zhou, B.; Zhu, J.] Univ Michigan, Ann Arbor, MI 48109 USA.
[Abolins, M.; Brock, R.; Edmunds, D.; Fisher, W.; Geng, W.; Kraus, J.; Linnemann, J.; Piper, J.; Schwienhorst, R.] Michigan State Univ, E Lansing, MI 48824 USA.
[Melnitchouk, A.; Quinn, B.] Univ Mississippi, University, MS 38677 USA.
[Bloom, K.; Claes, D.; DeVaughan, K.; Dominguez, A.; Eads, M.; Johnston, D.; Katsanos, I.; Malik, S.; Snow, G. R.] Univ Nebraska, Lincoln, NE 68588 USA.
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[Gerbaudo, D.; Tully, C.] Princeton Univ, Princeton, NJ 08544 USA.
[Iashvili, I.; Jain, S.; Kharchilava, A.; Kumar, A.; Smith, K. J.] SUNY Buffalo, Buffalo, NY 14260 USA.
[Brooijmans, G.; Haas, A.; Parsons, J.; Tuts, P. M.; Zivkovic, L.] Columbia Univ, New York, NY 10027 USA.
[Demina, R.; Ferbel, T.; Garcia-Bellido, A.; Ginther, G.; Harel, A.; Petrillo, G.; Slattery, P.; Wang, M. H. L. S.; Zielinski, M.] Univ Rochester, Rochester, NY 14627 USA.
[Boline, D.; Chakrabarti, S.; Grannis, P. D.; Guo, F.; Guo, J.; Hobbs, J. D.; McCarthy, R.; Rijssenbeek, M.; Schamberger, R. D.; Strauss, E.; Tsybychev, D.] SUNY Stony Brook, Stony Brook, NY 11794 USA.
[Begel, M.; Evdokimov, A.; Gadfort, T.; Patwa, A.; Pleier, M. -A.; Protopopescu, S.; Snyder, S.; Yip, K.] Brookhaven Natl Lab, Upton, NY 11973 USA.
[Snow, J.] Langston Univ, Langston, OK 73050 USA.
[Abbott, B.; Gutierrez, P.; Hossain, S.; Severini, H.; Skubic, P.; Strauss, M.; Svoisky, P.] Univ Oklahoma, Norman, OK 73019 USA.
[Hegab, H.; Khanov, A.; Rizatdinova, F.] Oklahoma State Univ, Stillwater, OK 74078 USA.
[Cho, D. K.; Cutts, D.; Heintz, U.; Jabeen, S.; Khatidze, D.; Landsberg, G.; Narain, M.; Pangilinan, M.; Parihar, V.; Partridge, R.; Yoo, H. D.] Brown Univ, Providence, RI 02912 USA.
[Brandt, A.; De, K.; Sosebee, M.; Spurlock, B.; White, A.; Yu, J.] Univ Texas Arlington, Arlington, TX 76019 USA.
[Kehoe, R.; Renkel, P.] So Methodist Univ, Dallas, TX 75275 USA.
[Chandra, A.; Corcoran, M.; Mackin, D.; Prewitt, M.] Rice Univ, Houston, TX 77005 USA.
[Buehler, M.; Hirosky, R.; Mulhearn, M.; Zelitch, S.] Univ Virginia, Charlottesville, VA 22901 USA.
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RP Abazov, VM (reprint author), Joint Inst Nucl Res, Dubna, Russia.
RI Li, Liang/O-1107-2015; Juste, Aurelio/I-2531-2015; Gutierrez,
Phillip/C-1161-2011; Bolton, Tim/A-7951-2012; Mercadante,
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bu, xuebing/D-1121-2012; Merkin, Mikhail/D-6809-2012; Dudko,
Lev/D-7127-2012; Perfilov, Maxim/E-1064-2012; Boos, Eduard/D-9748-2012;
Novaes, Sergio/D-3532-2012; Santos, Angelo/K-5552-2012; Fisher,
Wade/N-4491-2013; De, Kaushik/N-1953-2013; Ancu, Lucian
Stefan/F-1812-2010; Alves, Gilvan/C-4007-2013; Deliot,
Frederic/F-3321-2014; Sharyy, Viatcheslav/F-9057-2014; Lokajicek,
Milos/G-7800-2014; Kupco, Alexander/G-9713-2014; Kozelov,
Alexander/J-3812-2014; Christoudias, Theodoros/E-7305-2015; Guo,
Jun/O-5202-2015; Gerbaudo, Davide/J-4536-2012
OI Williams, Mark/0000-0001-5448-4213; Weber, Michele/0000-0002-2770-9031;
Grohsjean, Alexander/0000-0003-0748-8494; Melnychuk,
Oleksandr/0000-0002-2089-8685; Bassler, Ursula/0000-0002-9041-3057;
Price, Darren/0000-0003-2750-9977; Filthaut, Frank/0000-0003-3338-2247;
Bertram, Iain/0000-0003-4073-4941; Belanger-Champagne,
Camille/0000-0003-2368-2617; Begel, Michael/0000-0002-1634-4399;
Landsberg, Greg/0000-0002-4184-9380; Gershtein,
Yuri/0000-0002-4871-5449; Malik, Sudhir/0000-0002-6356-2655; Heredia De
La Cruz, Ivan/0000-0002-8133-6467; Evans, Harold/0000-0003-2183-3127;
Beuselinck, Raymond/0000-0003-2613-7446; Qian,
Jianming/0000-0003-4813-8167; Haas, Andrew/0000-0002-4832-0455; Li,
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Blessing, Susan/0000-0002-4455-7279; Duperrin,
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Theodoros/0000-0001-9050-3880; Guo, Jun/0000-0001-8125-9433; Gerbaudo,
Davide/0000-0002-4463-0878
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(Germany); SFI (Ireland); Swedish Research Council (Sweden); CAS
(China); CNSF (China)
FX We wish to thank C.-P. Yuan for fruitful discussions regarding this
analysis. We thank the staffs at Fermilab and collaborating
institutions, and acknowledge support from the DOE and NSF (USA); CEA
and CNRS/IN2P3 (France); FASI, Rosatom and RFBR (Russia); CNPq, FAPERJ,
FAPESP and FUNDUNESP (Brazil); DAE and DST (India); Colciencias
(Colombia); CONACyT (Mexico); KRF and KOSEF (Korea); CONICET and UBACyT
(Argentina); FOM (The Netherlands); STFC and the Royal Society (United
Kingdom); MSMT and GACR (Czech Republic); CRC Program and NSERC
(Canada); BMBF and DFG (Germany); SFI (Ireland); The Swedish Research
Council (Sweden); and CAS and CNSF (China).
NR 19
TC 27
Z9 27
U1 0
U2 6
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
EI 1079-7114
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD JAN 11
PY 2011
VL 106
IS 2
AR 022001
DI 10.1103/PhysRevLett.106.022001
PG 7
WC Physics, Multidisciplinary
SC Physics
GA 713OC
UT WOS:000286746300004
ER
PT J
AU Ha, SJ
Galazka, JM
Kim, SR
Choi, JH
Yang, XM
Seo, JH
Glass, NL
Cate, JHD
Jin, YS
AF Ha, Suk-Jin
Galazka, Jonathan M.
Kim, Soo Rin
Choi, Jin-Ho
Yang, Xiaomin
Seo, Jin-Ho
Glass, N. Louise
Cate, Jamie H. D.
Jin, Yong-Su
TI Engineered Saccharomyces cerevisiae capable of simultaneous cellobiose
and xylose fermentation
SO PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF
AMERICA
LA English
DT Article
DE biofuels; cellodextrin transporter; cofermentation; intracellular
beta-glucosidase
ID YEAST PICHIA-STIPITIS; ETHANOL-PRODUCTION; BETA-GLUCOSIDASE;
CO-FERMENTATION; EXPRESSION; REDUCTASE; BIOFUELS; XYL1; TRANSPORT; GENE
AB The use of plant biomass for biofuel production will require efficient utilization of the sugars in lignocellulose, primarily glucose and xylose. However, strains of Saccharomyces cerevisiae presently used in bioethanol production ferment glucose but not xylose. Yeasts engineered to ferment xylose do so slowly, and cannot utilize xylose until glucose is completely consumed. To overcome these bottlenecks, we engineered yeasts to coferment mixtures of xylose and cellobiose. In these yeast strains, hydrolysis of cellobiose takes place inside yeast cells through the action of an intracellular beta-glucosidase following import by a high-affinity cellodextrin transporter. Intracellular hydrolysis of cellobiose minimizes glucose repression of xylose fermentation allowing co-consumption of cellobiose and xylose. The resulting yeast strains, cofermented cellobiose and xylose simultaneously and exhibited improved ethanol yield when compared to fermentation with either cellobiose or xylose as sole carbon sources. We also observed improved yields and productivities from cofermentation experiments performed with simulated cellulosic hydrolyzates, suggesting this is a promising cofermentation strategy for cellulosic biofuel production. The successful integration of cellobiose and xylose fermentation pathways in yeast is a critical step towards enabling economic biofuel production.
C1 [Galazka, Jonathan M.; Cate, Jamie H. D.] Univ Calif Berkeley, Dept Mol & Cell Biol, Berkeley, CA 94720 USA.
[Ha, Suk-Jin; Kim, Soo Rin; Choi, Jin-Ho; Jin, Yong-Su] Univ Illinois, Dept Food Sci & Human Nutr, Urbana, IL 61801 USA.
[Ha, Suk-Jin; Kim, Soo Rin; Choi, Jin-Ho; Jin, Yong-Su] Univ Illinois, Inst Genom Biol, Urbana, IL 61801 USA.
[Yang, Xiaomin] BP Biofuels Business Unit, Berkeley, CA 94720 USA.
[Seo, Jin-Ho] Seoul Natl Univ, Dept Agr Biotechnol, Seoul 152742, South Korea.
[Glass, N. Louise] Univ Calif Berkeley, Dept Plant & Microbial Biol, Berkeley, CA 94720 USA.
[Cate, Jamie H. D.] Univ Calif Berkeley, Lawrence Berkeley Lab, Phys Biosci Div, Berkeley, CA 94720 USA.
RP Cate, JHD (reprint author), Univ Calif Berkeley, Dept Mol & Cell Biol, 229 Stanley Hall, Berkeley, CA 94720 USA.
EM jcate@lbl.gov; ysjin@illinois.edu
RI Galazka, Jonathan Galazka/K-4847-2012; Jin, Yong-Su/L-4530-2013; Jin-Ho,
Seo/B-3621-2014;
OI Galazka, Jonathan Galazka/0000-0002-4153-0249; Kim, Soo
Rin/0000-0001-5855-643X
FU Energy Biosciences Institute
FX The authors thank Dr. Huimin Zhao for sharing his preliminary results,
Dr. Isaac Cann for HPAEC analysis, and William Beeson for helpful
discussions. We also thank Dr. Thomas Jeffries for generously providing
P. stipitis CBS 6054. This work was supported by funding from Energy
Biosciences Institute to J.H.D.C. and Y.-S.J. Strain DA26-16 will be
deposited in the American Type Culture Collection.
NR 32
TC 197
Z9 206
U1 6
U2 65
PU NATL ACAD SCIENCES
PI WASHINGTON
PA 2101 CONSTITUTION AVE NW, WASHINGTON, DC 20418 USA
SN 0027-8424
J9 P NATL ACAD SCI USA
JI Proc. Natl. Acad. Sci. U. S. A.
PD JAN 11
PY 2011
VL 108
IS 2
BP 504
EP 509
DI 10.1073/pnas.1010456108
PG 6
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 704ZU
UT WOS:000286097700018
PM 21187422
ER
PT J
AU Laget, JM
AF Laget, J. M.
TI Unitarity constraints on neutral pion electroproduction
SO PHYSICS LETTERS B
LA English
DT Article
DE Exclusive photo-production; Regge poles and cuts
ID PHOTOPRODUCTION; MESONS; ENERGIES; OMEGA
AB At large virtuality Q(2), the coupling to the vector meson production channels provides us with a natural explanation of the surprisingly large cross section of the neutral pion electroproduction recently measured at Jefferson Laboratory, without destroying the good agreement between the Regge pole model and the data at the real photon point. Elastic rescattering of the pi(0) provides us with a way to explain why the node, that appears at t similar to -0.5 GeV(2) at the real photon point, disappears as soon as Q(2) differs from zero. (C) 2010 Elsevier B.V. All rights reserved.
C1 Thomas Jefferson Natl Accelerator Facil, Newport News, VA 23606 USA.
RP Laget, JM (reprint author), Thomas Jefferson Natl Accelerator Facil, Newport News, VA 23606 USA.
EM laget@jlab.org
FU United States Department of Energy [DE-AC05-06OR23177]
FX I acknowledge the warm hospitality at JLab where this work was
completed. Jefferson Science Associates operate Thomas Jefferson
National Facility for the United States Department of Energy under
contract DE-AC05-06OR23177.
NR 26
TC 4
Z9 4
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0370-2693
J9 PHYS LETT B
JI Phys. Lett. B
PD JAN 10
PY 2011
VL 695
IS 1-4
BP 199
EP 204
DI 10.1016/j.physletb.2010.11.014
PG 6
WC Astronomy & Astrophysics; Physics, Nuclear; Physics, Particles & Fields
SC Astronomy & Astrophysics; Physics
GA 713AZ
UT WOS:000286708700036
ER
PT J
AU Kang, ZB
Soffer, J
AF Kang, Zhong-Bo
Soffer, Jacques
TI Positivity bounds for Sivers functions
SO PHYSICS LETTERS B
LA English
DT Article
DE Positivity; Single spin asymmetry; Sivers function
ID SPIN PRODUCTION ASYMMETRIES; PARTON DISTRIBUTIONS; HARD-SCATTERING
AB We generalize a positivity constraint derived initially for parity-conserving processes to the parity-violating ones, and use it to derive non-trivial bounds on several Sivers functions, entering in the theoretical description of single spin asymmetry for various processes. (C) 2010 Elsevier B.V. All rights reserved.
C1 [Soffer, Jacques] Temple Univ, Dept Phys, Philadelphia, PA 19122 USA.
[Kang, Zhong-Bo] Brookhaven Natl Lab, RIKEN BNL Res Ctr, Upton, NY 11973 USA.
RP Soffer, J (reprint author), Temple Univ, Dept Phys, Philadelphia, PA 19122 USA.
EM zkang@bnl.gov; jacques.soffer@gmail.com
RI Kang, Zhongbo/P-3645-2014
FU RIKEN; Brookhaven National Laboratory; U.S. Department of Energy
[DE-AC02-98CH10886]
FX J.S. acknowledges some interesting discussions with X. Artru. We thank
A. Metz for helpful discussions and useful comments. Z.K. is grateful to
RIKEN, Brookhaven National Laboratory, and the U.S. Department of Energy
(Contract No. DE-AC02-98CH10886) for supporting this work.
NR 21
TC 5
Z9 5
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0370-2693
J9 PHYS LETT B
JI Phys. Lett. B
PD JAN 10
PY 2011
VL 695
IS 1-4
BP 275
EP 278
DI 10.1016/j.physletb.2010.11.045
PG 4
WC Astronomy & Astrophysics; Physics, Nuclear; Physics, Particles & Fields
SC Astronomy & Astrophysics; Physics
GA 713AZ
UT WOS:000286708700050
ER
PT J
AU Ehm, L
Borkowski, LA
Parise, JB
Ghose, S
Chen, Z
AF Ehm, L.
Borkowski, L. A.
Parise, J. B.
Ghose, S.
Chen, Z.
TI Evidence of tetragonal nanodomains in the high-pressure polymorph of
BaTiO3
SO APPLIED PHYSICS LETTERS
LA English
DT Article
ID BARIUM-TITANATE; SINGLE-CRYSTAL; CALIBRATION; RAMAN
AB The pressure induced P4mm -> Pm (3) over barm phase transition in BaTiO3 perovskite was investigated by x-ray total scattering. The evolution of the structure was analyzed by fitting pair distribution functions over a pressure range from ambient pressure up to 6.85(7) GPa. Evidence for the existence of tetragonal ferroelectric nanodomains at high pressure was found. The average size of the nanodomains in the high-pressure phase decreases with increasing pressure. Extrapolation of the domain size to pressures higher than studied experimentally suggests a disappearance of the ferroelectric domains at about 9.3(5) GPa and a cubic symmetry of BaTiO3 high-pressure phase. (C) 2011 American Institute of Physics. [doi:10.1063/1.3535611]
C1 [Ehm, L.; Borkowski, L. A.; Parise, J. B.; Chen, Z.] SUNY Stony Brook, Inst Mineral Phys, Stony Brook, NY 11794 USA.
[Ehm, L.; Parise, J. B.] Brookhaven Natl Lab, Natl Synchrotron Light Source, Upton, NY 11973 USA.
[Borkowski, L. A.; Parise, J. B.] SUNY Stony Brook, Dept Geosci, Stony Brook, NY 11794 USA.
[Ghose, S.] Brookhaven Natl Lab, Natl Synchrotron Light Source 2, Upton, NY 11973 USA.
RP Ehm, L (reprint author), SUNY Stony Brook, Inst Mineral Phys, Stony Brook, NY 11794 USA.
EM lars.ehm@stonybrook.edu
RI chen, zhiqiang/C-9134-2013
FU COMPRES, the Consortium for Materials Properties Research in Earth
Sciences, under NSF [EAR 06-49658]; U.S. Department of Energy, Office of
Science, Office of Basic Energy Sciences [DE-AC02-98CH10886]; National
Science Foundation [DMR-0800415]; Department of Energy [DE-SC0002510]
FX This research was partially supported by COMPRES, the Consortium for
Materials Properties Research in Earth Sciences, under NSF Cooperative
Agreement No. EAR 06-49658. Use of the National Synchrotron Light
Source, Brookhaven National Laboratory, was supported by the U.S.
Department of Energy, Office of Science, Office of Basic Energy
Sciences, under Contract No. DE-AC02-98CH10886. J.B.P. is grateful for
the support of the National Science Foundation through Grant No.
DMR-0800415 and the Department of Energy through Grant No. DE-SC0002510.
We would like to thank the anonymous reviewers for their comments on the
manuscript.
NR 29
TC 9
Z9 9
U1 2
U2 28
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0003-6951
J9 APPL PHYS LETT
JI Appl. Phys. Lett.
PD JAN 10
PY 2011
VL 98
IS 2
AR 021901
DI 10.1063/1.3535611
PG 3
WC Physics, Applied
SC Physics
GA 709VZ
UT WOS:000286470800020
ER
PT J
AU van Veenendaal, M
Liu, XS
Carpenter, MH
Cramer, SP
AF van Veenendaal, Michel
Liu, Xiaosong
Carpenter, Matthew H.
Cramer, Stephen P.
TI Observation of dd excitations in NiO and NiCl2 using K-edge resonant
inelastic x-ray scattering
SO PHYSICAL REVIEW B
LA English
DT Article
ID SPECTROSCOPY
AB The presence of dd excitations in K-edge resonant inelastic x-ray scattering in the 1s -> 4p region of transition-metal compounds and their excitation mechanism is established through measurements of NiO and NiCl2. It is demonstrated that the valence excitations are due to the interaction between the excited 4p electron and the 3d valence electrons. A detailed analytical framework for interpreting these excitations in transition-metal compounds is presented, demonstrating a strong angular dependence for different dd excitations.
C1 [van Veenendaal, Michel] No Illinois Univ, Dept Phys, De Kalb, IL 60115 USA.
[van Veenendaal, Michel] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA.
[Liu, Xiaosong; Cramer, Stephen P.] Univ Calif Berkeley, Lawrence Berkeley Lab, Phys Biosci Div, Berkeley, CA 94720 USA.
[Carpenter, Matthew H.; Cramer, Stephen P.] Univ Calif Davis, Dept Appl Sci, Davis, CA 95616 USA.
RP van Veenendaal, M (reprint author), No Illinois Univ, Dept Phys, De Kalb, IL 60115 USA.
RI Liu, Xiaosong/D-7564-2011
FU U.S. Department of Energy (DOE), Office of Basic Energy Sciences,
Division of Materials Sciences and Engineering [DE-FG02-03ER46097,
DE-AC02-06CH11357]; RIXS collaboration as part of the Computational
Materials Science Network (CMSN) [DE-FG02-08ER46540]; DOE OBER; NIH
[EB001962]
FX We acknowledge Yuri Shvyd'ko and Mary Upton for experimental support and
discussions with George Sawatzky and Jeroen van den Brink. M. v. V. was
supported by the U.S. Department of Energy (DOE), Office of Basic Energy
Sciences, Division of Materials Sciences and Engineering under Contract
No. DE-FG02-03ER46097 and the RIXS collaboration as part of the
Computational Materials Science Network (CMSN) under Grant No.
DE-FG02-08ER46540. The experimental work was supported by DOE OBER & NIH
EB001962. Work at Argonne National Laboratory was supported by the U.S.
DOE, Office of Science, Office of Basic Energy Sciences, under Contract
No. DE-AC02-06CH11357.
NR 23
TC 17
Z9 17
U1 1
U2 12
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
EI 1550-235X
J9 PHYS REV B
JI Phys. Rev. B
PD JAN 10
PY 2011
VL 83
IS 4
AR 045101
DI 10.1103/PhysRevB.83.045101
PG 6
WC Physics, Condensed Matter
SC Physics
GA 713WU
UT WOS:000286768900004
ER
PT J
AU Cisternas, M
Jahnke, K
Inskip, KJ
Kartaltepe, J
Koekemoer, AM
Lisker, T
Robaina, AR
Scodeggio, M
Sheth, K
Trump, JR
Andrae, R
Miyaji, T
Lusso, E
Brusa, M
Capak, P
Cappelluti, N
Civano, F
Ilbert, O
Impey, CD
Leauthaud, A
Lilly, SJ
Salvato, M
Scoville, NZ
Taniguchi, Y
AF Cisternas, Mauricio
Jahnke, Knud
Inskip, Katherine J.
Kartaltepe, Jeyhan
Koekemoer, Anton M.
Lisker, Thorsten
Robaina, Aday R.
Scodeggio, Marco
Sheth, Kartik
Trump, Jonathan R.
Andrae, Rene
Miyaji, Takamitsu
Lusso, Elisabeta
Brusa, Marcella
Capak, Peter
Cappelluti, Nico
Civano, Francesca
Ilbert, Olivier
Impey, Chris D.
Leauthaud, Alexie
Lilly, Simon J.
Salvato, Mara
Scoville, Nick Z.
Taniguchi, Yoshi
TI THE BULK OF THE BLACK HOLE GROWTH SINCE z similar to 1 OCCURS IN A
SECULAR UNIVERSE: NO MAJOR MERGER-AGN CONNECTION
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE galaxies: active; galaxies: evolution; galaxies: interactions; quasars:
general
ID ACTIVE GALACTIC NUCLEI; HUBBLE-SPACE-TELESCOPE; ULTRALUMINOUS INFRARED
GALAXIES; WIDE-FIELD SURVEY; DIGITAL-SKY-SURVEY; X-RAY; HOST GALAXIES;
COSMOS FIELD; MASSIVE GALAXIES; STAR-FORMATION
AB What is the relevance of major mergers and interactions as triggering mechanisms for active galactic nuclei (AGNs) activity? To answer this long-standing question, we analyze 140 XMM-Newton-selected AGN host galaxies and a matched control sample of 1264 inactive galaxies over z similar to 0.3-1.0 and M-* < 10(11.7) M-circle dot with high-resolution Hubble Space Telescope/Advanced Camera for Surveys imaging from the COSMOS field. The visual analysis of their morphologies by 10 independent human classifiers yields a measure of the fraction of distorted morphologies in the AGN and control samples, i.e., quantifying the signature of recent mergers which might potentially be responsible for fueling/triggering the AGN. We find that (1) the vast majority (>85%) of the AGN host galaxies do not show strong distortions and (2) there is no significant difference in the distortion fractions between active and inactive galaxies. Our findings provide the best direct evidence that, since z similar to 1, the bulk of black hole (BH) accretion has not been triggered by major galaxy mergers, therefore arguing that the alternative mechanisms, i.e., internal secular processes and minor interactions, are the leading triggers for the episodes of major BH growth. We also exclude an alternative interpretation of our results: a substantial time lag between merging and the observability of the AGN phase could wash out the most significant merging signatures, explaining the lack of enhancement of strong distortions on the AGN hosts. We show that this alternative scenario is unlikely due to (1) recent major mergers being ruled out for the majority of sources due to the high fraction of disk-hosted AGNs, (2) the lack of a significant X-ray signal in merging inactive galaxies as a signature of a potential buried AGN, and (3) the low levels of soft X-ray obscuration for AGNs hosted by interacting galaxies, in contrast to model predictions.
C1 [Cisternas, Mauricio; Jahnke, Knud; Inskip, Katherine J.; Robaina, Aday R.; Andrae, Rene] Max Planck Inst Astron, D-69117 Heidelberg, Germany.
[Kartaltepe, Jeyhan] Natl Opt Astron Observ, Tucson, AZ 85721 USA.
[Koekemoer, Anton M.] Space Telescope Sci Inst, Baltimore, MD 21218 USA.
[Lisker, Thorsten] Univ Heidelberg, Astron Rech Inst, Zentrum Astron, D-69120 Heidelberg, Germany.
[Robaina, Aday R.] Univ Barcelona IEEC, ICC, E-08028 Barcelona, Spain.
[Scodeggio, Marco] IASF INAF, I-20133 Milan, Italy.
[Sheth, Kartik] CALTECH, Spitzer Space Ctr, Pasadena, CA 91125 USA.
[Trump, Jonathan R.; Impey, Chris D.] Univ Arizona, Steward Observ, Tucson, AZ 85721 USA.
[Miyaji, Takamitsu] Univ Nacl Autonoma Mexico, Inst Astron, Ensenada, Baja California, Mexico.
[Miyaji, Takamitsu] Univ Calif San Diego, Ctr Astrophys & Space Sci, La Jolla, CA 92093 USA.
[Lusso, Elisabeta] INAF Osservatorio Astron Bologna, I-40127 Bologna, Italy.
[Brusa, Marcella; Cappelluti, Nico] Max Planck Inst Extraterr Phys, D-85748 Garching, Germany.
[Civano, Francesca] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA.
[Ilbert, Olivier] Lab Astrophys Marseille, F-13376 Marseille 12, France.
[Leauthaud, Alexie] Univ Calif Berkeley, LBNL, Berkeley, CA 94720 USA.
[Leauthaud, Alexie] Univ Calif Berkeley, Berkeley Ctr Cosmol Phys, Berkeley, CA 94720 USA.
[Lilly, Simon J.] ETH, Dept Phys, CH-8093 Zurich, Switzerland.
[Salvato, Mara] Max Planck Inst Plasma Phys, D-85741 Garching, Germany.
[Taniguchi, Yoshi] Ehime Univ, Res Ctr Space & Cosm Evolut, Matsuyama, Ehime 7908577, Japan.
RP Cisternas, M (reprint author), Max Planck Inst Astron, Konigstuhl 17, D-69117 Heidelberg, Germany.
EM cisternas@mpia.de
OI Scodeggio, Marco/0000-0002-2282-5850; Jahnke, Knud/0000-0003-3804-2137;
Cappelluti, Nico/0000-0002-1697-186X; Koekemoer,
Anton/0000-0002-6610-2048
FU NASA [NAS 5-26555]; ESA
FX Based on observations with the NASA/ESA Hubble Space Telescope, obtained
at the Space Telescope Science Institute, which is operated by AURA
Inc., under NASA contract NAS 5-26555; the XMM-Newton, an ESA science
mission with instruments and contributions directly funded by ESA Member
States and NASA; European Southern Observatory under Large Program
175.A-0839; and the Subaru Telescope, which is operated by the National
Astronomical Observatory of Japan.
NR 144
TC 174
Z9 174
U1 1
U2 10
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0004-637X
J9 ASTROPHYS J
JI Astrophys. J.
PD JAN 10
PY 2011
VL 726
IS 2
AR 57
DI 10.1088/0004-637X/726/2/57
PG 14
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 698WB
UT WOS:000285623600001
ER
PT J
AU Rucker, DF
Noonan, GE
Greenwood, WJ
AF Rucker, Dale F.
Noonan, Gillian E.
Greenwood, William J.
TI Electrical resistivity in support of geological mapping along the Panama
Canal
SO ENGINEERING GEOLOGY
LA English
DT Article
DE Geophysics; Panama Canal; Resistivity; Geological mapping; Dredging
ID SUBMARINE GROUNDWATER DISCHARGE; WATER; MIOCENE; BAY; BOUNDARY; ARC;
DEFORMATION; MICROPLATE; AMERICA; AREA
AB Dredging and widening of the Panama Canal is currently being conducted to allow larger vessels to transit to and from the Americas. Asia, and Europe. Dredging efficiency relies heavily on knowledge of the types and volumes of sediments and rocks beneath the waterway to ensure the right equipment is used for their removal. To aid this process, a waterborne streaming electrical resistivity survey was conducted along the entire length of the canal to provide information on its geology. Within the confines of the canal, a total of 663 line-kilometers of electrical resistivity data were acquired using the dipole-dipole array. The support of the survey data for dredging activities was realized by calibrating and qualitatively correlating the resistivity data with information obtained from nearby logged boreholes and geological maps. The continuity of specific strata was determined in the resistivity sections by evaluating the continuity of similar ranges of resistivity values between boreholes. It was evident that differing geological units and successions can have similar ranges of resistivity values. For example, Quaternary sandy and gravelly alluvial fill from the former river channel of the Chagres River had similar resistivity ranges (generally from 40 to 250 Si m) to those characteristic of late Miocene basalt dikes (from 100 to 400 Omega m), but for quite different reasons. Similarly, competent marine-based sedimentary rocks of the Caimito Formation were similar in resistivity values (ranging from 0.7 to 10 Omega m) to sandstone conglomerate of the Bohio Formation. Consequently, it would be difficult to use the resistivity data alone to extrapolate more complex geotechnical parameters, such as the hardness or strength of the substrate. A necessary component for such analyses requires detailed objective information regarding the specific context from which the geotechnical parameters were derived. If these data from cored boreholes and detailed geological surveys are taken into account, however, then waterborne streaming resistivity surveying can be a powerful tool. In this case, it provided inexpensive and highly resolved quantitative information on the potential volume of loose suctionable material along the Gamboa Sub-reach, which could enable large cost savings to be made on a major engineering project involving modification of one of the most important navigable waterways in the world. (C) 2010 Elsevier B.V. All rights reserved.
C1 [Rucker, Dale F.; Noonan, Gillian E.] HydroGEOPHYSICS Inc, Tucson, AZ 85745 USA.
[Greenwood, William J.] Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Rucker, DF (reprint author), HydroGEOPHYSICS Inc, 2302 N Forbes Blvd, Tucson, AZ 85745 USA.
EM druck8240@gmail.com; gnoonan@hgiworld.com; william.greenwood@pnl.gov
OI Rucker, Dale/0000-0002-8930-2747
NR 48
TC 21
Z9 23
U1 2
U2 16
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0013-7952
J9 ENG GEOL
JI Eng. Geol.
PD JAN 10
PY 2011
VL 117
IS 1-2
BP 121
EP 133
DI 10.1016/j.enggeo.2010.10.012
PG 13
WC Engineering, Geological; Geosciences, Multidisciplinary
SC Engineering; Geology
GA 715AP
UT WOS:000286853100013
ER
PT J
AU Tsyusko, O
Glenn, T
Yi, Y
Joice, G
Jones, K
Aizawa, K
Coughlin, D
Zimbrick, J
Hinton, T
AF Tsyusko, O.
Glenn, T.
Yi, Y.
Joice, G.
Jones, K.
Aizawa, K.
Coughlin, D.
Zimbrick, J.
Hinton, T.
TI Differential genetic responses to ionizing irradiation in individual
families of Japanese medaka, Oryzias latipes
SO MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS
LA English
DT Article
DE Radiation; Germline mutations; Individual response; Microsatellites;
Medaka; Transgenerational
ID INDUCED TRANSGENERATIONAL INSTABILITY; TANDEM REPEAT INSTABILITY; F-1
MICE BORN; GENOMIC INSTABILITY; GERMLINE MUTATION; RADIATION; DNA; LOCI;
RATES; LINE
AB Although no statistically significant hereditary effects have yet been detected in the children of survivors from the atomic bombings in Hiroshima and Nagasaki, recent animal studies have found that exposure to ionizing radiation can cause genomic and epigenomic instability in the exposed individuals, as well as their offspring, and therefore, may have much larger genetic effects than predicted by earlier studies. When individuals are exposed to various environmental insults, including radiation, individual sensitivity to the insults often varies. Variance in germ-line response to radiation among individuals has been widely recognized, but it is difficult to address due to the use of inbred strains and the limited number of offspring that can be produced by a pair of mice, the common model used to study genetic effects of radiation. Herein is the first study to examine individual family responses to ionizing radiation using a parent-pedigree approach in an outbred strain of a vertebrate model, the Japanese medaka fish. Changes in frequencies of radiation-induced germline mutations at nine microsatellite loci were examined in the same families before and after exposure to one of four acute doses of ionizing radiation (0.1, 0.5, 2.5, 5 Gy, plus sham-exposed controls). Families varied significantly in pre-exposure mutation frequencies and responses to irradiation, but germline mutations were elevated in at least one family after 0.1, 0.5, and 5 Gy exposures. Variance among individuals in sensitivity to radiation is well documented for many endpoints, and our work now extends these endpoints to include germ-line mutations. Further studies are needed to elucidate dose response, effects at varying stages of spermatogenesis, and the mechanisms underlying the variance in these individual responses to radiation. (C) 2010 Elsevier B.V. All rights reserved.
C1 [Tsyusko, O.] Univ Kentucky, Dept Plant & Soil Sci, Agr Sci Ctr N, Lexington, KY 40546 USA.
[Glenn, T.; Jones, K.] Univ Georgia, Environm Hlth Sci & Georgia Genom Facil, Athens, GA 30602 USA.
[Yi, Y.; Aizawa, K.; Coughlin, D.; Hinton, T.] Univ Georgia, Savannah River Ecol Lab, Aiken, SC 29802 USA.
[Zimbrick, J.] Colorado State Univ, Dept Environm & Radiol Hlth Sci, Ft Collins, CO 80523 USA.
[Hinton, T.] Inst Radiat Protect & Nucl Safety, St Paul Les Durance, France.
RP Tsyusko, O (reprint author), Univ Kentucky, Dept Plant & Soil Sci, Agr Sci Ctr N, 1100 S Limestone, Lexington, KY 40546 USA.
EM olga.tsyusko@uky.edu
OI Tsyusko, Olga/0000-0001-8196-1062
FU U.S. Department of Energy (DOE) [DE-FG02-05ER64087]; University of
Georgia Research Foundation [DE-FC09-07SR22506]
FX We thank Maureen Peters, Tracey Tuberville and Elizabeth Burgess for
assisting with DNA extractions and Fred Ogden and Cecilia Watson for
help with the radiation exposure. The work was supported by U.S.
Department of Energy (DOE) Grant No. DE-FG02-05ER64087 to Colorado State
University and the University of Georgia Research Foundation and
DE-FC09-07SR22506 which supported the University of Georgia's Savannah
River Ecology Laboratory.
NR 35
TC 9
Z9 9
U1 1
U2 7
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 1383-5718
J9 MUTAT RES-GEN TOX EN
JI Mutat. Res. Genet. Toxicol. Environ. Mutagen.
PD JAN 10
PY 2011
VL 718
IS 1-2
BP 18
EP 23
DI 10.1016/j.mrgentox.2010.11.001
PG 6
WC Biotechnology & Applied Microbiology; Genetics & Heredity; Toxicology
SC Biotechnology & Applied Microbiology; Genetics & Heredity; Toxicology
GA 718LR
UT WOS:000287123500003
PM 21075215
ER
PT J
AU Chaudhury, RP
Ye, F
Fernandez-Baca, JA
Lorenz, B
Wang, YQ
Sun, YY
Mook, HA
Chu, CW
AF Chaudhury, R. P.
Ye, F.
Fernandez-Baca, J. A.
Lorenz, B.
Wang, Y. Q.
Sun, Y. Y.
Mook, H. A.
Chu, C. W.
TI Robust ferroelectric state in multiferroic Mn1-xZnxWO4
SO PHYSICAL REVIEW B
LA English
DT Article
ID NEUTRON-DIFFRACTION; MAGNETIC PHASES; MNWO4; TRANSITIONS; PRESSURE;
NI3V2O8
AB We report on the remarkably robust ferroelectric state in the multiferroic compound Mn1-xZnxWO4. Substitution of the magnetic Mn2+ with nonmagnetic Zn2+ reduces the magnetic exchange and provides control of the various magnetic and multiferroic states of MnWO4. Only 5% of Zn substitution results in complete suppression of the frustrated collinear (paraelectric) low-temperature phase. The helical magnetic and ferroelectric phase develops as the ground state. The multiferroic state is stable up to a high level of substitution of more than 50%. The magnetic, thermodynamic, and dielectric properties, as well as the ferroelectric polarization of single crystals of Mn1-xZnxWO4, are studied for different substitutions up to x = 0.5. The magnetic phases have been identified in single-crystal neutron-scattering experiments. The ferroelectric polarization scales with the neutron intensity of the incommensurate peak of the helical phase.
C1 [Chaudhury, R. P.; Lorenz, B.; Wang, Y. Q.; Sun, Y. Y.; Chu, C. W.] Univ Houston, Texas Ctr Superconduct, Houston, TX 77204 USA.
[Chaudhury, R. P.; Lorenz, B.; Wang, Y. Q.; Sun, Y. Y.; Chu, C. W.] Univ Houston, Dept Phys, Houston, TX 77204 USA.
[Ye, F.; Fernandez-Baca, J. A.; Mook, H. A.] Oak Ridge Natl Lab, Neutron Scattering Sci Div, Oak Ridge, TN 37831 USA.
[Fernandez-Baca, J. A.] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA.
[Chu, C. W.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
RP Chaudhury, RP (reprint author), Univ Houston, Texas Ctr Superconduct, Houston, TX 77204 USA.
RI Ye, Feng/B-3210-2010; Fernandez-Baca, Jaime/C-3984-2014
OI Ye, Feng/0000-0001-7477-4648; Fernandez-Baca, Jaime/0000-0001-9080-5096
FU T.L.L. Temple Foundation; J. J. and R. Moores Endowment; State of Texas
through TCSUH; LBNL through the US DOE [DE-AC03-76SF00098]; Scientific
User Facilities, Office of Basic Energy Sciences, US Department of
Energy
FX This work is supported in part by the T.L.L. Temple Foundation, the J.
J. and R. Moores Endowment, and the State of Texas through TCSUH and at
LBNL through the US DOE, Contract No. DE-AC03-76SF00098. The research at
Oak Ridge National Laboratory's High Flux Isotope Reactor was sponsored
by the Scientific User Facilities, Office of Basic Energy Sciences, US
Department of Energy.
NR 45
TC 36
Z9 36
U1 1
U2 11
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD JAN 10
PY 2011
VL 83
IS 1
AR 014401
DI 10.1103/PhysRevB.83.014401
PG 6
WC Physics, Condensed Matter
SC Physics
GA 713KW
UT WOS:000286737900004
ER
PT J
AU Zhao, R
Zhang, L
Zhou, J
Koschny, T
Soukoulis, CM
AF Zhao, R.
Zhang, L.
Zhou, J.
Koschny, Th.
Soukoulis, C. M.
TI Conjugated gammadion chiral metamaterial with uniaxial optical activity
and negative refractive index
SO PHYSICAL REVIEW B
LA English
DT Article
ID PARAMETERS; RETRIEVAL
AB We demonstrate numerically and experimentally a conjugated gammadion chiral metamaterial that uniaxially exhibits huge optical activity and circular dichroism, and gives a negative refractive index. This chiral design provides smaller unit cell size and larger chirality compared with other published planar designs. Experiments are performed at GHz frequencies (around 6 GHz) and are in good agreement with the numerical simulations.
C1 [Zhao, R.; Zhang, L.; Koschny, Th.; Soukoulis, C. M.] Iowa State Univ, Ames Lab, Ames, IA 50011 USA.
[Zhao, R.; Zhang, L.; Koschny, Th.; Soukoulis, C. M.] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA.
[Zhao, R.] Beijing Normal Univ, Dept Phys, Appl Opt Beijing Area Major Lab, Beijing 100875, Peoples R China.
[Zhou, J.] Los Alamos Natl Lab, Ctr Integrated Nanotechnol, Mat Phys & Applicat Div, Los Alamos, NM 87545 USA.
[Koschny, Th.; Soukoulis, C. M.] Univ Crete, Inst Elect Struct & Laser, Fdn Res & Technol Hellas FORTH, Dept Mat Sci & Technol, Iraklion 71110, Crete, Greece.
RP Zhao, R (reprint author), Iowa State Univ, Ames Lab, Ames, IA 50011 USA.
RI Zhao, Rongkuo/B-5731-2008; Soukoulis, Costas/A-5295-2008; Zhou,
Jiangfeng/D-4292-2009
OI Zhou, Jiangfeng/0000-0002-6958-3342
FU Department of Energy (Basic Energy Sciences) [DE-AC02-07CH11358];
European Community [213390]; Department of Navy, Office of Naval
Research [N000141010925]; China Scholarship Council (CSC)
FX Work at Ames Laboratory was supported by the Department of Energy (Basic
Energy Sciences) under Contract No. DE-AC02-07CH11358. This work was
partially supported by the European Community FET project PHOME
(Contract No. 213390) and by the Department of Navy, Office of Naval
Research (Grant No. N000141010925). R.Z. acknowledges the China
Scholarship Council (CSC) for financial support.
NR 22
TC 100
Z9 100
U1 3
U2 36
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD JAN 10
PY 2011
VL 83
IS 3
AR 035105
DI 10.1103/PhysRevB.83.035105
PG 4
WC Physics, Condensed Matter
SC Physics
GA 713VL
UT WOS:000286765400005
ER
PT J
AU Kaczmarek, O
Karsch, F
Laermann, E
Miao, C
Mukherjee, S
Petreczky, P
Schmidt, C
Soeldner, W
Unger, W
AF Kaczmarek, O.
Karsch, F.
Laermann, E.
Miao, C.
Mukherjee, S.
Petreczky, P.
Schmidt, C.
Soeldner, W.
Unger, W.
TI Phase boundary for the chiral transition in (2+1)-flavor QCD at small
values of the chemical potential
SO PHYSICAL REVIEW D
LA English
DT Article
ID SCALING FUNCTIONS; DIAGRAM; O(4)
AB We determine the chiral phase transition line in (2 + 1)-flavor QCD for small values of the light quark chemical potential. We show that for small values of the chemical potential the curvature of the phase transition line can be deduced from an analysis of scaling properties of the chiral condensate and its susceptibilities. To do so we extend earlier studies of the magnetic equation of state in (2 + 1)-flavor QCD to finer lattice spacings, aT = 1/8. We use these universal scaling properties of the chiral order parameter to extract the curvature of the transition line at two values of the cutoff, aT = 1/4 and 1/8. We find that cutoff effects are small for the curvature parameter and determine the transition line in the chiral limit to leading order in the light quark chemical potential. We obtain T-c(mu(q))/T-c(0) = 1 - 0.059(2)(4)(mu(q)/T)(2) + O(mu(4)(q)).
C1 [Kaczmarek, O.; Karsch, F.; Laermann, E.; Unger, W.] Univ Bielefeld, Fak Phys, D-33615 Bielefeld, Germany.
[Karsch, F.; Miao, C.; Mukherjee, S.; Petreczky, P.] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA.
[Schmidt, C.; Soeldner, W.] Goethe Univ Frankfurt, Frankfurt Inst Adv Studies, D-60438 Frankfurt, Germany.
[Schmidt, C.; Soeldner, W.] GSI Helmholtzzentrum Schwerionenforsch, D-64291 Darmstadt, Germany.
[Unger, W.] Swiss Fed Inst Technol, Inst Theoret Phys, CH-8093 Zurich, Switzerland.
RP Kaczmarek, O (reprint author), Univ Bielefeld, Fak Phys, D-33615 Bielefeld, Germany.
RI Kaczmarek, Olaf/E-9932-2011;
OI Mukherjee, Swagato/0000-0002-3824-1008; Schmidt,
Christian/0000-0002-9071-4757
FU U.S. Department of Energy [DE-AC02-98CH10886]; BMBF [06BI401];
Gesellschaft fur Schwerionenforschung [BILAER]; Extreme Matter Institute
[HA216/EMMI]; Deutsche Forschungsgemeinschaft [GRK 881]; Helmholtz
International Center for FAIR
FX This work has been supported in part by Contract No. DE-AC02-98CH10886
with the U.S. Department of Energy, the BMBF under Grant No. 06BI401,
the Gesellschaft fur Schwerionenforschung under Grant No. BILAER, the
Extreme Matter Institute under Grant No. HA216/EMMI and the Deutsche
Forschungsgemeinschaft under Grant No. GRK 881. C. S. has been partially
supported through the Helmholtz International Center for FAIR which is
part of the Hessian LOEWE initiative. Numerical simulations have been
performed on the BlueGene/L at the New York Center for Computational
Sciences (NYCCS) which is supported by the U. S. Department of Energy
and by the State of New York, the GPU cluster of USQCD at Jefferson
Laboratory, the GPU cluster SCOUT at the Center for Scientific Computing
(CSC) at Frankfurt University, as well as the John von Neumann
Supercomputer center (NIC) at FZ-Julich, Germany. We thank M. Bach for
his help in developing the CUDA based programs used for our data
analysis on GPU clusters.
NR 26
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U1 0
U2 3
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 2470-0010
EI 2470-0029
J9 PHYS REV D
JI Phys. Rev. D
PD JAN 10
PY 2011
VL 83
IS 1
AR 014504
DI 10.1103/PhysRevD.83.014504
PG 9
WC Astronomy & Astrophysics; Physics, Particles & Fields
SC Astronomy & Astrophysics; Physics
GA 713TV
UT WOS:000286761200003
ER
PT J
AU Behnke, E
Behnke, J
Brice, SJ
Broemmelsiek, D
Collar, JI
Cooper, PS
Crisler, M
Dahl, CE
Fustin, D
Hall, J
Hinnefeld, JH
Hu, M
Levine, I
Ramberg, E
Shepherd, T
Sonnenschein, A
Szydagis, M
AF Behnke, E.
Behnke, J.
Brice, S. J.
Broemmelsiek, D.
Collar, J. I.
Cooper, P. S.
Crisler, M.
Dahl, C. E.
Fustin, D.
Hall, J.
Hinnefeld, J. H.
Hu, M.
Levine, I.
Ramberg, E.
Shepherd, T.
Sonnenschein, A.
Szydagis, M.
CA Collaboration, C
TI Improved Limits on Spin-Dependent WIMP-Proton Interactions from a Two
Liter CF3I Bubble Chamber
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID DARK-MATTER CANDIDATES
AB Data from the operation of a bubble chamber filled with 3.5 kg of CF3I in a shallow underground site are reported. An analysis of ultrasound signals accompanying bubble nucleations confirms that alpha decays generate a significantly louder acoustic emission than single nuclear recoils, leading to an efficient background discrimination. Three dark matter candidate events were observed during an effective exposure of 28.1 kg day, consistent with a neutron background. This observation provides strong direct detection constraints on weakly interacting massive particle (WIMP)-proton spin-dependent scattering for WIMP masses >20 GeV/c(2).
C1 [Behnke, E.; Behnke, J.; Hinnefeld, J. H.; Levine, I.; Shepherd, T.] Indiana Univ, South Bend, IN 46615 USA.
[Brice, S. J.; Broemmelsiek, D.; Cooper, P. S.; Crisler, M.; Hall, J.; Hu, M.; Ramberg, E.; Sonnenschein, A.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
[Collar, J. I.; Dahl, C. E.; Fustin, D.; Szydagis, M.] Univ Chicago, Enrico Fermi Inst, KICP, Chicago, IL 60637 USA.
[Collar, J. I.; Dahl, C. E.; Fustin, D.; Szydagis, M.] Univ Chicago, Dept Phys, Chicago, IL 60637 USA.
RP Behnke, E (reprint author), Indiana Univ, South Bend, IN 46615 USA.
EM cdahl@kicp.uchicago.edu; jeter@fnal.gov
RI Hall, Jeter/F-6108-2013;
OI Szydagis, Matthew/0000-0002-9334-4659
FU Fermi National Accelerator Laboratory; Department of Energy; National
Science Foundation [PHY-0856273, PHY-0555472, PHY-0937500, PHY-0919526]
FX We would like to thank Fermi National Accelerator Laboratory, the
Department of Energy, and the National Science Foundation for their
support including Grants No. PHY-0856273, No. PHY-0555472, No.
PHY-0937500, and No. PHY-0919526. We acknowledge technical assistance
from Fermilab's Computing, Particle Physics, and Accelerator Divisions,
and from E. Greiner, P. Marks, B. Sweeney, and A. Vollrath at IUSB.
NR 22
TC 106
Z9 107
U1 0
U2 4
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD JAN 10
PY 2011
VL 106
IS 2
AR 021303
DI 10.1103/PhysRevLett.106.021303
PG 4
WC Physics, Multidisciplinary
SC Physics
GA 713PB
UT WOS:000286748800008
PM 21405218
ER
PT J
AU Dominguez, F
Xiao, BW
Yuan, F
AF Dominguez, Fabio
Xiao, Bo-Wen
Yuan, Feng
TI k(t) Factorization for Hard Processes in Nuclei
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID GLUON DISTRIBUTION-FUNCTIONS; DEUTERON-GOLD COLLISIONS; AZIMUTHAL
CORRELATIONS; PA-COLLISIONS; QUARK; GLASS
AB Two widely proposed k(t)-dependent gluon distributions in the small-x saturation regime are investigated using two-particle back-to-back correlations in high energy scattering processes. The Weizsacker-Williams gluon distribution, interpreted as the number density of gluon inside nucleus, is studied in the quark-antiquark jet correlation in deep inelastic scattering. On the other hand, the unintegrated gluon distribution, defined as the Fourier transform of the color-dipole cross section, is probed in the direct photon-jet correlation in pA collisions.
C1 [Dominguez, Fabio] Columbia Univ, Dept Phys, New York, NY 10027 USA.
[Xiao, Bo-Wen; Yuan, Feng] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Nucl Sci, Berkeley, CA 94720 USA.
[Xiao, Bo-Wen] Penn State Univ, Dept Phys, University Pk, PA 16802 USA.
[Yuan, Feng] Brookhaven Natl Lab, RIKEN BNL Res Ctr, Upton, NY 11973 USA.
RP Dominguez, F (reprint author), Columbia Univ, Dept Phys, 538 W 120th St, New York, NY 10027 USA.
RI Yuan, Feng/N-4175-2013
FU U.S. Department of Energy [DE-AC02-05CH11231, DE-AC02-98CH10886]; RIKEN;
Brookhaven National Laboratory
FX We thank Al Mueller for stimulating discussions and critical reading of
the manuscript. We thank Larry McLerran, Jianwei Qiu, and Raju
Venugopalan for helpful conversations. We also thank Cyrille Marquet for
his collaborations at the early stage of this work. This work was
supported in part by the U.S. Department of Energy under contracts
DE-AC02-05CH11231. We are grateful to RIKEN, Brookhaven National
Laboratory and the U.S. Department of Energy (contract number
DE-AC02-98CH10886) for providing the facilities essential for the
completion of this work.
NR 38
TC 58
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U1 0
U2 1
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD JAN 10
PY 2011
VL 106
IS 2
AR 022301
DI 10.1103/PhysRevLett.106.022301
PG 4
WC Physics, Multidisciplinary
SC Physics
GA 713PB
UT WOS:000286748800010
PM 21405223
ER
PT J
AU Lopez, N
Reichertz, LA
Yu, KM
Campman, K
Walukiewicz, W
AF Lopez, N.
Reichertz, L. A.
Yu, K. M.
Campman, K.
Walukiewicz, W.
TI Engineering the Electronic Band Structure for Multiband Solar Cells
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID DOT INTERMEDIATE-BAND; EFFICIENCY; ALLOYS; SEMICONDUCTORS; NITROGEN;
LIMIT; GAP
AB Using the unique features of the electronic band structure of GaNxAs1-x alloys, we have designed, fabricated and tested a multiband photovoltaic device. The device demonstrates an optical activity of three energy bands that absorb, and convert into electrical current, the crucial part of the solar spectrum. The performance of the device and measurements of electroluminescence, quantum efficiency and photo-modulated reflectivity are analyzed in terms of the band anticrossing model of the electronic structure of highly mismatched alloys. The results demonstrate the feasibility of using highly mismatched alloys to engineer the semiconductor energy band structure for specific device applications.
C1 [Lopez, N.; Reichertz, L. A.; Yu, K. M.; Walukiewicz, W.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA.
[Reichertz, L. A.; Walukiewicz, W.] Rose St Labs Energy, Phoenix, AZ 85034 USA.
[Campman, K.] Sumika Elect Mat Inc, Phoenix, AZ 85034 USA.
RP Lopez, N (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, 1 Cyclotron Rd, Berkeley, CA 94720 USA.
RI Yu, Kin Man/J-1399-2012; Lopez Martinez, Nair/M-2933-2014
OI Yu, Kin Man/0000-0003-1350-9642; Lopez Martinez,
Nair/0000-0001-6510-1329
FU Office of Science, Office of Basic Energy Sciences, Materials Sciences
and Engineering Division, of the U.S. Department of Energy
[DE-AC02-05CH11231]; Ministerio de Ciencia e Innovacion of the Spanish
Government
FX Material growth and device design and fabrication were supported by
RoseStreet Labs Energy. The EL work performed at LBNL was supported by
the Director, Office of Science, Office of Basic Energy Sciences,
Materials Sciences and Engineering Division, of the U.S. Department of
Energy under Contract No. DE-AC02-05CH11231. N. Lopez also acknowledges
the financial support of the Ministerio de Ciencia e Innovacion of the
Spanish Government.
NR 27
TC 157
Z9 165
U1 12
U2 98
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
EI 1079-7114
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD JAN 10
PY 2011
VL 106
IS 2
AR 028701
DI 10.1103/PhysRevLett.106.028701
PG 4
WC Physics, Multidisciplinary
SC Physics
GA 713PB
UT WOS:000286748800020
PM 21405256
ER
PT J
AU Sadigh, B
Erhart, P
Aberg, D
Trave, A
Schwegler, E
Bude, J
AF Sadigh, B.
Erhart, P.
Aberg, D.
Trave, A.
Schwegler, E.
Bude, J.
TI First-Principles Calculations of the Urbach Tail in the Optical
Absorption Spectra of Silica Glass
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID INITIO MOLECULAR-DYNAMICS; TOTAL-ENERGY CALCULATIONS; WAVE BASIS-SET;
BAND TAILS; SEMICONDUCTORS; APPROXIMATION; GERMANIUM; METALS; GE
AB We present density-functional theory calculations of the optical absorption spectra of silica glass for temperatures up to 2400 K. The calculated spectra exhibit exponential tails near the fundamental absorption edge that follow the Urbach rule in good agreement with experiments. We discuss the accuracy of our results by comparing to hybrid exchange correlation functionals. We show that the Urbach rule holds in a frequency interval where optical absorption is Poisson distributed with very large statistical fluctuations. In this regime, a direct relation between the optical absorption coefficient and electronic density of states is derived, which provides a link between photoemission and absorption spectra and is used to determine the lower bound to the Urbach frequency regime.
C1 [Sadigh, B.; Erhart, P.; Aberg, D.; Trave, A.; Schwegler, E.; Bude, J.] Lawrence Livermore Natl Lab, Chem Mat & Life Sci Directorate, Livermore, CA 94550 USA.
RP Sadigh, B (reprint author), Lawrence Livermore Natl Lab, Chem Mat & Life Sci Directorate, Livermore, CA 94550 USA.
RI Erhart, Paul/G-6260-2011; Schwegler, Eric/A-2436-2016;
OI Erhart, Paul/0000-0002-2516-6061; Schwegler, Eric/0000-0003-3635-7418;
Aberg, Daniel/0000-0003-4364-9419
FU U.S. Department of Energy by Lawrence Livermore National Laboratory
[DE-AC52-07NA27344]
FX This work was performed under the auspices of the U.S. Department of
Energy by Lawrence Livermore National Laboratory under Contract No.
DE-AC52-07NA27344 with support from the Laboratory Directed Research and
Development Program.
NR 33
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U1 3
U2 31
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD JAN 10
PY 2011
VL 106
IS 2
AR 027401
DI 10.1103/PhysRevLett.106.027401
PG 4
WC Physics, Multidisciplinary
SC Physics
GA 713PB
UT WOS:000286748800017
PM 21405249
ER
PT J
AU Abazov, VM
Abbott, B
Abolins, M
Acharya, BS
Adams, M
Adams, T
Alexeev, GD
Alkhazov, G
Alton, A
Alverson, G
Alves, GA
Ancu, LS
Aoki, M
Arnoud, Y
Arov, M
Askew, A
Asman, B
Atramentov, O
Avila, C
BackusMayes, J
Badaud, F
Bagby, L
Baldin, B
Bandurin, DV
Banerjee, S
Barberis, E
Barfuss, AF
Baringer, P
Barreto, J
Bartlett, JF
Bassler, U
Beale, S
Bean, A
Begalli, M
Begel, M
Belanger-Champagne, C
Bellantoni, L
Benitez, JA
Beri, SB
Bernardi, G
Bernhard, R
Bertram, I
Besancon, M
Beuselinck, R
Bezzubov, VA
Bhat, PC
Bhatnagar, V
Blazey, G
Blessing, S
Bloom, K
Boehnlein, A
Bonline, D
Bolton, TA
Boos, EE
Borissov, G
Bose, T
Brandt, A
Brandt, O
Brock, R
Brooijmans, G
Bross, A
Brown, D
Bu, XB
Buchholz, D
Buehler, M
Buescher, V
Bunichev, V
Burdin, S
Burnett, TH
Buszello, CP
Calfayan, R
Calpas, B
Calvet, S
Camacho-Perez, E
Cammin, J
Carrasco-Lizarraga, MA
Carrera, E
Casey, BCK
Castilla-Valdez, H
Chakrabarti, S
Chakraborty, D
Chan, KM
Chandra, A
Chen, G
Chevalier-Thery, S
Cho, DK
Cho, SW
Choi, S
Choudhary, B
Christoudias, T
Cihangir, S
Claes, D
Clutter, J
Cooke, M
Cooper, WE
Corcoran, M
Couderc, F
Cousidou, MC
Croc, A
Cutts, D
Cwiok, M
Das, A
Davies, G
De, K
de Jong, SJ
De La Cruz-Burelo, E
Deliot, F
Demarteau, M
Demina, R
Denisov, D
Denisov, SP
Desai, S
DeVaughan, K
Diehl, HT
Diesburg, M
Dominguez, A
Dorland, T
Dubey, A
Dudko, LV
Duggan, D
Duperrin, A
Dutt, S
Dyshkant, A
Eads, M
Edmunds, D
Ellison, J
Elvira, VD
Enari, Y
Eno, S
Evans, H
Evdokimov, A
Evdokimov, VN
Facini, G
Ferapontov, AV
Ferbel, T
Fiedler, F
Filthaut, F
Fisher, W
Fisk, HE
Fortner, M
Fox, H
Fuess, S
Gadfort, T
Garcia-Bellido, A
Gavrilov, V
Gay, P
Geist, W
Geng, W
Gerbaudo, D
Gerber, CE
Gershtein, Y
Gillberg, D
Ginther, G
Golovanov, G
Goussiou, A
Grannis, PD
Greder, S
Greenlee, H
Greenwood, ZD
Gregores, EM
Grenier, G
Gris, P
Grivaz, JF
Grohsjean, A
Grunendahl, S
Grunewald, MW
Guo, F
Guo, J
Gutierrez, G
Gutierrez, R
Haas, A
Haefner, P
Hagopian, S
Haley, J
Han, L
Harder, K
Harel, A
Hauptman, JM
Hays, J
Hebbeker, T
Hedin, D
Heinson, AP
Heintz, U
Hensel, C
Heredia-De La Cruz, I
Herner, K
Hesketh, G
Hildreth, MD
Hirosky, R
Hoang, T
Hobbs, JD
Hoeneisen, B
Hohlfeld, M
Hossain, S
Hu, Y
Hubacek, Z
Huske, N
Hynek, V
Lashvili, I
Illingworth, R
Ito, AS
Jabeen, S
Jaffre, M
Jain, S
Jamin, D
Jesik, R
Johns, K
Johnson, M
Johnston, D
Jonckheere, A
Jonsson, P
Joshi, J
Juste, A
Kaadze, K
Kajfasz, E
Karmanov, D
Kasper, PA
Katsanos, I
Kehoe, R
Kermiche, S
Khalatyan, N
Khanov, A
Kharchilava, A
Kharzheev, YN
Khatidze, D
Kirby, MH
Kirsch, M
Kohli, JM
Kozelov, AV
Kraus, J
Kumar, A
Kupco, A
Kurca, T
Kuzmin, VA
Kvita, J
Lammers, S
Landsberg, G
Lebrun, P
Lee, HS
Lee, WM
Lellouch, J
Li, L
Li, QZ
Lietti, SM
Lim, JK
Lincoln, D
Linnemann, J
Lipaev, VV
Lipton, R
Liu, Y
Liu, Z
Lobodenko, A
Lokajicek, M
Love, P
Lubatti, HJ
Luna-Garcia, R
Lyon, AL
Maciel, AKA
Mackin, D
Madar, R
Magana-Villalba, R
Malik, S
Malyshev, VL
Maravin, Y
Martinez-Ortega, J
McCarthy, R
McGivern, CL
Meijer, MM
Melnitchouk, A
Menezes, D
Mercadante, PC
Merkin, M
Meyer, A
Meyer, J
Mondal, NK
Moulik, T
Muanza, GS
Mulhearn, M
Nagy, E
Naimuddin, M
Narain, M
Nayyar, R
Neal, HA
Negret, JP
Neustroev, P
Nilsen, H
Novaes, SF
Nunnemann, T
Obrant, G
Onoprienko, D
Orduna, J
Osman, N
Osta, J
Garzon, GJOY
Owen, M
Padilla, M
Pangilinan, M
Parashar, N
Parihar, V
Park, SK
Parsons, J
Partridge, R
Parua, N
Patwa, A
Penning, B
Perfilov, M
Peters, K
Peters, Y
Petrillo, G
Petroff, P
Piegaia, R
Piper, J
Pleier, MA
Podesta-Lerma, PLM
Podstavkov, VM
Pol, ME
Polozov, P
Popov, AV
Prewitt, M
Price, D
Protopopescu, S
Qian, J
Quadt, A
Quinn, B
Rangel, MS
Ranjan, K
Ratoff, PN
Razumov, I
Renkel, P
Rich, P
Rijssenbeek, M
Ripp-Baudot, L
Rizatdinova, F
Rominsky, M
Royon, C
Rubinov, P
Ruchti, R
Safronov, G
Sajot, G
Sanchez-Hernandez, A
Sanders, MP
Sanghi, B
Santos, AS
Savage, G
Sawyer, L
Scanlon, T
Schaile, D
Schamberger, RD
Scheglov, Y
Schellman, H
Schliephake, T
Schlobohm, S
Schwanenberger, C
Schwienhorst, R
Sekaric, J
Severini, H
Shabalina, E
Shary, V
Shchukin, AA
Shivpuri, RK
Simak, V
Sirotenko, V
Skubic, P
Slattery, R
Smirnov, D
Snow, GR
Snow, J
Snyder, S
Soldner-Rembold, S
Sonnenschein, L
Sopczak, A
Sosebee, M
Soustruznik, K
Spurlock, B
Stark, J
Stolin, V
Stoyanova, DA
Strauss, E
Strauss, M
Strohmer, R
Strom, D
Stutte, L
Svoisky, P
Takahashi, M
Tanasijczuk, A
Taylor, W
Tiller, B
Titov, M
Tokmenin, VV
Tsybychev, D
Tuchming, B
Tully, C
Tuts, PM
Unalan, R
Uvarov, L
Uvarov, S
Uzunyan, S
Van Kooten, R
van Leeuwen, WM
Varelas, N
Varnes, EW
Vasilyev, IA
Verdier, P
Vertogradov, LS
Verzocchi, M
Vesterinen, M
Vilanova, D
Vint, P
Vokac, P
Wahl, HD
Wang, MHLS
Warchol, J
Watts, G
Wayne, M
Weber, G
Weber, M
Wetstein, M
White, A
Wicke, D
Williams, MRJ
Wilson, GW
Wimpenny, SJ
Wobisch, M
Wood, DR
Wyatt, TR
Xie, Y
Xu, C
Yacoob, S
Yamada, R
Yang, WC
Yasuda, T
Yatsunenko, YA
Ye, Z
Yin, H
Yip, K
Yoo, HD
Youn, SW
Yu, J
Zelitch, S
Zhao, T
Zhou, B
Zhu, J
Zielinski, M
Zieminska, D
Zivkovic, L
AF Abazov, V. M.
Abbott, B.
Abolins, M.
Acharya, B. S.
Adams, M.
Adams, T.
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Alkhazov, G.
Alton, A.
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Ancu, L. S.
Aoki, M.
Arnoud, Y.
Arov, M.
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Barfuss, A. -F.
Baringer, P.
Barreto, J.
Bartlett, J. F.
Bassler, U.
Beale, S.
Bean, A.
Begalli, M.
Begel, M.
Belanger-Champagne, C.
Bellantoni, L.
Benitez, J. A.
Beri, S. B.
Bernardi, G.
Bernhard, R.
Bertram, I.
Besancon, M.
Beuselinck, R.
Bezzubov, V. A.
Bhat, P. C.
Bhatnagar, V.
Blazey, G.
Blessing, S.
Bloom, K.
Boehnlein, A.
Bonline, D.
Bolton, T. A.
Boos, E. E.
Borissov, G.
Bose, T.
Brandt, A.
Brandt, O.
Brock, R.
Brooijmans, G.
Bross, A.
Brown, D.
Bu, X. B.
Buchholz, D.
Buehler, M.
Buescher, V.
Bunichev, V.
Burdin, S.
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Buszello, C. P.
Calfayan, R.
Calpas, B.
Calvet, S.
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Cammin, J.
Carrasco-Lizarraga, M. A.
Carrera, E.
Casey, B. C. K.
Castilla-Valdez, H.
Chakrabarti, S.
Chakraborty, D.
Chan, K. M.
Chandra, A.
Chen, G.
Chevalier-Thery, S.
Cho, D. K.
Cho, S. W.
Choi, S.
Choudhary, B.
Christoudias, T.
Cihangir, S.
Claes, D.
Clutter, J.
Cooke, M.
Cooper, W. E.
Corcoran, M.
Couderc, F.
Cousidou, M. -C.
Croc, A.
Cutts, D.
Cwiok, M.
Das, A.
Davies, G.
De, K.
de Jong, S. J.
De La Cruz-Burelo, E.
Deliot, F.
Demarteau, M.
Demina, R.
Denisov, D.
Denisov, S. P.
Desai, S.
DeVaughan, K.
Diehl, H. T.
Diesburg, M.
Dominguez, A.
Dorland, T.
Dubey, A.
Dudko, L. V.
Duggan, D.
Duperrin, A.
Dutt, S.
Dyshkant, A.
Eads, M.
Edmunds, D.
Ellison, J.
Elvira, V. D.
Enari, Y.
Eno, S.
Evans, H.
Evdokimov, A.
Evdokimov, V. N.
Facini, G.
Ferapontov, A. V.
Ferbel, T.
Fiedler, F.
Filthaut, F.
Fisher, W.
Fisk, H. E.
Fortner, M.
Fox, H.
Fuess, S.
Gadfort, T.
Garcia-Bellido, A.
Gavrilov, V.
Gay, P.
Geist, W.
Geng, W.
Gerbaudo, D.
Gerber, C. E.
Gershtein, Y.
Gillberg, D.
Ginther, G.
Golovanov, G.
Goussiou, A.
Grannis, P. D.
Greder, S.
Greenlee, H.
Greenwood, Z. D.
Gregores, E. M.
Grenier, G.
Gris, Ph.
Grivaz, J. -F.
Grohsjean, A.
Gruenendahl, S.
Gruenewald, M. W.
Guo, F.
Guo, J.
Gutierrez, G.
Gutierrez, R.
Haas, A.
Haefner, P.
Hagopian, S.
Haley, J.
Han, L.
Harder, K.
Harel, A.
Hauptman, J. M.
Hays, J.
Hebbeker, T.
Hedin, D.
Heinson, A. P.
Heintz, U.
Hensel, C.
Heredia-De La Cruz, I.
Herner, K.
Hesketh, G.
Hildreth, M. D.
Hirosky, R.
Hoang, T.
Hobbs, J. D.
Hoeneisen, B.
Hohlfeld, M.
Hossain, S.
Hu, Y.
Hubacek, Z.
Huske, N.
Hynek, V.
Lashvili, I.
Illingworth, R.
Ito, A. S.
Jabeen, S.
Jaffre, M.
Jain, S.
Jamin, D.
Jesik, R.
Johns, K.
Johnson, M.
Johnston, D.
Jonckheere, A.
Jonsson, P.
Joshi, J.
Juste, A.
Kaadze, K.
Kajfasz, E.
Karmanov, D.
Kasper, P. A.
Katsanos, I.
Kehoe, R.
Kermiche, S.
Khalatyan, N.
Khanov, A.
Kharchilava, A.
Kharzheev, Y. N.
Khatidze, D.
Kirby, M. H.
Kirsch, M.
Kohli, J. M.
Kozelov, A. V.
Kraus, J.
Kumar, A.
Kupco, A.
Kurca, T.
Kuzmin, V. A.
Kvita, J.
Lammers, S.
Landsberg, G.
Lebrun, P.
Lee, H. S.
Lee, W. M.
Lellouch, J.
Li, L.
Li, Q. Z.
Lietti, S. M.
Lim, J. K.
Lincoln, D.
Linnemann, J.
Lipaev, V. V.
Lipton, R.
Liu, Y.
Liu, Z.
Lobodenko, A.
Lokajicek, M.
Love, P.
Lubatti, H. J.
Luna-Garcia, R.
Lyon, A. L.
Maciel, A. K. A.
Mackin, D.
Madar, R.
Magana-Villalba, R.
Malik, S.
Malyshev, V. L.
Maravin, Y.
Martinez-Ortega, J.
McCarthy, R.
McGivern, C. L.
Meijer, M. M.
Melnitchouk, A.
Menezes, D.
Mercadante, P. C.
Merkin, M.
Meyer, A.
Meyer, J.
Mondal, N. K.
Moulik, T.
Muanza, G. S.
Mulhearn, M.
Nagy, E.
Naimuddin, M.
Narain, M.
Nayyar, R.
Neal, H. A.
Negret, J. P.
Neustroev, P.
Nilsen, H.
Novaes, S. F.
Nunnemann, T.
Obrant, G.
Onoprienko, D.
Orduna, J.
Osman, N.
Osta, J.
Otero y Garzon, G. J.
Owen, M.
Padilla, M.
Pangilinan, M.
Parashar, N.
Parihar, V.
Park, S. K.
Parsons, J.
Partridge, R.
Parua, N.
Patwa, A.
Penning, B.
Perfilov, M.
Peters, K.
Peters, Y.
Petrillo, G.
Petroff, P.
Piegaia, R.
Piper, J.
Pleier, M. -A.
Podesta-Lerma, P. L. M.
Podstavkov, V. M.
Pol, M. -E.
Polozov, P.
Popov, A. V.
Prewitt, M.
Price, D.
Protopopescu, S.
Qian, J.
Quadt, A.
Quinn, B.
Rangel, M. S.
Ranjan, K.
Ratoff, P. N.
Razumov, I.
Renkel, P.
Rich, P.
Rijssenbeek, M.
Ripp-Baudot, L.
Rizatdinova, F.
Rominsky, M.
Royon, C.
Rubinov, P.
Ruchti, R.
Safronov, G.
Sajot, G.
Sanchez-Hernandez, A.
Sanders, M. P.
Sanghi, B.
Santos, A. S.
Savage, G.
Sawyer, L.
Scanlon, T.
Schaile, D.
Schamberger, R. D.
Scheglov, Y.
Schellman, H.
Schliephake, T.
Schlobohm, S.
Schwanenberger, C.
Schwienhorst, R.
Sekaric, J.
Severini, H.
Shabalina, E.
Shary, V.
Shchukin, A. A.
Shivpuri, R. K.
Simak, V.
Sirotenko, V.
Skubic, P.
Slattery, R.
Smirnov, D.
Snow, G. R.
Snow, J.
Snyder, S.
Soedner-Rembold, S.
Sonnenschein, L.
Sopczak, A.
Sosebee, M.
Soustruznik, K.
Spurlock, B.
Stark, J.
Stolin, V.
Stoyanova, D. A.
Strauss, E.
Strauss, M.
Stroehmer, R.
Strom, D.
Stutte, L.
Svoisky, P.
Takahashi, M.
Tanasijczuk, A.
Taylor, W.
Tiller, B.
Titov, M.
Tokmenin, V. V.
Tsybychev, D.
Tuchming, B.
Tully, C.
Tuts, P. M.
Unalan, R.
Uvarov, L.
Uvarov, S.
Uzunyan, S.
Van Kooten, R.
van Leeuwen, W. M.
Varelas, N.
Varnes, E. W.
Vasilyev, I. A.
Verdier, P.
Vertogradov, L. S.
Verzocchi, M.
Vesterinen, M.
Vilanova, D.
Vint, P.
Vokac, P.
Wahl, H. D.
Wang, M. H. L. S.
Warchol, J.
Watts, G.
Wayne, M.
Weber, G.
Weber, M.
Wetstein, M.
White, A.
Wicke, D.
Williams, M. R. J.
Wilson, G. W.
Wimpenny, S. J.
Wobisch, M.
Wood, D. R.
Wyatt, T. R.
Xie, Y.
Xu, C.
Yacoob, S.
Yamada, R.
Yang, W. -C.
Yasuda, T.
Yatsunenko, Y. A.
Ye, Z.
Yin, H.
Yip, K.
Yoo, H. D.
Youn, S. W.
Yu, J.
Zelitch, S.
Zhao, T.
Zhou, B.
Zhu, J.
Zielinski, M.
Zieminska, D.
Zivkovic, L.
CA D0 Collaboration
TI Measurement of the WZ -> lvll cross section and limits on anomalous
triple gauge couplings in p(p)over-bar collisions at root s=1.96 TeV
SO PHYSICS LETTERS B
LA English
DT Article
DE Diboson production; W and Z bosons; Cross section; Anomalous triple
gauge couplings; Tevatron; DO
ID COLLIDERS; VIOLATION; SYMMETRY
AB We present a new measurement of the WZ -> lvll (l = e, mu) cross section and limits on anomalous triple gauge couplings. Using 4.1 fb(-1) of integrated luminosity of p (p) over bar collisions at root s = 1.96 TeV, we observe 34 WZ candidate events with an estimated background of 6.0 +/- 0.4 events. We measure the WZ production cross section to be 3.89(-0.90)(+1.07) pb, in good agreement with the standard model prediction. We find no evidence for anomalous WWZ couplings and set 95% C.L. limits on the coupling parameters, -0.077 < lambda(z) < 0.093 and -0.029 < Delta kappa(z) < 0.080 in the HISZ parameterization for a Lambda = 2 TeV form factor scale. These are the best limits to date obtained from the direct measurement of the WWZ vertex. (C) 2010 Elsevier B.V. All rights reserved.
C1 [Abazov, V. M.; Alexeev, G. D.; Golovanov, G.; Kharzheev, Y. N.; Malyshev, V. L.; Tokmenin, V. V.; Vertogradov, L. S.; Yatsunenko, Y. A.] Joint Inst Nucl Res, Dubna, Russia.
[Otero y Garzon, G. J.; Piegaia, R.; Tanasijczuk, A.] Univ Buenos Aires, Buenos Aires, DF, Argentina.
[Alves, G. A.; Barreto, J.; Maciel, A. K. A.; Pol, M. -E.] LAFEX, Ctr Brasileiro Pesquisas Fis, Rio De Janeiro, Brazil.
[Begalli, M.] Univ Estado Rio de Janeiro, BR-20550011 Rio De Janeiro, Brazil.
[Gregores, E. M.; Mercadante, P. C.] Univ Fed ABC, Santo Andre, Brazil.
[Lietti, S. M.; Novaes, S. F.; Santos, A. S.] Univ Estadual Paulista, Inst Fis Teor, BR-01405 Sao Paulo, Brazil.
[Beale, S.; Gillberg, D.; Liu, Z.; Taylor, W.] Simon Fraser Univ, Vancouver, BC, Canada.
[Beale, S.; Gillberg, D.; Liu, Z.; Taylor, W.] York Univ, Toronto, ON M3J 2R7, Canada.
[Bu, X. B.; Han, L.; Liu, Y.; Yin, H.] Univ Sci & Technol China, Hefei 230026, Peoples R China.
[Avila, C.; Negret, J. P.] Univ Los Andes, Bogota, Colombia.
[Kvita, J.; Soustruznik, K.] Charles Univ Prague, Fac Math & Phys, Ctr Particle Phys, Prague, Czech Republic.
[Hubacek, Z.; Hynek, V.; Simak, V.; Vokac, P.] Czech Tech Univ, CR-16635 Prague, Czech Republic.
[Kupco, A.; Lokajicek, M.] Acad Sci Czech Republic, Inst Phys, Ctr Particle Phys, Prague, Czech Republic.
[Hoeneisen, B.] Univ San Francisco Quito, Quito, Ecuador.
[Badaud, F.; Gay, P.; Gris, Ph.] Univ Clermont Ferrand, LPC, CNRS, IN2P3, Clermont, France.
[Arnoud, Y.; Sajot, G.; Stark, J.] Univ Grenoble 1, LPSC, CNRS IN2P3, Inst Natl Polytech Grenoble, Grenoble, France.
[Barfuss, A. -F.; Calpas, B.; Cousidou, M. -C.; Duperrin, A.; Geng, W.; Jamin, D.; Kajfasz, E.; Kermiche, S.; Muanza, G. S.; Nagy, E.] Aix Marseille Univ, CPPM, CNRS, IN2P3, Marseille, France.
[Calvet, S.; Grivaz, J. -F.; Jaffre, M.; Petroff, P.; Rangel, M. S.] Univ Paris 11, LAL, CNRS, IN2P3, Orsay, France.
[Bernardi, G.; Enari, Y.; Huske, N.; Lellouch, J.] Univ Paris 06, LPNHE, Paris, France.
[Bernardi, G.; Enari, Y.; Huske, N.; Lellouch, J.] Univ Paris 07, CNRS, IN2P3, Paris, France.
[Bassler, U.; Besancon, M.; Chevalier-Thery, S.; Couderc, F.; Croc, A.; Deliot, F.; Grohsjean, A.; Madar, R.; Royon, C.; Shary, V.; Titov, M.; Tuchming, B.; Vilanova, D.] CEA, Irfu, SPP, Saclay, France.
[Brown, D.; Geist, W.; Greder, S.; Ripp-Baudot, L.] Univ Strasbourg, CNRS, IN2P3, IPHC, Strasbourg, France.
[Grenier, G.; Kurca, T.; Lebrun, P.; Verdier, P.] Univ Lyon 1, IPNL, CNRS, IN2P3, F-69622 Villeurbanne, France.
[Grenier, G.; Kurca, T.; Lebrun, P.; Verdier, P.] Univ Lyon, Lyon, France.
[Hebbeker, T.; Kirsch, M.; Meyer, A.; Sonnenschein, L.] Rhein Westfal TH Aachen, Phys Inst A 3, Aachen, Germany.
[Bernhard, R.; Nilsen, H.] Univ Freiburg, Inst Phys, Freiburg, Germany.
[Brandt, O.; Hensel, C.; Meyer, J.; Quadt, A.; Shabalina, E.] Univ Gottingen, Inst Phys 2, Gottingen, Germany.
[Buescher, V.; Fiedler, F.; Hohlfeld, M.; Weber, G.; Wicke, D.] Johannes Gutenberg Univ Mainz, Inst Phys, D-6500 Mainz, Germany.
[Calfayan, R.; Haefner, P.; Nunnemann, T.; Sanders, M. P.; Schaile, D.; Stroehmer, R.; Tiller, B.] Univ Munich, Munich, Germany.
[Schliephake, T.] Berg Univ Wuppertal, Fachbereich Phys, Wuppertal, Germany.
[Beri, S. B.; Bhatnagar, V.; Dutt, S.; Joshi, J.; Kohli, J. M.] Panjab Univ, Chandigarh 160014, India.
[Choudhary, B.; Dubey, A.; Naimuddin, M.; Nayyar, R.; Ranjan, K.; Shivpuri, R. K.] Univ Delhi, Delhi 110007, India.
[Acharya, B. S.; Banerjee, S.; Mondal, N. K.] Tata Inst Fundamental Res, Mumbai 400005, Maharashtra, India.
[Cwiok, M.; Gruenewald, M. W.] Univ Coll Dublin, Dublin 2, Ireland.
[Cho, S. W.; Choi, S.; Lee, H. S.; Lim, J. K.; Park, S. K.] Korea Univ, Korea Detector Lab, Seoul, South Korea.
[Camacho-Perez, E.; Carrasco-Lizarraga, M. A.; Castilla-Valdez, H.; De La Cruz-Burelo, E.; Heredia-De La Cruz, I.; Luna-Garcia, R.; Magana-Villalba, R.; Martinez-Ortega, J.; Orduna, J.; Podesta-Lerma, P. L. M.; Sanchez-Hernandez, A.] CINVESTAV, Mexico City 14000, DF, Mexico.
[van Leeuwen, W. M.] Univ Amsterdam, NIKHEF, Amsterdam, Netherlands.
[van Leeuwen, W. M.] FOM Inst NIKHEF, Amsterdam, Netherlands.
[Ancu, L. S.; de Jong, S. J.; Filthaut, F.; Meijer, M. M.; Svoisky, P.] Radboud Univ Nijmegen, NIKHEF, NL-6525 ED Nijmegen, Netherlands.
[Gavrilov, V.; Polozov, P.; Safronov, G.; Stolin, V.] Inst Theoret & Expt Phys, Moscow 117259, Russia.
[Boos, E. E.; Bunichev, V.; Dudko, L. V.; Karmanov, D.; Kuzmin, V. A.; Merkin, M.; Perfilov, M.] Moscow MV Lomonosov State Univ, Moscow, Russia.
[Bezzubov, V. A.; Denisov, S. P.; Evdokimov, V. N.; Kozelov, A. V.; Lipaev, V. V.; Popov, A. V.; Razumov, I.; Shchukin, A. A.; Stoyanova, D. A.; Vasilyev, I. A.] Inst High Energy Phys, Protvino, Russia.
[Alkhazov, G.; Lobodenko, A.; Neustroev, P.; Obrant, G.; Scheglov, Y.; Uvarov, L.; Uvarov, S.] Petersburg Nucl Phys Inst, St Petersburg, Russia.
[Asman, B.; Belanger-Champagne, C.] Stockholm Univ, S-10691 Stockholm, Sweden.
[Asman, B.; Belanger-Champagne, C.] Uppsala Univ, Uppsala, Sweden.
[Bertram, I.; Borissov, G.; Burdin, S.; Fox, H.; Love, P.; Ratoff, P. N.; Sopczak, A.; Williams, M. R. J.] Univ Lancaster, Lancaster LA1 4YB, England.
[Beuselinck, R.; Buszello, C. P.; Christoudias, T.; Davies, G.; Hays, J.; Jesik, R.; Jonsson, P.; Osman, N.; Scanlon, T.; Vint, P.] Univ London Imperial Coll Sci Technol & Med, London SW7 2AZ, England.
[Harder, K.; Owen, M.; Peters, K.; Peters, Y.; Rich, P.; Schwanenberger, C.; Soedner-Rembold, S.; Takahashi, M.; Vesterinen, M.; Wyatt, T. R.; Yang, W. -C.] Univ Manchester, Manchester M13 9PL, Lancs, England.
[Das, A.; Johns, K.; Varnes, E. W.] Univ Arizona, Tucson, AZ 85721 USA.
[Ellison, J.; Heinson, A. P.; Li, L.; Padilla, M.; Wimpenny, S. J.] Univ Calif Riverside, Riverside, CA 92521 USA.
[Adams, T.; Askew, A.; Bandurin, D. V.; Blessing, S.; Carrera, E.; Hagopian, S.; Hoang, T.; Wahl, H. D.] Florida State Univ, Tallahassee, FL 32306 USA.
[Aoki, M.; Bagby, L.; Baldin, B.; Bartlett, J. F.; Bellantoni, L.; Bhat, P. C.; Boehnlein, A.; Bross, A.; Casey, B. C. K.; Cihangir, S.; Cooke, M.; Cooper, W. E.; Demarteau, M.; Denisov, D.; Desai, S.; Diehl, H. T.; Diesburg, M.; Elvira, V. D.; Fisk, H. E.; Fuess, S.; Ginther, G.; Greenlee, H.; Gruenendahl, S.; Gutierrez, G.; Illingworth, R.; Ito, A. S.; Johnson, M.; Jonckheere, A.; Juste, A.; Kasper, P. A.; Khalatyan, N.; Lee, W. M.; Li, Q. Z.; Lincoln, D.; Lipton, R.; Lyon, A. L.; Penning, B.; Podstavkov, V. M.; Rominsky, M.; Rubinov, P.; Sanghi, B.; Savage, G.; Sirotenko, V.; Stutte, L.; Verzocchi, M.; Weber, M.; Xie, Y.; Yamada, R.; Yasuda, T.; Ye, Z.; Youn, S. W.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
[Adams, M.; Gerber, C. E.; Strom, D.; Varelas, N.] Univ Illinois, Chicago, IL 60607 USA.
[Blazey, G.; Chakraborty, D.; Dyshkant, A.; Fortner, M.; Hedin, D.; Menezes, D.; Uzunyan, S.] Univ Illinois, De Kalb, IL 60115 USA.
[Buchholz, D.; Kirby, M. H.; Schellman, H.; Yacoob, S.] Northwestern Univ, Evanston, IL 60208 USA.
[Evans, H.; Lammers, S.; Parua, N.; Price, D.; Van Kooten, R.; Zieminska, D.] Indiana Univ, Bloomington, IN 47405 USA.
[Parashar, N.] Purdue Univ Calumet, Hammond, IN 46323 USA.
[Chan, K. M.; Hildreth, M. D.; Osta, J.; Ruchti, R.; Smirnov, D.; Warchol, J.; Wayne, M.] Univ Notre Dame, Notre Dame, IN 46556 USA.
[Hauptman, J. M.] Iowa State Univ, Ames, IA 50011 USA.
[Baringer, P.; Bean, A.; Chen, G.; Clutter, J.; McGivern, C. L.; Moulik, T.; Sekaric, J.; Wilson, G. W.] Univ Kansas, Lawrence, KS 66045 USA.
[Bolton, T. A.; Kaadze, K.; Maravin, Y.; Onoprienko, D.] Kansas State Univ, Manhattan, KS 66506 USA.
[Arov, M.; Greenwood, Z. D.; Sawyer, L.; Wobisch, M.] Louisiana Tech Univ, Ruston, LA 71272 USA.
[Eno, S.; Ferbel, T.; Wetstein, M.] Univ Maryland, College Pk, MD 20742 USA.
[Bose, T.] Boston Univ, Boston, MA 02215 USA.
[Alverson, G.; Barberis, E.; Facini, G.; Haley, J.; Hesketh, G.; Wood, D. R.] Northeastern Univ, Boston, MA 02115 USA.
[Alton, A.; Herner, K.; Neal, H. A.; Qian, J.; Xu, C.; Zhou, B.] Univ Michigan, Ann Arbor, MI 48109 USA.
[Abolins, M.; Benitez, J. A.; Brock, R.; Edmunds, D.; Fisher, W.; Geng, W.; Kraus, J.; Linnemann, J.; Piper, J.; Schwienhorst, R.; Unalan, R.] Michigan State Univ, E Lansing, MI 48824 USA.
[Melnitchouk, A.; Quinn, B.] Univ Mississippi, University, MS 38677 USA.
[Bloom, K.; Claes, D.; DeVaughan, K.; Dominguez, A.; Eads, M.; Johnston, D.; Katsanos, I.; Malik, S.; Snow, G. R.] Univ Nebraska, Lincoln, NE 68588 USA.
[Atramentov, O.; Duggan, D.; Gershtein, Y.] Rutgers State Univ, Piscataway, NJ 08855 USA.
[Gerbaudo, D.; Tully, C.] Princeton Univ, Princeton, NJ 08544 USA.
[Lashvili, I.; Jain, S.; Kharchilava, A.; Kumar, A.] SUNY Buffalo, Buffalo, NY 14260 USA.
[Brooijmans, G.; Haas, A.; Parsons, J.; Tuts, P. M.; Zivkovic, L.] Columbia Univ, New York, NY 10027 USA.
[Cammin, J.; Demina, R.; Ferbel, T.; Garcia-Bellido, A.; Ginther, G.; Harel, A.; Petrillo, G.; Slattery, R.; Wang, M. H. L. S.; Zielinski, M.] Univ Rochester, Rochester, NY 14627 USA.
[Bonline, D.; Chakrabarti, S.; Grannis, P. D.; Guo, F.; Guo, J.; Hobbs, J. D.; Hu, Y.; McCarthy, R.; Rijssenbeek, M.; Schamberger, R. D.; Strauss, E.; Tsybychev, D.; Zhu, J.] SUNY Stony Brook, Stony Brook, NY 11794 USA.
[Begel, M.; Evdokimov, A.; Gadfort, T.; Patwa, A.; Pleier, M. -A.; Protopopescu, S.; Snyder, S.; Yip, K.] Brookhaven Natl Lab, Upton, NY 11973 USA.
[Snow, J.] Langston Univ, Langston, OK 73050 USA.
[Abbott, B.; Gutierrez, R.; Hossain, S.; Severini, H.; Skubic, P.; Strauss, M.] Univ Oklahoma, Norman, OK 73019 USA.
[Khanov, A.; Rizatdinova, F.] Oklahoma State Univ, Stillwater, OK 74078 USA.
[Cho, D. K.; Cutts, D.; Ferapontov, A. V.; Heintz, U.; Jabeen, S.; Khatidze, D.; Landsberg, G.; Narain, M.; Pangilinan, M.; Parihar, V.; Partridge, R.; Yoo, H. D.] Brown Univ, Providence, RI 02912 USA.
[Brandt, A.; De, K.; Sosebee, M.; Spurlock, B.; White, A.; Yu, J.] Univ Texas Arlington, Arlington, TX 76019 USA.
[Kehoe, R.; Renkel, P.] So Methodist Univ, Dallas, TX 75275 USA.
[Chandra, A.; Corcoran, M.; Mackin, D.; Prewitt, M.] Rice Univ, Houston, TX 77005 USA.
[Buehler, M.; Hirosky, R.; Mulhearn, M.; Zelitch, S.] Univ Virginia, Charlottesville, VA 22901 USA.
[BackusMayes, J.; Burnett, T. H.; Dorland, T.; Goussiou, A.; Lubatti, H. J.; Schlobohm, S.; Watts, G.; Zhao, T.] Univ Washington, Seattle, WA 98195 USA.
RP Abazov, VM (reprint author), Joint Inst Nucl Res, Dubna, Russia.
RI Mercadante, Pedro/K-1918-2012; Yip, Kin/D-6860-2013; Wimpenny,
Stephen/K-8848-2013; Fisher, Wade/N-4491-2013; Bolton, Tim/A-7951-2012;
bu, xuebing/D-1121-2012; Merkin, Mikhail/D-6809-2012; Dudko,
Lev/D-7127-2012; Perfilov, Maxim/E-1064-2012; Boos, Eduard/D-9748-2012;
Novaes, Sergio/D-3532-2012; Santos, Angelo/K-5552-2012; De,
Kaushik/N-1953-2013; Ancu, Lucian Stefan/F-1812-2010; Alves,
Gilvan/C-4007-2013; Deliot, Frederic/F-3321-2014; Sharyy,
Viatcheslav/F-9057-2014; Lokajicek, Milos/G-7800-2014; Kupco,
Alexander/G-9713-2014; Kozelov, Alexander/J-3812-2014; Christoudias,
Theodoros/E-7305-2015; Gerbaudo, Davide/J-4536-2012; Li,
Liang/O-1107-2015
OI Yip, Kin/0000-0002-8576-4311; Wimpenny, Stephen/0000-0003-0505-4908;
Dudko, Lev/0000-0002-4462-3192; Novaes, Sergio/0000-0003-0471-8549; De,
Kaushik/0000-0002-5647-4489; Ancu, Lucian Stefan/0000-0001-5068-6723;
Sharyy, Viatcheslav/0000-0002-7161-2616; Christoudias,
Theodoros/0000-0001-9050-3880; Gerbaudo, Davide/0000-0002-4463-0878; Li,
Liang/0000-0001-6411-6107
FU DOE (USA); NSF (USA); CEA (France); CNRS/IN2P3 (France); FASI (Russia);
CNPq (Brazil); FAPERJ (Brazil); FAPESP (Brazil); FUNDUNESP (Brazil); DAE
(India); DST (India); Colciencias (Colombia); CONACyT (Mexico); KRF
(Korea); KOSEF (Korea); CONICET (Argentina); UBACyT (Argentina); FOM
(The Netherlands); STFC (United Kingdom); Royal Society (United
Kingdom); MSMT (Czech Republic); GACR (Czech Republic); CRC Program
(Canada); NSERC (Canada); BMBF (Germany); DFG (Germany); SFI (Ireland);
Swedish Research Council (Sweden); CAS (China); CNSF (China); Rosatom
(Russia); RFBR (Russia)
FX We thank the staffs at Fermilab and collaborating institutions, and
acknowledge support from the DOE and NSF (USA); CEA and CNRS/IN2P3
(France); FASI, Rosatom and RFBR (Russia); CNPq, FAPERJ, FAPESP and
FUNDUNESP (Brazil); DAE and DST (India); Colciencias (Colombia); CONACyT
(Mexico); KRF and KOSEF (Korea); CONICET and UBACyT (Argentina); FOM
(The Netherlands); STFC and the Royal Society (United Kingdom); MSMT and
GACR (Czech Republic); CRC Program and NSERC (Canada); BMBF and DFG
(Germany); SFI (Ireland); The Swedish Research Council (Sweden); and CAS
and CNSF (China).
NR 28
TC 20
Z9 20
U1 0
U2 6
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0370-2693
J9 PHYS LETT B
JI Phys. Lett. B
PD JAN 10
PY 2011
VL 695
IS 1-4
BP 67
EP 73
DI 10.1016/j.physletb.2010.10.047
PG 7
WC Astronomy & Astrophysics; Physics, Nuclear; Physics, Particles & Fields
SC Astronomy & Astrophysics; Physics
GA 713AZ
UT WOS:000286708700013
ER
PT J
AU Polyanskiy, A
Hartmann, M
Kiselev, YT
Paryev, EY
Buscher, M
Chiladze, D
Dymov, S
Dzyuba, A
Gebel, R
Hejny, V
Kampfer, B
Keshelashvili, I
Koptev, V
Lorentz, B
Maeda, Y
Merzliakov, S
Mikirtytchiants, S
Nekipelov, M
Ohm, H
Schade, H
Serdyuk, V
Sibirtsev, A
Sinitsyna, VY
Stein, HJ
Stroher, H
Trusov, S
Valdau, Y
Wilkin, C
Wustner, P
AF Polyanskiy, A.
Hartmann, M.
Kiselev, Yu. T.
Paryev, E. Ya.
Buescher, M.
Chiladze, D.
Dymov, S.
Dzyuba, A.
Gebel, R.
Hejny, V.
Kaempfer, B.
Keshelashvili, I.
Koptev, V.
Lorentz, B.
Maeda, Y.
Merzliakov, S.
Mikirtytchiants, S.
Nekipelov, M.
Ohm, H.
Schade, H.
Serdyuk, V.
Sibirtsev, A.
Sinitsyna, V. Y.
Stein, H. J.
Stroeher, H.
Trusov, S.
Valdau, Yu.
Wilkin, C.
Wuestner, P.
TI Measurement of the in-medium phi-meson width in proton-nucleus
collisions
SO PHYSICS LETTERS B
LA English
DT Article
DE phi meson production; Nuclear medium effects
ID INCLUSIVE PION-PRODUCTION; NEAR-THRESHOLD PRODUCTION; QCD SUM-RULES;
VECTOR-MESONS; COSY-JULICH; PHOTOPRODUCTION; DEPENDENCE; MODEL; ANKE
AB The production of phi mesons in the collisions of 2.83 GeV protons with C, Cu, Ag, and Au at forward angles has been measured via the phi -> K(+)K(-) decay using the COSY-ANKE magnetic spectrometer. The phi meson production cross section follows a target mass dependence of A(0.56 +/- 0.33) in the momentum region of 0.6-1.6 GeV/c. The comparison of the data with model calculations suggests that the in-medium phi width is about an order of magnitude larger than its free value. (C) 2010 Elsevier B.V. All rights reserved.
C1 [Wilkin, C.] UCL, Dept Phys & Astron, London WC1E 6BT, England.
[Polyanskiy, A.; Hartmann, M.; Buescher, M.; Chiladze, D.; Gebel, R.; Hejny, V.; Lorentz, B.; Merzliakov, S.; Nekipelov, M.; Ohm, H.; Serdyuk, V.; Sibirtsev, A.; Stein, H. J.; Stroeher, H.; Valdau, Yu.] Forschungszentrum Julich, Inst Kernphys, D-52425 Julich, Germany.
[Polyanskiy, A.; Hartmann, M.; Buescher, M.; Chiladze, D.; Gebel, R.; Hejny, V.; Lorentz, B.; Merzliakov, S.; Nekipelov, M.; Ohm, H.; Serdyuk, V.; Sibirtsev, A.; Stein, H. J.; Stroeher, H.; Valdau, Yu.] Forschungszentrum Julich, Julich Ctr Hadron Phys, D-52425 Julich, Germany.
[Polyanskiy, A.; Kiselev, Yu. T.] Inst Theoret & Expt Phys, RU-117218 Moscow, Russia.
[Paryev, E. Ya.] Russian Acad Sci, Inst Nucl Res, RU-117312 Moscow, Russia.
[Chiladze, D.] Tbilisi State Univ, Inst High Energy Phys, GE-0186 Tbilisi, Rep of Georgia.
[Dymov, S.] Univ Erlangen Nurnberg, Inst Phys 2, D-91058 Erlangen, Germany.
[Dymov, S.; Merzliakov, S.; Serdyuk, V.] Joint Nucl Res Inst, Lab Nucl Problems, RU-141980 Dubna, Russia.
[Dzyuba, A.; Koptev, V.; Mikirtytchiants, S.; Valdau, Yu.] Petersburg Nucl Phys Inst, Dept High Energy Phys, RU-188350 Gatchina, Russia.
[Kaempfer, B.; Schade, H.; Trusov, S.] Forschungszentrum Dresden Rossendorf, D-01314 Dresden, Germany.
[Trusov, S.] Moscow MV Lomonosov State Univ, Skobeltsyn Inst Nucl Phys, RU-119991 Moscow, Russia.
[Keshelashvili, I.] Univ Basel, Dept Phys, CH-4056 Basel, Switzerland.
[Maeda, Y.] Osaka Univ, Nucl Phys Res Ctr, Osaka 5670047, Japan.
[Sibirtsev, A.] Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany.
[Sibirtsev, A.] Univ Bonn, Bethe Ctr Theoret Phys, D-53115 Bonn, Germany.
[Sibirtsev, A.] Thomas Jefferson Natl Accelerator Facility, Excited Baryon Anal Ctr EBAC, Newport News, VA 23606 USA.
[Sinitsyna, V. Y.] PN Lebedev Phys Inst, RU-119991 Moscow, Russia.
[Wuestner, P.] Forschungszentrum Julich, Zent Inst Elekt, D-52425 Julich, Germany.
RP Wilkin, C (reprint author), UCL, Dept Phys & Astron, Gower St, London WC1E 6BT, England.
EM m.hartmann@fz-juelich.de; yurikis@itep.ru; cw@hep.ucl.ac.uk
RI Buscher, Markus/G-6540-2013; Hejny, Volker/D-6657-2012; Sinitsyna, Vera
Georgievna/M-9575-2015; Sinitsyna, Vera Yurievna/M-9568-2015; Kiselev,
Yury/A-4572-2017
OI Buscher, Markus/0000-0001-5265-7248; Hejny, Volker/0000-0003-0713-5859;
FU BMBF; COSY FFE; VI-QCD; DFG; RFBR
FX Support from A. Wirzba and other members of the ANKE Collaboration, as
well as the COSY machine crew, are gratefully acknowledged. The
calculations performed for us by the Valencia group have been very
helpful in the interpretation of our results. This work has been
partially financed by the BMBF, COSY FFE, VI-QCD, DFG, and RFBR.
NR 35
TC 30
Z9 30
U1 2
U2 3
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0370-2693
J9 PHYS LETT B
JI Phys. Lett. B
PD JAN 10
PY 2011
VL 695
IS 1-4
BP 74
EP 77
DI 10.1016/j.physletb.2010.10.050
PG 4
WC Astronomy & Astrophysics; Physics, Nuclear; Physics, Particles & Fields
SC Astronomy & Astrophysics; Physics
GA 713AZ
UT WOS:000286708700014
ER
PT J
AU Abazov, VM
Abbott, B
Abolins, M
Acharya, BS
Adams, M
Adams, T
Alexeev, GD
Alkhazov, G
Alton, A
Alverson, G
Alves, GA
Ancu, LS
Aoki, M
Arnoud, Y
Arov, M
Askew, A
Asman, B
Atramentov, O
Avila, C
BackusMayes, J
Badaud, F
Bagby, L
Baldin, B
Bandurin, DV
Banerjee, S
Barberis, E
Baringer, P
Barreto, J
Bartlett, JF
Bassler, U
Beale, S
Bean, A
Begalli, M
Begel, M
Belanger-Champagne, C
Bellantoni, L
Benitez, JA
Beri, SB
Bernardi, G
Bernhard, R
Bertram, I
Besancon, M
Beuselinck, R
Bezzubov, VA
Bhat, PC
Bhatnagar, V
Blazey, G
Blessing, S
Bloom, K
Boehnlein, A
Boline, D
Bolton, TA
Boos, EE
Borissov, G
Bose, T
Brandt, A
Brandt, O
Brock, R
Brooijmans, G
Bross, A
Brown, D
Brown, J
Bu, XB
Buchholz, D
Buehler, M
Buescher, V
Bunichev, V
Burdin, S
Burnett, TH
Buszello, CP
Calpas, B
Calvet, S
Camacho-Perez, E
Carrasco-Lizarraga, MA
Carrera, E
Casey, BCK
Castilla-Valdez, H
Chakrabarti, S
Chakraborty, D
Chan, KM
Chandra, A
Chen, G
Chevalier-Thery, S
Cho, DK
Cho, SW
Choi, S
Choudhary, B
Christoudias, T
Cihangir, S
Claes, D
Clutter, J
Cooke, M
Cooper, WE
Corcoran, M
Couderc, F
Cousinou, MC
Croc, A
Cutts, D
Cwiok, M
Das, A
Davies, G
De, K
de Jong, SJ
De La Cruz-Burelo, E
Deliot, F
Demarteau, M
Demina, R
Denisov, D
Denisov, SP
Desai, S
DeVaughan, K
Diehl, HT
Diesburg, M
Dominguez, A
Dorland, T
Dubey, A
Dudko, LV
Duggan, D
Duperrin, A
Dutt, S
Dyshkant, A
Eads, M
Edmunds, D
Ellison, J
Elvira, VD
Enari, Y
Eno, S
Evans, H
Evdokimov, A
Evdokimov, VN
Facini, G
Ferapontov, AV
Ferbel, T
Fiedler, F
Filthaut, F
Fisher, W
Fisk, HE
Fortner, M
Fox, H
Fuess, S
Gadfort, T
Garcia-Bellido, A
Gavrilov, V
Gay, R
Geist, W
Geng, W
Gerbaudo, D
Gerber, CE
Gershtein, Y
Ginther, G
Golovanov, G
Goussiou, A
Grannis, PD
Greder, S
Greenlee, H
Greenwood, ZD
Gregores, EM
Grenier, G
Gris, P
Grivaz, JF
Grohsjean, A
Grunendahl, S
Grunewald, MW
Guo, F
Guo, J
Gutierrez, G
Gutierrez, P
Haas, A
Hagopian, S
Haley, J
Han, L
Harder, K
Harel, A
Hauptman, JM
Hays, J
Hebbeker, T
Hedin, D
Hegab, H
Heinson, AP
Heintz, U
Hensel, C
Heredia-De La Cruz, I
Herner, K
Hesketh, G
Hildreth, MD
Hirosky, R
Hoang, T
Hobbs, JD
Hoeneisen, B
Hohlfeld, M
Hossain, S
Hubacek, Z
Huske, N
Hynek, V
Iashvili, I
Illingworth, R
Ito, AS
Jabeen, S
Jaffre, M
Jain, S
Jamin, D
Jesik, R
Johns, K
Johnson, M
Johnston, D
Jonckheere, A
Jonsson, R
Joshi, J
Juste, A
Kaadze, K
Kajfasz, E
Karmanov, D
Kasper, PA
Katsanos, I
Kehoe, R
Kermiche, S
Khalatyan, N
Khanov, A
Kharchilava, A
Kharzheev, YN
Khatidze, D
Kirby, MH
Kohli, JM
Kozelov, AV
Kraus, J
Kumar, A
Kupco, A
Kurca, T
Kuzmin, VA
Kvita, J
Lammers, S
Landsberg, G
Lebrun, R
Lee, HS
Lee, SW
Lee, WM
Lellouch, J
Li, L
Li, QZ
Lietti, SM
Lim, JK
Lincoln, D
Linnemann, J
Lipaev, VV
Lipton, R
Liu, Y
Liu, Z
Lobodenko, A
Lokajicek, M
Love, P
Lubatti, HJ
Luna-Garcia, R
Lyon, AL
Maciel, AKA
Mackin, D
Madar, R
Magana-Villalba, R
Malik, S
Malyshev, VL
Maravin, Y
Martinez-Ortega, J
McCarthy, R
McGivern, CL
Meijer, MM
Melnitchouk, A
Menezes, D
Mercadante, PG
Merkin, M
Meyer, A
Meyer, J
Mondal, NK
Muanza, GS
Mulhearn, M
Nagy, E
Naimuddin, M
Narain, M
Nayyar, R
Neal, HA
Negret, JP
Neustroev, P
Nilsen, H
Novaes, SF
Nunnemann, T
Obrant, G
Onoprienko, D
Orduna, J
Osman, N
Osta, J
Garzon, GJOY
Owen, M
Padilla, M
Pangilinan, M
Parashar, N
Parihar, V
Park, SK
Parsons, J
Partridge, R
Parua, N
Patwa, A
Penning, B
Perfilov, M
Peters, K
Peters, Y
Petrillo, G
Petroff, P
Piegaia, R
Piper, J
Pleier, MA
Podesta-Lerma, PLM
Podstavkov, VM
Pol, ME
Polozov, P
Popov, AV
Prewitt, M
Price, D
Protopopescu, S
Qian, J
Quadt, A
Quinn, B
Rangel, MS
Ranjan, K
Ratoff, PN
Razumov, I
Renkel, P
Rich, P
Rijssenbeek, M
Ripp-Baudot, I
Rizatdinova, F
Rominsky, M
Royon, C
Rubinov, P
Ruchti, R
Safronov, G
Sajot, G
Sanchez-Hernandez, A
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TI Search for a heavy neutral gauge boson in the dielectron channel with
5.4 fb(-1) of p(p)over-bar collisions at root s=1.96 TeV
SO PHYSICS LETTERS B
LA English
DT Article
DE Extensions of standard model; New gauge bosons
ID DETECTOR
AB We report the results of a search for a heavy neutral gauge boson Z' decaying into the dielectron final state using data corresponding to an integrated luminosity of 5.4 fb(-1) collected by the D0 experiment at the Fermilab Tevatron Collider. No significant excess above the standard model prediction is observed in the dielectron invariant-mass spectrum. We set 95 sigma(p (p) over bar -> Z') x BR(Z' -> ee) depending on the dielectron invariant mass. These cross section limits are used to determine lower mass limits for bosons in a variety of models. For the sequential standard model boson a lower mass limit of 1023 GeV is obtained. (C) 2010 Elsevier B.V. All rights reserved.
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[Iashvili, I.; Jain, S.; Kharchilava, A.; Kumar, A.; Smith, K. J.] SUNY Buffalo, Buffalo, NY 14260 USA.
[Brooijmans, G.; Haas, A.; Parsons, J.; Tuts, P. M.; Zhou, N.; Zivkovic, L.] Columbia Univ, New York, NY 10027 USA.
[Demina, R.; Ferbel, T.; Garcia-Bellido, A.; Ginther, G.; Harel, A.; Petrillo, G.; Slattery, R.; Wang, M. H. L. S.; Zielinski, M.] Univ Rochester, Rochester, NY 14627 USA.
[Boline, D.; Chakrabarti, S.; Grannis, P. D.; Guo, F.; Guo, J.; Hobbs, J. D.; McCarthy, R.; Rijssenbeek, M.; Schamberger, R. D.; Strauss, E.; Tsybychev, D.] SUNY Stony Brook, Stony Brook, NY 11794 USA.
[Begel, M.; Evdokimov, A.; Gadfort, T.; Patwa, A.; Pleier, M. -A.; Protopopescu, S.; Snyder, S.; Yip, K.] Brookhaven Natl Lab, Upton, NY 11973 USA.
[Snow, J.] Langston Univ, Langston, OK 73050 USA.
[Abbott, B.; Gutierrez, P.; Hossain, S.; Severini, H.; Skubic, R.; Strauss, M.] Univ Oklahoma, Norman, OK 73019 USA.
[Hegab, H.; Khanov, A.; Rizatdinova, F.] Oklahoma State Univ, Stillwater, OK 74078 USA.
[Cho, D. K.; Cutts, D.; Ferapontov, A. V.; Heintz, U.; Jabeen, S.; Khatidze, D.; Landsberg, G.; Narain, M.; Pangilinan, M.; Parihar, V.; Partridge, R.; Yoo, H. D.] Brown Univ, Providence, RI 02912 USA.
[Brandt, A.; De, K.; Sosebee, M.; Spurlock, B.; White, A.; Yu, J.] Univ Texas Arlington, Arlington, TX 76019 USA.
[Kehoe, R.; Renkel, P.] So Methodist Univ, Dallas, TX 75275 USA.
[Chandra, A.; Corcoran, M.; Mackin, D.; Prewitt, M.] Rice Univ, Houston, TX 77005 USA.
[Buehler, M.; Hirosky, R.; Mulhearn, M.; Zelitch, S.] Univ Virginia, Charlottesville, VA 22901 USA.
[BackusMayes, J.; Burnett, T. H.; Dorland, T.; Goussiou, A.; Lubatti, H. J.; Schlobohm, S.; Watts, G.; Zhao, T.] Univ Washington, Seattle, WA 98195 USA.
[Alton, A.] Augustana Coll, Sioux Falls, SD USA.
[Burdin, S.] Univ Liverpool, Liverpool L69 3BX, Merseyside, England.
[Haas, A.; Partridge, R.] SLAC, Menlo Pk, CA USA.
[Juste, A.] ICREA IFAE, Barcelona, Spain.
[Luna-Garcia, R.] IPN, Ctr Invest Computac, Mexico City 07738, DF, Mexico.
[Podesta-Lerma, P. L. M.] Univ Autonoma Sinaloa, ECFM, Culiacan, Mexico.
[Weber, M.] Univ Bern, Bern, Switzerland.
RP Abazov, VM (reprint author), Joint Inst Nucl Res, Dubna, Russia.
RI Li, Liang/O-1107-2015; bu, xuebing/D-1121-2012; Merkin,
Mikhail/D-6809-2012; Dudko, Lev/D-7127-2012; Perfilov,
Maxim/E-1064-2012; Boos, Eduard/D-9748-2012; Novaes, Sergio/D-3532-2012;
Santos, Angelo/K-5552-2012; Mercadante, Pedro/K-1918-2012; Yip,
Kin/D-6860-2013; Wimpenny, Stephen/K-8848-2013; Gutierrez,
Phillip/C-1161-2011; Bolton, Tim/A-7951-2012; Fisher, Wade/N-4491-2013;
De, Kaushik/N-1953-2013; Ancu, Lucian Stefan/F-1812-2010; Alves,
Gilvan/C-4007-2013; Deliot, Frederic/F-3321-2014; Sharyy,
Viatcheslav/F-9057-2014; Lokajicek, Milos/G-7800-2014; Kupco,
Alexander/G-9713-2014; Kozelov, Alexander/J-3812-2014; Christoudias,
Theodoros/E-7305-2015; Guo, Jun/O-5202-2015; Gerbaudo,
Davide/J-4536-2012; Zhou, Ning/D-1123-2017
OI Li, Liang/0000-0001-6411-6107; Dudko, Lev/0000-0002-4462-3192; Novaes,
Sergio/0000-0003-0471-8549; Yip, Kin/0000-0002-8576-4311; Wimpenny,
Stephen/0000-0003-0505-4908; De, Kaushik/0000-0002-5647-4489; Ancu,
Lucian Stefan/0000-0001-5068-6723; Sharyy,
Viatcheslav/0000-0002-7161-2616; Christoudias,
Theodoros/0000-0001-9050-3880; Guo, Jun/0000-0001-8125-9433; Gerbaudo,
Davide/0000-0002-4463-0878;
FU DOE (USA); NSF (USA); CEA (France); CNRS/IN2P3 (France); FASI (Russia);
Rosatom and RFBR (Russia); CNPq (Brazil); FAPERJ (Brazil); FAPESP
(Brazil); FUNDUNESP (Brazil); DAE (India); DST (India); Colciencias
(Colombia); CONACyT (Mexico); KRF (Korea); KOSEF (Korea); CONICET
(Argentina); UBACyT (Argentina); FOM (The Netherlands); STFC; Royal
Society (United Kingdom); MSMT (Czech Republic); GACR (Czech Republic);
CRC (Canada); NSERC (Canada); BMBF (Germany); DFG (Germany); SFI
(Ireland); Swedish Research Council (Sweden); CAS (China); CNSF (China)
FX We thank the staffs at Fermilab and collaborating institutions, and
acknowledge support from the DOE and NSF (USA); CEA and CNRS/IN2P3
(France); FASI, Rosatom and RFBR (Russia); CNPq, FAPERJ, FAPESP and
FUNDUNESP (Brazil); DAE and DST (India); Colciencias (Colombia); CONACyT
(Mexico); KRF and KOSEF (Korea); CONICET and UBACyT (Argentina); FOM
(The Netherlands); STFC and the Royal Society (United Kingdom); MSMT and
GACR (Czech Republic); CRC Program and NSERC (Canada); BMBF and DFG
(Germany); SFI (Ireland); The Swedish Research Council (Sweden); and CAS
and CNSF (China).
NR 29
TC 50
Z9 50
U1 1
U2 7
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0370-2693
J9 PHYS LETT B
JI Phys. Lett. B
PD JAN 10
PY 2011
VL 695
IS 1-4
BP 88
EP 94
DI 10.1016/j.physletb.2010.10.059
PG 7
WC Astronomy & Astrophysics; Physics, Nuclear; Physics, Particles & Fields
SC Astronomy & Astrophysics; Physics
GA 713AZ
UT WOS:000286708700017
ER
PT J
AU Karsch, F
Redlich, K
AF Karsch, F.
Redlich, K.
TI Probing freeze-out conditions in heavy ion collisions with moments of
charge fluctuations
SO PHYSICS LETTERS B
LA English
DT Article
DE QCD phase diagram; Heavy ion collisions; Chiral phase transition; Charge
fluctuations; Particle freeze-out; Hadron resonance gas
ID RELATIVISTIC NUCLEAR COLLISIONS; THERMAL HADRON-PRODUCTION; QCD
PHASE-TRANSITION; TEMPERATURE; RESTORATION; DENSITY
AB We calculate the first four moments of baryon number, electric charge and strangeness fluctuations within the hadron resonance gas model. Different moments and their ratios as well as skewness and kurtosis are evaluated on the phenomenologically determined freeze-out curve in the temperature, baryon chemical potential plane. The model results and its predictions as well as relations between different moments are compared with the first data on net proton fluctuations in Au-Au collisions obtained at RHIC by the STAR Collaboration. We find good agreement between the model calculations and experimental results. We also point out that higher order moments should be more sensitive to critical behavior and will also distinguish hadron resonance gas model calculations from results obtained from lattice QCD. Published by Elsevier B.V.
C1 [Karsch, F.] Univ Bielefeld, Fak Phys, D-33501 Bielefeld, Germany.
[Karsch, F.] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA.
[Redlich, K.] Univ Wroclaw, Inst Theoret Phys, PL-50204 Wroclaw, Poland.
[Redlich, K.] CERN, Div Theory, CH-1211 Geneva 23, Switzerland.
RP Karsch, F (reprint author), Univ Bielefeld, Fak Phys, Postfach 100 131, D-33501 Bielefeld, Germany.
EM karsch@bnl.gov
FU Polish Ministry of Science; US Department of Energy [DE-AC02-98CH10886]
FX We acknowledge stimulating discussions with Tapan Nayak and Nu Xu. K.R.
also acknowledges fruitful discussions with A. Andronic and B. Friman
and the partial support of the Polish Ministry of Science. This work has
been supported in part by contract DE-AC02-98CH10886 with the US
Department of Energy.
NR 40
TC 132
Z9 135
U1 0
U2 6
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0370-2693
J9 PHYS LETT B
JI Phys. Lett. B
PD JAN 10
PY 2011
VL 695
IS 1-4
BP 136
EP 142
DI 10.1016/j.physletb.2010.10.046
PG 7
WC Astronomy & Astrophysics; Physics, Nuclear; Physics, Particles & Fields
SC Astronomy & Astrophysics; Physics
GA 713AZ
UT WOS:000286708700024
ER
PT J
AU Berg, LK
Kassianov, EI
Long, CN
Mills, DL
AF Berg, Larry K.
Kassianov, Evgueni I.
Long, Charles N.
Mills, David L., Jr.
TI Surface summertime radiative forcing by shallow cumuli at the
Atmospheric Radiation Measurement Southern Great Plains site
SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
LA English
DT Article
ID BOUNDARY-LAYER CLOUDS; SOLAR IRRADIANCE; SGP SITE; CLIMATOLOGY;
FRACTION; IMPACT; VALIDATION; FACILITY; PACIFIC; COVER
AB Although shallow cumuli are common over large areas of the globe, their impact on the surface cloud radiative forcing (CRF) has not been carefully evaluated. This study addresses this shortcoming by analyzing data collected during conditions with single-layer shallow cumuli over eight summers (2000 through 2007) at the U.S. Department of Energy Atmospheric Radiation Measurement (ARM) Southern Great Plains (SGP) site. During periods with clouds, the average shortwave and longwave CRF at the surface are -45.5 W m(-2) (out of 612 W m(-2) estimated for clear-sky conditions) and +15.9 W m(-2) (out of -105.2 W m(-2) estimated for clear-sky conditions), respectively. Instances of cloud-induced enhancement of the shortwave irradiance over that estimated for clear skies are observed approximately 20% of the time and are caused by spatial and temporal inhomogeneity of cumuli. Such enhancement is responsible for occurrences of positive shortwave CRF with instantaneous values as large as +75 W m(-2). The total amount of shortwave and longwave energy deposited at the surface over a period of time depends nonlinearly on the fractional sky cover, and the largest values of the deposited energy occur for intermediate cloud amounts between 0.4 and 0.6.
C1 [Berg, Larry K.; Kassianov, Evgueni I.; Long, Charles N.] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Mills, David L., Jr.] Univ S Carolina, Dept Comp Sci & Engn, Columbia, SC 29208 USA.
RP Berg, LK (reprint author), Pacific NW Natl Lab, POB 999, Richland, WA 99352 USA.
EM larry.berg@pnl.gov
RI Berg, Larry/A-7468-2016
OI Berg, Larry/0000-0002-3362-9492
FU Office of Biological and Environmental Research (OBER) of the U.S.
Department of Energy (DOE); DOE [DE-AC06-76RLO 1830]
FX The comments of two anonymous reviewers significantly improved this
manuscript. This work has been supported by the Office of Biological and
Environmental Research (OBER) of the U.S. Department of Energy (DOE) as
part of the Atmospheric Radiation Measurement (ARM), and Atmospheric
Systems Research (ASR) Programs. The Pacific Northwest National
Laboratory (PNNL) is operated by Battelle for the DOE under contract
DE-AC06-76RLO 1830. D. L. Mills was supported by a DOE Global Change
Education Program (GCEP) Summer Undergraduate Research Experience
(SURE). Recognition is also extended to those responsible for the
operation and maintenance of the instruments that produced the data used
in this study; their diligent and dedicated efforts are often
underappreciated.
NR 34
TC 21
Z9 23
U1 0
U2 10
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 2169-897X
EI 2169-8996
J9 J GEOPHYS RES-ATMOS
JI J. Geophys. Res.-Atmos.
PD JAN 8
PY 2011
VL 116
AR D01202
DI 10.1029/2010JD014593
PG 13
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 704MX
UT WOS:000286058200002
ER
PT J
AU Cao, JB
Wu, JQ
AF Cao, Jinbo
Wu, Junqiao
TI Strain effects in low-dimensional transition metal oxides
SO MATERIALS SCIENCE & ENGINEERING R-REPORTS
LA English
DT Review
DE Nanowire; Thin film; Strain; Transition metal oxide; Correlated electron
material; Phase transition
ID FERROELECTRIC THIN-FILMS; CHEMICAL-VAPOR-DEPOSITION; SINGLE ZNO
NANOWIRE; INSULATOR-TRANSITION; DIELECTRIC-PROPERTIES; PHASE-DIAGRAM;
RAMAN-SPECTROSCOPY; COLOSSAL MAGNETORESISTANCE; STRONTIUM-TITANATE;
DOMAIN-STRUCTURES
AB Transition metal oxides offer a wide spectrum of properties which provide the foundation for a broad range of potential applications. Many of these properties originate from intrinsic coupling between lattice deformation and nanoscale electronic and magnetic ordering. Lattice strain thus has a profound influence on the electrical, optical, and magnetic properties of these materials. Recent advances in materials processing have led to the synthesis of low-dimensional single-crystal transition metal oxides, namely, epitaxial ultra-thin films and free-standing nano/microwires. Unlike bulk materials, these systems allow external tuning of uniform strain in these materials to tailor their properties and functionalities.
This paper provides a comprehensive review of recent developments in studies of strain effects in transition metal oxide ultra-thin films and nano/microwires. In epitaxial thin films, biaxial strain is developed as a result of lattice mismatch between the film and the substrate. By choosing different substrates, a wide range of strain can be established at discrete values that allows for exploration of new phase space, enhancement of order parameters, creation of complicated domain textures, and stabilization of new phases. On the other hand, continuous tuning of uniaxial strain is possible in nano/microwires, where a variety of phase transitions and their dynamics could be probed at the single or few-domain scale. We focus on the work of strain-controlled electromechanical response in piezoelectric oxides and strain-induced metal-insulator transitions as well as domain physics in strongly correlated electron oxides. Related nanoscale device applications such as strain sensing and power generation will be highlighted as well. Published by Elsevier B.V.
C1 [Cao, Jinbo; Wu, Junqiao] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA.
[Cao, Jinbo; Wu, Junqiao] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA.
RP Cao, JB (reprint author), Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA.
EM jcao@lbl.gov
RI Cao, Jinbo/C-7537-2009; Wu, Junqiao/G-7840-2011
OI Wu, Junqiao/0000-0002-1498-0148
FU National Science Foundation [EEC-0832819]
FX We thank our colleagues and collaborators for sharing their insights on
projects related to the topic area, including C. Barrett, K. Chen, L.Q.
Chen, E. Ertekin, W. Fan, J.C. Grossman, Y. Gu, S. Huang, D.R. Khanal,
M. Kunz, D.F. Ogletree, V. Srinivasan, N. Tamura, Z.L. Wang, J.W.L. Yim,
R. Ramesh, E. Saiz, D.G. Schlom, J. Seidel, Q. Yuan, H. Zheng, and R.K.
Zheng. We greatly acknowledge the financial support of National Science
Foundation under Grant No. EEC-0832819.
NR 204
TC 52
Z9 52
U1 12
U2 145
PU ELSEVIER SCIENCE SA
PI LAUSANNE
PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND
SN 0927-796X
EI 1879-212X
J9 MAT SCI ENG R
JI Mater. Sci. Eng. R-Rep.
PD JAN 8
PY 2011
VL 71
IS 2-4
BP 35
EP 52
DI 10.1016/j.mser.2010.08.001
PG 18
WC Materials Science, Multidisciplinary; Physics, Applied
SC Materials Science; Physics
GA 701HR
UT WOS:000285809500001
ER
PT J
AU Nemer, MB
Xiong, YL
Ismail, AE
Jang, JH
AF Nemer, Martin B.
Xiong, Yongliang
Ismail, Ahmed E.
Jang, Je-Hun
TI Solubility of Fe-2(OH)(3)Cl (pure-iron end-member of hibbingite) in NaCl
and Na2SO4 brines
SO CHEMICAL GEOLOGY
LA English
DT Article
DE Fe-2(OH)(3)Cl; Fe(OH)(2); GR(II)SO4; hibbingite; green rust; Pitzer
model
ID GREEN RUST; OXIDATION; FE(II); METEORITES; BEARING; COMPLEX; FE
AB Pure-iron end-member hibbingite, Fe-2(OH)(3)Cl(s), may be important to geological repositories in salt formations, as it may be a dominant corrosion product of steel waste canisters in an anoxic environment in Na-Cl- and Na-Mg-Cl-dominated brines. In this study, the solubility of Fe-2(OH)(3)Cl(s), the pure-iron end-member of hibbingite (Fe-II, Mg)(2)(OH)(3)Cl(s), and Fe(OH)(2)(s) in 0.04 m to 6 m NaCl brines has been determined. For the reaction
Fe-2(OH)(3)Cl(s) + 3H(+)-3H(2)O + 2Fe(2+) + Cl- ,
the solubility constant of Fe-2(OH)(3)Cl(s) at infinite dilution and 25 degrees C has been found to be log(10)K = 17.12 +/- 0.15 (95% confidence interval using F statistics for 36 data points and 3 parameters). For the reaction
Fe(OH)(3)Cl(s) + 2H(+)-2H(2)O + Fe2+,
the solubility constant Of Fe(OH)(2) at infinite dilution and 25 degrees C has been found to be log(10)K = 12.95 +/- 0.13 (95% confidence interval using F statistics for 36 data points and 3 parameters). For the combined set of solubility data for Fe-2(OH)(3)Cl(s) and Fe(OH)(2)(s), the Na+-Fe2+ pair Pitzer interaction parameter theta(Na+/Fe2+) has been found to be 0.08 +/- 0.03 (95% confidence interval using F statistics for 36 data points and 3 parameters). In nearly saturated NaCl brine we observed evidence for the conversion of Fe(OH)(2)(s) to Fe-2(OH)(3)Cl(s). Additionally, when Fe-2(OH)(3)Cl(s) was added to sodium sulfate brines, the formation of green rust(II) sulfate was observed, along with the generation of hydrogen gas. The results presented here provide insight into understanding and modeling the geochemistry and performance assessment of nuclear waste repositories in salt formations. (C) 2010 Elsevier B.V. All rights reserved.
C1 [Nemer, Martin B.; Ismail, Ahmed E.] Sandia Natl Labs, Performance Assessment & Decis Anal Dept, Carlsbad Programs Grp, Carlsbad, NM 88220 USA.
[Xiong, Yongliang; Jang, Je-Hun] Sandia Natl Labs, Repository Performance Dept, Carlsbad Programs Grp, Carlsbad, NM 88220 USA.
RP Nemer, MB (reprint author), Sandia Natl Labs, Performance Assessment & Decis Anal Dept, Carlsbad Programs Grp, 4100 Natl Pk Highway, Carlsbad, NM 88220 USA.
EM mbnemer@sandia.gov; yxiong@sandia.gov
FU U.S. Department of Energy's National Nuclear Security Administration
[DE-AC04-94AL85000]; WIPP programs
FX Sandia National Laboratories is a multi-program laboratory operated by
Sandia Corporation, a wholly owned subsidiary of Lockheed Martin
company, for the U.S. Department of Energy's National Nuclear Security
Administration under contract DE-AC04-94AL85000. This research is funded
by WIPP programs administered by the U.S. Department of Energy.
NR 26
TC 8
Z9 8
U1 2
U2 20
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0009-2541
J9 CHEM GEOL
JI Chem. Geol.
PD JAN 7
PY 2011
VL 280
IS 1-2
BP 26
EP 32
DI 10.1016/j.chemgeo.2010.10.003
PG 7
WC Geochemistry & Geophysics
SC Geochemistry & Geophysics
GA 717BE
UT WOS:000287016400003
ER
PT J
AU Boukai, A
Haney, P
Katzenmeyer, A
Gallatin, GM
Talin, AA
Yang, PD
AF Boukai, Akram
Haney, Paul
Katzenmeyer, Aaron
Gallatin, Gregg M.
Talin, A. Alec
Yang, Peidong
TI Efficiency enhancement of copper contaminated radial p-n junction solar
cells
SO CHEMICAL PHYSICS LETTERS
LA English
DT Article
ID MULTICRYSTALLINE SILICON; RECOMBINATION ACTIVITY; ENERGY-CONVERSION;
METAL IMPURITIES
AB Radial p-n junction solar cells have been predicted theoretically to have better efficiencies than their planar counterparts due to a decrease in the distance required to collect minority carriers relative to carrier diffusion length. This advantage is also significantly enhanced when the diffusion length is much smaller than the absorption length. The radial p-n junctions studied here consist of micron-scale to nano-scale diameter holes etched into a copper contaminated silicon wafer. Radial p-n junctions contaminated with copper impurities show roughly a twofold increase in efficiency than similarly contaminated planar p-n junction solar cells; however the enhancement is a strong function of the radial junction pitch, with maximum enhancement occurring for a pitch that is twice the carrier diffusion length. (C) 2010 Elsevier B.V. All rights reserved.
C1 [Haney, Paul; Gallatin, Gregg M.; Talin, A. Alec] NIST, Ctr Nanosci & Technol, Gaithersburg, MD 20899 USA.
[Katzenmeyer, Aaron] Sandia Natl Labs, Livermore, CA USA.
[Boukai, Akram; Yang, Peidong] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.
EM p_yang@berkeley.edu
RI Gallatin, Gregg/H-1998-2012; Katzenmeyer, Aaron/F-7961-2014
OI Katzenmeyer, Aaron/0000-0002-5755-8537
FU United States Department of Energy's National Nuclear Security
Administration [DE-AC04-94AL85000]; NSF
FX Sandia is a multiprogram laboratory operated by Sandia Corporation, a
Lockheed Martin Company, for the United States Department of Energy's
National Nuclear Security Administration under Contract
DE-AC04-94AL85000. The experimental part of this work is supported by
National Science Foundation. A.B. thanks Erik Garnett for helpful
discussions and Tom Mates for assistance with SIMS. P.Y. thanks NSF for
the Waterman Award.
NR 23
TC 18
Z9 18
U1 0
U2 34
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0009-2614
J9 CHEM PHYS LETT
JI Chem. Phys. Lett.
PD JAN 7
PY 2011
VL 501
IS 4-6
BP 153
EP 158
DI 10.1016/j.cplett.2010.11.069
PG 6
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA 701OJ
UT WOS:000285829300001
ER
PT J
AU Sun, XQ
Wick, CD
Thallapally, PK
McGrail, BP
Dang, LX
AF Sun, Xiuquan
Wick, Collin D.
Thallapally, Praveen K.
McGrail, B. Peter
Dang, Liem X.
TI Molecular mechanism of hydrocarbons binding to the metal-organic
framework
SO CHEMICAL PHYSICS LETTERS
LA English
DT Article
ID DYNAMICS SIMULATIONS; ADSORPTION; SEPARATION; DIFFUSION; TEMPERATURE;
STABILITY; DESIGN; MOFS
AB The adsorption and diffusivity of methane, ethane, n-butane, n-hexane and cyclohexane in a metal organic framework (MOF) with the organic linker tetrakis[4-(carboxyphenyl)oxamethyl] methane, the metal salt, Zn2+, and an organic pillar, 4,4'-bipyridin was studied using molecular dynamics simulations. For the n-alkanes, the longer the chain, the lower the free energy of adsorption, which was attributed to a greater number of contacts between the alkane and MOF. Cyclohexane had a slightly higher adsorption free energy than n-hexane. Furthermore, for cyclo-and n-hexane, there were no significant differences in adsorption free energies between systems with low to moderate loadings. The diffusivity of the n-alkanes was found to strongly depend on chain length with slower diffusion for longer chains. Cyclohexane had no effective diffusion, suggesting the selectivity the MOF towards n-hexane over cyclohexane results from kinetics instead of thermodynamics. (C) 2010 Elsevier B. V. All rights reserved.
C1 [Sun, Xiuquan; Thallapally, Praveen K.; McGrail, B. Peter; Dang, Liem X.] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Wick, Collin D.] Louisiana Tech Univ, Ruston, LA 71270 USA.
RP Dang, LX (reprint author), Pacific NW Natl Lab, Richland, WA 99352 USA.
EM liem.dang@pnl.gov
RI thallapally, praveen/I-5026-2014
OI thallapally, praveen/0000-0001-7814-4467
FU Division of Chemical Sciences, Geosciences and Biosciences, Office of
Basic Energy Sciences; Office of Energy Efficiency and Renewable Energy,
U.S. Department of Energy (DOE); DOE [DE-AC05-76RL01830]
FX This work was supported by the Division of Chemical Sciences,
Geosciences and Biosciences, Office of Basic Energy Sciences, and by the
Office of Energy Efficiency and Renewable Energy, Geothermal
Technologies Program, U.S. Department of Energy (DOE). This manuscript
has been authored by Battelle Memorial Institute, Pacific Northwest
Division, under Contract No. DE-AC05-76RL01830 with the DOE. The United
States Government retains and the publisher, by accepting the article
for publication, acknowledges that the United States Government retains
a non-exclusive, paid-up, irrevocable, world-wide license to publish or
reproduce the published form of this manuscript, or allow others to do
so, for United States Government purposes.
NR 30
TC 4
Z9 4
U1 2
U2 35
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0009-2614
J9 CHEM PHYS LETT
JI Chem. Phys. Lett.
PD JAN 7
PY 2011
VL 501
IS 4-6
BP 455
EP 460
DI 10.1016/j.cplett.2010.11.070
PG 6
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA 701OJ
UT WOS:000285829300059
ER
PT J
AU Altunay, M
Leyffer, S
Linderoth, JT
Xie, Z
AF Altunay, Mine
Leyffer, Sven
Linderoth, Jeffrey T.
Xie, Zhen
TI Optimal response to attacks on the open science grid
SO COMPUTER NETWORKS
LA English
DT Article
DE Cybersecurity; Optimization; Network; Multiobjective; Integer
optimization
ID NETWORKS; DEFENSE; PROPAGATION; SIMULATION; GRAPHS
AB Cybersecurity is a growing concern, especially in open grids, where attack propagation is easy because of prevalent collaborations among thousands of users and hundreds of institutions. The collaboration rules that typically govern large science experiments as well as social networks of scientists span across the institutional security boundaries. A common concern is that the increased openness may allow malicious attackers to spread more readily around the grid.
We consider how to optimally respond to attacks in open grid environments. To show how and why attacks spread more readily around the grid, we first discuss how collaborations manifest themselves in the grids and form the collaboration network graph, and how this collaboration network graph affects the security threat levels of grid participants. We present two mixed-integer program (MIP) models to find the optimal response to attacks in open grid environments, and also calculate the threat level associated with each grid participant. Given an attack scenario, our optimal response model aims to minimize the threat levels at unaffected participants while maximizing the uninterrupted scientific production (continuing collaborations). By adopting some of the collaboration rules (e.g., suspending a collaboration or shutting down a site), the model finds optimal response to subvert an attack scenario. (C) 2010 Elsevier B.V. All rights reserved.
C1 [Leyffer, Sven; Xie, Zhen] Argonne Natl Lab, Div Math & Comp Sci, Argonne, IL 60439 USA.
[Altunay, Mine] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
[Linderoth, Jeffrey T.] Univ Wisconsin, Dept Ind & Syst Engn, Madison, WI 53706 USA.
RP Xie, Z (reprint author), Argonne Natl Lab, Div Math & Comp Sci, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM maltunay@fnal.gov; leyffer@mcs.anl.gov; linderoth@wisc.edu;
zhenxie@mcs.anl.gov
RI Linderoth, Jeffrey/B-4995-2013; Xie, Zhen/A-5087-2009
OI Linderoth, Jeffrey/0000-0003-4442-3059;
FU Office of Advanced Scientific Computing Research, Office of Science, US
Department of Energy [DE-AC02-06CH11357]; Argonne, a US Department of
Energy Office of Science laboratory [DE-AC02-06CH11357]
FX This work was supported by the Office of Advanced Scientific Computing
Research, Office of Science, US Department of Energy, under Contract No.
DE-AC02-06CH11357.; The submitted manuscript has been created by
UChicago Argonne, LLC, Operator of Argonne National Laboratory
("Argonne"). Argonne, a US Department of Energy Office of Science
laboratory, is operated under Contract No. DE-AC02-06CH11357. The US
Government retains for itself, and others acting on its behalf, a
paid-up nonexclusive, irrevocable worldwide license in said article to
reproduce, prepare derivative works, distribute copies to the public,
and perform publicly and display publicly, by or on behalf of the
Government.
NR 35
TC 5
Z9 5
U1 0
U2 5
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 1389-1286
EI 1872-7069
J9 COMPUT NETW
JI Comput. Netw.
PD JAN 7
PY 2011
VL 55
IS 1
BP 61
EP 73
DI 10.1016/j.comnet.2010.07.012
PG 13
WC Computer Science, Hardware & Architecture; Computer Science, Information
Systems; Engineering, Electrical & Electronic; Telecommunications
SC Computer Science; Engineering; Telecommunications
GA 718GH
UT WOS:000287108600006
ER
PT J
AU Dupuis, M
Kawano, T
Delaroche, JP
Bauge, E
AF Dupuis, M.
Kawano, T.
Delaroche, J. -P.
Bauge, E.
TI Microscopic model approach to (n,xn) pre-equilibrium reactions for
medium-energy neutrons
SO PHYSICAL REVIEW C
LA English
DT Article
ID CLOSED-SHELL NUCLEI; INELASTIC-SCATTERING; MULTISTEP COMPOUND; OCTUPOLE
RESONANCE; FOLDING MODEL; PB-208; EXCITATIONS; CONTINUUM; EMISSION;
STATES
AB We report on microscopic model calculations of the first step of direct pre-equilibrium (n,xn) emission in neutron interaction with (90)Zr and (208)Pb below 20 MeV. Our model is based on both an accurate description of the target excited states, provided by the self-consistent random-phase approximation (RPA) method implemented with the Gogny D1S force, and well-established in-medium two-body forces to represent the residual nucleon-nucleon interaction for the inelastic processes. Two goals have been achieved: The present microscopic approach provides a unified description of collective state excitations and the pre-equilibrium one-step process, and our reaction model reproduces the available data fairly well, without any parameter adjustment.
C1 [Dupuis, M.; Kawano, T.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
[Dupuis, M.; Delaroche, J. -P.; Bauge, E.] CEA, DAM, DIF, F-91297 Arpajon, France.
RP Dupuis, M (reprint author), Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
EM marc.dupuis@cea.fr
FU UNEDF SciDAC Collaboration; National Nuclear Security Administration of
the US Department of Energy at Los Alamos National Laboratory
[DE-AC52-06NA25396]
FX One of the authors (M.D.) is very grateful to D. Gogny for his advice
and guidance throughout the early stage of this work performed at
CEA-DAM Ile-de-France. He is also very grateful to J. Raynal for his
continuous assistance with the DWBA98 code. He also wishes to thank S.
Peru for helpful guidance with the RPA formalism and computer code. This
work was supported in part by the UNEDF SciDAC Collaboration and was
partly carried out under the auspices of the National Nuclear Security
Administration of the US Department of Energy at Los Alamos National
Laboratory under Contract No. DE-AC52-06NA25396.
NR 43
TC 8
Z9 8
U1 0
U2 2
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0556-2813
J9 PHYS REV C
JI Phys. Rev. C
PD JAN 7
PY 2011
VL 83
IS 1
AR 014602
DI 10.1103/PhysRevC.83.014602
PG 12
WC Physics, Nuclear
SC Physics
GA 713PN
UT WOS:000286750000003
ER
PT J
AU Sapirstein, J
Cheng, KT
AF Sapirstein, J.
Cheng, K. T.
TI S-matrix calculations of energy levels of the lithium isoelectronic
sequence
SO PHYSICAL REVIEW A
LA English
DT Article
ID CU-LIKE IONS; LI-LIKE; SELF-ENERGY; LAMB SHIFT; 2S(1/2)-2P(3/2) LEVELS;
TRANSITION ENERGIES; VACUUM POLARIZATION; ATOMIC SPECTRA; NA-LIKE;
NUCLEAR
AB A QED approach to the calculation of the spectra of the lithium isoelectronic sequence is implemented. A modified Furry representation based on the Kohn-Sham potential is used to evaluate all one- and two-photon diagrams with the exception of the two-loop Lamb shift. Three-photon diagrams are estimated with Hamiltonian methods. After incorporating recent calculations of the two-loop Lamb shift and recoil corrections, a comprehensive tabulation of the 2s, 2p(1/2), and 2p(3/2) energy levels as well as the 2s-2p(1/2) and 2s-2p(3/2) transition energies for Z = 10-100 is presented.
C1 [Sapirstein, J.] Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA.
[Cheng, K. T.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
RP Sapirstein, J (reprint author), Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA.
EM jsapirst@nd.edu; ktcheng@llnl.gov
FU NSF [PHY-0757125]; US Department of Energy by Lawrence Livermore
National Laboratory [DE-AC52-07NA27344]
FX The work of J.S. was supported in part by NSF Grant No. PHY-0757125. The
work of K.T.C. was performed under the auspices of the US Department of
Energy by Lawrence Livermore National Laboratory under Contract No.
DE-AC52-07NA27344.
NR 47
TC 21
Z9 21
U1 1
U2 8
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1050-2947
EI 1094-1622
J9 PHYS REV A
JI Phys. Rev. A
PD JAN 7
PY 2011
VL 83
IS 1
AR 012504
DI 10.1103/PhysRevA.83.012504
PG 15
WC Optics; Physics, Atomic, Molecular & Chemical
SC Optics; Physics
GA 713IY
UT WOS:000286732900006
ER
PT J
AU Stadler, B
Price, AD
Zelikin, AN
AF Staedler, Brigitte
Price, Andrew D.
Zelikin, Alexander N.
TI A Critical Look at Multilayered Polymer Capsules in Biomedicine: Drug
Carriers, Artificial Organelles, and Cell Mimics
SO ADVANCED FUNCTIONAL MATERIALS
LA English
DT Article
ID HOLLOW POLYELECTROLYTE MICROCAPSULES; BLOCK-COPOLYMER MICELLES;
ENZYME-LOADED LIPOSOMES; HYDROGEL CAPSULES; ANTIGEN PRESENTATION; ATP
BIOSYNTHESIS; DELIVERY VEHICLE; IN-VITRO; EN-ROUTE; VESICLES
AB This Feature Article discusses utility of multilayered polymer capsules in biomedicine, specifically in drug delivery and in design of artificial organelles and cells. We provide a critical view on recent successes and identified shortcomings of these capsules in delivery of therapeutic cargo and outline plausible further developments of capsules as candidate drug carriers. A special emphasis is placed on poly(methacrylic acid) hydrogel capsules as successful carriers used in delivery of anticancer drugs and protein and peptide vaccines. We further present a novel biomedical approach whereby the same vessel acts first as a microreactor and then as a carrier for de novo synthesized therapeutic cargo. Finally, utility of polymer capsules in design of cell mimics is discussed with an emphasis on assembly and performance of capsosomes, polymer capsules with liposomal subcompartments. This presentation of capsules in biomedicine aims to provide an overview of past achievements and existing challenges associated with these candidate vessels and to stimulate further research interest from a broad scientific audience.
C1 [Staedler, Brigitte; Zelikin, Alexander N.] Aarhus Univ, Interdisciplinary Nanosci Ctr iNano, DK-8000 Aarhus C, Denmark.
[Price, Andrew D.] Sandia Natl Labs, Dept CINT Sci, Albuquerque, NM 87185 USA.
[Zelikin, Alexander N.] Aarhus Univ, Dept Chem, DK-8000 Aarhus C, Denmark.
RP Stadler, B (reprint author), Aarhus Univ, Interdisciplinary Nanosci Ctr iNano, DK-8000 Aarhus C, Denmark.
EM bstadler@inano.au.dk; adprice@sandia.gov; zelikin@chem.au.dk
RI Zelikin, Alexander/J-3659-2012; Stadler, Brigitte/I-2661-2013;
OI Zelikin, Alexander/0000-0002-9864-321X; Stadler,
Brigitte/0000-0002-7335-3945
FU U.S. Department of Energy's National Nuclear Security Administration
[DE-AC04-94AL85000]
FX Sandia National Laboratories is a multi-program laboratory operated by
Sandia Corporation, a wholly owned subsidiary of Lockheed Martin
company, for the U.S. Department of Energy's National Nuclear Security
Administration under contract DE-AC04-94AL85000.
NR 105
TC 51
Z9 51
U1 6
U2 80
PU WILEY-V C H VERLAG GMBH
PI WEINHEIM
PA PO BOX 10 11 61, D-69451 WEINHEIM, GERMANY
SN 1616-301X
J9 ADV FUNCT MATER
JI Adv. Funct. Mater.
PD JAN 7
PY 2011
VL 21
IS 1
BP 14
EP 28
DI 10.1002/adfm.201001676
PG 15
WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience &
Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied;
Physics, Condensed Matter
SC Chemistry; Science & Technology - Other Topics; Materials Science;
Physics
GA 700FI
UT WOS:000285723000001
ER
PT J
AU Wang, C
Chi, MF
Wang, GF
van der Vliet, D
Li, DG
More, K
Wang, HH
Schlueter, JA
Markovic, NM
Stamenkovic, VR
AF Wang, Chao
Chi, Miaofang
Wang, Guofeng
van der Vliet, Dennis
Li, Dongguo
More, Karren
Wang, Hsien-Hau
Schlueter, John A.
Markovic, Nenad M.
Stamenkovic, Vojislav R.
TI Correlation Between Surface Chemistry and Electrocatalytic Properties of
Monodisperse PtxNi1-x Nanoparticles
SO ADVANCED FUNCTIONAL MATERIALS
LA English
DT Article
ID OXYGEN REDUCTION ACTIVITY; PEM FUEL-CELLS; ALLOY CATALYSTS; NIXPT1-X
NANOPARTICLES; ELECTRONIC-STRUCTURE; NI; CO; SIZE; FE; DISSOLUTION
AB Monodisperse and homogeneous PtxNi1-x alloy nanoparticles of various compositions are synthesized via an organic solution approach in order to reveal the correlation between surface chemistry and their electrocatalytic properties. Atomic-level microscopic analysis of the compositional profile and modeling of nanoparticle structure are combined to follow the dependence of Ni dissolution on the initial alloy composition and formation of the Pt-skeleton nanostructures. The developed approach and acquired knowledge about surface structure-property correlation can be further generalized and applied towards the design of advanced functional nanomaterials.
C1 [Wang, Chao; van der Vliet, Dennis; Li, Dongguo; Wang, Hsien-Hau; Schlueter, John A.; Markovic, Nenad M.; Stamenkovic, Vojislav R.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60559 USA.
[Chi, Miaofang; More, Karren] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA.
[Wang, Guofeng] Indiana Univ Purdue Univ, Dept Mech Engn, Indianapolis, IN 46202 USA.
RP Wang, C (reprint author), Argonne Natl Lab, Div Mat Sci, Argonne, IL 60559 USA.
EM vrstamenkovic@anl.gov
RI Wang, Chao/F-4558-2012; van der Vliet, Dennis/P-2983-2015; Chi,
Miaofang/Q-2489-2015; More, Karren/A-8097-2016; Li, Dongguo/O-6253-2016
OI Wang, Chao/0000-0001-7398-2090; van der Vliet,
Dennis/0000-0002-2524-527X; Chi, Miaofang/0000-0003-0764-1567; More,
Karren/0000-0001-5223-9097; Li, Dongguo/0000-0001-7578-7811
FU Argonne National Laboratory, a U.S. Department of Energy, Office of
Science Laboratory [DE-AC02-06CH11357]; U.S. Department of Energy,
Office of Energy Efficiency and Renewable Energy; Scientific User
Facilities Division, Office of Basic Energy Sciences, the U.S.
Department of Energy
FX This work was conducted at Argonne National Laboratory, a U.S.
Department of Energy, Office of Science Laboratory, operated by UChicago
Argonne, LLC, under contract no. DE-AC02-06CH11357. This research was
sponsored by the U.S. Department of Energy, Office of Energy Efficiency
and Renewable Energy, Fuel Cell Technologies Program. Microscopy
research was conducted at the Electron Microscopy Center for Materials
Research at Argonne, and ORNL's SHaRE User Facility, sponsored by the
Scientific User Facilities Division, Office of Basic Energy Sciences,
the U.S. Department of Energy.
NR 39
TC 126
Z9 126
U1 15
U2 116
PU WILEY-BLACKWELL
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 1616-301X
J9 ADV FUNCT MATER
JI Adv. Funct. Mater.
PD JAN 7
PY 2011
VL 21
IS 1
BP 147
EP 152
DI 10.1002/adfm.201001138
PG 6
WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience &
Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied;
Physics, Condensed Matter
SC Chemistry; Science & Technology - Other Topics; Materials Science;
Physics
GA 700FI
UT WOS:000285723000016
ER
PT J
AU Whitaker, MJ
Pattanaik, B
Montgomery, BL
AF Whitaker, Melissa J.
Pattanaik, Bagmi
Montgomery, Beronda L.
TI Characterization of green mutants in Fremyella diplosiphon provides
insight into the impact of phycoerythrin deficiency and linker function
on complementary chromatic adaptation
SO BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS
LA English
DT Article
DE Complementary chromatic adaptation; Morphology; Photosensing;
Phycobiliprotein; Phycobiliprotein linker; Pigmentation
ID CELLULAR MORPHOLOGY; PCC 7601; LIGHT; CYANOBACTERIUM; EXPRESSION; GENES;
PHOTOREGULATION; PHYCOBILISOMES; TRANSCRIPTION; BIOSYNTHESIS
AB Functions of phycobiliprotein (PBP) linkers are less well studied than other PBP polypeptides that are structural components or required for the synthesis of the light-harvesting phycobilisome (PBS) complexes. Linkers serve both structural and functional roles in PBSs. Here, we report the isolation of a phycoerythrin (PE) rod-linker mutant and a novel PE-deficient mutant in Fremyella diplosiphon. We describe their phenotypic characterization, including light-dependent photosynthetic pigment accumulation and photoregulation of cellular morphology. PE-linker protein CpeE and a novel protein impact PE accumulation, and thus PBS function, primarily under green light conditions. (C) 2010 Elsevier Inc. All rights reserved.
C1 [Whitaker, Melissa J.; Pattanaik, Bagmi; Montgomery, Beronda L.] Michigan State Univ, Dept Energy, Plant Res Lab, E Lansing, MI 48824 USA.
[Montgomery, Beronda L.] Michigan State Univ, Dept Biochem & Mol Biol, E Lansing, MI 48824 USA.
RP Montgomery, BL (reprint author), Michigan State Univ, MSU DOE Plant Res Lab, 106 Plant Biol Bldg, E Lansing, MI 48824 USA.
EM montg133@msu.edu
FU US Department of Energy (Chemical Sciences, Geosciences and Biosciences
Division, Office of Basic Energy Sciences, Office of Science)
[DE-FG02-91ER20021]; National Science Foundation [MCB-0643516]
FX We thank Jessica Morales and Cyrus Gharai for technical assistance, Dr.
Shailendra Singh for critically reading and commenting on the
manuscript, Karen Bird for editorial assistance, and Marlene Cameron for
graphical design assistance. This research was supported by the US
Department of Energy (Chemical Sciences, Geosciences and Biosciences
Division, Office of Basic Energy Sciences, Office of Science, Grant No.
DE-FG02-91ER20021 to B.L.M.) and a CAREER award from the National
Science Foundation (Grant No. MCB-0643516 to B.L.M.).
NR 30
TC 4
Z9 4
U1 0
U2 8
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 0006-291X
J9 BIOCHEM BIOPH RES CO
JI Biochem. Biophys. Res. Commun.
PD JAN 7
PY 2011
VL 404
IS 1
BP 52
EP 56
DI 10.1016/j.bbrc.2010.11.056
PG 5
WC Biochemistry & Molecular Biology; Biophysics
SC Biochemistry & Molecular Biology; Biophysics
GA 710CE
UT WOS:000286487700010
PM 21094137
ER
PT J
AU Noda, T
Takahashi, A
Kondo, N
Mori, E
Okamoto, N
Nakagawa, Y
Ohnishi, K
Zdzienicka, MZ
Thompson, LH
Helleday, T
Asada, H
Ohnishi, T
AF Noda, Taichi
Takahashi, Akihisa
Kondo, Natsuko
Mori, Eiichiro
Okamoto, Noritomo
Nakagawa, Yosuke
Ohnishi, Ken
Zdzienicka, Malgorzata Z.
Thompson, Larry H.
Helleday, Thomas
Asada, Hideo
Ohnishi, Takeo
TI Repair pathways independent of the Fanconi anemia nuclear core complex
play a predominant role in mitigating formaldehyde-induced DNA damage
SO BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS
LA English
DT Article
DE FANCD1; Formaldehyde; DNA repair; Cross-link damage
ID DOUBLE-STRAND BREAKS; HOMOLOGOUS RECOMBINATION; MAMMALIAN-CELLS;
PROTEIN; BRCA2; FANCD2; MONOUBIQUITINATION; TEMOZOLOMIDE; SENSITIVITY;
DEFICIENCY
AB The role of the Fanconi anemia (FA) repair pathway for DNA damage induced by formaldehyde was examined in the work described here. The following cell types were used: mouse embryonic fibroblast cell lines FANCA(-/-), FANCC(-/-), FANCA(-/-)C(-/-), FANCD2(-/-) and their parental cells, the Chinese hamster cell lines FANCD1 mutant (mt), FANCGmt, their revertant cells, and the corresponding wild-type (wt) cells. Cell survival rates were determined with colony formation assays after formaldehyde treatment. DNA double strand breaks (DSBs)were detected with an immunocytochemical gamma H2AX-staining assay. Although the sensitivity of FANCA(-/-), FANCC(-/-) and FANCA(-/-)C(-/-) cells to formaldehyde was comparable to that of proficient cells, FANCD1mt, FANCGmt and FANCD2-/- cells were more sensitive to formaldehyde than the corresponding proficient cells. It was found that homologous recombination (HR) repair was induced by formaldehyde. In addition, gamma H2AX foci in FANCD1mt cells persisted for longer times than in FANCD1wt cells. These findings suggest that formaldehyde-induced DSBs are repaired by HR through the FA repair pathway which is independent of the FA nuclear core complex. (C) 2010 Elsevier Inc. All rights reserved.
C1 [Ohnishi, Takeo] Nara Med Univ, Sch Med, Dept Radiat Oncol, Nara 6348521, Japan.
[Noda, Taichi; Takahashi, Akihisa; Mori, Eiichiro] Nara Med Univ, Sch Med, Dept Biol, Nara 6348521, Japan.
[Noda, Taichi; Asada, Hideo] Nara Med Univ, Sch Med, Dept Dermatol, Nara 6348521, Japan.
[Kondo, Natsuko] Kyoto Univ, Inst Res Reactor, Particle Radiat Oncol Res Ctr, Kumatori, Osaka 5900494, Japan.
[Okamoto, Noritomo] Nara Med Univ, Sch Med, Dept Otorhinolaryngol, Nara 6348521, Japan.
[Nakagawa, Yosuke] Nara Med Univ, Sch Med, Dept Oral & Maxillofacial Surg, Nara 6348521, Japan.
[Ohnishi, Ken] Ibaraki Prefectual Univ Hlth Sci, Dept Biol, Ami, Ibaraki 3000394, Japan.
[Zdzienicka, Malgorzata Z.] Nicholas Copernicus Univ Torun, Coll Med Bydgoszcz, Dept Mol Cell Genetics, PL-85094 Bydgoszcz, Poland.
[Thompson, Larry H.] Lawrence Livermore Natl Lab, Biosci & Biotechnol Div, Livermore, CA 94551 USA.
[Helleday, Thomas] Univ Oxford, Gray Inst Radiat Oncol & Biol, Oxford OX3 7DQ, England.
[Helleday, Thomas] Stockholm Univ, Dept Genet Microbiol & Toxicol, SE-10691 Stockholm, Sweden.
RP Ohnishi, T (reprint author), Nara Med Univ, Sch Med, Dept Radiat Oncol, 840 Shijo Cho, Nara 6348521, Japan.
EM tohnishi@naramed-u.ac.jp
RI Helleday, Thomas/D-5224-2013;
OI Helleday, Thomas/0000-0002-7384-092X
FU Ministry of Education, Culture, Sports, Science and Technology of Japan;
Research on Indoor Environmental Medicine of Nara Medical University
FX This work was supported by Grants-in-Aid for Scientific Research from
the Ministry of Education, Culture, Sports, Science and Technology of
Japan, and Grants-in-Aid for Research on Indoor Environmental Medicine
of Nara Medical University.
NR 33
TC 11
Z9 14
U1 0
U2 12
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 0006-291X
J9 BIOCHEM BIOPH RES CO
JI Biochem. Biophys. Res. Commun.
PD JAN 7
PY 2011
VL 404
IS 1
BP 206
EP 210
DI 10.1016/j.bbrc.2010.11.094
PG 5
WC Biochemistry & Molecular Biology; Biophysics
SC Biochemistry & Molecular Biology; Biophysics
GA 710CE
UT WOS:000286487700037
PM 21111709
ER
PT J
AU Zhang, YF
Buchko, GW
Qin, L
Robinson, H
Varnum, SM
AF Zhang, Yanfeng
Buchko, Garry W.
Qin, Ling
Robinson, Howard
Varnum, Susan M.
TI Crystal structure of the receptor binding domain of the botulinum C-D
mosaic neurotoxin reveals potential roles of lysines 1118 and 1136 in
membrane interactions
SO BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS
LA English
DT Article
DE Botulinum neurotoxin; C-D mosaic; Botulism; Phosphatidylethanolamine;
Membrane recognition
ID CLOSTRIDIUM-BOTULINUM; HEAVY-CHAIN; SEROTYPE D; IDENTIFICATION;
TRANSLOCATION; GANGLIOSIDE; TETANUS; TOXINS
AB The botulinum neurotoxins (BoNTs) produced by different strains of the bacterium Clostridium botulinum are responsible for the disease botulism and include a group of immunologically distinct serotypes (A, B, E, and F) that are considered to be the most lethal natural proteins known for humans. Two BoNT serotypes, C and D, while rarely associated with human infection, are responsible for deadly botulism outbreaks afflicting animals. Also associated with animal infections is the BoNT C-D mosaic protein (BoNT/CD), a BoNT subtype that is essentially a hybrid of the BoNT/C (similar to two-third) and BoNT/D (similar to one-third) serotypes. While the amino acid sequence of the heavy chain receptor binding (HCR) domain of BoNT/CD (BoNT/CD-HCR) is very similar to the corresponding amino acid sequence of BoNT/D, BoNT/CD-HCR binds synaptosome membranes better than BoNT/D-HCR. To obtain structural insights for the different membrane binding properties, the crystal structure of BoNT/CD-HCR (S867-E1280) was determined at 1.56 angstrom resolution and compared to previously reported structures for BoNT/D-HCR. Overall, the BoNT/CD-HCR structure is similar to the two sub-domain organization observed for other BoNT HCRs: an N-terminal jellyroll barrel motif and a C-terminal beta-trefoil fold. Comparison of the structure of BoNT/CD-HCR with BoNT/D-HCR indicates that K1118 has a similar structural role as the equivalent residue. E1114, in BoNT/D-HCR, while K1136 has a structurally different role than the equivalent residue, G1132, in BoNT/D-HCR. Lysine-1118 forms a salt bridge with E1247 and may enhance membrane interactions by stabilizing the putative membrane binding loop (K1240-N1248). Lysine-1136 is observed on the surface of the protein. A sulfate ion bound to K1136 may mimic a natural interaction with the negatively changed phospholipid membrane surface. Liposome-binding experiments demonstrate that BoNT/CD-HCR binds phosphatidylethanolamine liposomes more tightly than BoNT/D-HCR. (C) 2010 Elsevier Inc. All rights reserved.
C1 [Zhang, Yanfeng; Buchko, Garry W.; Varnum, Susan M.] Pacific NW Natl Lab, Cell Biol & Biochem Grp, Div Biol Sci, Richland, WA 99352 USA.
[Buchko, Garry W.] Pacific NW Natl Lab, Seattle Struct Genom Ctr Infect Dis, Div Biol Sci, Richland, WA 99352 USA.
[Qin, Ling] Michigan State Univ, Dept Biochem & Mol Biol, E Lansing, MI 48824 USA.
[Robinson, Howard] Brookhaven Natl Lab, Dept Biol, Upton, NY 11973 USA.
RP Varnum, SM (reprint author), Pacific NW Natl Lab, Cell Biol & Biochem Grp, Div Biol Sci, Richland, WA 99352 USA.
EM susan.varnum@pnl.gov
RI Buchko, Garry/G-6173-2015
OI Buchko, Garry/0000-0002-3639-1061
FU National Institute of Allergy and Infectious Diseases (NIAID)
[U01AI081895, HHSN272200700057C]; US Department of Energy (DOE)'s Office
of Biological and Environmental Research (OBER) at Pacific Northwest
National Laboratory (PNNL); US DOE [AC06-76RLO 1830]; OBER; Basic Energy
Sciences of the US DOE; National Center for Research Resources of the
NIH
FX This research was supported by the National Institute of Allergy and
Infectious Diseases (NIAID) through award number U01AI081895 and Federal
Contract No. HHSN272200700057C. The structure of BoNT/CD-HCR was a
community request made to the Seattle Structural Genomics Center for
Infectious Disease (SSG-CID) and was given the internal identification
code ClboA.17807.a. Portions of the research was performed at the W.R.
Wiley Environmental Molecular Sciences Laboratory, a national scientific
user facility sponsored by US Department of Energy (DOE)'s Office of
Biological and Environmental Research (OBER) program located at Pacific
Northwest National Laboratory (PNNL). PNNL is operated by Battelle for
the US DOE under contract (AC06-76RLO 1830). Data for this study were
collected on beamline X29A at the National Synchrotron Light Source
(NSLS) located at Brookhaven National Laboratory. Financial support for
NSLS comes principally from OBER and the Basic Energy Sciences of the US
DOE, and from the National Center for Research Resources of the NIH.
NR 28
TC 15
Z9 15
U1 1
U2 9
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 0006-291X
J9 BIOCHEM BIOPH RES CO
JI Biochem. Biophys. Res. Commun.
PD JAN 7
PY 2011
VL 404
IS 1
BP 407
EP 412
DI 10.1016/j.bbrc.2010.11.134
PG 6
WC Biochemistry & Molecular Biology; Biophysics
SC Biochemistry & Molecular Biology; Biophysics
GA 710CE
UT WOS:000286487700072
PM 21130733
ER
PT J
AU Kamada, R
Nomura, T
Anderson, CW
Sakaguchi, K
AF Kamada, Rui
Nomura, Takao
Anderson, Carl W.
Sakaguchi, Kazuyasu
TI Cancer-associated p53 Tetramerization Domain Mutants QUANTITATIVE
ANALYSIS REVEALS A LOW THRESHOLD FOR TUMOR SUPPRESSOR INACTIVATION
SO JOURNAL OF BIOLOGICAL CHEMISTRY
LA English
DT Article
ID DNA-BINDING DOMAIN; OLIGOMERIZATION DOMAIN; MISSENSE MUTATION;
CRYSTAL-STRUCTURE; NUCLEAR EXPORT; LI-FRAUMENI; C-TERMINUS; PROTEIN;
PHOSPHORYLATION; STABILITY
AB The tumor suppressor p53, a 393-amino acid transcription factor, induces cell cycle arrest and apoptosis in response to genotoxic stress. Its inactivation via the mutation of its gene is a key step in tumor progression, and tetramer formation is critical for p53 post-translational modification and its ability to activate or repress the transcription of target genes vital in inhibiting tumor growth. About 50% of human tumors have TP53 gene mutations; most are missense ones that presumably lower the tumor suppressor activity of p53. In this study, we explored the effects of known tumor-derived missense mutations on the stability and oligomeric structure of p53; our comprehensive, quantitative analyses encompassed the tetramerization domain peptides representing 49 such substitutions in humans. Their effects on tetrameric structure were broad, and the stability of the mutant peptides varied widely (Delta T(m) = 4.8 similar to -46.8 degrees C). Because formation of a tetrameric structure is critical for protein-protein interactions, DNA binding, and the post-translational modification of p53, a small destabilization of the tetrameric structure could result in dysfunction of tumor suppressor activity. We suggest that the threshold for loss of tumor suppressor activity in terms of the disruption of the tetrameric structure of p53 could be extremely low. However, other properties of the tetramerization domain, such as electrostatic surface potential and its ability to bind partner proteins, also may be important.
C1 [Kamada, Rui; Nomura, Takao; Sakaguchi, Kazuyasu] Hokkaido Univ, Fac Sci, Dept Chem, Biol Chem Lab, Sapporo, Hokkaido 0600810, Japan.
[Anderson, Carl W.] Brookhaven Natl Lab, Dept Biol, Upton, NY 11973 USA.
RP Sakaguchi, K (reprint author), North 10,West 8,Kita Ku, Sapporo, Hokkaido 0600810, Japan.
EM kazuyasu@sci.hokudai.ac.jp
FU Ministry of Education, Culture, Sports, Science and Technology and
Scientific Research [16041202]; Japan Society for the Promotion of
Science [21310133, 18310140, 20004981, 19001703]; Brookhaven National
Laboratory; U.S. Department of Energy
FX This work was supported in part by Grants-in-aid for Scientific Research
on Priority Areas 16041202 from The Ministry of Education, Culture,
Sports, Science and Technology and Scientific Research (B) 21310133 and
18310140 from Japan Society for the Promotion of Science (to K. S.),
"Molecular and System Life Science" Promotion of Novel Interdisciplinary
Fields Based on Nanotechnology and Materials from The Ministry of
Education, Culture, Sports, Science and Technology (to K. S.), Research
Fellowships of the Japan Society for the Promotion of Science for Young
Scientists 20004981 (to R. K.) and 19001703 (to T. N.) from Japan
Society for the Promotion of Science, and Program Development funds from
the Brookhaven National Laboratory under contract with the U.S.
Department of Energy (to C. W. A.).
NR 55
TC 17
Z9 17
U1 0
U2 4
PU AMER SOC BIOCHEMISTRY MOLECULAR BIOLOGY INC
PI BETHESDA
PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3996 USA
SN 0021-9258
J9 J BIOL CHEM
JI J. Biol. Chem.
PD JAN 7
PY 2011
VL 286
IS 1
BP 252
EP 258
DI 10.1074/jbc.M110.174698
PG 7
WC Biochemistry & Molecular Biology
SC Biochemistry & Molecular Biology
GA 700YZ
UT WOS:000285782800028
PM 20978130
ER
PT J
AU Poutsma, ML
AF Poutsma, Marvin L.
TI The Radical Stabilization Energy of a Substituted Carbon-Centered Free
Radical Depends on Both the Functionality of the Substituent and the
Ordinality of the Radical
SO JOURNAL OF ORGANIC CHEMISTRY
LA English
DT Article
ID BOND-DISSOCIATION ENERGIES; METHYL RADICALS; CHEMICAL-BOND; AB-INITIO;
T-BU; I-PR; STABILITY; ENTHALPIES; ELECTRONEGATIVITY; HYPERCONJUGATION
AB Chemical intuition suggests that the stabilization of a carbon-centered free radical by a substituent X would be the greatest for a prim and least for a more stable tert radical because of "saturation". However, analysis of a comprehensive recent set of bond dissociation energies computed by Coote and co-workers (Phys. Chem. Chem. Phys. 2010, 12, 9597) and transformed into radical stabilization energies (RSE) suggests that this supposition is often violated. The RSE for a given X depends not only on the nature of X but also on the ordinality (i.e., prim, sec, or tert) of the radical onto which it is substituted. For substituents that stabilize by electron delocalization but also contain electron-withdrawing centers, such as the carbonyl function, the stabilization of XCMe(2)(center dot) compared with HCMe(2)(center dot) is greater than that for XCH(2)(center dot) compared with HCH(2)(center dot). However, for substituents that stabilize by lone-pair electron donation, such as N or O centers, the order is strongly reversed. This contrast can be qualitatively rationalized by considering charge-separated VB contributors to the radical structure (R2C(+)-X-(center dot) and R(2)C(-)-X(+center dot)) and the contrasting effects of methyl substituents on them. This conclusion is not dependent on the particular definition used for RSE.
C1 Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA.
RP Poutsma, ML (reprint author), Oak Ridge Natl Lab, Div Chem Sci, POB 2008, Oak Ridge, TN 37831 USA.
EM poutsmaml@ornl.gov
FU Division of Chemical Sciences, Geosciences and Biosciences, Office of
Basic Energy Sciences, U.S. Department of Energy
FX This research was sponsored by the Division of Chemical Sciences,
Geosciences and Biosciences, Office of Basic Energy Sciences, U.S.
Department of Energy.
NR 33
TC 11
Z9 11
U1 2
U2 21
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0022-3263
J9 J ORG CHEM
JI J. Org. Chem.
PD JAN 7
PY 2011
VL 76
IS 1
BP 270
EP 276
DI 10.1021/jo102097n
PG 7
WC Chemistry, Organic
SC Chemistry
GA 700AH
UT WOS:000285704000030
PM 21141915
ER
PT J
AU Zhang, ZY
Li, MJ
Wu, ZL
Li, WZ
AF Zhang, Zhiyong
Li, Meijun
Wu, Zili
Li, Wenzhen
TI Ultra-thin PtFe-nanowires as durable electrocatalysts for fuel cells
SO NANOTECHNOLOGY
LA English
DT Article
ID OXYGEN-REDUCTION; CATHODE CATALYST; CARBON NANOTUBES; ALLOY CATALYSTS;
DURABILITY; CO; PLATINUM; SUPPORT; FE; NI
AB Ultra-thin PtxFey-nanowires (PtxFey-NWs) with a diameter of 2-3 nm were successfully prepared through a solution-phase reduction method at Pt-Fe compositions from 1: 1 to 2:1. The carbon supported PtxFey-NWs (PtxFey-NWs/C) demonstrated higher oxygen reduction reaction (ORR) activity and better electrochemical durability than conventional Pt/C catalyst. After 1000 cycles of 0-1.3 V (versus RHE), the relative electrochemical surface area (ECSA) of Pt2Fe1-NW/C dropped down to 46%, which was two times better than Pt/C catalyst, and the mass activity at 0.85 V (versus RHE) for Pt1Fe1-NW/C was 39.9 mAmg(-1)-(Pt), which is twice that for Pt/C (18.6 mA mg(-1)-(Pt)).
C1 [Zhang, Zhiyong; Li, Wenzhen] Michigan Technol Univ, Dept Chem Engn, Houghton, MI 49931 USA.
[Li, Meijun; Wu, Zili] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA.
[Li, Meijun; Wu, Zili] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA.
RP Zhang, ZY (reprint author), Michigan Technol Univ, Dept Chem Engn, Houghton, MI 49931 USA.
EM wzli@mtu.edu
RI Wu, Zili/F-5905-2012; Zhang, Zhiyong/H-5611-2012
OI Wu, Zili/0000-0002-4468-3240; Zhang, Zhiyong/0000-0001-7936-9510
FU ACS-PRF-DNI; NSF-CBET [1032547]; Division of Scientific User Facilities,
US Department of Energy at Oak Ridge National Laboratory
FX This work is supported by ACS-PRF-DNI and NSF-CBET 1032547. A portion of
this research was conducted at the Center for Nanophase Materials
Sciences, which is sponsored at Oak Ridge National Laboratory by the
Division of Scientific User Facilities, US Department of Energy. The
research was supported in part by the appointment for M J Li to the ORNL
Research Associates Program, administered jointly by ORNL and the Oak
Ridge Associated Universities.
NR 27
TC 24
Z9 24
U1 7
U2 28
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0957-4484
EI 1361-6528
J9 NANOTECHNOLOGY
JI Nanotechnology
PD JAN 7
PY 2011
VL 22
IS 1
AR 015602
DI 10.1088/0957-4484/22/1/015602
PG 5
WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary;
Physics, Applied
SC Science & Technology - Other Topics; Materials Science; Physics
GA 690KX
UT WOS:000285004800014
PM 21135465
ER
PT J
AU Khachatryan, V
Sirunyan, AM
Tumasyan, A
Adam, W
Bergauer, T
Dragicevic, M
Ero, J
Fabjan, C
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Teischinger, F
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Thomas, L
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CA CMS Collaboration
TI Search for Stopped Gluinos in pp Collisions at root s=7 TeV
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID HADRON COLLIDERS; PARTICLES; SUPERSYMMETRY; SQUARK
AB The results of the first search for long-lived gluinos produced in 7 TeV pp collisions at the CERN Large Hadron Collider are presented. The search looks for evidence of long-lived particles that stop in the CMS detector and decay in the quiescent periods between beam crossings. In a dataset with a peak instantaneous luminosity of 1 x 10(32) cm(-2) s(-1), an integrated luminosity of 10 pb(-1), and a search interval corresponding to 62 hours of LHC operation, no significant excess above background was observed. Limits at the 95% confidence level on gluino pair production over 13 orders of magnitude of gluino lifetime are set. For a mass difference m((g) over tilde) - m((chi) over tilde1)(0) >100 GeV/c(2), and assuming BR((g) over tilde -> g<(chi over bar>(0)(1)) = 100%, m((g) over tilde) < 370 GeV/c(2) are excluded for lifetimes from 10 mu s to 1000 s.
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[Creanza, D.; De Filippis, N.; Iaselli, G.; Maggi, G.; My, S.; Pugliese, G.; Romano, F.] Politecn Bari, Bari, Italy.
[Abbiendi, G.; Benvenuti, A. C.; Bonacorsi, D.; Braibant-Giacomelli, S.; Capiluppi, P.; Castro, A.; Cavallo, F. R.; Cuffiani, M.; Dallavalle, G. M.; Fabbri, F.; Fanfani, A.; Fasanella, D.; Giacomelli, P.; Giunta, M.; Grandi, C.; Marcellini, S.; Meneghelli, M.; Montanari, A.; Navarria, F. L.; Odorici, F.; Perrotta, A.; Rossi, A. M.; Rovelli, T.; Siroli, G.; Travaglini, R.] Ist Nazl Fis Nucl, Sez Bologna, I-40126 Bologna, Italy.
[Braibant-Giacomelli, S.; Capiluppi, P.; Castro, A.; Cuffiani, M.; Fanfani, A.; Meneghelli, M.; Navarria, F. L.; Rossi, A. M.; Rovelli, T.; Siroli, G.; Travaglini, R.] Univ Bologna, Bologna, Italy.
[Albergo, S.; Cappello, G.; Chiorboli, M.; Costa, S.; Tricomi, A.; Tuve, C.] Ist Nazl Fis Nucl, Sez Catania, I-95129 Catania, Italy.
[Albergo, S.; Cappello, G.; Chiorboli, M.; Costa, S.; Tricomi, A.] Univ Catania, Catania, Italy.
[Barbagli, G.; Ciulli, V.; Civinini, C.; D'Alessandro, R.; Focardi, E.; Frosali, S.; Gallo, E.; Genta, C.; Lenzi, P.; Meschini, M.; Paoletti, S.; Sguazzoni, G.; Tropiano, A.] Ist Nazl Fis Nucl, Sez Firenze, I-50125 Florence, Italy.
[Ciulli, V.; D'Alessandro, R.; Focardi, E.; Frosali, S.; Lenzi, P.] Univ Florence, Florence, Italy.
[Benussi, L.; Bianco, S.; Colafranceschi, S.; Fabbri, F.; Piccolo, D.] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy.
[Musenich, R.] Ist Nazl Fis Nucl, Sez Genova, I-16146 Genoa, Italy.
[Benaglia, A.; Cerati, G. B.; De Guio, F.; Di Matteo, L.; Ghezzi, A.; Malberti, M.; Malvezzi, S.; Martelli, A.; Massironi, A.; Menasce, D.; Moroni, L.; Paganoni, M.; Pedrini, D.; Ragazzi, S.; Redaelli, N.; Sala, S.; de Fatis, T. Tabarelli; Tancini, V.] Ist Nazl Fis Nucl, Sez Milano Biccoca, I-20133 Milan, Italy.
[Benaglia, A.; Cerati, G. B.; De Guio, F.; Di Matteo, L.; Ghezzi, A.; Malberti, M.; Martelli, A.; Massironi, A.; Paganoni, M.; Ragazzi, S.; de Fatis, T. Tabarelli; Tancini, V.] Univ Milano Bicocca, Milan, Italy.
[Buontempo, S.; Montoya, C. A. Carrillo; Cimmino, A.; De Cosa, A.; De Gruttola, M.; Fabozzi, F.; Iorio, A. O. M.; Lista, L.; Merola, M.; Noli, P.; Paolucci, P.] Ist Nazl Fis Nucl, Sez Napoli, I-80125 Naples, Italy.
[Cimmino, A.; De Cosa, A.; De Gruttola, M.; Merola, M.; Noli, P.] Univ Naples Federico II, Naples, Italy.
[Azzi, P.; Bacchetta, N.; Bellan, P.; Bellato, M.; Bisello, D.; Branca, A.; Checchia, P.; Conti, E.; De Mattia, M.; Dorigo, T.; Gasparini, F.; Giubilato, P.; Gresele, A.; Lacaprara, S.; Lazzizzera, I.; Margoni, M.; Maron, G.; Meneguzzo, A. T.; Nespolo, M.; Passaseo, M.; Perrozzi, L.; Pozzobon, N.; Ronchese, P.; Simonetto, F.; Torassa, E.; Tosi, M.; Triossi, A.; Vanini, S.; Zotto, P.; Zumerle, G.] Ist Nazl Fis Nucl, Sez Padova, Padua, Italy.
[Bellan, P.; Bisello, D.; De Mattia, M.; Gasparini, F.; Giubilato, P.; Lazzizzera, I.; Margoni, M.; Meneguzzo, A. T.; Pozzobon, N.; Ronchese, P.; Simonetto, F.; Tosi, M.; Vanini, S.; Zotto, P.; Zumerle, G.] Univ Padua, Padua, Italy.
[Gresele, A.] Univ Trento Trento, Padua, Italy.
[Baesso, P.; Berzano, U.; Riccardi, C.; Torre, P.; Vitulo, P.; Viviani, C.] Ist Nazl Fis Nucl, Sez Pavia, I-27100 Pavia, Italy.
[Baesso, P.; Riccardi, C.; Torre, P.; Vitulo, P.; Viviani, C.] Univ Pavia, I-27100 Pavia, Italy.
[Biasini, M.; Bilei, G. M.; Caponeri, B.; Fano, L.; Lariccia, P.; Lucaroni, A.; Mantovani, G.; Menichelli, M.; Nappi, A.; Santocchia, A.; Servoli, L.; Taroni, S.; Valdata, M.; Volpe, R.; Pioppi, M.] Ist Nazl Fis Nucl, Sez Perugia, I-06100 Perugia, Italy.
[Biasini, M.; Caponeri, B.; Fano, L.; Lariccia, P.; Lucaroni, A.; Mantovani, G.; Nappi, A.; Santocchia, A.; Taroni, S.; Valdata, M.; Volpe, R.; Pioppi, M.] Univ Perugia, I-06100 Perugia, Italy.
[Azzurri, P.; Bagliesi, G.; Bernardini, J.; Boccali, T.; Broccolo, G.; Castaldi, R.; D'Agnolo, R. T.; Dell'Orso, R.; Fiori, F.; Foa, L.; Giassi, A.; Kraan, A.; Ligabue, F.; Lomtadze, T.; Martini, L.; Messineo, A.; Palla, F.; Palmonari, F.; Sarkar, S.; Segneri, G.; Serban, A. T.; Spagnolo, P.; Tenchini, R.; Tonelli, G.; Venturi, A.; Verdini, P. G.] Ist Nazl Fis Nucl, Sez Pisa, Pisa, Italy.
[Bernardini, J.; Fiori, F.; Messineo, A.; Tonelli, G.] Univ Pisa, Pisa, Italy.
[Azzurri, P.; Broccolo, G.; D'Agnolo, R. T.; Foa, L.; Ligabue, F.; Sarkar, S.] Scuola Normale Super Pisa, Pisa, Italy.
[Zabi, A.; Barone, L.; Cavallari, F.; Del Re, D.; Di Marco, E.; Diemoz, M.; Franci, D.; Grassi, M.; Longo, E.; Organtini, G.; Palma, A.; Pandolfi, F.; Paramatti, R.; Rahatlou, S.; Rovelli, C.] Ist Nazl Fis Nucl, Sez Roma, Rome, Italy.
[Colafranceschi, S.] Univ Roma La Sapienza, Fac Ingn, Rome, Italy.
[Amapane, N.; Arcidiacono, R.; Argiro, S.; Arneodo, M.; Biino, C.; Botta, C.; Cartiglia, N.; Castello, R.; Costa, M.; Demaria, N.; Graziano, A.; Mariotti, C.; Marone, M.; Maselli, S.; Migliore, E.; Mila, G.; Monaco, V.; Musich, M.; Obertino, M. M.; Pastrone, N.; Pelliccioni, M.; Romero, A.; Ruspa, M.; Sacchi, R.; Sola, V.; Solano, A.; Staiano, A.; Trocino, D.; Pereira, A. Vilela] Ist Nazl Fis Nucl, Sez Torino, I-10125 Turin, Italy.
[Amapane, N.; Argiro, S.; Botta, C.; Castello, R.; Costa, M.; Graziano, A.; Marone, M.; Migliore, E.; Mila, G.; Monaco, V.; Musich, M.; Pelliccioni, M.; Romero, A.; Sacchi, R.; Sola, V.; Solano, A.; Trocino, D.; Pereira, A. Vilela] Univ Turin, Turin, Italy.
[Arcidiacono, R.; Arneodo, M.; Obertino, M. M.; Ruspa, M.] Univ Piemonte Orientale Novara, Turin, Italy.
[Ambroglini, F.; Belforte, S.; Cossutti, F.; Della Ricca, G.; Gobbo, B.; Montanino, D.; Penzo, A.] Ist Nazl Fis Nucl, Sez Trieste, Trieste, Italy.
[Ambroglini, F.; Della Ricca, G.; Montanino, D.] Univ Trieste, Trieste, Italy.
[Heo, S. G.] Kangwon Natl Univ, Chunchon, South Korea.
[Chang, S.; Chung, J.; Kim, D. H.; Kim, G. N.; Kim, J. E.; Kong, D. J.; Park, H.; Son, D.; Son, D. C.] Kyungpook Natl Univ, Taegu, South Korea.
[Kim, Zero; Kim, J. Y.; Song, S.] Chonnam Natl Univ, Inst Universe & Elementary Particles, Kwangju, South Korea.
[Choi, S.; Hong, B.; Jo, M.; Kim, H.; Kim, J. H.; Kim, T. J.; Lee, K. S.; Moon, D. H.; Park, S. K.; Rhee, H. B.; Seo, E.; Shin, S.; Sim, K. S.] Korea Univ, Seoul, South Korea.
[Choi, M.; Kang, S.; Kim, H.; Park, C.; Park, I. C.; Park, S.; Ryu, G.] Univ Seoul, Seoul, South Korea.
[Choi, Y.; Choi, Y. K.; Goh, J.; Lee, J.; Lee, S.; Seo, H.; Yu, I.] Sungkyunkwan Univ, Suwon, South Korea.
[Bilinskas, M. J.; Grigelionis, I.; Janulis, M.; Martisiute, D.; Petrov, P.; Sabonis, T.] Vilnius Univ, Vilnius, Lithuania.
[Castilla Valdez, H.; De La Cruz Burelo, E.; Lopez-Fernandez, R.; Sanchez Hernandez, A.; Villasenor-Cendejas, L. M.] IPN, Ctr Invest & Estudios Avanzados, Mexico City 07738, DF, Mexico.
[Carrillo Moreno, S.; Vazquez Valencia, F.] Univ Iberoamer, Mexico City, DF, Mexico.
[Salazar Ibarguen, H. A.] Benemerita Univ Autonoma Puebla, Puebla, Mexico.
[Casimiro Linares, E.; Morelos Pineda, A.; Reyes-Santos, M. A.] Univ Autonoma San Luis Potosi, San Luis Potosi, Mexico.
[Allfrey, P.; Krofcheck, D.; Tam, J.] Univ Auckland, Auckland 1, New Zealand.
[Butler, P. H.; Doesburg, R.; Silverwood, H.] Univ Canterbury, Christchurch 1, New Zealand.
[Ahmad, M.; Ahmed, I.; Asghar, M. I.; Hoorani, H. R.; Khan, W. A.; Khurshid, T.; Qazi, S.] Quaid I Azam Univ, Natl Ctr Phys, Islamabad, Pakistan.
[Cwiok, M.; Dominik, W.; Doroba, K.; Kalinowski, A.; Konecki, M.; Krolikowski, J.] Univ Warsaw, Fac Phys, Inst Expt Phys, Warsaw, Poland.
[Bluj, M.; Frueboes, T.; Gokieli, R.; Gorski, M.; Kazana, M.; Nawrocki, K.; Romanowska-Rybinska, K.; Szleper, M.; Wrochna, G.; Zalewski, P.] Soltan Inst Nucl Studies, PL-00681 Warsaw, Poland.
[Almeida, N.; David, A.; Faccioli, P.; Ferreira Parracho, P. G.; Gallinaro, M.; Martins, P.; Musella, P.; Nayak, A.; Ribeiro, P. Q.; Seixas, J.; Silva, P.; Varela, J.; Woehri, H. K.] Lab Instrumentacao & Fis Expt Particulas, Lisbon, Portugal.
[Belotelov, I.; Bunin, P.; Finger, M.; Finger, M., Jr.; Golutvin, I.; Kamenev, A.; Karjavin, V.; Kozlov, G.; Lanev, A.; Moisenz, P.; Palichik, V.; Perelygin, V.; Shmatov, S.; Smirnov, V.; Volodko, A.; Zarubin, A.] Joint Inst Nucl Res, Dubna, Russia.
[Bondar, N.; Golovtsov, V.; Ivanov, Y.; Kim, V.; Levchenko, P.; Murzin, V.; Oreshkin, V.; Smirnov, I.; Sulimov, V.; Uvarov, L.; Vavilov, S.; Vorobyev, A.] Petersburg Nucl Phys Inst, St Petersburg, Russia.
[Andreev, Yu.; Gninenko, S.; Golubev, N.; Kirsanov, M.; Krasnikov, N.; Matveev, V.; Pashenkov, A.; Toropin, A.; Troitsky, S.] Russian Acad Sci, Inst Nucl Res, Moscow, Russia.
[Epshteyn, V.; Gavrilov, V.; Kaftanov, V.; Kossov, M.; Krokhotin, A.; Lychkovskaya, N.; Safronov, G.; Semenov, S.; Stolin, V.; Vlasov, E.; Zhokin, A.; Starodumov, A.; Nikitenko, A.] Inst Theoret & Expt Phys, Moscow 117259, Russia.
[Zhukov, V.; Boos, E.; Dubinin, M.; Dudko, L.; Ershov, A.; Gribushin, A.; Kodolova, O.; Lokhtin, I.; Obraztsov, S.; Petrushanko, S.; Sarycheva, L.; Savrin, V.; Snigirev, A.] Moscow MV Lomonosov State Univ, Moscow, Russia.
[Andreev, V.; Azarkin, M.; Dremin, I.; Kirakosyan, M.; Rusakov, S. V.; Vinogradov, A.] PN Lebedev Phys Inst, Moscow 117924, Russia.
[Azhgirey, I.; Bitioukov, S.; Grishin, V.; Kachanov, V.; Konstantinov, D.; Korablev, A.; Krychkine, V.; Petrov, V.; Ryutin, R.; Slabospitsky, S.; Sobol, A.; Tourtchanovitch, L.; Troshin, S.; Tyurin, N.; Uzunian, A.; Volkov, A.] State Res Ctr Russian Federat, Inst High Energy Phys, Protvino, Russia.
[Adzic, P.; Djordjevic, M.; Krpic, D.; Milosevic, J.; Milenovic, P.] Univ Belgrade, Fac Phys, Belgrade 11001, Serbia.
[Adzic, P.; Djordjevic, M.; Krpic, D.; Milosevic, J.; Milenovic, P.] Vinca Inst Nucl Sci, Belgrade, Serbia.
[Aguilar-Benitez, M.; Alcaraz Maestre, J.; Arce, P.; Battilana, C.; Calvo, E.; Cepeda, M.; Cerrada, M.; Colino, N.; De La Cruz, B.; Diez Pardos, C.; Fernandez Bedoya, C.; Fernandez Ramos, J. P.; Ferrando, A.; Flix, J.; Fouz, M. C.; Garcia-Abia, P.; Gonzalez Lopez, O.; Goy Lopez, S.; Hernandez, J. M.; Josa, M. I.; Merino, G.; Puerta Pelayo, J.; Redondo, I.; Romero, L.; Santaolalla, J.; Willmott, C.] Ctr Invest Energet Medioambientales & Tecnol CIEM, Madrid, Spain.
[Albajar, C.; Codispoti, G.; de Troconiz, J. F.] Univ Autonoma Madrid, Madrid, Spain.
[Cuevas, J.; Fernandez Menendez, J.; Folgueras, S.; Gonzalez Caballero, I.; Lloret Iglesias, L.; Vizan Garcia, J. M.] Univ Oviedo, Oviedo, Spain.
[Brochero Cifuentes, J. A.; Cabrillo, I. J.; Calderon, A.; Chamizo Llatas, M.; Chuang, S. H.; Duarte Campderros, J.; Felcini, M.; Fernandez, M.; Gomez, G.; Gonzalez Sanchez, J.; Gonzalez Suarez, R.; Jorda, C.; Lobelle Pardo, P.; Lopez Virto, A.; Marco, J.; Marco, R.; Martinez Rivero, C.; Matorras, F.; Munoz Sanchez, F. J.; Piedra Gomez, J.; Rodrigo, T.; Ruiz Jimeno, A.; Scodellaro, L.; Sobron Sanudo, M.; Vila, I.; Vilar Cortabitarte, R.] Univ Cantabria, CSIC, Inst Fis Cantabria IFCA, E-39005 Santander, Spain.
[Hammer, J.; Darmenov, N.; Genchev, V.; Iaydjiev, P.; Kreuzer, P.; Panagiotou, A.; Hajdu, C.; Mohanty, A. K.; Lusito, L.; Chiorboli, M.; Tropiano, A.; De Guio, F.; Ghezzi, A.; Perrozzi, L.; Lucaroni, A.; Volpe, R.; Boccali, T.; Tonelli, G.; Venturi, A.; Pandolfi, F.; Botta, C.; Graziano, A.; Pelliccioni, M.; Pereira, A. Vilela; Varela, J.; Kossov, M.; Grishin, V.; Abbaneo, D.; Auffray, E.; Auzinger, G.; Baillon, P.; Ball, A. H.; Barney, D.; Bell, A. J.; Benedetti, D.; Bernet, C.; Bialas, W.; Bloch, P.; Bocci, A.; Bolognesi, S.; Breuker, H.; Brona, G.; Bunkowski, K.; Camporesi, T.; Cano, E.; Cerminara, G.; Christiansen, T.; Perez, J. A. Coarasa; Covarelli, R.; Cure, B.; D'Enterria, D.; Dahms, T.; De Roeck, A.; Ramos, F. Duarte; Elliott-Peisert, A.; Funk, W.; Gaddi, A.; Gennai, S.; Georgiou, G.; Gerwig, H.; Gigi, D.; Gill, K.; Giordano, D.; Glege, F.; Garrido, R. Gomez-Reino; Gouzevitch, M.; Govoni, P.; Gowdy, S.; Guiducci, L.; Hansen, M.; Harvey, J.; Hegeman, J.; Hegner, B.; Henderson, C.; Hoffmann, H. F.; Honma, A.; Innocente, V.; Janot, P.; Karavakis, E.; Lecoq, P.; Leonidopoulos, C.; Lourenco, C.; Macpherson, A.; Maki, T.; Malgeri, L.; Mannelli, M.; Masetti, L.; Meijers, F.; Mersi, S.; Meschi, E.; Moser, R.; Mozer, M. U.; Mulders, M.; Nesvold, E.; Nguyen, M.; Orimoto, T.; Orsini, L.; Perez, E.; Petrilli, A.; Pfeiffer, A.; Pierini, M.; Pimia, M.; Polese, G.; Racz, A.; Rolandi, G.; Rommerskirchen, T.; Rovelli, C.; Rovere, M.; Sakulin, H.; Schaefer, C.; Schwick, C.; Segoni, I.; Sharma, A.; Siegrist, P.; Simon, M.; Sphicas, P.; Spiga, D.; Spiropulu, M.; Stoeckli, F.; Stoye, M.; Tropea, P.; Tsirou, A.; Tsyganov, A.; Veres, G. I.; Vichoudis, P.; Voutilainen, M.; Zeuner, W. D.; Erhan, S.; Sharma, V.; Hall-Wilton, R.] CERN, European Org Nucl Res, CH-1211 Geneva, Switzerland.
[Bertl, W.; Deiters, K.; Erdmann, W.; Gabathuler, K.; Horisberger, R.; Ingram, Q.; Kaestli, H. C.; Koenig, S.; Kotlinski, D.; Langenegger, U.; Meier, F.; Renker, D.; Rohe, T.; Sibille, J.; Starodumov, A.; Caminada, L.; Marchica, C.] Paul Scherrer Inst, Villigen, Switzerland.
[Bortignon, P.; Caminada, L.; Chen, Z.; Cittolin, S.; Dissertori, G.; Dittmar, M.; Eugster, J.; Freudenreich, K.; Grab, C.; Herve, A.; Hintz, W.; Lecomte, P.; Lustermann, W.; Marchica, C.; del Arbol, P. Martinez Ruiz; Meridiani, P.; Milenovic, P.; Moortgat, F.; Nef, P.; Nessi-Tedaldi, F.; Pape, L.; Pauss, F.; Punz, T.; Rizzi, A.; Ronga, F. J.; Sala, L.; Sanchez, A. K.; Sawley, M. -C.; Stieger, B.; Tauscher, L.; Thea, A.; Theofilatos, K.; Treille, D.; Urscheler, C.; Wallny, R.; Weber, M.; Wehrli, L.; Weng, J.] Swiss Fed Inst Technol, Inst Particle Phys, Zurich, Switzerland.
[Aguilo, E.; Amsler, C.; Chiochia, V.; De Visscher, S.; Favaro, C.; Rikova, M. Ivova; Mejias, B. Millan; Regenfus, C.; Robmann, P.; Schmidt, A.; Snoek, H.; Wilke, L.] Univ Zurich, Zurich, Switzerland.
[Chang, Y. H.; Chen, K. H.; Chen, W. T.; Dutta, S.; Go, A.; Kuo, C. M.; Li, S. W.; Lin, W.; Liu, M. H.; Liu, Z. K.; Lu, Y. J.; Wu, J. H.; Yu, S. S.] Natl Cent Univ, Chungli 32054, Taiwan.
[Bartalini, P.; Chang, P.; Chang, Y. H.; Chang, Y. W.; Chao, Y.; Chen, K. F.; Hou, W. -S.; Hsiung, Y.; Kao, K. Y.; Lei, Y. J.; Lu, R. -S.; Shiu, J. G.; Tzeng, Y. M.; Wang, M.] Natl Taiwan Univ, Taipei 10764, Taiwan.
[Adiguzel, A.; Bakirci, M. N.; Cerci, S.; Dozen, C.; Dumanoglu, I.; Eskut, E.; Girgis, S.; Gokbulut, G.; Guler, Y.; Gurpinar, E.; Hos, I.; Kangal, E. E.; Karaman, T.; Topaksu, A. Kayis; Nart, A.; Onengut, G.; Ozdemir, K.; Ozturk, S.; Polatoz, A.; Sogut, K.; Tali, B.; Topakli, H.; Uzun, D.; Vergili, L. N.; Vergili, M.; Zorbilmez, C.] Cukurova Univ, Adana, Turkey.
[Zabi, A.; Adiguzel, A.; Akin, I. V.; Aliev, T.; Bilmis, S.; Deniz, M.; Gamsizkan, H.; Guler, A. M.; Ocalan, K.; Ozpineci, A.; Serin, M.; Sever, R.; Surat, U. E.; Yildirim, E.; Zeyrek, M.] Middle E Tech Univ, Dept Phys, TR-06531 Ankara, Turkey.
[Deliomeroglu, M.; Demir, D.; Guelmez, E.; Halu, A.; Isildak, B.; Kaya, M.; Kaya, O.; Oezbek, M.; Ozkorucuklu, S.; Sonmez, N.] Bogazici Univ, Istanbul, Turkey.
[Levchuk, L.] Natl Sci Ctr, Kharkov Phys & Technol Inst, Kharkov, Ukraine.
[Bell, P.; Bostock, F.; Brooke, J. J.; Cheng, T. L.; Clement, E.; Cussans, D.; Frazier, R.; Goldstein, J.; Grimes, M.; Hansen, M.; Hartley, D.; Heath, G. P.; Heath, H. F.; Huckvale, B.; Jackson, J.; Kreczko, L.; Metson, S.; Newbold, D. M.; Nirunpong, K.; Poll, A.; Senkin, S.; Smith, V. J.; Ward, S.] Univ Bristol, Bristol, Avon, England.
[Newbold, D. M.; Basso, L.; Bell, K. W.; Belyaev, A.; Brew, C.; Brown, R. M.; Camanzi, B.; Cockerill, D. J. A.; Coughlan, J. A.; Harder, K.; Harper, S.; Kennedy, B. W.; Olaiya, E.; Petyt, D.; Radburn-Smith, B. C.; Shepherd-Themistocleous, C. H.; Tomalin, I. R.; Womersley, W. J.; Worm, S. D.] Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England.
[Bainbridge, R.; Ball, G.; Ballin, J.; Beuselinck, R.; Buchmuller, O.; Colling, D.; Cripps, N.; Cutajar, M.; Davies, G.; Della Negra, M.; Fulcher, J.; Futyan, D.; Bryer, A. Guneratne; Hall, G.; Hatherell, Z.; Hays, J.; Iles, G.; Karapostoli, G.; Lyons, L.; Magnan, A. -M.; Marrouche, J.; Nandi, R.; Nash, J.; Nikitenko, A.; Papageorgiou, A.; Pesaresi, M.; Petridis, K.; Pioppi, M.; Raymond, D. M.; Rompotis, N.; Rose, A.; Ryan, M. J.; Seez, C.; Sharp, P.; Sparrow, A.; Tapper, A.; Tourneur, S.; Acosta, M. Vazquez; Virdee, T.; Wakefield, S.; Wardrope, D.; Whyntie, T.] Univ London Imperial Coll Sci Technol & Med, London, England.
[Barrett, M.; Chadwick, M.; Cole, J. E.; Hobson, P. R.; Khan, A.; Kyberd, P.; Leslie, D.; Martin, W.; Reid, I. D.; Teodorescu, L.] Brunel Univ, Uxbridge UB8 3PH, Middx, England.
[Hatakeyama, K.] Baylor Univ, Waco, TX 76798 USA.
[Bose, T.; Jarrin, E. Carrera; Clough, A.; Fantasia, C.; Heister, A.; St John, J.; Lawson, P.; Lazic, D.; Rohlf, J.; Sperka, D.; Sulak, L.] Boston Univ, Boston, MA 02215 USA.
[Avetisyan, A.; Bhattacharya, S.; Chou, J. P.; Cutts, D.; Esen, S.; Ferapontov, A.; Heintz, U.; Jabeen, S.; Kukartsev, G.; Landsberg, G.; Narain, M.; Nguyen, D.; Segala, M.; Speer, T.; Tsang, K. V.] Brown Univ, Providence, RI 02912 USA.
[Borgia, M. A.; Breedon, R.; Sanchez, M. Calderon De La Barca; Cebra, D.; Chauhan, S.; Chertok, M.; Conway, J.; Cox, P. T.; Dolen, J.; Erbacher, R.; Friis, E.; Ko, W.; Kopecky, A.; Lander, R.; Liu, H.; Maruyama, S.; Miceli, T.; Nikolic, M.; Pellett, D.; Robles, J.; Schwarz, T.; Searle, M.; Smith, J.; Squires, M.; Tripathi, M.; Sierra, R. Vasquez; Veelken, C.] Univ Calif Davis, Davis, CA 95616 USA.
[Felcini, M.; Wallny, R.; Andreev, V.; Arisaka, K.; Cline, D.; Cousins, R.; Deisher, A.; Duris, J.; Erhan, S.; Farrell, C.; Hauser, J.; Ignatenko, M.; Jarvis, C.; Plager, C.; Rakness, G.; Schlein, P.; Tucker, J.; Valuev, V.] Univ Calif Los Angeles, Los Angeles, CA 90095 USA.
[Babb, J.; Clare, R.; Ellison, J.; Gary, J. W.; Giordano, F.; Hanson, G.; Jeng, G. Y.; Kao, S. C.; Liu, F.; Liu, H.; Luthra, A.; Nguyen, H.; Pasztor, G.; Satpathy, A.; Shen, B. C.; Stringer, R.; Sturdy, J.; Sumowidagdo, S.; Wilken, R.; Wimpenny, S.] Univ Calif Riverside, Riverside, CA 92521 USA.
[Andrews, W.; Branson, J. G.; Dusinberre, E.; Evans, D.; Golf, F.; Holzner, A.; Kelley, R.; Lebourgeois, M.; Letts, J.; Mangano, B.; Muelmenstaedt, J.; Padhi, S.; Palmer, C.; Petrucciani, G.; Pi, H.; Pieri, M.; Ranieri, R.; Sani, M.; Sharma, V.; Simon, S.; Tu, Y.; Vartak, A.; Wuerthwein, F.; Yagil, A.] Univ Calif San Diego, La Jolla, CA 92093 USA.
[Barge, D.; Bellan, R.; Campagnari, C.; D'Alfonso, M.; Danielson, T.; Geffert, P.; Incandela, J.; Justus, C.; Kalavase, P.; Koay, S. A.; Kovalskyi, D.; Krutelyov, V.; Lowette, S.; Mccoll, N.; Pavlunin, V.; Rebassoo, F.; Ribnik, J.; Richman, J.; Rossin, R.; Stuart, D.; To, W.; Vlimant, J. R.] Univ Calif Santa Barbara, Santa Barbara, CA 93106 USA.
[Dubinin, M.; Spiropulu, M.; Bornheim, A.; Bunn, J.; Chen, Y.; Gataullin, M.; Kcira, D.; Litvine, V.; Ma, Y.; Mott, A.; Newman, H. B.; Rogan, C.; Timciuc, V.; Traczyk, P.; Veverka, J.; Wilkinson, R.; Yang, Y.; Zhu, R. Y.] CALTECH, Pasadena, CA 91125 USA.
[Akgun, B.; Carroll, R.; Ferguson, T.; Iiyama, Y.; Jang, D. W.; Jun, S. Y.; Liu, Y. F.; Paulini, M.; Russ, J.; Terentyev, N.; Vogel, H.; Vorobiev, I.] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA.
[Cumalat, J. P.; Dinardo, M. E.; Drell, B. R.; Edelmaier, C. J.; Ford, W. T.; Heyburn, B.; Lopez, E. Luiggi; Smith, J. G.; Stenson, K.; Ulmer, K. A.; Wagner, S. R.; Zang, S. L.] Univ Colorado, Boulder, CO 80309 USA.
[Agostino, L.; Alexander, J.; Chatterjee, A.; Das, S.; Eggert, N.; Fields, L. J.; Gibbons, L. K.; Heltsley, B.; Hopkins, W.; Khukhunaishvili, A.; Kreis, B.; Kuznetsov, V.; Kaufman, G. Nicolas; Patterson, J. R.; Puigh, D.; Riley, D.; Ryd, A.; Shi, X.; Sun, W.; Teo, W. D.; Thom, J.; Thompson, J.; Vaughan, J.; Weng, Y.; Winstrom, L.; Wittich, P.] Cornell Univ, Ithaca, NY 14853 USA.
[Biselli, A.; Cirino, G.; Winn, D.] Fairfield Univ, Fairfield, CT 06824 USA.
[Abdullin, S.; Albrow, M.; Anderson, J.; Apollinari, G.; Atac, M.; Bakken, J. A.; Banerjee, S.; Bauerdick, L. A. T.; Beretvas, A.; Berryhill, J.; Bhat, P. C.; Bloch, I.; Borcherding, F.; Burkett, K.; Butler, J. N.; Chetluru, V.; Cheung, H. W. K.; Chlebana, F.; Cihangir, S.; Demarteau, M.; Eartly, D. P.; Elvira, V. D.; Fisk, I.; Freeman, J.; Gao, Y.; Gottschalk, E.; Green, D.; Gunthoti, K.; Gutsche, O.; Hahn, A.; Hanlon, J.; Harris, R. M.; Hirschauer, J.; Hooberman, B.; James, E.; Jensen, H.; Johnson, M.; Joshi, U.; Khatiwada, R.; Kilminster, B.; Klima, B.; Kousouris, K.; Kunori, S.; Kwan, S.; Limon, P.; Lipton, R.; Lykken, J.; Maeshima, K.; Marraffino, J. M.; Mason, D.; McBride, P.; McCauley, T.; Miao, T.; Mishra, K.; Mrenna, S.; Musienko, Y.; Newman-Holmes, C.; O'Dell, V.; Popescu, S.; Pordes, R.; Prokofyev, O.; Saoulidou, N.; Sexton-Kennedy, E.; Sharma, S.; Soha, A.; Spalding, W. J.; Spiegel, L.; Tan, P.; Taylor, L.; Tkaczyk, S.; Uplegger, L.; Vaandering, E. W.; Vidal, R.; Whitmore, J.; Wu, W.; Yang, F.; Yumiceva, F.; Yun, J. C.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
[Piedra Gomez, J.; Acosta, D.; Avery, P.; Bourilkov, D.; Chen, M.; Di Giovanni, G. P.; Dobur, D.; Drozdetskiy, A.; Field, R. D.; Fisher, M.; Fu, Y.; Furic, I. K.; Gartner, J.; Goldberg, S.; Kim, B.; Klimenko, S.; Konigsberg, J.; Korytov, A.; Kropivnitskaya, A.; Kypreos, T.; Matchev, K.; Mitselmakher, G.; Muniz, L.; Pakhotin, Y.; Prescott, C.; Remington, R.; Schmitt, M.; Scurlock, B.; Sellers, P.; Skhirtladze, N.; Wang, D.; Yelton, J.; Zakaria, M.] Univ Florida, Gainesville, FL 32611 USA.
[Ceron, C.; Gaultney, V.; Kramer, L.; Lebolo, L. M.; Linn, S.; Markowitz, P.; Martinez, G.; Rodriguez, J. L.] Florida Int Univ, Miami, FL 33199 USA.
[Adams, T.; Askew, A.; Bandurin, D.; Bochenek, J.; Chen, J.; Diamond, B.; Gleyzer, S. V.; Haas, J.; Hagopian, S.; Hagopian, V.; Jenkins, M.; Johnson, K. F.; Prosper, H.; Sekmen, S.; Veeraraghavan, V.] Florida State Univ, Tallahassee, FL 32306 USA.
[Baarmand, M. M.; Dorney, B.; Guragain, S.; Hohlmann, M.; Kalakhety, H.; Ralich, R.; Vodopiyanov, I.] Florida Inst Technol, Melbourne, FL 32901 USA.
[Adams, M. R.; Anghel, I. M.; Apanasevich, L.; Bai, Y.; Bazterra, V. E.; Betts, R. R.; Callner, J.; Cavanaugh, R.; Dragoiu, C.; Garcia-Solis, E. J.; Gerber, C. E.; Hofman, D. J.; Khalatyan, S.; Lacroix, F.; O'Brien, C.; Silvestre, C.; Smoron, A.; Strom, D.; Varelas, N.] Univ Illinois Chicago UIC, Chicago, IL 60607 USA.
[Akgun, U.; Albayrak, E. A.; Bilki, B.; Cankocak, K.; Clarida, W.; Duru, F.; Lae, C. K.; McCliment, E.; Merlo, J. -P.; Mermerkaya, H.; Mestvirishvili, A.; Moeller, A.; Nachtman, J.; Newsom, C. R.; Norbeck, E.; Olson, J.; Onel, Y.; Ozok, F.; Sen, S.; Wetzel, J.; Yetkin, T.; Yi, K.] Univ Iowa, Iowa City, IA 52242 USA.
[Barnett, B. A.; Blumenfeld, B.; Bonato, A.; Eskew, C.; Fehling, D.; Giurgiu, G.; Gritsan, A. V.; Guo, Z. J.; Hu, G.; Maksimovic, P.; Rappoccio, S.; Swartz, M.; Tran, N. V.; Whitbeck, A.] Johns Hopkins Univ, Baltimore, MD 21218 USA.
[Sibille, J.; Baringer, P.; Bean, A.; Benelli, G.; Grachov, O.; Murray, M.; Noonan, D.; Radicci, V.; Sanders, S.; Wood, J. S.; Zhukova, V.] Univ Kansas, Lawrence, KS 66045 USA.
[Bolton, T.; Chakaberia, I.; Ivanov, A.; Makouski, M.; Maravin, Y.; Shrestha, S.; Svintradze, I.; Wan, Z.] Kansas State Univ, Manhattan, KS 66506 USA.
[Gronberg, J.; Lange, D.; Wright, D.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
[Baden, A.; Boutemeur, M.; Eno, S. C.; Ferencek, D.; Gomez, J. A.; Hadley, N. J.; Kellogg, R. G.; Kirn, M.; Lu, Y.; Mignerey, A. C.; Rossato, K.; Rumerio, P.; Santanastasio, F.; Skuja, A.; Temple, J.; Tonjes, M. B.; Tonwar, S. C.; Twedt, E.] Univ Maryland, College Pk, MD 20742 USA.
[Wyslouch, B.; Alver, B.; Bauer, G.; Bendavid, J.; Busza, W.; Butz, E.; Cali, I. A.; Chan, M.; Dutta, V.; Everaerts, P.; Ceballos, G. Gomez; Goncharov, M.; Hahn, K. A.; Harris, P.; Kim, Y.; Klute, M.; Lee, Y. -J.; Li, W.; Loizides, C.; Luckey, P. D.; Ma, T.; Nahn, S.; Paus, C.; Roland, C.; Roland, G.; Rudolph, M.; Stephans, G. S. F.; Sumorok, K.; Sung, K.; Wenger, E. A.; Xie, S.; Yang, M.; Yilmaz, Y.; Yoon, A. S.; Zanetti, M.] MIT, Cambridge, MA 02139 USA.
[Cole, P.; Cooper, S. I.; Cushman, P.; Dahmes, B.; De Benedetti, A.; Dudero, P. R.; Franzoni, G.; Haupt, J.; Klapoetke, K.; Kubota, Y.; Mans, J.; Rekovic, V.; Rusack, R.; Sasseville, M.; Singovsky, A.] Univ Minnesota, Minneapolis, MN 55455 USA.
[Cremaldi, L. M.; Godang, R.; Kroeger, R.; Perera, L.; Rahmat, R.; Sanders, D. A.; Summers, D.] Univ Mississippi, University, MS 38677 USA.
[Bloom, K.; Bose, S.; Butt, J.; Claes, D. R.; Dominguez, A.; Eads, M.; Keller, J.; Kelly, T.; Kravchenko, I.; Lazo-Flores, J.; Lundstedt, C.; Malbouisson, H.; Malik, S.; Snow, G. R.] Univ Nebraska, Lincoln, NE 68588 USA.
[Baur, U.; Godshalk, A.; Iashvili, I.; Kharchilava, A.; Kumar, A.; Shipkowski, S. P.; Smith, K.] SUNY Buffalo, Buffalo, NY 14260 USA.
[Alverson, G.; Barberis, E.; Baumgartel, D.; Boeriu, O.; Chasco, M.; Kaadze, K.; Reucroft, S.; Swain, J.; Wood, D.; Zhang, J.] Northeastern Univ, Boston, MA 02115 USA.
[Anastassov, A.; Kubik, A.; Odell, N.; Ofierzynski, R. A.; Pollack, B.; Pozdnyakov, A.; Schmitt, M.; Stoynev, S.; Velasco, M.; Won, S.] Northwestern Univ, Evanston, IL 60208 USA.
[Antonelli, L.; Berry, D.; Hildreth, M.; Jessop, C.; Karmgard, D. J.; Kolb, J.; Kolberg, T.; Lannon, K.; Luo, W.; Lynch, S.; Marinelli, N.; Morse, D. M.; Pearson, T.; Ruchti, R.; Slaunwhite, J.; Valls, N.; Warchol, J.; Wayne, M.; Ziegler, J.] Univ Notre Dame, Notre Dame, IN 46556 USA.
[Bylsma, B.; Durkin, L. S.; Gu, J.; Hill, C.; Killewald, P.; Kotov, K.; Ling, T. Y.; Rodenburg, M.; Williams, G.] Ohio State Univ, Columbus, OH 43210 USA.
[Adam, N.; Berry, E.; Elmer, P.; Gerbaudo, D.; Halyo, V.; Hebda, P.; Hunt, A.; Jones, J.; Laird, E.; Pegna, D. Lopes; Marlow, D.; Medvedeva, T.; Mooney, M.; Olsen, J.; Piroue, P.; Quan, X.; Saka, H.; Stickland, D.; Tully, C.; Werner, J. S.; Zuranski, A.] Princeton Univ, Princeton, NJ 08544 USA.
[Acosta, J. G.; Huang, X. T.; Lopez, A.; Mendez, H.; Oliveros, S.; Vargas, J. E. Ramirez; Zatserklyaniy, A.] Univ Puerto Rico, Mayaguez, PR 00680 USA.
[Alagoz, E.; Barnes, V. E.; Bolla, G.; Borrello, L.; Bortoletto, D.; Everett, A.; Garfinkel, A. F.; Gecse, Z.; Gutay, L.; Hu, Z.; Jones, M.; Koybasi, O.; Laasanen, A. T.; Leonardo, N.; Liu, C.; Maroussov, V.; Merkel, P.; Miller, D. H.; Neumeister, N.; Potamianos, K.; Shipsey, I.; Silvers, D.; Svyatkovskiy, A.; Yoo, H. D.; Zablocki, J.; Zheng, Y.] Purdue Univ, W Lafayette, IN 47907 USA.
[Jindal, P.; Parashar, N.] Purdue Univ Calumet, Hammond, IN 46323 USA.
[Boulahouache, C.; Cuplov, V.; Ecklund, K. M.; Geurts, F. J. M.; Liu, J. H.; Morales, J.; Padley, B. P.; Redjimi, R.; Roberts, J.; Zabel, J.] Rice Univ, Houston, TX 77251 USA.
[Betchart, B.; Bodek, A.; Chung, Y. S.; De Barbaro, P.; Demina, R.; Eshaq, Y.; Flacher, H.; Garcia-Bellido, A.; Goldenzweig, P.; Gotra, Y.; Han, J.; Harel, A.; Miner, D. C.; Orbaker, D.; Petrillo, G.; Vishnevskiy, D.; Zielinski, M.] Univ Rochester, Rochester, NY 14627 USA.
[Bhatti, A.; Demortier, L.; Goulianos, K.; Lungu, G.; Mesropian, C.; Yan, M.] Rockefeller Univ, New York, NY 10021 USA.
[Atramentov, O.; Barker, A.; Duggan, D.; Gershtein, Y.; Gray, R.; Halkiadakis, E.; Hidas, D.; Hits, D.; Lath, A.; Panwalkar, S.; Patel, R.; Richards, A.; Rose, K.; Schnetzer, S.; Somalwar, S.; Stone, R.; Thomas, S.] Rutgers State Univ, Piscataway, NY 10021 USA.
[Cerizza, G.; Hollingsworth, M.; Spanier, S.; Yang, Z. C.; York, A.] Univ Tennessee, Knoxville, TN 37996 USA.
[Asaadi, J.; Eusebi, R.; Gilmore, J.; Gurrola, A.; Kamon, T.; Khotilovich, V.; Montalvo, R.; Nguyen, C. N.; Pivarski, J.; Safonov, A.; Sengupta, S.; Tatarinov, A.; Toback, D.; Weinberger, M.] Texas A&M Univ, College Stn, TX 77843 USA.
[Akchurin, N.; Bardak, C.; Damgov, J.; Jeong, C.; Kovitanggoon, K.; Lee, S. W.; Mane, P.; Roh, Y.; Sill, A.; Volobouev, I.; Wigmans, R.; Yazgan, E.] Texas Tech Univ, Lubbock, TX 79409 USA.
[Appelt, E.; Brownson, E.; Engh, D.; Florez, C.; Gabella, W.; Johns, W.; Kurt, P.; Maguire, C.; Melo, A.; Sheldon, P.; Velkovska, J.] Vanderbilt Univ, Nashville, TN 37235 USA.
[Arenton, M. W.; Balazs, M.; Boutle, S.; Buehler, M.; Conetti, S.; Cox, B.; Francis, B.; Hirosky, R.; Ledovskoy, A.; Lin, C.; Neu, C.; Yohay, R.] Univ Virginia, Charlottesville, VA 22901 USA.
[Gollapinni, S.; Harr, R.; Karchin, P. E.; Mattson, M.; Milstene, C.; Sakharov, A.] Wayne State Univ, Detroit, MI 48202 USA.
[Anderson, M.; Bachtis, M.; Bellinger, J. N.; Carlsmith, D.; Dasu, S.; Efron, J.; Gray, L.; Grogg, K. S.; Grothe, M.; Hall-Wilton, R.; Herndon, M.; Klabbers, P.; Klukas, J.; Lanaro, A.; Lazaridis, C.; Leonard, J.; Lomidze, D.; Loveless, R.; Mohapatra, A.; Parker, W.; Reeder, D.; Ross, I.; Savin, A.; Smith, W. H.; Swanson, J.; Weinberg, M.] Univ Wisconsin, Madison, WI 53706 USA.
[Gregores, E. M.] Univ Fed ABC, Santo Andre, Brazil.
[Assran, Y.] Suez Canal Univ, Suez, Egypt.
[Mahmoud, M. A.] Fayoum Univ, Al Fayyum, Egypt.
[Bergholz, M.; Lohmann, W.; Schmidt, R.] Brandenburg Tech Univ Cottbus, Cottbus, Germany.
[Krajczar, K.; Vesztergombi, G.; Veres, G. I.] Eotvos Lorand Univ, Budapest, Hungary.
[Guchait, M.] Visva Bharati Univ, Santini Ketan, W Bengal, India.
[Fabozzi, F.] Univ Basilicata, I-85100 Potenza, Italy.
[Rolandi, G.] Scuola Normale, Pisa, Italy.
[Rolandi, G.] Sezione Ist Nazl Fis Nucl, Pisa, Italy.
[Cerci, S.] Adiyaman Univ, Adiyaman, Turkey.
[Sogut, K.] Mersin Univ, Mersin, Turkey.
[Demir, D.] Izmir Inst Technol, Izmir, Turkey.
[Kaya, M.; Kaya, O.] Kafkas Univ, Kars, Turkey.
[Ozkorucuklu, S.] Suleyman Demirel Univ, TR-32200 Isparta, Turkey.
[Sonmez, N.] Ege Univ, Izmir, Turkey.
[Popescu, S.] Horia Hulubei Natl Inst Phys & Nucl Engn IFIN HH, Bucharest, Romania.
[Cankocak, K.] Istanbul Tech Univ, TR-80626 Istanbul, Turkey.
[Agram, J-L.; Conte, E.; Karim, M.] Univ Haute Alsace, Mulhouse, France.
[Lacaprara, S.; Maron, G.] Ist Nazl Fis Nucl, Lab Nazl Legnaro, I-35020 Legnaro, Italy.
[Bell, A. J.] Univ Geneva, Geneva, Switzerland.
RP Khachatryan, V (reprint author), Yerevan Phys Inst, Yerevan 375036, Armenia.
RI Katkov, Igor/E-2627-2012; Boos, Eduard/D-9748-2012; Snigirev,
Alexander/D-8912-2012; Servoli, Leonello/E-6766-2012; Tomei,
Thiago/E-7091-2012; Novaes, Sergio/D-3532-2012; Padula, Sandra
/G-3560-2012; Fruhwirth, Rudolf/H-2529-2012; Azzi, Patrizia/H-5404-2012;
Torassa, Ezio/I-1788-2012; Giacomelli, Paolo/B-8076-2009; Jeitler,
Manfred/H-3106-2012; Venturi, Andrea/J-1877-2012; Palinkas,
Jozsef/B-2993-2011; Lokhtin, Igor/D-7004-2012; Kodolova,
Olga/D-7158-2012; Mignerey, Alice/D-6623-2011; Ruiz,
Alberto/E-4473-2011; Stahl, Achim/E-8846-2011; Hektor, Andi/G-1804-2011;
Wulz, Claudia-Elisabeth/H-5657-2011; Chen, Jie/H-6210-2011; Bolton,
Tim/A-7951-2012; Yang, Fan/B-2755-2012; Krammer, Manfred/A-6508-2010;
Tinoco Mendes, Andre David/D-4314-2011; Dudko, Lev/D-7127-2012; Varela,
Joao/K-4829-2016; Sguazzoni, Giacomo/J-4620-2015; Ligabue,
Franco/F-3432-2014; Fassi, Farida/F-3571-2016; Menasce, Dario
Livio/A-2168-2016; Vilela Pereira, Antonio/L-4142-2016; Sznajder,
Andre/L-1621-2016; Haj Ahmad, Wael/E-6738-2016; Xie, Si/O-6830-2016;
Leonardo, Nuno/M-6940-2016; Goh, Junghwan/Q-3720-2016; Govoni,
Pietro/K-9619-2016; Tuominen, Eija/A-5288-2017; Yazgan, Efe/C-4521-2014;
Paulini, Manfred/N-7794-2014; Gerbaudo, Davide/J-4536-2012; Rovelli,
Tiziano/K-4432-2015; Dremin, Igor/K-8053-2015; Hoorani,
Hafeez/D-1791-2013; Andreev, Vladimir/M-8665-2015; Cakir,
Altan/P-1024-2015; TUVE', Cristina/P-3933-2015; Gulmez,
Erhan/P-9518-2015; KIM, Tae Jeong/P-7848-2015; Flix, Josep/G-5414-2012;
Ozdemir, Kadri/P-8058-2014; Azarkin, Maxim/N-2578-2015; Paganoni,
Marco/A-4235-2016; Kirakosyan, Martin/N-2701-2015; Seixas,
Joao/F-5441-2013; Ahmed, Ijaz/E-9144-2015; Lazzizzera,
Ignazio/E-9678-2015; Sen, Sercan/C-6473-2014; D'Alessandro,
Raffaello/F-5897-2015; Belyaev, Alexander/F-6637-2015; Trocsanyi,
Zoltan/A-5598-2009; Konecki, Marcin/G-4164-2015; Hernandez Calama, Jose
Maria/H-9127-2015; Bedoya, Cristina/K-8066-2014; Matorras,
Francisco/I-4983-2015; My, Salvatore/I-5160-2015; Muelmenstaedt,
Johannes/K-2432-2015; de la Cruz, Begona/K-7552-2014; Scodellaro,
Luca/K-9091-2014; Josa, Isabel/K-5184-2014; Gonzalez Suarez,
Rebeca/L-6128-2014; Calvo Alamillo, Enrique/L-1203-2014; Vogel,
Helmut/N-8882-2014; Marinho, Franciole/N-8101-2014; Ragazzi,
Stefano/D-2463-2009; Benussi, Luigi/O-9684-2014; Russ,
James/P-3092-2014; Ferreira Dias, Marco Andre/P-6667-2014; Dahms,
Torsten/A-8453-2015; Grandi, Claudio/B-5654-2015; Zalewski,
Piotr/H-7335-2013; Ivanov, Andrew/A-7982-2013; Wimpenny,
Stephen/K-8848-2013; Troitsky, Sergey/C-1377-2014; Marlow,
Daniel/C-9132-2014; Oguri, Vitor/B-5403-2013; Janssen,
Xavier/E-1915-2013; Alves, Gilvan/C-4007-2013; Codispoti,
Giuseppe/F-6574-2014; Gribushin, Andrei/J-4225-2012; Cerrada,
Marcos/J-6934-2014; Calderon, Alicia/K-3658-2014; de Jesus Damiao,
Dilson/G-6218-2012; Montanari, Alessandro/J-2420-2012; Amapane,
Nicola/J-3683-2012; tosi, mia/J-5777-2012; Petrushanko,
Sergey/D-6880-2012; Raidal, Martti/F-4436-2012; Della Ricca,
Giuseppe/B-6826-2013; Kadastik, Mario/B-7559-2008; Mundim,
Luiz/A-1291-2012; Santaolalla, Javier/C-3094-2013; Rolandi, Luigi
(Gigi)/E-8563-2013; Hill, Christopher/B-5371-2012
OI Katkov, Igor/0000-0003-3064-0466; Servoli, Leonello/0000-0003-1725-9185;
Tomei, Thiago/0000-0002-1809-5226; Novaes, Sergio/0000-0003-0471-8549;
Azzi, Patrizia/0000-0002-3129-828X; Ruiz, Alberto/0000-0002-3639-0368;
Stahl, Achim/0000-0002-8369-7506; Hektor, Andi/0000-0001-7873-8118;
Wulz, Claudia-Elisabeth/0000-0001-9226-5812; Krammer,
Manfred/0000-0003-2257-7751; Tinoco Mendes, Andre
David/0000-0001-5854-7699; Dudko, Lev/0000-0002-4462-3192; Ciulli,
Vitaliano/0000-0003-1947-3396; Martelli, Arabella/0000-0003-3530-2255;
Levchenko, Petr/0000-0003-4913-0538; Varela, Joao/0000-0003-2613-3146;
Lloret Iglesias, Lara/0000-0002-0157-4765; Carrera,
Edgar/0000-0002-0857-8507; Sguazzoni, Giacomo/0000-0002-0791-3350;
Ligabue, Franco/0000-0002-1549-7107; Diemoz,
Marcella/0000-0002-3810-8530; Tricomi, Alessia Rita/0000-0002-5071-5501;
Fassi, Farida/0000-0002-6423-7213; Ghezzi, Alessio/0000-0002-8184-7953;
bianco, stefano/0000-0002-8300-4124; Demaria,
Natale/0000-0003-0743-9465; Benaglia, Andrea Davide/0000-0003-1124-8450;
Covarelli, Roberto/0000-0003-1216-5235; Bean, Alice/0000-0001-5967-8674;
Longo, Egidio/0000-0001-6238-6787; Di Matteo,
Leonardo/0000-0001-6698-1735; Baarmand, Marc/0000-0002-9792-8619;
Boccali, Tommaso/0000-0002-9930-9299; Menasce, Dario
Livio/0000-0002-9918-1686; Attia Mahmoud, Mohammed/0000-0001-8692-5458;
Bilki, Burak/0000-0001-9515-3306; Vilela Pereira,
Antonio/0000-0003-3177-4626; Sznajder, Andre/0000-0001-6998-1108; Haj
Ahmad, Wael/0000-0003-1491-0446; Xie, Si/0000-0003-2509-5731; Leonardo,
Nuno/0000-0002-9746-4594; Goh, Junghwan/0000-0002-1129-2083; Govoni,
Pietro/0000-0002-0227-1301; Tuominen, Eija/0000-0002-7073-7767; Yazgan,
Efe/0000-0001-5732-7950; Paulini, Manfred/0000-0002-6714-5787; Gerbaudo,
Davide/0000-0002-4463-0878; Vieira de Castro Ferreira da Silva, Pedro
Manuel/0000-0002-5725-041X; Rovelli, Tiziano/0000-0002-9746-4842; TUVE',
Cristina/0000-0003-0739-3153; Gulmez, Erhan/0000-0002-6353-518X; KIM,
Tae Jeong/0000-0001-8336-2434; Flix, Josep/0000-0003-2688-8047; Ozdemir,
Kadri/0000-0002-0103-1488; Paganoni, Marco/0000-0003-2461-275X; Seixas,
Joao/0000-0002-7531-0842; Lazzizzera, Ignazio/0000-0001-5092-7531; Sen,
Sercan/0000-0001-7325-1087; D'Alessandro, Raffaello/0000-0001-7997-0306;
Belyaev, Alexander/0000-0002-1733-4408; Trocsanyi,
Zoltan/0000-0002-2129-1279; Konecki, Marcin/0000-0001-9482-4841;
Hernandez Calama, Jose Maria/0000-0001-6436-7547; Bedoya,
Cristina/0000-0001-8057-9152; Matorras, Francisco/0000-0003-4295-5668;
My, Salvatore/0000-0002-9938-2680; Muelmenstaedt,
Johannes/0000-0003-1105-6678; Scodellaro, Luca/0000-0002-4974-8330;
Gonzalez Suarez, Rebeca/0000-0002-6126-7230; Calvo Alamillo,
Enrique/0000-0002-1100-2963; Vogel, Helmut/0000-0002-6109-3023; Marinho,
Franciole/0000-0002-7327-0349; Ragazzi, Stefano/0000-0001-8219-2074;
Benussi, Luigi/0000-0002-2363-8889; Russ, James/0000-0001-9856-9155;
Dahms, Torsten/0000-0003-4274-5476; Grandi, Claudio/0000-0001-5998-3070;
Ivanov, Andrew/0000-0002-9270-5643; Wimpenny,
Stephen/0000-0003-0505-4908; Troitsky, Sergey/0000-0001-6917-6600;
Codispoti, Giuseppe/0000-0003-0217-7021; Cerrada,
Marcos/0000-0003-0112-1691; de Jesus Damiao, Dilson/0000-0002-3769-1680;
Montanari, Alessandro/0000-0003-2748-6373; Amapane,
Nicola/0000-0001-9449-2509; Della Ricca, Giuseppe/0000-0003-2831-6982;
Mundim, Luiz/0000-0001-9964-7805; Rolandi, Luigi
(Gigi)/0000-0002-0635-274X; Hill, Christopher/0000-0003-0059-0779
FU FMSR (Austria); FNRS; FWO (Belgium); CNPq; CAPES; FAPERJ; FAPESP
(Brazil); MES (Bulgaria); CERN; CAS; MoST; NSFC (China); COLCIENCIAS
(Colombia); MSES (Croatia); RPF (Cyprus); Academy of Sciences and NICPB
(Estonia); Academy of Finland; ME; HIP (Finland); CEA; CNRS/IN2P3
(France); BMBF; DFG; HGF (Germany); GSRT (Greece); OTKA; NKTH (Hungary);
DAE; DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); NRF; WCU
(Korea); LAS (Lithuania); CINVESTAV; CONACYT; SEP; UASLP-FAI (Mexico);
PAEC (Pakistan); SCSR (Poland); FCT (Portugal); JINR (Armenia, Belarus,
Georgia, Ukraine, Uzbekistan); MST; MAE (Russia); MSTD (Serbia); MICINN;
CPAN (Spain); Swiss Funding Agencies (Switzerland); NSC (Taipei);
TUBITAK; TAEK (Turkey); STFC (United Kingdom); DOE; NSF (USA)
FX We wish to congratulate our colleagues in the CERN accelerator
departments for the excellent performance of the LHC machine. We thank
the technical and administrative staff at CERN and other CMS institutes,
and acknowledge support from: FMSR (Austria); FNRS and FWO (Belgium);
CNPq, CAPES, FAPERJ, and FAPESP (Brazil); MES (Bulgaria); CERN; CAS,
MoST, and NSFC (China); COLCIENCIAS (Colombia); MSES (Croatia); RPF
(Cyprus); Academy of Sciences and NICPB (Estonia); Academy of Finland,
ME, and HIP (Finland); CEA and CNRS/IN2P3 (France); BMBF, DFG, and HGF
(Germany); GSRT (Greece); OTKA and NKTH (Hungary); DAE and DST (India);
IPM (Iran); SFI (Ireland); INFN (Italy); NRF and WCU (Korea); LAS
(Lithuania); CINVESTAV, CONACYT, SEP, and UASLP-FAI (Mexico); PAEC
(Pakistan); SCSR (Poland); FCT (Portugal); JINR (Armenia, Belarus,
Georgia, Ukraine, Uzbekistan); MST and MAE (Russia); MSTD (Serbia);
MICINN and CPAN (Spain); Swiss Funding Agencies (Switzerland); NSC
(Taipei); TUBITAK and TAEK (Turkey); STFC (United Kingdom); DOE and NSF
(USA).
NR 33
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U1 2
U2 43
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
EI 1079-7114
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD JAN 7
PY 2011
VL 106
IS 1
AR 011801
DI 10.1103/PhysRevLett.106.011801
PG 15
WC Physics, Multidisciplinary
SC Physics
GA 713PM
UT WOS:000286749900006
PM 21231732
ER
PT J
AU Li, HL
Liu, FM
Ma, GL
Wang, XN
Zhu, Y
AF Li, Hanlin
Liu, Fuming
Ma, Guo-liang
Wang, Xin-Nian
Zhu, Yan
TI Mach Cone Induced by gamma-Triggered Jets in High-Energy Heavy-Ion
Collisions
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID FLOW; MODEL
AB Medium excitation by jet shower propagation inside a quark-gluon plasma is studied within a linear Boltzmann transport and a multiphase transport model. Contrary to the naive expectation, it is the deflection of both the jet shower and the Mach-cone-like excitation in an expanding medium that is found to give rise to a double-peak azimuthal particle distribution with respect to the initial jet direction. Such a deflection is the strongest for hadron-triggered jets which are often produced close to the surface of a dense medium due to trigger bias and travel against or tangential to the radial flow. Without such trigger bias, the effect of deflection on gamma-jet showers and their medium excitation is weaker. Comparative study of hadron and gamma-triggered particle correlations can therefore reveal the dynamics of jet-induced medium excitation in high-energy heavy-ion collisions.
C1 [Li, Hanlin; Liu, Fuming; Wang, Xin-Nian; Zhu, Yan] Hua Zhong Normal Univ, Inst Particle Phys, Wuhan 430079, Peoples R China.
[Ma, Guo-liang] Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China.
[Wang, Xin-Nian] Univ Calif Berkeley, Lawrence Berkeley Lab, Nucl Sci Div MS 70R0319, Berkeley, CA 94720 USA.
RP Li, HL (reprint author), Hua Zhong Normal Univ, Inst Particle Phys, Wuhan 430079, Peoples R China.
RI Ma, Guo-Liang/B-4166-2012;
OI Wang, Xin-Nian/0000-0002-9734-9967
FU NSFC of China [10610285, 10635020, 10705044, 10825523, 10975059]; U.S.
DOE [DE-AC02-05CH11231]
FX We thank T. Hirano for providing the numerical results of hydrodynamic
calculations. This work is supported by the NSFC of China under Projects
No. 10610285, No. 10635020, 10705044, No. 10825523, No. 10975059 and by
the U.S. DOE under Contract No. DE-AC02-05CH11231 and within the
framework of the JET Collaboration.
NR 28
TC 29
Z9 29
U1 0
U2 1
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD JAN 7
PY 2011
VL 106
IS 1
AR 012301
DI 10.1103/PhysRevLett.106.012301
PG 4
WC Physics, Multidisciplinary
SC Physics
GA 713PM
UT WOS:000286749900007
PM 21231733
ER
PT J
AU Putkunz, CT
Clark, JN
Vine, DJ
Williams, GJ
Pfeifer, MA
Balaur, E
McNulty, I
Nugent, KA
Peele, AG
AF Putkunz, Corey T.
Clark, Jesse N.
Vine, David J.
Williams, Garth J.
Pfeifer, Mark A.
Balaur, Eugeniu
McNulty, Ian
Nugent, Keith A.
Peele, Andrew G.
TI Phase-Diverse Coherent Diffractive Imaging: High Sensitivity with Low
Dose
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID RETRIEVAL; MICROSCOPY; RESOLUTION; TRANSMISSION; TOMOGRAPHY; FIELD
AB This Letter demonstrates that coherent diffractive imaging (CDI), in combination with phase-diversity methods, provides reliable and artefact free high-resolution images. Here, using x rays, experimental results show a threefold improvement in the available image contrast. Furthermore, in conditions requiring low imaging dose, it is demonstrated that phase-diverse CDI provides a factor of 2 improvement in comparison to previous CDI techniques.
C1 [Putkunz, Corey T.; Clark, Jesse N.; Pfeifer, Mark A.; Balaur, Eugeniu; Peele, Andrew G.] La Trobe Univ, Dept Phys, Bundoora, Vic 3086, Australia.
[Vine, David J.; Williams, Garth J.; Nugent, Keith A.] Univ Melbourne, Sch Phys, Melbourne, Vic 3010, Australia.
[McNulty, Ian] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA.
RP Putkunz, CT (reprint author), La Trobe Univ, Dept Phys, Bundoora, Vic 3086, Australia.
EM a.peele@latrobe.edu.au
RI Williams, Garth/H-1606-2012; Nugent, Keith/J-2699-2012; Nugent,
Keith/I-4154-2016; Balaur, Eugeniu/J-5865-2016
OI Nugent, Keith/0000-0003-1522-8991; Nugent, Keith/0000-0002-4281-3478;
Balaur, Eugeniu/0000-0003-4029-2055
FU Australian Research Council Centre of Excellence for Coherent X-ray
Science; Australian Synchrotron Research Program; U.S. Department of
Energy, Office of Science, and Office of Basic Energy Sciences
[DE-AC02-06CH11357]
FX We acknowledge the support of the Australian Research Council Centre of
Excellence for Coherent X-ray Science and the Australian Synchrotron
Research Program. Use of the Advanced Photon Source is supported by the
U.S. Department of Energy, Office of Science, and Office of Basic Energy
Sciences, under Contract No. DE-AC02-06CH11357.
NR 30
TC 39
Z9 40
U1 0
U2 13
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD JAN 7
PY 2011
VL 106
IS 1
AR 013903
DI 10.1103/PhysRevLett.106.013903
PG 4
WC Physics, Multidisciplinary
SC Physics
GA 713PM
UT WOS:000286749900010
PM 21231742
ER
PT J
AU Antonangeli, D
Siebert, J
Aracne, CM
Farber, DL
Bosak, A
Hoesch, M
Krisch, M
Ryerson, FJ
Fiquet, G
Badro, J
AF Antonangeli, Daniele
Siebert, Julien
Aracne, Chantel M.
Farber, Daniel L.
Bosak, A.
Hoesch, M.
Krisch, M.
Ryerson, Frederick J.
Fiquet, Guillaume
Badro, James
TI Spin Crossover in Ferropericlase at High Pressure: A Seismologically
Transparent Transition?
SO SCIENCE
LA English
DT Article
ID EARTHS LOWER MANTLE; MGSIO3 PEROVSKITE; SOUND-VELOCITY; IRON;
ELASTICITY; (MG,FE)O; MAGNESIOWUSTITE; ANISOTROPY
AB Seismic discontinuities in Earth typically arise from structural, chemical, or temperature variations with increasing depth. The pressure-induced iron spin state transition in the lower mantle may influence seismic wave velocities by changing the elasticity of iron-bearing minerals, but no seismological evidence of an anomaly exists. Inelastic x-ray scattering measurements on (Mg0.83Fe0.17)O-ferropericlase at pressures across the spin transition show effects limited to the only shear moduli of the elastic tensor. This explains the absence of deviation in the aggregate seismic velocities and, thus, the lack of a one-dimensional seismic signature of the spin crossover. The spin state transition does, however, influence shear anisotropy of ferropericlase and should contribute to the seismic shear wave anisotropy of the lower mantle.
C1 [Antonangeli, Daniele; Siebert, Julien; Fiquet, Guillaume; Badro, James] Univ Paris Diderot, Univ Paris 06, Inst Phys Globe Paris, Inst Mineral & Phys Milieux Condenses,CNRS,UMR 75, F-75005 Paris, France.
[Antonangeli, Daniele; Siebert, Julien; Aracne, Chantel M.; Farber, Daniel L.; Ryerson, Frederick J.; Badro, James] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Farber, Daniel L.] Univ Calif Santa Cruz, Dept Earth & Planetary Sci, Santa Cruz, CA 95064 USA.
[Bosak, A.; Hoesch, M.; Krisch, M.] European Synchrotron Radiat Facil, F-38043 Grenoble, France.
RP Antonangeli, D (reprint author), Univ Paris Diderot, Univ Paris 06, Inst Phys Globe Paris, Inst Mineral & Phys Milieux Condenses,CNRS,UMR 75, F-75005 Paris, France.
EM daniele.antonangeli@impmc.upmc.fr
RI Farber, Daniel/F-9237-2011; Fiquet, Guillaume/H-1219-2011; BOSAK,
Alexei/J-7895-2013; Siebert, Julien/A-8336-2014; Fiquet,
Guillaume/M-6934-2014; Badro, James/A-6003-2011
OI Hoesch, Moritz/0000-0002-0114-2110; Siebert, Julien/0000-0001-9972-6239;
FU U.S. Department of Energy; Lawrence Livermore National Laboratory
[DE-AC52-07NA27344]; Office of Basic Energy Sciences; European Research
Council (ERC) under the European Community [207467]; French National
Research Agency [ANR-07-BLAN-0124-01]; ERC [207467]
FX We thank F. Occelli, G. Le Marchand, P. Munsch, P. Bouvier, M. Hanfland,
M. Mezouar, and A. L. Auzende for experimental help. This work was
performed under the auspices of the U.S. Department of Energy and
Lawrence Livermore National Laboratory under contract DE-AC52-07NA27344
and was supported by the Office of Basic Energy Sciences-Geosciences
Research Program (F.J.R.). D.A., J.B., and J.S. acknowledge financial
support from the European Research Council (ERC) under the European
Community's Seventh Framework Programme (FP7/2007-2013)/ERC grant
agreement no. 207467. This work was supported by the French National
Research Agency grant no. ANR-07-BLAN-0124-01 and ERC grant agreement
no. 207467.
NR 33
TC 55
Z9 57
U1 3
U2 65
PU AMER ASSOC ADVANCEMENT SCIENCE
PI WASHINGTON
PA 1200 NEW YORK AVE, NW, WASHINGTON, DC 20005 USA
SN 0036-8075
EI 1095-9203
J9 SCIENCE
JI Science
PD JAN 7
PY 2011
VL 331
IS 6013
BP 64
EP 67
DI 10.1126/science.1198429
PG 4
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 703JK
UT WOS:000285974000035
PM 21212352
ER
PT J
AU Fort, A
Fish, RJ
Attanasio, C
Dosch, R
Visel, A
Neerman-Arbez, M
AF Fort, Alexandre
Fish, Richard J.
Attanasio, Catia
Dosch, Roland
Visel, Axel
Neerman-Arbez, Marguerite
TI A liver enhancer in the fibrinogen gene cluster
SO BLOOD
LA English
DT Article
ID INDIVIDUAL PARTICIPANT METAANALYSIS; CONSERVED NONCODING SEQUENCES;
TRANSCRIPTION FACTOR-BINDING; HUMAN GENOME; REGULATORY ELEMENTS;
MULTISPECIES CONSERVATION; ATHEROTHROMBOTIC DISEASE; BIOLOGICAL
RELEVANCE; RISK-FACTORS; EXPRESSION
AB The plasma concentration of fibrinogen varies in the healthy human population between 1.5 and 3.5 g/L. Understanding the basis of this variability has clinical importance because elevated fibrinogen levels are associated with increased cardiovascular disease risk. To identify novel regulatory elements involved in the control of fibrinogen expression, we used sequence conservation and in silico-predicted regulatory potential to select 14 conserved noncoding sequences (CNCs) within the conserved block of synteny containing the fibrinogen locus. The regulatory potential of each CNC was tested in vitro using a luciferase reporter gene assay in fibrinogen-expressing hepatoma cell lines (HuH7 and HepG2). 4 potential enhancers were tested for their ability to direct enhanced green fluorescent protein expression in zebrafish embryos. CNC12, a sequence equidistant from the human fibrinogen alpha and beta chain genes, activates strong liver enhanced green fluorescent protein expression in injected embryos and their transgenic progeny. A transgenic assay in embryonic day 14.5 mouse embryos confirmed the ability of CNC12 to activate transcription in the liver. While additional experiments are necessary to prove the role of CNC12 in the regulation of fibrinogen, our study reveals a novel regulatory element in the fibrinogen locus that is active in the liver and may contribute to variable fibrinogen expression in humans. (Blood. 2011;117(1):276-282)
C1 [Fort, Alexandre; Fish, Richard J.; Neerman-Arbez, Marguerite] Univ Geneva, Dept Genet Med & Dev, Fac Med, CH-1211 Geneva, Switzerland.
[Attanasio, Catia; Visel, Axel] Univ Calif Berkeley, Lawrence Berkeley Lab, Genom Div, Berkeley, CA 94720 USA.
[Dosch, Roland] Univ Gottingen, Dept Dev Biochem, Gottingen, Germany.
[Visel, Axel] US DOE, Joint Genome Inst, Walnut Creek, CA USA.
[Neerman-Arbez, Marguerite] Univ Hosp Geneva, Div Angiol & Hemostasis, Geneva, Switzerland.
RP Neerman-Arbez, M (reprint author), Univ Geneva, Dept Genet Med & Dev, Fac Med, 1 Rue Michel Servet, CH-1211 Geneva, Switzerland.
EM marguerite.neerman-arbez@unige.ch
RI Visel, Axel/A-9398-2009; attanasio, catia/D-5042-2017
OI Visel, Axel/0000-0002-4130-7784;
FU Dr Henri Dubois-Ferriere-Dinu Lipatti foundation; Swiss National Science
Foundation [31-A0119845]; National Human Genome Research Institute
[HG003988]; Department of Energy, University of California, Energy
Office Lawrence Berkeley National Laboratory [DE-AC02-05CH11231];
European Molecular Biology Organization
FX This work was supported by grants from the Dr Henri Dubois-Ferriere-Dinu
Lipatti foundation and the Swiss National Science Foundation (grant
number 31-A0119845). A.V. and C.A. were supported by grant HG003988
funded by the National Human Genome Research Institute and Department of
Energy Contract DE-AC02-05CH11231, University of California, Energy
Office Lawrence Berkeley National Laboratory. C.A. is also supported by
an European Molecular Biology Organization long-term fellowship.
NR 50
TC 10
Z9 11
U1 0
U2 2
PU AMER SOC HEMATOLOGY
PI WASHINGTON
PA 1900 M STREET. NW SUITE 200, WASHINGTON, DC 20036 USA
SN 0006-4971
J9 BLOOD
JI Blood
PD JAN 6
PY 2011
VL 117
IS 1
BP 276
EP 282
DI 10.1182/blood-2010-07-295410
PG 7
WC Hematology
SC Hematology
GA 703FO
UT WOS:000285963900039
PM 20921339
ER
PT J
AU Gauthier, JH
Pohl, PI
AF Gauthier, John H.
Pohl, Phillip I.
TI A general framework for modeling growth and division of mammalian cells
SO BMC SYSTEMS BIOLOGY
LA English
DT Article
ID PROTEASOME-DEPENDENT DEGRADATION; HUMAN CDC25B PHOSPHATASE;
RNA-POLYMERASE-II; CYCLE CONTROL; MATHEMATICAL-MODEL; DNA-REPLICATION;
SYSTEMS BIOLOGY; BUDDING YEAST; LARGE SUBUNIT; P-SYSTEMS
AB Background: Modeling the cell-division cycle has been practiced for many years. As time has progressed, this work has gone from understanding the basic principles to addressing distinct biological problems, e. g., the nature of the restriction point, how checkpoints operate, the nonlinear dynamics of the cell cycle, the effect of localization, etc. Most models consist of coupled ordinary differential equations developed by the researchers, restricted to deal with the interactions of a limited number of molecules. In the future, cell-cycle modeling-and indeed all modeling of complex biologic processes-will increase in scope and detail.
Results: A framework for modeling complex cell-biologic processes is proposed here. The framework is based on two constructs: one describing the entire lifecycle of a molecule and the second describing the basic cellular machinery. Use of these constructs allows complex models to be built in a straightforward manner that fosters rigor and completeness. To demonstrate the framework, an example model of the mammalian cell cycle is presented that consists of several hundred differential equations of simple mass action kinetics. The model calculates energy usage, amino acid and nucleotide usage, membrane transport, RNA synthesis and destruction, and protein synthesis and destruction for 33 proteins to give an in-depth look at the cell cycle.
Conclusions: The framework presented here addresses how to develop increasingly descriptive models of complex cell-biologic processes. The example model of cellular growth and division constructed with the framework demonstrates that large structured models can be created with the framework, and these models can generate non-trivial descriptions of cellular processes. Predictions from the example model include those at both the molecular level-e. g., Wee1 spontaneously reactivates-and at the system level-e. g., pathways for timing-critical processes must shut down redundant pathways. A future effort is to automatically estimate parameter values that are insensitive to changes.
C1 [Gauthier, John H.; Pohl, Phillip I.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Gauthier, JH (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
EM jhgauth@sandia.gov
FU Sandia National Laboratories; U.S. Department of Energy's National
Nuclear Security Administration [DE-AC04-94AL85000]
FX We would like to thank the reviewers for their ideas and suggestions.
Sandia National Laboratories funded manuscript preparation. Sandia
National Laboratories is a multiprogram laboratory operated by Sandia
Corporation, a wholly owned subsidiary of Lockheed Martin Company, for
the U.S. Department of Energy's National Nuclear Security Administration
under Contract DE-AC04-94AL85000.
NR 54
TC 1
Z9 1
U1 0
U2 4
PU BIOMED CENTRAL LTD
PI LONDON
PA 236 GRAYS INN RD, FLOOR 6, LONDON WC1X 8HL, ENGLAND
SN 1752-0509
J9 BMC SYST BIOL
JI BMC Syst. Biol.
PD JAN 6
PY 2011
VL 5
AR 3
DI 10.1186/1752-0509-5-3
PG 16
WC Mathematical & Computational Biology
SC Mathematical & Computational Biology
GA 710OQ
UT WOS:000286521500001
PM 21211052
ER
PT J
AU de Boer, G
Morrison, H
Shupe, MD
Hildner, R
AF de Boer, G.
Morrison, H.
Shupe, M. D.
Hildner, R.
TI Evidence of liquid dependent ice nucleation in high-latitude stratiform
clouds from surface remote sensors
SO GEOPHYSICAL RESEARCH LETTERS
LA English
DT Article
ID BULK PARAMETERIZATION; ARCTIC-OCEAN; MODEL; ATMOSPHERE; PARTICLES;
NUCLEI
AB Ground-based lidar, radar and microwave radiometer observations at Eureka, Canada, Barrow, Alaska and over the western Arctic Ocean measure physical characteristics and morphology of stratiform clouds. Despite transition of a cold atmosphere (-15 C) through ice supersaturated conditions, ice is not observed until soon after a liquid layer. Several cases illustrating this phenomenon are presented in addition to long-term observations from three measurement sites characterizing cloud phase frequency. This analysis demonstrates that clouds composed entirely of ice occur less frequently than liquid-topped mixed-phase clouds at temperatures warmer than -25 to -30 C. These results indicate ice formation generally occurs in conjunction with liquid at these temperatures, and suggest the importance of liquid-dependent ice nucleation mechanisms. Citation: de Boer, G., H. Morrison, M. D. Shupe, and R. Hildner (2011), Evidence of liquid dependent ice nucleation in high-latitude stratiform clouds from surface remote sensors, Geophys. Res. Lett., 38, L01803, doi:10.1029/2010GL046016.
C1 [de Boer, G.] Univ Calif Berkeley, Lawrence Berkeley Lab, Environm Energy Technol Div, Berkeley, CA 94720 USA.
[Hildner, R.] Univ Wisconsin, Dept Atmospher & Ocean Sci, Madison, WI 53562 USA.
[Morrison, H.] Natl Ctr Atmospher Res, Boulder, CO 80307 USA.
[Shupe, M. D.] Univ Colorado, Cooperat Inst Res Environm Sci, PSD, ESRL,NOAA, Boulder, CO 80305 USA.
RP de Boer, G (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Environm Energy Technol Div, MS90KR107,1 Cyclotron Rd, Berkeley, CA 94720 USA.
EM gdeboer@lbl.gov
RI de Boer, Gijs/F-3949-2011; Shupe, Matthew/F-8754-2011
OI de Boer, Gijs/0000-0003-4652-7150; Shupe, Matthew/0000-0002-0973-9982
FU National Aeronautics and Space Administration [NASA: NNX07AQ81G]; US DOE
[U.S. DOE: ER64187-1027586-0011923, DE-FG02-05ER63965]; National Science
Foundation; University of California under U.S. DOE [DE-AC02-05CH11231]
FX The authors acknowledge E. Eloranta, J. Hedrick, J. Garcia and I.
Razenkov for AHSRL data and R. Moritz for advice on SHEBA sonde
measurements, as well as DOE, NOAA and SEARCH teams for MMCR data.
Information from Eureka weather station personnel was helpful in dataset
compilation. Data were also made available by the US DOE ARM program,
and the SHEBA team. Finally, we acknowledge funding from the National
Aeronautics and Space Administration (NASA: NNX07AQ81G) and US DOE (U.S.
DOE: ER64187-1027586-0011923 and DE-FG02-05ER63965). NCAR is sponsored
by the National Science Foundation. LBNL is managed by the University of
California under U.S. DOE grant DE-AC02-05CH11231.
NR 28
TC 52
Z9 52
U1 2
U2 26
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 0094-8276
J9 GEOPHYS RES LETT
JI Geophys. Res. Lett.
PD JAN 6
PY 2011
VL 38
AR L01803
DI 10.1029/2010GL046016
PG 5
WC Geosciences, Multidisciplinary
SC Geology
GA 704OB
UT WOS:000286061200004
ER
PT J
AU Wang, SZ
Wang, LW
AF Wang, Shuzhi
Wang, Lin-Wang
TI Exciton Dissociation in CdSe/CdTe Heterostructure Nanorods
SO JOURNAL OF PHYSICAL CHEMISTRY LETTERS
LA English
DT Article
ID QUANTUM DOTS; BAND OFFSETS; NANOCRYSTALS; SEMICONDUCTORS; CDSE;
CONVERSION; GROWTH; CDTE
AB Type-II heterostructure nanorods hold good prospects for efficient charge separation in nano solar cells. Here we employed local density approximation (LDA) quality plane wave pseudopotential methods to study exciton dissociation in CdSe/CdTe collinear nanorods. We corrected the LDA band gap by approximating GW equations, and studied the correlation effect with configuration interaction Methods, The calculated binding energy and radiative decay time of the charge transfer excitons agree well with experiments. The thermally activated escaping time is estimated to be shorter than the radiative recombination time, indicating the possibility of exciton dissociation, if the nonradiative channel is ignored.
C1 [Wang, Shuzhi; Wang, Lin-Wang] Univ Calif Berkeley, Lawrence Berkeley Lab, Computat Res Div, Berkeley, CA 94720 USA.
RP Wang, SZ (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Computat Res Div, 1 Cyclotron Rd,Mail Stop 50 F, Berkeley, CA 94720 USA.
EM swang2@lbl.gov
RI Wang, Shuzhi/A-1799-2009
FU Office of Science, Office of Basic Energy Sciences, Materials Science
and Engineering Division, of the U.S. Department of Energy (DOE)
[DE-AC02-05CH11231]
FX This work was performed in the Helios Solar Energy Research Center which
is supported by the Director, Office of Science, Office of Basic Energy
Sciences, Materials Science and Engineering Division, of the U.S.
Department of Energy (DOE) under Contract No. DE-AC02-05CH11231. This
research used the computational resources of the National Energy
Research Scientific Computing Center (NERSC) and the National Center for
Computational Sciences (NCCS), with the computational time allocated by
the Innovative and Novel Computational Impact on Theory and Experiment
(INCITE) project, of DOE.
NR 32
TC 25
Z9 25
U1 1
U2 33
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1948-7185
J9 J PHYS CHEM LETT
JI J. Phys. Chem. Lett.
PD JAN 6
PY 2011
VL 2
IS 1
BP 1
EP 6
DI 10.1021/jz101423s
PG 6
WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science,
Multidisciplinary; Physics, Atomic, Molecular & Chemical
SC Chemistry; Science & Technology - Other Topics; Materials Science;
Physics
GA 704CC
UT WOS:000286027700001
PM 26295205
ER
PT J
AU Wender, P
Cummins, CC
Poliakoff, M
Kiessling, L
Meijer, EW
Alivisatos, P
Wooley, K
King, D
Aizenberg, J
Fleming, G
AF Wender, Paul
Cummins, Christopher C.
Poliakoff, Martyn
Kiessling, Laura
Meijer, E. W. 'Bert'
Alivisatos, Paul
Wooley, Karen
King, David
Aizenberg, Joanna
Fleming, Graham
TI What lies ahead
SO NATURE
LA English
DT Editorial Material
C1 [Wender, Paul] Stanford Univ, Stanford, CA 94305 USA.
[Cummins, Christopher C.] MIT, Cambridge, MA 02139 USA.
[Poliakoff, Martyn] Univ Nottingham, Nottingham NG7 2RD, England.
[Kiessling, Laura] Univ Wisconsin, Madison, WI 53706 USA.
[Meijer, E. W. 'Bert'] Eindhoven Univ Technol, NL-5600 MB Eindhoven, Netherlands.
[Alivisatos, Paul] Lawrence Berkeley Natl Lab, Berkeley, CA USA.
[Wooley, Karen] Texas A&M Univ, College Stn, TX USA.
[King, David] Smith Sch Enterprise & Environm, Oxford, England.
[Aizenberg, Joanna] Harvard Univ, Cambridge, MA 02138 USA.
[Fleming, Graham] Univ Calif Berkeley, Berkeley, CA 94720 USA.
RP Wender, P (reprint author), Stanford Univ, Stanford, CA 94305 USA.
RI Meijer, E.W./K-7632-2013; Wooley, Karen/D-4399-2015
OI Meijer, E.W./0000-0003-4126-7492; Wooley, Karen/0000-0003-4086-384X
NR 0
TC 11
Z9 11
U1 6
U2 77
PU NATURE PUBLISHING GROUP
PI LONDON
PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND
SN 0028-0836
J9 NATURE
JI Nature
PD JAN 6
PY 2011
VL 469
IS 7328
BP 23
EP 25
PG 3
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 702UO
UT WOS:000285921600011
ER
PT J
AU Nigmanov, TS
Rajaram, D
Longo, MJ
Akgun, U
Aydin, G
Baker, W
Barnes, PD
Bergfeld, T
Bujak, A
Carey, D
Dukes, EC
Duru, F
Feldman, GJ
Godley, A
Gulmez, E
Gunaydin, YO
Graf, N
Gustafson, HR
Gutay, L
Hartouni, E
Hanlet, P
Heffner, M
Johnstone, C
Kaplan, DM
Kamaev, O
Klay, J
Kostin, M
Lange, D
Lebedev, A
Lu, LC
Materniak, C
Messier, MD
Meyer, H
Miller, DE
Mishra, SR
Nelson, KS
Norman, A
Onel, Y
Paley, JM
Park, HK
Penzo, A
Peterson, RJ
Raja, R
Rosenfeld, C
Rubin, HA
Seun, S
Solomey, N
Soltz, R
Swallow, E
Torun, Y
Wilson, K
Wright, D
Wu, K
AF Nigmanov, T. S.
Rajaram, D.
Longo, M. J.
Akgun, U.
Aydin, G.
Baker, W.
Barnes, P. D., Jr.
Bergfeld, T.
Bujak, A.
Carey, D.
Dukes, E. C.
Duru, F.
Feldman, G. J.
Godley, A.
Gulmez, E.
Gunaydin, Y. O.
Graf, N.
Gustafson, H. R.
Gutay, L.
Hartouni, E.
Hanlet, P.
Heffner, M.
Johnstone, C.
Kaplan, D. M.
Kamaev, O.
Klay, J.
Kostin, M.
Lange, D.
Lebedev, A.
Lu, L. C.
Materniak, C.
Messier, M. D.
Meyer, H.
Miller, D. E.
Mishra, S. R.
Nelson, K. S.
Norman, A.
Onel, Y.
Paley, J. M.
Park, H. K.
Penzo, A.
Peterson, R. J.
Raja, R.
Rosenfeld, C.
Rubin, H. A.
Seun, S.
Solomey, N.
Soltz, R.
Swallow, E.
Torun, Y.
Wilson, K.
Wright, D.
Wu, K.
CA MIPP Collaboration
TI Forward neutron production at the Fermilab Main Injector
SO PHYSICAL REVIEW D
LA English
DT Article
ID SPECTRA; MIPP; ISR
AB We have measured cross sections for forward neutron production from a variety of targets using proton beams from the Fermilab Main Injector. Measurements were performed for proton beam momenta of 58, 84, and 120 GeV/c. The cross section dependence on the atomic weight (A) of the targets was found to vary as A(alpha), where alpha is 0.46 +/- 0.06 for a beam momentum of 58 GeV/c and 0.54 +/- 0.05 for 120 GeV/c. The cross sections show reasonable agreement with FLUKA and DPMJET Monte Carlos. Comparisons have also been made with the LAQGSM Monte Carlo.
C1 [Nigmanov, T. S.; Rajaram, D.; Longo, M. J.; Gustafson, H. R.; Park, H. K.] Univ Michigan, Ann Arbor, MI 48109 USA.
Brookhaven Natl Lab, Upton, NY 11973 USA.
[Swallow, E.] Elmhurst Coll, Elmhurst, IL 60126 USA.
[Baker, W.; Carey, D.; Johnstone, C.; Kostin, M.; Norman, A.; Raja, R.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
[Feldman, G. J.; Lebedev, A.; Seun, S.] Harvard Univ, Cambridge, MA 02138 USA.
[Hanlet, P.; Kaplan, D. M.; Kamaev, O.; Rubin, H. A.; Torun, Y.] Illinois Inst Technol, Chicago, IL 60616 USA.
[Graf, N.; Messier, M. D.; Paley, J. M.] Indiana Univ, Bloomington, IN 47403 USA.
[Barnes, P. D., Jr.; Hartouni, E.; Heffner, M.; Klay, J.; Lange, D.; Soltz, R.; Wright, D.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Bujak, A.; Gutay, L.; Miller, D. E.] Purdue Univ, W Lafayette, IN 47907 USA.
[Peterson, R. J.] Univ Colorado, Boulder, CO 80309 USA.
[Akgun, U.; Aydin, G.; Duru, F.; Gulmez, E.; Gunaydin, Y. O.; Onel, Y.; Penzo, A.] Univ Iowa, Iowa City, IA 52242 USA.
[Bergfeld, T.; Godley, A.; Mishra, S. R.; Rosenfeld, C.; Wilson, K.; Wu, K.] Univ S Carolina, Columbia, SC 29208 USA.
[Dukes, E. C.; Lu, L. C.; Materniak, C.; Nelson, K. S.; Norman, A.] Univ Virginia, Charlottesville, VA 22904 USA.
[Meyer, H.; Solomey, N.] Wichita State Univ, Wichita, KS 67260 USA.
RP Longo, MJ (reprint author), Univ Michigan, Ann Arbor, MI 48109 USA.
EM mlongo@umich.edu
RI Gunaydin, Yusuf/F-7300-2014; Lu, Lanchun/E-3551-2011; Gulmez,
Erhan/P-9518-2015;
OI Gunaydin, Yusuf/0000-0002-0514-6936; Gulmez, Erhan/0000-0002-6353-518X;
Norman, Andrew/0000-0001-8572-956X; Longo, Michael/0000-0002-5762-8670;
Torun, Yagmur/0000-0003-2336-6585; Hartouni, Edward/0000-0001-9869-4351
FU National Nuclear Security Administration [DE-FG52-2006NA26182]; U.S.
Department of Energy
FX The efforts of the Fermilab staff are gratefully acknowledged. We are
grateful to N.V. Mokhov, S. I. Striganov, and K. K. Gudima for providing
the LAQGSM simulations. This research was sponsored by the National
Nuclear Security Administration under the Stewardship Science Academic
Alliances program through DOE Research Grant No. DE-FG52-2006NA26182 and
the U.S. Department of Energy.
NR 27
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U1 0
U2 3
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1550-7998
J9 PHYS REV D
JI Phys. Rev. D
PD JAN 6
PY 2011
VL 83
IS 1
AR 012002
DI 10.1103/PhysRevD.83.012002
PG 15
WC Astronomy & Astrophysics; Physics, Particles & Fields
SC Astronomy & Astrophysics; Physics
GA 713TK
UT WOS:000286760100006
ER
PT J
AU Hunter, MS
DePonte, DP
Shapiro, DA
Kirian, RA
Wang, X
Starodub, D
Marchesini, S
Weierstall, U
Doak, RB
Spence, JCH
Fromme, P
AF Hunter, M. S.
DePonte, D. P.
Shapiro, D. A.
Kirian, R. A.
Wang, X.
Starodub, D.
Marchesini, S.
Weierstall, U.
Doak, R. B.
Spence, J. C. H.
Fromme, P.
TI X-ray Diffraction from Membrane Protein Nanocrystals
SO BIOPHYSICAL JOURNAL
LA English
DT Article
ID CYTOCHROME B(6)F COMPLEX; PHOTOSYSTEM-I; ANGSTROM RESOLUTION;
CRYSTAL-STRUCTURE; COUPLED RECEPTOR; 3-DIMENSIONAL STRUCTURE;
RADIATION-DAMAGE; CRYSTALLOGRAPHY; CRYSTALLIZATION; PHOTOSYNTHESIS
AB Membrane proteins constitute >30% of the proteins in an average cell, and yet the number of currently known structures of unique membrane proteins is <300. To develop new concepts for membrane protein structure determination, we have explored the serial nanocrystallography method, in which fully hydrated protein nanocrystals are delivered to an x-ray beam within a liquid jet at room temperature. As a model system, we have collected x-ray powder diffraction data from the integral membrane protein Photosystem I, which consists of 36 subunits and 381 cofactors. Data were collected from crystals ranging in size from 100 nm to 2 mu m. The results demonstrate that there are membrane protein crystals that contain <100 unit cells (200 total molecules) and that 3D crystals of membrane proteins, which contain <200 molecules, may be suitable for structural investigation. Serial nanocrystallography overcomes the problem of x-ray damage, which is currently one of the major limitations for x-ray structure determination of small crystals. By combining serial nanocrystallography with x-ray free-electron laser sources in the future, it may be possible to produce molecular-resolution electron-density maps using membrane protein crystals that contain only a few hundred or thousand unit cells.
C1 [Hunter, M. S.; Fromme, P.] Arizona State Univ, Dept Chem & Biochem, Tempe, AZ 85287 USA.
[DePonte, D. P.; Kirian, R. A.; Wang, X.; Starodub, D.; Weierstall, U.; Doak, R. B.; Spence, J. C. H.] Arizona State Univ, Dept Phys, Tempe, AZ 85287 USA.
[DePonte, D. P.] Univ Hamburg, CFEL, Hamburg, Germany.
[Shapiro, D. A.; Marchesini, S.] Univ Calif Berkeley, Lawrence Berkeley Lab, Adv Light Source, Berkeley, CA 94720 USA.
[Shapiro, D. A.] Brookhaven Natl Lab, Upton, NY 11973 USA.
[Starodub, D.] Stanford Linear Accelerator Ctr, PULSE Inst, Natl Accelerator Lab, Menlo Pk, CA USA.
RP Fromme, P (reprint author), Arizona State Univ, Dept Chem & Biochem, Tempe, AZ 85287 USA.
EM pfromme@asu.edu
RI Marchesini, Stefano/A-6795-2009; Kirian, Richard/M-3750-2013;
OI Kirian, Richard/0000-0001-7197-3086
FU National Science Foundation [0555845, 0417142]; Center for Biophotonics
Science and Technology (University of California at Davis); Lawrence
Berkeley National Laboratory; National Institutes of Health
[1R01GM095583-01]; US Department of Energy, Office of Science, Office of
Basic Energy Sciences [DE-SC0001016, DE-AC02-05CH11231]
FX This work was supported by a National Science Foundation award IDBR
0555845, the Center for Biophotonics Science and Technology (University
of California at Davis), the Lawrence Berkeley National Laboratory
Seaborg Fellowship award, the National Science Foundation award 0417142,
and the National Institutes of Health award 1R01GM095583-01. P.F. (part
of summer salary) was supported as part of the Center for Bio-Inspired
Solar Fuel Production, an Energy Frontier Research Center funded by the
US Department of Energy, Office of Science, Office of Basic Energy
Sciences under award mumber DE-SC0001016. The Advanced Light Source is
supported by the Director, Office of Science, Office of Basic Energy
Sciences, of the US Department of Energy under contract No.
DE-AC02-05CH11231. The authors have no competing financial interests.
NR 44
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U1 2
U2 31
PU CELL PRESS
PI CAMBRIDGE
PA 600 TECHNOLOGY SQUARE, 5TH FLOOR, CAMBRIDGE, MA 02139 USA
SN 0006-3495
J9 BIOPHYS J
JI Biophys. J.
PD JAN 5
PY 2011
VL 100
IS 1
BP 198
EP 206
DI 10.1016/j.bpj.2010.10.049
PG 9
WC Biophysics
SC Biophysics
GA 705KF
UT WOS:000286126600023
PM 21190672
ER
PT J
AU Meehan, TF
Masci, AM
Abdulla, A
Cowell, LG
Blake, JA
Mungall, CJ
Diehl, AD
AF Meehan, Terrence F.
Masci, Anna Maria
Abdulla, Amina
Cowell, Lindsay G.
Blake, Judith A.
Mungall, Christopher J.
Diehl, Alexander D.
TI Logical Development of the Cell Ontology
SO BMC BIOINFORMATICS
LA English
DT Article
ID T-CELLS; NKT CELLS; INTEGRATION; SYNAPSE; SYSTEM
AB Background: The Cell Ontology (CL) is an ontology for the representation of in vivo cell types. As biological ontologies such as the CL grow in complexity, they become increasingly difficult to use and maintain. By making the information in the ontology computable, we can use automated reasoners to detect errors and assist with classification. Here we report on the generation of computable definitions for the hematopoietic cell types in the CL.
Results: Computable definitions for over 340 CL classes have been created using a genus-differentia approach. These define cell types according to multiple axes of classification such as the protein complexes found on the surface of a cell type, the biological processes participated in by a cell type, or the phenotypic characteristics associated with a cell type. We employed automated reasoners to verify the ontology and to reveal mistakes in manual curation. The implementation of this process exposed areas in the ontology where new cell type classes were needed to accommodate species-specific expression of cellular markers. Our use of reasoners also inferred new relationships within the CL, and between the CL and the contributing ontologies. This restructured ontology can be used to identify immune cells by flow cytometry, supports sophisticated biological queries involving cells, and helps generate new hypotheses about cell function based on similarities to other cell types.
Conclusion: Use of computable definitions enhances the development of the CL and supports the interoperability of OBO ontologies.
C1 [Meehan, Terrence F.; Blake, Judith A.; Diehl, Alexander D.] Jackson Lab, Bar Harbor, ME 04609 USA.
[Masci, Anna Maria; Cowell, Lindsay G.] Duke Univ, Med Ctr, Dept Biostat & Bioinformat, Durham, NC USA.
[Abdulla, Amina; Mungall, Christopher J.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
[Diehl, Alexander D.] SUNY Buffalo, Sch Med & Biomed Sci, Dept Neurol, Buffalo, NY 14260 USA.
RP Meehan, TF (reprint author), Jackson Lab, 600 Main St, Bar Harbor, ME 04609 USA.
EM tmeehan@informatics.jax.org; addiehl@buffalo.edu
RI Diehl, Alexander/G-9883-2016;
OI Diehl, Alexander/0000-0001-9990-8331; Mungall,
Christopher/0000-0002-6601-2165; Masci, Anna Maria/0000-0003-1940-6740;
Meehan, Terrence/0000-0003-1980-3228; Blake, Judith/0000-0001-8522-334X
FU NHGRI [HG002273-09Z, HG002273]; NIAID [R01 (AI077706)]; Office of
Science, Office of Basic Energy Sciences, of the U.S. Department of
Energy [DE-AC02-05CH11231]
FX TFM, CJM, AA, and ADD contributions were supported by an NHGRI-funded,
ARRA administrative supplement grant HG002273-09Z to the parent grant,
HG002273, to the Gene Ontology Consortium; Judith A. Blake, Michael
Ashburner, Suzanna Lewis, J. Michael Cherry, PIs. LGC's contributions
were supported by an NIAID-funded R01 (AI077706) and a Career Award at
the Scientific Interface from the Burroughs-Wellcome Fund. This work was
supported by the Director, Office of Science, Office of Basic Energy
Sciences, of the U.S. Department of Energy under Contract No.
DE-AC02-05CH11231.
NR 31
TC 56
Z9 58
U1 0
U2 2
PU BIOMED CENTRAL LTD
PI LONDON
PA 236 GRAYS INN RD, FLOOR 6, LONDON WC1X 8HL, ENGLAND
SN 1471-2105
J9 BMC BIOINFORMATICS
JI BMC Bioinformatics
PD JAN 5
PY 2011
VL 12
AR 6
DI 10.1186/1471-2105-12-6
PG 12
WC Biochemical Research Methods; Biotechnology & Applied Microbiology;
Mathematical & Computational Biology
SC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology;
Mathematical & Computational Biology
GA 709DO
UT WOS:000286417700001
PM 21208450
ER
PT J
AU Juarez-Arellano, EA
Winkler, B
Vogel, SC
Senyshyn, A
Kammler, DR
Avalos-Borja, M
AF Juarez-Arellano, Erick A.
Winkler, Bjorn
Vogel, Sven C.
Senyshyn, Anatoliy
Kammler, Daniel R.
Avalos-Borja, Miguel
TI In situ observation of the reaction of scandium and carbon by neutron
diffraction
SO JOURNAL OF ALLOYS AND COMPOUNDS
LA English
DT Article
DE Scandium carbide; Neutron diffraction
ID ELEMENTS
AB The formation of scandium carbides by reaction of the elements has been investigated by in situ neutron diffraction up to 1823K. On heating, the recrystallization of alpha-Sc occurs between 1000 and 1223 K. The formation of Sc2C and ScC (NaCI-B1) type structure) phases has been detected at 1323 and 1373 K, respectively. The formation of a new orthorhombic scandium carbide phase was observed at 1473(50) K. Once the scandium carbides are formed they are stable upon heating or cooling. No other phases were detected in the present study, in which the system was always carbon saturated. The thermal expansion coefficients of all phases have been determined, they are constant throughout the temperature interval studied. (C) 2010 Elsevier B.V. All rights reserved.
C1 [Juarez-Arellano, Erick A.; Winkler, Bjorn] Goethe Univ Frankfurt, Inst Geowissensch, D-60438 Frankfurt, Germany.
[Juarez-Arellano, Erick A.] Univ Papaloapan, Parque Ind 68301, Tuxtepec, Mexico.
[Vogel, Sven C.] Los Alamos Natl Lab, Lujan Ctr, Los Alamos, NM 87545 USA.
[Senyshyn, Anatoliy] Tech Univ Munich, Forsch Neutronenquelle Heinz Maier Leibnitz FRM I, D-85747 Garching, Germany.
[Senyshyn, Anatoliy] Tech Univ Darmstadt, D-64287 Darmstadt, Germany.
[Kammler, Daniel R.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
[Avalos-Borja, Miguel] UNAM, CNyN, Ensenada, Baja California, Mexico.
RP Juarez-Arellano, EA (reprint author), Goethe Univ Frankfurt, Inst Geowissensch, Altenhoferallee 1, D-60438 Frankfurt, Germany.
EM eajuarez@unpa.edu.mx
RI Lujan Center, LANL/G-4896-2012; Senyshyn, Anatoliy/C-8267-2014;
OI Senyshyn, Anatoliy/0000-0002-1473-8992; Juarez-Arellano,
Erick/0000-0003-4844-8317; Vogel, Sven C./0000-0003-2049-0361
FU Deutsche Forschungsgemeinschaft [Wi-1232, DFG-SPP 1236]; DGAPA-UNAM
[IN-108908]; CONACyT-DAAD PROALMEX grant; DOE [DE-AC52-06NA25396];
United States Department of Energy (DOE) [DE-AC04-94AL85000]; Department
of Energys Office of Basic-Energy Science
FX This research was supported by Deutsche Forschungsgemeinschaft (Project
Wi-1232), in the framework of the DFG-SPP 1236. This research was
partially supported by DGAPA-UNAM grant IN-108908 and CONACyT-DAAD
PROALMEX grant. LANL is operated by the Los Alamos National Security LLC
under the DOE Contract of DE-AC52-06NA25396. The Lujan Neutron
Scattering Center at the Los Alamos Neutron Science Center is funded by
the Department of Energys Office of Basic-Energy Science. Sandia is a
multiprogram laboratory operated by Sandia Corporation, a Lockheed
Martin Company, for the United States Department of Energy (DOE) under
Contract No. DE-AC04-94AL85000.
NR 18
TC 1
Z9 1
U1 0
U2 10
PU ELSEVIER SCIENCE SA
PI LAUSANNE
PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND
SN 0925-8388
J9 J ALLOY COMPD
JI J. Alloy. Compd.
PD JAN 5
PY 2011
VL 509
IS 1
BP 1
EP 5
DI 10.1016/j.jallcom.2010.08.081
PG 5
WC Chemistry, Physical; Materials Science, Multidisciplinary; Metallurgy &
Metallurgical Engineering
SC Chemistry; Materials Science; Metallurgy & Metallurgical Engineering
GA 682GS
UT WOS:000284390000002
ER
PT J
AU Lu, GP
Liu, HH
Salve, R
AF Lu, Guoping
Liu, Hui-Hai
Salve, Rohit
TI Long term infiltration and tracer transport in fractured rocks: Field
observations and model analyses
SO JOURNAL OF HYDROLOGY
LA English
DT Article
DE Unsaturated flow; Tracer transport; Fractured rock; Infiltration;
Seepage; Matrix diffusion
ID EFFECTIVE MATRIX DIFFUSION; YUCCA MOUNTAIN; SOLUTE TRANSPORT; SCALE
DEPENDENCE; CRYSTALLINE ROCK; POROUS-MEDIA; WATER-FLOW; COEFFICIENT;
TESTS; NEVADA
AB This paper presents modeling analyses of long term infiltration and tracer tests in fractured tuffs at Yucca Mountain, NV, USA. The experiments were conducted on a 20 m thick tuff section in a flyover formed by two exploratory tunnels. The infiltration test last for 870 days. Both measured infiltration and seepage show significant temporal and spatial variations. The tracer test used inorganic tracers (I-, Br-, F-) and organic tracers (fluorobenzoic acids) released 559 days after the infiltration test started. Leaching from dry salts from fracture walls was found to have affected tracer breakthroughs. The unsaturated flow was evaluated by optimizing 45 parameter values in a three-dimensional model, which accounts for fracture-matrix interaction and heterogeneous hydraulic properties in a column-based scheme. The field data are valuable asset to evaluate the modeling approaches for fractured rocks and the relative importance of the matrix diffusion process. Results show that matrix diffusion is an important process for transport, and that effective matrix-diffusion coefficients at the field-scale are larger than those at the laboratory-scale for the solutes. Published by Elsevier B.V.
C1 [Lu, Guoping; Liu, Hui-Hai; Salve, Rohit] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Earth Sci, Berkeley, CA 94720 USA.
[Lu, Guoping] Chengdu Univ Technol, State Key Lab Geohazard Prevent & Geoenvironm Pro, Chengdu 610059, Sichuan, Peoples R China.
RP Lu, GP (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Div Earth Sci, Berkeley, CA 94720 USA.
EM GuopingLu@yahoo.com; HHliu@lbl.gov; R_Salve@lbl.gov
FU Office of Civilian Radioactive Waste Management, of the US Department of
Energy [DE-AC02-05CH11231]
FX The authors are grateful to internal review by Guoxiang Zhang and
editorial work by Daniel Hawkes for this paper. This work was supported
by the Director, Office of Civilian Radioactive Waste Management, of the
US Department of Energy under Contract No. DE-AC02-05CH11231.
NR 43
TC 4
Z9 5
U1 2
U2 15
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0022-1694
J9 J HYDROL
JI J. Hydrol.
PD JAN 5
PY 2011
VL 396
IS 1-2
BP 33
EP 48
DI 10.1016/j.jhydrol.2010.10.030
PG 16
WC Engineering, Civil; Geosciences, Multidisciplinary; Water Resources
SC Engineering; Geology; Water Resources
GA 710TR
UT WOS:000286540400004
ER
PT J
AU Abbasi, R
Abdou, Y
Abu-Zayyad, T
Adams, J
Aguilar, JA
Ahlers, M
Andeen, K
Auffenberg, J
Bai, X
Baker, M
Barwick, SW
Bay, R
Alba, JLB
Beattie, K
Beatty, JJ
Bechet, S
Becker, JK
Becker, KH
Benabderrahmane, ML
BenZvi, S
Berdermann, J
Berghaus, P
Berley, D
Bernardini, E
Bertrand, D
Besson, DZ
Bissok, M
Blaufuss, E
Blumenthal, J
Boersma, DJ
Bohm, C
Bose, D
Boser, S
Botner, O
Braun, J
Buitink, S
Carson, M
Chirkin, D
Christy, B
Clem, J
Clevermann, F
Cohen, S
Colnard, C
Cowen, DF
D'Agostino, MV
Danninger, M
Davis, JC
De Clercq, C
Demirors, L
Depaepe, O
Descamps, F
Desiati, P
de Vries-Uiterweerd, G
DeYoung, T
Diaz-Velez, JC
Dierckxsens, M
Dreyer, J
Dumm, JP
Duvoort, MR
Ehrlich, R
Eisch, J
Ellsworth, RW
Engdegard, O
Euler, S
Evenson, PA
Fadiran, O
Fazely, AR
Fedynitch, A
Feusels, T
Filimonov, K
Finley, C
Foerster, MM
Fox, BD
Franckowiak, A
Franke, R
Gaisser, TK
Gallagher, J
Geisler, M
Gerhardt, L
Gladstone, L
Glusenkamp, T
Goldschmidt, A
Goodman, JA
Grant, D
Griesel, T
Gross, A
Grullon, S
Gurtner, M
Ha, C
Hallgren, A
Halzen, F
Han, K
Hanson, K
Helbing, K
Herquet, P
Hickford, S
Hill, GC
Hoffman, KD
Homeier, A
Hoshina, K
Hubert, D
Huelsnitz, W
Hulss, JP
Hulth, PO
Hultqvist, K
Hussain, S
Ishihara, A
Jacobsen, J
Japaridze, GS
Johansson, H
Joseph, JM
Kampert, KH
Kappes, A
Karg, T
Karle, A
Kelley, JL
Kemming, N
Kenny, P
Kiryluk, J
Kislat, F
Klein, SR
Kohne, JH
Kohnen, G
Kolanoski, H
Kopke, L
Koskinen, DJ
Kowalski, M
Kowarik, T
Krasberg, M
Krings, T
Kroll, G
Kuehn, K
Kuwabara, T
Labare, M
Lafebre, S
Laihem, K
Landsman, H
Larson, MJ
Lauer, R
Lehmann, R
Lunemann, J
Madsen, J
Majumdar, P
Marotta, A
Maruyama, R
Mase, K
Matis, HS
Matusik, M
Meagher, K
Merck, M
Meszaros, P
Meures, T
Middell, E
Milke, N
Miller, J
Montaruli, T
Morse, R
Movit, SM
Nahnhauer, R
Nam, JW
Naumann, U
Niessen, P
Nygren, DR
Odrowski, S
Olivas, A
Olivo, M
O'Murchadha, A
Ono, M
Panknin, S
Paul, L
de los Heros, CP
Petrovic, J
Piegsa, A
Pieloth, D
Porrata, R
Posselt, J
Price, PB
Prikockis, M
Przybylski, GT
Rawlins, K
Redl, P
Resconi, E
Rhode, W
Ribordy, M
Rizzo, A
Rodrigues, JP
Roth, P
Rothmaier, F
Rott, C
Ruhe, T
Rutledge, D
Ruzybayev, B
Ryckbosch, D
Sander, HG
Santander, M
Sarkar, S
Schatto, K
Schlenstedt, S
Schmidt, T
Schukraft, A
Schultes, A
Schulz, O
Schunck, M
Seckel, D
Semburg, B
Seo, SH
Sestayo, Y
Seunarine, S
Silvestri, A
Singh, K
Slipak, A
Spiczak, GM
Spiering, C
Stamatikos, M
Stanev, T
Stephens, G
Stezelberger, T
Stokstad, RG
Stoyanov, S
Strahler, EA
Straszheim, T
Sullivan, GW
Swillens, Q
Taavola, H
Taboada, I
Tamburro, A
Tarasova, O
Tepe, A
Ter-Antonyan, S
Tilav, S
Toale, PA
Toscano, S
Tosi, D
Turcan, D
van Eijndhoven, N
Vandenbroucke, J
Van Overloop, A
van Santen, J
Voge, M
Voigt, B
Walck, C
Waldenmaier, T
Wallraff, M
Walter, M
Weaver, C
Wendt, C
Westerhoff, S
Whitehorn, N
Wiebe, K
Wiebusch, CH
Wikstrom, G
Williams, DR
Wischnewski, R
Wissing, H
Wolf, M
Woschnagg, K
Xu, C
Xu, XW
Yodh, G
Yoshida, S
Zarzhitsky, P
AF Abbasi, R.
Abdou, Y.
Abu-Zayyad, T.
Adams, J.
Aguilar, J. A.
Ahlers, M.
Andeen, K.
Auffenberg, J.
Bai, X.
Baker, M.
Barwick, S. W.
Bay, R.
Alba, J. L. Bazo
Beattie, K.
Beatty, J. J.
Bechet, S.
Becker, J. K.
Becker, K. -H.
Benabderrahmane, M. L.
BenZvi, S.
Berdermann, J.
Berghaus, P.
Berley, D.
Bernardini, E.
Bertrand, D.
Besson, D. Z.
Bissok, M.
Blaufuss, E.
Blumenthal, J.
Boersma, D. J.
Bohm, C.
Bose, D.
Boeser, S.
Botner, O.
Braun, J.
Buitink, S.
Carson, M.
Chirkin, D.
Christy, B.
Clem, J.
Clevermann, F.
Cohen, S.
Colnard, C.
Cowen, D. F.
D'Agostino, M. V.
Danninger, M.
Davis, J. C.
De Clercq, C.
Demiroers, L.
Depaepe, O.
Descamps, F.
Desiati, P.
de Vries-Uiterweerd, G.
DeYoung, T.
Diaz-Velez, J. C.
Dierckxsens, M.
Dreyer, J.
Dumm, J. P.
Duvoort, M. R.
Ehrlich, R.
Eisch, J.
Ellsworth, R. W.
Engdegard, O.
Euler, S.
Evenson, P. A.
Fadiran, O.
Fazely, A. R.
Fedynitch, A.
Feusels, T.
Filimonov, K.
Finley, C.
Foerster, M. M.
Fox, B. D.
Franckowiak, A.
Franke, R.
Gaisser, T. K.
Gallagher, J.
Geisler, M.
Gerhardt, L.
Gladstone, L.
Gluesenkamp, T.
Goldschmidt, A.
Goodman, J. A.
Grant, D.
Griesel, T.
Gross, A.
Grullon, S.
Gurtner, M.
Ha, C.
Hallgren, A.
Halzen, F.
Han, K.
Hanson, K.
Helbing, K.
Herquet, P.
Hickford, S.
Hill, G. C.
Hoffman, K. D.
Homeier, A.
Hoshina, K.
Hubert, D.
Huelsnitz, W.
Huelss, J. -P.
Hulth, P. O.
Hultqvist, K.
Hussain, S.
Ishihara, A.
Jacobsen, J.
Japaridze, G. S.
Johansson, H.
Joseph, J. M.
Kampert, K. -H.
Kappes, A.
Karg, T.
Karle, A.
Kelley, J. L.
Kemming, N.
Kenny, P.
Kiryluk, J.
Kislat, F.
Klein, S. R.
Koehne, J. -H.
Kohnen, G.
Kolanoski, H.
Koepke, L.
Koskinen, D. J.
Kowalski, M.
Kowarik, T.
Krasberg, M.
Krings, T.
Kroll, G.
Kuehn, K.
Kuwabara, T.
Labare, M.
Lafebre, S.
Laihem, K.
Landsman, H.
Larson, M. J.
Lauer, R.
Lehmann, R.
Luenemann, J.
Madsen, J.
Majumdar, P.
Marotta, A.
Maruyama, R.
Mase, K.
Matis, H. S.
Matusik, M.
Meagher, K.
Merck, M.
Meszaros, P.
Meures, T.
Middell, E.
Milke, N.
Miller, J.
Montaruli, T.
Morse, R.
Movit, S. M.
Nahnhauer, R.
Nam, J. W.
Naumann, U.
Niessen, P.
Nygren, D. R.
Odrowski, S.
Olivas, A.
Olivo, M.
O'Murchadha, A.
Ono, M.
Panknin, S.
Paul, L.
Perez de los Heros, C.
Petrovic, J.
Piegsa, A.
Pieloth, D.
Porrata, R.
Posselt, J.
Price, P. B.
Prikockis, M.
Przybylski, G. T.
Rawlins, K.
Redl, P.
Resconi, E.
Rhode, W.
Ribordy, M.
Rizzo, A.
Rodrigues, J. P.
Roth, P.
Rothmaier, F.
Rott, C.
Ruhe, T.
Rutledge, D.
Ruzybayev, B.
Ryckbosch, D.
Sander, H. -G.
Santander, M.
Sarkar, S.
Schatto, K.
Schlenstedt, S.
Schmidt, T.
Schukraft, A.
Schultes, A.
Schulz, O.
Schunck, M.
Seckel, D.
Semburg, B.
Seo, S. H.
Sestayo, Y.
Seunarine, S.
Silvestri, A.
Singh, K.
Slipak, A.
Spiczak, G. M.
Spiering, C.
Stamatikos, M.
Stanev, T.
Stephens, G.
Stezelberger, T.
Stokstad, R. G.
Stoyanov, S.
Strahler, E. A.
Straszheim, T.
Sullivan, G. W.
Swillens, Q.
Taavola, H.
Taboada, I.
Tamburro, A.
Tarasova, O.
Tepe, A.
Ter-Antonyan, S.
Tilav, S.
Toale, P. A.
Toscano, S.
Tosi, D.
Turcan, D.
van Eijndhoven, N.
Vandenbroucke, J.
Van Overloop, A.
van Santen, J.
Voge, M.
Voigt, B.
Walck, C.
Waldenmaier, T.
Wallraff, M.
Walter, M.
Weaver, Ch.
Wendt, C.
Westerhoff, S.
Whitehorn, N.
Wiebe, K.
Wiebusch, C. H.
Wikstrom, G.
Williams, D. R.
Wischnewski, R.
Wissing, H.
Wolf, M.
Woschnagg, K.
Xu, C.
Xu, X. W.
Yodh, G.
Yoshida, S.
Zarzhitsky, P.
TI Measurement of the atmospheric neutrino energy spectrum from 100 GeV to
400 TeV with IceCube
SO PHYSICAL REVIEW D
LA English
DT Article
ID SOUTH-POLE; TRACK RECONSTRUCTION; OPTICAL-PROPERTIES; DEEP ICE;
TELESCOPES; ABSORPTION; SCATTERING; DETECTOR; AMANDA; FLUX
AB A measurement of the atmospheric muon neutrino energy spectrum from 100 GeV to 400 TeV was performed using a data sample of about 18 000 up-going atmospheric muon neutrino events in IceCube. Boosted decision trees were used for event selection to reject misreconstructed atmospheric muons and obtain a sample of up-going muon neutrino events. Background contamination in the final event sample is less than 1%. This is the first measurement of atmospheric neutrinos up to 400 TeV, and is fundamental to understanding the impact of this neutrino background on astrophysical neutrino observations with IceCube. The measured spectrum is consistent with predictions for the atmospheric nu(mu) + (nu) over bar (mu) flux.
C1 [Berley, D.; Blaufuss, E.; Christy, B.; Ehrlich, R.; Ellsworth, R. W.; Goodman, J. A.; Hoffman, K. D.; Huelsnitz, W.; Meagher, K.; Olivas, A.; Redl, P.; Roth, P.; Schmidt, T.; Straszheim, T.; Sullivan, G. W.; Turcan, D.; Wissing, H.] Univ Maryland, Dept Phys, College Pk, MD 20742 USA.
[Bissok, M.; Blumenthal, J.; Boersma, D. J.; Euler, S.; Geisler, M.; Gluesenkamp, T.; Huelss, J. -P.; Krings, T.; Laihem, K.; Meures, T.; Paul, L.; Schukraft, A.; Schunck, M.; Wallraff, M.; Wiebusch, C. H.] Rhein Westfal TH Aachen, Inst Phys 3, D-52056 Aachen, Germany.
[Williams, D. R.; Zarzhitsky, P.] Univ Alabama, Dept Phys & Astron, Tuscaloosa, AL 35487 USA.
[Rawlins, K.] Univ Alaska Anchorage, Dept Phys & Astron, Anchorage, AK 99508 USA.
[Fadiran, O.; Japaridze, G. S.] Clark Atlanta Univ, CTSPS, Atlanta, GA 30314 USA.
[Taboada, I.; Tepe, A.] Georgia Inst Technol, Sch Phys, Atlanta, GA 30332 USA.
[Taboada, I.; Tepe, A.] Georgia Inst Technol, Ctr Relativist Astrophys, Atlanta, GA 30332 USA.
[Fazely, A. R.; Ter-Antonyan, S.; Xu, X. W.] Southern Univ, Dept Phys, Baton Rouge, LA 70813 USA.
[Bay, R.; D'Agostino, M. V.; Filimonov, K.; Gerhardt, L.; Kiryluk, J.; Klein, S. R.; Porrata, R.; Price, P. B.; Vandenbroucke, J.; Woschnagg, K.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
[Beattie, K.; Buitink, S.; Gerhardt, L.; Goldschmidt, A.; Joseph, J. M.; Kiryluk, J.; Klein, S. R.; Matis, H. S.; Nygren, D. R.; Przybylski, G. T.; Stezelberger, T.; Stokstad, R. G.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
[Kappes, A.; Kemming, N.; Kolanoski, H.; Lehmann, R.; Waldenmaier, T.] Humboldt Univ, Inst Phys, D-12489 Berlin, Germany.
[Becker, J. K.; Dreyer, J.; Fedynitch, A.; Olivo, M.] Ruhr Univ Bochum, Fak Phys & Astron, D-44780 Bochum, Germany.
[Boeser, S.; Franckowiak, A.; Homeier, A.; Kowalski, M.; Panknin, S.] Univ Bonn, Inst Phys, D-53115 Bonn, Germany.
[Seunarine, S.] Univ W Indies, Dept Phys, BB-11000 Bridgetown, Barbados.
[Bechet, S.; Bertrand, D.; Dierckxsens, M.; Hanson, K.; Marotta, A.; Petrovic, J.; Swillens, Q.] Univ Libre Bruxelles, Fac Sci, B-1050 Brussels, Belgium.
[Bose, D.; De Clercq, C.; Depaepe, O.; Hubert, D.; Labare, M.; Rizzo, A.; Singh, K.; Strahler, E. A.; van Eijndhoven, N.] Vrije Univ Brussel, Dienst ELEM, B-1050 Brussels, Belgium.
[Ishihara, A.; Mase, K.; Ono, M.; Yoshida, S.] Chiba Univ, Dept Phys, Chiba 2638522, Japan.
[Adams, J.; Gross, A.; Han, K.; Hickford, S.] Univ Canterbury, Dept Phys & Astron, Christchurch 1, New Zealand.
[Beatty, J. J.; Davis, J. C.; Kuehn, K.; Rott, C.; Stamatikos, M.] Ohio State Univ, Dept Phys, Columbus, OH 43210 USA.
[Beatty, J. J.; Davis, J. C.; Kuehn, K.; Rott, C.; Stamatikos, M.] Ohio State Univ, Ctr Cosmol & AstroParticle Phys, Columbus, OH 43210 USA.
[Beatty, J. J.] Ohio State Univ, Dept Astron, Columbus, OH 43210 USA.
[Clevermann, F.; Koehne, J. -H.; Milke, N.; Pieloth, D.; Rhode, W.; Ruhe, T.] TU Dortmund Univ, Dept Phys, D-44221 Dortmund, Germany.
[Grant, D.] Univ Alberta, Dept Phys, Edmonton, AB T6G 2G7, Canada.
[Abdou, Y.; Carson, M.; Descamps, F.; de Vries-Uiterweerd, G.; Feusels, T.; Ryckbosch, D.; Van Overloop, A.] Univ Ghent, Dept Subatom & Radiat Phys, B-9000 Ghent, Belgium.
[Colnard, C.; Gross, A.; Odrowski, S.; Resconi, E.; Schulz, O.; Sestayo, Y.; Voge, M.; Wolf, M.] Max Planck Inst Kernphys, D-69177 Heidelberg, Germany.
[Barwick, S. W.; Nam, J. W.; Silvestri, A.; Yodh, G.] Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA.
[Cohen, S.; Demiroers, L.; Ribordy, M.] Ecole Polytech Fed Lausanne, High Energy Phys Lab, CH-1015 Lausanne, Switzerland.
[Besson, D. Z.; Kenny, P.] Univ Kansas, Dept Phys & Astron, Lawrence, KS 66045 USA.
[Gallagher, J.] Univ Wisconsin, Dept Astron, Madison, WI 53706 USA.
[Abbasi, R.; Aguilar, J. A.; Andeen, K.; Baker, M.; BenZvi, S.; Berghaus, P.; Braun, J.; Chirkin, D.; Desiati, P.; Diaz-Velez, J. C.; Dumm, J. P.; Eisch, J.; Gladstone, L.; Grullon, S.; Halzen, F.; Hanson, K.; Hill, G. C.; Hoshina, K.; Jacobsen, J.; Karle, A.; Kelley, J. L.; Krasberg, M.; Landsman, H.; Maruyama, R.; Merck, M.; Montaruli, T.; Morse, R.; O'Murchadha, A.; Rodrigues, J. P.; Santander, M.; Toscano, S.; van Santen, J.; Weaver, Ch.; Wendt, C.; Westerhoff, S.; Whitehorn, N.] Univ Wisconsin, Dept Phys, Madison, WI 53706 USA.
[Griesel, T.; Koepke, L.; Kowarik, T.; Kroll, G.; Luenemann, J.; Piegsa, A.; Rothmaier, F.; Sander, H. -G.; Schatto, K.; Wiebe, K.] Johannes Gutenberg Univ Mainz, Inst Phys, D-55099 Mainz, Germany.
[Herquet, P.; Kohnen, G.] Univ Mons, B-7000 Mons, Belgium.
[Bai, X.; Clem, J.; Evenson, P. A.; Gaisser, T. K.; Hussain, S.; Kuwabara, T.; Niessen, P.; Ruzybayev, B.; Seckel, D.; Stanev, T.; Stoyanov, S.; Tilav, S.; Xu, C.] Univ Delaware, Bartol Res Inst, Newark, DE 19716 USA.
[Bai, X.; Clem, J.; Evenson, P. A.; Gaisser, T. K.; Hussain, S.; Kuwabara, T.; Niessen, P.; Ruzybayev, B.; Seckel, D.; Stanev, T.; Stoyanov, S.; Tilav, S.; Xu, C.] Univ Delaware, Dept Phys & Astron, Newark, DE 19716 USA.
[Ahlers, M.; Sarkar, S.] Univ Oxford, Dept Phys, Oxford OX1 3NP, England.
[Abu-Zayyad, T.; Madsen, J.; Spiczak, G. M.; Tamburro, A.] Univ Wisconsin, Dept Phys, River Falls, WI 54022 USA.
[Bohm, C.; Danninger, M.; Finley, C.; Hulth, P. O.; Hultqvist, K.; Johansson, H.; Seo, S. H.; Walck, C.; Wikstrom, G.] Stockholm Univ, Oskar Klein Ctr, SE-10691 Stockholm, Sweden.
[Bohm, C.; Danninger, M.; Finley, C.; Hulth, P. O.; Hultqvist, K.; Johansson, H.; Seo, S. H.; Walck, C.; Wikstrom, G.] Stockholm Univ, Dept Phys, SE-10691 Stockholm, Sweden.
[Cowen, D. F.; Meszaros, P.; Movit, S. M.] Penn State Univ, Dept Astron & Astrophys, University Pk, PA 16802 USA.
[Cowen, D. F.; DeYoung, T.; Foerster, M. M.; Fox, B. D.; Ha, C.; Koskinen, D. J.; Lafebre, S.; Larson, M. J.; Meszaros, P.; Prikockis, M.; Rutledge, D.; Slipak, A.; Stephens, G.; Toale, P. A.] Penn State Univ, Dept Phys, University Pk, PA 16802 USA.
[Botner, O.; Engdegard, O.; Hallgren, A.; Miller, J.; Olivo, M.; Perez de los Heros, C.; Taavola, H.] Uppsala Univ, Dept Phys & Astron, S-75120 Uppsala, Sweden.
[Duvoort, M. R.] Univ Utrecht, Dept Phys & Astron, SRON, NL-3584 CC Utrecht, Netherlands.
[Auffenberg, J.; Becker, K. -H.; Gurtner, M.; Helbing, K.; Kampert, K. -H.; Karg, T.; Matusik, M.; Naumann, U.; Posselt, J.; Schultes, A.; Semburg, B.] Univ Wuppertal, Dept Phys, D-42119 Wuppertal, Germany.
[Alba, J. L. Bazo; Benabderrahmane, M. L.; Berdermann, J.; Bernardini, E.; Franke, R.; Kislat, F.; Lauer, R.; Majumdar, P.; Middell, E.; Nahnhauer, R.; Schlenstedt, S.; Spiering, C.; Tarasova, O.; Tosi, D.; Voigt, B.; Walter, M.; Wischnewski, R.] DESY, D-15735 Zeuthen, Germany.
[Montaruli, T.] Univ Bari, Dipartmento Fis, Sez INFN, I-70126 Bari, Italy.
[Stamatikos, M.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
RP Huelsnitz, W (reprint author), Univ Maryland, Dept Phys, College Pk, MD 20742 USA.
EM whuelsnitz@icecube.umd.edu
RI Beatty, James/D-9310-2011; Taavola, Henric/B-4497-2011; Aguilar Sanchez,
Juan Antonio/H-4467-2015; Maruyama, Reina/A-1064-2013; Sarkar,
Subir/G-5978-2011; Wiebusch, Christopher/G-6490-2012; Kowalski,
Marek/G-5546-2012; Tamburro, Alessio/A-5703-2013; Botner,
Olga/A-9110-2013; Hallgren, Allan/A-8963-2013; Tjus, Julia/G-8145-2012;
Auffenberg, Jan/D-3954-2014; Koskinen, David/G-3236-2014; Przybylski,
Grzegorz/F-7474-2015
OI Beatty, James/0000-0003-0481-4952; Actis, Oxana/0000-0001-8851-3983;
Ter-Antonyan, Samvel/0000-0002-5788-1369; Schukraft,
Anne/0000-0002-9112-5479; Perez de los Heros,
Carlos/0000-0002-2084-5866; Carson, Michael/0000-0003-0400-7819; Hubert,
Daan/0000-0002-4365-865X; Benabderrahmane, Mohamed
Lotfi/0000-0003-4410-5886; Taavola, Henric/0000-0002-2604-2810; Aguilar
Sanchez, Juan Antonio/0000-0003-2252-9514; Maruyama,
Reina/0000-0003-2794-512X; Sarkar, Subir/0000-0002-3542-858X; Wiebusch,
Christopher/0000-0002-6418-3008; Auffenberg, Jan/0000-0002-1185-9094;
Koskinen, David/0000-0002-0514-5917;
FU U.S. National Science Foundation; Office of Polar Programs; Physics
Division, University of Wisconsin Alumni Research Foundation; Grid
Laboratory Of Wisconsin (GLOW) grid infrastructure at the University of
Wisconsin-Madison; Open Science Grid (OSG) grid infrastructure;
U.S.Department of Energy; National Energy Research Scientific Computing
Center; Louisiana Optical Network Initiative (LONI) grid computing
resources; National Science and Engineering Research Council of Canada;
Swedish Research Council; Swedish Polar Research Secretariat; Swedish
National Infrastructure for Computing (SNIC); Knut and Alice Wallenberg
Foundation, Sweden; German Ministry for Education and Research (BMBF);
Deutsche Forschungsgemeinschaft (DFG); Research Department of Plasmas
with Complex Interactions (Bochum), Germany; Fund for Scientific
Research (FNRS-FWO); FWO; Flanders Institute to encourage scientific and
technological research in industry (IWT); Belgian Federal Science Policy
Office (Belspo); University of Oxford, United Kingdom; Marsden Fund, New
Zealand; Japan Society for Promotion of Science (JSPS); Swiss National
Science Foundation (SNSF), Switzerland; EU; Capes Foundation; Ministry
of Education of Brazil
FX We acknowledge support from the following agencies: U.S. National
Science Foundation, Office of Polar Programs, U.S. National Science
Foundation, Physics Division, University of Wisconsin Alumni Research
Foundation, the Grid Laboratory Of Wisconsin (GLOW) grid infrastructure
at the University of Wisconsin-Madison, the Open Science Grid (OSG) grid
infrastructure; U.S.Department of Energy, and National Energy Research
Scientific Computing Center, the Louisiana Optical Network Initiative
(LONI) grid computing resources; National Science and Engineering
Research Council of Canada; Swedish Research Council, Swedish Polar
Research Secretariat, Swedish National Infrastructure for Computing
(SNIC), and Knut and Alice Wallenberg Foundation, Sweden; German
Ministry for Education and Research (BMBF), Deutsche
Forschungsgemeinschaft (DFG), Research Department of Plasmas with
Complex Interactions (Bochum), Germany; Fund for Scientific Research
(FNRS-FWO), FWO Odysseus programme, Flanders Institute to encourage
scientific and technological research in industry (IWT), Belgian Federal
Science Policy Office (Belspo); University of Oxford, United Kingdom;
Marsden Fund, New Zealand; Japan Society for Promotion of Science
(JSPS); the Swiss National Science Foundation (SNSF), Switzerland. A.
Gro beta acknowledges support by the EU Marie Curie OIF Program. J.P.
Rodrigues acknowledges support by the Capes Foundation, Ministry of
Education of Brazil.
NR 45
TC 127
Z9 128
U1 2
U2 12
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1550-7998
EI 1550-2368
J9 PHYS REV D
JI Phys. Rev. D
PD JAN 5
PY 2011
VL 83
IS 1
AR 012001
DI 10.1103/PhysRevD.83.012001
PG 19
WC Astronomy & Astrophysics; Physics, Particles & Fields
SC Astronomy & Astrophysics; Physics
GA 713TA
UT WOS:000286759100001
ER
PT J
AU Feng, WX
Xiao, D
Ding, J
Yao, YG
AF Feng, Wanxiang
Xiao, Di
Ding, Jun
Yao, Yugui
TI Three-Dimensional Topological Insulators in I-III-VI2 and II-IV-V-2
Chalcopyrite Semiconductors
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID HGTE QUANTUM-WELLS; SINGLE DIRAC CONE; PHASE; SURFACE; BI2TE3
AB Using first-principles calculations within density functional theory, we investigate the band topology of ternary chalcopyrites of composition I-III-VI2 and II-IV-V-2. By exploiting adiabatic continuity of their band structures to the binary 3D-HgTe, combined with direct evaluation of the Z(2) topological invariant, we show that a large number of chalcopyrites can realize the topological insulating phase in their native states. The ability to host room-temperature ferromagnetism in the same chalcopyrite family makes them appealing candidates for novel spintronics devices.
C1 [Feng, Wanxiang; Ding, Jun; Yao, Yugui] Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Inst Phys, Beijing 100190, Peoples R China.
[Xiao, Di] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA.
RP Yao, YG (reprint author), Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Inst Phys, Beijing 100190, Peoples R China.
EM xiaod@ornl.gov; ygyao@aphy.iphy.ac.cn
RI Zhang, Jian-Min/A-7757-2012; Yao, Yugui/A-8411-2012; Xiao,
Di/B-1830-2008; Feng, Wanxiang/P-7000-2014
OI Xiao, Di/0000-0003-0165-6848; Feng, Wanxiang/0000-0001-8488-1949
FU NSF of China [10674163, 10974231]; MOST of China [2007CB925000];
Supercomputing Center of Chinese Academy of Sciences; Division of
Materials Sciences and Engineering, Office of Basic Energy Sciences,
U.S. Department of Energy
FX We acknowledges useful discussions with Jun Wen, Wenguang Zhu, and Hanno
Weitering. Y. G. Y. acknowledges support from the NSF of China
(10674163, 10974231), the MOST Project of China (2007CB925000), and
Supercomputing Center of Chinese Academy of Sciences. D. X. is supported
by the Division of Materials Sciences and Engineering, Office of Basic
Energy Sciences, U.S. Department of Energy.
NR 32
TC 86
Z9 87
U1 1
U2 37
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD JAN 5
PY 2011
VL 106
IS 1
AR 016402
DI 10.1103/PhysRevLett.106.016402
PG 4
WC Physics, Multidisciplinary
SC Physics
GA 713QA
UT WOS:000286751300011
PM 21231757
ER
PT J
AU Gandolfi, S
Carlson, J
Pieper, SC
AF Gandolfi, S.
Carlson, J.
Pieper, Steven C.
TI Cold Neutrons Trapped in External Fields
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID GROUND-STATE PROPERTIES; EQUATION-OF-STATE; SKYRME PARAMETRIZATION;
EXOTIC NUCLEI; MATTER; DROPS; SUBNUCLEAR; DENSITIES; SYSTEMS; ENERGY
AB The properties of inhomogeneous neutron matter are crucial to the physics of neutron-rich nuclei and the crust of neutron stars. Advances in computational techniques now allow us to accurately determine the binding energies and densities of many neutrons interacting via realistic microscopic interactions and confined in external fields. We perform calculations for different external fields and across several shells to place important constraints on inhomogeneous neutron matter, and hence the large isospin limit of the nuclear energy density functionals that are used to predict properties of heavy nuclei and neutron star crusts. We find important differences between microscopic calculations and current density functionals; in particular, the isovector gradient terms are significantly more repulsive than in traditional models, and the spin-orbit and pairing forces are comparatively weaker.
C1 [Gandolfi, S.; Carlson, J.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
[Pieper, Steven C.] Argonne Natl Lab, Div Phys, Argonne, IL 61801 USA.
RP Gandolfi, S (reprint author), Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
OI Gandolfi, Stefano/0000-0002-0430-9035
FU U.S. Department of Energy, Office of Nuclear Physics [DE-FC02-07ER41457,
DE-AC02-06CH11357, DE-AC52-06NA25396]; DOE INCITE
FX We thank G. F. Bertsch, A. Bulgac, S. a Beccara, J. Dobaczewski, W.
Nazarewicz, P. Maris, F. Pederiva, S. Reddy, J. Vary, and R. B. Wiringa
for valuable discussions. We are indebted to K. E. Schmidt for providing
us the AFDMC code. This work is supported by the U.S. Department of
Energy, Office of Nuclear Physics, under Contracts No. DE-FC02-07ER41457
(UNEDF SciDAC), No. DE-AC02-06CH11357, and No. DE-AC52-06NA25396.
Computer time was made available by Argonne's LCRC, the Argonne
Mathematics and Computer Science Division, Los Alamos Open
Supercomputing, the National Energy Research Scientific Computing Center
(NERSC), and by a DOE INCITE grant on the Argonne BG/P.
NR 36
TC 48
Z9 48
U1 0
U2 0
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD JAN 5
PY 2011
VL 106
IS 1
AR 012501
DI 10.1103/PhysRevLett.106.012501
PG 4
WC Physics, Multidisciplinary
SC Physics
GA 713QA
UT WOS:000286751300004
PM 21231734
ER
PT J
AU Ponomarev, AL
Sundaresan, A
Vazquez, ME
Guida, P
Kim, A
Cucinotta, FA
AF Ponomarev, Artem L.
Sundaresan, Alamelu
Vazquez, Marcelo E.
Guida, Peter
Kim, Angela
Cucinotta, Francis A.
TI A model of the effects of heavy ion radiation on human tissue
SO ADVANCES IN SPACE RESEARCH
LA English
DT Article
DE Heavy ions; Tissue irradiation; Tissue damage; Tissue toxicity; Cellular
apoptosis; Image segmentation
ID NEURONAL PROGENITOR CELLS; HIGH-LET RADIATION; DEPENDENCE; APOPTOSIS;
INDUCTION; DNA
AB In heavy ion radiotherapy and space travel humans are exposed to energetic heavy ions (C, Si, Fe and others). This type of irradiation often produces more severe biological effects per unit dose than more common X-rays. A new Monte Carlo model generates a physical space with the complex geometry of human tissue or a cell culture based model of tissue, which is affected by the passage of ionizing radiation. For irradiation, the model relies on a physical code for the ion track structure; for tissues, cellular maps are derived from two- or three-dimensional confocal microscopy images using image segmentation algorithm, which defines cells as pixilated volumes. The model is used to study tissue-specific statistics of direct ion hits and the remote ion action on cells. As an application of the technique, we considered the spatial pattern of apoptotic cells after heavy ion irradiation. The pattern of apoptosis is modeled as a stochastic process, which is defined by the action cross section taken from available experimental data. To characterize the degree of apoptosis, an autocorrelation function that describes the spatial correlation of apoptotic cells is introduced. The values of the autocorrelation function demonstrate the effect of the directionality of the radiation track on the spatial arrangements of inactivated cells in tissue. This effect is intrinsic only to high linear-energy-transfer radiation. (c) 2010 COSPAR. Published by Elsevier Ltd. All rights reserved.
C1 [Ponomarev, Artem L.] USRA, Houston, TX 77058 USA.
[Ponomarev, Artem L.; Cucinotta, Francis A.] NASA, Lyndon B Johnson Space Ctr, Human Adaptat & Countermeasures Div, Houston, TX 77058 USA.
[Sundaresan, Alamelu] Texas So Univ, Dept Biol, Houston, TX 77004 USA.
[Vazquez, Marcelo E.] Baylor Coll Med, Natl Space Biomed Res Inst, Houston, TX 77030 USA.
[Guida, Peter; Kim, Angela] Brookhaven Natl Lab, Upton, NY 11973 USA.
RP Ponomarev, AL (reprint author), USRA, 3600 Space Ctr Blvd, Houston, TX 77058 USA.
EM artem.l.ponomarev@nasa.gov
FU NASA; office of science (BER) US DOE [OE-AI03-05ER64088]; US DOE
[DE-A103-05ER64088]; NSBRI [MCC 9-58-98, RE00202]
FX Funding was through the NASA Risk Assessment Project. Funding was
through NASA under the Risk Assessment Project (AP), and by the office
of science (BER) US DOE, Interagency Agreement No. OE-AI03-05ER64088
(FC). Support was provided by the US DOE (DE-A103-05ER64088) and the
NASA Space Radiation Program Risk Assessment Project. Support was
provided by NSBRI grant MCC 9-58-98, project RE00202 (MV, PG, AK).
NR 18
TC 1
Z9 1
U1 1
U2 6
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0273-1177
EI 1879-1948
J9 ADV SPACE RES
JI Adv. Space Res.
PD JAN 4
PY 2011
VL 47
IS 1
BP 37
EP 48
DI 10.1016/j.asr.2010.08.014
PG 12
WC Astronomy & Astrophysics; Geosciences, Multidisciplinary; Meteorology &
Atmospheric Sciences
SC Astronomy & Astrophysics; Geology; Meteorology & Atmospheric Sciences
GA 718ES
UT WOS:000287104500004
ER
PT J
AU Nalwa, KS
Park, JM
Ho, KM
Chaudhary, S
AF Nalwa, Kanwar S.
Park, Joong-Mok
Ho, Kai-Ming
Chaudhary, Sumit
TI On Realizing Higher Efficiency Polymer Solar Cells Using a Textured
Substrate Platform
SO ADVANCED MATERIALS
LA English
DT Article
ID PHOTOVOLTAIC CELLS; GRATINGS; LIGHT; DIODES
AB Elastomeric electrospun construct fabrication conditions are evaluated with regard to their effect on fiber topology and biaxial mechanical response. It is determined that fiber alignment alone is insufficient to predict mechanical response. Moreover, fiber intersection density is introduced as a quantifiable structural measure that can be manipulated to achieve mechanical anisotropy similar to that of native soft tissues.
C1 [Nalwa, Kanwar S.; Chaudhary, Sumit] Iowa State Univ, Dept Elect & Comp Engn, Ames, IA 50011 USA.
[Nalwa, Kanwar S.; Chaudhary, Sumit] Iowa State Univ, Microelect Res Ctr, Ames, IA 50011 USA.
[Park, Joong-Mok; Ho, Kai-Ming] US DOE, Ames Lab, Ames, IA 50011 USA.
[Park, Joong-Mok; Ho, Kai-Ming] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA.
RP Chaudhary, S (reprint author), Iowa State Univ, Dept Elect & Comp Engn, Ames, IA 50011 USA.
EM sumitc@iastate.edu
RI Chaudhary, Sumit/A-9076-2012
FU Iowa Power Fund; Ames Laboratory; US Department of Energy by Iowa State
University [DE-AC02-07CH11358]
FX KS and SC thank Iowa Power Fund and Ames Laboratory seed funding for
financial support. JMP and KMH thank Director for Energy Research,
Office of Basic Energy Sciences. The Ames Laboratory is operated for the
US Department of Energy by Iowa State University under contract no.
DE-AC02-07CH11358.
NR 22
TC 70
Z9 71
U1 1
U2 28
PU WILEY-V C H VERLAG GMBH
PI WEINHEIM
PA BOSCHSTRASSE 12, D-69469 WEINHEIM, GERMANY
SN 0935-9648
J9 ADV MATER
JI Adv. Mater.
PD JAN 4
PY 2011
VL 23
IS 1
BP 112
EP +
DI 10.1002/adma.201002898
PG 6
WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience &
Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied;
Physics, Condensed Matter
SC Chemistry; Science & Technology - Other Topics; Materials Science;
Physics
GA 700FM
UT WOS:000285723400012
PM 21069887
ER
PT J
AU Wang, XY
Wang, YM
Aberg, D
Erhart, P
Misra, N
Noy, A
Hamza, AV
Yang, JH
AF Wang, Xianying
Wang, Yinmin
Aberg, Daniel
Erhart, Paul
Misra, Nipun
Noy, Aleksandr
Hamza, Alex V.
Yang, Junhe
TI Batteryless Chemical Detection with Semiconductor Nanowires
SO ADVANCED MATERIALS
LA English
DT Article
ID SILICON NANOWIRES; ROOM-TEMPERATURE; OXIDE NANOBELTS; ZNO; SENSORS;
NANORODS; DEVICES
AB A batteryless chemical nanosensor has been developed from either vertically (ZnO) or randomly aligned (Si) semiconductor nanowires. The nanosensor makes use of a unique molecule-surface interaction mechanism that induces an electric potential difference between two electrodes. The magnitude of the electric potential depends sensitively on the molecule type and concentration. We demonstrate the sensing ability of two different platforms using ethanol molecules. Quantum mechanical calculations suggest that the batteryless nanosensor described may be universally applicable to other semiconductor materials.
C1 [Wang, Xianying; Yang, Junhe] Univ Shanghai Sci & Technol, Sch Mat Sci & Engn, Shanghai 200093, Peoples R China.
[Wang, Yinmin; Aberg, Daniel; Erhart, Paul; Misra, Nipun; Noy, Aleksandr; Hamza, Alex V.] Lawrence Livermore Natl Lab, Nanoscale Synth & Characterizat Lab, Livermore, CA 94550 USA.
RP Wang, YM (reprint author), Lawrence Livermore Natl Lab, Nanoscale Synth & Characterizat Lab, Livermore, CA 94550 USA.
EM ymwang@llnl.gov
RI Erhart, Paul/G-6260-2011; Wang, Yinmin (Morris)/F-2249-2010;
OI Erhart, Paul/0000-0002-2516-6061; Wang, Yinmin
(Morris)/0000-0002-7161-2034; Aberg, Daniel/0000-0003-4364-9419
FU Defense Threat Reduction Agency-Joint Science and Technology Office for
Chemical and Biological Defense [BRBAA07-F-1-0066]; China 973 Program
[2010CB234609]; Shanghai NanoProject [1052nm03000]; NSFC [51072119];
Shanghai Rising Star Program [09QA1404100]; U.S. Department of Energy,
Lawrence Livermore National Laboratory [DE-AC52-07NA27344]
FX The authors have filed U.S. patent applications (61/253890, 61/255571,
61/286858) related to this research. Y.M.W and A.N are partially
supported by the Defense Threat Reduction Agency-Joint Science and
Technology Office for Chemical and Biological Defense (Grant no.
BRBAA07-F-1-0066). The work at USST is supported by China 973 Program
(2010CB234609), Shanghai NanoProject (1052nm03000), NSFC (51072119),
Shanghai Rising Star Program (09QA1404100). The authors would like to
thank Dr. L.Y. Woo for her assistance in sensing experiments, Prof. D.J.
Sirbuly for his early contributions to this project, and Dr. S.O.
Kucheyev for providing single crystal ZnO bulk samples. This work was
performed under the auspices of the U.S. Department of Energy by
Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344.
NR 31
TC 13
Z9 13
U1 5
U2 33
PU WILEY-BLACKWELL
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 0935-9648
J9 ADV MATER
JI Adv. Mater.
PD JAN 4
PY 2011
VL 23
IS 1
BP 117
EP +
DI 10.1002/adma.201003221
PG 6
WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience &
Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied;
Physics, Condensed Matter
SC Chemistry; Science & Technology - Other Topics; Materials Science;
Physics
GA 700FM
UT WOS:000285723400013
PM 21120853
ER
PT J
AU Su, Y
Brown, HM
Li, GS
Zhou, XD
Amonette, JE
Fulton, JL
Camaioni, DM
Zhang, ZC
AF Su, Yu
Brown, Heather M.
Li, Guosheng
Zhou, Xiao-dong
Amonette, James E.
Fulton, John L.
Camaioni, Donald M.
Zhang, Z. Conrad
TI Accelerated cellulose depolymerization catalyzed by paired metal
chlorides in ionic liquid solvent
SO APPLIED CATALYSIS A-GENERAL
LA English
DT Article
DE Ionic liquid; 1-Alkyl-3-methylimidazolium chloride;
1-Ethyl-3-methyl-imidazolium chloride; Cellulose; Biomass;
Depolymerization; Catalysis; Bioenergy; Hydrolysis; Glucose; Cellobiose;
Maltose; Cellulose conversion; Catalyst; Paired metal chlorides;
CuCl(2); PdCl(2)
ID ABSORPTION FINE-STRUCTURE; HYDROLYSIS; EXCHANGE
AB Efficient hydrolytic depolymerization of crystalline cellulose to sugars is a critical step and has been a major barrier for improved economics in the utilization of cellulosic biomass. A novel catalytic system involving CuCl(2) (primary metal chloride) paired with a second metal chloride, such as CrCl(2), PdCl(2), CrCl(3) or FeCl(3) in 1-ethyl-3-methylimidazolium chloride ([EMIM]Cl) ionic liquid solvent has been found to substantially accelerate the rate of cellulose depolymerization under mild conditions. These paired metal chlorides are particularly active for the hydrolytic cleavage of 1,4-glucosidic bonds when compared to the rates of acid-catalyzed hydrolysis at similar temperatures (80-120 degrees C). In contrast, single metal chlorides with the same total molar loading showed much lower activity under similar conditions. Experimental results illustrate the dramatic effect of the second metal chloride in the paired catalytic system. An array of characterization techniques, including electron paramagnetic resonance (EPR) spectroscopy, differential scanning calorimetry (DSC), X-ray absorption fine structure (XAFS) spectroscopy, and X-ray absorption near edge structure (XANES) spectroscopy, in combination with theoretical calculations at the DFT level, was used to reveal a preliminary understanding of possible mechanisms involved in the paired CuCl(2)/PdCl(2) catalytic system. We discovered that Cu(II) was reduced during the course of the reaction to Cu(I) only in the presence of a second metal chloride and a carbohydrate source such as cellulose in the ionic liquid system. Our results suggest that Cu(II) generates protons by hydrolysis of water to catalyze the depolymerization step, and serves to regenerate Pd(II) reduced to Pd(0) by side reactions. Pd(II) likely facilitates the depolymerization step by coordinating the catalytic protons, and also promotes the formation of hydroxymethylfurfural (HMF). Our results also suggest that the C2-proton of the imidazolium ring is not activated by the paired metal-chloride catalysts. (C) 2010 Elsevier B.V. All rights reserved.
C1 [Su, Yu; Brown, Heather M.; Li, Guosheng; Zhou, Xiao-dong; Amonette, James E.; Fulton, John L.; Camaioni, Donald M.; Zhang, Z. Conrad] Pacific NW Natl Lab, Inst Interfacial Catalysis, Richland, WA 99352 USA.
RP Zhang, ZC (reprint author), Pacific NW Natl Lab, Inst Interfacial Catalysis, POB 999, Richland, WA 99352 USA.
EM zczhang@yahoo.com
FU Pacific Northwest National Laboratory (PNNL); U.S. DOE
[DE-AC06-76RL01830]; U. S. Department of Energy, Office of Basic Energy
Sciences [DE-AC02-06CH11357]; US DOE-BES; NSERC
FX This work was supported by the Laboratory Directed Research and
Development Program at the Pacific Northwest National Laboratory (PNNL),
a multiprogram national laboratory operated by Battelle for the U.S. DOE
under contract no. DE-AC06-76RL01830. Part of the research described in
this paper was performed at the Environmental Molecular Sciences
Laboratory, a national scientific user facility located at PNNL. The
Advanced Photon Source is supported by the U. S. Department of Energy,
Office of Basic Energy Sciences, under Contract DE-AC02-06CH11357.
PNC-XOR is funded by its founding institutions, the US DOE-BES, and
NSERC.
NR 28
TC 41
Z9 42
U1 5
U2 61
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0926-860X
J9 APPL CATAL A-GEN
JI Appl. Catal. A-Gen.
PD JAN 4
PY 2011
VL 391
IS 1-2
SI SI
BP 436
EP 442
DI 10.1016/j.apcata.2010.09.021
PG 7
WC Chemistry, Physical; Environmental Sciences
SC Chemistry; Environmental Sciences & Ecology
GA 715BY
UT WOS:000286856600054
ER
PT J
AU Sun, Y
Shull, KR
Walko, DA
Wang, J
AF Sun, Yan
Shull, Kenneth R.
Walko, Donald A.
Wang, Jin
TI Thickness-Dependent Autophobic Dewetting of Thin Polymer Films on Coated
Substrates
SO LANGMUIR
LA English
DT Article
ID RAY STANDING WAVES; EQUILIBRIUM CONTACT ANGLES; LONG-RANGE FORCES;
LIQUID-FILMS; PATTERN-FORMATION; SPONTANEOUS RUPTURE; DYNAMICS; SURFACE;
INTERFACES; STABILITY
AB We demonstrate that the wetting behavior of a thin liquid film, poly(4-bromostyrene) (PBrS), on top of a solid substrate may be effectively controlled with the insertion of a secondary liquid film, poly(4-vinyl pyridine) (P4VP), underneath the primary film. This secondary film remains stable under all conditions, and can be viewed as an extension of the substrate itself. On the basis of results from X-ray standing waves generated via total external reflection from an X-ray mirror, time-of-flight secondary ion mass spectroscopy, optical microscopy, and atomic force microscopy, we construct the full Helmholtz free energy versus PBrS thickness curve using existing theories that account for both long- and short-range interactions. The form of the free energy curve, which contains an inflection point and an absolute minimum at a nonzero PBrS thickness, accurately reflects our observation that thick PBrS films undergo autophobic dewetting on top of the stable P4VP, while sufficiently thin PBrS films remain stable. The thickness of the autophobic wetting layer is controlled by the range of the repulsive interaction between the film and the substrate, and is found to be similar to 4 nm for the PBrS/P4VP interface.
C1 [Sun, Yan; Shull, Kenneth R.] Northwestern Univ, Dept Mat Sci & Engn, Evanston, IL 60208 USA.
[Sun, Yan; Walko, Donald A.; Wang, Jin] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA.
RP Shull, KR (reprint author), Northwestern Univ, Dept Mat Sci & Engn, Evanston, IL 60208 USA.
EM k-shull@northwestern.edu
RI Shull, Kenneth/B-7536-2009
FU NSF-NSEC; NSF-MRSEC; Keck Foundation; State of Illinois; Northwestern
University; National Science Foundation at the Materials Research Center
of Northwestern University [DMR-0520513]; U.S. Department of Energy,
Office of Science, Office of Basic Energy Sciences [DE-AC02-06CH11357];
NSF Division of Materials Research [DMR-0907384]
FX The AFM and ToF-SIMS work was performed in the NIFTI and Keck-II
facilities of NUANCE Center at Northwestern University. NUANCE Center is
supported by NSF-NSEC, NSF-MRSEC, Keck Foundation, the State of
Illinois, and Northwestern University. The optical microscopy work made
use of the Optical Microscopy and Metallography Facility supported by
the MRSEC program of the National Science Foundation (DMR-0520513) at
the Materials Research Center of Northwestern University. The TER-XSW
work was conducted at the Advanced Photon Source at Argonne National
Laboratory. Use of the APS was supported by the U.S. Department of
Energy, Office of Science, Office of Basic Energy Sciences, under
contract no. DE-AC02-06CH11357. We also acknowledge support from the NSF
Division of Materials Research, grant DMR-0907384. The authors
gratefully acknowledge the APS stall at 7-ID (D. Arms and H. Gibson) and
33-BM (E. A. Karapetrova) for their technical support and Rafael Bras
for his help in running the TER-XSW experiments.
NR 46
TC 2
Z9 2
U1 3
U2 24
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0743-7463
J9 LANGMUIR
JI Langmuir
PD JAN 4
PY 2011
VL 27
IS 1
BP 201
EP 208
DI 10.1021/la103774d
PG 8
WC Chemistry, Multidisciplinary; Chemistry, Physical; Materials Science,
Multidisciplinary
SC Chemistry; Materials Science
GA 697ZP
UT WOS:000285560400028
PM 21117671
ER
PT J
AU Klahr, BM
Martinson, ABF
Hamann, TW
AF Klahr, Benjamin M.
Martinson, Alex B. F.
Hamann, Thomas W.
TI Photoelectrochemical Investigation of Ultrathin Film Iron Oxide Solar
Cells Prepared by Atomic Layer Deposition
SO LANGMUIR
LA English
DT Article
ID HEMATITE THIN-FILMS; WATER PHOTOOXIDATION; NANOSTRUCTURED ALPHA-FE2O3;
PHOTOASSISTED ELECTROLYSIS; IRON(III) OXIDE; OXIDATION; PHOTOANODES;
FERROCENE; THICKNESS; ANODES
AB Atomic layer deposition was used to grow conformal thin films of hematite with controlled thickness on transparent conductive oxide substrates. The hematite films were incorporated as photoelectrodes in regenerative photoelectrochemical cells employing an aqueous [Fe(CN)(6)](3-/4-) electrolyte. Steady state current density versus applied potential measurements under monochromatic and simulated solar illumination were used to probe the photoelectrochemical properties of the hematite electrodes as a function of film thickness. Combining the photoelectrochemical results with careful optical measurements allowed us to determine an optimal thickness for a hematite electrode of similar to 20 nm. Mott-Schottky analysis of differential capacitance measurements indicated a depletion region of similar to 17 nm. Thus, only charge carriers generated in the depletion region were found to contribute to the photocurrent.
C1 [Klahr, Benjamin M.; Hamann, Thomas W.] Michigan State Univ, Dept Chem, E Lansing, MI 48824 USA.
[Martinson, Alex B. F.] Argonne Natl Lab, Div Mat Sci, Argonne NW Solar Energy Res ANSER Ctr, Argonne, IL 60439 USA.
RP Hamann, TW (reprint author), Michigan State Univ, Dept Chem, E Lansing, MI 48824 USA.
EM hamann@chemistry.msu.edu
OI Klahr, Benjamin/0000-0002-4966-9026; Martinson, Alex/0000-0003-3916-1672
FU U.S. Department of Energy, Office of Science, Office of Basic Energy
Sciences [DE-SC0001059]
FX T.W.H. would like to thank Michigan State University for providing a
generous start-up package in support of this work. Work by A.B.F.M. was
supported as part of the Argonne-Northwestern Solar Energy Research
(ANSER) Center, an Energy Frontier Research Center funded by the U.S.
Department of Energy, Office of Science, Office of Basic Energy
Sciences, under Award Number DE-SC0001059.
NR 52
TC 99
Z9 99
U1 8
U2 86
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0743-7463
J9 LANGMUIR
JI Langmuir
PD JAN 4
PY 2011
VL 27
IS 1
BP 461
EP 468
DI 10.1021/la103541n
PG 8
WC Chemistry, Multidisciplinary; Chemistry, Physical; Materials Science,
Multidisciplinary
SC Chemistry; Materials Science
GA 697ZP
UT WOS:000285560400062
PM 21126056
ER
PT J
AU Ravichandran, J
Siemons, W
Scullin, ML
Mukerjee, S
Huijben, M
Moore, JE
Majumdar, A
Ramesh, R
AF Ravichandran, J.
Siemons, W.
Scullin, M. L.
Mukerjee, S.
Huijben, M.
Moore, J. E.
Majumdar, A.
Ramesh, R.
TI Tuning the electronic effective mass in double-doped SrTiO3
SO PHYSICAL REVIEW B
LA English
DT Article
ID TRANSPORT-PROPERTIES; HIGH-TEMPERATURE; THIN-FILMS; SILICON; GAP
AB We elucidate the relationship between effective mass and carrier concentration in an oxide semiconductor controlled by a double-doping mechanism. In this model oxide system, Sr1-xLaxTiO3-delta, we can tune the effective mass ranging from 6 to 20m(e) as a function of filling (carrier concentration) and the scattering mechanism, which are dependent on the chosen lanthanum-and oxygen-vacancy concentrations. The effective mass values were calculated from the Boltzmann transport equation using the measured transport properties of thin films of Sr1-xLaxTiO3-delta. We show that the effective mass decreases with carrier concentration in this large-band-gap, low-mobility oxide, and this behavior is contrary to the traditional high-mobility, small-effective-mass semiconductors.
C1 [Ravichandran, J.; Majumdar, A.] Univ Calif Berkeley, Appl Sci & Technol Grad Grp, Berkeley, CA 94720 USA.
[Ravichandran, J.; Scullin, M. L.; Moore, J. E.; Majumdar, A.; Ramesh, R.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA.
[Siemons, W.; Mukerjee, S.; Huijben, M.; Moore, J. E.; Ramesh, R.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
[Scullin, M. L.; Majumdar, A.; Ramesh, R.] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA.
[Mukerjee, S.] Indian Inst Sci, Dept Phys, Bangalore 560012, Karnataka, India.
[Huijben, M.] Univ Twente, Fac Sci & Technol, NL-7500 AE Enschede, Netherlands.
[Huijben, M.] Univ Twente, MESA Inst Nanotechnol, NL-7500 AE Enschede, Netherlands.
[Majumdar, A.] Univ Calif Berkeley, Dept Mech Engn, Berkeley, CA 94720 USA.
RP Ravichandran, J (reprint author), Univ Calif Berkeley, Appl Sci & Technol Grad Grp, Berkeley, CA 94720 USA.
RI Siemons, Wolter/B-3808-2011; Ravichandran, Jayakanth/H-6329-2011; Moore,
Joel/O-4959-2016
OI Ravichandran, Jayakanth/0000-0001-5030-9143; Moore,
Joel/0000-0002-4294-5761
FU Link FoundationNetherlands Organization for Scientific Research (NWO);
Division of Materials Sciences and Engineering, Office of Basic Energy
Sciences, US Department of Energy [DE-AC02-05CH11231]
FX The authors would like to acknowledge discussions with Choongho Yu, the
assistance of Costel Rotundu and Kin Man Yu with Hall and RBS
measurements, respectively, and the UC Berkeley/LBNL thermoelectrics
group. W. S. acknowledges a Rubicon grant from The Netherlands
Organization for Scientific Research (NWO). J.R. acknowledges a Link
energy fellowship from the Link Foundation. This work was supported by
the Division of Materials Sciences and Engineering, Office of Basic
Energy Sciences, US Department of Energy under Contract No.
DE-AC02-05CH11231.
NR 29
TC 15
Z9 15
U1 6
U2 25
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD JAN 4
PY 2011
VL 83
IS 3
AR 035101
DI 10.1103/PhysRevB.83.035101
PG 5
WC Physics, Condensed Matter
SC Physics
GA 713UP
UT WOS:000286763200002
ER
PT J
AU Dean, N
Petersen, JC
Fausti, D
Tobey, RI
Kaiser, S
Gasparov, LV
Berger, H
Cavalleri, A
AF Dean, N.
Petersen, J. C.
Fausti, D.
Tobey, R. I.
Kaiser, S.
Gasparov, L. V.
Berger, H.
Cavalleri, A.
TI Polaronic Conductivity in the Photoinduced Phase of 1T-TaS2
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID TRANSITION-METAL DICHALCOGENIDES; CHARGE-DENSITY WAVES; CARRIER
DYNAMICS; DOPED 1T-TAS2; SPECTROSCOPY; PURE
AB The transient optical conductivity of photoexcited 1T-TaS2 is determined over a three-order-of-magnitude frequency range. Prompt collapse and recovery of the Mott gap is observed. However, we find important differences between this transient metallic state and that seen across the thermally driven insulator-metal transition. Suppressed low-frequency conductivity, Fano phonon line shapes, and a midinfrared absorption band point to polaronic transport. This is explained by noting that the photoinduced metallic state of 1T-TaS2 is one in which the Mott gap is melted but the lattice retains its low-temperature symmetry, a regime only accessible by photodoping.
C1 [Dean, N.; Petersen, J. C.; Fausti, D.; Tobey, R. I.; Cavalleri, A.] Univ Oxford, Dept Phys, Clarendon Lab, Oxford OX1 3PU, England.
[Petersen, J. C.; Fausti, D.; Kaiser, S.; Cavalleri, A.] Univ Hamburg, Ctr Free Elect Laser Sci, Max Planck Dept Struct Dynam, D-22607 Hamburg, Germany.
[Tobey, R. I.] Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Dept, Upton, NY 11973 USA.
[Gasparov, L. V.] Univ N Florida, Dept Chem & Phys, S Jacksonville, FL 32224 USA.
[Berger, H.] Ecole Polytech Fed Lausanne, Inst Phys Complex Matter, CH-1015 Lausanne, Switzerland.
RP Dean, N (reprint author), Univ Oxford, Dept Phys, Clarendon Lab, Parks Rd, Oxford OX1 3PU, England.
EM n.dean1@physics.ox.ac.uk; andrea.cavalleri@mpsd.cfel.de
RI Kaiser, Stefan/B-7788-2008;
OI Kaiser, Stefan/0000-0001-9862-2788; Gasparov, Lev/0000-0003-1609-3363;
Fausti, Daniele/0000-0002-2142-9741; Dean, Nicky/0000-0002-4219-8807
NR 30
TC 32
Z9 32
U1 4
U2 59
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD JAN 4
PY 2011
VL 106
IS 1
AR 016401
DI 10.1103/PhysRevLett.106.016401
PG 4
WC Physics, Multidisciplinary
SC Physics
GA 713QH
UT WOS:000286752000006
PM 21231756
ER
PT J
AU Palmer, CAJ
Dover, NP
Pogorelsky, I
Babzien, M
Dudnikova, GI
Ispiriyan, M
Polyanskiy, MN
Schreiber, J
Shkolnikov, P
Yakimenko, V
Najmudin, Z
AF Palmer, Charlotte A. J.
Dover, N. P.
Pogorelsky, I.
Babzien, M.
Dudnikova, G. I.
Ispiriyan, M.
Polyanskiy, M. N.
Schreiber, J.
Shkolnikov, P.
Yakimenko, V.
Najmudin, Z.
TI Monoenergetic Proton Beams Accelerated by a Radiation Pressure Driven
Shock
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID LASER INTERACTIONS; PLASMA; SOLIDS; ION; GENERATION; PULSES
AB We report on the acceleration of impurity-free quasimononenergetic proton beams from an initially gaseous hydrogen target driven by an intense infrared (lambda = 10 mu m) laser. The front surface of the target was observed by optical probing to be driven forward by the radiation pressure of the laser. A proton beam of similar to MeV energy was simultaneously recorded with narrow energy spread (sigma similar to 4%), low normalized emittance (similar to 8 nm), and negligible background. The scaling of proton energy with the ratio of intensity over density (I/n) confirms that the acceleration is due to the radiation pressure driven shock.
C1 [Palmer, Charlotte A. J.; Dover, N. P.; Schreiber, J.; Najmudin, Z.] Univ London Imperial Coll Sci Technol & Med, Blackett Lab, London SW7 2AZ, England.
[Pogorelsky, I.; Babzien, M.; Polyanskiy, M. N.; Yakimenko, V.] Brookhaven Natl Lab, Accelerator Test Facil, Upton, NY 11973 USA.
[Dudnikova, G. I.] Univ Maryland, College Pk, MD 20742 USA.
[Ispiriyan, M.; Shkolnikov, P.] SUNY Stony Brook, Stony Brook, NY 11794 USA.
[Schreiber, J.] Univ Munich, Fak Phys, D-85748 Garching, Germany.
[Schreiber, J.] Max Planck Inst Quantum Opt, D-85748 Garching, Germany.
RP Palmer, CAJ (reprint author), Univ London Imperial Coll Sci Technol & Med, Blackett Lab, Prince Consort Rd, London SW7 2AZ, England.
RI Polyanskiy, Mikhail/E-8406-2010;
OI Dover, Nicholas/0000-0003-0420-3940
FU Libra Basic Tech.; U.S. DOE [DE-FG02-07ER41488]
FX The work was funded in part by Libra Basic Tech. and U.S. DOE Grant No.
DE-FG02-07ER41488. We thank D. Neely, P. Foster, and J. Green for
providing spectral response of the scintillator, the OSIRIS consortium
(UCLA/IST) for use of OSIRIS, K. Kusche, and the ATF technical staff for
experimental assistance and A. E. Dangor and L. Willingale for useful
discussions.
NR 29
TC 108
Z9 110
U1 5
U2 38
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD JAN 4
PY 2011
VL 106
IS 1
AR 014801
DI 10.1103/PhysRevLett.106.014801
PG 4
WC Physics, Multidisciplinary
SC Physics
GA 713QH
UT WOS:000286752000004
PM 21231748
ER
PT J
AU Wang, FY
Adolphsen, C
Nantista, C
AF Wang, Faya
Adolphsen, Chris
Nantista, Christopher
TI Performance limiting effects in X-band accelerators
SO PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS
LA English
DT Article
AB Acceleration gradient is a critical parameter for the design of future TeV-scale linear colliders. The major obstacle to higher gradient in room-temperature accelerators is rf breakdown, which is still a very mysterious phenomenon that depends on the geometry and material of the accelerator as well as the input power and operating frequency. Pulsed heating has been associated with breakdown for many years; however, there have been no experiments that clearly separate field and heating effects on the breakdown rate. Recently, such experiments have been performed at SLAC with both standing-wave and traveling-wave structures. These experiments have demonstrated that pulsed heating is limiting the gradient. Nevertheless the X-band structures breakdown studies show damage to the iris surfaces in locations of high electric field rather than of high magnetic field after thousands of breakdowns. It is not yet clear how the relative roles of electric field, magnetic field, and heating factor into the damage caused by rf breakdown. Thus, a dual-moded cavity has been designed to better study the electric field, magnetic field, and pulsed heating effects on breakdown damage.
C1 [Wang, Faya; Adolphsen, Chris; Nantista, Christopher] Stanford Linear Accelerator Ctr, Menlo Pk, CA 94025 USA.
RP Wang, FY (reprint author), Stanford Linear Accelerator Ctr, 2575 Sand Hill Rd, Menlo Pk, CA 94025 USA.
NR 17
TC 18
Z9 17
U1 0
U2 3
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-4402
J9 PHYS REV SPEC TOP-AC
JI Phys. Rev. Spec. Top.-Accel. Beams
PD JAN 4
PY 2011
VL 14
IS 1
AR 010401
DI 10.1103/PhysRevSTAB.14.010401
PG 5
WC Physics, Nuclear; Physics, Particles & Fields
SC Physics
GA 702XS
UT WOS:000285929800001
ER
PT J
AU Zhang, JL
Zhang, SJ
Weng, HM
Zhang, W
Yang, LX
Liu, QQ
Feng, SM
Wang, XC
Yu, RC
Cao, LZ
Wang, L
Yang, WG
Liu, HZ
Zhao, WY
Zhang, SC
Dai, X
Fang, Z
Jin, CQ
AF Zhang, J. L.
Zhang, S. J.
Weng, H. M.
Zhang, W.
Yang, L. X.
Liu, Q. Q.
Feng, S. M.
Wang, X. C.
Yu, R. C.
Cao, L. Z.
Wang, L.
Yang, W. G.
Liu, H. Z.
Zhao, W. Y.
Zhang, S. C.
Dai, X.
Fang, Z.
Jin, C. Q.
TI Pressure-induced superconductivity in topological parent compound Bi2Te3
SO PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF
AMERICA
LA English
DT Article
DE high-pressure effects; pressure-tuned conductivity; topological
superconductors
ID SINGLE DIRAC CONE; QUANTUM COMPUTATION; INSULATOR; SURFACE; ANYONS; SPIN
AB We report a successful observation of pressure-induced superconductivity in a topological compound Bi2Te3 with T-c of similar to 3 K between 3 to 6 GPa. The combined high-pressure structure investigations with synchrotron radiation indicated that the superconductivity occurred at the ambient phase without crystal structure phase transition. The Hall effects measurements indicated the hole-type carrier in the pressure-induced superconducting Bi2Te3 single crystal. Consequently, the first-principles calculations based on the structural data obtained by the Rietveld refinement of X-ray diffraction patterns at high pressure showed that the electronic structure under pressure remained topologically nontrivial. The results suggested that topological superconductivity can be realized in Bi2Te3 due to the proximity effect between superconducting bulk states and Dirac-type surface states. We also discuss the possibility that the bulk state could be a topological superconductor.
C1 [Zhang, J. L.; Zhang, S. J.; Weng, H. M.; Zhang, W.; Yang, L. X.; Liu, Q. Q.; Feng, S. M.; Wang, X. C.; Yu, R. C.; Dai, X.; Fang, Z.; Jin, C. Q.] Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China.
[Zhang, J. L.; Zhang, S. J.; Weng, H. M.; Zhang, W.; Yang, L. X.; Liu, Q. Q.; Feng, S. M.; Wang, X. C.; Yu, R. C.; Dai, X.; Fang, Z.; Jin, C. Q.] Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China.
[Zhang, J. L.; Cao, L. Z.] Univ Sci & Technol China, Dept Phys, Hefei 230026, Peoples R China.
[Wang, L.; Yang, W. G.] Carnegie Inst Sci, Adv Photon Source, Geophys Lab, HPsync, Argonne, IL 60439 USA.
[Liu, H. Z.] Harbin Inst Technol, Nat Sci Res Ctr, Harbin 150080, Peoples R China.
[Zhao, W. Y.] Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China.
[Zhang, S. C.] Stanford Univ, Dept Phys, Stanford, CA 94305 USA.
[Zhang, S. C.] Tsinghua Univ, Ctr Adv Study, Beijing 100084, Peoples R China.
RP Fang, Z (reprint author), Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China.
EM zfang@iphy.ac.cn; jin@iphy.ac.cn
RI Liu, Haozhe/E-6169-2011; Weng, Hongming/F-2948-2011; Zhang,
Shou-Cheng/B-2794-2010; Yang, Wenge/H-2740-2012; WANG, LIN/G-7884-2012;
Fang, Zhong/D-4132-2009
OI Weng, Hongming/0000-0001-8021-9413;
FU Natural Science Foundation (NSF); Ministry of Science and Technology
(MOST) of China [10820101049, 2007CB925000, 2010CB923000]; International
Science and Technology Cooperation Program of China; Department of
Energy, Office of Basic Energy Sciences (DOE-BES); Department of Energy,
National Nuclear Security Administration (DOE-NNSA); NSF [DMR-0904264]
FX We thank the Natural Science Foundation (NSF) and Ministry of Science
and Technology (MOST) of China through the research projects
(10820101049, 2007CB925000, and 2010CB923000), and the International
Science and Technology Cooperation Program of China. HPsync is supported
by the Department of Energy, Office of Basic Energy Sciences (DOE-BES),
Department of Energy, National Nuclear Security Administration
(DOE-NNSA), and NSF. S.C.Z. is supported by the NSF under Grant
DMR-0904264.
NR 35
TC 110
Z9 110
U1 14
U2 93
PU NATL ACAD SCIENCES
PI WASHINGTON
PA 2101 CONSTITUTION AVE NW, WASHINGTON, DC 20418 USA
SN 0027-8424
J9 P NATL ACAD SCI USA
JI Proc. Natl. Acad. Sci. U. S. A.
PD JAN 4
PY 2011
VL 108
IS 1
BP 24
EP 28
DI 10.1073/pnas.1014085108
PG 5
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 702SG
UT WOS:000285915000009
PM 21173267
ER
PT J
AU Brown, JH
Kumar, VSS
O'Neall-Hennessey, E
Reshetnikova, L
Robinson, H
Nguyen-McCarty, M
Szent-Gyorgyi, AG
Cohen, C
AF Brown, Jerry H.
Kumar, V. S. Senthil
O'Neall-Hennessey, Elizabeth
Reshetnikova, Ludmila
Robinson, Howard
Nguyen-McCarty, Michelle
Szent-Gyoergyi, Andrew G.
Cohen, Carolyn
TI Visualizing key hinges and a potential major source of compliance in the
lever arm of myosin
SO PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF
AMERICA
LA English
DT Article
DE protein crystal structure; light chain binding domain; glycine;
regulation
ID X-RAY-DIFFRACTION; REGULATORY LIGHT-CHAINS; MUSCLE HEAVY-MEROMYOSIN;
SCALLOP MYOSIN; SMOOTH-MUSCLE; CONTRACTION; BINDING; MOTOR; ACTIN;
MECHANISM
AB We have determined the 2.3-angstrom-resolution crystal structure of a myosin light chain domain, corresponding to one type found in sea scallop catch ("smooth") muscle. This structure reveals hinges that may function in the "on" and "off" states of myosin. The molecule adopts two different conformations about the heavy chain "hook" and regulatory light chain (RLC) helix D. This conformational change results in extended and compressed forms of the lever arm whose lengths differ by 10 angstrom. The heavy chain hook and RLC helix D hinges could thus serve as a potential major and localized source of cross-bridge compliance during the contractile cycle. In addition, in one of the molecules of the crystal, part of the RLC N-terminal extension is seen in atomic detail and forms a one-turn alpha-helix that interacts with RLC helix D. This extension, whose sequence is highly variable in different myosins, may thus modulate the flexibility of the lever arm. Moreover, the relative proximity of the phosphorylation site to the helix D hinge suggests a potential role for conformational changes about this hinge in the transition between the on and off states of regulated myosins.
C1 [Brown, Jerry H.; Kumar, V. S. Senthil; O'Neall-Hennessey, Elizabeth; Reshetnikova, Ludmila; Nguyen-McCarty, Michelle; Szent-Gyoergyi, Andrew G.; Cohen, Carolyn] Brandeis Univ, Rosenstiel Basic Med Sci Res Ctr, Waltham, MA 02454 USA.
[Robinson, Howard] Brookhaven Natl Lab, Dept Biol, Upton, NY 11973 USA.
RP Cohen, C (reprint author), Brandeis Univ, Rosenstiel Basic Med Sci Res Ctr, Waltham, MA 02454 USA.
EM ccohen@brandeis.edu
FU National Institutes of Health [AR017346]
FX We are grateful to Cynthia Perreault-Micale; without her excellent
sequencing work, along with expression, purification, and long-term
storage of large quantities of this most interesting RLC, this project
would not have been possible. We also thank the staff of the Brookhaven
National Laboratory for assistance with data collection, and Hugh
Huxley, Kathleen Trybus, and Daniel Himmel for a critical reading of the
manuscript. This work has been supported by National Institutes of
Health Grant AR017346 (to C.C.).
NR 52
TC 12
Z9 12
U1 0
U2 6
PU NATL ACAD SCIENCES
PI WASHINGTON
PA 2101 CONSTITUTION AVE NW, WASHINGTON, DC 20418 USA
SN 0027-8424
J9 P NATL ACAD SCI USA
JI Proc. Natl. Acad. Sci. U. S. A.
PD JAN 4
PY 2011
VL 108
IS 1
BP 114
EP 119
DI 10.1073/pnas.1016288107
PG 6
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 702SG
UT WOS:000285915000025
PM 21149681
ER
PT J
AU Perz-Edwards, RJ
Irving, TC
Baumann, BAJ
Gore, D
Hutchinson, DC
Krzic, U
Porter, RL
Ward, AB
Reedy, MK
AF Perz-Edwards, Robert J.
Irving, Thomas C.
Baumann, Bruce A. J.
Gore, David
Hutchinson, Daniel C.
Krzic, Uros
Porter, Rebecca L.
Ward, Andrew B.
Reedy, Michael K.
TI X-ray diffraction evidence for myosin-troponin connections and
tropomyosin movement during stretch activation of insect flight muscle
SO PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF
AMERICA
LA English
DT Article
ID STRUCTURAL-CHANGES; CROSS-BRIDGES; OSCILLATORY CONTRACTION;
CONTAINING-FILAMENTS; STRIATED-MUSCLE; ACTIN; LATTICE; MECHANISM;
BINDING; EXTENSIBILITY
AB Stretch activation is important in the mechanical properties of vertebrate cardiac muscle and essential to the flight muscles of most insects. Despite decades of investigation, the underlying molecular mechanism of stretch activation is unknown. We investigated the role of recently observed connections between myosin and troponin, called "troponin bridges," by analyzing real-time X-ray diffraction "movies" from sinusoidally stretch-activated Lethocerus muscles. Observed changes in X-ray reflections arising from myosin heads, actin filaments, troponin, and tropomyosin were consistent with the hypothesis that troponin bridges are the key agent of mechanical signal transduction. The time-resolved sequence of molecular changes suggests a mechanism for stretch activation, in which troponin bridges mechanically tug tropomyosin aside to relieve tropomyosin's steric blocking of myosin-actin binding. This enables subsequent force production, with cross-bridge targeting further enhanced by stretch-induced lattice compression and thick-filament twisting. Similar linkages may operate in other muscle systems, such as mammalian cardiac muscle, where stretch activation is thought to aid in cardiac ejection.
C1 [Perz-Edwards, Robert J.; Hutchinson, Daniel C.; Porter, Rebecca L.; Reedy, Michael K.] Duke Univ, Dept Cell Biol, Durham, NC 27710 USA.
[Irving, Thomas C.; Gore, David] IIT, Dept Biol Chem & Phys Sci, Chicago, IL 60616 USA.
[Irving, Thomas C.; Gore, David] IIT, Biophys Collaborat Access Team, Chicago, IL 60616 USA.
[Baumann, Bruce A. J.] Florida State Univ, Inst Mol Biophys, Tallahassee, FL 32306 USA.
[Krzic, Uros] European Mol Biol Lab, Cell Biol & Biophys Unit, D-69117 Heidelberg, Germany.
[Ward, Andrew B.] Scripps Res Inst, Dept Mol Biol, La Jolla, CA 92037 USA.
RP Perz-Edwards, RJ (reprint author), Duke Univ, Dept Cell Biol, Box 3011, Durham, NC 27710 USA.
EM rjpe@cellbio.duke.edu
RI ID, BioCAT/D-2459-2012; Ward, Andrew/F-9203-2014;
OI Ward, Andrew/0000-0001-7153-3769; Perz-Edwards,
Robert/0000-0003-4446-1194
FU National Institutes of Health (NIH) [AR-14317, GM-30598]; US Department
of Energy [W-31-109-ENG-38]; NIH [RR-08630]
FX Thanks to C. Lucaveche, S. Hester, T Bekyarova, and R.T. Tregear. Muscle
data acquisition modules were written by Katya Prince (Prince Consulting
LLC, Durham, NC). This research was supported by National Institutes of
Health (NIH) Grants AR-14317 (to M.K.R.) and GM-30598 (to B.A.B.). The
Advanced Photon Source was supported by the US Department of Energy
Contract W-31-109-ENG-38. Biophysics Collaborative Access Team is an
NIH-supported Research Center RR-08630.
NR 50
TC 35
Z9 35
U1 1
U2 7
PU NATL ACAD SCIENCES
PI WASHINGTON
PA 2101 CONSTITUTION AVE NW, WASHINGTON, DC 20418 USA
SN 0027-8424
J9 P NATL ACAD SCI USA
JI Proc. Natl. Acad. Sci. U. S. A.
PD JAN 4
PY 2011
VL 108
IS 1
BP 120
EP 125
DI 10.1073/pnas.1014599107
PG 6
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 702SG
UT WOS:000285915000026
PM 21148419
ER
PT J
AU Beaulieu, JJ
Tank, JL
Hamilton, SK
Wollheim, WM
Hall, RO
Mulholland, PJ
Peterson, BJ
Ashkenas, LR
Cooper, LW
Dahm, CN
Dodds, WK
Grimm, NB
Johnson, SL
McDowell, WH
Poole, GC
Valett, HM
Arango, CP
Bernot, MJ
Burgin, AJ
Crenshaw, CL
Helton, AM
Johnson, LT
O'Brien, JM
Potter, JD
Sheibley, RW
Sobota, DJ
Thomas, SM
AF Beaulieu, Jake J.
Tank, Jennifer L.
Hamilton, Stephen K.
Wollheim, Wilfred M.
Hall, Robert O., Jr.
Mulholland, Patrick J.
Peterson, Bruce J.
Ashkenas, Linda R.
Cooper, Lee W.
Dahm, Clifford N.
Dodds, Walter K.
Grimm, Nancy B.
Johnson, Sherri L.
McDowell, William H.
Poole, Geoffrey C.
Valett, H. Maurice
Arango, Clay P.
Bernot, Melody J.
Burgin, Amy J.
Crenshaw, Chelsea L.
Helton, Ashley M.
Johnson, Laura T.
O'Brien, Jonathan M.
Potter, Jody D.
Sheibley, Richard W.
Sobota, Daniel J.
Thomas, Suzanne M.
TI Nitrous oxide emission from denitrification in stream and river networks
SO PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF
AMERICA
LA English
DT Article
ID HEADWATER STREAMS; NITRATE REMOVAL; FRESH-WATER; N2O; ECOSYSTEMS; SOILS;
ABUNDANCE; OXYGEN; RATES; CYCLE
AB Nitrous oxide (N2O) is a potent greenhouse gas that contributes to climate change and stratospheric ozone destruction. Anthropogenic nitrogen (N) loading to river networks is a potentially important source of N2O via microbial denitrification that converts N to N2O and dinitrogen (N-2). The fraction of denitrified N that escapes as N2O rather than N-2 (i.e., the N2O yield) is an important determinant of how much N2O is produced by river networks, but little is known about the N2O yield in flowing waters. Here, we present the results of whole-stream N-15-tracer additions conducted in 72 headwater streams draining multiple land-use types across the United States. We found that stream denitrification produces N2O at rates that increase with stream water nitrate (NO3-) concentrations, but that <1% of denitrified N is converted to N2O. Unlike some previous studies, we found no relationship between the N2O yield and stream water NO3-. We suggest that increased stream NO3- loading stimulates denitrification and concomitant N2O production, but does not increase the N2O yield. In our study, most streams were sources of N2O to the atmosphere and the highest emission rates were observed in streams draining urban basins. Using a global river network model, we estimate that microbial N transformations (e. g., denitrification and nitrification) convert at least 0.68 Tg.y(-1) of anthropogenic N inputs to N2O in river networks, equivalent to 10% of the global anthropogenic N2O emission rate. This estimate of stream and river N2O emissions is three times greater than estimated by the Intergovernmental Panel on Climate Change.
C1 [Beaulieu, Jake J.; Tank, Jennifer L.] Univ Notre Dame, Dept Biol Sci, Notre Dame, IN 46556 USA.
[Hamilton, Stephen K.] Michigan State Univ, Kellogg Biol Stn, Hickory Corners, MI 49060 USA.
[Wollheim, Wilfred M.] Univ New Hampshire, Inst Study Earth Oceans & Space, Complex Syst Res Ctr, Durham, NH 03824 USA.
[Wollheim, Wilfred M.; McDowell, William H.; Potter, Jody D.] Univ New Hampshire, Dept Nat Resources & Environm, Durham, NH 03824 USA.
[Hall, Robert O., Jr.] Univ Wyoming, Dept Zool & Physiol, Laramie, WY 82071 USA.
[Mulholland, Patrick J.] Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA.
[Mulholland, Patrick J.] Univ Tennessee, Dept Ecol & Evolutionary Biol, Knoxville, TN 37996 USA.
[Peterson, Bruce J.; Thomas, Suzanne M.] Marine Biol Lab, Ctr Ecosyst, Woods Hole, MA 02543 USA.
[Ashkenas, Linda R.] Oregon State Univ, Dept Fisheries & Wildlife, Corvallis, OR 97331 USA.
[Cooper, Lee W.] Univ Maryland, Ctr Environm Sci, Chesapeake Biol Lab, Solomons, MD 20688 USA.
[Dahm, Clifford N.; Crenshaw, Chelsea L.] Univ New Mexico, Dept Biol, Albuquerque, NM 87131 USA.
[Dodds, Walter K.] Kansas State Univ, Div Biol, Manhattan, KS 66506 USA.
[Grimm, Nancy B.; Sheibley, Richard W.] Arizona State Univ, Sch Life Sci, Tempe, AZ 85287 USA.
[Johnson, Sherri L.] US Forest Serv, Pacific NW Res Stn, Corvallis, OR 97331 USA.
[Poole, Geoffrey C.] Montana State Univ, Dept Land Resources & Environm Sci, Bozeman, MT 59717 USA.
[Valett, H. Maurice] Virginia Polytech Inst & State Univ, Dept Biol Sci, Blacksburg, VA 24061 USA.
[Arango, Clay P.] Cent Washington Univ, Dept Biol Sci, Ellensburg, WA 98926 USA.
[Bernot, Melody J.] Ball State Univ, Dept Biol, Muncie, IN 47306 USA.
[Burgin, Amy J.] Wright State Univ, Dept Earth & Environm Sci, Dayton, OH 45435 USA.
[Helton, Ashley M.] Univ Georgia, Odum Sch Ecol, Athens, GA 30602 USA.
[Johnson, Laura T.] Indiana Univ, Sch Publ & Environm Affairs, Bloomington, IN 47405 USA.
[O'Brien, Jonathan M.] Univ Canterbury, Sch Biol Sci, Christchurch 8014, New Zealand.
[Sobota, Daniel J.] Washington State Univ, Sch Earth & Environm Sci, Vancouver, WA 98686 USA.
RP Beaulieu, JJ (reprint author), US EPA, Cincinnati, OH 45268 USA.
EM beaulieu.jake@epa.gov
RI Mulholland, Patrick/C-3142-2012; Cooper, Lee/E-5251-2012; O'Brien,
Jonathan/G-6786-2012; Grimm, Nancy/D-2840-2009; Burgin, Amy/G-7444-2014;
Arango Lopez, Celso/H-6433-2015; McDowell, William/E-9767-2010; Burgin,
Amy/C-1528-2010;
OI Poole, Geoffrey/0000-0002-8458-0203; Cooper, Lee/0000-0001-7734-8388;
Grimm, Nancy/0000-0001-9374-660X; Burgin, Amy/0000-0001-8489-4002;
Arango Lopez, Celso/0000-0003-3382-4754; McDowell,
William/0000-0002-8739-9047; Burgin, Amy/0000-0001-8489-4002; Sheibley,
Richard/0000-0003-1627-8536
FU National Science Foundation [DEB-0111410]; National Science Foundation's
Long Term Ecological Research (NSF-LTER) network
FX We are grateful to N.E. Ostrom for assistance with stable isotope
measurements of N2 and N2O and G. P. Robertson for
comments on the manuscript. We thank the US Forest Service, National
Park Service, and many private landowners for permission to conduct
experiments on their lands. We also acknowledge the many workers who
helped with the Lotic Intersite Nitrogen experiments. Funding for this
research was provided by the National Science Foundation (DEB-0111410).
The National Science Foundation's Long Term Ecological Research
(NSF-LTER) network hosted many of the study sites included in this
research and partially supported several of the authors during the
project. We specifically acknowledge Andrews, Central Arizona-Phoenix,
Coweeta, Kellogg Biological Station, Konza, Luquillo, Plum Island, and
Sevilleta NSF-LTERs for support.
NR 41
TC 141
Z9 158
U1 13
U2 186
PU NATL ACAD SCIENCES
PI WASHINGTON
PA 2101 CONSTITUTION AVE NW, WASHINGTON, DC 20418 USA
SN 0027-8424
J9 P NATL ACAD SCI USA
JI Proc. Natl. Acad. Sci. U. S. A.
PD JAN 4
PY 2011
VL 108
IS 1
BP 214
EP 219
DI 10.1073/pnas.1011464108
PG 6
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 702SG
UT WOS:000285915000042
PM 21173258
ER
PT J
AU Brown, D
Cabe, J
Stout, T
AF Brown, Daryl
Cabe, Jim
Stout, Tyson
TI National lab uses OGJ data to develop cost equations
SO OIL & GAS JOURNAL
LA English
DT Article
C1 [Brown, Daryl; Cabe, Jim; Stout, Tyson] Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Brown, D (reprint author), Pacific NW Natl Lab, Richland, WA 99352 USA.
EM daryl.brown@pnl.gov; james.cabe@pnl.gov; tyson.stout@pnl.gov
NR 0
TC 2
Z9 3
U1 0
U2 0
PU PENNWELL PUBL CO ENERGY GROUP
PI TULSA
PA 1421 S SHERIDAN RD PO BOX 1260, TULSA, OK 74112 USA
SN 0030-1388
J9 OIL GAS J
JI Oil Gas J.
PD JAN 3
PY 2011
VL 109
IS 1
BP 108
EP 111
PG 4
WC Energy & Fuels; Engineering, Petroleum
SC Energy & Fuels; Engineering
GA 705TE
UT WOS:000286160000027
ER
PT J
AU Choi, EM
Patnaik, S
Weal, E
Sahonta, SL
Wang, H
Bi, Z
Xiong, J
Blamire, MG
Jia, QX
MacManus-Driscoll, JL
AF Choi, E. -M.
Patnaik, S.
Weal, E.
Sahonta, S. -L.
Wang, H.
Bi, Z.
Xiong, J.
Blamire, M. G.
Jia, Q. X.
MacManus-Driscoll, J. L.
TI Strong room temperature magnetism in highly resistive strained thin
films of BiFe0.5Mn0.5O3
SO APPLIED PHYSICS LETTERS
LA English
DT Article
ID BIMNO3; PEROVSKITE; BIFEO3
AB We report highly resistive strongly ferromagnetic strained thin (similar to 30 nm) films of BiFe0.5Mn0.5O3 (BFMO) grown on (001) SrTiO3 substrates using pulsed laser deposition. The films are tetragonal with high epitaxial quality and phase-purity. The magnetic moment and coercivity values at room temperature are 90 emu/cc (0.58 mu(B)/B-site ion) at H = 3 kOe and 274 Oe, respectively. The magnetic transition temperature is strongly enhanced up to similar to 600 K, which is similar to 500 K higher than for pure bulk BiMnO3. Strained BFMO is a potential room temperature spin filter material for magnetic tunnel devices. (c) 2011 American Institute of Physics. [doi: 10.1063/1.3540683]
C1 [Choi, E. -M.; Patnaik, S.; Weal, E.; Sahonta, S. -L.; Blamire, M. G.; MacManus-Driscoll, J. L.] Univ Cambridge, Dept Mat Sci, Cambridge CB2 3QZ, England.
[Wang, H.; Bi, Z.] Texas A&M Univ, Dept Elect & Comp Engn, College Stn, TX 77843 USA.
[Xiong, J.; Jia, Q. X.; MacManus-Driscoll, J. L.] Los Alamos Natl Lab, Ctr Integrated Nanotechnol, Los Alamos, NM 87545 USA.
RP Choi, EM (reprint author), Univ Cambridge, Dept Mat Sci, Pembroke St, Cambridge CB2 3QZ, England.
EM jld35@cam.ac.uk
RI Jia, Q. X./C-5194-2008; Wang, Haiyan/P-3550-2014
OI Wang, Haiyan/0000-0002-7397-1209
FU EPSRC [EP/E058078]; ERC [ERC-2009-AdG 247276 NOVOX]; Commonwealth
scholarship fund; Korean Government [NRF-2009-352-C0025]; U.S. National
Science Foundation [NSF-0709831, 1007969]; U.S. Department of Energy;
Center for Integrated Nanotechnologies (CINT)
FX J.L.M.-D. would like to thank EPSRC (Grant No. EP/E058078) and the ERC
(Grant No. ERC-2009-AdG 247276 NOVOX) for supporting this work. S.P.
acknowledges the Commonwealth scholarship fund. E.-M.C. was supported by
the National Research Foundation of Korea Grant funded by the Korean
Government (Grant No. NRF-2009-352-C0025). H.W. would like to thank the
U.S. National Science Foundation (Ceramic Program, Grant Nos.
NSF-0709831 and 1007969). Q.X.J. and J.L.M.-D. acknowledge the support
of the U.S. Department of Energy through the LANL/LDRD program and the
Center for Integrated Nanotechnologies (CINT) for this work.
NR 23
TC 21
Z9 23
U1 6
U2 43
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0003-6951
J9 APPL PHYS LETT
JI Appl. Phys. Lett.
PD JAN 3
PY 2011
VL 98
IS 1
AR 012509
DI 10.1063/1.3540683
PG 3
WC Physics, Applied
SC Physics
GA 703VQ
UT WOS:000286009800052
ER
PT J
AU Fang, H
Madsen, M
Carraro, C
Takei, K
Kim, HS
Plis, E
Chen, SY
Krishna, S
Chueh, YL
Maboudian, R
Javey, A
AF Fang, Hui
Madsen, Morten
Carraro, Carlo
Takei, Kuniharu
Kim, Ha Sul
Plis, Elena
Chen, Szu-Ying
Krishna, Sanjay
Chueh, Yu-Lun
Maboudian, Roya
Javey, Ali
TI Strain engineering of epitaxially transferred, ultrathin layers of III-V
semiconductor on insulator
SO APPLIED PHYSICS LETTERS
LA English
DT Article
ID RAMAN-SCATTERING; INAS
AB Strain state of ultrathin InAs-on-insulator layers obtained from an epitaxial transfer process is studied. The as-grown InAs epilayer (10-20 nm thick) on the GaSb/AlGaSb source wafer has the expected similar to 0.62% tensile strain. The strain is found to fully release during the epitaxial transfer of the InAs layer onto a Si/SiO(2) substrate. In order to engineer the strain of the transferred InAs layers, a ZrO(x) cap was used during the transfer process to effectively preserve the strain. The work presents an important advance toward the control of materials properties of III-V on insulator layers. (C) 2011 American Institute of Physics. [doi:10.1063/1.3537963]
C1 [Fang, Hui; Madsen, Morten; Takei, Kuniharu; Kim, Ha Sul; Javey, Ali] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA.
[Fang, Hui; Madsen, Morten; Carraro, Carlo; Takei, Kuniharu; Kim, Ha Sul; Maboudian, Roya; Javey, Ali] Univ Calif Berkeley, Berkeley Sensor & Actuator Ctr, Berkeley, CA 94720 USA.
[Plis, Elena; Krishna, Sanjay] Univ New Mexico, Dept Elect & Comp Engn, Albuquerque, NM 87106 USA.
[Plis, Elena; Krishna, Sanjay] Univ New Mexico, Ctr High Technol Mat, Albuquerque, NM 87106 USA.
[Chen, Szu-Ying; Chueh, Yu-Lun] Natl Tsing Hua Univ, Hsinchu 30013, Taiwan.
RP Fang, H (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA.
EM ajavey@berkeley.edu
RI Krishna, Sanjay /C-5766-2009; Madsen, Morten/K-8597-2012; Fang,
Hui/I-8973-2014; Javey, Ali/B-4818-2013; Chueh, Yu-Lun/E-2053-2013;
OI Fang, Hui/0000-0002-4651-9786; Chueh, Yu-Lun/0000-0002-0155-9987;
Madsen, Morten/0000-0001-6503-0479
FU MARCO/MSD Focus Center; NSF Energy Efficient Electronics Science Center,
NSF [DMR-0804646]; AFOSR [FA9550-09-1-0202]; Nation Science Council,
Taiwan NSC [99-2628-E-007-006]; LDRD from LBNL; Sloan research
fellowship; Sunchon National University; Danish Research Council for
Technology and Production Sciences
FX This work was financially supported by MARCO/MSD Focus Center, NSF
Energy Efficient Electronics Science Center, NSF (Grant No.
DMR-0804646), AFOSR (Grant No. FA9550-09-1-0202, and Nation Science
Council, Taiwan NSC Grant No. 99-2628-E-007-006). The materials
characterization of this work was funded by a LDRD from LBNL. A.J.
acknowledges a Sloan research fellowship, and support from the World
Class University program at Sunchon National University. M.M.
acknowledges a postdoctoral fellowship from the Danish Research Council
for Technology and Production Sciences.
NR 16
TC 17
Z9 17
U1 3
U2 20
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0003-6951
J9 APPL PHYS LETT
JI Appl. Phys. Lett.
PD JAN 3
PY 2011
VL 98
IS 1
AR 012111
DI 10.1063/1.3537963
PG 3
WC Physics, Applied
SC Physics
GA 703VQ
UT WOS:000286009800040
ER
PT J
AU Lam, NQ
AF Lam, Nghi Q.
TI Untitled
SO APPLIED PHYSICS LETTERS
LA English
DT Editorial Material
C1 Argonne Natl Lab, Editorial Off, Argonne, IL 60439 USA.
RP Lam, NQ (reprint author), Argonne Natl Lab, Editorial Off, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM apl@anl.gov
NR 0
TC 0
Z9 0
U1 0
U2 3
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0003-6951
J9 APPL PHYS LETT
JI Appl. Phys. Lett.
PD JAN 3
PY 2011
VL 98
IS 1
AR 010401
DI 10.1063/1.3533024
PG 1
WC Physics, Applied
SC Physics
GA 703VQ
UT WOS:000286009800001
ER
PT J
AU Winkler, TE
Stone, PR
Li, TA
Yu, KM
Bonanni, A
Dubon, OD
AF Winkler, T. E.
Stone, P. R.
Li, Tian
Yu, K. M.
Bonanni, A.
Dubon, O. D.
TI Compensation-dependence of magnetic and electrical properties in
Ga1-xMnxP
SO APPLIED PHYSICS LETTERS
LA English
DT Article
ID V FERROMAGNETIC SEMICONDUCTORS
AB We demonstrate the control of the hole concentration in Ga1-xMnxP over a wide range by introducing compensating vacancies. The resulting evolution of the Curie temperature from 51 to 7.5 K is remarkably similar to that observed in Ga1-xMnxAs despite the dramatically different character of hole transport between the two material systems. The highly localized nature of holes in Ga1-xMnxP is reflected in the accompanying increase in resistivity by many orders of magnitude. Based on variable-temperature resistivity data we present a general picture for hole conduction in which variable-range hopping is the dominant transport mechanism in the presence of compensation. (C) 2011 American Institute of Physics. [doi:10.1063/1.3535957]
C1 [Winkler, T. E.; Stone, P. R.; Yu, K. M.; Dubon, O. D.] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA.
[Winkler, T. E.; Stone, P. R.; Yu, K. M.; Dubon, O. D.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA.
[Winkler, T. E.; Li, Tian; Bonanni, A.] Johannes Kepler Univ Linz, Inst Halbleiter & Festkorperphys, A-4040 Linz, Austria.
RP Winkler, TE (reprint author), Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA.
EM alberta.bonanni@jku.at; oddubon@berkeley.edu
RI Yu, Kin Man/J-1399-2012; Bonanni, Alberta/C-1411-2008; Li,
Tian/N-7356-2013; Winkler, Thomas/H-3369-2011
OI Yu, Kin Man/0000-0003-1350-9642; Bonanni, Alberta/0000-0003-4425-0346;
Winkler, Thomas/0000-0002-2331-4833
FU Office of Science, Office of Basic Energy Sciences, Division of
Materials Sciences and Engineering, of the U.S. Department of Energy
[DE-AC02-05CH11231]; European Research Council; Austrian Fonds zur
Forderung der wissenschaftlichen Forschung (FWF) [P22477, P20065,
N107-NAN]; NSF; Marshall Plan Scholarship
FX The work at Berkeley (sample synthesis, electrical and magnetic
characterization, ion beam analysis) was supported by the Director,
Office of Science, Office of Basic Energy Sciences, Division of
Materials Sciences and Engineering, of the U.S. Department of Energy
under Contract No. DE-AC02-05CH11231. The work at Linz (structural
characterization) was supported by the European Research Council through
the FunDMS Advanced Grant within the "Ideas" 7th Framework Programme of
the EC, and by the Austrian Fonds zur Forderung der wissenschaftlichen
Forschung (FWF) (Grant Nos. P22477, P20065, and N107-NAN). We thank R.
Jakiela for SIMS measurements. P.R.S. acknowledges support from an NSF
fellowship, T.E.W. from a Marshall Plan Scholarship.
NR 29
TC 3
Z9 3
U1 0
U2 12
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0003-6951
J9 APPL PHYS LETT
JI Appl. Phys. Lett.
PD JAN 3
PY 2011
VL 98
IS 1
AR 012103
DI 10.1063/1.3535957
PG 3
WC Physics, Applied
SC Physics
GA 703VQ
UT WOS:000286009800032
ER
PT J
AU Kumar, RS
Antonio, D
Kanagaraj, M
Arumugam, S
Prakash, J
Sinogeikin, S
Thakur, GS
Ganguli, AK
Cornelius, A
Zhao, YS
AF Kumar, Ravhi S.
Antonio, Daniel
Kanagaraj, M.
Arumugam, S.
Prakash, J.
Sinogeikin, Stanislav
Thakur, Gohil S.
Ganguli, A. K.
Cornelius, Andrew
Zhao, Yusheng
TI Pressure induced structural transition and enhancement of
superconductivity in Co doped CeFeAsO
SO APPLIED PHYSICS LETTERS
LA English
DT Article
AB The superconducting CeFe1-xCoxAsO (Co=0.1) oxyarsenide with a transition temperature (T-c) 11.4 K has been investigated by in situ high pressure synchrotron x-ray diffraction, magnetization, and resistivity measurements. The experiments performed at 10 K up to 6 GPa and at room temperature (RT) up to 55 GPa indicate large anisotropic lattice compression. A pressure induced structural change to a collapsed tetragonal structure is observed above 10 GPa at RT. We report here the enhancement of T-c from 11.4 to 12.3 K with a small increase in pressure up to 0.4 GPa and is first observed in an electron doped Ce-1111 system. (c) 2011 American Institute of Physics. [doi: 10.1063/1.3536521]
C1 [Kumar, Ravhi S.; Antonio, Daniel; Cornelius, Andrew; Zhao, Yusheng] Univ Nevada, High Pressure Sci & Engn Ctr HiPSEC, Las Vegas, NV 89154 USA.
[Kumar, Ravhi S.; Antonio, Daniel; Cornelius, Andrew; Zhao, Yusheng] Univ Nevada, Dept Phys & Astron, Las Vegas, NV 89154 USA.
[Kanagaraj, M.; Arumugam, S.] Bharathidasan Univ, Sch Phys, Ctr High Pressure Res, Tiruchchirappalli 620024, Tamil Nadu, India.
[Prakash, J.; Thakur, Gohil S.; Ganguli, A. K.] Indian Inst Technol, Dept Chem, New Delhi 110016, India.
[Sinogeikin, Stanislav] Argonne Natl Lab, Carnegie Inst Washington, Geophys Lab, HPCAT, Argonne, IL 60439 USA.
RP Kumar, RS (reprint author), Univ Nevada, High Pressure Sci & Engn Ctr HiPSEC, Las Vegas, NV 89154 USA.
EM ravhi@physics.unlv.edu
RI Cornelius, Andrew/A-9837-2008; Kumar, Ravhi/B-8427-2012; Kanagaraj,
M/P-8586-2014; Thakur, Gohil /P-4500-2016;
OI Thakur, Gohil /0000-0002-1362-2357; Kumar, Ravhi/0000-0002-1967-1619
FU DOE-NNSA; DOE-BES; NSF; DOE-BES [DE-AC02-06CH11357]; (U.S.) Department
of Energy, National Nuclear Security Administration [DE-FC52-06NA26274];
DST, Government of India; CSIR, Government of India; DST, New Delhi;
UGC, New Delhi
FX Portions of this work were performed at HPCAT (Sector 16), Advanced
Photon Source (APS), Argonne National Laboratory. HPCAT is supported by
CIW, CDAC, UNLV, and LLNL through funding from DOE-NNSA, DOE-BES, and
NSF. APS is supported by DOE-BES under Grant No. DE-AC02-06CH11357. The
UNLV High Pressure Science and Engineering Center was supported by the
(U.S.) Department of Energy, National Nuclear Security Administration,
under Grant No. DE-FC52-06NA26274. Work at IIT Delhi was supported by a
grant to AKG by DST, Government of India and fellowship to Jaiprakash by
CSIR, Government of India. The authors S. A. and M. K. wish to thank
DST, New Delhi and UGC, New Delhi for the financial support of this
research work.
NR 21
TC 10
Z9 10
U1 0
U2 10
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0003-6951
J9 APPL PHYS LETT
JI Appl. Phys. Lett.
PD JAN 3
PY 2011
VL 98
IS 1
AR 012511
DI 10.1063/1.3536521
PG 3
WC Physics, Applied
SC Physics
GA 703VQ
UT WOS:000286009800054
ER
PT J
AU Levander, AX
Tong, T
Yu, KM
Suh, J
Fu, D
Zhang, R
Lu, H
Schaff, WJ
Dubon, O
Walukiewicz, W
Cahill, DG
Wu, J
AF Levander, A. X.
Tong, T.
Yu, K. M.
Suh, J.
Fu, D.
Zhang, R.
Lu, H.
Schaff, W. J.
Dubon, O.
Walukiewicz, W.
Cahill, D. G.
Wu, J.
TI Effects of point defects on thermal and thermoelectric properties of InN
SO APPLIED PHYSICS LETTERS
LA English
DT Article
ID CONDUCTIVITY; THERMOREFLECTANCE; SEMICONDUCTORS; TRANSPORT; FILMS; GAP
AB In contrast to most semiconductors, electrical conductivity of InN is known to increase upon high-energy particle irradiation. The effects of irradiation on its thermal and thermoelectric properties have yet to be investigated. Here we report the thermal conductivity of high-quality InN to be 120 W/m K and examine the effects of point defects generated by irradiation on the thermal conductivity and Seebeck coefficient. We show that irradiation can be used to modulate the thermal and thermoelectric properties of InN by controlling point defect concentrations. The thermoelectric figure of merit of InN was found to be insensitive to irradiation. (C) 2011 American Institute of Physics. [doi:10.1063/1.3536507]
C1 [Levander, A. X.; Suh, J.; Fu, D.; Dubon, O.; Wu, J.] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA.
[Levander, A. X.; Yu, K. M.; Suh, J.; Dubon, O.; Walukiewicz, W.; Wu, J.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA.
[Tong, T.; Cahill, D. G.] Univ Illinois, Dept Mat Sci & Engn, Urbana, IL 61801 USA.
[Fu, D.; Zhang, R.; Lu, H.] Nanjing Univ, Sch Elect Sci & Engn, Jiangsu Prov Key Lab Adv Photon & Elect Mat, Nanjing 210093, Jiangsu, Peoples R China.
[Schaff, W. J.] Cornell Univ, Dept Elect & Comp Engn, Ithaca, NY 14853 USA.
RP Levander, AX (reprint author), Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA.
EM wuj@berkeley.edu
RI Fu, Deyi/C-6624-2011; Wu, Junqiao/G-7840-2011; Yu, Kin Man/J-1399-2012;
Cahill, David/B-3495-2014
OI Fu, Deyi/0000-0003-1365-8963; Wu, Junqiao/0000-0002-1498-0148; Yu, Kin
Man/0000-0003-1350-9642;
FU National Science Foundation (NSF) [CBET-0932905]; Office of Science,
Office of Basic Energy Sciences, Materials Sciences and Engineering
Division, of the U.S. Department of Energy [DE-AC02-05CH11231]; Air
Force Office of Scientific Research MURI [FA9550-08-1-0407]; Special
Funds for Major State Basic Research Project of China [2011CB301901]
FX The materials processing and data analysis in this work were supported
by the National Science Foundation (NSF) under Grant No. CBET-0932905.
The irradiation work was supported by the Director, Office of Science,
Office of Basic Energy Sciences, Materials Sciences and Engineering
Division, of the U.S. Department of Energy under Contract No.
DE-AC02-05CH11231. A.L. acknowledges a NSF graduate research fellowship.
The TDTR measurement was supported by the Air Force Office of Scientific
Research MURI Grant No. FA9550-08-1-0407. D. Fu and R. Zhang acknowledge
support by Special Funds for Major State Basic Research Project of China
(Grant No. 2011CB301901).
NR 23
TC 23
Z9 23
U1 0
U2 18
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0003-6951
J9 APPL PHYS LETT
JI Appl. Phys. Lett.
PD JAN 3
PY 2011
VL 98
IS 1
AR 012108
DI 10.1063/1.3536507
PG 3
WC Physics, Applied
SC Physics
GA 703VQ
UT WOS:000286009800037
ER
PT J
AU Ragusa, MJ
Allaire, M
Nairn, AC
Page, R
Peti, W
AF Ragusa, Michael J.
Allaire, Marc
Nairn, Angus C.
Page, Rebecca
Peti, Wolfgang
TI Flexibility in the PP1: spinophilin holoenzyme
SO FEBS LETTERS
LA English
DT Article
DE PP1; Spinophilin; Small angle X-ray scattering; Flexibility; BILBOMD
ID STRUCTURAL BASIS; SCATTERING; PROTEINS
AB Protein phosphatase 1 (PP1) interacts with similar to 200 regulatory proteins to form holoenzymes, which target PP1 to specific locations and regulate its specificity. While it is known that many PP1 regulatory proteins are dynamic in the unbound state, much less is known about the residual flexibility after PP1 holoenzyme formation. Here, we have used small angle X-ray scattering to investigate the flexibility of the PP1: spinophilin holoenzyme in solution. Collectively, our data shows that the PP1: spinophilin holoenzyme is dynamic in solution, which allows for an increased capture radius of spinophilin and is likely important for its biological role.
Structured summary:
MINT-8057915:PP1-alpha (uniprotkb:P62136) and Spinophilin (uniprotkb:O35274) bind (MI:0407) by x ray scattering (MI: 0826) (C) 2010 Federation of European Biochemical Societies. Published by Elsevier B. V. All rights reserved.
C1 [Peti, Wolfgang] Brown Univ, Dept Mol Pharmacol Physiol & Biotechnol, Providence, RI 02912 USA.
[Ragusa, Michael J.; Page, Rebecca] Brown Univ, Dept Mol Biol Cell Biol & Biochem, Providence, RI 02912 USA.
[Allaire, Marc] Brookhaven Natl Lab, Natl Synchrotron Light Source, Upton, NY 11973 USA.
[Nairn, Angus C.] Yale Univ, Sch Med, Dept Psychiat, New Haven, CT USA.
RP Peti, W (reprint author), Brown Univ, Dept Mol Pharmacol Physiol & Biotechnol, Providence, RI 02912 USA.
EM wolfgang_peti@brown.edu
RI Peti, Wolfgang/L-3492-2014;
OI Nairn, Angus/0000-0002-7075-0195
FU National Institute of Neurological Disorders and Stroke [R01NS056128];
U.S. Department of Energy, Office of Science, Office of Basic Energy
Sciences [DE-AC02-98CH10886]
FX The authors thank Dr. Lin Yang (NSLS) for his support at beamline X9 and
Dr. Michal Hammel (LBL) for help with BILBOMD. The project described was
supported by Grant R01NS056128 from the National Institute of
Neurological Disorders and Stroke to W. P. Use of the National
Synchrotron Light Source, Brookhaven National Laboratory, was supported
by the U.S. Department of Energy, Office of Science, Office of Basic
Energy Sciences, under Contract No. DE-AC02-98CH10886.
NR 19
TC 9
Z9 9
U1 0
U2 3
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0014-5793
J9 FEBS LETT
JI FEBS Lett.
PD JAN 3
PY 2011
VL 585
IS 1
BP 36
EP 40
DI 10.1016/j.febslet.2010.11.022
PG 5
WC Biochemistry & Molecular Biology; Biophysics; Cell Biology
SC Biochemistry & Molecular Biology; Biophysics; Cell Biology
GA 702UN
UT WOS:000285921500006
PM 21094159
ER
PT J
AU Dai, JC
Gupta, S
Corbett, JD
AF Dai, Jing-Cao
Gupta, Shalabh
Corbett, John D.
TI Synthesis, Structure, and Bonding of BaTl4. Size Effects on
Encapsulation of Cations in Electron-Poor Metal Networks
SO INORGANIC CHEMISTRY
LA English
DT Article
ID POLAR INTERMETALLIC STRUCTURES; PRISMATIC ENVIRONMENTS; GOLD
SUBSTITUTION; ELEMENTS; INDIDES; CHALCOGENIDES; STABILITY; CHEMISTRY;
EXAMPLES; PHASE
AB The synthesis, structure, and bonding of BaTl4 are described [C2/m, Z=4, a=12.408(3), b=5.351(1), c=10.383(2) angstrom, beta=116.00(3)degrees]. Pairs of edge-sharing Tl pentagons are condensed to generate a network of pentagonal biprisms along b that encapsulate Ba atoms. Alternating levels of prisms along c afford six more bifunctional Tl atoms about the waists of the biprisms, giving Ba a coordination number of 16. Each Tl atom is bonded to five to seven other Tl atoms and to three to five Ba atoms. There is also strong evidence that Hg substitutes preferentially in the shared edges of the Tl biprisms in BaHg0.80Tl3.20 to generate more strongly bound Hg-2 dimers. Cations that are too small relative to the dimensions of the surrounding polyanionic network make this BaTl4 structure (and for SrIn4 and perhaps EuIn4 as well) one stable alternative to tetragonal BaAl4-type structures in which cations are bound in larger hexagon-faced nets, as for BaIn4 and SrGa4. Characteristic condensation and augmentation of cation-centered prismatic units is common among many relatively cation- and electron-poor, polar derivatives of Zintl phases gain stability. At the other extreme, the large family of Frank-Kasper phases in which the elements exhibit larger numbers of bonded neighbors are sometimes referred to as orbitally rich.
C1 [Dai, Jing-Cao; Gupta, Shalabh; Corbett, John D.] Iowa State Univ, Ames Lab, Ames, IA 50011 USA.
[Dai, Jing-Cao; Gupta, Shalabh; Corbett, John D.] Iowa State Univ, Dept Chem, Ames, IA 50011 USA.
[Dai, Jing-Cao] Huaqiao Univ, Inst Mat Phys Chem, Xiamen 361021, Fujian, Peoples R China.
RP Corbett, JD (reprint author), Iowa State Univ, Ames Lab, Ames, IA 50011 USA.
EM jcorbett@iastate.edu
RI Gupta, Shalabh/H-6214-2012; Dai, Jing-Cao/G-8427-2012
FU Office of the Basic Energy Sciences, Materials Sciences Division, U.S.
Department of Energy (DOE); DOE [DE-AC02-07CH11358]; NSFC [50971063]
FX The authors are indebted to Gordon Miller for advice on several
theoretical matters. This research was principally supported by the
Office of the Basic Energy Sciences, Materials Sciences Division, U.S.
Department of Energy (DOE), and was carried out in the facilitates of
the Ames Laboratory. The Ames Laboratory is operated for the DOE by Iowa
State University under contract No. DE-AC02-07CH11358. J.-C.D. also
thanks the NSFC (Grant 50971063) for support.
NR 45
TC 3
Z9 3
U1 0
U2 9
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0020-1669
J9 INORG CHEM
JI Inorg. Chem.
PD JAN 3
PY 2011
VL 50
IS 1
BP 238
EP 244
DI 10.1021/ic1018828
PG 7
WC Chemistry, Inorganic & Nuclear
SC Chemistry
GA 697ZK
UT WOS:000285559800028
PM 21138304
ER
PT J
AU Top, S
Efremenko, I
Rager, MN
Vessieres, A
Yaswen, P
Jaouen, G
Fish, RH
AF Top, Siden
Efremenko, Irene
Rager, Marie Noelle
Vessieres, Anne
Yaswen, Paul
Jaouen, Gerard
Fish, Richard H.
TI Synthetic and Mechanistic Pathways of Cis and Trans-Hydroxytamoxifen
Drug Derivatives Reacting with Cp*Rh Complexes that involve eta(1)-N,
eta(2)-N,O, eta(1)-O, and eta(6) Bonding Modes, via a Novel N-pi
Rearrangement; Relative Binding Affinities and Computer Docking Studies
of Cis and Trans-eta(6)-Cp*Rh-Hydroxytamoxifen Complexes at the
Estrogen, ER alpha and ER beta Receptors, and Growth Inhibition to
Breast Cancer Cells
SO INORGANIC CHEMISTRY
LA English
DT Article
ID BIOORGANOMETALLIC CHEMISTRY; MOLECULAR RECOGNITION; WATER; LIGANDS;
TAMOXIFEN; NITROGEN; CATION
AB The reactions of the breast cancer drug metabolite derivatives of tamoxifen, cis and trans-hydroxytamoxifen, cis-1 and trans-2, with [Cp*Rh(L)(3)](2+) complexes (L=H2O or MeOH), in CH2Cl2 and CH3OH solvents, initially provided the kinetic eta(1)-N complexes, cls-4 (OTf- CH3OH) and trans-5 (OTf- CH3OH), which underwent a novel, regioselective, intramolecular N-pi rearrangement to give the cis and trans-eta(6)-phenol substituted complexes, cis-6 and trans-7, via eta(2)-N,O, eta(1)-O, and ether aromatic ring eta(6) intermediates. Recent density functional theory (DFT) calculations showed a preferred ground state for eta(1)-N; eta(2).N,O; eta(1)-O; and the eta(6) complexes, including the prominent roles of the triflate anion (OTf-) and solvent molecules (CH2Cl2 and CH3OH), and provided further steric, electronic, and thermodynamic data on the mechanism of the N-pi rearrangement. The eta(6) complex, cis-6, was shown to be an antagonist for ER alpha estrogen receptor binding, in a competition experiment with the female hormone, estradiol; therefore, computer docking studies of this biologically active complex at the estrogen receptors, ER alpha and ER beta, also provided information on the binding modes and thermodynamic parameters, while bioassay results provided growth inhibition data on both hormone dependent and independent breast cancer cell lines.
C1 [Yaswen, Paul; Fish, Richard H.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
[Top, Siden; Vessieres, Anne; Jaouen, Gerard] Ecole Natl Super Chim Paris, Lab Charles Friedel, UMR 7223, F-75231 Paris 05, France.
[Efremenko, Irene] Weizmann Inst Sci, Dept Organ Chem, IL-76100 Rehovot, Israel.
[Rager, Marie Noelle] Ecole Natl Super Chim Paris, Lab RMN, F-75213 Paris 05, France.
RP Fish, RH (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
EM rhfish@lbl.gov
RI Efremenko, Irena/C-2169-2009; Jaouen, Gerard/O-9927-2016; Vessieres,
Anne/A-6916-2008
OI Jaouen, Gerard/0000-0001-5471-113X; Vessieres, Anne/0000-0002-4044-2730
FU Department of Energy [DE AC02-05CH11231]; Ministry of Immigrant
Absorption, State of Israel; Helen and Martin Kimmel Center for
Molecular Design, the Israel Science Foundation [709/05]; Minerva
Foundation; Lise Meitner-Minerva Center for Computational Quantum
Chemistry; CNRS (UMR 7576); Office of Energy Research, Office of Health
and Biological Research, U.S. Department of Energy [DE- AC02-05CH11231]
FX R.H.F. gratefully acknowledges the Department of Energy under Contract
No. DE AC02-05CH11231, Paul J. Dyson of the EPFL, Lausanne, Switzerland,
for a visiting professorship in 2004, where the initial synthetic
experiments were performed, and a visiting professorship at the Weizmann
Institute of Science, Rehovot, Israel, in 2006, where the DFT
calculations (reference 6) were initiated, including the presented
estrogen receptor docking studies. I.E. gratefully acknowledges the
financial support from the Ministry of Immigrant Absorption, State of
Israel. Research at the Weizmann Institute of Science was supported by
the Helen and Martin Kimmel Center for Molecular Design, the Israel
Science Foundation (Grant 709/05), the Minerva Foundation, and the Lise
Meitner-Minerva Center for Computational Quantum Chemistry. S.T., A.V.,
M.-N.R., and G.J. acknowledge CNRS (UMR 7576) funding for the
Bioorganometallic Chemistry program at ENSCP. P.Y. was supported by the
Office of Energy Research, Office of Health and Biological Research,
U.S. Department of Energy under Contract No. DE- AC02-05CH11231. The
previous paper in this series: Bioorganometallic Chemistry 18. I.
Efremenko, S. Top, J. M. L. Martin, R. H. Fish, Dalton Trans. 2009, 4334
(special issue on Bioorganometallic Chemistry).
NR 39
TC 12
Z9 12
U1 2
U2 12
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0020-1669
J9 INORG CHEM
JI Inorg. Chem.
PD JAN 3
PY 2011
VL 50
IS 1
BP 271
EP 284
DI 10.1021/ic1019372
PG 14
WC Chemistry, Inorganic & Nuclear
SC Chemistry
GA 697ZK
UT WOS:000285559800032
PM 21121684
ER
PT J
AU Kugai, J
Miller, JT
Guo, N
Song, CS
AF Kugai, Junichiro
Miller, Jeffrey T.
Guo, Neng
Song, Chunshan
TI Oxygen-enhanced water gas shift on ceria-supported Pd-Cu and Pt-Cu
bimetallic catalysts
SO JOURNAL OF CATALYSIS
LA English
DT Article
DE Water gas shift (WGS); Oxygen-enhanced WGS (OWGS); Pd-Cu; Pt-Cu; Cu;
Catalyst; Bimetallic catalyst; Fuel processing for fuel cells
ID SELECTIVE CO OXIDATION; PEM FUEL-CELL; CARBON-MONOXIDE; LOW-TEMPERATURE;
CUO/CEO2 CATALYSTS; METAL CATALYSTS; HYDROGEN PROX; DOPED CERIA;
REDUCTION; KINETICS
AB Aiming at enhancing H-2 production in water gas shift (WGS) for fuel cell application, a small amount of oxygen was added to WGS reaction toward oxygen-enhanced water gas shift (OWGS) on ceria-supported bimetallic Pd-Cu and Pt-Cu catalysts. Both CO conversion and H-2 yield were found to increase by the oxygen addition. The remarkable enhancement of H-2 production by O-2 addition in short contact time was attributed to the enhanced shift reaction, rather than the oxidation of CO on catalyst surface. The strong dependence of H-2 production rate on CO concentration in OWGS kinetic study suggested O-2 lowers the CO surface coverage. It was proposed that O-2 breaks down the domain structure of chemisorbed CO into smaller domains to increase the chance for coreactant (H2O) to participate in the reaction and the heat of exothermic surface reaction helping to enhance WGS kinetics. Pt-Cu and Pd-Cu bimetallic catalysts were found to be superior to monometallic catalysts for both CO conversion and H-2 production for OWGS at 300 degrees C or lower, while the superiority of bimetallic catalysts was not as pronounced in WGS. These catalytic properties were correlated with the structure of the bimetallic catalysts. EXAFS spectra indicated that Cu forms alloys with Pt and with Pd. TPR demonstrated the strong interaction between the two metals causing the reduction temperature of Cu to decrease upon Pd or Pt addition. The transient pulse desorption rate of CO2 from Pd-Cu supported on CeO2 is faster than that of Pd, suggesting the presence of Cu in Pd-Cu facilitate CO2 desorption from Pd catalyst. The oxygen storage capacity (OSC) of CeO2 in the bimetallic catalysts indicates that Cu is much less pyrophoric in the bimetallic catalysts due to lower O-2 uptake compared to monometallic Cu. These significant changes in structure and electronic properties of the bimetallic catalysts are the result of highly dispersed Pt or Pd in the Cu nanoparticles. (C) 2010 Elsevier Inc. All rights reserved.
C1 [Kugai, Junichiro; Song, Chunshan] Penn State Univ, Clean Fuels & Catalysis Program, EMS Energy Inst, University Pk, PA 16802 USA.
[Kugai, Junichiro; Song, Chunshan] Penn State Univ, Dept Energy & Mineral Engn, University Pk, PA 16802 USA.
[Miller, Jeffrey T.; Guo, Neng] Argonne Natl Lab, Chem Sci & Energy Div, Argonne, IL 60430 USA.
RP Song, CS (reprint author), Penn State Univ, Clean Fuels & Catalysis Program, EMS Energy Inst, 209 Acad Projects Bldg, University Pk, PA 16802 USA.
EM csong@psu.edu
RI Song, Chunshan/B-3524-2008; BM, MRCAT/G-7576-2011; Guo,
Neng/A-3223-2013; ID, MRCAT/G-7586-2011
OI Song, Chunshan/0000-0003-2344-9911;
FU US Office of Naval Research; US Department of Energy, National Energy
Technology Laboratory; US Department of Energy, Office of Basic Energy
Sciences, Office of Science [W-31-109-Eng-38]; Department of Energy;
MRCAT member institutions
FX We wish to thank the US Office of Naval Research and US Department of
Energy, National Energy Technology Laboratory for partial support of
this work on liquid fuel processing for fuel cells. Use of the Advanced
Photon Source was supported by the US Department of Energy, Office of
Basic Energy Sciences, Office of Science (DOE-BES-SC), under Contract
No. W-31-109-Eng-38. MRCAT operations are supported by the Department of
Energy and the MRCAT member institutions. We are also grateful to Rhodia
Co. for generously providing CeO2 support material.
NR 36
TC 50
Z9 50
U1 13
U2 115
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 0021-9517
J9 J CATAL
JI J. Catal.
PD JAN 3
PY 2011
VL 277
IS 1
BP 46
EP 53
DI 10.1016/j.jcat.2010.10.014
PG 8
WC Chemistry, Physical; Engineering, Chemical
SC Chemistry; Engineering
GA 712XT
UT WOS:000286700300005
ER
PT J
AU Gaharwar, AK
Schexnailder, PJ
Dundigalla, A
White, JD
Matos-Perez, CR
Cloud, JL
Seifert, S
Wilker, JJ
Schmidt, G
AF Gaharwar, Akhilesh K.
Schexnailder, Patrick J.
Dundigalla, Avinash
White, James D.
Matos-Perez, Cristina R.
Cloud, Joshua L.
Seifert, Soenke
Wilker, Jonathan J.
Schmidt, Gudrun
TI Highly Extensible Bio-Nanocomposite Fibers
SO MACROMOLECULAR RAPID COMMUNICATIONS
LA English
DT Article
DE bio-nanocomposites; fibers; mechanical properties; poly(ethylene oxide);
silicates
ID LAYERED SILICATE NANOCOMPOSITES; POLY(ETHYLENE OXIDE); POLYMER
NANOCOMPOSITES; CLAY; HYDROGELS; CRYSTALLIZATION; DISPERSIONS;
ORIENTATION; COMPOSITES; RESPONSES
AB Here, we show that a poly(ethylene oxide) polymer can be physically cross-linked with silicate nanoparticles (Laponite) to yield highly extensible, bio-nanocomposite fibers that, upon pulling, stretch to extreme lengths and crystallize polymer chains. We find that both, nanometer structures and mechanical properties of the fibers respond to mechanical deformation by exhibiting strain-induced crystallization and high elongation. We explore the structural characteristics using X-ray scattering and the mechanical properties of the dried fibers made from hydrogels in order to determine feasibility for eventual biomedical use and to map out directions for further materials development.
C1 [Gaharwar, Akhilesh K.; Schexnailder, Patrick J.; Schmidt, Gudrun] Purdue Univ, Weldon Sch Biomed Engn, W Lafayette, IN 47907 USA.
[Dundigalla, Avinash] Louisiana State Univ, Dept Chem, Baton Rouge, LA 70803 USA.
[White, James D.; Matos-Perez, Cristina R.; Cloud, Joshua L.; Wilker, Jonathan J.] Purdue Univ, Dept Chem, W Lafayette, IN 47907 USA.
[Seifert, Soenke] Argonne Natl Lab, Div Chem, Argonne, IL 60439 USA.
RP Schmidt, G (reprint author), Purdue Univ, Weldon Sch Biomed Engn, W Lafayette, IN 47907 USA.
EM gudrun@purdue.edu
RI Gaharwar, Akhilesh/C-5856-2009; Gaharwar, Akhilesh/A-2002-2014
OI Gaharwar, Akhilesh/0000-0002-0284-0201; Gaharwar,
Akhilesh/0000-0002-0284-0201
FU National Science Foundation; Office of Naval Research
FX This research has been supported in part by a National Science
Foundation Career award (GS) and the Office of Naval Research (JJW).
NR 41
TC 22
Z9 22
U1 4
U2 24
PU WILEY-V C H VERLAG GMBH
PI WEINHEIM
PA PO BOX 10 11 61, D-69451 WEINHEIM, GERMANY
SN 1022-1336
J9 MACROMOL RAPID COMM
JI Macromol. Rapid Commun.
PD JAN 3
PY 2011
VL 32
IS 1
BP 50
EP 57
DI 10.1002/marc.201000556
PG 8
WC Polymer Science
SC Polymer Science
GA 701CY
UT WOS:000285793100006
PM 21432969
ER
PT J
AU Sobierajski, R
Bruijn, S
Khorsand, AR
Louis, E
de Kruijs, RWEV
Burian, T
Chalupsky, J
Cihelka, J
Gleeson, A
Grzonka, J
Gullikson, EM
Hajkova, V
Hau-Riege, S
Juha, L
Jurek, M
Klinger, D
Krzywinski, J
London, R
Pelka, JB
Plocinski, T
Rasinski, M
Tiedtke, K
Toleikis, S
Vysin, L
Wabnitz, H
Bijkerk, F
AF Sobierajski, R.
Bruijn, S.
Khorsand, A. R.
Louis, E.
de Kruijs, R. W. E. van
Burian, T.
Chalupsky, J.
Cihelka, J.
Gleeson, A.
Grzonka, J.
Gullikson, E. M.
Hajkova, V.
Hau-Riege, S.
Juha, L.
Jurek, M.
Klinger, D.
Krzywinski, J.
London, R.
Pelka, J. B.
Plocinski, T.
Rasinski, M.
Tiedtke, K.
Toleikis, S.
Vysin, L.
Wabnitz, H.
Bijkerk, F.
TI Damage mechanisms of MoN/SiN multilayer optics for next-generation
pulsed XUV light sources
SO OPTICS EXPRESS
LA English
DT Article
ID FREE-ELECTRON LASER; EXTREME-ULTRAVIOLET; ION-BOMBARDMENT; LITHOGRAPHY;
RADIATION; FILMS
AB We investigated the damage mechanism of MoN/SiN multilayer XUV optics under two extreme conditions: thermal annealing and irradiation with single shot intense XUV pulses from the free-electron laser facility in Hamburg - FLASH. The damage was studied "post-mortem" by means of X-ray diffraction, interference-polarizing optical microscopy, atomic force microscopy, and scanning transmission electron microscopy. Although the timescale of the damage processes and the damage threshold temperatures were different (in the case of annealing it was the dissociation temperature of Mo(2)N and in the case of XUV irradiation it was the melting temperature of MoN) the main damage mechanism is very similar: molecular dissociation and the formation of N(2), leading to bubbles inside the multilayer structure. (C) 2010 Optical Society of America
C1 [Sobierajski, R.; Bruijn, S.; Khorsand, A. R.; Louis, E.; de Kruijs, R. W. E. van; Bijkerk, F.] EURATOM, FOM, Inst Plasma Phys Rijnhuizen, NL-3430 BE Nieuwegein, Netherlands.
[Sobierajski, R.; Jurek, M.; Klinger, D.; Pelka, J. B.] Polish Acad Sci, Inst Phys, PL-02668 Warsaw, Poland.
[Burian, T.; Chalupsky, J.; Cihelka, J.; Hajkova, V.; Juha, L.; Vysin, L.] Inst Phys AS CR, Prague 18221 8, Czech Republic.
[Cihelka, J.] J Heyrovsky Inst Phys Chem ASCR, Prague 18223 8, Czech Republic.
[Gleeson, A.] CCRLC, Daresbury Lab, Warrington WA4 4AD, Cheshire, England.
[Grzonka, J.; Plocinski, T.; Rasinski, M.] Warsaw Univ Technol, PL-02507 Warsaw, Poland.
[Gullikson, E. M.] Univ Calif Berkeley, Lawrence Berkeley Lab, Ctr Xray Opt, Berkeley, CA 94720 USA.
[Hau-Riege, S.; London, R.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Krzywinski, J.] SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA.
[Tiedtke, K.; Toleikis, S.; Wabnitz, H.] Deutsches Elektronen Synchrotron DESY, D-22607 Hamburg, Germany.
[Bijkerk, F.] Univ Twente, MESA Inst Nanotechnol, Enschede, Netherlands.
RP Sobierajski, R (reprint author), EURATOM, FOM, Inst Plasma Phys Rijnhuizen, Edisonbaan 14, NL-3430 BE Nieuwegein, Netherlands.
EM ryszard.sobierajski@ifpan.edu.pl
RI Sobierajski, Ryszard/E-7619-2012; Plocinski, Tomasz/B-2857-2014; Vysin,
Ludek/G-6885-2014; Hajkova, Vera/G-9391-2014; Chalupsky,
Jaromir/H-2079-2014; Burian, Tomas/H-3236-2014; Klinger,
Dorota/K-8819-2016; Pelka, Jerzy/S-8587-2016;
OI Burian, Tomas/0000-0003-3982-9978; Pelka, Jerzy/0000-0002-1863-8219;
Plocinski, Tomasz/0000-0003-3325-3904; Rasinski,
Marcin/0000-0001-6277-4421
FU Peak-Brightness-Collaboration [II-20022049 EC]; Carl Zeiss SMT AG;
Oberkochen; 'Stichting voor Fundamenteel Onderzoek der Materie (FOM)';
'Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO)';
AgentschapNL; Ministry of Science and Higher Education of Poland, SPB
[DESY/68/2007]; National Research Centers program [LC510, LC528];
program INGO [LA08024]; Czech Science Foundation [202/08/H057]; Academy
of Sciences of the Czech Republic [Z10100523, IAA400100701,
KAN300100702]; Lawrence Livermore National Laboratory
[DE-AC52-07NA27344]
FX Experiments at FLASH have been performed within the framework of the
Peak-Brightness-Collaboration (project II-20022049 EC). Support from the
PBC and the operators of the FLASH facility are gratefully acknowledged.
This work has been partially carried out in the frame of the FOM
Industrial Partnership Programme I10 (XMO) which is supported by Carl
Zeiss SMT AG, Oberkochen and the 'Stichting voor Fundamenteel Onderzoek
der Materie (FOM)', the latter being supported by the 'Nederlandse
Organisatie voor Wetenschappelijk Onderzoek (NWO)'. Additional support
via the AgentschapNL (EXEPT project) is acknowledged. This work has also
been supported by the Ministry of Science and Higher Education of
Poland, SPB nr. DESY/68/2007, the Czech Ministry of Education from the
National Research Centers program (Projects LC510 and LC528) and program
INGO (Grant LA08024), Czech Science Foundation (Grant 202/08/H057), by
the Academy of Sciences of the Czech Republic (Grants Z10100523,
IAA400100701, and KAN300100702) and by Lawrence Livermore National
Laboratory under contract DE-AC52-07NA27344.
NR 34
TC 16
Z9 16
U1 2
U2 14
PU OPTICAL SOC AMER
PI WASHINGTON
PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA
SN 1094-4087
J9 OPT EXPRESS
JI Opt. Express
PD JAN 3
PY 2011
VL 19
IS 1
BP 193
EP 205
DI 10.1364/OE.19.000193
PG 13
WC Optics
SC Optics
GA 702SJ
UT WOS:000285915300031
PM 21263557
ER
PT J
AU Sato, M
Ichiki, K
Takeuchi, TT
AF Sato, Masanori
Ichiki, Kiyotomo
Takeuchi, Tsutomu T.
TI Copula cosmology: Constructing a likelihood function
SO PHYSICAL REVIEW D
LA English
DT Article
ID GALAXY LUMINOSITY FUNCTION; LARGE-SCALE STRUCTURE; COSMIC SHEAR; FIELD;
SIMULATIONS; CONSTRAINTS; STATISTICS; ENERGY; MATTER; WIDE
AB To estimate cosmological parameters from a given data set, we need to construct a likelihood function, which sometimes has a complicated functional form. We introduce the copula, a mathematical tool to construct an arbitrary multivariate distribution function from one-dimensional marginal distribution functions with any given dependence structure. It is shown that a likelihood function constructed by the so-called Gaussian copula can reproduce very well the n-dimensional probability distribution of the cosmic shear power spectrum obtained from a large number of ray-tracing simulations. This suggests that the Copula likelihood will be a powerful tool for future weak lensing analyses, instead of the conventional multivariate Gaussian likelihood.
C1 [Sato, Masanori; Ichiki, Kiyotomo] Nagoya Univ, Dept Phys, Nagoya, Aichi 4648602, Japan.
[Sato, Masanori] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Takeuchi, Tsutomu T.] Nagoya Univ, Inst Adv Res, Nagoya, Aichi 4648601, Japan.
RP Sato, M (reprint author), Nagoya Univ, Dept Phys, Nagoya, Aichi 4648602, Japan.
EM masanori@a.phys.nagoya-u.ac.jp
FU JSPS; Program for Improvement of Research Environment for Young
Researchers from Special Coordination Funds for Promoting Science and
Technology; MEXT of Japan [467]; [20740105]; [21740177]; [22012004]
FX M. S. is supported by the JSPS. T. T. T. has been supported by the
Program for Improvement of Research Environment for Young Researchers
from Special Coordination Funds for Promoting Science and Technology.
This work is partially supported by the Grant-in-Aid for the Scientific
Research Fund 20740105 (T. T. T), 21740177, 22012004 (K. I.) and the
Grant-in-Aid for Scientific Research on Priority Areas No. 467 "Probing
the Dark Energy through an Extremely Wide and Deep Survey with Subaru
Telescope" commissioned by the MEXT of Japan.
NR 36
TC 16
Z9 16
U1 0
U2 1
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 2470-0010
EI 2470-0029
J9 PHYS REV D
JI Phys. Rev. D
PD JAN 3
PY 2011
VL 83
IS 2
AR 023501
DI 10.1103/PhysRevD.83.023501
PG 8
WC Astronomy & Astrophysics; Physics, Particles & Fields
SC Astronomy & Astrophysics; Physics
GA 713XG
UT WOS:000286770100001
ER
PT J
AU Aad, G
Abbott, B
Abdallah, J
Abdelalim, AA
Abdesselam, A
Abdinov, O
Abi, B
Abolins, M
Abramowicz, H
Abreu, H
Acerbi, E
Acharya, BS
Ackers, M
Adams, DL
Addy, TN
Adelman, J
Aderholz, M
Adomeit, S
Adorisio, C
Adragna, R
Adye, T
Aefsky, S
Aguilar-Saavedra, JA
Aharrouche, M
Ahlen, SP
Ahles, F
Ahmad, A
Ahmed, H
Ahsan, M
Aielli, G
Akdogan, T
Akesson, TPA
Akimoto, G
Akimov, AV
Aktas, A
Alam, MS
Alam, MA
Albrand, S
Aleksa, M
Aleksandrov, IN
Aleppo, M
Alessandria, F
Alexa, C
Alexander, G
Alexandre, G
Alexopoulos, T
Alhroob, M
Aliev, M
Alimonti, G
Alison, J
Aliyev, M
Allport, PP
Allwood-Spiers, SE
Almond, J
Aloisio, A
Alon, R
Alonso, A
Alonso, J
Alviggi, MG
Amako, K
Amaral, P
Ambrosio, G
Amelung, C
Ammosov, VV
Amorim, A
Amoros, G
Amram, N
Anastopoulos, C
Andeen, T
Anders, CF
Anderson, KJ
Andreazza, A
Andrei, V
Andrieux, ML
Anduaga, XS
Angerami, A
Anghinolfi, F
Anjos, N
Annovi, A
Antonaki, A
Antonelli, M
Antonelli, S
Antos, J
Antunovic, B
Anulli, F
Aoun, S
Apolle, R
Arabidze, G
Aracena, I
Arai, Y
Arce, ATH
Archambault, JP
Arfaoui, S
Arguin, JF
Argyropoulos, T
Arik, E
Arik, M
Armbruster, AJ
Arms, KE
Armstrong, SR
Arnaez, O
Arnault, C
Artamonov, A
Arutinov, D
Asai, M
Asai, S
Asfandiyarov, R
Ask, S
Asman, B
Asner, D
Asquith, L
Assamagan, K
Astbury, A
Astvatsatourov, A
Atoian, G
Aubert, B
Auerbach, B
Auge, E
Augsten, K
Aurousseau, M
Austin, N
Avolio, G
Avramidou, R
Axen, D
Ay, C
Azuelos, G
Azuma, Y
Baak, MA
Baccaglioni, G
Bacci, C
Bach, AM
Bachacou, H
Bachas, K
Bachy, G
Backes, M
Badescu, E
Bagnaia, P
Bai, Y
Bailey, DC
Bain, T
Baines, JT
Baker, OK
Baker, MD
Baker, S
Pedrosa, FBD
Banas, E
Banerjee, P
Banerjee, S
Banfi, D
Bangert, A
Bansal, V
Baranov, SP
Baranov, S
Barashkou, A
Galtieri, AB
Barber, T
Barberio, EL
Barberis, D
Barbero, M
Bardin, DY
Barillari, T
Barisonzi, M
Barklow, T
Barlow, N
Barnett, BM
Barnett, RM
Baroncelli, A
Barone, M
Barr, AJ
Barreiro, F
da Costa, JBG
Barrillon, P
Bartoldus, R
Bartsch, D
Bates, RL
Batkova, L
Batley, JR
Battaglia, A
Battistin, M
Battistoni, G
Bauer, F
Bawa, HS
Bazalova, M
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CA ATLAS Collaboration
TI Search for quark contact interactions in dijet angular distributions in
pp collisions at root s=7 TeV measured with the ATLAS detector
SO PHYSICS LETTERS B
LA English
DT Article
DE ATLAS; LHC; 7 TeV; Dijets angular distributions; Quark compositeness;
Contact interactions
ID COLLIDER
AB Dijet angular distributions from the first LHC pp collisions at center-of-mass energy root s = 7 TeV have been measured with the ATLAS detector. The dataset used for this analysis represents an integrated luminosity of 3.1 pb(-1). Dijet chi distributions and centrality ratios have been measured up to dijet masses of 2.8 TeV, and found to be in good agreement with Standard Model predictions. Analysis of the chi distributions excludes quark contact interactions with a compositeness scale Lambda below 3.4 TeV, at 95% confidence level, significantly exceeding previous limits. (C) 2010 CERN. Published by Elsevier B.V. All rights reserved.
C1 [Aad, G.; Ahles, F.; Aktas, A.; Beckingham, M.; Bernhard, R.; Bianchi, R. M.; Bitenc, U.; Bruneliere, R.; Caron, S.; Carpentieri, C.; Christov, A.; Dahlhoff, A.; Dietrich, J.; Eckert, S.; Fehling-Kaschek, M.; Flechl, M.; Glatzer, J.; Hartert, J.; Heldmann, M.; Herten, G.; Horner, S.; Jakobs, K.; Joos, D.; Ketterer, C.; Koenig, S.; Kollefrath, M.; Kononov, A. I.; Kuehn, S.; Lai, S.; Landgraf, U.; Lohwasser, K.; Ludwig, I.; Ludwig, J.; Lumb, D.; Maassen, M.; Mahboubi, K.; Meinhardt, J.; Messmer, I.; Mohr, W.; Nilsen, H.; Parzefall, U.; Pfeifer, B.; Bueso, X. Portell; Rammensee, M.; Runge, K.; Rurikova, Z.; Schmidt, E.; Schroff, D.; Schumacher, M.; Stoerig, K.; Sundermann, J. E.; Temming, K. K.; Thoma, S.; Tobias, J.; Venturi, M.; Vivarelli, I.; von Radziewski, H.; Warsinsky, M.; Webel, M.; Weiser, C.; Werner, M.; Wiik, L. A. M.; Winkelmann, S.; Xie, S.; Zimmermann, S.] Univ Freiburg, Fak Math & Phys, D-79104 Freiburg, Germany.
[Alam, M. S.; Ernst, J.; Mahmood, A.; Rojo, V.] SUNY Albany, Albany, NY 12222 USA.
[Ahmed, H.; Buchanan, N. J.; Caron, B.; Chan, K.; Chen, L.; Gingrich, D. M.; Kim, M. S.; Liu, S.; Lu, J.; MacQueen, D.; Moore, R. W.; Pinfold, J. L.; Soluk, R.; Soni, N.] Univ Alberta, Dept Phys, Ctr Particle Phys, Edmonton, AB T6G 2G7, Canada.
[Cakir, O.; Ciftci, A. K.; Ciftci, R.; Persembe, S.] Ankara Univ, Fac Sci, Dept Phys, TR-061000 Ankara, Turkey.
[Yildiz, H. Duran] Dumlupinar Univ, Fac Arts & Sci, Dept Phys, Kutahya, Turkey.
Gazi Univ, Fac Arts & Sci, Dept Phys, TR-06500 Ankara, Turkey.
[Sultansoy, S.] TOBB Univ Econ & Technol, Fac Arts & Sci, Div Phys, TR-06560 Ankara, Turkey.
[Cakir, I. Turk] Turkish Atom Energy Commiss, TR-06530 Ankara, Turkey.
[Arnaez, O.; Aubert, B.; Aurousseau, M.; Berger, N.; Colas, J.; Di Ciaccio, L.; Doan, T. K. O.; El Kacimi, M.; Elles, S.; Ghez, P.; Gouanere, M.; Goy, C.; Guillemin, T.; Helary, L.; Hryn'ova, T.; Iengo, P.; Ionescu, G.; Jeremie, A.; Jezequel, S.; Kataoka, M.; Koletsou, I.; Labbe, J.; Lafaye, R.; Laplace, S.; Marchand, J. F.; Massol, N.; Neukermans, L.; Perrodo, P.; Przysiezniak, H.; Sauvage, G.; Todorov, T.; Zitoun, R.; Zolnierowski, Y.] Univ Savoie, LAPP, CNRS, IN2P3, Annecy Le Vieux, France.
[Asquith, L.; Blair, R. E.; Chekanov, S.; Cranshaw, J.; Dawson, J. W.; Gieraltowski, G. F.; Guarino, V. J.; Hill, D.; Hill, N.; Karr, K.; LeCompte, T.; Lim, H.; Malon, D.; May, E. N.; Nodulman, L.; Paramonov, A.; Petereit, E.; Price, L. E.; Proudfoot, J.; Ferrando, B. M. Salvachua; Schlereth, J. L.; Stanek, R. W.; Underwood, D. G.; van Gemmeren, P.; Vaniachine, A.; Zhang, J.; Zhang, Q.] Argonne Natl Lab, Div High Energy Phys, Argonne, IL 60439 USA.
[Cheu, E.; Johns, K. A.; Kaushik, V.; Lampen, C. L.; Lampl, W.; Lei, X.; Loch, P.; Mal, P.; Ruehr, F.; Rutherfoord, J. P.; Savine, A. Y.; Shaver, L.; Shupe, M. A.; Tompkins, D.; Varnes, E. W.] Univ Arizona, Dept Phys, Tucson, AZ 85721 USA.
[Brandt, A.; De, K.; Farbin, A.; Kim, H.; Nilsson, P.; Ozturk, N.; Pravahan, R.; Sarkisyan-Grinbaum, E.; Sosebee, M.; Spurlock, B.; Stradling, A. R.; Usai, G.; Vartapetian, A.; White, A.; Yu, J.] Univ Texas Arlington, Dept Phys, Arlington, TX 76019 USA.
[Antonaki, A.; Fassouliotis, D.; Giakoumopoulou, V.; Giokaris, N.; Ioannou, P.; Manousakis-Katsikakis, A.; Tzanakos, G.; Vellidis, C.] Univ Athens, Dept Phys, GR-15771 Athens, Greece.
[Alexopoulos, T.; Argyropoulos, T.; Avramidou, R.; Dris, M.; Filippas, A.; Fokitis, M.; Gazis, E. N.; Georgatos, F.; Iakovidis, G.; Katsoufis, E.; Maltezos, S.; Mountricha, E.; Panagiotopoulou, E.; Papadopoulou, Th. D.; Savva, P.; Tsarouchas, C.; Tsipolitis, G.; Tzamarioudaki, E.; Vlachos, S.; Xaplanteris, L.] Natl Tech Univ Athens, Dept Phys, Iroon Polytech 9, GR-15780 Zografos, Greece.
[Abdinov, O.; Aliyev, M.; Huseynov, N.; Khalil-zada, F.; Rzaeva, S.] Azerbaijan Acad Sci, Inst Phys, AZ-143 Baku, Azerbaijan.
[Abdallah, J.; Bosman, M.; Casado, M. P.; Cavalli-Sforza, M.; Conidi, M. C.; Demirkoz, B.; Dosil, M.; Curull, X. Espinal; Fiorini, L.; Grinstein, S.; Helsens, C.; Jorgensen, S.; Korolkov, I.; Martinez, M.; Meoni, E.; Mir, L. M.; Verge, L. Miralles; Nadal, J.; Francisco, O. Norniella; Osuna, C.; Pages, A. Pacheco; Aranda, C. Padilla; Codina, E. Perez; Puigdengoles, C.; Riu, I.; Rossetti, V.; Segura, E.; Sushkov, S.; Vaque, F. Vives; Volpi, M.; Vorwerk, V.] Univ Autonoma Barcelona, Inst Fis Altes Energies, IFAE, ES-08193 Bellaterra, Barcelona, Spain.
[Borjanovic, I.; Krstic, J.; Popovic, D. S.; Reljic, D.; Sijacki, Dj.; Simic, Lj.; Vranjes, N.; Milosavljevic, M. Vranjes; Vudragovic, D.] Univ Belgrade, Inst Phys, Belgrade 11001, Serbia.
[Bozovic-Jelisavcic, I.; Mamuzic, J.; Mudrinic, M.] Vinca Inst Nucl Sci, Belgrade 11000, Serbia.
[Buanes, T.; Burgess, T.; Eigen, G.; Johansen, L. G.; Kastanas, A.; Lipniacka, A.; Mohn, B.; Oye, O. K.; Rosendahl, P. L.; Sandaker, H.; Sjursen, T. B.; Stugu, B.; Tonoyan, A.; Ugland, M.] Univ Bergen, Dept Phys & Technol, NO-5007 Bergen, Norway.
[Alonso, J.; Arguin, J. -F.; Bach, A. M.; Barbaro Galtieri, A.; Barnett, R. M.; Beringer, J.; Biesiada, J.; Calafiura, P.; Ciocio, A.; Dube, S.; Einsweiler, K.; Ely, R.; Gaponenko, A.; Garcia-Sciveres, M.; Gilchriese, M.; Haber, C.; Heinemann, B.; Hinchliffe, I.; Hsu, S. -C.; Hurwitz, M.; Joseph, J.; Korn, A.; Lavrijsen, W.; Leggett, C.; Loscutoff, P.; Lys, J.; Madaras, R. J.; Parker, S. I.; Quarrie, D. R.; Scherzer, M. I.; Shapiro, M.; Siegrist, J.; Skinnari, L. A.; Stavropoulos, G.; Tatarkhanov, M.; Tompkins, L.; Vahsen, S.; Varouchas, D.; Virzi, J.; Yao, W-M; Yao, Y.; Zdrazil, M.; Zenz, S.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
[Alonso, J.; Arguin, J. -F.; Bach, A. M.; Barbaro Galtieri, A.; Barnett, R. M.; Beringer, J.; Biesiada, J.; Calafiura, P.; Ciocio, A.; Dube, S.; Einsweiler, K.; Ely, R.; Gaponenko, A.; Garcia-Sciveres, M.; Gilchriese, M.; Haber, C.; Heinemann, B.; Hinchliffe, I.; Hsu, S. -C.; Hurwitz, M.; Joseph, J.; Korn, A.; Lavrijsen, W.; Leggett, C.; Loscutoff, P.; Lys, J.; Madaras, R. J.; Parker, S. I.; Quarrie, D. R.; Scherzer, M. I.; Shapiro, M.; Siegrist, J.; Skinnari, L. A.; Stavropoulos, G.; Tatarkhanov, M.; Tompkins, L.; Vahsen, S.; Varouchas, D.; Virzi, J.; Yao, W-M; Yao, Y.; Zdrazil, M.; Zenz, S.] Univ Calif Berkeley, Div Phys, Berkeley, CA 94720 USA.
[Aliev, M.; Giorgi, F. M.; Grancagnolo, S.; Kind, O.; Kolanoski, H.; Kwee, R.; Lacker, H.; Leyton, M.; Lohse, T.; Mandrysch, R.; Nikiforov, A.; Garcia, Y. Rodriguez; Sidoti, A.; zur Nedden, M.] Humboldt Univ, Inst Phys, D-12489 Berlin, Germany.
[Battaglia, A.; Beck, H. P.; Borer, C.; Ereditato, A.; Martin, T. Fonseca; Gallo, V.; Haeberli, C.; Haug, S.; Kabana, S.; Pretzl, K.; Topfel, C.; Venturi, N.; Weber, M. S.] Univ Bern, Albert Einstein Ctr Fundamental Phys, High Energy Phys Lab, CH-3012 Bern, Switzerland.
[Booth, J. R. A.; Bracinik, J.; Bright-Thomas, P. C.; Charlton, D. G.; Collins, N. J.; Curtis, C. J.; Dowell, J. D.; Garvey, J.; Hadley, D. R.; Harrison, K.; Hawkes, C. M.; Head, S. J.; Hillier, S. J.; Hollins, T. I.; Homer, R. J.; Lilley, J. N.; Mahout, G.; Martin, T. A.; McMahon, T. J.; Moye, T. H.; O'Neale, S. W.; Palmer, J. D.; Slater, M.; Thomas, J. P.; Thompson, P. D.; Typaldos, D.; Watkins, P. M.; Watson, M. F.; Wilson, J. A.] Univ Birmingham, Sch Phys & Astron, Birmingham B15 2TT, W Midlands, England.
[Akdogan, T.; Arik, E.; Arik, M.; Dogan, O. B.; Istin, S.; Rador, T.] Bogazici Univ, Fac Sci, Dept Phys, TR-80815 Bebek, Turkey.
[Cetin, S. A.] Dogus Univ, Fac Arts & Sci, Dept Phys, TR-34722 Istanbul, Turkey.
[Beddall, A. J.; Beddall, A.; Bingul, A.; Diblen, F.] Gaziantep Univ, Fac Engn, Dept Engn Phys, TR-27310 Sehitkamil, Gaziantep, Turkey.
Istanbul Tech Univ, Fac Arts & Sci, Dept Phys, TR-34469 Istanbul, Turkey.
[Antonelli, S.; Bellagamba, L.; Bertin, A.; Bindi, M.; Boscherini, D.; Bruni, A.; Bruni, G.; Bruschi, M.; Caforio, D.; Ciocca, C.; Corradi, M.; De Castro, S.; Di Sipio, R.; Fabbri, L.; Giacobbe, B.; Giusti, P.; Massa, I.; Mengarelli, A.; Piccinini, M.; Polini, A.; Rinaldi, L.; Sbarra, C.; Sbrizzi, A.; Semprini-Cesari, N.; Spighi, R.; Valentinetti, S.; Villa, M.; Vitale, A.; Zoccoli, A.] Ist Nazl Fis Nucl, Sez Bologna, IT-40127 Bologna, Italy.
[Antonelli, S.; Bertin, A.; Bindi, M.; Caforio, D.; Ciocca, C.; De Castro, S.; Di Sipio, R.; Fabbri, L.; Massa, I.; Mengarelli, A.; Piccinini, M.; Sbarra, C.; Sbrizzi, A.; Semprini-Cesari, N.; Valentinetti, S.; Villa, M.; Vitale, A.; Zoccoli, A.] Univ Bologna, Dipartimento Fis, IT-40127 Bologna, Italy.
[Ackers, M.; Alhroob, M.; Anders, C. F.; Arutinov, D.; Barbero, M.; Bartsch, D.; Brock, I.; Cammin, J.; Cristinziani, M.; Desch, K.; Dingfelder, J.; Fischer, P.; Fleischmann, S.; Gaycken, G.; Geich-Gimbel, Ch.; Gonella, L.; Hemperek, T.; Hillert, S.; Huegging, F.; Ince, T.; Janus, M.; Karagounis, M.; Khoriauli, G.; Koevesarki, P.; Kokott, T.; Kostyukhin, V. V.; Kroseberg, J.; Krueger, H.; Kruth, A.; Lehmacher, M.; Loddenkoetter, T.; Mathes, M.; Mazur, M.; Meuser, S.; Moeser, N.; Mueller, K.; Nanava, G.; Nattermann, T.; Nuncio-Quiroz, A. -E.; Hanninger, G. Nunes; Peric, I.; Poghosyan, T.; Psoroulas, S.; Radics, B.; Raith, B.; Rottlaender, I.; Runolfsson, O.; Ruwiedel, C.; Schmieden, K.; Schmitz, M.; Stockmanns, T.; Therhaag, J.; Treis, J.; Tsung, J. -W.; Uchida, K.; Uhlenbrock, M.; Vlasov, N.; Vogel, A.; von Toerne, E.; Wermes, N.; Wienemann, P.; Zendler, C.; Zimmermann, R.; Zimmermann, S.] Univ Bonn, Inst Phys, D-53115 Bonn, Germany.
[Ahlen, S. P.; Butler, J. M.; Harrington, R. D.; Hazen, E.; Lewandowska, M.; Love, J.; Marin, A.; Nation, N. R.; Posch, C.; Shank, J. T.; Whitaker, S. P.; Yan, Z.; Youssef, S. P.] Boston Univ, Dept Phys, Boston, MA 02215 USA.
[Aefsky, S.; Amelung, C.; Bensinger, J. R.; Blocker, C.; Dushkin, A.; Hashemi, K.; Kirsch, L. E.; Mladenov, D.; Pomeroy, D.; Skvorodnev, N.; Wellenstein, H.] Brandeis Univ, Dept Phys, Waltham, MA 02454 USA.
[Caloba, L. P.; Cerqueira, A. S.; Coura Torres, R.; Mello, A. Da Rocha Gesualdi; Da Silva, P. V. M.; do Vale, M. A. B.; Donadelli, M.; Maidantchik, C.; Marroquim, F.; Nepomuceno, A. A.; Perantoni, M.; Seixas, J. M.] Univ Fed Rio de Janeiro, COPPE EE IF, Ilha Fundao, BR-21945970 Rio De Janeiro, Brazil.
[Donadelli, M.; Leite, M. A. L.] Univ Sao Paulo, Inst Fis, BR-05508900 Sao Paulo, Brazil.
[Adams, D. L.; Armstrong, S. R.; Assamagan, K.; Baker, M. D.; Begel, M.; Caballero, J.; Chen, H.; Tcherniatine, V.; Salgado, P. E. De Castro Faria; Deng, W.; Dhullipudi, R.; Ernst, M.; Gadfort, T.; Gibbard, B.; Gordon, H. A.; Greenwood, Z. D.; Hackenburg, R.; Klimentov, A.; Lanni, F.; Le Vine, M.; Lissauer, D.; Lynn, D.; Ma, H.; Maeno, T.; Majewski, S.; Misawa, S.; Nevski, P.; Nikolopoulos, K.; Damazio, D. Oliveira; Paige, F.; Panitkin, S.; Pleier, M. -A.; Polychronakos, V.; Popescu, R.; Potekhin, M.; Protopopescu, S.; Purohit, M.; Radeka, V.; Rahm, D.; Rajagopalan, S.; Redlinger, G.; Rescia, S.; Sawyer, L.; Smirnov, Y.; Snyder, S.; Sondericker, J.; Steinberg, P.; Stumer, I.; Takai, H.; Tarrade, F.; Trivedi, A.; Undrus, A.; Wenaus, T.; White, S.; Ye, S.; Yu, D.] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA.
[Alexa, C.; Badescu, E.; Boldea, V.; Caprini, I.; Caprini, M.; Caramarcu, C.; Chesneanu, D.; Constantinescu, S.; Dita, P.; Dita, S.; Micu, L.; Pantea, D.; Popeneciu, G. A.; Rotaru, M.; Stoicea, G.] Natl Inst Phys & Nucl Engn, R-077125 Bucharest, Romania.
[Darlea, G. L.] Univ Politehn Bucuresti, Sector 6, Bucharest 060042, Romania.
West Univ, Timisoara, Romania.
[Gonzalez Silva, M. L.; Otero y Garzon, G.; Piegaia, R.; Romeo, G.] Univ Buenos Aires, FCEyN, Dto Fis, RA-1428 Buenos Aires, DF, Argentina.
[Ask, S.; Barber, T.; Barlow, N.; Batley, J. R.; Brochu, F. M.; Carter, J. R.; Chapman, J. D.; Cowden, C.; French, S. T.; Frost, J. A.; Hill, J. C.; Lester, C. G.; Moeller, V.; Palmer, M. J.; Parker, M. A.; Phillips, A. W.; Robinson, D.; Sandoval, T.; Thomson, M.; Ward, C. P.; White, M. J.] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England.
[Archambault, J. P.; Asner, D.; Cojocaru, C. D.; Gillberg, D.; Heelan, L.; Liu, C.; McCarthy, T. G.; Oakham, F. G.; Ueno, R.; Vincter, M. G.; Whalen, K.] Carleton Univ, Dept Phys, Ottawa, ON K1S 5B6, Canada.
[Aleksa, M.; Amaral, P.; Anghinolfi, F.; Arfaoui, S.; Baak, M. A.; Bachas, K.; Bachy, G.; Pedrosa, F. Baltasar Dos Santos; Battistin, M.; Bellina, F.; Beltramello, O.; Berge, D.; Bertinelli, F.; Blanchot, G.; Bock, R.; Bogaerts, J. A.; Boyd, J.; Braem, A.; Bremer, J.; Burckhart, H.; Butin, F.; Campana, S.; Capeans Garrido, M. D. M.; Carli, T.; Cataneo, F.; Catinaccio, A.; Cattai, A.; Cerri, A.; Chromek-Burckhart, D.; Cook, J.; Cote, D.; Danielsson, H. O.; Dauvergne, J. P.; De Oliveira Branco, M.; Dell'Acqua, A.; Delmastro, M.; Delruelle, N.; Di Girolamo, A.; Di Girolamo, B.; Dittus, F.; Dobinson, R.; Dobos, D.; Dobson, E.; Drevermann, H.; Dudarev, A.; Duehrssen, M.; Dunford, M.; Dydak, F.; Eifert, T.; Ellis, N.; Elsing, M.; Fabre, C.; Farthouat, P.; Fassnacht, P.; Fedorko, I.; Fedorko, W.; Flammer, J.; Foussat, A.; Francis, D.; Franz, S.; Froeschl, R.; Froidevaux, D.; Torregrosa, E. Fullana; Gabaldon, C.; Gallas, M. V.; Garelli, N.; Garonne, V.; Gayde, J. -C.; Gianotti, F.; Gildemeister, O.; Godlewski, J.; Gollub, N. P.; Gonidec, A.; Goossens, L.; Gorini, B.; Gorski, B. T.; Grafstroem, P.; Grognuz, J.; Gruwe, M.; Haas, S.; Hahn, E.; Haider, S.; Hatch, M.; Hauschild, M.; Hawkings, R. J.; Correia, A. M. Henriques; Hervas, L.; Hoecker, A.; Huhtinen, M.; Inigo-Golfin, J.; Jaekel, M. R.; Jenni, P.; Belenguer, M. Jimenez; Jonsson, O.; Joram, C.; Kaplon, J.; Kerschen, N.; Klioutchnikova, T.; Knobloch, J.; Koblitz, B.; Koeneke, K.; Koffas, T.; Kollar, D.; Kotamaeki, M. J.; La Rosa, A.; Lamanna, M.; Lantzsch, K.; Lasseur, C.; Lassnig, M.; Leahu, M.; Miotto, G. Lehmann; Lichard, P.; Lundberg, J.; Magnoni, L.; Mapelli, A.; Mapelli, L.; Marchesotti, M.; Martin, B.; Maugain, J. M.; McLaren, R. A.; Menot, C.; Messina, A. M.; Meyer, T. C.; Michal, S.; Miele, P.; Molina-Perez, J.; Morley, A. K.; Mornacchi, G.; Nairz, A. M.; Negri, G.; Nessi, M.; Nicquevert, B.; Niinikoski, T.; Nordberg, M.; Nyman, T.; Palestini, S.; Palla, J.; Pastore, Fr.; Pauly, T.; Pengo, R.; Pernegger, H.; Petersen, B. A.; Petersen, J.; Piacquadio, G.; Pirotte, O.; Pommes, K.; Poppleton, A.; Poulard, G.; Pribyl, L.; Price, M. J.; Prokofiev, K.; Raymond, M.; Rembser, C.; Dos Santos, D. Roda; Roe, S.; Salzburger, A.; Scannicchio, D. A.; Schaller, M.; Schlenker, S.; Schott, M.; Schuh, S.; Schuler, G.; Schweiger, D.; Sfyrla, A.; Sherman, D.; Shimizu, S.; Sloper, J.; Speckmayer, P.; Spigo, G.; Spiwoks, R.; Stanecka, E.; Stockton, M. C.; Sumida, T.; Szeless, B.; Gameiro, S. Taboada; Tackmann, K.; Tappern, G. P.; Ten Kate, H.; Viegas, F. J. Tique Aires; Torchiani, I.; Tremblet, L.; Tricoli, A.; Tyrvainen, H.; Unal, G.; van der Ster, D.; Vandelli, W.; Vandoni, G.; Varela Rodriguez, F.; Veness, R.; Vinek, E.; Voss, R.; Vuillermet, R.; Wells, P. S.; Wengler, T.; Wenig, S.; Werner, P.; Wilkens, H. G.; Winklmeier, F.; Wotschack, J.; Zajacova, Z.; Zema, P. F.; Zsenei, A.] CERN, CH-1211 Geneva 23, Switzerland.
[Anderson, K. J.; Boveia, A.; Brubaker, E.; Canelli, F.; Choudalakis, G.; Ciftci, A. K.; Costin, T.; Feng, E. J.; Gardner, R. W.; Gupta, A.; Jen-La Plante, I.; Kapliy, A.; Mambelli, M.; Melachrinos, C.; Merritt, F. S.; Onyisi, P. U. E.; Oreglia, M. J.; Pilcher, J. E.; Shochet, M. J.; Tuggle, J. M.] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA.
[Diaz, M. A.; Panes, B.; Quinonez, F.; Maltrana, D. Romero; Urrejola, P.] Pontificia Univ Catolica Chile, Fac Fis, Dept Fis, Santiago 22, Chile.
[Brooks, W. K.; Kuleshov, S.; Oyarzun, A.; Pezoa, R.; Prokoshin, F.] Univ Tecn Federico Santa Maria, Dept Fis, Valparaiso, Chile.
[Bai, Y.; Cheng, S.; Han, H.; Jin, S.; Lu, F.; Ouyang, Q.; Shan, L. Y.; Tong, G.; Xie, Y.; Xu, G.; Yang, Y.; Yuan, L.; Zheng, S.] Chinese Acad Sci, Inst High Energy Phys, Cn Beijing 100049, Peoples R China.
[Gong, C.; Han, L.; Jiang, Y.; Jin, G.; Liu, M.; Liu, Y.; Xu, C.; Zhao, Z.] Univ Sci & Technol China, Dept Modern Phys, Hefei 230026, Cn Anhui, Peoples R China.
[Chen, S.; Chen, T.; Ping, J.; Qi, M.; Yu, J.] Nanjing Univ, Dept Phys, Nanjing 210093, Cn Jiangsu, Peoples R China.
[Feng, C.; Ge, P.; He, M.; Li, B.; Miao, J.; Sun, X. H.; Wang, J.; Zhan, Z.; Zhang, X.; Zhu, C. G.] Shandong Univ, High Energy Phys Grp, Jinan 250100, Cn Shandong, Peoples R China.
[Busato, E.; Calvet, D.; Cinca, D.; Defay, P. O.; Febbraro, R.; Ghodbane, N.; Guicheney, C.; Pallin, D.; Podlyski, F.; Santoni, C.; Says, L. P.; Vazeille, F.; Viret, S.] Univ Clermont Ferrand, Clermont Univ, Phys Corpusculaire Lab, CNRS,IN2P3, FR-63177 Aubiere, France.
[Andeen, T.; Angerami, A.; Brooijmans, G.; Caughron, S.; Cole, B.; Cooke, M.; Copic, K.; Dodd, J.; Grau, N.; Gray, H. M.; Hughes, E. W.; Leltchouk, M.; Mateos, D. Lopez; Marshall, Z.; Parsons, J. A.; Penson, A.; Perez, K.; Reale, V. Perez; Spano, F.; Tuts, P. M.; Urbaniec, D.; Williams, E.; Willis, W.; Wulf, E.; Zivkovic, L.] Columbia Univ, Nevis Lab, Irvington, NY 10533 USA.
[Dam, M.; Driouichi, C.; Facius, K.; Hansen, J. R.; Hansen, J. B.; Hansen, J. D.; Hansen, P. H.; Heisterkamp, S.; Jakobsen, S.; Jez, P.; Joergensen, M. D.; Kadlecik, P.; Lundquist, J.; Mackeprang, R.; Petersen, T. C.; Rensch, B.; Simonyan, M.; Xella, S.] Univ Copenhagen, Niels Bohr Inst, DK-2100 Copenhagen O, Denmark.
[Adorisio, C.; Capua, M.; Crosetti, G.; Fazio, S.; La Rotonda, L.; Mastroberardino, A.; Morello, G.; Salvatore, D.; Schioppa, M.; Susinno, G.; Tassi, E.] Ist Nazl Fis Nucl, Grp Collegato Cosenza, IT-87036 Arcavacata Di Rende, Italy.
[Adorisio, C.; Capua, M.; Crosetti, G.; Fazio, S.; La Rotonda, L.; Mastroberardino, A.; Morello, G.; Salvatore, D.; Schioppa, M.; Susinno, G.; Tassi, E.] Univ Calabria, Dipartimento Fis, IT-87036 Arcavacata Di Rende, Italy.
[Dabrowski, W.; Dwuznik, M.; Idzik, M.; Jelen, K.; Kisielewska, D.; Koperny, S.; Kowalski, T. Z.; Mindur, B.; Rulikowska-Zarebska, E.; Toczek, B.] AGH Univ Sci & Technol, Fac Phys & Appl Comp Sci, PL-30059 Krakow, Poland.
[Banas, E.; Blocki, J.; Bocian, D.; Bruckman de Renstrom, P. A.; Gornicki, E.; Hajduk, Z.; Iwanski, W.; Kaczmarska, A.; Kisielewski, B.; Korcyl, K.; Malecki, Pa.; Malecki, P.; Moszczynski, A.; Olszewski, A.; Olszowska, J.; Richter-Was, E.; Stodulski, M.; Szczygiel, R. R.; Szymocha, T.; Trzupek, A.; Turala, M.; Wolter, M. W.; Wosiek, B. K.; Zemla, A.] Polish Acad Sci, Henryk Niewodniczanski Inst Nucl Phys, PL-31342 Krakow, Poland.
[Daya, R. K.; Yagci, K. Dindar; Firan, A.; Goldin, D.; Hadavand, H. K.; Hoffman, J.; Ilchenko, Y.; Ishmukhametov, R.; Joffe, D.; Kama, S.; Kasmi, A.; Kehoe, R.; Liang, Z.; Liu, T.; Lu, L.; Renkel, P.; Rios, R. R.; Stroynowski, R.; Ye, J.; Zarzhitsky, P.] So Methodist Univ, Dept Phys, Dallas, TX 75275 USA.
[Ahsan, M.; Galyaev, E.; Izen, J. M.; Lou, X.; Reeves, K.] Univ Texas Dallas, Richardson, TX 75080 USA.
[Antunovic, B.; Bechtle, R.; Bergeaas Kuutmann, E.; Boehler, M.; Brandt, G.; Ehrenfeld, W.; Ferrara, V.; Fischer, G.; Glazov, A.; Goebel, M.; Fajardo, L. S. Gomez; Gosdzik, B.; Gregor, I. M.; Haller, J.; Hiller, K. H.; Husemann, U.; Johnert, S.; Karnevskiy, M.; Katzy, J.; Kono, T.; Kowalski, H.; Lange, C.; Lobodzinska, E.; Ludwig, D.; Maettig, S.; Medinnis, M.; Mehlhase, S.; Mijovic, L.; Moenig, K.; Naumann, T.; Notz, D.; Nozicka, M.; Petschull, D.; Placakyte, R.; Qin, Z.; Stelzer, H. J.; Terwort, M.; Wildt, M. A.; Zhu, H.] DESY, D-22603 Hamburg, Germany.
[Bunse, M.; Goessling, C.; Hirsch, F.; Klaiber-Lodewigs, J.; Klingenberg, R.; Krasel, O.; Mass, M.; Muenstermann, D.; Rajek, S.; Reisinger, I.; Walbersloh, J.; Weber, J.; Wuestenfeld, J.; Wunstorf, R.] TU Dortmund, DE-44221 Dortmund, Germany.
[Goepfert, T.; Kar, D.; Kobel, M.; Leonhardt, K.; Ludwig, A.; Mader, W. F.; Prudent, X.; Schaarschmidt, J.; Schumacher, J. W.; Schwierz, R.; Seifert, F.; Steinbach, P.; Straessner, A.] Tech Univ Dresden, Inst Kern & Teilchenphys, D-01069 Dresden, Germany.
[Arce, A. T. H.; Benjamin, D. P.; Bocci, A.; Ebenstein, W. L.; Fowler, A. J.; Klinkby, E. B.; Ko, B. R.; Oh, S. H.; Wang, C.; Yamaoka, J.] Duke Univ, Dept Phys, Durham, NC 27708 USA.
[Bhimji, W.; Buckley, A. G.; Clark, P. J.; Wynne, B. M.] Univ Edinburgh, Sch Phys & Astron, Edinburgh EH9 3JZ, Midlothian, Scotland.
[Griesmayer, E.] Fachhsch Wiener Neustadt, AT-2700 Wiener Neustadt, Austria.
[Annovi, A.; Antonelli, M.; Barone, M.; Beretta, M.; Bertolucci, S.; Bilokon, H.; Braccini, S.; Cerutti, F.; Chiarella, V.; Curatolo, M.; Esposito, B.; Ferrer, M. L.; Gatti, C.; Laurelli, P.; Maccarrone, G.; Martini, A.; Miscetti, S.; Nicoletti, G.; Salvucci, A.; Sansoni, A.; Testa, M.; Ventura, S.; Vilucchi, E.; Wen, M.; Zambrano, V.] Ist Nazl Fis Nucl, Lab Nazl Frascati, IT-00044 Frascati, Italy.
[Abdelalim, A. A.; Alexandre, G.; Backes, M.; Bell, P. J.; Bell, W. H.; Berglund, E.; Blondel, A.; Bucci, F.; Clark, A.; Dao, V.; Diaz Gomez, M. M.; Efthymiopoulos, I.; Ferrere, D.; Gadomski, S.; Navarro, J. E. Garcia; Gaumer, O.; Gonzalez-Sevilla, S.; Goulette, M. P.; Hamilton, A.; Leger, A.; Lister, A.; Macina, D.; Mangin-Brinet, M.; Latour, B. Martin Dit; Mikulec, B.; Moneta, L.; Herrera, C. Mora; Morone, M. -C.; Orellana, F.; Pasztor, G.; Pohl, M.; Robichaud-Veronneau, A.; Rosselet, L.; Urquijo, P.; Wu, X.] Univ Geneva, Sect Phys, CH-1211 Geneva 4, Switzerland.
[Barberis, D.; Beccherle, R.; Caso, C.; Cervetto, M.; Coccaro, A.; Cornelissen, T.; Cuneo, S.; Dameri, M.; Darbo, G.; Parodi, A. Ferretto; Ferro, F.; Gagliardi, G.; Gemme, C.; Morettini, P.; Odino, G. A.; Olcese, M.; Osculati, B.; Parodi, F.; Rossi, L. P.; Schiavi, C.] Ist Nazl Fis Nucl, Sez Genova, IT-16146 Genoa, Italy.
[Barberis, D.; Caso, C.; Cervetto, M.; Coccaro, A.; Cornelissen, T.; Cuneo, S.; Dameri, M.; Parodi, A. Ferretto; Ferro, F.; Gagliardi, G.; Odino, G. A.; Osculati, B.; Parodi, F.; Schiavi, C.] Univ Genoa, Dept Fis, IT-16146 Genoa, Italy.
[Chikovani, L.; Djobava, T.; Khubua, I.; Magradze, E.; Mchedlidze, G.; Mosidze, M.; Tsiskaridze, V.; Tskhadadze, E. G.] Georgian Acad Sci, Inst Phys, GE-380077 Tbilisi, Rep of Georgia.
[Chikovani, L.; Djobava, T.; Khubua, I.; Magradze, E.; Mchedlidze, G.; Mosidze, M.; Tsiskaridze, V.; Tskhadadze, E. G.] Tbilisi State Univ, HEP Inst, GE-380086 Tbilisi, Rep of Georgia.
[Astvatsatourov, A.; Dueren, M.; Stenzel, H.] Univ Giessen, Inst Phys 2, D-35392 Giessen, Germany.
[Allwood-Spiers, S. E.; Bates, R. L.; Britton, D.; Bussey, R.; Buttar, C. M.; Collins-Tooth, C.; D'Auria, S.; Doherty, T.; Doyle, A. T.; Ferrag, S.; Kenyon, M.; Khakzad, M.; McGlone, H.; Moraes, A.; Nicholson, C.; O'Shea, V.; Barrera, C. Oropeza; Pickford, A.; Raine, C.; Robson, A.; Saxon, D. H.; Shaw, C.; Smith, K. M.; St Denis, R. D.; Steele, G.; Stewart, G. A.; Thompson, A. S.; Wraight, K.; Wright, C.] Univ Glasgow, Dept Phys & Astron, Glasgow G12 8QQ, Lanark, Scotland.
[Ay, C.; Blumenschein, U.; Brandt, O.; Erdmann, J.; Evangelakou, D.; Grosse-Knetter, J.; Guindon, S.; Henrichs, A.; Hensel, C.; Keil, M.; Kohn, F.; Krieger, N.; Kroeninger, K.; Mann, A.; Meyer, J.; Morel, J.; Park, S. J.; Park, W.; Quadt, A.; Roe, A.; Shabalina, E.; Uhrmacher, M.; Weber, P.; Weingarten, J.] Univ Gottingen, Inst Phys 2, D-37077 Gottingen, Germany.
[Albrand, S.; Andrieux, M. -L.; Belhorma, B.; Clement, B.; Collot, J.; Crepe-Renaudin, S.; De Saintignon, P.; Delsart, P. A.; Donini, J.; Dzahini, D.; Hostachy, J. -Y.; Ledroit-Guillon, F.; Lleres, A.; Lucotte, A.; Malek, F.; Martin, Ph.; Polci, F.; Stark, J.; Trocme, B.] Univ Grenoble 1, Lab Phys Subatom & Cosmol, CNRS IN2P3, INPG, FR-38026 Grenoble, France.
[Addy, T. N.; Harvey, A.; McFarlane, K. W.; Shin, T.; Vassilakopoulos, V. I.] Hampton Univ, Dept Phys, Hampton, VA 23668 USA.
[Guimaraes da Costa, J. Barreiro; Belloni, A.; Black, K. M.; Brandenburg, G. W.; Franklin, M.; Hurst, P.; Huth, J.; Jeanty, L.; Kagan, M.; Kashif, L.; Outschoorn, V. Martinez; Mills, C.; Moed, S.; Morii, M.; Oliver, J.; Prasad, S.; Smith, B. C.; della Porta, G. Zevi] Harvard Univ, Lab Particle Phys & Cosmol, Cambridge, MA 02138 USA.
[Andrei, V.; Childers, J. T.; Dietzsch, T. A.; Foehlisch, E.; Geweniger, C.; Hanke, P.; Henke, M.; Khomich, A.; Kluge, E. -E.; Lendermann, V.; Meier, K.; Mueller, F.; Poddar, S.; Scharf, V.; Schultz-Coulon, H. -C.; Stamen, R.; Wessels, M.] Heidelberg Univ, Kirchhoff Inst Phys, D-69120 Heidelberg, Germany.
[Radescu, V.; Schaetzel, S.; Schoening, A.] Inst Phys, D-69120 Heidelberg, Germany.
[Kugel, A.; Maenner, R.; Schroer, N.] ZITI Ruprecht Karls Univ Heidelberg, Lehrstuhl Informat 5, DE-68131 Mannheim, Germany.
[Ohsugi, T.] Hiroshima Univ, Fac Sci, Higashihiroshima, Jp Hiroshima 7398526, Japan.
[Nagasaka, Y.] Hiroshima Inst Technol, Fac Appl Informat Sci, Saeki Ku, Hiroshima, Jp Hiroshima 7315193, Japan.
[Brunet, S.; Cwetanski, P.; Egorov, K.; Evans, H.; Gagnon, P.; Jain, V.; Luehring, F.; Manara, A.; Marino, C. P.; Ogren, H.; Penwell, J.; Price, D.; Rust, D. R.; Whittington, D.; Yang, Y.] Indiana Univ, Dept Phys, Bloomington, IN 47405 USA.
[Bischof, R.; Epp, B.; Girtler, P.; Jussel, P.; Kneringer, E.; Kuhn, D.; Rudolph, G.] Inst Astro & Teilchenphys, A-6020 Innsbruck, Austria.
[Behera, P. K.; Limper, M.; Mallik, U.; Schreiner, A.; Zaidan, R.] Univ Iowa, Iowa City, IA 52242 USA.
[Cochran, J.; Lebedev, A.; Mete, A. S.; Meyer, W. T.; Nelson, A.; Prell, S.; Rosenberg, E. I.; Ruiz-Martinez, A.; Triplett, N.; Yamamoto, K.] Iowa State Univ, Dept Phys & Astron, Ames High Energy Phys Grp, Ames, IA 50011 USA.
[Aleksandrov, I. N.; Baranov, S.; Barashkou, A.; Bardin, D. Y.; Bednyakov, V. A.; Boyko, I. R.; Budagov, I. A.; Chelkov, G. A.; Cheplakov, A.; Chepurnov, V. F.; Chizhov, M. V.; Dedovich, D. V.; Demichev, M.; Glonti, G. L.; Gostkin, M. I.; Grigalashvili, N.; Gusakov, Y.; Kalinovskaya, L. V.; Kazarinov, M. Y.; Kekelidze, G. D.; Kharchenko, D.; Khovanskiy, V.; Kolesnikov, V.; Kotov, V. M.; Kruchonak, U.; Krumshteyn, Z. V.; Kukhtin, V.; Ladygin, E.; Lazarev, A. B.; Malyukov, S.; Manjavidze, I. D.; Minashvili, I. A.; Mineev, M.; Nikolaev, K.; Olchevski, A. G.; Peshekhonov, V. D.; Romanov, V. M.; Rumyantsev, L.; Rusakovich, N. A.; Sadykov, R.; Sisakyan, A. N.; Topilin, N. D.; Vinogradov, V. B.; Zhemchugov, A.] Joint Inst Nucl Res Dubna, Joint Inst Nucl Res, RU-141980 Dubna, Moscow Region, Russia.
[Amako, K.; Arai, Y.; Doi, Y.; Haruyama, T.; Ikegami, Y.; Ikeno, M.; Ishii, K.; Ishino, M.; Iwasaki, H.; Kanzaki, J.; Kohriki, T.; Kondo, T.; Makida, Y.; Manabe, A.; Mitsui, S.; Morita, Y.; Murakami, K.; Nagano, K.; Nozaki, M.; Odaka, S.; Ohska, T. K.; Ozone, K.; Sasaki, O.; Sasaki, T.; Suzuki, Y.; Tanaka, S.; Terada, S.; Tojo, J.; Tokushuku, K.; Tsuno, S.; Unno, Y.; Yamada, M.; Yamamoto, A.; Yasu, Y.] High Energy Accelerator Res Org, KEK, Tsukuba, Ibaraki 3050801, Japan.
[Hayakawa, T.; Homma, Y.; Ichimiya, R.; Ishikawa, A.; Kawagoe, K.; King, M.; Kiyamura, H.; Kurashige, H.; Matsushita, T.; Miyazaki, K.; Nishiyama, T.; Ochi, A.; Okada, S.; Omachi, C.; Suita, K.; Takeda, H.; Tani, K.; Tokunaga, K.; Yamazaki, Y.] Kobe Univ, Grad Sch Sci, Nada Ku, Jp Kobe 6578501, Japan.
[Sasao, N.] Kyoto Univ, Fac Sci, Sakyou Ku, Kyoto, Jp Kyoto 6068502, Japan.
[Takashima, R.] Kyoto Univ, Fushimi Ku, Kyoto, Jp Kyoto 6128522, Japan.
[Anduaga, X. S.; Dova, M. T.; Monticelli, F.; Tripiana, M. F.] Univ Nacl La Plata, FCE, Dept Fis, IFLP CONICET UNLP, RA-1900 La Plata, Argentina.
[Borissov, G.; Bouhova-Thacker, E. V.; Brodbeck, T. J.; Catmore, J. R.; Cheatham, S.; Chilingarov, A.; Davidson, R.; De Mora, L.; Fox, H.; Henderson, R. C. W.; Hughes, G.; Jones, R. W. L.; Kartvelishvili, V.; Long, R. E.; Love, P. A.; Ratoff, P. N.; Sloan, T. J.; Smizanska, M.; Walder, J.] Univ Lancaster, Dept Phys, Lancaster LA1 4YB, England.
[Bianco, M.; Brambilla, E.; Cataldi, G.; Cazzato, A.; Chiodini, G.; Coluccia, R.; Crupi, R.; Gorini, E.; Grancagnolo, F.; Guida, A.; Perrino, R.; Primavera, M.; Spagnolo, S.; Ventura, A.] Ist Nazl Fis Nucl, Sez Lecce, IT-73100 Lecce, Italy.
[Bianco, M.; Brambilla, E.; Cazzato, A.; Coluccia, R.; Crupi, R.; Gorini, E.; Guida, A.; Spagnolo, S.; Ventura, A.] Univ Salento, Dipartimento Fis, IT-73100 Lecce, Italy.
[Allport, P. P.; Austin, N.; Burdin, S.; D'Onofrio, M.; Dervan, P.; Greenshaw, T.; Gwilliam, C. B.; Hayward, H. S.; Houlden, M. A.; Jackson, J. N.; Jones, T. J.; King, B. T.; Klein, M.; Klein, U.; Kluge, T.; Kretzschmar, J.; Laycock, P.; Leney, K. J. C.; Maxfield, S. J.; Mehta, A.; Migas, S.; Prichard, P. M.; Sellers, G.; Vankov, P.; Vossebeld, J. H.; Waller, P.; Wiglesworth, C.; Wrona, B.] Univ Liverpool, Oliver Lodge Lab, Liverpool L69 3BX, Merseyside, England.
[Cindro, V.; Dolenc, I.; Filipcic, A.; Gorisek, A.; Kersevan, B. P.; Kramberger, G.; Macek, B.; Mandic, I.; Mikuz, M.] Jozef Stefan Inst, SI-1000 Ljubljana, Slovenia.
[Cindro, V.; Dolenc, I.; Filipcic, A.; Gorisek, A.; Kersevan, B. P.; Kramberger, G.; Macek, B.; Mandic, I.; Mikuz, M.] Univ Ljubljana, Dept Phys, SI-1000 Ljubljana, Slovenia.
[Adragna, R.; Beck, G. A.; Carter, A. A.; Cerrito, L.; Cooper, B. D.; Eisenhandler, E.; Ellis, K.; Gnanvo, K. G.; Landon, M. P. J.; Lloyd, S. L.; Martin, A. J.; Morin, J.; Morris, J. D.; Piccaro, E.; Poll, J.; Rizvi, E.; Stevenson, K.; Castanheira, M. Teixeira Dias; Traynor, D.] Queen Mary Univ London, Dept Phys, London E1 4NS, England.
[Alam, M. A.; Berry, T.; Boisvert, V.; Boorman, G.; Cooper-Smith, N. J.; Cowan, G.; Edwards, C. A.; George, S.; Goncalo, R.; Green, B.; Kilvington, G.; McGarvie, S.; McMahon, T. R.; Misiejuk, A.; Strong, J. A.; Tamsett, M. C.; Teixeira-Dias, P.] Univ London, Dept Phys, Egham TW20 0EX, Surrey, England.
[Baker, S.; Bernius, C.; Boeser, S.; Butterworth, J. M.; Byatt, T.; Campanelli, M.; Christidi, I. A.; Davison, A. R.; Dean, S.; Drohan, J. G.; Jansen, E.; Jones, T. W.; Konstantinidis, N.; Monk, J.; Nash, M.; Nurse, E.; Ozcan, V. E.; Prabhu, R.; Richards, A.; Robinson, J. E. M.; Sherwood, P.; Siegert, F.; Simmons, B.; Stefanidis, E.; Taylor, C.; Waugh, B. M.] UCL, Dept Phys & Astron, London WC1E 6BT, England.
[Beau, T.; Bordoni, S.; Calderini, G.; Camard, A.; Cavalleri, P.; Chareyre, E.; De Cecco, S.; Derue, F.; Imbault, D.; Krasny, M. W.; Lacour, D.; Laforge, B.; Le Dortz, O.; Lellouch, J.; Marchiori, G.; Nikolic-Audit, I.; Ocariz, J.; Ridel, M.; Roos, L.; Schwemling, Ph.; Theveneaux-Pelzer, T.; Trincaz-Duvoid, S.; Trinh, T. N.; Vannucci, F.] Univ Paris 07, Univ Paris 06, Lab Phys Nucl & Hautes Energies, CNRS IN2P3, FR-75252 Paris 05, France.
[Akesson, T. P. A.; Alonso, A.; Boelaert, N.; Groth-Jensen, J.; Hedberg, V.; Jarlskog, G.; Ji, W.; Lundberg, B.; Lytken, E.; Meirose, B.; Mjoernmark, J. U.; Smirnova, O.] Lund Univ, Nat Vetenskapliga Fak, Fysiska Inst, SE-22100 Lund, Sweden.
[Barreiro, F.; Cantero, J.; Del Peso, J. J.; Glasman, C.; Labarga, L.; Lagouri, T.; March, L.; Nebot, E.; Oliver, C.; Rodier, S.; Terron, J.] Univ Autonoma Madrid, Fac Ciencias, Dept Fis Teor, ES-28049 Madrid, Spain.
[Aharrouche, M.; Bendel, M.; Blum, W.; Buescher, V.; Calvet, S.; Eckweiler, S.; Edmonds, K.; Ellinghaus, F.; Ertel, E.; Fiedler, F.; Fleckner, J.; Goeringer, C.; Handel, C.; Hohlfeld, M.; Kawamura, G.; Kleinknecht, K.; Koenig, S.; Koepke, L.; Lungwitz, M.; Masetti, L.; Meyer, C.; Moreno, D.; Neusiedl, A.; Rieke, S.; Sander, H. G.; Schaefer, U.; Schmitt, C.; Schroeder, C.; Siragusa, G.; Tapprogge, S.; Anh, T. Vu; Wicke, D.] Johannes Gutenberg Univ Mainz, Inst Phys, DE-55099 Mainz, Germany.
[Almond, J.; Brown, G.; Chavda, V.; Cox, B. E.; Da Via, C.; Duerdoth, I. P.; Forti, A.; Foster, J. M.; Freestone, J.; Hughes-Jones, R. E.; Ibbotson, M.; Jones, G.; Keates, J. R.; Kelly, M.; Kolya, S. D.; Lane, J. L.; Loebinger, F. K.; Marshall, R.; Martyniuk, A. C.; Masik, J.; Miyagawa, P. S.; Nasteva, I.; Nauyock, F.; On, A.; Owen, M.; Pater, J. R.; Pilkington, A. D.; Plano, W. G.; Potter, K. P.; Schwanenberger, C.; Snow, S. W.; Tevlin, C. M.; Thompson, R. J.; Watts, S.; Yang, U. K.] Univ Manchester, Sch Phys & Astron, Manchester M13 9PL, Lancs, England.
[Aoun, S.; Bee, C.; Benchouk, C.; Bernardet, K.; Cerna, C.; Clemens, J. C.; Coadou, Y.; Correard, S.; Delpierre, P.; Djama, F.; Etienne, F.; Feligioni, L.; Hallewell, G. D.; Henry-Couannier, F.; Hoffmann, D.; Hubaut, F.; Kuna, M.; Lapoire, C.; Le Guirriec, E.; Leveque, J.; Monnier, E.; Odier, J.; Petit, E.; Pralavorio, P.; Qian, Z.; Rozanov, A.; Talby, M.; Tisserant, S.; Toth, J.; Touchard, F.; Vacavant, L.; Zhang, H.] Aix Marseille Univ, CPPM, CNRS, IN2P3, Marseille, France.
[Brau, B.; Colon, G.; Dallapiccola, C.; Meade, A.; Moyse, E. J. W.; Thompson, E. N.; van Eldik, N.; Willocq, S.; Woudstra, M. J.] Univ Massachusetts, Dept Phys, Amherst, MA 01003 USA.
[Corriveau, F.; Dobbs, M.; Dufour, M. -A.; Guler, H.; Klemetti, M.; Mc Donald, J.; Nderitu, S. K.; Potter, C. T.; Robertson, S. H.; Rios, C. Santamarina; Schram, M.; Vachon, B.; Warburton, A.] McGill Univ, High Energy Phys Grp, Montreal, PQ H3A 2T8, Canada.
[Barberio, E. L.; Davey, W.; Davidson, N.; Felzmann, C. U.; Kazi, S. I.; Limosani, A.; Moorhead, G. F.; Phan, A.; Sevior, M. E.; Shao, Q. T.; Taylor, G. N.] Univ Melbourne, Sch Phys, Au Parkville, Vic 3010, Australia.
[Armbruster, A. J.; Chapman, J. W.; Cirilli, M.; Dai, T.; De la Cruz-Burelo, E.; Diehl, E. B.; Eppig, A.; Ferretti, C.; Goldfarb, S.; Levin, D.; Li, X.; Liu, H.; Liu, J. B.; Mc Kee, S. P.; Neal, H. A.; Panikashvili, N.; Purdham, J.; Qian, J.; Scheirich, D.; Strandberg, J.; Thun, R. P.; Wilson, A.; Yang, H.; Zhou, B.] Univ Michigan, Dept Phys, Randall Lab 2477, Ann Arbor, MI 48109 USA.
[Abolins, M.; Arabidze, G.; Brock, R.; Bromberg, C.; Comune, G.; Di Mattia, A.; Ermoline, I.; Gonzalez-Pineiro, B.; Hauser, R.; Heim, S.; Holzbauer, J. L.; Huston, J.; Koll, J.; Kraus, J.; Linnemann, J. T.; Mangeard, P. S.; Martin, B.; Miller, R. J.; Pope, B. G.; Richards, R. A.; Ryan, P.; Schwienhorst, R.; Tollefson, K.] Michigan State Univ, Dept Phys & Astron, High Energy Phys Grp, E Lansing, MI 48824 USA.
[Acerbi, E.; Aleppo, M.; Alessandria, F.; Alimonti, G.; Ambrosio, G.; Andreazza, A.; Baccaglioni, G.; Banfi, D.; Battistoni, G.; Bellomo, G.; Besana, M. I.; Broggi, F.; Caccia, M.; Carminati, L.; Cavalli, D.; Citterio, M.; Coelli, S.; Costa, G.; Dell'Asta, L.; Fanti, M.; Giugni, D.; Lari, T.; Lazzaro, A.; Mandelli, L.; Mazzanti, M.; Meroni, C.; Montesano, S.; Perini, L.; Pizio, C.; Ragusa, F.; Resconi, S.; Rivoltella, G.; Rossi, L.; Sala, P.; Sorbi, M.; Tartarelli, G. F.; Troncon, C.; Vegni, G.; Volpini, G.] Ist Nazl Fis Nucl, Sez Milano, IT-20133 Milan, Italy.
[Acerbi, E.; Aleppo, M.; Andreazza, A.; Banfi, D.; Bellomo, G.; Besana, M. I.; Caccia, M.; Carminati, L.; Dell'Asta, L.; Fanti, M.; Lazzaro, A.; Montesano, S.; Perini, L.; Pizio, C.; Ragusa, F.; Rivoltella, G.; Rossi, L.; Sorbi, M.; Vegni, G.] Univ Milan, Dipartimento Fis, IT-20133 Milan, Italy.
[Bogouch, A.; Kulchitsky, Y.; Kurochkin, Y. A.; Satsounkevitch, I.; Tsiareshka, P. V.] Natl Acad Sci Belarus, BI Stepanov Phys Inst, Minsk 220072, Byelarus.
[Gilewsky, V.; Kuzhir, P.; Rumiantsev, V.; Starovoitov, P.; Yanush, S.] NC PHEP BSU, Natl Sci & Educ Ctr Particle & High Energy Phys, Minsk 220040, Byelarus.
[Taylor, F. E.] MIT, Dept Phys, Cambridge, MA 02139 USA.
[Azuelos, G.; Banerjee, P.; Bouchami, J.; Davies, M.; Ferland, J.; Gutierrez, A.; Lebel, C.; Leroy, C.; Goia, J. A. Macana; Martin, J. P.; Mehdiyev, R.; Scallon, O.] Univ Montreal, Grp Particle Phys, Montreal, PQ H3C 3J7, Canada.
[Akimov, A. V.; Baranov, S. P.; Gavrilenko, I. L.; Kayumov, F.; Komar, A. A.; Konovalov, S. P.; Mashinistov, R.; Mouraviev, S. V.; Nechaeva, P.; Shmeleva, A.; Snesarev, A. A.; Sulin, V. V.; Tikhomirov, V. O.; Vasilyeva, L.] Acad Sci, PN Lebedev Phys Inst, RU-117924 Moscow, Russia.
[Artamonov, A.; Gorbounov, P. A.; Shatalov, P. B.; Tsukerman, I. I.] Inst Theoret & Expt Phys, RU-117218 Moscow, Russia.
[Belotskiy, K.; Bondarenko, V. G.; Bulekov, O.; Dolgoshein, B. A.; Kantserov, V. A.; Morozov, S. V.; Romaniouk, A.; Smirnov, S. Yu.] Moscow Engn & Phys Inst MEPhI, RU-115409 Moscow, Russia.
[Gladilin, L. K.; Grishkevich, Y. V.; Kramarenko, V. A.; Rud, V. I.; Sivoklokov, S. Yu.; Smirnova, L. N.] Moscow MV Lomonosov State Univ, Skobeltsyn Inst Nucl Phys MSU SINP, Moscow 119991, Russia.
[Adomeit, S.; Biebel, O.; Binder, M.; Calfayan, P.; de Graat, J.; Deile, M.; Duckeck, G.; Ebke, J.; Elmsheuser, J.; Engl, A.; Galea, C.; Genest, M. H.; Hertenberger, R.; Kennedy, J.; Krobath, G.; Kummer, C.; Lambacher, M.; Legger, F.; Lichtnecker, M.; Mameghani, R.; Merkl, D.; Mueller, T. A.; Nunnemann, T.; Rauscher, F.; Ruckert, B.; Sanders, M. P.; Schaile, D.; Serfon, C.; Staude, A.; Walker, R.; Will, J. Z.; Zhuang, X.] Univ Munich, Fak Phys, DE-85748 Garching, Germany.
[Aderholz, M.; Barillari, T.; Beimforde, M.; Bethke, S.; Capriotti, D.; Cortiana, G.; D'Orazio, A.; Dannheim, D.; Dedes, G.; Dietl, H.; Dubbert, J.; Ehrich, T.; Flowerdew, M. J.; Giovannini, P.; Goettfert, T.; Groh, M.; Haefner, P.; Haertel, R.; Hauff, D.; Hott, T.; Jantsch, A.; Kaiser, S.; Kiryunin, A. E.; Kluth, S.; Kortner, O.; Kortner, S.; Kotov, S.; Kroha, H.; Lutz, G.; Macchiolo, A.; Manz, A.; Menke, S.; Mohrdieck-Moeck, S.; Moser, H. G.; Nisius, R.; Oberlack, H.; Pospelov, G. E.; Potrap, I. N.; Rauter, E.; Richter, R.; Salihagic, D.; Schacht, P.; Schieck, J.; Seuster, R.; Stiller, W.; Stonjek, S.; Valderanis, C.; von der Schmitt, H.; von Loeben, J.; Yuan, J.; Zhuravlov, V.] Max Planck Inst Phys & Astrophys, Werner Heisenberg Inst, D-80805 Munich, Germany.
[Shimojima, M.; Tanaka, Y.] Nagasaki Inst Appl Sci, Jp Nagasaki 8510193, Japan.
[Hasegawa, S.; Itoh, Y.; Ohshima, T.; Okumura, Y.; Sugimoto, T.; Takahashi, Y.; Tomoto, M.] Nagoya Univ, Grad Sch Sci, Chikusa Ku, Nagoya, Aichi 4648602, Japan.
[Aloisio, A.; Alviggi, M. G.; Canale, V.; Capasso, L.; Caprio, M.; Carlino, G.; Cevenini, F.; Chiefari, G.; Conventi, F.; de Asmundis, R.; Della Pietra, M.; della Volpe, D.; Doria, A.; Giordano, R.; Iacobucci, G.; Izzo, V.; Merola, L.; Migliaccio, A.; Musto, E.; Patricelli, S.; Rossi, E.; Sekhniaidze, G.] Ist Nazl Fis Nucl, Sez Napoli, IT-80126 Naples, Italy.
[Aloisio, A.; Alviggi, M. G.; Canale, V.; Capasso, L.; Caprio, M.; Cevenini, F.; Chiefari, G.; della Volpe, D.; Giordano, R.; Merola, L.; Migliaccio, A.; Musto, E.; Patricelli, S.; Rossi, E.] Univ Naples Federico II, Dipartimento Sci Fis, IT-80126 Naples, Italy.
[Gorelov, I.; Hoeferkamp, M. R.; Metcalfe, J.; Seidel, S. C.; Toms, K.] Univ New Mexico, Dept Phys & Astron, Albuquerque, NM 87131 USA.
[Consonni, M.; De Groot, N.; Filthaut, F.; Klok, P. F.; Koenig, A. C.; Koetsveld, F.; Magrath, C. A.; Ordonez, G.; Raas, M.; Timmermans, C. J. W. P.] Radboud Univ Nijmegen NIKHEF, Dept Expt High Energy Phys, NL-6525 AJ Nijmegen, Netherlands.
[Bentvelsen, S.; Bobbink, G. J.; Bos, K.; Boterenbrood, H.; Buis, E. J.; Colijn, A. P.; Dankers, R.; Daum, C.; de Jong, P.; De Nooij, L.; Doxiadis, A.; Ferrari, P.; Garitaonandia, H.; Gosselink, M.; Hartjes, F.; Hendriks, P. J.; Hessey, N. P.; Igonkina, O.; Kayl, M. S.; Klous, S.; Kluit, P.; Koffeman, E.; Koutsman, A.; Lee, H.; Linde, F.; Luijckx, G.; Massaro, G.; Mechnich, J.; Muijs, A.; Mussche, I.; Ottersbach, J. P.; Peeters, S. J. M.; Peters, O.; Reichold, A.; Rijpstra, M.; Ruckstuhl, N.; Salamanna, G.; Sandstroem, R.; Scholte, R. C.; Snuverink, J.; Ta, D.; Tsiakiris, M.; Turlay, E.; van der Graaf, H.; van der Kraaij, E.; van der Poel, E.; Van Eijk, B.; van Kesteren, Z.; van Vulpen, I.; Verkerke, W.; Vermeulen, J. C.; Vreeswijk, M.] Nikhef Natl Inst Subatom Phys, NL-1098 XG Amsterdam, Netherlands.
[Bentvelsen, S.; Bobbink, G. J.; Bos, K.; Boterenbrood, H.; Buis, E. J.; Colijn, A. P.; Dankers, R.; Daum, C.; de Jong, P.; De Nooij, L.; Doxiadis, A.; Ferrari, P.; Garitaonandia, H.; Gosselink, M.; Hartjes, F.; Hendriks, P. J.; Hessey, N. P.; Igonkina, O.; Kayl, M. S.; Klous, S.; Kluit, P.; Koffeman, E.; Koutsman, A.; Lee, H.; Linde, F.; Luijckx, G.; Massaro, G.; Mechnich, J.; Muijs, A.; Mussche, I.; Ottersbach, J. P.; Peeters, S. J. M.; Peters, O.; Reichold, A.; Rijpstra, M.; Ruckstuhl, N.; Salamanna, G.; Sandstroem, R.; Scholte, R. C.; Snuverink, J.; Ta, D.; Tsiakiris, M.; Turlay, E.; van der Graaf, H.; van der Kraaij, E.; van der Poel, E.; Van Eijk, B.; van Kesteren, Z.; van Vulpen, I.; Verkerke, W.; Vermeulen, J. C.; Vreeswijk, M.] Univ Amsterdam, NL-1098 XG Amsterdam, Netherlands.
[Calkins, R.; Chakraborty, D.; de Lima, J. G. Rocha; Suhr, C.; Zutshi, V.] No Illinois Univ, Dept Phys, De Kalb, IL 60115 USA.
[Kazanin, V. A.; Kolachev, G. M.; Korol, A.; Kotov, K. Y.; Malyshev, V.; Maslennikov, A. L.; Orlov, I.; Panin, V. N.; Peleganchuk, S. V.; Schamov, A. G.; Skovpen, K.; Soukharev, A.; Talyshev, A.; Tikhonov, Y. A.; Zaytsev, A.] Budker Inst Nucl Phys, RU-630090 Novosibirsk, Russia.
[Budick, B.; Casadei, D.; Cranmer, K.; Djilkibaev, R.; Konoplich, R.; Krasznahorkay, A.; Mincer, A. I.; Nemethy, P.; Neves, R. M.; Shibata, A.; Zhao, L.] NYU, Dept Phys, New York, NY 10003 USA.
[Arms, K. E.; Fernando, W.; Fisher, M. J.; Gan, K. K.; Kagan, H.; Kass, R. D.; Moss, J.; Rahimi, A. M.; Strang, M.] Ohio State Univ, Columbus, OH 43210 USA.
[Mima, S.; Naito, D.; Nakano, I.] Okayama Univ, Fac Sci, Okayama 7008530, Japan.
[Abbott, B.; Gutierrez, P.; Huang, G. S.; Jana, D. K.; Meera-Lebbai, R.; Saleem, M.; Severini, H.; Skubic, P.; Snow, J.; Strauss, M.] Univ Oklahoma, Homer L Dodge Dept Phys & Astron, Norman, OK 73019 USA.
[Abi, B.; Khanov, A.; Khovanskiy, N.; Rizatdinova, F.] Oklahoma State Univ, Dept Phys, Stillwater, OK 74078 USA.
[Kocnar, A.] Palacky Univ, Olomouc 77207, Czech Republic.
[Brau, J. E.; Ptacek, E.; Reinsch, A.; Robinson, M.; Searcy, J.; Shamim, M.; Sinev, N. B.; Strom, D. M.; Torrence, E.] Univ Oregon, Ctr High Energy Phys, Eugene, OR 97403 USA.
[Abreu, H.; Arnault, C.; Auge, E.; Barrillon, P.; Benoit, M.; Bernat, P.; Binet, S.; Blanchard, J. -B.; Bourdarios, C.; Breton, D.; Collard, C.; De la Taille, C.; De Regie, J. B. De Vivie; Diglio, S.; Dudziak, F.; Duflot, L.; Escalier, M.; Falou, A. C.; Fayard, L.; Fournier, D.; Grivaz, J. -F.; Heller, M.; Henrot-Versille, S.; Hrivnac, J.; Iconomidou-Fayard, L.; Kado, M.; Lechowski, M.; Lounis, A.; Makovec, N.; Matricon, P.; Niedercorn, F.; Perus, P.; Poggioli, L.; Puzo, P.; Rousseau, D.; Ruan, X.; Rybkin, G.; Schaffer, A. C.; Serin, L.; Simion, S.; Tanaka, R.; Veillet, J. J.; Vukotic, I.; Wicek, F.; Zerwas, D.] Univ Paris 11, LAL, IN2P3, CNRS, Orsay, France.
[Hanagaki, K.; Hirose, M.; Meguro, T.; Nomachi, M.; Sugaya, Y.] Osaka Univ, Grad Sch Sci, Osaka 5600043, Japan.
[Bugge, L.; Buran, T.; Cameron, D.; Gjelsten, B. K.; Lund, E.; Ould-Saada, F.; Pajchel, K.; Pylypchenko, Y.; Read, A. L.; Rohne, O.; Samset, B. H.; Stapnes, S.; Strandlie, A.; Taga, A.] Univ Oslo, Dept Phys, NO-0316 Oslo 3, Norway.
[Abdesselam, A.; Apolle, R.; Barr, A. J.; Beauchemin, P. H.; Boddy, C. R.; Brett, N. D.; Buchanan, J.; Buckingham, R. M.; Buira-Clark, D.; Coe, P.; Coniavitis, E.; Cooper-Sarkar, A. M.; Dehchar, M.; Dennis, C.; Doglioni, C.; Farrington, S. M.; Ferrando, J.; Fiascaris, M.; Fopma, J.; Gallas, E. J.; Gibson, S. M.; Gilbert, L. M.; Grewal, A.; Gwenlan, C.; Hawes, B. M.; Hindson, D.; Holmes, A.; Horton, K.; Howell, D. F.; Huffman, T. B.; Issever, C.; Jones, M.; Karagoz, M.; Kirsch, G. P.; Kundu, N.; Larner, A.; Lau, W.; Lavorato, A.; Liang, Z.; Livermore, S. S. A.; Loken, J.; Lynn, J.; Mattravers, C.; Mermod, P.; Mitra, A.; Nickerson, R. B.; Ottewell, B.; Shield, P.; Tseng, J. C. -L.; Vertogardov, L.; Viehhauser, G. H. A.; Wastie, R.; Weidberg, A. R.; Whitehead, S. R.; Yang, S.] Univ Oxford, Dept Phys, Oxford OX1 3RH, England.
[Bellomo, M.; Cambiaghi, M.; Conta, C.; Ferrari, R.; Franchino, S.; Fraternali, M.; Gaudio, G.; Goggi, V.; Lanza, A.; Livan, M.; Negri, A.; Polesello, G.; Prata, M.; Rebuzzi, D. M.; Rimoldi, A.; Uslenghi, M.; Vercesi, V.] Ist Nazl Fis Nucl, Sez Pavia, IT-27100 Pavia, Italy.
[Cambiaghi, M.; Conta, C.; Franchino, S.; Fraternali, M.; Goggi, V.; Livan, M.; Negri, A.; Prata, M.; Rebuzzi, D. M.; Rimoldi, A.; Uslenghi, M.] Univ Pavia, Dipartimento Fis Nucl & Teor, IT-27100 Pavia, Italy.
[Alison, J.; Degenhardt, J.; Donega, M.; Dressnandt, N.; Fratina, S.; Hance, M.; Hines, E.; Jackson, B.; Keener, P. T.; Kroll, J.; Kunkle, J.; LeGeyt, B. C.; Lipeles, E.; Martin, F. F.; Munar, A.; Newcomer, F. M.; Olivito, D.; Ospanov, R.; Reece, R.; Stahlman, J.; Thomson, E.; Van Berg, R.; Wagner, P.; Williams, H. H.] Univ Penn, Dept Phys, High Energy Phys Grp, Philadelphia, PA 19104 USA.
[Fedin, O. L.; Gratchev, V.; Grebenyuk, O. G.; Maleev, V. P.; Nesterov, S. Y.; Ryabov, Y. F.; Schegelsky, V. A.; Sedykh, E.; Seliverstov, D. M.; Zalite, Yo. K.] Petersburg Nucl Phys Inst, RU-188300 Gatchina, Russia.
[Bertolucci, F.; Cascella, M.; Cavasinni, V.; Del Prete, T.; Dotti, A.; Francavilla, P.; Giangiobbe, V.; Lupi, A.; Mazzoni, E.; Roda, C.; Sarri, F.; Zenonos, Z.] Ist Nazl Fis Nucl, Sez Pisa, IT-56127 Pisa, Italy.
[Bertolucci, F.; Cascella, M.; Cavasinni, V.; Del Prete, T.; Dotti, A.; Francavilla, P.; Giangiobbe, V.; Lupi, A.; Mazzoni, E.; Roda, C.; Sarri, F.; Zenonos, Z.] Univ Pisa, Dipartimento Fis E Fermi, IT-56127 Pisa, Italy.
[Boudreau, J.; Boulahouache, C.; Cleland, W.; Haboubi, G.; Kittelmann, T.; Mueller, J.; Paolone, V.; Prieur, D.; Savinov, V.; Tsulaia, V.; Wendler, S.; Yoosoofmiya, R.] Univ Pittsburgh, Dept Phys & Astron, Pittsburgh, PA 15260 USA.
[Aguilar-Saavedra, J. A.; Amorim, A.; Anjos, N.; Benincasa, G. P.; Carvalho, J.; Castro, N. F.; Conde Muino, P.; Wemans, A. Do Valle; Fernandes, B.; Fiolhais, M. C. N.; Gomes, A.; Jorge, P. M.; Lopes, L.; Miguens, J. Machado; Martins, P. J. Magalhaes; Maio, A.; Maneira, J.; Morais, A.; Oliveira, M.; Onofre, A.; Palma, A.; Pina, J.; Pinto, B.; Santos, H.; Saraiva, J. G.; Silva, J.; Soares, M.; Veloso, F.; Wolters, H.] Lab Instrumentacao & Fis Expt Particulas LIP, PT-1000149 Lisbon, Portugal.
[Aguilar-Saavedra, J. A.; Castro, N. F.] Univ Granada, Dept Fis Teor & Cosmos, E-18071 Granada, Spain.
[Aguilar-Saavedra, J. A.; Castro, N. F.] CAFPE, E-18071 Granada, Spain.
[Bazalova, M.; Bohm, J.; Chudoba, J.; Gallus, P.; Gunther, J.; Havranek, M.; Hruska, I.; Jahoda, M.; Juranek, V.; Kepka, O.; Kupco, A.; Kus, V.; Kvasnicka, O.; Lipinsky, L.; Lokajicek, M.; Marcisovsky, M.; Mikestikova, M.; Myska, M.; Nemecek, S.; Panuskova, M.; Popule, J.; Ruzicka, P.; Schovancova, J.; Sicho, P.; Staroba, P.; Stastny, J.; Tasevsky, M.; Tic, T.; Tomasek, L.; Tomasek, M.; Valenta, J.; Vrba, V.] Acad Sci Czech Republic, Inst Phys, CZ-18221 Prague 8, Czech Republic.
[Davidek, T.; Dolejsi, J.; Dolezal, Z.; Drasal, Z.; Kodys, P.; Leitner, R.; Novakova, J.; Reznicek, P.; Spousta, M.; Strachota, P.; Suk, M.; Sykora, T.; Tas, P.; Valkar, S.; Vorobel, V.; Wilhelm, I.] Charles Univ Prague, Fac Math & Phys, Inst Particle & Nucl Phys, CZ-18000 Prague 8, Czech Republic.
[Augsten, K.; Holy, T.; Horazdovsky, T.; Hubacek, Z.; Jakubek, J.; Kohout, Z.; Kral, V.; Krejci, F.; Pospisil, S.; Simak, V.; Slavicek, T.; Smolek, K.; Sodomka, J.; Solar, M.; Solc, J.; Sopko, V.; Sopko, B.; Stekl, I.; Turecek, D.; Vacek, V.; Vlasak, M.; Vokac, P.] Czech Tech Univ, CZ-16635 Prague 6, Czech Republic.
[Ammosov, V. V.; Borisov, A.; Bozhko, N. I.; Denisov, S. P.; Evdokimov, V. N.; Fakhrutdinov, R. M.; Fenyuk, A. B.; Gapienko, V. A.; Golovnia, S. N.; Gorokhov, S. A.; Goryachev, V. N.; Gushchin, V. N.; Ivashin, A. V.; Kabachenko, V. V.; Karyukhin, A. N.; Kholodenko, A. G.; Kiver, A. M.; Kopikov, S. V.; Koreshev, V.; Korotkov, V. A.; Kozhin, A. S.; Lapin, V. V.; Larionov, A. V.; Levitski, M. S.; Makouski, M.; Minaenko, A. A.; Mitrofanov, G. Y.; Moisseev, A. M.; Myagkov, A. G.; Nikolaenko, V.; Pleskach, A. V.; Ryadovikov, V.; Solodkov, A. A.; Solovyanov, O. V.; Starchenko, E. A.; Sviridov, Yu. M.; Vorobiev, A. P.; Vovenko, A. S.; Zaets, V. G.; Zaitsev, A. M.; Zenin, A. V.; Zenin, O.; Zmouchko, V. V.] State Res Ctr, Inst High Energy Phys, Protvino 142281, Moscow Region, Russia.
[Adye, T.; Baines, J. T.; Barnett, B. M.; Botterill, D.; Burke, S.; Clifft, R. W.; Dallison, S. J.; Dewhurst, A.; Emeliyanov, D.; Fisher, S. M.; Gallop, B. J.; Gee, C. N. P.; Gillman, A. R.; Greenfield, D.; Hart, J. C.; Haywood, S. J.; Kirk, J.; McCubbin, N. A.; McMahon, S. J.; Middleton, R. P.; Murray, W. J.; Norton, P. R.; Phillips, P. W.; Qian, W.; Sankey, D. P. C.; Scott, W. G.; Strube, J.; Tyndel, M.; Villani, E. G.; Weber, M.; Wickens, F. J.; Wielers, M.] Rutherford Appleton Lab, Sci & Technol Facil Council, Didcot OX11 0QX, Oxon, England.
[Benslama, K.; Ming, Y.; Ortega, E. O.] Univ Regina, Dept Phys, Regina, SK S4S 0A2, Canada.
[Tanaka, S.] Ritsumeikan Univ, Shiga 5258577, Japan.
[Anulli, F.; Bagnaia, P.; Bangert, A.; Biglietti, M.; Bini, C.; Boaretto, C.; Borroni, S.; Caioi, R.; Cavallari, A.; Ciapetti, G.; De Pedis, D.; De Salvo, A.; De Zorzi, G.; Di Domenico, A.; Dionisi, C.; Falciano, S.; Gauzzi, P.; Gentile, S.; Giagu, S.; Lacava, F.; Luci, C.; Luminari, L.; Maiani, C.; Marzano, F.; Mirabelli, G.; Moch, M.; Nisati, A.; Pasqualucci, E.; Petrolo, E.; Pontecorvo, L.; Rescigno, M.; Tehrani, F. Safai; Camillocci, E. Solfaroli; Spila, F.; Valente, P.; Vari, R.; Veneziano, S.; Zanello, L.] Ist Nazl Fis Nucl, Sez Roma, IT-00185 Rome, Italy.
[Bagnaia, P.; Biglietti, M.; Bini, C.; Boaretto, C.; Borroni, S.; Caioi, R.; Cavallari, A.; Ciapetti, G.; De Zorzi, G.; Di Domenico, A.; Dionisi, C.; Gauzzi, P.; Gentile, S.; Giagu, S.; Lacava, F.; Luci, C.; Maiani, C.; Moch, M.; Tehrani, F. Safai; Camillocci, E. Solfaroli; Spila, F.; Zanello, L.] Univ Roma La Sapienza, Dipartimento Fis, IT-00185 Rome, Italy.
[Aielli, G.; Camarri, P.; Cardarelli, R.; Cattani, G.; Di Ciaccio, A.; Di Nardo, R.; Di Simone, A.; Liberti, B.; Marchese, F.; Paoloni, A.; Salamon, A.; Santonico, R.] Ist Nazl Fis Nucl, Sez Roma Tor Vergata, IT-00133 Rome, Italy.
[Aielli, G.; Camarri, P.; Cattani, G.; Di Ciaccio, A.; Di Nardo, R.; Di Simone, A.; Marchese, F.; Paoloni, A.; Santonico, R.] Univ Roma Tor Vergata, Dipartimento Fis, IT-00133 Rome, Italy.
[Bacci, C.; Baroncelli, A.; Branchini, P.; Ceradini, F.; Di Luise, S.; Farilla, A.; Graziani, E.; Iodice, M.; Orestano, D.; Passeri, A.; Pastore, F.; Petrucci, F.; Ruggieri, F.; Spiriti, E.; Spogli, L.; Stanescu, C.; Tonazzo, A.] Ist Nazl Fis Nucl, Sez Roma, IT-00146 Rome, Italy.
[Bacci, C.; Ceradini, F.; Di Luise, S.; Orestano, D.; Pastore, F.; Petrucci, F.; Spogli, L.; Tonazzo, A.] Univ Roma Tre, Dipartimento Fis, IT-00146 Rome, Italy.
[Benchekroun, D.; Chafaq, A.; Gouighri, M.; Goujdami, D.; Hoummada, A.] Univ Hassan 2, Reseau Univ Phys Hautes Energies RUPHE, Fac Sci Ain Chock, Ma Casablanca, Morocco.
Ctr Natl Energie Sci Tech Nucl CNESTEN, Rabat 10001, Morocco.
[Derkaoui, J. E.; Ouchrif, M.] Univ Mohamed Premier, LPTPM, Fac Sci, Oujda 60000, Morocco.
[El Moursli, R. Cherkaoui; Ghazlane, H.] Univ Mohammed 5, Fac Sci, Rabat 10000, Morocco.
[Bachacou, H.; Bauer, F.; Besson, N.; Boonekamp, M.; Chevalier, L.; Chevallier, F.; Ernwein, J.; Etienvre, A. I.; Formica, A.; Gautard, V.; Giraud, P. F.; Guyot, C.; Hassani, S.; Kozanecki, W.; Lancon, E.; Laporte, J. F.; Le Menedeu, E.; Legendre, M.; Lenzi, B.; Mansoulie, B.; Marzin, A.; Meyer, J. -P.; Nicolaidou, R.; Ouraou, A.; Pomarede, D. M.; Ponsot, P.; Resende, B.; Royon, C. R.; Schune, Ph.; Schwindling, J.; Virchaux, M.] CEA, DSM IRFU, FR-91191 Gif Sur Yvette, France.
[Bangert, A.; Chouridou, S.; Damiani, D. S.; Dubbs, T.; Fowler, K.; Grillo, A. A.; Hansl-Kozanecka, T.; Hare, G. A.; Litke, A. M.; Lockman, W. S.; Manning, P. M.; Mitrevski, J.; Nielsen, J.; Sadrozinski, H. F. -W.; Schumm, B. A.; Seiden, A.; Spencer, E.; Taylor, G.] Univ Calif Santa Cruz, Santa Cruz Inst Particle Phys, Santa Cruz, CA 95064 USA.
[Daly, C. H.; Forbush, D. A.; Goussiou, A. G.; Griffiths, J.; Harris, O. M.; Kuykendall, W.; Lubatti, H. J.; Mockett, P.; Policicchio, A.; Rosati, S.; Rothberg, J.; Twomey, M. S.; Ventura, D.; Verducci, M.; Wang, J. C.; Watts, G.; Zhao, T.] Univ Washington, Dept Phys, Seattle, WA 98195 USA.
[Anastopoulos, C.; Booth, C. N.; Booth, P.; Costanzo, D.; Donszelmann, T. Cuhadar; Dawson, I.; Duxfield, R.; Harper, R.; Hodgkinson, M. C.; Hodgson, R.; Johansson, P.; Korolkova, E. V.; Lehto, M.; Mayne, A.; Morgan, D.; Nicolas, L.; Owen, S.; Paganis, E.; Shaw, K.; Sutton, M. R.; Tovey, D. R.; Tsionou, D.; Xu, D.] Univ Sheffield, Dept Phys & Astron, Sheffield S3 7RH, S Yorkshire, England.
[Hasegawa, Y.; Ohshita, H.; Takeshita, T.] Shinshu Univ, Dept Phys, Fac Sci, Matsumoto, Jp Nagano 3908621, Japan.
[Buchholz, R.; Czirr, H.; Fleck, I.; Gaur, B.; Grybel, K.; Holder, M.; Ibragimov, I.; Rammes, M.; Sipica, V.; Stahl, T.; Walkowiak, W.; Werthenbach, U.; Ziolkowski, M.] Univ Siegen, Fachbereich Phys, D-57068 Siegen, Germany.
[Dawe, E.; Godfrey, J.; Komaragiri, J. R.; O'Neil, D. C.; Petteni, M.; Schouten, D.; Stelzer, B.; Trottier-McDonald, M.] Simon Fraser Univ, Dept Phys, Ca Burnaby, BC V5A 1S6, Canada.
[Aracena, I.; Asai, M.; Barklow, T.; Bartoldus, R.; Bawa, H. S.; Butler, B.; Gao, Y. S.; Grenier, P.; Haas, A.; Hansson, P.; Horn, C.; Jackson, P.; Kenney, C. J.; Kim, P. C.; Kocian, M.; Koi, T.; Lowe, A. J.; Miller, D. W.; Mount, R.; Nelson, S.; Nelson, T. K.; Salnikov, A.; Schwartzman, A.; Silverstein, D.; Smith, D.; Su, D.; Wilson, M. G.; Wittgen, M.; Wright, D.; Young, C.] SLAC Natl Accelerator Lab, Stanford, CA 94309 USA.
[Batkova, L.; Federic, P.; Lovas, L.; Pecsy, M.; Stavina, P.; Sykora, I.; Tokar, S.; Zenis, T.; Zilka, B.] Comenius Univ, Fac Math Phys & Informat, SK-84248 Bratislava, Slovakia.
[Antos, J.; Bruncko, D.; Ferencei, J.; Kladiva, E.; Seman, M.; Strizenec, P.] Slovak Acad Sci, Inst Expt Phys, Dept Subnucl Phys, SK-04353 Kosice, Slovakia.
Univ Johannesburg, Dept Phys, ZA-2006 Johannesburg, South Africa.
[Vickey, T.] Univ Witwatersrand, Sch Phys, ZA-2050 Johannesburg, South Africa.
[Asman, B.; Bohm, C.; Clement, C.; Eriksson, D.; Geerstedt, K.; Hellman, S.; Hidvegi, A.; Holmgren, S. O.; Johansen, M.; Johansson, K. E.; Jon-And, K.; Lesser, J.; Milstead, D. A.; Moa, T.; Nordkvist, B.; Ohm, C. C.; Ramstedt, M.; Sellden, B.; Silverstein, S. B.; Sjoelin, J.; Strandberg, S.; Tylmad, M.; Yang, Z.] Stockholm Univ, Dept Phys, SE-10691 Stockholm, Sweden.
[Asman, B.; Clement, C.; Geerstedt, K.; Hellman, S.; Hidvegi, A.; Johansen, M.; Jon-And, K.; Milstead, D. A.; Moa, T.; Nordkvist, B.; Ohm, C. C.; Ramstedt, M.; Sjoelin, J.; Strandberg, S.; Tylmad, M.; Yang, Z.] Oskar Klein Ctr, SE-10691 Stockholm, Sweden.
[Grahn, K. -J.; Lund-Jensen, B.] Royal Inst Technol KTH, Dept Phys, SE-10691 Stockholm, Sweden.
[Ahmad, A.; Caputo, R.; Deluca, C.; DeWilde, B.; Engelmann, R.; Farley, J.; Goodson, J. J.; Grassi, V.; Gray, J. A.; Grimm, K.; Hobbs, J.; Jia, J.; Khodinov, A.; Khramov, E.; McCarthy, R. L.; Rijssenbeek, M.; Schamberger, R. D.; Stupak, J.; Tsybychev, D.; Yurkewicz, A.] SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA.
[De Santo, A.; Potter, C. J.; Salvatore, F.] Univ Sussex, Dept Phys & Astron, Brighton BN1 9QH, E Sussex, England.
[Lee, J. S. H.; Patel, N.; Peak, L. S.; Saavedra, A. F.; Varvell, K. E.; Waugh, A. T.; Yabsley, B.] Univ Sydney, Sch Phys, Au Sydney, NSW 2006, Australia.
[Chu, M. L.; Hou, S.; Lee, S. C.; Lin, S. C.; Liu, D.; Mazini, R.; Meng, Z.; Ren, Z. L.; Soh, D. A.; Teng, P. K.; Wang, S. M.; Weng, Z.; Zhong, J.; Zhou, Y.] Acad Sinica, Inst Phys, Tw Taipei 11529, Taiwan.
[Behar Harpaz, S.; Ben Ami, S.; Bressler, S.; Hershenhorn, A. D.; Kajomovitz, E.; Landsman, H.; Lifshitz, R.; Rozen, Y.; Tarem, S.; Tennenbaum-Katan, Y. D.; Vallecorsa, S.] Technion Israel Inst Technol, Dept Phys, IL-32000 Technion, Il Haifa, Israel.
[Abramowicz, H.; Alexander, G.; Amram, N.; Bella, G.; Benary, O.; Benhammou, Y.; Brodet, E.; Etzion, E.; Gershon, A.; Ginzburg, J.; Guttman, N.; Hod, N.; Kreisel, A.; Mahalalel, Y.; Munwes, Y.; Oren, Y.; Reinherz-Aronis, E.; Sadeh, I.; Silver, Y.; Soffer, A.; Urkovsky, E.] Tel Aviv Univ, Raymond & Beverly Sackler Sch Phys & Astron, IL-69978 Tel Aviv, Israel.
[Iliadis, D.; Kordas, K.; Nomidis, I.; Petridis, A.; Petridou, C.; Sampsonidis, D.] Aristotle Univ Thessaloniki, Fac Sci, Dept Phys, Div Nucl & Particle Phys, GR-54124 Thessaloniki, Greece.
[Akimoto, G.; Asai, S.; Azuma, Y.; Dohmae, T.; Imori, M.; Isobe, T.; Kanaya, N.; Kaneda, M.; Kataoka, Y.; Kawamoto, T.; Kessoku, K.; Kobayashi, T.; Kubota, T.; Mashimo, T.; Masubuchi, T.; Matsumoto, H.; Matsunaga, H.; Nakamura, K.; Ninomiya, Y.; Nomoto, H.; Oda, S.; Okuyama, T.; Sakamoto, H.; Tanaka, J.; Terashi, K.; Ueda, I.; Yamamoto, S.; Yamamura, T.; Yamazaki, T.] Univ Tokyo, Int Ctr Elementary Particle Phys, Bunkyo Ku, Jp Tokyo 1130033, Japan.
[Akimoto, G.; Asai, S.; Azuma, Y.; Dohmae, T.; Imori, M.; Isobe, T.; Kanaya, N.; Kaneda, M.; Kataoka, Y.; Kawamoto, T.; Kessoku, K.; Kobayashi, T.; Kubota, T.; Mashimo, T.; Masubuchi, T.; Matsumoto, H.; Matsunaga, H.; Nakamura, K.; Ninomiya, Y.; Nomoto, H.; Oda, S.; Okuyama, T.; Sakamoto, H.; Tanaka, J.; Terashi, K.; Ueda, I.; Yamamoto, S.; Yamamura, T.; Yamazaki, T.] Univ Tokyo, Dept Phys, Bunkyo Ku, Jp Tokyo 1130033, Japan.
[Bratzler, U.; Fukunaga, C.] Tokyo Metropolitan Univ, Grad Sch Sci & Technol, Tokyo 1920397, Japan.
[Jinnouchi, O.; Kuze, M.] Tokyo Inst Technol, Meguro Ku, Tokyo 1528551, Japan.
[Bailey, D. C.; Bain, T.; Beare, B.; Borisov, A.; Brelier, B.; Carron Montero, S.; Cheung, S. L.; Deviveiros, P. O.; Dhaliwal, S.; Farooque, T.; Fatholahzadeh, B.; Gibson, A.; Groer, L. S.; Guo, B.; Jankowski, E.; Joo, K. K.; Knecht, N. S.; Krieger, P.; Le Maner, C.; Martens, F. K.; Mayer, J. K.; Orr, R. S.; Rezvani, R.; Rosenbaum, G. A.; Sandhu, P.; Savard, P.; Sinervo, P.; Spreitzer, T.; Tardif, D.; Teuscher, R. J.; Thompson, P. D.; Trischuk, W.] Univ Toronto, Dept Phys, Toronto, ON M5S 1A7, Canada.
[Canepa, A.; Chekulaev, S. V.; Fortin, D.; Kurchaninov, L. L.; Losty, M. J.; Nugent, I. M.; Oram, C. J.; Qing, D.; Stelzer-Chilton, O.; Tafirout, R.; Trigger, I. M.] TRIUMF, Vancouver, BC V6T 2A3, Canada.
[Idarraga, J.; Taylor, W.] York Univ, Dept Phys & Astron, Toronto, ON M3J 1P3, Canada.
[Hara, K.; Kim, S. H.; Kurata, M.; Nagai, K.; Ukegawa, F.] Univ Tsukuba, Inst Pure & Appl Sci, Tsukuba, Jp Ibaraki 3058571, Japan.
[Hamilton, S.; Mann, W. A.; Napier, A.; Rolli, S.; Sliwa, K.; Todorova-Nova, S.] Tufts Univ, Ctr Sci & Technol, Medford, MA 02155 USA.
[Losada, M.; Loureiro, K. F.; Navas, L. Mendoza; Navarro, G.; Romero, D. A. Roa; Rodriguez, D.] Univ Antonio Marino, Ctr Invest, Bogota, Colombia.
[Avolio, G.; Benedict, B. H.; Bold, T.; Bondioli, M.; Ciobotaru, M. D.; Corso-Radu, A.; Deng, J. J.; Dobson, M.; Eschrich, I. Gough; Grabowska-Bold, I.; Hawkins, D.; Kolos, S.; Lankford, A. J.; Garcia, R. Murillo; Okawa, H.; Porter, R.; Schernau, M.; Stancu, S. N.; Taffard, A.; Toggerson, B.; Unel, G.; Werth, M.; Wheeler-Ellis, S. J.; Whiteson, D.; Zhou, N.] Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA.
[Acharya, B. S.; Cauz, D.; Cobal, M.; De Lotto, B.; De Sanctis, U.; Del Papa, C.; Giordani, M. P.; Pinamonti, M.; Suruliz, K.] Ist Nazl Fis Nucl, Grp Collegato Udine, IT-34014 Trieste, Italy.
[Acharya, B. S.; Suruliz, K.] Abdus Salaam Int Ctr Theoret Phys, IT-34014 Trieste, Italy.
[Cauz, D.; Cobal, M.; De Lotto, B.; De Sanctis, U.; Del Papa, C.; Giordani, M. P.; Pinamonti, M.] Univ Udine, Dipartimento Fis, IT-33100 Udine, Italy.
[Benekos, N.; Coggeshall, J.; Cortes-Gonzalez, A.; Errede, D.; Errede, S.; Khandanyan, H.; Lie, K.; Liss, T. M.; McCarn, A.; Neubauer, M. S.; Vichou, I.] Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
[Belanger-Champagne, C.; Brenner, R.; Buszello, C. R.; Ekelof, T.; Ellert, M.; Ferrari, A.; Hansen, C. J.] Uppsala Univ, Dept Phys & Astron, SE-75120 Uppsala, Sweden.
[Amoros, G.; Cabrera Urban, S.; Castillo Gimenez, V.; Costa, M. J.; Escobar, C.; Ferrer, A.; Fuster, J.; Garcia, C.; de la Hoz, S. Gonzalez; Jimenez, Y. Hernandez; Higon-Rodriguez, E.; Quiles, A. Irles; Kaci, M.; Lacasta, C.; Lacuesta, V. R.; Marti-Garcia, S.; Minano, M.; Mitsou, V. A.; Moles-Valls, R.; Llacer, M. Moreno; Garcia, E. Oliver; Garcia-Estan, M. T. Perez; Ros, E.; Salt, J.; Solans, C. A.; Sanchez, J.; Pastor, E. Torro; Gallego, E. Valladolid; Ferrer, J. A. Valls; Perez, M. Villaplana; Vos, M.; Wildauer, A.] Ctr Mixto UVEG CSIC, Inst Fis Corpuscular IFIC, ES-46071 Valencia, Spain.
[Amoros, G.; Cabrera Urban, S.; Castillo Gimenez, V.; Costa, M. J.; Escobar, C.; Ferrer, A.; Fuster, J.; Garcia, C.; de la Hoz, S. Gonzalez; Jimenez, Y. Hernandez; Higon-Rodriguez, E.; Quiles, A. Irles; Kaci, M.; Lacasta, C.; Lacuesta, V. R.; Marti-Garcia, S.; Minano, M.; Mitsou, V. A.; Moles-Valls, R.; Llacer, M. Moreno; Garcia, E. Oliver; Garcia-Estan, M. T. Perez; Ros, E.; Salt, J.; Solans, C. A.; Sanchez, J.; Pastor, E. Torro; Gallego, E. Valladolid; Ferrer, J. A. Valls; Perez, M. Villaplana; Vos, M.; Wildauer, A.] Univ Valencia, Dept Fis At Mol & Nucl, Dept Eng Elect, Bellaterra 08193, Spain.
[Amoros, G.; Cabrera Urban, S.; Castillo Gimenez, V.; Costa, M. J.; Escobar, C.; Ferrer, A.; Fuster, J.; Garcia, C.; de la Hoz, S. Gonzalez; Jimenez, Y. Hernandez; Higon-Rodriguez, E.; Quiles, A. Irles; Kaci, M.; Lacasta, C.; Lacuesta, V. R.; Marti-Garcia, S.; Minano, M.; Mitsou, V. A.; Moles-Valls, R.; Llacer, M. Moreno; Garcia, E. Oliver; Garcia-Estan, M. T. Perez; Ros, E.; Salt, J.; Solans, C. A.; Sanchez, J.; Pastor, E. Torro; Gallego, E. Valladolid; Ferrer, J. A. Valls; Perez, M. Villaplana; Vos, M.; Wildauer, A.] Inst Microelect Barcelona IMB CNM CSIC, Bellaterra 08193, Spain.
[Axen, D.; Gay, C.; Loh, C. W.; Mills, W. J.; Muir, A.; Swedish, S.; Viel, S.] Univ British Columbia, Dept Phys, Ca Vancouver, BC V6T 1Z1, Canada.
[Astbury, A.; Banerjee, Sw.; Bansal, V.; Berghaus, F.; Courneyea, L.; Fincke-Keeler, M.; Keeler, R.; Kowalewski, R.; Lefebvre, M.; Lessard, J. -R.; McPherson, R. A.; Plamondon, M.; Poffenberger, P.; Sobie, R.; Taylor, R. P.] Univ Victoria, Dept Phys & Astron, Victoria, BC V8W 3P6, Canada.
[Kimura, N.; Yorita, K.] Waseda Univ, WISE, Shinjuku Ku, Tokyo 1698555, Japan.
[Alon, R.; Duchovni, E.; Gabizon, O.; Gross, E.; Klier, A.; Lellouch, D.; Levinson, L. J.; Mikenberg, G.; Milov, A.; Milstein, D.; Silbert, O.; Smakhtin, V.; Vitells, O.] Weizmann Inst Sci, Dept Particle Phys, IL-76100 Rehovot, Israel.
[Asfandiyarov, R.; Carrillo Montoya, G. D.; Castaneda Hernandez, A. M.; Castaneda-Miranda, E.; Chen, X.; Dos Anjos, A.; Fang, Y.; Fasching, D.; Ferguson, D.; Castillo, L. R. Flores; Gonzalez, S.; Gutzwiller, O.; Jared, R. C.; Ji, H.; Cheong, A. Leung Fook; Li, H.; Ma, L. L.; Garcia, B. R. Mellado; Pan, Y. B.; Pataraia, S.; Morales, M. I. Pedraza; Peng, H.; Poveda, J.; Quayle, W. B.; Sarangi, T.; Wang, H.; Wiedenmann, W.; Wu, S. L.; Xu, N.; Zhu, Y.; Zobernig, G.] Univ Wisconsin, Dept Phys, Madison, WI 53706 USA.
[Fleischmann, P.; Liebig, W.; Meyer, J.; Redelbach, A.; Stroehmer, R.; Trefzger, T.] Univ Wurzburg, Inst Phys, D-97074 Wurzburg, Germany.
[Barisonzi, M.; Becks, K. H.; Boek, J.; Braun, H. M.; Dopke, J.; Drees, J.; Flick, T.; Gerlach, P.; Glitza, K. W.; Gorfine, G.; Grah, C.; Hamacher, K.; Harenberg, T.; Henss, T.; Hirschbuehl, D.; Imhaeuser, M.; Kalinin, S.; Kersten, S.; Kind, P.; Kootz, A.; Kuhl, T.; Lenz, T.; Lenzen, G.; Lepidis, J.; Maettig, P.; Mechtel, M.; Sandhoff, M.; Sandvoss, S.; Sanny, B.; Sartisohn, G.; Schroers, M.; Schultes, J.; Siebel, A.; Sturm, P.; Thadome, J.; Voss, T. T.; Wagner, W.; Wahlen, H.; Zeitnitz, C.] Berg Univ Wuppertal, Fachbereich C, D-42097 Wuppertal, Germany.
[Adelman, J.; Atoian, G.; Auerbach, B.; Baker, O. K.; Almenar, C. Cuenca; Czyczula, Z.; Demers, S.; Golling, T.; Hsu, P. J.; Kaplan, B.; Kastoryano, M.; Lockwitz, S.; Loginov, A.; Martin, A. J.; Poblaguev, A.; Schmidt, M. P.; Thioye, M.; Tipton, P.; Wall, R.; Zeller, M.] Yale Univ, Dept Phys, New Haven, CT 06520 USA.
[Grabski, V.; Hakobyan, H.] Yerevan Phys Inst, AM-375036 Yerevan, Armenia.
TRIUMF, ATLAS Canada Tier Data Ctr 1, Vancouver, BC V6T 2A3, Canada.
Forschungszentrum Karlsruhe, GridKA Tier FZK 1, SCC, D-76344 Eggenstein Leopoldshafen, Germany.
Univ Autonoma Barcelona, E-08193 Barcelona, Spain.
[Biscarat, C.; Cogneras, E.; Rahal, G.] CNRS, IN2P3, Ctr Calcul, F-69622 Villeurbanne, France.
INFN CNAF, I-40127 Bologna, Italy.
NORDUnet AS, Nord Data Grid Facil, DK-2770 Kastrup, Denmark.
SARA Reken en Netwerkdiensten, NL-1098 XG Amsterdam, Netherlands.
Acad Sinica, Inst Phys, Taipei 11529, Taiwan.
Rutherford Appleton Lab, UK T1 RAL Tier 1, Sci & Technol Facil Council, Didcot OX11 0QX, Oxon, England.
RHIC, New York, NY 11973 USA.
Brookhaven Natl Lab, ATLAS Comp Facil, Dept Phys, New York, NY 11973 USA.
[Amorim, A.; Jorge, P. M.; Miguens, J. Machado; Morais, A.; Palma, A.; Pinto, B.] Univ Lisbon, Fac Ciencias, P-1699 Lisbon, Portugal.
CPPM, Marseille, France.
TRIUMF, Vancouver, BC V6T 2A3, Canada.
AGH Univ Sci & Technol, FPACS, Krakow, Poland.
Univ Coimbra, Dept Phys, P-3000 Coimbra, Portugal.
Univ Napoli Parthenope, IT-80133 Naples, Italy.
Louisiana Tech Univ, Ruston, LA 71272 USA.
Calif State Univ Fresno, Fresno, CA 93740 USA.
AGH Univ Sci & Technol, FPACS, Krakow, Poland.
[Gray, H. M.; Mateos, D. Lopez; Marshall, Z.; Perez, K.] CALTECH, Pasadena, CA 91125 USA.
Louisiana Tech Univ, Ruston, LA 71270 USA.
Univ Montreal, Montreal, PQ, Canada.
[Haller, J.; Kono, T.; Terwort, M.; Wildt, M. A.] Univ Hamburg, Inst Expt Phys, Hamburg, Germany.
[Kolos, S.] Petersburg Nucl Phys Inst, Gatchina, Russia.
[Liang, Z.; Soh, D. A.] Sun Yat Sen Univ, Sch Phys & Engn, Guangzhou, Guangdong, Peoples R China.
[Liu, D.; Meng, Z.] Shandong Univ, Sch Phys, Jinan 250100, Peoples R China.
[Onofre, A.] Univ Minho, Dept Fis, P-4719 Braga, Portugal.
[Purohit, M.] Univ S Carolina, Dept Phys & Astron, Columbia, SC 29208 USA.
[Pasztor, G.; Toth, J.] KFKI Res Inst Particle & Nucl Phys, Budapest, Hungary.
RP Aad, G (reprint author), Univ Freiburg, Fak Math & Phys, Hermann Herder Str 3, D-79104 Freiburg, Germany.
RI Carvalho, Joao/M-4060-2013; Polukhina, Natalia/E-1610-2014; Booth,
Christopher/B-5263-2016; Gonzalez de la Hoz, Santiago/E-2494-2016;
Smirnova, Oxana/A-4401-2013; Aguilar Saavedra, Juan Antonio/F-1256-2016;
Pacheco Pages, Andres/C-5353-2011; Leyton, Michael/G-2214-2016; Vranjes
Milosavljevic, Marija/F-9847-2016; SULIN, VLADIMIR/N-2793-2015;
vasilyeva, lidia/M-9569-2015; Popescu, Razvan/H-6521-2016; Ferrer,
Antonio/H-2942-2015; Hansen, John/B-9058-2015; Grancagnolo,
Sergio/J-3957-2015; Tassi, Enrico/K-3958-2015; Tikhomirov,
Vladimir/M-6194-2015; kayumov, fred/M-6274-2015; Shmeleva,
Alevtina/M-6199-2015; Camarri, Paolo/M-7979-2015; Gavrilenko,
Igor/M-8260-2015; Akimov, Andrey/N-1769-2015; Jones, Roger/H-5578-2011;
Chekulaev, Sergey/O-1145-2015; Gorelov, Igor/J-9010-2015; Demirkoz,
Bilge/C-8179-2014; Ventura, Andrea/A-9544-2015; Villaplana Perez,
Miguel/B-2717-2015; Livan, Michele/D-7531-2012; Mitsou,
Vasiliki/D-1967-2009; CARPENTIERI, CARMELA/E-2137-2015; Joergensen,
Morten/E-6847-2015; Martins, Paulo/M-1844-2014; Mir,
Lluisa-Maria/G-7212-2015; Riu, Imma/L-7385-2014; Cabrera Urban,
Susana/H-1376-2015; Cavalli-Sforza, Matteo/H-7102-2015; Battistoni,
Giuseppe/B-5264-2012; Gauzzi, Paolo/D-2615-2009; Idzik,
Marek/A-2487-2017; Mashinistov, Ruslan/M-8356-2015; Solodkov,
Alexander/B-8623-2017; Zaitsev, Alexandre/B-8989-2017; Yang,
Haijun/O-1055-2015; Grancagnolo, Francesco/K-2857-2015; Korol,
Aleksandr/A-6244-2014; Samset, Bjorn H./B-9248-2012; Olshevskiy,
Alexander/I-1580-2016; Casado, Pilar/H-1484-2015; BESSON,
NATHALIE/L-6250-2015; Mora Herrera, Maria Clemencia/L-3893-2016;
Maneira, Jose/D-8486-2011; Prokoshin, Fedor/E-2795-2012; KHODINOV,
ALEKSANDR/D-6269-2015; Morone, Maria Cristina/P-4407-2016; Goncalo,
Ricardo/M-3153-2016; Canelli, Florencia/O-9693-2016; Kupco,
Alexander/G-9713-2014; Marcisovsky, Michal/H-1533-2014; Mikestikova,
Marcela/H-1996-2014; Snesarev, Andrey/H-5090-2013; Tomasek,
Lukas/G-6370-2014; Chudoba, Jiri/G-7737-2014; Peleganchuk,
Sergey/J-6722-2014; Santamarina Rios, Cibran/K-4686-2014; Bosman,
Martine/J-9917-2014; Nasteva, Irina/M-8764-2014; Grinstein,
Sebastian/N-3988-2014; Lei, Xiaowen/O-4348-2014; Karyukhin,
Andrey/J-3904-2014; Capua, Marcella/A-8549-2015; Tartarelli, Giuseppe
Francesco/A-5629-2016; la rotonda, laura/B-4028-2016; Veneziano,
Stefano/J-1610-2012; spagnolo, stefania/A-6359-2012; Di Nardo,
Roberto/J-4993-2012; Della Pietra, Massimo/J-5008-2012; Andreazza,
Attilio/E-5642-2011; Cascella, Michele/B-6156-2013; M,
Saleem/B-9137-2013; messina, andrea/C-2753-2013; Amorim,
Antonio/C-8460-2013; Orlov, Ilya/E-6611-2012; Annovi,
Alberto/G-6028-2012; Brooks, William/C-8636-2013; Britton,
David/F-2602-2010; Li, Xuefei/C-3861-2012; Smirnova, Lidia/D-8089-2012;
Smirnov, Sergei/F-1014-2011; Gladilin, Leonid/B-5226-2011; Kramarenko,
Victor/E-1781-2012; Moorhead, Gareth/B-6634-2009; Petrucci,
Fabrizio/G-8348-2012; Wemans, Andre/A-6738-2012; Fabbri,
Laura/H-3442-2012; Kurashige, Hisaya/H-4916-2012; Kuzhir,
Polina/H-8653-2012; Delmastro, Marco/I-5599-2012; Kastoryano,
Michael/L-6037-2013; Castro, Nuno/D-5260-2011; Wolters,
Helmut/M-4154-2013; Warburton, Andreas/N-8028-2013; De,
Kaushik/N-1953-2013; Sukharev, Andrey/A-6470-2014; O'Shea,
Val/G-1279-2010; Lee, Jason/B-9701-2014; Morozov, Sergey/C-1396-2014;
Villa, Mauro/C-9883-2009; Nemecek, Stanislav/G-5931-2014; Staroba,
Pavel/G-8850-2014; Lokajicek, Milos/G-7800-2014; Pina, Joao
/C-4391-2012; Mehdiyev, Rashid/H-6299-2013; Vanyashin,
Aleksandr/H-7796-2013; Casadei, Diego/I-1785-2013; La Rosa,
Alessandro/I-1856-2013; Conde Muino, Patricia/F-7696-2011; Boyko,
Igor/J-3659-2013; Kuleshov, Sergey/D-9940-2013; Anjos, Nuno/I-3918-2013;
Kartvelishvili, Vakhtang/K-2312-2013; Dawson, Ian/K-6090-2013; Solfaroli
Camillocci, Elena/J-1596-2012; Marti-Garcia, Salvador/F-3085-2011;
Robson, Aidan/G-1087-2011; Di Domenico, Antonio/G-6301-2011; Losada,
Marta/B-2261-2010; Ferrando, James/A-9192-2012; collins-tooth,
christopher/A-9201-2012; De Cecco, Sandro/B-1016-2012; branchini,
paolo/A-4857-2011; Wolter, Marcin/A-7412-2012; Nemecek,
Stanislav/C-3487-2012; Szczygiel, Robert/B-5662-2011; Takai,
Helio/C-3301-2012; St.Denis, Richard/C-8997-2012; Buttar,
Craig/D-3706-2011; de Groot, Nicolo/A-2675-2009; Rescia,
Sergio/D-8604-2011; Doyle, Anthony/C-5889-2009; Jakubek,
Jan/E-6530-2011; Fazio, Salvatore /G-5156-2010; valente,
paolo/A-6640-2010; Moraes, Arthur/F-6478-2010; Perrino,
Roberto/B-4633-2010; Gutierrez, Phillip/C-1161-2011; Rotaru,
Marina/A-3097-2011; Stoicea, Gabriel/B-6717-2011; Alexa,
Calin/F-6345-2010;
OI Carvalho, Joao/0000-0002-3015-7821; Booth,
Christopher/0000-0002-6051-2847; Gonzalez de la Hoz,
Santiago/0000-0001-5304-5390; Smirnova, Oxana/0000-0003-2517-531X;
Aguilar Saavedra, Juan Antonio/0000-0002-5475-8920; Pacheco Pages,
Andres/0000-0001-8210-1734; Leyton, Michael/0000-0002-0727-8107; Vranjes
Milosavljevic, Marija/0000-0003-4477-9733; SULIN,
VLADIMIR/0000-0003-3943-2495; Popescu, Razvan/0000-0003-1989-764X;
Ferrer, Antonio/0000-0003-0532-711X; Hansen, John/0000-0002-8422-5543;
Grancagnolo, Sergio/0000-0001-8490-8304; Tikhomirov,
Vladimir/0000-0002-9634-0581; Camarri, Paolo/0000-0002-5732-5645; Jones,
Roger/0000-0002-6427-3513; Gorelov, Igor/0000-0001-5570-0133; Ventura,
Andrea/0000-0002-3368-3413; Villaplana Perez,
Miguel/0000-0002-0048-4602; Livan, Michele/0000-0002-5877-0062; Mitsou,
Vasiliki/0000-0002-1533-8886; CARPENTIERI, CARMELA/0000-0002-2994-0317;
Joergensen, Morten/0000-0002-6790-9361; Martins,
Paulo/0000-0003-3753-3751; Mir, Lluisa-Maria/0000-0002-4276-715X; Riu,
Imma/0000-0002-3742-4582; Battistoni, Giuseppe/0000-0003-3484-1724;
Gauzzi, Paolo/0000-0003-4841-5822; Mashinistov,
Ruslan/0000-0001-7925-4676; Solodkov, Alexander/0000-0002-2737-8674;
Zaitsev, Alexandre/0000-0002-4961-8368; Mambelli,
Marco/0000-0002-9489-2681; Grancagnolo, Francesco/0000-0002-9367-3380;
Korol, Aleksandr/0000-0001-8448-218X; Maio, Amelia/0000-0001-9099-0009;
Samset, Bjorn H./0000-0001-8013-1833; Olshevskiy,
Alexander/0000-0002-8902-1793; Casado, Pilar/0000-0002-0394-5646; Mora
Herrera, Maria Clemencia/0000-0003-3915-3170; Maneira,
Jose/0000-0002-3222-2738; Prokoshin, Fedor/0000-0001-6389-5399;
KHODINOV, ALEKSANDR/0000-0003-3551-5808; Morone, Maria
Cristina/0000-0002-0200-0632; Goncalo, Ricardo/0000-0002-3826-3442;
Canelli, Florencia/0000-0001-6361-2117; Mikestikova,
Marcela/0000-0003-1277-2596; Tomasek, Lukas/0000-0002-5224-1936;
Peleganchuk, Sergey/0000-0003-0907-7592; Santamarina Rios,
Cibran/0000-0002-9810-1816; Bosman, Martine/0000-0002-7290-643X;
Nasteva, Irina/0000-0001-7115-7214; Grinstein,
Sebastian/0000-0002-6460-8694; Lei, Xiaowen/0000-0002-2564-8351;
Fiolhais, Miguel/0000-0001-9035-0335; Karyukhin,
Andrey/0000-0001-9087-4315; Anjos, Nuno/0000-0002-0018-0633; Giordani,
Mario/0000-0002-0792-6039; Abdelalim, Ahmed Ali/0000-0002-2056-7894;
Capua, Marcella/0000-0002-2443-6525; Tartarelli, Giuseppe
Francesco/0000-0002-4244-502X; Gnanvo, Kondo/0000-0002-5348-0664; Doria,
Alessandra/0000-0002-5381-2649; Veloso, Filipe/0000-0002-5956-4244;
Gomes, Agostinho/0000-0002-5940-9893; la rotonda,
laura/0000-0002-6780-5829; Osculati, Bianca Maria/0000-0002-7246-060X;
Amorim, Antonio/0000-0003-0638-2321; Bertolucci,
Sergio/0000-0003-1738-4736; Santos, Helena/0000-0003-1710-9291; Coccaro,
Andrea/0000-0003-2368-4559; De Lotto, Barbara/0000-0003-3624-4480;
Zambrano, Valentina/0000-0001-6213-8126; Della Volpe,
Domenico/0000-0001-8530-7447; Veneziano, Stefano/0000-0002-2598-2659;
spagnolo, stefania/0000-0001-7482-6348; Della Pietra,
Massimo/0000-0003-4446-3368; Andreazza, Attilio/0000-0001-5161-5759;
Cascella, Michele/0000-0003-2091-2501; Orlov, Ilya/0000-0003-4073-0326;
Annovi, Alberto/0000-0002-4649-4398; Brooks,
William/0000-0001-6161-3570; Britton, David/0000-0001-9998-4342;
Smirnov, Sergei/0000-0002-6778-073X; Gladilin,
Leonid/0000-0001-9422-8636; Moorhead, Gareth/0000-0002-9299-9549;
Petrucci, Fabrizio/0000-0002-5278-2206; Wemans,
Andre/0000-0002-9669-9500; Fabbri, Laura/0000-0002-4002-8353; Kuzhir,
Polina/0000-0003-3689-0837; Delmastro, Marco/0000-0003-2992-3805;
Castro, Nuno/0000-0001-8491-4376; Wolters, Helmut/0000-0002-9588-1773;
Warburton, Andreas/0000-0002-2298-7315; De, Kaushik/0000-0002-5647-4489;
O'Shea, Val/0000-0001-7183-1205; Lee, Jason/0000-0002-2153-1519;
Morozov, Sergey/0000-0002-6748-7277; Villa, Mauro/0000-0002-9181-8048;
Pina, Joao /0000-0001-8959-5044; Vanyashin,
Aleksandr/0000-0002-0367-5666; La Rosa, Alessandro/0000-0001-6291-2142;
Conde Muino, Patricia/0000-0002-9187-7478; Boyko,
Igor/0000-0002-3355-4662; Kuleshov, Sergey/0000-0002-3065-326X;
Solfaroli Camillocci, Elena/0000-0002-5347-7764; Di Domenico,
Antonio/0000-0001-8078-2759; Ferrando, James/0000-0002-1007-7816; Takai,
Helio/0000-0001-9253-8307; Rescia, Sergio/0000-0003-2411-8903; Doyle,
Anthony/0000-0001-6322-6195; valente, paolo/0000-0002-5413-0068; Moraes,
Arthur/0000-0002-5157-5686; Perrino, Roberto/0000-0002-5764-7337;
Rotaru, Marina/0000-0003-3303-5683; Stoicea,
Gabriel/0000-0002-7511-4614; Romero-Maltrana, Diego/0000-0003-2550-5243;
Pomarede, Daniel/0000-0003-2038-0488; Casadei,
Diego/0000-0002-3343-3529; Mendes Saraiva, Joao
Gentil/0000-0002-7006-0864; Salamanna, Giuseppe/0000-0002-0861-0052;
Lacasta, Carlos/0000-0002-2623-6252; Price, Darren/0000-0003-2750-9977;
Quinonez Granados, Fernando Andres/0000-0002-0153-6160; Paoloni,
Alessandro/0000-0002-4141-7799; Belanger-Champagne,
Camille/0000-0003-2368-2617
FU ANPCyT, Argentina; Yerevan Physics Institute, Armenia; ARC, Australia;
DEST, Australia; Bundesministerium fur Wissenschaft und Forschung,
Austria; National Academy of Sciences of Azerbaijan; State Committee on
Science & Technologies of the Republic of Belarus; CNPq, Brazil; FINEP,
Brazil; NSERC, Canada; NRC, Canada; CFI, Canada; CERN; CONICYT, Chile;
NSFC, China; COLCIENCIAS, Colombia; Ministry of Education, Youth and
Sports of the Czech Republic; Committee for Collaboration of the Czech
Republic; DNRF, Denmark; DNSRC, Denmark; Lundbeck Foundation, Denmark;
European Commission, through the ARTEMIS Research Training Network;
IN2P3-CNRS, France; CEA-DSM/IRFU, France; Georgian Academy of Sciences;
BMBF, Germany; DFG, Germany; HGF, Germany; MPG, Germany; Ministry of
Education and Religion, Greece; ISF, Israel; MINERVA, Israel; GIF,
Israel; DIP, Israel; Benoziyo Center, Israel; INFN, Italy; MEXT, Japan;
CNRST, Morocco; FOM, Netherlands; Research Council of Norway; Ministry
of Science and Higher Education, Poland; GRICES, Portugal; FCT,
Portugal; Ministry of Education and Research, Romania; Ministry of
Education and Science of the Russian Federation; JINR; Ministry of
Science, Serbia; Department of International Science and Technology
Cooperation; Ministry of Education of the Slovak Republic; Slovenian
Research Agency, Ministry of Higher Education, Science and Technology,
Slovenia; Ministerio de Educacion y Ciencia, Spain; Swedish Research
Council, Knut and Alice Wallenberg Foundation, Sweden; State Secretariat
for Education and Science, Switzerland; Swiss National Science
Foundation, Switzerland; Cantons of Bern and Geneva, Switzerland;
National Science Council, Taiwan; TAEK, Turkey; STFC, United Kingdom;
Royal Society, United Kingdom; Leverhulme Trust, United Kingdom; DOE,
United States of America; NSF, United States of America; Ministry of
Industry and Trade of the Czech Republic; GSRT, Greece; State Atomic
Energy Corporation ROSATOM; NWO, Netherlands
FX We acknowledge the support of ANPCyT, Argentina; Yerevan Physics
Institute, Armenia; ARC and DEST, Australia; Bundesministerium fur
Wissenschaft und Forschung, Austria; National Academy of Sciences of
Azerbaijan; State Committee on Science & Technologies of the Republic of
Belarus; CNPq and FINEP, Brazil; NSERC, NRC, and CFI, Canada; CERN;
CONICYT, Chile; NSFC, China; COLCIENCIAS, Colombia; Ministry of
Education, Youth and Sports of the Czech Republic, Ministry of Industry
and Trade of the Czech Republic, and Committee for Collaboration of the
Czech Republic with CERN; DNRF, DNSRC and the Lundbeck Foundation,
Denmark; European Commission, through the ARTEMIS Research Training
Network; IN2P3-CNRS and CEA-DSM/IRFU, France; Georgian Academy of
Sciences; BMBF, DFG, HGF and MPG, Germany; Ministry of Education and
Religion, through the EPEAEK program PYTHAGORAS II and GSRT, Greece;
ISF, MINERVA, GIF, DIP, and Benoziyo Center, Israel; INFN, Italy; MEXT,
Japan; CNRST, Morocco; FOM and NWO, Netherlands; The Research Council of
Norway; Ministry of Science and Higher Education, Poland; GRICES and
FCT, Portugal; Ministry of Education and Research, Romania; Ministry of
Education and Science of the Russian Federation and State Atomic Energy
Corporation ROSATOM; JINR; Ministry of Science, Serbia; Department of
International Science and Technology Cooperation, Ministry of Education
of the Slovak Republic; Slovenian Research Agency, Ministry of Higher
Education, Science and Technology, Slovenia; Ministerio de Educacion y
Ciencia, Spain; The Swedish Research Council, The Knut and Alice
Wallenberg Foundation, Sweden; State Secretariat for Education and
Science, Swiss National Science Foundation, and Cantons of Bern and
Geneva, Switzerland; National Science Council, Taiwan; TAEK, Turkey; The
STFC, the Royal Society and The Leverhulme Trust, United Kingdom; DOE
and NSF, United States of America.
NR 25
TC 48
Z9 48
U1 4
U2 70
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0370-2693
EI 1873-2445
J9 PHYS LETT B
JI Phys. Lett. B
PD JAN 3
PY 2011
VL 694
IS 4-5
BP 327
EP 345
DI 10.1016/j.physletb.2010.10.021
PG 19
WC Astronomy & Astrophysics; Physics, Nuclear; Physics, Particles & Fields
SC Astronomy & Astrophysics; Physics
GA 710EW
UT WOS:000286494700009
ER
PT J
AU Loh, O
Wei, XD
Ke, CH
Sullivan, J
Espinosa, HD
AF Loh, Owen
Wei, Xiaoding
Ke, Changhong
Sullivan, John
Espinosa, Horacio D.
TI Robust Carbon-Nanotube-Based Nano-electromechanical Devices:
Understanding and Eliminating Prevalent Failure Modes Using Alternative
Electrode Materials
SO SMALL
LA English
DT Article
ID NUMERICAL-ANALYSIS; WORK FUNCTION; NEMS DEVICES; NANORELAY; DEPOSITION;
EMISSION; DIAMOND; ENERGY; MEMORY; GOLD
C1 [Loh, Owen; Wei, Xiaoding; Espinosa, Horacio D.] Northwestern Univ, Dept Mech Engn, Evanston, IL 60208 USA.
[Ke, Changhong] SUNY Binghamton, Dept Mech Engn, Binghamton, NY 13902 USA.
[Sullivan, John] Sandia Natl Labs, Ctr Integrated Nanotechnol, Albuquerque, NM 87185 USA.
RP Espinosa, HD (reprint author), Northwestern Univ, Dept Mech Engn, 2145 Sheridan Rd, Evanston, IL 60208 USA.
EM espinosa@northwestern.edu
RI Espinosa, Horatio/B-6693-2009; Ke, Changhong/C-4064-2008; Wei,
Xiaoding/A-9952-2011;
OI Wei, Xiaoding/0000-0002-5173-4923; Ke, Changhong/0000-0002-5170-9859
FU Army Research Office [W911NF-08-1-0061]; National Science Foundation
[CMMI-0555734]; U.S. Department of Energy, Office of Basic Energy
Sciences [DE-AC52-06NA25396, DE-AC04-94AL85000, DE-AC02-06CH11357]
FX HDE gratefully acknowledges support from the Army Research Office
through award No. W911NF-08-1-0061, and the National Science Foundation
through award No. CMMI-0555734. This work was performed in part at the
Center for Integrated Nanotechnologies, a U.S. Department of Energy,
Office of Basic Energy Sciences user facility at Los Alamos National
laboratory (Contract DE-AC52-06NA25396) and Sandia National Laboratories
(Contract DE-AC04-94AL85000), and in part at the Center for Nanoscale
Materials which is supported by the U.S. Department of Energy, Office of
Basic Energy Sciences under Contract No. DE-AC02-06CH11357. The authors
gratefully acknowledge assistance from Tobin Filleter regarding
nanomanipulation techniques and John Nogan in microfabrication of
diamond-like carbon electrodes.
NR 39
TC 18
Z9 18
U1 1
U2 13
PU WILEY-V C H VERLAG GMBH
PI WEINHEIM
PA PO BOX 10 11 61, D-69451 WEINHEIM, GERMANY
SN 1613-6810
J9 SMALL
JI Small
PD JAN 3
PY 2011
VL 7
IS 1
BP 79
EP 86
DI 10.1002/smll.201001166
PG 8
WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience &
Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied;
Physics, Condensed Matter
SC Chemistry; Science & Technology - Other Topics; Materials Science;
Physics
GA 701DI
UT WOS:000285794100009
PM 21104780
ER
PT S
AU Atanasiu, CV
Moraru, A
Zakharov, LE
AF Atanasiu, C. V.
Moraru, A.
Zakharov, L. E.
GP UNIV POLITEHNICA BUCHAREST
TI MHD Modeling in Diverted Tokamak Configurations
SO 2011 7TH INTERNATIONAL SYMPOSIUM ON ADVANCED TOPICS IN ELECTRICAL
ENGINEERING (ATEE)
SE International Symposium on Advanced Topics in Electrical Engineering
LA English
DT Proceedings Paper
CT 7th International Symposium on Advanced Topics in Electrical Engineering
(ATEE)
CY MAY 12-14, 2011
CL Bucharest, ROMANIA
SP Inst Elect & Elect Engineers
ID MODES; STABILIZATION; EQUILIBRIUM; PLASMA
AB In the advanced tokamak scenarios, plasma performance is strongly limited by the External Kink Mode (EKM) which, coupled inductively with a resistive wall, is transformed in a Resistive Wall Mode (RWM). In this paper we present our contribution to calculations of RWMs in diverted tokamak configurations. By choosing a coordinate system with straight field lines, we have calculated the vacuum field due to the helical perturbation of the EKM, by using the concept of surface currents via the single layer potential theory. The possible presence of a diverted tokamak plasma configuration has been taken into account. Finally, we have calculated the response of a nonuniform resistive wall to an external kink instability of a tokamak, taking toroidal and poloidal plasma rotations with respect to the wall into account.
C1 [Atanasiu, C. V.] Natl Inst Laser Plasma & Radiat Phys, Bucharest, Romania.
[Moraru, A.] Univ Politehn Bucuresti, Bucharest, Romania.
[Zakharov, L. E.] Princeton Univ, Plasma Phys Lab, Princeton, NJ USA.
RP Atanasiu, CV (reprint author), Natl Inst Laser Plasma & Radiat Phys, Bucharest, Romania.
EM cva@ipp.mpg.de
FU European Commission; US DoE [DE-AC02-09-CH11466]
FX Part of this work was conducted during a research stay by C.V.A to the
Max-Planck Institute for Plasmaphysics in Garching, Germany and the
hospitality of that Institute is greatly appreciated. C.V.A. and A.M.
have contributed to this work in the frame of the Contract of
Association No. ERB 5005 CT 990101 between EURATOM and the Association
MEdC-Romania, with partial support from the European Commission. The
work of L.E.Z. was partially supported by US DoE contract No.
DE-AC02-09-CH11466.
NR 14
TC 0
Z9 0
U1 0
U2 1
PU UNIV POLITEHNICA BUCHAREST, FAC ELECTRICAL ENGINEERING, ATEE
PI BUCURESTI
PA SPLAIUL INDEPENDENTEI NO 313, SECTOR 1, BUCURESTI, 060042, ROMANIA
SN 1843-8571
BN 978-1-4577-0507-6
J9 INT SYMP ADV TOP
PY 2011
PG 4
WC Engineering, Electrical & Electronic
SC Engineering
GA BCM27
UT WOS:000310701200125
ER
PT S
AU Straatsma, TP
Bylaska, EJ
van Dam, HJJ
Govind, N
de Jong, WA
Kowalski, K
Valiev, M
AF Straatsma, T. P.
Bylaska, E. J.
van Dam, H. J. J.
Govind, N.
de Jong, W. A.
Kowalski, K.
Valiev, M.
BE Wheeler, RA
TI Advances in Scalable Computational Chemistry: NWChem
SO ANNUAL REPORTS IN COMPUTATIONAL CHEMISTRY, VOL 7
SE Annual Reports in Computational Chemistry
LA English
DT Article; Book Chapter
DE NWChem; classical statistical mechanics; quantum chemistry methods;
molecular dynamics simulation; density functional theory; plane-wave
methods; coupled cluster-CCSD(T)
ID MOTION COUPLED-CLUSTER; ELECTRONIC-STRUCTURE CALCULATIONS;
MOLECULAR-DYNAMICS SIMULATIONS; CORRELATED WAVE-FUNCTIONS;
SYMMETRY-ADAPTED-CLUSTER; PARALLEL IMPLEMENTATION; QUANTUM-CHEMISTRY;
EXCITED-STATES; EXCITATION-ENERGIES; BASIS-SETS
AB NWChem is the highly scalable computational chemistry software package developed by the Molecular Sciences Software group for the Environmental Molecular Sciences Laboratory. The software provides a wide range of capabilities for quantum mechanical and classical mechanical modeling and simulation of chemical and biological systems. The software infrastructure has been designed to facilitate the rapid development and integration of new application modules with a convenient mechanism to enable large-scale computations that rely on a combination of methodologies to be used. Built using the partitioned global address space-based Global Arrays programming model, the design of the software separates the architecture-dependent communication layer from the computational chemistry modules. This results in a highly portable code in which only a relatively small part of the code needs to be ported to new computer architectures.
C1 [Straatsma, T. P.; Bylaska, E. J.; van Dam, H. J. J.; Govind, N.; de Jong, W. A.; Kowalski, K.; Valiev, M.] Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Straatsma, TP (reprint author), Pacific NW Natl Lab, Richland, WA 99352 USA.
NR 109
TC 3
Z9 3
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 1574-1400
BN 978-0-44-454302-8
J9 ANN REP COMP CHEM
PY 2011
VL 7
BP 151
EP 177
DI 10.1016/B978-0-444-53835-2.00007-9
PG 27
WC Biochemistry & Molecular Biology; Computer Science, Interdisciplinary
Applications; Mathematical & Computational Biology
SC Biochemistry & Molecular Biology; Computer Science; Mathematical &
Computational Biology
GA BCU01
UT WOS:000311387200008
ER
PT B
AU Khaligh, A
Onar, OC
AF Khaligh, Alireza
Onar, Omer C.
BE Rashid, MH
TI Energy Sources
SO POWER ELECTRONICS HANDBOOK: DEVICES, CIRCUITS, AND APPLICATIONS, 3RD
EDITION
LA English
DT Article; Book Chapter
ID POWER-POINT TRACKING; FED INDUCTION GENERATOR; BACK PWM CONVERTERS;
FUEL-CELL; NEURAL-NETWORK; WIND TURBINES; PHOTOVOLTAIC SYSTEMS;
SYNCHRONOUS MACHINE; CONVERSION SYSTEM; RENEWABLE ENERGY
C1 [Khaligh, Alireza] IIT, Dept Elect & Comp Engn, EHREL, EPPEC, Chicago, IL 60616 USA.
[Onar, Omer C.] Oak Ridge Natl Lab, Oak Ridge, TN USA.
RP Khaligh, A (reprint author), IIT, Dept Elect & Comp Engn, EHREL, EPPEC, Chicago, IL 60616 USA.
NR 207
TC 0
Z9 0
U1 1
U2 2
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
BN 978-0-12-382037-2; 978-0-12-382036-5
PY 2011
BP 1289
EP 1330
DI 10.1016/B978-0-12-382036-5.00045-8
PG 42
WC Engineering, Electrical & Electronic
SC Engineering
GA BCS23
UT WOS:000311250400046
ER
PT J
AU Dunlavy, DM
Kolda, TG
Kegelmeyer, WP
AF Dunlavy, Daniel M.
Kolda, Tamara G.
Kegelmeyer, W. Philip
BE Kepner, J
Gilbert, J
TI Multilinear Algebra for Analyzing Data with Multiple Linkages
SO GRAPH ALGORITHMS IN THE LANGUAGE OF LINEAR ALGEBRA
SE Software Environments and Tools
LA English
DT Article; Book Chapter
ID TENSOR DECOMPOSITIONS; SOCIAL NETWORK; ALGORITHMS; RETRIEVAL
AB Tensors are a useful tool for representing multi-link graphs, and tensor decompositions facilitate a type of link analysis that incorporates all link types simultaneously. An adjacency tensor is formed by stacking the adjacency matrix for each link type to form a three-way array. The CANDECOMP/PARAFAC (CP) tensor decomposition provides information about adjacency tensors of multi-link graphs analogous to that produced for adjacency matrices of single-link graphs using the singular value decomposition (SVD). The CP tensor decomposition generates feature vectors that incorporate all linkages simultaneously for each node in a multi-link graph. Feature vectors can be used to analyze bibliometric data in a variety of ways, for example, to analyze five years of publication data from journals published by the Society for Industrial and Applied Mathematics (SIAM). Experiments presented include analyzing a body of work, distinguishing between papers written by different authors with the same name, and predicting the journal in which a paper is published.
C1 [Dunlavy, Daniel M.] Sandia Natl Labs, Comp Sci & Informat Dept, Albuquerque, NM 87185 USA.
[Kolda, Tamara G.; Kegelmeyer, W. Philip] Sandia Natl Labs, Informat & Decis Sci Dept, Livermore, CA 94551 USA.
RP Dunlavy, DM (reprint author), Sandia Natl Labs, Comp Sci & Informat Dept, POB 5800, Albuquerque, NM 87185 USA.
EM dmdunla@sandia.gov; tgkolda@sandia.gov; wpk@sandia.gov
NR 48
TC 5
Z9 5
U1 0
U2 0
PU SIAM
PI PHILADELPHIA
PA 3600 UNIV CITY SCIENCE CENTER, PHILADELPHIA, PA 19104-2688 USA
BN 978-0-898719-90-1
J9 SOFTW ENVIRON TOOLS
PY 2011
VL 22
BP 85
EP 114
D2 10.1137/1.9780898719918
PG 30
WC Computer Science, Theory & Methods; Mathematics, Applied
SC Computer Science; Mathematics
GA BWH92
UT WOS:000293907200008
ER
PT J
AU Bader, DA
Heitsch, CE
Madduri, K
AF Bader, David A.
Heitsch, Christine E.
Madduri, Kamesh
BE Kepner, J
Gilbert, J
TI Large-Scale Network Analysis
SO GRAPH ALGORITHMS IN THE LANGUAGE OF LINEAR ALGEBRA
SE Software Environments and Tools
LA English
DT Article; Book Chapter
ID SMALL-WORLD NETWORKS; PROTEIN-INTERACTION NETWORK; COMPLEX NETWORKS;
CENTRALITY; BETWEENNESS; WEB; DATABASE; YEAST
AB Centrality analysis deals with the identification of critical vertices and edges in real-world graph abstractions. Graph-theoretic centrality heuristics such as betweenness and closeness are widely used in application domains ranging from social network analysis to systems biology. In this chapter, we discuss several new results related to large-scale graph analysis using centrality indices. We present the first parallel algorithms and efficient implementations for evaluating these compute-intensive metrics. Our parallel algorithms are optimized for real-world networks, and they exploit topological properties such as the low graph diameter and unbalanced degree distributions. We evaluate centrality indices for several large-scale networks such as web crawls, protein-interaction networks (PINs), movie-actor networks, and patent citation networks that are three orders of magnitude larger than instances that can be processed by current social network analysis packages. As an application to systems biology, we present the novel case study of betweenness centrality analysis applied to eukaryotic PINs. We make an important observation that proteins with high betweenness centrality, but low degree, are abundant in the human and yeast PINs.
C1 [Bader, David A.] Georgia Inst Technol, Coll Comp, Atlanta, GA 30332 USA.
[Heitsch, Christine E.] Georgia Inst Technol, Sch Math, Atlanta, GA 30332 USA.
[Madduri, Kamesh] Univ Calif Berkeley, Lawrence Berkeley Lab, Computat Res Div, Berkeley, CA 94720 USA.
RP Bader, DA (reprint author), Georgia Inst Technol, Coll Comp, Atlanta, GA 30332 USA.
EM bader@cc.gatech.edu; heitsch@math.gatech.edu; KMadduri@lbl.gov
NR 64
TC 0
Z9 0
U1 0
U2 1
PU SIAM
PI PHILADELPHIA
PA 3600 UNIV CITY SCIENCE CENTER, PHILADELPHIA, PA 19104-2688 USA
BN 978-0-898719-90-1
J9 SOFTW ENVIRON TOOLS
PY 2011
VL 22
BP 253
EP 285
D2 10.1137/1.9780898719918
PG 33
WC Computer Science, Theory & Methods; Mathematics, Applied
SC Computer Science; Mathematics
GA BWH92
UT WOS:000293907200013
ER
PT J
AU Buluc, A
Gilbert, J
AF Buluc, Aydin
Gilbert, John
BE Kepner, J
Gilbert, J
TI New Ideas in Sparse Matrix Matrix Multiplication
SO GRAPH ALGORITHMS IN THE LANGUAGE OF LINEAR ALGEBRA
SE Software Environments and Tools
LA English
DT Article; Book Chapter
ID SHORTEST-PATH; ALGORITHM; IMPLEMENTATION; GRAPHS
AB Generalized sparse matrix matrix multiplication is a key primitive for many high performance graph algorithms as well as some linear solvers such as multigrid. We present the first parallel algorithms that achieve increasing speedups for an unbounded number of processors. Our algorithms are based on the two-dimensional (2D) block distribution of sparse matrices where serial sections use a novel hypersparse kernel for scalability.
C1 [Buluc, Aydin] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
[Gilbert, John] Univ Calif Santa Barbara, Dept Comp Sci, Santa Barbara, CA 93106 USA.
RP Buluc, A (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, 1 Cyclotron Rd, Berkeley, CA 94720 USA.
EM abuluc@lbl.gov; gilbert@cs.ucsb.edu
NR 37
TC 0
Z9 0
U1 0
U2 1
PU SIAM
PI PHILADELPHIA
PA 3600 UNIV CITY SCIENCE CENTER, PHILADELPHIA, PA 19104-2688 USA
BN 978-0-898719-90-1
J9 SOFTW ENVIRON TOOLS
PY 2011
VL 22
BP 315
EP 337
D2 10.1137/1.9780898719918
PG 23
WC Computer Science, Theory & Methods; Mathematics, Applied
SC Computer Science; Mathematics
GA BWH92
UT WOS:000293907200015
ER
PT J
AU Kepner, J
Bader, DA
Bond, R
Bliss, N
Faloutsos, C
Hendrickson, B
Gilbert, J
Robinson, E
AF Kepner, Jeremy
Bader, David A.
Bond, Robert
Bliss, Nadya
Faloutsos, Christos
Hendrickson, Bruce
Gilbert, John
Robinson, Eric
BE Kepner, J
Gilbert, J
TI Fundamental Questions in the Analysis of Large Graphs
SO GRAPH ALGORITHMS IN THE LANGUAGE OF LINEAR ALGEBRA
SE Software Environments and Tools
LA English
DT Article; Book Chapter
AB Graphs are a general approach for representing information that spans the widest possible range of computing applications. They are particularly important to computational biology, web search, and knowledge discovery. As the sizes of graphs increase, the need to apply advanced mathematical and computational techniques to solve these problems is growing dramatically. Examining the mathematical and computational foundations of the analysis of large graphs generally leads to more questions than answers. This book concludes with a discussion of some of these questions.
C1 [Kepner, Jeremy; Bond, Robert; Bliss, Nadya; Robinson, Eric] MIT, Lincoln Lab, Lexington, MA 02420 USA.
[Bader, David A.] Georgia Inst Technol, Coll Comp, Atlanta, GA 30332 USA.
[Faloutsos, Christos] Carnegie Mellon Univ, Sch Comp Sci, Pittsburgh, PA 15213 USA.
[Hendrickson, Bruce] Sandia Natl Labs, Discrete Algorithms & Math Dept, Albuquerque, NM 87185 USA.
[Gilbert, John] Univ Calif Santa Barbara, Dept Comp Sci, Santa Barbara, CA 93106 USA.
RP Kepner, J (reprint author), MIT, Lincoln Lab, 244 Wood St, Lexington, MA 02420 USA.
EM kepner@ll.mit.edu; bader@cc.gatech.edu; rbond@ll.mit.edu; nt@ll.mit.edu;
christos@cs.cmu.edu; bahendr@sandia.gov; gilbert@cs.ucsb.edu;
erobinson@ll.mit.edu
NR 0
TC 0
Z9 0
U1 1
U2 2
PU SIAM
PI PHILADELPHIA
PA 3600 UNIV CITY SCIENCE CENTER, PHILADELPHIA, PA 19104-2688 USA
BN 978-0-898719-90-1
J9 SOFTW ENVIRON TOOLS
PY 2011
VL 22
BP 353
EP 357
D2 10.1137/1.9780898719918
PG 5
WC Computer Science, Theory & Methods; Mathematics, Applied
SC Computer Science; Mathematics
GA BWH92
UT WOS:000293907200017
ER
PT S
AU Klaehn, JR
Orme, CJ
Peterson, ES
Stewart, FF
Urban-Klaehn, JM
AF Klaehn, John R.
Orme, Christopher J.
Peterson, Eric S.
Stewart, Frederick F.
Urban-Klaehn, Jagoda M.
BE Oyama, ST
StaggWilliams, SM
TI High Temperature Gas Separations Using High Performance Polymers
SO INORGANIC, POLYMERIC AND COMPOSITE MEMBRANES: STRUCTURE, FUNCTION AND
OTHER CORRELATIONS, VOL 14
SE Membrane Science and Technology Series
LA English
DT Article; Book Chapter
ID AROMATIC POLYIMIDES; GLASSY-POLYMERS; PERMEATION; PERMEABILITY;
MEMBRANES; POLYELECTROLYTES; SORPTION; WATER
C1 [Klaehn, John R.; Orme, Christopher J.; Peterson, Eric S.; Stewart, Frederick F.] Idaho Natl Lab, Idaho Falls, ID USA.
[Urban-Klaehn, Jagoda M.] Idaho Accelerator Ctr, Pocatello, ID USA.
RP Klaehn, JR (reprint author), Idaho Natl Lab, Idaho Falls, ID USA.
EM John.Klaehn@inl.gov
NR 27
TC 4
Z9 4
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0927-5193
BN 978-0-44-453729-4
J9 MEMBR SCI TECH SER
PY 2011
VL 14
BP 295
EP 307
PG 13
WC Microbiology
SC Microbiology
GA BCR93
UT WOS:000311224100014
ER
PT J
AU Mioduszewski, J
Yu, XY
Morris, V
Berkowitz, C
Flaherty, J
AF Mioduszewski, John
Yu, Xiao-Ying
Morris, Victor
Berkowitz, Carl
Flaherty, Julia
TI In-situ monitoring of trace gases in a non-urban environment
SO ATMOSPHERIC POLLUTION RESEARCH
LA English
DT Article
DE Trace gas; HYSPLIT; Non-urban environment; Ozone
ID UNITED-STATES; SURFACE OZONE; NITROGEN-DIOXIDE; UK; TROPOSPHERE;
ATMOSPHERE; DEPENDENCE; CHEMISTRY; OXIDANT; RATES
AB A set of commercial instruments measuring carbon monoxide (CO), ozone (O-3), sulfur dioxide (SO2), and nitrogen oxides [nitric oxide (NO), nitrogen dioxide (NO2), and odd nitrogens (NOX)] was integrated and deployed in a non-urban environment. The deployment occurred between July 2, 2007 and August 7, 2007 in Richland, WA. The mixing ratios of all species were lower than in most rural-suburban environments, and strong diurnal patterns were observed. NO2 was depleted by photochemically formed ozone during the day and replenished at night as ozone was destroyed. The highest ozone concentration during these episodes was 45 ppb. The overall average was 15 ppb with readings approaching near zero at times. This observation is low compared to average daytime summer readings of 60-80 ppb in highly populated and industrialized urban areas in the Pacific Northwest region. Back-trajectory analysis and prevailing weather conditions both indicated that much of the ozone was transported locally or was produced in-situ. Analysis of SO2 as a tracer for O-3 advection further indicated lack of long-range regional transport of pollutants to Richland. We also present results of analysis of high ozone episodes and comparisons relative to other areas in the Pacific Northwest region. These results provide a useful sample data set to study the historical record of air quality in rural Eastern Washington. (C) Author(s) 2011. This work is distributed under the Creative Commons Attribution 3.0 License.
C1 [Mioduszewski, John; Yu, Xiao-Ying; Morris, Victor; Berkowitz, Carl; Flaherty, Julia] Pacific NW Natl Lab, Atmospher Sci & Global Change Div, Richland, WA 99354 USA.
RP Yu, XY (reprint author), Pacific NW Natl Lab, Atmospher Sci & Global Change Div, Richland, WA 99354 USA.
EM xiaoying.yu@pnl.gov
RI Yu, Xiao-Ying/L-9385-2013
OI Yu, Xiao-Ying/0000-0002-9861-3109
FU Office of Science and Engineering Education; Atmospheric Science and
Global Change Division at the Pacific Northwest National Laboratory,
Department of Energy; PNNL's Science Undergraduate Laboratory Internship
program; Office of Science (BER), U.S. Department of Energy under
Atmospheric Science Program under Pacific Northwest National Laboratory
[DE-AC05-76RL01830]
FX This work was supported by the Office of Science and Engineering
Education and the Atmospheric Science and Global Change Division at the
Pacific Northwest National Laboratory, Department of Energy. John
Mioduszewski would like to thank Karen Wieda of PNNL's Science
Undergraduate Laboratory Internship program for her financial support of
the internship for John Mioduszewski. Support was also from the Office
of Science (BER), U.S. Department of Energy, under the auspices of the
Atmospheric Science Program, under Contracts DE-AC05-76RL01830 at the
Pacific Northwest National Laboratory.
NR 32
TC 2
Z9 2
U1 1
U2 10
PU TURKISH NATL COMMITTEE AIR POLLUTION RES & CONTROL-TUNCAP
PI BUCA
PA DOKUZ EYLUL UNIV, DEPT ENVIRONMENTAL ENGINEERING, TINAZTEPE CAMPUS,
BUCA, IZMIR 35160, TURKEY
SN 1309-1042
J9 ATMOS POLLUT RES
JI Atmos. Pollut. Res.
PD JAN
PY 2011
VL 2
IS 1
BP 89
EP 98
DI 10.5094/APR.2011.011
PG 10
WC Environmental Sciences
SC Environmental Sciences & Ecology
GA 029QI
UT WOS:000310510200011
ER
PT S
AU Nichols, EM
Weissmann, GS
Wawrzyniec, TF
Frechette, JD
Klise, KA
AF Nichols, Elizabeth M.
Weissmann, Gary S.
Wawrzyniec, Timothy F.
Frechette, Jedediah D.
Klise, Katherine A.
BE Martinsen, OJ
Pulham, AJ
Haughton, PDW
Sullivan, MD
TI PROCESSING OF OUTCROP-BASED LIDAR IMAGERY TO CHARACTERIZE HETEROGENEITY
FOR GROUNDWATER MODELS
SO OUTCROPS REVITALIZED: TOOLS, TECHNIQUES AND APPLICATIONS
SE CONCEPTS IN SEDIMENTOLOGY AND PALEONTOLOGY
LA English
DT Proceedings Paper
CT SEPM Research Conference on Outcrops Revitalized - Tools, Techniques and
Application
CY JUN 22-28, 2008
CL Kilkee, IRELAND
SP Chevron, Nexen, Statoil, UCD Dublin
ID BOUNDING SURFACES; FLUVIAL DEPOSITS; PERMEABILITY; ANALOG; CEMENTATION;
SIMULATION; DISPERSION; RESOLUTION; PATTERNS; GERMANY
AB Accurate representation of heterogeneity at varying scales is vital for modeling solute dispersion in groundwater aquifers and petroleum reservoirs. Dispersion, the result of varying velocities in a flow field, is, in part, due to material heterogeneity. In order to represent the influence of heterogeneity at the outcrop scale, a series of terrestrial LIDA R scans at millimeter-scale point spacing were recorded in sediments located in braided stream exposures west of Albuquerque, New Mexico, and outside the Hanford Site in Washington. Scans are projected onto a vertical plane and converted to a high-resolution TIFF image. Using the mean and standard deviation of the "stacked" images, the data are processed through a series of filters to enhance textural information and distinguish between lithologies. The product is converted to a grid with numerical color values for each lithology (e.g., sandstone, gravel). Each lithologic class is assigned reasonable values of hydraulic conductivity. Groundwater flow and transport time are simulated using MODFLOW and MODPATH, respectively. Simulations show that flow and solute transport are focused in the coarser-grained laminae of cross-bedded units. Flow may be focused into some areas in finer-grained beds as well, if the adjacent gravel bed has been cut. Thus, most of the flow may be focused into a smaller volume of the material making up the aquifer. This result shows that terrestrial LIDAR can be successfully applied to produce synthetic stratigraphy for use in fluid flow models.
C1 [Nichols, Elizabeth M.; Weissmann, Gary S.; Wawrzyniec, Timothy F.; Frechette, Jedediah D.] Univ New Mexico, Dept Earth & Planetary Sci, Albuquerque, NM 87131 USA.
[Klise, Katherine A.] Sandia Natl Labs, Natl Secur Applicat Dept, Albuquerque, NM 87185 USA.
RP Nichols, EM (reprint author), Univ New Mexico, Dept Earth & Planetary Sci, MSC03 2040,1 Univ New Mexico, Albuquerque, NM 87131 USA.
NR 36
TC 4
Z9 4
U1 0
U2 2
PU S E P M - SOC SEDIMENTARY GEOLOGY
PI TULSA
PA PO BOX 4756 1731 E 71ST ST, TULSA, OK 74159-0756 USA
SN 1059-8618
BN 978-1-56576-306-7
J9 CONCEPT SEDIMENTOL P
JI Concepts Sedimentol. Paleontol.
PY 2011
IS 10
BP 239
EP 247
PG 9
WC Geology; Paleontology
SC Geology; Paleontology
GA BCC27
UT WOS:000309691300016
ER
PT J
AU Hetland, L
Winner, E
AF Hetland, Lois
Winner, Ellen
BE SeftonGreen, J
Thomson, P
Jones, K
Bresler, L
TI The relationship between creativity and Studio Thinking
SO ROUTLEDGE INTERNATIONAL HANDBOOK OF CREATIVE LEARNING
SE Routledge International Handbooks
LA English
DT Article; Book Chapter
C1 [Hetland, Lois; Winner, Ellen] Harvard Project Zero, Boston, MA USA.
[Hetland, Lois] Massachusetts Coll Art & Design, Boston, MA USA.
[Winner, Ellen] Boston Coll, Chestnut Hill, MA 02167 USA.
[Hetland, Lois] US DOE Funded Res Alameda Cty, Alameda, CA USA.
RP Hetland, L (reprint author), Natl Sci Fdn, Study Testing Relationship Visual Arts & Geometry, 4201 Wilson Blvd, Arlington, VA 22230 USA.
NR 14
TC 1
Z9 1
U1 1
U2 1
PU TAYLOR & FRANCIS LTD
PI LONDON
PA 11 NEW FETTER LANE, LONDON EC4P 4EE, ENGLAND
BN 978-1-136-73004-7
J9 ROUT INT HANDB
PY 2011
BP 226
EP 233
PG 8
WC Education & Educational Research
SC Education & Educational Research
GA BCD13
UT WOS:000309815500027
ER
PT S
AU Matsunaga, T
Singh, M
Asthana, R
Lin, HT
Kajii, S
Ishikawa, T
AF Matsunaga, Tadashi
Singh, Mrityunjay
Asthana, Rajiv
Lin, Hua-Tay
Kajii, Shinji
Ishikawa, Toshihiro
BA Cheng, YB
BF Cheng, YB
BE Goto, T
Akatsu, T
TI Microstructure and Mechanical Properties of Joints in Sintered SiC
Fiber-Bonded Ceramics
SO ADVANCED ENGINEERING CERAMICS AND COMPOSITES
SE Key Engineering Materials
LA English
DT Proceedings Paper
CT 4th International Symposium on Advanced Ceramics (ISAC-4)
CY NOV 14-18, 2010
CL Osaka, JAPAN
SP Japan Soc Promot Sci, Ceram Soc Japan, Engn Ceram Div
DE Active Brazing; Ceramic Matrix Composites (CMC); Microstructure;
Micro-indentation
ID CU-CLAD-MOLYBDENUM; BRAZED JOINTS; HIGH-STRENGTH; FILLER METAL;
COMPOSITES; TITANIUM; CARBON; ALUMINA; ALLOYS; SYSTEM
AB Active metal brazing of a new high thermal conductivity SiC-polycrystalline fiber-bonded ceramic (SA-Tyrannohex (TM)) has been conducted using a Ti-containing Ag-Cu active braze alloy (Ticusil (R)). The brazed joints were characterized using SEM-EDS and Knoop hardness scans across the interfaces. The effects of fiber orientation in the composite on the microstructure, elemental composition, and microhardness are presented. Results show that this material can be successfully joined using judiciously selected off-the shelf active braze alloys to yield metallurgically sound joints possessing high integrity.
C1 [Matsunaga, Tadashi; Kajii, Shinji; Ishikawa, Toshihiro] Ube Ind Ltd, Ube, Yamaguchi, Japan.
[Singh, Mrityunjay] Ohio Aerosp Inst, Cleveland, OH USA.
[Asthana, Rajiv] Univ Wisconsin Stout, Menomonie, WI 53706 USA.
[Lin, Hua-Tay] Oak Ridge Natl Lab, Oak Ridge, TN USA.
RP Matsunaga, T (reprint author), Ube Ind Ltd, Ube, Yamaguchi, Japan.
EM matsunagat@ornl.gov; mritynjay.singh-1@nasa.gov; AsthanaR@uwstout.edu;
linh@ornl.gov; 27500u@ube-ind.co.jp; 24613u@ube-ind.co.jp
FU DOE [NFE-08-01754, DE-AC05-00OR22725]
FX The authors thank the very helpful review and inputs from Drs. Y. Katoh
and J. G. Hemrick. Research sponsored under DOE Work-for-Others project
NFE-08-01754 administered by UT-Battelle, LLC under DOE contract
DE-AC05-00OR22725.
NR 21
TC 3
Z9 3
U1 0
U2 7
PU TRANS TECH PUBLICATIONS LTD
PI DURNTEN-ZURICH
PA KREUZSTRASSE 10, 8635 DURNTEN-ZURICH, SWITZERLAND
SN 1013-9826
J9 KEY ENG MATER
PY 2011
VL 484
BP 9
EP +
DI 10.4028/www.scientific.net/KEM.484.9
PG 3
WC Materials Science, Ceramics; Materials Science, Composites
SC Materials Science
GA BBX67
UT WOS:000308568000002
ER
PT S
AU Young, N
Johnson, J
Ewsuk, K
AF Young, Nathan
Johnson, Jay
Ewsuk, Kevin
BA Cheng, YB
BF Cheng, YB
BE Goto, T
Akatsu, T
TI Microelectronics Package Design Using Experimentally-Validated Modeling
and Simulation
SO ADVANCED ENGINEERING CERAMICS AND COMPOSITES
SE Key Engineering Materials
LA English
DT Proceedings Paper
CT 4th International Symposium on Advanced Ceramics (ISAC-4)
CY NOV 14-18, 2010
CL Osaka, JAPAN
SP Japan Soc Promot Sci, Ceram Soc Japan, Engn Ceram Div
DE Microelectronics; Thermal Management; LTCC; Packaging; RFIC
ID THERMAL-CONDUCTIVITY
AB Packaging high power radio frequency integrated circuits (RFICs) in low temperature cofired ceramic (LTCC) presents many challenges. Within the constraints of LTCC fabrication, the design must provide the usual electrical isolation and interconnections required to package the IC, with additional consideration given to RF isolation and thermal management. While iterative design and prototyping is an option for developing RFIC packaging, it would be expensive and most likely unsuccessful due to the complexity of the problem. To facilitate and optimize package design, thermal and mechanical simulations were used to understand and control the critical parameters in LTCC package design. The models were validated through comparisons to experimental results. This paper summarizes an experimentally-validated modeling approach to RFIC package design, and presents some results and key findings.
C1 [Young, Nathan; Johnson, Jay; Ewsuk, Kevin] Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Young, N (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
EM npyoung@sandia.gov; jjohns2@sandia.gov; kgewsuk@sandia.gov
NR 8
TC 0
Z9 0
U1 0
U2 0
PU TRANS TECH PUBLICATIONS LTD
PI STAFA-ZURICH
PA LAUBLSRUTISTR 24, CH-8717 STAFA-ZURICH, SWITZERLAND
SN 1013-9826
J9 KEY ENG MATER
PY 2011
VL 484
BP 192
EP 203
DI 10.4028/www.scientific.net/KEM.484.192
PG 12
WC Materials Science, Ceramics; Materials Science, Composites
SC Materials Science
GA BBX67
UT WOS:000308568000034
ER
PT S
AU Ueno, S
Ohji, T
Lin, HT
AF Ueno, Shunkichi
Ohji, Tatsuki
Lin, Hua-Tay
BA Cheng, YB
BF Cheng, YB
BE Goto, T
Akatsu, T
TI Comparison of Recession Behavior between Lu2Si2O7 and Lu2SiO5 by High
Speed Steam Jet at High Temperatures
SO ADVANCED ENGINEERING CERAMICS AND COMPOSITES
SE Key Engineering Materials
LA English
DT Proceedings Paper
CT 4th International Symposium on Advanced Ceramics (ISAC-4)
CY NOV 14-18, 2010
CL Osaka, JAPAN
SP Japan Soc Promot Sci, Ceram Soc Japan, Engn Ceram Div
DE Corrosion; Recession; Lu2SiO5; Lu2Si2O7; Steam Jet
ID SILICON-NITRIDE
AB The recession behavior of Lu2SiO5 and Lu2Si2O7 under high speed steam jet with a velocity of 50 m/s in temperature range between 1300 degrees and 1500 degrees C was compared. Material recession and porous microstructure were observed on the bulk surface for all samples after steam jet tests at the elevated temperatures. The porous structure for Lu2Si2O7 bulk samples become refine with increasing test temperature. On the other hand, the porosity of the porous structure for Lu2SiO5 bulk samples reduced with increasing test temperatures. Phase change was observed for the test of Lu2Si2O7 sample. Lu2SiO5 phase was formed on the Lu2Si2O7 bulk surface in the 1400 degrees C test and Lu2Si2O7 phase was formed again on the surface of the bulk in the test at 1500 degrees C. No phase change was observed in the tests for Lu2SiO5 between 1300 degrees and 1500 degrees C.
C1 [Ueno, Shunkichi] Nihon Univ, Coll Engn, Tokusada Nakagawahara 1, Koriyama, Fukushima 9638806, Japan.
[Ohji, Tatsuki] Natl Inst Adv Ind Sci & Technol, Adv Mfg Res Inst, Nagoya, Aichi, Japan.
[Lin, Hua-Tay] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA.
RP Ueno, S (reprint author), Nihon Univ, Coll Engn, Tokusada Nakagawahara 1, Koriyama, Fukushima 9638806, Japan.
EM ueno@chem.ce.nihon-u.ac.jp; t-ohji@aist.go.jp; linh@ornl.gov
NR 7
TC 2
Z9 2
U1 0
U2 2
PU TRANS TECH PUBLICATIONS LTD
PI DURNTEN-ZURICH
PA KREUZSTRASSE 10, 8635 DURNTEN-ZURICH, SWITZERLAND
SN 1013-9826
J9 KEY ENG MATER
PY 2011
VL 484
BP 246
EP +
DI 10.4028/www.scientific.net/KEM.484.246
PG 2
WC Materials Science, Ceramics; Materials Science, Composites
SC Materials Science
GA BBX67
UT WOS:000308568000041
ER
PT B
AU Sim, A
Gunter, D
Natarajan, V
Shoshani, A
Williams, D
Long, J
Hick, J
Lee, J
Dart, E
AF Sim, Alex
Gunter, Dan
Natarajan, Vijaya
Shoshani, Arie
Williams, Dean
Long, Jeff
Hick, Jason
Lee, Jason
Dart, Eli
BE Lin, SC
Yen, E
TI Efficient Bulk Data Replication for the EarthSystem Grid
SO DATA DRIVEN E-SCIENCE, ISGC 2010: USE CASES AND SUCCESSFUL APPLICATIONS
OF DISTRIBUTED COMPUTING INFRASTRUCTURES
LA English
DT Proceedings Paper
CT International Symposium on Grid Computing
CY MAR 09-12, 2010
CL Academia Sinica, Taipei, TAIWAN
HO Academia Sinica
DE ESG; climate; BDM; data transfer; NetLogger
AB The Earth System Grid (ESG) community faces the difficult challengeof managing the distribution of massive data sets to thousands of scientistsaround the world. To move data replicas efficiently, the ESG has developed a data transfer management tool called the Bulk Data Mover (BDM). We describe the performance results of the current system and plans towards extending the techniques developed so far for the upcoming project, in which the ESG will employ 100Gbps networks to move multi-TBdatasets with the ultimate goal of helping researchers understand climatechange and its potential impacts on world ecology and society.
C1 [Sim, Alex; Gunter, Dan; Natarajan, Vijaya; Shoshani, Arie] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Williams, Dean; Long, Jeff] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Hick, Jason; Lee, Jason] Natl Energy Res Sci Comp Ctr, Berkeley, CA 94720 USA.
[Dart, Eli] Energy Sci Network, Berkeley, CA 94720 USA.
RP Sim, A (reprint author), Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
FU Office of Advanced ScientificComputing Research, Office of Science, U.S.
Department of Energy [DE-AC02- 05CH11231]
FX This work was funded in part by the Office of Advanced
ScientificComputing Research, Office of Science, U.S. Department of
Energy, under contracts DE-AC02- 05CH11231.
NR 1
TC 0
Z9 0
U1 1
U2 1
PU SPRINGER
PI NEW YORK
PA 233 SPRING STREET, NEW YORK, NY 10013, UNITED STATES
BN 978-1-4419-8014-4; 978-1-4419-8013-7
PY 2011
BP 435
EP 444
DI 10.1007/978-1-4419-8014-4_33
PG 10
WC Computer Science, Information Systems; Computer Science, Theory &
Methods
SC Computer Science
GA BCJ90
UT WOS:000310340000032
ER
PT S
AU Marinella, MJ
Atcitty, S
DasGupta, S
Kaplar, RJ
Smith, MA
AF Marinella, M. J.
Atcitty, S.
DasGupta, S.
Kaplar, R. J.
Smith, M. A.
BE Shenai, K
Garg, R
Ma, R
Dudley, M
Khan, A
TI High Power Semiconductor Devices for FACTS: Current State of the Art and
Opportunities for Advanced Materials
SO GALLIUM NITRIDE AND SILICON CARBIDE POWER TECHNOLOGIES
SE ECS Transactions
LA English
DT Proceedings Paper
CT Symposium on GaN and SiC Power Technologies held during the 220th
Meeting of the Electrochemical-Society
CY OCT 09-14, 2011
CL Boston, MA
SP Electrochem Soc (ECS), Dielect Sci & Technol, Elect & Photon
AB Flexible AC Transmission Systems (FACTS) use advanced power electronics to minimize reactive power loss on the grid. Power devices used in FACTS systems must be capable of switching several thousand amps at voltages of 1-10 kV. Traditionally, these systems have relied on silicon thyristors, but recently have also began to incorporate insulated gate bipolar transistors. FACTS systems present an opportunity for emerging SiC and GaN power transistors, which offer major efficiency gains. However, for these advanced materials to be considered for use in high consequence grid level systems like FACTS controllers, excellent reliability must be demonstrated.
C1 [Marinella, M. J.; Atcitty, S.; DasGupta, S.; Kaplar, R. J.; Smith, M. A.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Marinella, MJ (reprint author), Sandia Natl Labs, POB 5800,MS 1084, Albuquerque, NM 87185 USA.
NR 10
TC 1
Z9 1
U1 0
U2 0
PU ELECTROCHEMICAL SOC INC
PI PENNINGTON
PA 65 S MAIN ST, PENNINGTON, NJ 08534-2839 USA
SN 1938-5862
BN 978-1-60768-262-2
J9 ECS TRANSACTIONS
PY 2011
VL 41
IS 8
BP 19
EP 30
DI 10.1149/1.3631482
PG 12
WC Electrochemistry; Engineering, Electrical & Electronic; Physics, Applied
SC Electrochemistry; Engineering; Physics
GA BCB39
UT WOS:000309600300003
ER
PT S
AU Xu, F
Tolbert, LM
Xu, Y
AF Xu, Fan
Tolbert, Leon M.
Xu, Yan
GP IEEE
TI Critical Evaluation of FBD, PQ and Generalized Non-Active Power Theories
SO PROCEEDINGS OF THE 2011-14TH EUROPEAN CONFERENCE ON POWER ELECTRONICS
AND APPLICATIONS (EPE 2011)
SE European Conference on Power Electronics and Applications
LA English
DT Proceedings Paper
CT 14th European Conference on Power Electronics and Applications
(EPE)/ECCE Europe Conference on Power Electronics and Adjustable Speed
Drives - Towards the 20-20-20 Target
CY AUG 30-SEP 01, 2011
CL Birmingham, ENGLAND
SP IEEE, IEEE Power Elect Soc (PELS), Alstom, Mitsubishi Elect Europ, Star Alliance, PPM Power, Plexim, CITCEA, Dynex, TRW Conekt, MDL Technol, Chroma, United Technol Res Ctr, Converteam, Australian Comm Power Engn (ACPE), Assoc Ingenieurs Electriciens Inst Montefiore (AIM), Czech Electrotech Soc (CES), European Ctr Power Elect (ECPE), IEEE Ind Applicat Soc (IAS), IEEE Ind Elect Soc (IES), Inst Engn & Technol (IET), Korean Inst Power Elect (KIPE), Koninklijk Inst Ingenieurs (KIVI-NIRIA), Leonardo Energy, Norsk Elektroteknisk Forening (NEF), NMI, Osterreichischer Verband Elektrotechnik (OVE), Soc Elect, Elect & Technol Informat & Commun (SEE), Assoc Polish Elect Engineers, Svenska Elektro Dataingenjorers Riksforening (SER), Soc Royale Belge Electriciens - Koninklijke Belgische Vereniging Elektrotechnici (SRBE-KBVE), Technol Inst - Koninklijke Vlaamse Ingenieursvereniging (TI-KVIV), Assoc Elect, Elect & Informat Technol
DE FBD theory; PQ theory; Generalized non-active power theory; Current
decomposition; Non-active power compensation
ID SYSTEMS
AB Due to the widespread use of non-sinusoidal, non-periodic loads and the existence of distorted voltages, many definitions of non-active power for non-sinusoidal and non-periodic waveforms have been formulated. This paper investigates the major similarities and discrepancies of three non-active power theories which are widely used in control algorithms for shunt compensation systems. The three approaches are FBD, PQ and generalized non-active power theories. The evaluation and comparison of these three theories as the non-active power compensation strategies for single-phase system, three-phase system with unbalanced load, sub-harmonic load, and distorted system voltage will be included in this paper. The conclusions are based on both the simulation and the experimental results of different compensation objectives.
C1 [Xu, Fan; Tolbert, Leon M.] Univ Tennessee, Knoxville, TN 37996 USA.
[Tolbert, Leon M.; Xu, Yan] Oak Ridge Natl Lab, POB 2008, Oak Ridge, TN 37831 USA.
RP Xu, F (reprint author), Univ Tennessee, Knoxville, TN 37996 USA.
EM fxu6@utk.edu
NR 17
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2325-0313
BN 978-90-75815-15-3
J9 EUR CONF POW ELECTR
PY 2011
PG 10
WC Engineering, Electrical & Electronic
SC Engineering
GA BBR85
UT WOS:000308003501044
ER
PT S
AU Bennett, J
Sridhar, S
Nakano, J
Kwong, KS
Lam, T
Kaneko, T
Fernandez, L
Komolwit, P
Thomas, H
Krabbe, R
AF Bennett, James
Sridhar, Seetharaman
Nakano, Jinichiro
Kwong, Kyei-Sing
Lam, Tom
Kaneko, Tetsuya
Fernandez, Laura
Komolwit, Piyamanee
Thomas, Hugh
Krabbe, Rick
BE Sundaram, SK
Fox, K
Ohji, T
Hoffman, E
TI SLAG CHARACTERIZATION FOR THE DEVELOPMENT OF NEW AND IMPROVED SERVICE
LIFE MATERIALS IN GASIFIERS USING FLEXIBLE CARBON FEEDSTOCK
SO ADVANCES IN MATERIALS SCIENCE FOR ENVIRONMENTAL AND NUCLEAR TECHNOLOGY
II
SE Ceramic Transactions
LA English
DT Proceedings Paper
CT Conference and Exhibition of Materials Science and Technology (MS and T)
CY OCT 17-21, 2010
CL Houston, TX
ID PETROLEUM COKE; COAL GASIFICATION; ASH; REFRACTORIES
AB In modern gasifiers, the carbon feedstock (coal, petcoke and/or biomass) is determined largely by carbon content, cost, availability, and environmental concerns. Ash impurities in the carbon feedstock vary widely in quantity and chemistry, impacting gasifier operation. Ash from mineral impurities in the feedstock liquefy at the elevated temperatures of gasification; impacting slag chemistry, viscosity, melting temperature, surface and interfacial tension - ultimately determining gasifier operating temperature and refractory service life. The slag itself experiences wide variations in the relative fraction and state of crystalline material (oxides, sulfides and metallic), non-crystalline (glass) material, or gas phases formed from feedstock ash. It is these variations that have a critical impact gasifier operation, determining slag fluidity along the walls and the chemical and physical stability (wear) of the refractory liner. In this paper, two aspects of joint research between NETL and CMU on slag and slag/refractory interactions will be discussed. The first area is researching phase formation in synthetic petcoke/coal slag (SiO2-Al2O3-Fe2O3-CaO-V2O3) under simulated gasification conditions (1500 degrees C and 10(-8) arm oxygen partial pressure). The second area focuses on interactions between coal and petcoke slags with commercial refractory currently used (high chrome oxide) or having the potential for use as a gasifier liner (high alumina). Refractory materials studied in the simulated gasifier environment were fired brick of the following compositions: 90wt% Cr2O3-10wt% Al2O3 and 100wt% Al2O3. Information from this research is being used to improve the performance of or to develop new refractory liner materials for gasifiers, and to understand mixed feedstock slag behavior under gasification conditions.
C1 [Bennett, James; Sridhar, Seetharaman; Nakano, Jinichiro; Kwong, Kyei-Sing; Lam, Tom; Kaneko, Tetsuya; Fernandez, Laura; Komolwit, Piyamanee; Thomas, Hugh; Krabbe, Rick] US DOE, Natl Energy Technol Lab, Albany, OR 97321 USA.
RP Bennett, J (reprint author), US DOE, Natl Energy Technol Lab, 1450 Queen Ave, Albany, OR 97321 USA.
NR 17
TC 0
Z9 0
U1 2
U2 6
PU AMER CERAMIC SOC
PI WESTERVILLE
PA 735 CERAMIC PLACE, WESTERVILLE, OH 43081-8720 USA
SN 1042-1122
BN 978-1-118-14449-7
J9 CERAM TRANS
PY 2011
VL 227
BP 3
EP 16
PG 14
WC Energy & Fuels; Materials Science, Ceramics
SC Energy & Fuels; Materials Science
GA BCD98
UT WOS:000309926700001
ER
PT S
AU Liu, WN
Sun, X
Stephens, E
Khaleel, M
AF Liu, Wenning
Sun, Xin
Stephens, Elizabeth
Khaleel, Moe
BE Sundaram, SK
Fox, K
Ohji, T
Hoffman, E
TI EFFECT OF SURFACE CONDITION ON SPALLATION BEHAVIOR OF OXIDE SCALE ON SS
441 SUBSTRATE USED IN SOFC
SO ADVANCES IN MATERIALS SCIENCE FOR ENVIRONMENTAL AND NUCLEAR TECHNOLOGY
II
SE Ceramic Transactions
LA English
DT Proceedings Paper
CT Conference and Exhibition of Materials Science and Technology (MS and T)
CY OCT 17-21, 2010
CL Houston, TX
ID FUEL-CELLS; METALLIC INTERCONNECTS; STRESSES; GROWTH; ALLOY; OXIDATION;
STEEL
AB As operating temperature of SOFC decreases, ferritic stainless steel has attracted a great deal of attention for its use as an interconnect in SOFCs because of its gas-tightness, low electrical resistivity, ease of fabrication, and cost-effectiveness. However, oxidation reaction of the metallic interconnects in a typical SOFC working environment is unavoidable. The growth stresses in the oxide scale and on the scale/substrate interface combined with the thermal stresses induced by thermal expansion coefficient mismatch between the oxide scale and the substrate may lead to scale delamination/buckling and eventual spallation during stack cooling, which can lead to serious cell performance degradation. Therefore, the interfacial adhesion strength between the oxide scale and substrate is crucial to the reliability and durability of the metallic interconnect in SOFC operating environments. In this paper, we investigated the effect of the surface conditions on the interfacial strength of oxide scale and SS441 substrate experimentally. Contrary to the conventional sense, it was found that rough surface of SS441 substrate will decrease the interfacial adhesive strength of the oxide scale and SS441 substrate.
C1 [Liu, Wenning; Sun, Xin; Stephens, Elizabeth; Khaleel, Moe] Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Liu, WN (reprint author), Pacific NW Natl Lab, POB 999,906 Battelle Blvd, Richland, WA 99352 USA.
OI khaleel, mohammad/0000-0001-7048-0749
NR 17
TC 0
Z9 0
U1 0
U2 5
PU AMER CERAMIC SOC
PI WESTERVILLE
PA 735 CERAMIC PLACE, WESTERVILLE, OH 43081-8720 USA
SN 1042-1122
BN 978-1-118-14449-7
J9 CERAM TRANS
PY 2011
VL 227
BP 81
EP 86
PG 6
WC Energy & Fuels; Materials Science, Ceramics
SC Energy & Fuels; Materials Science
GA BCD98
UT WOS:000309926700009
ER
PT S
AU Liu, WN
Sun, X
Marina, O
Pederson, L
Khaleel, M
AF Liu, Wenning
Sun, Xin
Marina, Olga
Pederson, Larry
Khaleel, Moe
BE Sundaram, SK
Fox, K
Ohji, T
Hoffman, E
TI EFFECT OF FUEL IMPURITY ON STRUCTURAL INTEGRITY OF Ni-YSZ ANODE OF SOFCS
SO ADVANCES IN MATERIALS SCIENCE FOR ENVIRONMENTAL AND NUCLEAR TECHNOLOGY
II
SE Ceramic Transactions
LA English
DT Proceedings Paper
CT Conference and Exhibition of Materials Science and Technology (MS and T)
CY OCT 17-21, 2010
CL Houston, TX
ID HYDROGEN-SULFIDE ADSORPTION; CELLS; PHOSPHORUS; SYNGAS; ENERGY; GAS
AB Electricity production through the integration of coal gasification with solid oxide fuel cells (SOFCs) may potentially be an efficient technique for clean energy generation. However, multiple minor and trace components are naturally present in coals. These impurities in coal gas not only degrade the electrochemical performance of Ni-YSZ anode used in SOFCs, but also severely endanger the structural integrity of the Ni-YSZ anode. In this paper, the effect of trace impurity in coal syngas on the mechanical degradation of Ni-YSZ anode was studied by using an integrated experimental/modeling approach. Phosphorus is taken as an example of impurity. Anode-support button cell was used to experimentally explore the migration of phosphorous impurity in the Ni-YSZ anode of SOFCs. X-ray mapping was used to show elemental distributions and new phase formation. The subsequent finite element stress analyses were conducted using the actual micro structure of the anode to illustrate the degradation mechanism. It was found that volume expansion induced by the Ni phase change produces high stress level such that local failure of the Ni-YSZ anode is possible under the operating conditions.
C1 [Liu, Wenning; Sun, Xin; Marina, Olga; Pederson, Larry; Khaleel, Moe] Pacific NW Natl Lab, Richland, WA 99354 USA.
RP Liu, WN (reprint author), Pacific NW Natl Lab, POB 999,902 Battelle Blvd, Richland, WA 99354 USA.
OI khaleel, mohammad/0000-0001-7048-0749
NR 36
TC 0
Z9 0
U1 0
U2 0
PU AMER CERAMIC SOC
PI WESTERVILLE
PA 735 CERAMIC PLACE, WESTERVILLE, OH 43081-8720 USA
SN 1042-1122
BN 978-1-118-14449-7
J9 CERAM TRANS
PY 2011
VL 227
BP 87
EP 100
PG 14
WC Energy & Fuels; Materials Science, Ceramics
SC Energy & Fuels; Materials Science
GA BCD98
UT WOS:000309926700010
ER
PT S
AU Cozzi, AD
Duncan, AJ
AF Cozzi, A. D.
Duncan, A. J.
BE Sundaram, SK
Fox, K
Ohji, T
Hoffman, E
TI CHARACTERIZATION OF CORE SAMPLE COLLECTED FROM THE SALTSTONE DISPOSAL
FACILITY
SO ADVANCES IN MATERIALS SCIENCE FOR ENVIRONMENTAL AND NUCLEAR TECHNOLOGY
II
SE Ceramic Transactions
LA English
DT Proceedings Paper
CT Conference and Exhibition of Materials Science and Technology (MS and T)
CY OCT 17-21, 2010
CL Houston, TX
AB During the month of September 2008, grout core samples were collected from the Saltstone Disposal Facility, Vault 4, cell E. This grout was placed during processing campaigns in December 2007. Core samples were retrieved to initiate the historical database of properties of emplaced Saltstone and to demonstrate the correlation between field collected and laboratory prepared samples.
The density and porosity of the Vault 4 core sample, 1.90 g/cm(3) and 59.90% respectively, were comparable to values achieved for laboratory prepared samples. X-ray diffraction analysis identified phases consistent with the expectations for hydrated Saltstone. Microscopic analysis revealed morphology features characteristic of cementitious materials with fly ash and calcium silicate hydrate gel.
When taken together, the results of the density, porosity, x-ray diffraction analysis and microscopic analysis support the conclusion that the Vault 4, Cell E core sample is representative of the expected waste form.
C1 [Cozzi, A. D.; Duncan, A. J.] Savannah River Natl Lab, Aiken, SC USA.
RP Cozzi, AD (reprint author), Savannah River Natl Lab, Aiken, SC USA.
NR 15
TC 1
Z9 1
U1 0
U2 0
PU AMER CERAMIC SOC
PI WESTERVILLE
PA 735 CERAMIC PLACE, WESTERVILLE, OH 43081-8720 USA
SN 1042-1122
BN 978-1-118-14449-7
J9 CERAM TRANS
PY 2011
VL 227
BP 135
EP 147
PG 13
WC Energy & Fuels; Materials Science, Ceramics
SC Energy & Fuels; Materials Science
GA BCD98
UT WOS:000309926700014
ER
PT S
AU Fox, KM
Johnson, FC
Edwards, TB
AF Fox, K. M.
Johnson, F. C.
Edwards, T. B.
BE Sundaram, SK
Fox, K
Ohji, T
Hoffman, E
TI INCORPORATION OF MONO SODIUM TITANATE AND CRYSTALLINE SILICOTITANATE
FEEDS IN HIGH LEVEL NUCLEAR WASTE GLASS
SO ADVANCES IN MATERIALS SCIENCE FOR ENVIRONMENTAL AND NUCLEAR TECHNOLOGY
II
SE Ceramic Transactions
LA English
DT Proceedings Paper
CT Conference and Exhibition of Materials Science and Technology (MS and T)
CY OCT 17-21, 2010
CL Houston, TX
ID VISCOSITY
AB Four series of glass compositions were selected, fabricated, and characterized as part of a study to determine the impacts of the addition of Crystalline Silicotitanate (CST) and Monosodium Titanate (MST) from the Small Column Ion Exchange (SCIX) process on the Defense Waste Processing Facility (DWPF) glass waste form and the applicability of the DWPF process control models. All of the glasses studied were considerably more durable than the benchmark Environmental Assessment (EA) glass. The measured Product Consistency Test (PCT) responses were compared with the predicted values from the current DWPF durability model. One of the KT01-series and two of the KT03-series glasses had measured PCT responses that were outside the lower bound of the durability model. All of the KT04 glasses had durabilities that were predictable regardless of heat treatment or compositional view. In general, the measured viscosity values of the KT01, KT03, and KT04-series glasses are well predicted by the current DWPF viscosity model. The results of liquidus temperature (T-L) measurements for the KT01 -series glasses were mixed with regard to the predictability of the T-L for each glass. All of the measured T-L values were higher than the model predicted values, although most fell within the 95% confidence intervals. Overall, the results of this study show a reasonable ability to incorporate the anticipated SCIX streams into DWPF-type glass compositions with TiO2 concentrations of 4-5 wt % in glass.
C1 [Fox, K. M.; Johnson, F. C.; Edwards, T. B.] Savannah River Natl Lab, Aiken, SC 29808 USA.
RP Fox, KM (reprint author), Savannah River Natl Lab, Aiken, SC 29808 USA.
NR 23
TC 0
Z9 0
U1 0
U2 3
PU AMER CERAMIC SOC
PI WESTERVILLE
PA 735 CERAMIC PLACE, WESTERVILLE, OH 43081-8720 USA
SN 1042-1122
BN 978-1-118-14449-7
J9 CERAM TRANS
PY 2011
VL 227
BP 149
EP 160
PG 12
WC Energy & Fuels; Materials Science, Ceramics
SC Energy & Fuels; Materials Science
GA BCD98
UT WOS:000309926700015
ER
PT S
AU Billings, AL
Brinkman, KS
Fox, KM
Marra, JC
Tang, M
Sickafus, KE
AF Billings, A. L.
Brinkman, K. S.
Fox, K. M.
Marra, J. C.
Tang, M.
Sickafus, K. E.
BE Sundaram, SK
Fox, K
Ohji, T
Hoffman, E
TI DEVELOPMENT OF. CERAMIC WASTE FORMS FOR AN ADVANCED NUCLEAR FUEL CYCLE
SO ADVANCES IN MATERIALS SCIENCE FOR ENVIRONMENTAL AND NUCLEAR TECHNOLOGY
II
SE Ceramic Transactions
LA English
DT Proceedings Paper
CT Conference and Exhibition of Materials Science and Technology (MS and T)
CY OCT 17-21, 2010
CL Houston, TX
AB A series of ceramic waste forms were developed and characterized for the immobilization of a Cesium/Lanthanide (CS/LN) waste stream anticipated to result from nuclear fuel reprocessing. Simple raw materials, including Al2O3 and TiO2 were combined with simulated waste components to produce multiphase ceramics containing hollandite-type phases, perovskites (particularly BaTiO3), pyrochlores and other minor metal titanate phases. Three fabrication methodologies were used, including melting and crystallizing, pressing and sintering, and Spark Plasma Sintering (SPS), with the intent of studying phase evolution under various sintering conditions. X-Ray Diffraction (XRD) and Scanning Electron Microscopy coupled with Energy Dispersive Spectroscopy (SEM/EDS) results showed that the partitioning of the waste elements in the sintered materials was very similar, despite varying stoichiometry of the phases formed. Identification of excess Al2O3 via XRD and SEM/EDS in the first series of compositions led to a Phase II study, with significantly reduced Al2O3 concentrations and increased waste loadings. The Phase II compositions generally contained a reduced amount of unreacted Al2O3 as identified by XRD. Chemical composition measurements showed no significant issues with meeting the target compositions. However, volatilization of Cs and Mo was identified, particularly during melting, since sintering of the pressed pellets and SPS were performed at lower temperatures. Partitioning of some of the waste components was difficult to determine via XRD. SEM/EDS mapping showed that those elements, which were generally present in small concentrations, were well distributed throughout the waste forms.
C1 [Billings, A. L.; Brinkman, K. S.; Fox, K. M.; Marra, J. C.] Savannah River Natl Lab, Aiken, SC USA.
RP Billings, AL (reprint author), Savannah River Natl Lab, Aiken, SC USA.
OI Brinkman, Kyle/0000-0002-2219-1253
NR 10
TC 1
Z9 1
U1 2
U2 14
PU AMER CERAMIC SOC
PI WESTERVILLE
PA 735 CERAMIC PLACE, WESTERVILLE, OH 43081-8720 USA
SN 1042-1122
BN 978-1-118-14449-7
J9 CERAM TRANS
PY 2011
VL 227
BP 183
EP 193
PG 11
WC Energy & Fuels; Materials Science, Ceramics
SC Energy & Fuels; Materials Science
GA BCD98
UT WOS:000309926700018
ER
PT S
AU Matyas, J
Schaible, M
Vienna, JD
AF Matyas, J.
Schaible, M.
Vienna, J. D.
BE Sundaram, SK
Fox, K
Ohji, T
Hoffman, E
TI DETERMINATION OF STOKES SHAPE FACTOR FOR SINGLE PARTICLES AND
AGGLOMERATES
SO ADVANCES IN MATERIALS SCIENCE FOR ENVIRONMENTAL AND NUCLEAR TECHNOLOGY
II
SE Ceramic Transactions
LA English
DT Proceedings Paper
CT Conference and Exhibition of Materials Science and Technology (MS and T)
CY OCT 17-21, 2010
CL Houston, TX
ID NONSPHERICAL PARTICLES; GLASS
AB Large octahedral crystals of spinel can precipitate from glass during the high-level waste vitrification process and potentially block the glass discharge riser of electrically heated ceramic melters. To help predict the settling behavior of spinel in the riser, the settling of single particles and agglomerates was studied in stagnant and transparent viscosity oils at room temperature with a developed optical particle-dynamics-analyzer. The determined dimensions and terminal settling velocities of particles were used to calculate their Stokes shape factors. The calculated shape factor for the glass beads was almost identical with the theoretical shape factor of 2/9 for a perfect sphere. The shape factor for a single spinel crystal was about 7.6% higher compared to the theoretically predicted value for an octahedron. The Stokes shape factor of irregularly shaped multi-particle agglomerates was lower than that of the glass beads and individual spinel crystals because of the higher surface drag caused by the larger surface area-to-volume ratio.
C1 [Matyas, J.; Schaible, M.; Vienna, J. D.] Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Matyas, J (reprint author), Pacific NW Natl Lab, Richland, WA 99352 USA.
NR 12
TC 2
Z9 2
U1 0
U2 1
PU AMER CERAMIC SOC
PI WESTERVILLE
PA 735 CERAMIC PLACE, WESTERVILLE, OH 43081-8720 USA
SN 1042-1122
BN 978-1-118-14449-7
J9 CERAM TRANS
PY 2011
VL 227
BP 195
EP 202
PG 8
WC Energy & Fuels; Materials Science, Ceramics
SC Energy & Fuels; Materials Science
GA BCD98
UT WOS:000309926700019
ER
PT J
AU Bluhm, H
AF Bluhm, H.
BE Koster, G
Rijnders, G
TI X-ray photoelectron spectroscopy (XPS) for in situ characterization of
thin film growth
SO IN SITU CHARACTERIZATION OF THIN FILM GROWTH
SE Woodhead Publishing in Materials
LA English
DT Article; Book Chapter
DE X-ray photoelectron spectroscopy (XPS); in situ techniques; thin films
ID AMBIENT-PRESSURE; PHOTOEMISSION-SPECTROSCOPY; SURFACE; MGO; HYDROXYL;
SYSTEM
AB X-ray photoelectron spectroscopy (XPS) is an excellent tool for the investigation of the growth and reaction of thin films. Owing to the short mean free path of electrons in condensed matter, XPS is particularly well suited for the measurement of films with thicknesses of up to a few nanometers. XPS allows for the quantitative determining of the elemental composition, chemical specificity (i.e., oxidation state) and film thickness. In this chapter the basics of XPS are described, including different approaches to monitoring in situ film growth and reactions.
C1 Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Chem Sci, Berkeley, CA 94720 USA.
RP Bluhm, H (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Chem Sci, Mail Stop 6R2100, Berkeley, CA 94720 USA.
EM hbluhm@lbl.gov
NR 40
TC 2
Z9 2
U1 1
U2 7
PU WOODHEAD PUBL LTD
PI CAMBRIDGE
PA ABINGTON HALL ABINGTON, CAMBRIDGE CB1 6AH, CAMBS, ENGLAND
BN 978-1-84569-934-5
J9 WOODHEAD PUBL MATER
PY 2011
BP 75
EP 98
D2 10.1533/9780857094957
PG 24
WC Materials Science, Characterization & Testing; Materials Science,
Coatings & Films
SC Materials Science
GA BAX34
UT WOS:000305971000004
ER
PT J
AU Matias, V
Hammond, RH
AF Matias, V.
Hammond, R. H.
BE Koster, G
Rijnders, G
TI In situ deposition vapor monitoring
SO IN SITU CHARACTERIZATION OF THIN FILM GROWTH
SE Woodhead Publishing in Materials
LA English
DT Article; Book Chapter
DE deposition rate monitoring; vapor flux monitor; quartz crystal
microbalance; electron-impact emission spectroscopy; quadrupole mass
spectroscopy; atomic absorption spectroscopy
ID ATOMIC-ABSORPTION SPECTROSCOPY; DIODE-LASER; FLUX MEASUREMENT; FILM
DEPOSITION; QUARTZ-CRYSTAL; EVAPORATION; FREQUENCY; SUPERCONDUCTORS;
COEVAPORATION; TEMPERATURE
AB In situ deposition vapor monitoring is essential for accurate control of film thickness and elemental composition during physical vapor deposition. This chapter describes current state-of-the-art vapor sensing technologies and compares their relative merits. We review the quartz crystal microbalance, vapor ionization and optical absorption measurement techniques.
C1 [Hammond, R. H.] Stanford Univ, Stanford, CA 94305 USA.
[Matias, V.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Hammond, RH (reprint author), Stanford Univ, Stanford, CA 94305 USA.
EM vlado@lanl.gov; rhammond@stanford.edu
NR 38
TC 2
Z9 2
U1 1
U2 1
PU WOODHEAD PUBL LTD
PI CAMBRIDGE
PA ABINGTON HALL ABINGTON, CAMBRIDGE CB1 6AH, CAMBS, ENGLAND
BN 978-1-84569-934-5
J9 WOODHEAD PUBL MATER
PY 2011
BP 212
EP 238
D2 10.1533/9780857094957
PG 27
WC Materials Science, Characterization & Testing; Materials Science,
Coatings & Films
SC Materials Science
GA BAX34
UT WOS:000305971000008
ER
PT J
AU Eres, G
Tischler, JZ
Rouleau, CM
Larson, BC
Christe, HM
Zschack, P
AF Eres, G.
Tischler, J. Z.
Rouleau, C. M.
Larson, B. C.
Christe, H. M.
Zschack, P.
BE Koster, G
Rijnders, G
TI Real-time studies of epitaxial film growth using surface X-ray
diffraction (SXRD)
SO IN SITU CHARACTERIZATION OF THIN FILM GROWTH
SE Woodhead Publishing in Materials
LA English
DT Article; Book Chapter
DE pulsed laser deposition; real-time surface X-ray diffraction; interlayer
transport; single shot transient; perovskite SrTiO3
ID PULSED-LASER DEPOSITION; ENERGY ELECTRON-DIFFRACTION; MOLECULAR-BEAM
EPITAXY; BY-LAYER GROWTH; OXIDE INTERFACES; CRYSTAL-SURFACES;
THIN-FILMS; IN-SITU; OSCILLATIONS; NUCLEATION
AB We review recent results in the study of pulsed laser deposition growth kinetics using real-time surface X-ray diffraction. Interlayer transport as the primary driving force behind formation of atomically sharp layers is analyzed quantitatively from the measurements of time constants and shot-to-shot changes in single laser shot time dependent coverages in the growth of the model perovskite SrTiO3. The results show that direct deposition into the open layers and very fast interlayer transport driven by energetic species during the arrival of the laser plume are the main components of layer growth per laser shot in both homo- and heteroepitaxy of complex oxides.
C1 [Eres, G.; Tischler, J. Z.; Rouleau, C. M.; Larson, B. C.; Christe, H. M.] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA.
[Zschack, P.] Argonne Natl Lab, Adv Photon Source, Xray Sci Div, Argonne, IL 60439 USA.
RP Eres, G (reprint author), Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA.
EM eresg@ornl.gov
NR 83
TC 0
Z9 0
U1 1
U2 5
PU WOODHEAD PUBL LTD
PI CAMBRIDGE
PA ABINGTON HALL ABINGTON, CAMBRIDGE CB1 6AH, CAMBS, ENGLAND
BN 978-1-84569-934-5
J9 WOODHEAD PUBL MATER
PY 2011
BP 239
EP 273
D2 10.1533/9780857094957
PG 35
WC Materials Science, Characterization & Testing; Materials Science,
Coatings & Films
SC Materials Science
GA BAX34
UT WOS:000305971000009
ER
PT J
AU Wan, CS
Sadowski, JT
Kordesch, ME
AF Wan, Cangshang
Sadowski, Jerzy T.
Kordesch, Martin E.
BE Klumper, A
TI Scandate Coating for Tungsten Field Emission Electron Sources
SO 2011 24TH INTERNATIONAL VACUUM NANOELECTRONICS CONFERENCE (IVNC)
LA English
DT Proceedings Paper
CT 24th International Vacuum Nanoelectronics Conference (IVNC)
CY JUL 18-22, 2011
CL Wuppertal, GERMANY
SP Bergische Univ Wuppertal, IEEE - Electron Device Soc (EDS), Gesellschaft Freunde Bergischen Univ (GFBU), Comp Simulat Technol AG (CST), Bruker Adv Supercon GmbH (BRUKER), Keyence Deutschland GmbH (KEYENCE)
DE field emission; scandate; tungsen; diamond field emitter array; electron
emission microcopy
AB Scandium oxide coated field emitter arrays have been investigated for enhanced field emission. The enhancement is proposed to originate in a reduction of the interfacial energy barrier between the tungsten and the scandium oxide, in analogy with thermionic cathodes.
C1 [Wan, Cangshang; Sadowski, Jerzy T.; Kordesch, Martin E.] Ohio Univ, Athens, OH 45701 USA.
[Wan, Cangshang; Sadowski, Jerzy T.; Kordesch, Martin E.] Brookhaven Natl Lab, CFN, Upton, NY 11973 USA.
RP Wan, CS (reprint author), Ohio Univ, Athens, OH 45701 USA.
EM kordesch@ohio.edu
FU Nanohmics, Inc., through the Air Force Office of Scientific Research
[FA9550-09-C-0085]; U.S. Department of Energy; Office of Basic Energy
Sciences [DE-AC02-98CH10886]
FX This work was supported by Nanohmics, Inc., through the Air Force Office
of Scientific Research, contract No. FA9550-09-C-0085. Research carried
out in part at the Center for Functional Nanomaterials, Brookhaven N
ational Laboratory, which is supported by the U.S. Department of Energy,
Office of Basic Energy Sciences, under Contract No. DE-AC02-98CH10886
NR 3
TC 0
Z9 0
U1 0
U2 2
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-3-00-035081-8
PY 2011
BP 33
EP +
PG 2
WC Engineering, Electrical & Electronic; Nanoscience & Nanotechnology
SC Engineering; Science & Technology - Other Topics
GA BCC50
UT WOS:000309723000017
ER
PT J
AU Resnick, PJ
Langlois, E
AF Resnick, P. J.
Langlois, E.
BE Klumper, A
TI An Integrated MEMS Vacuum Diode
SO 2011 24TH INTERNATIONAL VACUUM NANOELECTRONICS CONFERENCE (IVNC)
LA English
DT Proceedings Paper
CT 24th International Vacuum Nanoelectronics Conference (IVNC)
CY JUL 18-22, 2011
CL Wuppertal, GERMANY
SP Bergische Univ Wuppertal, IEEE - Electron Device Soc (EDS), Gesellschaft Freunde Bergischen Univ (GFBU), Comp Simulat Technol AG (CST), Bruker Adv Supercon GmbH (BRUKER), Keyence Deutschland GmbH (KEYENCE)
DE MEMS; vacuum diode; cold cathode
AB MEMS processing technologies have been used to create a wide variety of devices, including photonic crystals and microfluidic structures. These methodologies were adapted to fabricate an in situ vacuum sealed cold-cathode diode. Cathodes were formed from arrays of tungsten-clad silicon tips. Tungsten anodes, separated by a sacrificial film, were fabricated above each tip, within a vacuum microcavity. Initial test data are consistent with Fowler-Nordheim behavior, with an on/off current ratio of nearly 7 decades in forward bias.
C1 [Resnick, P. J.; Langlois, E.] Sandia Natl Labs, Albuquerque, NM 87123 USA.
RP Resnick, PJ (reprint author), Sandia Natl Labs, Albuquerque, NM 87123 USA.
EM resnicpj@sandia.gov
NR 4
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-3-00-035081-8
PY 2011
BP 161
EP 162
PG 2
WC Engineering, Electrical & Electronic; Nanoscience & Nanotechnology
SC Engineering; Science & Technology - Other Topics
GA BCC50
UT WOS:000309723000081
ER
PT S
AU Singh, JK
Docherty, H
Cummings, PT
AF Singh, Jayant K.
Docherty, Hugh
Cummings, Peter T.
BE Bichoutskaia, E
TI Phase Transition under Confinement
SO COMPUTATIONAL NANOSCIENCE
SE RSC Theoretical and Computational Chemistry Series
LA English
DT Article; Book Chapter
ID MOLECULARLY THIN-FILMS; MATRIX MONTE-CARLO; PORE-SIZE DISTRIBUTIONS;
SOLID-LIKE BEHAVIOR; MICA SURFACES; CAPILLARY CONDENSATION;
COMPUTER-SIMULATION; CRITICAL-POINT; LOW-FRICTION; FLUIDS
C1 [Singh, Jayant K.] Indian Inst Technol, Dept Chem Engn, Kanpur 208016, Uttar Pradesh, India.
[Docherty, Hugh; Cummings, Peter T.] Vanderbilt Univ, Dept Chem & Biomol Engn, Nashville, TN 37235 USA.
[Cummings, Peter T.] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA.
RP Singh, JK (reprint author), Indian Inst Technol, Dept Chem Engn, Kanpur 208016, Uttar Pradesh, India.
RI Singh, Jayant/A-1820-2011; Besley, Elena/I-5672-2013
OI Besley, Elena/0000-0002-9910-7603
NR 58
TC 0
Z9 0
U1 1
U2 2
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, CAMBRIDGE CB4 4WF, CAMBS, ENGLAND
SN 2041-3181
BN 978-1-84973-268-0
J9 RSC THEOR COMPUT CHE
PY 2011
IS 4
BP 82
EP 108
D2 10.1039/9781849732680
PG 27
WC Chemistry, Physical; Nanoscience & Nanotechnology; Mathematics, Applied
SC Chemistry; Science & Technology - Other Topics; Mathematics
GA BXL06
UT WOS:000296272000005
ER
PT S
AU Harris, N
Ausman, LK
McMahon, JM
Masiello, DJ
Schatz, GC
AF Harris, Nadine
Ausman, Logan K.
McMahon, Jeffrey M.
Masiello, David J.
Schatz, George C.
BE Bichoutskaia, E
TI Computational Electrodynamics Methods
SO COMPUTATIONAL NANOSCIENCE
SE RSC Theoretical and Computational Chemistry Series
LA English
DT Article; Book Chapter
ID DISCRETE-DIPOLE APPROXIMATION; PLASMON RESONANCE SPECTROSCOPY;
SYNTHESIZED GOLD NANOTRIANGLES; ENHANCED RAMAN-SCATTERING;
OPTICAL-PROPERTIES; SILVER ELECTRODE; TRIANGULAR NANOPRISMS;
LONGITUDINAL PLASMONS; MOLECULAR RESONANCES; ALZHEIMERS-DISEASE
C1 [Harris, Nadine; Ausman, Logan K.; McMahon, Jeffrey M.; Schatz, George C.] Northwestern Univ, Dept Chem, Int Inst Nanotechnol, Evanston, IL 60208 USA.
[McMahon, Jeffrey M.] Argonne Natl Lab, Ctr Nanoscale Mat, Argonne, IL 60439 USA.
[Masiello, David J.] Univ Washington, Dept Chem, Seattle, WA 98195 USA.
RP Harris, N (reprint author), Northwestern Univ, Dept Chem, Int Inst Nanotechnol, 2145 Sheridan Rd, Evanston, IL 60208 USA.
RI Besley, Elena/I-5672-2013
OI Besley, Elena/0000-0002-9910-7603
NR 66
TC 1
Z9 1
U1 0
U2 3
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, CAMBRIDGE CB4 4WF, CAMBS, ENGLAND
SN 2041-3181
BN 978-1-84973-268-0
J9 RSC THEOR COMPUT CHE
PY 2011
IS 4
BP 147
EP 178
D2 10.1039/9781849732680
PG 32
WC Chemistry, Physical; Nanoscience & Nanotechnology; Mathematics, Applied
SC Chemistry; Science & Technology - Other Topics; Mathematics
GA BXL06
UT WOS:000296272000007
ER
PT B
AU Cunningham, AJ
McKee, CF
Klein, RI
Krumholz, MR
Teyssier, R
AF Cunningham, Andrew J.
McKee, Christopher F.
Klein, Richard I.
Krumholz, Mark R.
Teyssier, Romain
BE Pogorelov, NV
Font, JA
Audit, E
Zank, GP
TI Radiatively Efficient Magnetized Bondi Accretion
SO NUMERICAL MODELING OF SPACE PLASMA FLOWS: ASTRONUM-2011
SE Astronomical Society of the Pacific Conference Series
LA English
DT Proceedings Paper
CT 6th Annual International Conference on Numerical Modeling of Space
Plasma Flows
CY JUN 13-17, 2011
CL Valencia, SPAIN
SP Univ Alabama, Ctr Space Plasma & Aeronom Res, French Commissariat Atom Energy, Inst Investigat Fundamental Laws Universe
ID 3-DIMENSIONAL MAGNETOHYDRODYNAMIC SIMULATIONS; STAR-FORMATION; HOYLE
ACCRETION; SPHERICAL ACCRETION; DISK ACCRETION; SINK PARTICLES;
COLLAPSE; TURBULENCE; SPECTRUM; FLOWS
AB We have carried out a numerical study of the effect of large scale magnetic fields on the rate of accretion from a uniform, isothermal gas onto a resistive, stationary point mass. Only mass, not magnetic flux, accretes onto the point mass. The simulations for this study avoid complications arising from boundary conditions by keeping the boundaries far from the accreting object. Our simulations leverage adaptive refinement methodology to attain high spatial fidelity close to the accreting object. Our results are particularly relevant to the problem of star formation from a magnetized molecular cloud in which thermal energy is radiated away on time scales much shorter than the dynamical time scale. Contrary to the adiabatic case, our simulations show convergence toward a finite accretion rate in the limit in which the radius of the accreting object vanishes, regardless of magnetic field strength. For very weak magnetic fields, the accretion rate first approaches the Bondi value and then drops by a factor similar to 2 as magnetic flux builds up near the point mass. For strong magnetic fields, the steady-state accretion rate is reduced by a factor similar to 0.2 beta(1/2) compared to the Bondi value, where beta is the ratio of the gas pressure to the magnetic pressure. We give a simple expression for the accretion rate as a function of the magnetic field strength.
C1 [Cunningham, Andrew J.; Klein, Richard I.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[McKee, Christopher F.; Klein, Richard I.] Univ Calif Berkeley, Dept Astron, Berkeley, CA 94720 USA.
[McKee, Christopher F.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
[Krumholz, Mark R.] Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 94560 USA.
[Teyssier, Romain] CEA Saclay, Serv Astrophys, F-91191 Gif Sur Yvette, France.
RP Cunningham, AJ (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
EM ajc4@pas.rochester.edu; klein@astro.berkeley.edu
NR 29
TC 0
Z9 0
U1 0
U2 1
PU ASTRONOMICAL SOC PACIFIC
PI SAN FRANCISCO
PA 390 ASHTON AVE, SAN FRANCISCO, CA 94112 USA
BN 978-1-58381-800-8
J9 ASTR SOC P
PY 2011
VL 459
BP 61
EP +
PG 2
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA BCC77
UT WOS:000309737100010
ER
PT B
AU Klein, RI
AF Klein, Richard I.
BE Pogorelov, NV
Font, JA
Audit, E
Zank, GP
TI Radiation Hydrodynamics AMR Simulations of High Mass Star Formation: The
Effects of Feedback in Cores to Clusters
SO NUMERICAL MODELING OF SPACE PLASMA FLOWS: ASTRONUM-2011
SE Astronomical Society of the Pacific Conference Series
LA English
DT Proceedings Paper
CT 6th Annual International Conference on Numerical Modeling of Space
Plasma Flows
CY JUN 13-17, 2011
CL Valencia, SPAIN
SP Univ Alabama, Ctr Space Plasma & Aeronom Res, French Commissariat Atom Energy, Inst Investigat Fundamental Laws Universe
ID PROTOSTELLAR CORES; FRAGMENTATION; COLLAPSE; OUTFLOWS; CLOUDS; LIMIT
AB The formation of massive stars remains one of the most significant unsolved problems in astrophysics, with implications for the formation of the elements and the structure and evolution of galaxies. It is these stars, with masses greater than 810 solar masses, that eventually explode as supernovae and produce most of the heavy elements in the universe, dominate the energy injection into the interstellar medium of galaxies and by injecting both heavy elements and energy into the surrounding medium, shape the evolution of galaxies. High mass star formation poses a major theoretical challenge: How is it possible to sustain a sufficiently high mass accretion rate into a protostellar core despite the radiation pressure on the accreting envelope? I will first summarize our work on the first 3D simulations of massive star formation that resolve this longstanding problem using our high resolution 3D magneto-radiation-hydrodynamic adaptive mesh refinement code ORION, identifying 2 new mechanisms that efficiently solve the problem of the Eddington barrier to high mass star formation. By including the feedback effects of radiation pressure, protostellar radiation heating and protostellar outflows, I will discuss our work on stellar multiplicity. I will then present the first simulations of the effects of radiation feedback from high mass protostars on the universality of the Interstellar Mass Function (IMF) across a wide range of environments. Finally, I will present the first simulations of the formation of high mass clusters with radiation feedback.
C1 Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
RP Klein, RI (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
NR 31
TC 0
Z9 0
U1 0
U2 1
PU ASTRONOMICAL SOC PACIFIC
PI SAN FRANCISCO
PA 390 ASHTON AVE, SAN FRANCISCO, CA 94112 USA
BN 978-1-58381-800-8
J9 ASTR SOC P
PY 2011
VL 459
BP 91
EP 98
PG 8
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA BCC77
UT WOS:000309737100015
ER
PT B
AU Li, ST
AF Li, Shengtai
BE Pogorelov, NV
Font, JA
Audit, E
Zank, GP
TI Code Comparison for MHD Fast-Mode Wave Propagation
SO NUMERICAL MODELING OF SPACE PLASMA FLOWS: ASTRONUM-2011
SE Astronomical Society of the Pacific Conference Series
LA English
DT Proceedings Paper
CT 6th Annual International Conference on Numerical Modeling of Space
Plasma Flows
CY JUN 13-17, 2011
CL Valencia, SPAIN
SP Univ Alabama, Ctr Space Plasma & Aeronom Res, French Commissariat Atom Energy, Inst Investigat Fundamental Laws Universe
ID CONSTRAINED TRANSPORT; MAGNETOHYDRODYNAMICS; SCHEME; FLOWS
AB We propose a simple MHD fast wave propagation problem for verification and comparison of different numerical methods and MHD codes. The initially smooth MUD fast waves get steepening with time and eventually form shocks. Because the MHD shock moves slow compared with the fast magneto-sonic speed, many numerical methods and codes produce artificial numerical oscillations near the shock even if these numerical methods have the non-oscillatory property. The amplitude of the oscillations depend on Riemann solver, spatial limiter, and the accuracy order of reconstruction. The Riemann-solver-free central scheme on overlapping grid developed by the author (2008) performs extremely well for this type of problems.
C1 Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Li, ST (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA.
EM sli@lanl.gov
NR 12
TC 0
Z9 0
U1 0
U2 0
PU ASTRONOMICAL SOC PACIFIC
PI SAN FRANCISCO
PA 390 ASHTON AVE, SAN FRANCISCO, CA 94112 USA
BN 978-1-58381-800-8
J9 ASTR SOC P
PY 2011
VL 459
BP 353
EP 358
PG 6
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA BCC77
UT WOS:000309737100055
ER
PT B
AU Yee, HC
Kotov, DV
Sjogreen, B
AF Yee, H. C.
Kotov, D. V.
Sjoegreen, B.
BE Pogorelov, NV
Font, JA
Audit, E
Zank, GP
TI Numerical Dissipation and Wrong Propagation Speed of Discontinuities For
Stiff Source Terms
SO NUMERICAL MODELING OF SPACE PLASMA FLOWS: ASTRONUM-2011
SE Astronomical Society of the Pacific Conference Series
LA English
DT Proceedings Paper
CT 6th Annual International Conference on Numerical Modeling of Space
Plasma Flows
CY JUN 13-17, 2011
CL Valencia, SPAIN
SP Univ Alabama, Ctr Space Plasma & Aeronom Res, French Commissariat Atom Energy, Inst Investigat Fundamental Laws Universe
AB In compressible turbulent combustion/nonequilibrium flows, the constructions of numerical schemes for (a) stable and accurate simulation of turbulence with strong shocks, and (b) obtaining correct propagation speed of discontinuities for stiff reacting terms on "coarse grids" share one important ingredient - minimization of numerical dissipation while maintaining numerical stability. This dual requirement to achieve both numerical stability and accuracy with zero or minimal use of numerical dissipation is most often conflicting for existing schemes that were designed for non-reacting flows. The goal of this paper is to relate numerical dissipations that are inherited in a selected set of high order shock-capturing schemes with the onset of wrong propagation speed of discontinuities for two representative stiff detonation wave problems.
C1 [Yee, H. C.] NASA, Ames Res Ctr, Moffett Field, CA 94035 USA.
[Kotov, D. V.] Stanford Univ, Ctr Turbulence Res, Stanford, CA 94305 USA.
[Sjoegreen, B.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
RP Yee, HC (reprint author), NASA, Ames Res Ctr, Moffett Field, CA 94035 USA.
FU DOE/SciDAC SAP [DE-AI02-06ER25796]; Center for Turbulence Research,
Stanford University; NASA Fundamental Aeronautics (Hypersonic); U.S.
Department of Energy; Lawrence Livermore National Laboratory
[DE-AC52-07NA27344]
FX The support of the DOE/SciDAC SAP grant DE-AI02-06ER25796 is
acknowledged. The work was performed by the second author as a postdoc
fellow at the Center for Turbulence Research, Stanford University. The
financial support from the NASA Fundamental Aeronautics (Hypersonic)
program for the first author is gratefully acknowledged. The work by the
third author was performed under the auspices of the U.S. Department of
Energy by Lawrence Livermore National Laboratory under Contract
DE-AC52-07NA27344.
NR 23
TC 0
Z9 0
U1 0
U2 0
PU ASTRONOMICAL SOC PACIFIC
PI SAN FRANCISCO
PA 390 ASHTON AVE, SAN FRANCISCO, CA 94112 USA
BN 978-1-58381-800-8
J9 ASTR SOC P
PY 2011
VL 459
BP 359
EP +
PG 3
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA BCC77
UT WOS:000309737100056
ER
PT S
AU Shet, S
AF Shet, Sudhakar
BE Minteer, S
TI (Ga,N) and (Cu,Ga) Co-doped ZnO films for Improving Photoelectrochemical
Response for Solar Driven Hydrogen Production
SO PHYSICAL AND ANALYTICAL ELECTROCHEMISTRY (GENERAL) - 218TH ECS MEETING
SE ECS Transactions
LA English
DT Proceedings Paper
CT Symposium on Physical and Analytical Electrochemistry General Session
held during the 218th Meeting of the Electrochemical-Society (ECS)
CY OCT 10-15, 2010
CL Las Vegas, NV
SP Electrochem Soc (ECS), Phys & Analyt Electrochem (PAED)
ID SUBSTRATE-TEMPERATURE; ALIGNED NANORODS; ZNO(AL,N) FILMS; THIN-FILMS;
WATER; PHOTOCATALYSIS; ELECTRODES; POWER; TIO2
AB In this study, Bandgap-reduced p-type ZnO thin films were synthesized through Cu and Ga co-doping. The ZnO:(Cu, Ga) films were synthesized by RF magnetron sputtering in O-2 gas ambient at room temperature and then annealed at 500 degrees C in air for 2 hours. We found that the carrier concentration tuning does not significantly change the bandgap and crystallinity of the ZnO:Cu films. However, it can optimize the carrier concentration and thus dramatically enhance PEC response for the bandgap-reduced p-type ZnO thin films. The co-doped ZnO:(Ga,N) films were deposited by co-sputtering at room temperature, followed by post-annealing at 500 degrees C. We found that the ZnO:(Ga,N) films exhibited greatly enhanced crystallinity compared to ZnO:N films doped with pure N. Furthermore, the ZnO:(Ga,N) films showed much higher N-incorporation than ZnO:N films. As a result, the ZnO:(Ga,N) films showed significantly higher photocurrents than ZnO:N films.
C1 Natl Renewable Energy Lab, Golden, CO 80401 USA.
RP Shet, S (reprint author), Natl Renewable Energy Lab, Golden, CO 80401 USA.
RI Dom, Rekha/B-7113-2012
NR 32
TC 1
Z9 1
U1 0
U2 10
PU ELECTROCHEMICAL SOC INC
PI PENNINGTON
PA 65 S MAIN ST, PENNINGTON, NJ 08534-2839 USA
SN 1938-5862
BN 978-1-60768-232-5; 978-1-56677-882-4
J9 ECS TRANSACTIONS
PY 2011
VL 33
IS 26
BP 95
EP 104
DI 10.1149/1.3557880
PG 10
WC Chemistry, Physical; Electrochemistry
SC Chemistry; Electrochemistry
GA BCA50
UT WOS:000309452100012
ER
PT S
AU Carnes, B
Chen, KS
Spernjak, D
Luo, G
AF Carnes, B.
Chen, K. S.
Spernjak, D.
Luo, G.
BE Gasteiger, HA
Weber, A
Narayanan, SR
Jones, D
Strasser, P
SwiderLyons, K
Buchi, FN
Shirvanian, P
Nakagawa, H
Uchida, H
Mukerjee, S
Schmidt, TJ
Ramani, V
Fuller, T
Edmundson, M
Lamy, C
Mantz, R
TI Validation of PEMFC Computer Models Using Segmented Current and
Temperature Data
SO POLYMER ELECTROLYTE FUEL CELLS 11
SE ECS Transactions
LA English
DT Proceedings Paper
CT 11th Polymer Electrolyte Fuel Cell Symposium (PEFC) Under the Auspices
of the 220th Meeting of the ECS
CY OCT, 2011
CL Boston, MA
SP ECS, Energy Technol (ETD), Phys & Analyt Electrochem (PAED), Battery (BATT), Ind Electrochem & Electrochem Engn (IEEE), Corros (CORR)
ID ELECTROLYTE FUEL-CELLS
AB We present recent work on quantifying the impact of local temperature data in polymer electrolyte membrane fuel cells (PEMFC) model predictions. In particular, we compare differences in prediction of cell voltage and local current distribution when using either i) uniform cathode collector temperature and ii) spatially variable cathode collector temperature obtained from experimental data. We find that changes in temperature of + 5/-2 C can result in +/-3 percent change in local current distribution. We conclude that local temperature data should be incorporated into PEMFC models in validation procedures when available.
C1 [Carnes, B.; Chen, K. S.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Carnes, B (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
NR 10
TC 0
Z9 0
U1 0
U2 0
PU ELECTROCHEMICAL SOC INC
PI PENNINGTON
PA 65 S MAIN ST, PENNINGTON, NJ 08534-2839 USA
SN 1938-5862
BN 978-1-60768-255-4
J9 ECS TRANSACTIONS
PY 2011
VL 41
IS 1
BP 287
EP 292
DI 10.1149/1.3635562
PG 6
WC Electrochemistry; Energy & Fuels; Polymer Science
SC Electrochemistry; Energy & Fuels; Polymer Science
GA BCB37
UT WOS:000309598800024
ER
PT S
AU Ahluwalia, RK
Wang, X
AF Ahluwalia, R. K.
Wang, X.
BE Gasteiger, HA
Weber, A
Narayanan, SR
Jones, D
Strasser, P
SwiderLyons, K
Buchi, FN
Shirvanian, P
Nakagawa, H
Uchida, H
Mukerjee, S
Schmidt, TJ
Ramani, V
Fuller, T
Edmundson, M
Lamy, C
Mantz, R
TI Dynamic Performance of Automotive Fuel Cell Systems with Low Platinum
Loadings
SO POLYMER ELECTROLYTE FUEL CELLS 11
SE ECS Transactions
LA English
DT Proceedings Paper
CT 11th Polymer Electrolyte Fuel Cell Symposium (PEFC) Under the Auspices
of the 220th Meeting of the ECS
CY OCT, 2011
CL Boston, MA
SP ECS, Energy Technol (ETD), Phys & Analyt Electrochem (PAED), Battery (BATT), Ind Electrochem & Electrochem Engn (IEEE), Corros (CORR)
AB A hierarchical algorithm is formulated to control and analyze the dynamic performance of an automotive polymer electrolyte fuel cell system with low platinum loading. Drive cycle simulations on combined urban (UDDS) and highway (HWFET) schedules indicate that the system performance and stack polarization curves deviate significantly from the steady-state results especially while the stack is initially cold. The dynamic response of the air management subsystem during deceleration can be improved by operating the motor as a motor-generator but the cathode stoichiometry remains high at low loads. A differential pressure sensor and control valves are used to regulate the flow of hydrogen on dynamic loads and to control the buildup of inert impurities in the anode gas channels. With a membrane humidifier, the relative humidity of the cathode air at the stack inlet depends on the power demand and the stack temperature. Anode gas recycle and in-cell water transport across the membrane are sufficient to humidify the feed hydrogen. The heat rejection system can maintain the stack at 75 degrees C on the UDDS and HWFET cycles, but the stack temperature must be allowed to rise under some high power demand driving conditions.
C1 [Ahluwalia, R. K.; Wang, X.] Argonne Natl Lab, Argonne, IL 60439 USA.
RP Ahluwalia, RK (reprint author), Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA.
NR 16
TC 0
Z9 0
U1 0
U2 2
PU ELECTROCHEMICAL SOC INC
PI PENNINGTON
PA 65 S MAIN ST, PENNINGTON, NJ 08534-2839 USA
SN 1938-5862
BN 978-1-60768-255-4
J9 ECS TRANSACTIONS
PY 2011
VL 41
IS 1
BP 293
EP 305
DI 10.1149/1.3635563
PG 13
WC Electrochemistry; Energy & Fuels; Polymer Science
SC Electrochemistry; Energy & Fuels; Polymer Science
GA BCB37
UT WOS:000309598800025
ER
PT S
AU Fairweather, J
Spernjak, D
Mukundan, R
Spendelow, J
Artyushkova, K
Atanassov, P
Hussey, D
Jacobson, D
Borup, RL
AF Fairweather, Joseph
Spernjak, Dusan
Mukundan, Rangachary
Spendelow, Jacob
Artyushkova, Kateryna
Atanassov, Plamen
Hussey, Daniel
Jacobson, David
Borup, Rodney L.
BE Gasteiger, HA
Weber, A
Narayanan, SR
Jones, D
Strasser, P
SwiderLyons, K
Buchi, FN
Shirvanian, P
Nakagawa, H
Uchida, H
Mukerjee, S
Schmidt, TJ
Ramani, V
Fuller, T
Edmundson, M
Lamy, C
Mantz, R
TI Interaction of Heat Generation, MPL, and Water Retention in Corroded
PEMFCs
SO POLYMER ELECTROLYTE FUEL CELLS 11
SE ECS Transactions
LA English
DT Proceedings Paper
CT 11th Polymer Electrolyte Fuel Cell Symposium (PEFC) Under the Auspices
of the 220th Meeting of the ECS
CY OCT, 2011
CL Boston, MA
SP ECS, Energy Technol (ETD), Phys & Analyt Electrochem (PAED), Battery (BATT), Ind Electrochem & Electrochem Engn (IEEE), Corros (CORR)
AB Carbon corrosion in PEM fuel cells was induced by a potential-hold accelerated stress test in 2.5 cm(2) active area cells. Polarization curves and electrochemical impedance spectra quantified performance degradation from a combination of kinetic and mass transport losses. High-resolution neutron imaging of the operating cells showed a dramatic decrease in water retention at the same current density in the corroded cells, attributed to increasing internal heat generation. Omission of a cathode-side microporous layer resulted in significant differences in both water profiles and performance degradation. Post-mortem characterization of cell components was carried out by x-ray photoelectron spectroscopy to quantify changes in surface functionality.
C1 [Fairweather, Joseph; Spernjak, Dusan; Mukundan, Rangachary; Spendelow, Jacob; Borup, Rodney L.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Fairweather, J (reprint author), Los Alamos Natl Lab, POB 1663,MS D429, Los Alamos, NM 87545 USA.
RI Artyushkova, Kateryna/B-4709-2008;
OI Artyushkova, Kateryna/0000-0002-2611-0422; Mukundan,
Rangachary/0000-0002-5679-3930
NR 7
TC 5
Z9 5
U1 0
U2 1
PU ELECTROCHEMICAL SOC INC
PI PENNINGTON
PA 65 S MAIN ST, PENNINGTON, NJ 08534-2839 USA
SN 1938-5862
BN 978-1-60768-255-4
J9 ECS TRANSACTIONS
PY 2011
VL 41
IS 1
BP 337
EP 348
DI 10.1149/1.3635567
PG 12
WC Electrochemistry; Energy & Fuels; Polymer Science
SC Electrochemistry; Energy & Fuels; Polymer Science
GA BCB37
UT WOS:000309598800029
ER
PT S
AU Das, PK
Grippin, A
Weber, AZ
AF Das, Prodip K.
Grippin, Adam
Weber, Adam Z.
BE Gasteiger, HA
Weber, A
Narayanan, SR
Jones, D
Strasser, P
SwiderLyons, K
Buchi, FN
Shirvanian, P
Nakagawa, H
Uchida, H
Mukerjee, S
Schmidt, TJ
Ramani, V
Fuller, T
Edmundson, M
Lamy, C
Mantz, R
TI Detachment of Liquid-Water Droplets from Gas-Diffusion Layers
SO POLYMER ELECTROLYTE FUEL CELLS 11
SE ECS Transactions
LA English
DT Proceedings Paper
CT 11th Polymer Electrolyte Fuel Cell Symposium (PEFC) Under the Auspices
of the 220th Meeting of the ECS
CY OCT, 2011
CL Boston, MA
SP ECS, Energy Technol (ETD), Phys & Analyt Electrochem (PAED), Battery (BATT), Ind Electrochem & Electrochem Engn (IEEE), Corros (CORR)
ID ELECTROLYTE FUEL-CELLS; NON-HORIZONTAL SURFACES; POLYMER-ELECTROLYTE;
CONTACT ANGLES; HYDROPHOBIC SURFACES; FLOW CHANNEL; DROPS; WETTABILITY;
TRANSPORT; ABILITY
AB A critical issue for optimal water management in proton-exchange-membrane fuel cells at lower temperatures is the removal of liquid water from the cell. This pathway is intimately linked with the phenomena of liquid-water droplet removal from surface of the gas-diffusion layer and into the flow channel. Thus, a good understanding of liquid-water transport and droplet growth and detachment from the gas-diffusion layer is critical. In this study, liquid-water droplet growth and detachment on the gas-diffusion layer surfaces are investigated experimentally to improve the understating of water transport through and removal from gas-diffusion layers. An experiment using a sliding-angle measurement is designed and used to quantify and directly measure the adhesion force for liquid-water droplets, and to understand the droplets' growth and detachment from the gas-diffusion layers.
C1 [Das, Prodip K.; Grippin, Adam; Weber, Adam Z.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
RP Das, PK (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, 1 Cyclotron Rd, Berkeley, CA 94720 USA.
OI Weber, Adam/0000-0002-7749-1624; Das, Prodip/0000-0001-9096-3721
NR 24
TC 0
Z9 0
U1 1
U2 3
PU ELECTROCHEMICAL SOC INC
PI PENNINGTON
PA 65 S MAIN ST, PENNINGTON, NJ 08534-2839 USA
SN 1938-5862
BN 978-1-60768-255-4
J9 ECS TRANSACTIONS
PY 2011
VL 41
IS 1
BP 459
EP 468
DI 10.1149/1.3635580
PG 10
WC Electrochemistry; Energy & Fuels; Polymer Science
SC Electrochemistry; Energy & Fuels; Polymer Science
GA BCB37
UT WOS:000309598800042
ER
PT S
AU Cho, KT
Turhan, A
Mench, MM
AF Cho, Kyu Taek
Turhan, Ahmet
Mench, Matthew M.
BE Gasteiger, HA
Weber, A
Narayanan, SR
Jones, D
Strasser, P
SwiderLyons, K
Buchi, FN
Shirvanian, P
Nakagawa, H
Uchida, H
Mukerjee, S
Schmidt, TJ
Ramani, V
Fuller, T
Edmundson, M
Lamy, C
Mantz, R
TI Investigation of the impact of the micro-porous layer on the water
distribution in the polymer electrolyte fuel cells through
hydrogen-deuterium contrast neutron radiography
SO POLYMER ELECTROLYTE FUEL CELLS 11
SE ECS Transactions
LA English
DT Proceedings Paper
CT 11th Polymer Electrolyte Fuel Cell Symposium (PEFC) Under the Auspices
of the 220th Meeting of the ECS
CY OCT, 2011
CL Boston, MA
SP ECS, Energy Technol (ETD), Phys & Analyt Electrochem (PAED), Battery (BATT), Ind Electrochem & Electrochem Engn (IEEE), Corros (CORR)
AB In this study, the role of the micro-porous layer (MPL) on water management in the polymer electrolyte fuel cell was investigated with high resolution hydrogen-deuterium contrast radiography. The role of the MPL to push water toward the anode via capillary action was confirmed. The dynamic water behavior in diffusion media was also analyzed in detail, and a significant fraction of isolated droplets was identified.
C1 [Cho, Kyu Taek] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Environm Energy Technol Div, Berkeley, CA 94720 USA.
RP Cho, KT (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Environm Energy Technol Div, Berkeley, CA 94720 USA.
EM mmench@utk.edu
NR 8
TC 2
Z9 2
U1 0
U2 2
PU ELECTROCHEMICAL SOC INC
PI PENNINGTON
PA 65 S MAIN ST, PENNINGTON, NJ 08534-2839 USA
SN 1938-5862
BN 978-1-60768-255-4
J9 ECS TRANSACTIONS
PY 2011
VL 41
IS 1
BP 513
EP 520
DI 10.1149/1.3635585
PG 8
WC Electrochemistry; Energy & Fuels; Polymer Science
SC Electrochemistry; Energy & Fuels; Polymer Science
GA BCB37
UT WOS:000309598800047
ER
PT S
AU Mukundan, R
James, G
Davey, J
Langlois, D
Torraco, D
Yoon, W
Weber, AZ
Borup, RL
AF Mukundan, Rangachary
James, Greg
Davey, John
Langlois, David
Torraco, Dennis
Yoon, Wonseok
Weber, Adam Z.
Borup, Rodney L.
BE Gasteiger, HA
Weber, A
Narayanan, SR
Jones, D
Strasser, P
SwiderLyons, K
Buchi, FN
Shirvanian, P
Nakagawa, H
Uchida, H
Mukerjee, S
Schmidt, TJ
Ramani, V
Fuller, T
Edmundson, M
Lamy, C
Mantz, R
TI Accelerated Testing Validation
SO POLYMER ELECTROLYTE FUEL CELLS 11
SE ECS Transactions
LA English
DT Proceedings Paper
CT 11th Polymer Electrolyte Fuel Cell Symposium (PEFC) Under the Auspices
of the 220th Meeting of the ECS
CY OCT, 2011
CL Boston, MA
SP ECS, Energy Technol (ETD), Phys & Analyt Electrochem (PAED), Battery (BATT), Ind Electrochem & Electrochem Engn (IEEE), Corros (CORR)
AB Accelerated Stress Tests (ASTs) were performed on 2 different MEAs (designated P5 and HD6) from Ballard Power Systems. These MEAs were also incorporated into stacks and operated in fuel cell bus modules that were either operated in the field (three P5 buses) in Hamburg, or on an Orange county transit authority drive cycle in the laboratory (HD6 bus module). Qualitative agreement was found in the degradation mechanisms and rates observed in the AST and in the field. The HD6 based MEAs exhibited lower voltage degradation rates (due to catalyst corrosion) and slower membrane degradation rates in the field as reflected by their superior performance in the high potential hold and open-circuit potential AST tests. To quantitatively correlate lab ASTs to field degradation rates, various degradation stressors including temperature, RH, start/stops and voltage cycles, which are not constant in the field, must be accounted for.
C1 [Mukundan, Rangachary; Davey, John; Langlois, David; Torraco, Dennis; Borup, Rodney L.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Mukundan, R (reprint author), Los Alamos Natl Lab, POB 1663,MS D429, Los Alamos, NM 87545 USA.
OI Weber, Adam/0000-0002-7749-1624; Mukundan,
Rangachary/0000-0002-5679-3930
NR 4
TC 11
Z9 11
U1 1
U2 4
PU ELECTROCHEMICAL SOC INC
PI PENNINGTON
PA 65 S MAIN ST, PENNINGTON, NJ 08534-2839 USA
SN 1938-5862
BN 978-1-60768-255-4
J9 ECS TRANSACTIONS
PY 2011
VL 41
IS 1
BP 613
EP 619
DI 10.1149/1.3635594
PG 7
WC Electrochemistry; Energy & Fuels; Polymer Science
SC Electrochemistry; Energy & Fuels; Polymer Science
GA BCB37
UT WOS:000309598800056
ER
PT S
AU Spernjak, D
Fairweather, J
Rockward, T
Mukundan, R
Borup, RL
AF Spernjak, Dusan
Fairweather, Joseph
Rockward, Tommy
Mukundan, Rangachary
Borup, Rodney L.
BE Gasteiger, HA
Weber, A
Narayanan, SR
Jones, D
Strasser, P
SwiderLyons, K
Buchi, FN
Shirvanian, P
Nakagawa, H
Uchida, H
Mukerjee, S
Schmidt, TJ
Ramani, V
Fuller, T
Edmundson, M
Lamy, C
Mantz, R
TI Characterization of Carbon Corrosion in a Segmented PEM Fuel Cell
SO POLYMER ELECTROLYTE FUEL CELLS 11
SE ECS Transactions
LA English
DT Proceedings Paper
CT 11th Polymer Electrolyte Fuel Cell Symposium (PEFC) Under the Auspices
of the 220th Meeting of the ECS
CY OCT, 2011
CL Boston, MA
SP ECS, Energy Technol (ETD), Phys & Analyt Electrochem (PAED), Battery (BATT), Ind Electrochem & Electrochem Engn (IEEE), Corros (CORR)
ID SINGLE-SERPENTINE
AB Corrosion of the catalyst support is an important degradation mechanism in PEM fuel cells because it reduces the overall cell performance by decreasing the active catalyst surface area, catalyst connectivity, and the porosity and hydrophobicity of the catalyst layer. Carbon corrosion rates were investigated in a segmented cell with and without a microporous layer (MPL) on the cathode. The cells were aged in-situ using a protocol for accelerated stress testing (AST) for carbon-support corrosion consisting of consecutive holds at 1.3 V. Carbon corrosion was quantified by measuring CO2 evolution during the potential holds. Although more carbon was corroded in the cell with the MPL on the cathode, corrosion in the catalyst layer was lower than in the cell without the MPL because a portion of the evolved CO2 originated from the MPL rather than from the catalyst layer. This was corroborated by the higher remaining ECSA and lower kinetic losses after prolonged corrosion for the MPL case. Both GDL cases exhibited substantial performance degradation and ECSA loss. Cell with the MPL was more resistant to prolonged carbon corrosion.
C1 [Spernjak, Dusan; Fairweather, Joseph; Rockward, Tommy; Mukundan, Rangachary; Borup, Rodney L.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Spernjak, D (reprint author), Los Alamos Natl Lab, MS D429,MPA-11, Los Alamos, NM 87545 USA.
OI Mukundan, Rangachary/0000-0002-5679-3930
NR 12
TC 4
Z9 4
U1 0
U2 5
PU ELECTROCHEMICAL SOC INC
PI PENNINGTON
PA 65 S MAIN ST, PENNINGTON, NJ 08534-2839 USA
SN 1938-5862
BN 978-1-60768-255-4
J9 ECS TRANSACTIONS
PY 2011
VL 41
IS 1
BP 741
EP 750
DI 10.1149/1.3635608
PG 10
WC Electrochemistry; Energy & Fuels; Polymer Science
SC Electrochemistry; Energy & Fuels; Polymer Science
GA BCB37
UT WOS:000309598800070
ER
PT S
AU Arisetty, S
Wang, X
Ahluwalia, RK
Mukundan, R
Borup, R
Davey, J
Langlois, D
Gambini, F
Polevaya, O
Blanchet, S
AF Arisetty, S.
Wang, X.
Ahluwalia, R. K.
Mukundan, R.
Borup, R.
Davey, J.
Langlois, D.
Gambini, F.
Polevaya, O.
Blanchet, S.
BE Gasteiger, HA
Weber, A
Narayanan, SR
Jones, D
Strasser, P
SwiderLyons, K
Buchi, FN
Shirvanian, P
Nakagawa, H
Uchida, H
Mukerjee, S
Schmidt, TJ
Ramani, V
Fuller, T
Edmundson, M
Lamy, C
Mantz, R
TI Effect of Platinum Loading on Catalyst Stability under Cyclic Potentials
SO POLYMER ELECTROLYTE FUEL CELLS 11
SE ECS Transactions
LA English
DT Proceedings Paper
CT 11th Polymer Electrolyte Fuel Cell Symposium (PEFC) Under the Auspices
of the 220th Meeting of the ECS
CY OCT, 2011
CL Boston, MA
SP ECS, Energy Technol (ETD), Phys & Analyt Electrochem (PAED), Battery (BATT), Ind Electrochem & Electrochem Engn (IEEE), Corros (CORR)
ID IMPEDANCE; ELECTRODES; PEMFCS; MODEL
AB The effect of platinum loading on catalyst durability was investigated by subjecting two identical 50-cm(2) active area cells with 0.15 and 0.4 mg(Pt).cm(-2) in cathode to 30,000 triangle sweep cycles between 0.6 V and 1 V at 50 mV.s(-1) scan rate. The gas flow conditions were 80 degrees C, 1 atm, and 100% relative humidity for H-2 (fuel) and N-2 (oxidant). Both cells lost about 55% of the initial electrochemically active surface area and showed similar H-2 crossover rates and decreases in high frequency resistance. Analysis of the back-scan polarization data indicated that the Tafel slope increased by 5-10% over the initial 5,000 cycles, and then more gradually over the subsequent 25,000 cycles. Consistent with the XRD measurements that showed growth in the average size of Pt particles, the estimated exchange current density (mA. cm(Pt)(-2)) increased by similar to 10% over the test period for both cells. Both the activation overpotentials for oxygen reduction and the mass transfer overpotentials increased with cycling. The mass transfer overpotentials were higher in the 0.15-mg(Pt).cm(-2) cell and increased faster with cycling than the overpotentials in the higher Pt-loaded cell.
C1 [Arisetty, S.; Wang, X.; Ahluwalia, R. K.] Argonne Natl Lab, Argonne, IL 60439 USA.
RP Arisetty, S (reprint author), Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA.
OI Mukundan, Rangachary/0000-0002-5679-3930
NR 12
TC 0
Z9 0
U1 0
U2 4
PU ELECTROCHEMICAL SOC INC
PI PENNINGTON
PA 65 S MAIN ST, PENNINGTON, NJ 08534-2839 USA
SN 1938-5862
BN 978-1-60768-255-4
J9 ECS TRANSACTIONS
PY 2011
VL 41
IS 1
BP 797
EP 809
DI 10.1149/1.3635613
PG 13
WC Electrochemistry; Energy & Fuels; Polymer Science
SC Electrochemistry; Energy & Fuels; Polymer Science
GA BCB37
UT WOS:000309598800075
ER
PT S
AU Epping-Martin, K
Kopasz, JP
Benjamin, TG
Garland, NL
Podolski, WF
Peterson, DR
Kleen, G
Papageorgopoulos, D
Ho, DL
AF Epping-Martin, K.
Kopasz, J. P.
Benjamin, T. G.
Garland, N. L.
Podolski, W. F.
Peterson, D. R.
Kleen, G.
Papageorgopoulos, D.
Ho, D. L.
BE Gasteiger, HA
Weber, A
Narayanan, SR
Jones, D
Strasser, P
SwiderLyons, K
Buchi, FN
Shirvanian, P
Nakagawa, H
Uchida, H
Mukerjee, S
Schmidt, TJ
Ramani, V
Fuller, T
Edmundson, M
Lamy, C
Mantz, R
TI US Department of Energy Polymer Electrolyte Membrane Fuel Cell Catalyst
Development Activities
SO POLYMER ELECTROLYTE FUEL CELLS 11
SE ECS Transactions
LA English
DT Proceedings Paper
CT 11th Polymer Electrolyte Fuel Cell Symposium (PEFC) Under the Auspices
of the 220th Meeting of the ECS
CY OCT, 2011
CL Boston, MA
SP ECS, Energy Technol (ETD), Phys & Analyt Electrochem (PAED), Battery (BATT), Ind Electrochem & Electrochem Engn (IEEE), Corros (CORR)
ID OXYGEN REDUCTION REACTION; ELECTROCATALYSTS; STABILITY; SURFACES
AB The U.S. Department of Energy is supporting the research, development, and deployment of all types of fuel cells for transportation, material handling, portable power, back-up power, stationary power, and combined heat and power applications. A major focus of this support is polymer electrolyte membrane fuel cells. Key issues inhibiting their widespread penetration and commercialization of fuel cells are performance, durability, and cost and a key component is electrode technology including supports and catalysts. The approaches to improvement in electrode technology include alloys, core/shell structures, thin continuous catalyst films, non-precious metal catalysts, and alternative supports. Major progress has been realized recently. This paper provides an overview of DOE-funded advances and status.
C1 [Epping-Martin, K.; Garland, N. L.; Peterson, D. R.; Kleen, G.; Papageorgopoulos, D.; Ho, D. L.] US DOE, Washington, DC 20585 USA.
RP Epping-Martin, K (reprint author), US DOE, Washington, DC 20585 USA.
NR 28
TC 2
Z9 2
U1 0
U2 3
PU ELECTROCHEMICAL SOC INC
PI PENNINGTON
PA 65 S MAIN ST, PENNINGTON, NJ 08534-2839 USA
SN 1938-5862
BN 978-1-60768-255-4
J9 ECS TRANSACTIONS
PY 2011
VL 41
IS 1
BP 917
EP 932
DI 10.1149/1.3635626
PG 16
WC Electrochemistry; Energy & Fuels; Polymer Science
SC Electrochemistry; Energy & Fuels; Polymer Science
GA BCB37
UT WOS:000309598800088
ER
PT S
AU Bliznakov, ST
Vukmirovic, MB
Yang, L
Sutter, EA
Adzic, RR
AF Bliznakov, S. T.
Vukmirovic, M. B.
Yang, L.
Sutter, E. A.
Adzic, R. R.
BE Gasteiger, HA
Weber, A
Narayanan, SR
Jones, D
Strasser, P
SwiderLyons, K
Buchi, FN
Shirvanian, P
Nakagawa, H
Uchida, H
Mukerjee, S
Schmidt, TJ
Ramani, V
Fuller, T
Edmundson, M
Lamy, C
Mantz, R
TI Pt Monolayer on Electrodeposited Pd Nanostructures-Advanced Cathode
Catalysts for PEM Fuel Cells
SO POLYMER ELECTROLYTE FUEL CELLS 11
SE ECS Transactions
LA English
DT Proceedings Paper
CT 11th Polymer Electrolyte Fuel Cell Symposium (PEFC) Under the Auspices
of the 220th Meeting of the ECS
CY OCT, 2011
CL Boston, MA
SP ECS, Energy Technol (ETD), Phys & Analyt Electrochem (PAED), Battery (BATT), Ind Electrochem & Electrochem Engn (IEEE), Corros (CORR)
ID OXYGEN-REDUCTION; INITIAL-STAGES; ELECTROCHEMICAL DEPOSITION; PALLADIUM
DEPOSITION; AU(111) ELECTRODE; ELECTROCATALYSTS; SURFACE; PT(111);
GROWTH; ALLOY
AB The Pt monolayer-shell Pd nanowires/nanorods-core (Pt-ML/Pd-NW(Pd-NR)) electrocatalysts, supported on carbon nanoparticles are notable for their very high activity and stable performance towards the oxygen reduction reaction (ORR). In the present work Pd nanostructures are electrochemically deposited on oxidized carbon (C-OX) surface and the impact of the deposition parameters on the deposits morphology is studied. The electrochemical deposition of Pd nanowires is demonstrated for the first time, and a viable mechanism for the growth of Pd nanostructures is proposed. The one-dimensional growth of the Pd nanowires is ascribed to the hydrogen-underpotential-mediated layer-by-layer deposition of Pd. In addition, the surface structure of deposited nanowires is composed predominantly of {111}-oriented facets that facilitate the enhanced ORR activity and stability of the Pt-ML/Pd-NW/C-OX electrocatalysts. The Pt mass and specific activities of these electrocatalysts, as well as their stable performance under potential cycling conditions, are significantly higher than those of the commercial Pt/C electrocatalysts, and highlight their great potential for resolving the remaining obstacles to commercializing PEMFCs.
C1 [Bliznakov, S. T.; Vukmirovic, M. B.; Yang, L.; Adzic, R. R.] Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA.
RP Bliznakov, ST (reprint author), Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA.
NR 39
TC 4
Z9 4
U1 2
U2 23
PU ELECTROCHEMICAL SOC INC
PI PENNINGTON
PA 65 S MAIN ST, PENNINGTON, NJ 08534-2839 USA
SN 1938-5862
BN 978-1-60768-255-4; 978-1-60768-254-7
J9 ECS TRANSACTIONS
PY 2011
VL 41
IS 1
BP 1055
EP 1066
DI 10.1149/1.3635638
PG 12
WC Electrochemistry; Energy & Fuels; Polymer Science
SC Electrochemistry; Energy & Fuels; Polymer Science
GA BCB37
UT WOS:000309598800100
ER
PT S
AU Cullen, DA
More, KL
Reeves, KS
Vernstrom, GD
Atanasoska, LL
Haugen, GM
Atanasoski, RT
AF Cullen, D. A.
More, K. L.
Reeves, K. S.
Vernstrom, G. D.
Atanasoska, L. L.
Haugen, G. M.
Atanasoski, R. T.
BE Gasteiger, HA
Weber, A
Narayanan, SR
Jones, D
Strasser, P
SwiderLyons, K
Buchi, FN
Shirvanian, P
Nakagawa, H
Uchida, H
Mukerjee, S
Schmidt, TJ
Ramani, V
Fuller, T
Edmundson, M
Lamy, C
Mantz, R
TI Characterization of durable nanostructured thin film catalysts tested
under transient conditions using analytical aberration-corrected
electron microscopy
SO POLYMER ELECTROLYTE FUEL CELLS 11
SE ECS Transactions
LA English
DT Proceedings Paper
CT 11th Polymer Electrolyte Fuel Cell Symposium (PEFC) Under the Auspices
of the 220th Meeting of the ECS
CY OCT, 2011
CL Boston, MA
SP ECS, Energy Technol (ETD), Phys & Analyt Electrochem (PAED), Battery (BATT), Ind Electrochem & Electrochem Engn (IEEE), Corros (CORR)
ID ELECTROCATALYSTS
AB The stability of Ru0.1Ir0.9 oxidation evolution reaction (OER) catalysts deposited on Pt-coated nanostructured thin films (NSTFs) has been investigated by aberration-corrected electron microscopy. Accelerated stress tests showed that the OER catalysts significantly improved the durability of the Pt under cell reversal conditions. High-resolution images of the end-of-life NSTFs showed significant Ir loss from the whisker surfaces, while no Pt loss was observed. The retention of the Pt indicated that the OER catalysts had protected the catalyst-coated whisker surfaces from degradation.
C1 [Cullen, D. A.; More, K. L.; Reeves, K. S.] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA.
RP Cullen, DA (reprint author), Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA.
RI Cullen, David/A-2918-2015; More, Karren/A-8097-2016
OI Cullen, David/0000-0002-2593-7866; More, Karren/0000-0001-5223-9097
NR 7
TC 5
Z9 5
U1 0
U2 10
PU ELECTROCHEMICAL SOC INC
PI PENNINGTON
PA 65 S MAIN ST, PENNINGTON, NJ 08534-2839 USA
SN 1938-5862
BN 978-1-60768-255-4
J9 ECS TRANSACTIONS
PY 2011
VL 41
IS 1
BP 1099
EP 1103
DI 10.1149/1.3635642
PG 5
WC Electrochemistry; Energy & Fuels; Polymer Science
SC Electrochemistry; Energy & Fuels; Polymer Science
GA BCB37
UT WOS:000309598800104
ER
PT S
AU Wu, G
Chung, HT
Nelson, M
Artyushkova, K
More, KL
Johnston, CM
Zelenay, P
AF Wu, Gang
Chung, Hoon T.
Nelson, Mark
Artyushkova, Kateryna
More, Karen L.
Johnston, Christina M.
Zelenay, Piotr
BE Gasteiger, HA
Weber, A
Narayanan, SR
Jones, D
Strasser, P
SwiderLyons, K
Buchi, FN
Shirvanian, P
Nakagawa, H
Uchida, H
Mukerjee, S
Schmidt, TJ
Ramani, V
Fuller, T
Edmundson, M
Lamy, C
Mantz, R
TI Graphene-Enriched Co9S8-N-C Non-Precious Metal Catalyst for Oxygen
Reduction in Alkaline Media
SO POLYMER ELECTROLYTE FUEL CELLS 11
SE ECS Transactions
LA English
DT Proceedings Paper
CT 11th Polymer Electrolyte Fuel Cell Symposium (PEFC) Under the Auspices
of the 220th Meeting of the ECS
CY OCT, 2011
CL Boston, MA
SP ECS, Energy Technol (ETD), Phys & Analyt Electrochem (PAED), Battery (BATT), Ind Electrochem & Electrochem Engn (IEEE), Corros (CORR)
ID ONION-LIKE CARBON; FUEL-CELLS; ELECTROCATALYSTS; KINETICS;
ELECTROREDUCTION; NANOPARTICLES; ELECTROLYTE; EVOLUTION; MEMBRANE;
COBALT
AB In this work, a non-precious metal catalyst consisting of Co9S8 nanoparticles surrounded with nitrogen-doped graphene-like carbon (Co9S8-N-C) was developed for oxygen reduction in alkaline media. Improved activity has been measured with the Co9S8-N-C catalyst relative to Pt/C and a non-precious metal catalyst based on Fe instead of Co (Fe-N-C). An extensive physical characterization, including XRD, SEM, TEM, and XPS and electrochemical kinetic analysis was conducted to provide insight into the catalyst morphology and structure.
C1 [Wu, Gang; Chung, Hoon T.; Nelson, Mark; Johnston, Christina M.; Zelenay, Piotr] Los Alamos Natl Lab, Mat Phys & Applicat Div, Los Alamos, NM 87545 USA.
RP Wu, G (reprint author), Los Alamos Natl Lab, Mat Phys & Applicat Div, POB 1663, Los Alamos, NM 87545 USA.
RI Wu, Gang/E-8536-2010; Artyushkova, Kateryna/B-4709-2008; More,
Karren/A-8097-2016;
OI Wu, Gang/0000-0003-4956-5208; Artyushkova, Kateryna/0000-0002-2611-0422;
More, Karren/0000-0001-5223-9097; Chung, Hoon/0000-0002-5367-9294
NR 29
TC 43
Z9 45
U1 3
U2 41
PU ELECTROCHEMICAL SOC INC
PI PENNINGTON
PA 65 S MAIN ST, PENNINGTON, NJ 08534-2839 USA
SN 1938-5862
BN 978-1-60768-255-4
J9 ECS TRANSACTIONS
PY 2011
VL 41
IS 1
BP 1709
EP 1717
DI 10.1149/1.3635702
PG 9
WC Electrochemistry; Energy & Fuels; Polymer Science
SC Electrochemistry; Energy & Fuels; Polymer Science
GA BCB37
UT WOS:000309598800164
ER
PT S
AU Li, Q
Wu, G
Johnston, CM
Zelenay, P
AF Li, Qing
Wu, Gang
Johnston, Christina M.
Zelenay, Piotr
BE Gasteiger, HA
Weber, A
Narayanan, SR
Jones, D
Strasser, P
SwiderLyons, K
Buchi, FN
Shirvanian, P
Nakagawa, H
Uchida, H
Mukerjee, S
Schmidt, TJ
Ramani, V
Fuller, T
Edmundson, M
Lamy, C
Mantz, R
TI Anode Catalysts for the Direct Dimethyl Ether Fuel Cell
SO POLYMER ELECTROLYTE FUEL CELLS 11
SE ECS Transactions
LA English
DT Proceedings Paper
CT 11th Polymer Electrolyte Fuel Cell Symposium (PEFC) Under the Auspices
of the 220th Meeting of the ECS
CY OCT, 2011
CL Boston, MA
SP ECS, Energy Technol (ETD), Phys & Analyt Electrochem (PAED), Battery (BATT), Ind Electrochem & Electrochem Engn (IEEE), Corros (CORR)
ID METHANOL ELECTROOXIDATION; ACID-SOLUTIONS; ELECTRODE; DME; CROSSOVER;
MECHANISM
AB For the last decade, dimethyl ether (DME) has been considered a promising alternative fuel for direct fuel cells because of several advantages over methanol. In this work, PtRu catalysts with a wide range of Pt-to-Ru ratios were screened for the direct DME fuel cell (DDMEFC) performance for the first time. Overall, Pt50Ru50 performs best in the high and middle voltage ranges, whereas Pt80Ru20 performs best at low voltages. A maximum power density of 0.10 W/cm(2) is achieved at a current density of 0.37 A/cm(2). In spite of using gaseous DME feed, the measured performance exceeds the best previously published results. The anode activity and fuel crossover of a DDMEFC were investigated in this work and compared to those of a DMFC. The adsorption and electrooxidation of DME on Pt black catalyst were also studied in half-cell electrochemical measurements.
C1 [Li, Qing; Wu, Gang; Johnston, Christina M.; Zelenay, Piotr] Los Alamos Natl Lab, Mat Phys & Applicat Div, Los Alamos, NM 87545 USA.
RP Li, Q (reprint author), Los Alamos Natl Lab, Mat Phys & Applicat Div, POB 1663, Los Alamos, NM 87545 USA.
RI Wu, Gang/E-8536-2010
OI Wu, Gang/0000-0003-4956-5208
NR 21
TC 2
Z9 2
U1 0
U2 10
PU ELECTROCHEMICAL SOC INC
PI PENNINGTON
PA 65 S MAIN ST, PENNINGTON, NJ 08534-2839 USA
SN 1938-5862
BN 978-1-60768-255-4
J9 ECS TRANSACTIONS
PY 2011
VL 41
IS 1
BP 1969
EP 1977
DI 10.1149/1.3635726
PG 9
WC Electrochemistry; Energy & Fuels; Polymer Science
SC Electrochemistry; Energy & Fuels; Polymer Science
GA BCB37
UT WOS:000309598800188
ER
PT S
AU Zhu, XB
Martin, Z
Clark, K
Brecht, T
Potrekar, RA
Burgess, S
Kerr, JB
AF Zhu, Xiaobing
Martin, Zulima
Clark, Kyle
Brecht, Tobias
Potrekar, Ravindra A.
Burgess, Sean
Kerr, John B.
BE Gasteiger, HA
Weber, A
Narayanan, SR
Jones, D
Strasser, P
SwiderLyons, K
Buchi, FN
Shirvanian, P
Nakagawa, H
Uchida, H
Mukerjee, S
Schmidt, TJ
Ramani, V
Fuller, T
Edmundson, M
Lamy, C
Mantz, R
TI Ionic-crosslinked interpenetrating polymer network (IPN) Membranes for
Anhydrous High Temperature Polymer Electrolyte Fuel Cells Based on PFSA
Ionomer and Functionalized Polysiloxane
SO POLYMER ELECTROLYTE FUEL CELLS 11
SE ECS Transactions
LA English
DT Proceedings Paper
CT 11th Polymer Electrolyte Fuel Cell Symposium (PEFC) Under the Auspices
of the 220th Meeting of the ECS
CY OCT, 2011
CL Boston, MA
SP ECS, Energy Technol (ETD), Phys & Analyt Electrochem (PAED), Battery (BATT), Ind Electrochem & Electrochem Engn (IEEE), Corros (CORR)
ID PROTON-CONDUCTING POLYMERS; KINETICS
AB To minimize humidity dependence and enhance temperature tolerance, anhydrous Polymer Electrolyte Membranes (PEM) are desired to allow fuel cells to operate with conductivities as high as 0.1S/cm at temperatures up to 120 degrees C. Heterocyclic molecules such as imidazole and triazole, similar to water, assist proton conduction due to self-dissociation. By doping into perfluorosulfonic acid (PFSA) ionomer, it could assist proton conducting through Grotthus mechanism, but with potential leaching issues under open circumstance. In this paper, the synthesis of siloxane tethered imidazole or 1,2,4-triazole is described, as is their in-situ polymerization by acidic catalysis with PFSA ionomers. Optically homogeneous membranes were obtained from these procedures. The dry membrane conductivity approaches 10(-3)S/cm, but doping with 30wt.% phosphoric acid shows conductivity of 10(-1)S/cm at 120 degrees C under dry conditions. The crosslinked interpenetrating polymer network (IPN) membranes, were characterized by microscopy, by analytical, electrochemical, thermal/mechanical, and physicochemical means, and tested for durability in the presence of Fenton reagent.
C1 [Zhu, Xiaobing; Martin, Zulima; Clark, Kyle; Brecht, Tobias; Potrekar, Ravindra A.; Burgess, Sean; Kerr, John B.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Environm Energy Technol Div, Berkeley, CA 94720 USA.
RP Zhu, XB (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Environm Energy Technol Div, 1 Cyclotron Rd,Mail Stop 62R203, Berkeley, CA 94720 USA.
EM jbkerr@lbl.gov
RI Zhu, Xiaobing/C-6122-2013;
OI Zhu, Xiaobing/0000-0003-1789-2546
NR 10
TC 0
Z9 0
U1 2
U2 12
PU ELECTROCHEMICAL SOC INC
PI PENNINGTON
PA 65 S MAIN ST, PENNINGTON, NJ 08534-2839 USA
SN 1938-5862
BN 978-1-60768-255-4
J9 ECS TRANSACTIONS
PY 2011
VL 41
IS 1
BP 2135
EP 2145
DI 10.1149/1.3635744
PG 11
WC Electrochemistry; Energy & Fuels; Polymer Science
SC Electrochemistry; Energy & Fuels; Polymer Science
GA BCB37
UT WOS:000309598800206
ER
PT S
AU Potrekar, RA
Clark, KT
Zhu, X
Kerr, JB
AF Potrekar, R. A.
Clark, K. T.
Zhu, X.
Kerr, J. B.
BE Gasteiger, HA
Weber, A
Narayanan, SR
Jones, D
Strasser, P
SwiderLyons, K
Buchi, FN
Shirvanian, P
Nakagawa, H
Uchida, H
Mukerjee, S
Schmidt, TJ
Ramani, V
Fuller, T
Edmundson, M
Lamy, C
Mantz, R
TI Blend Membranes of Highly Phosphonated Polysulfone and
Polybenzimidazoles for High Temperature Proton Exchange Membrane Fuel
Cells
SO POLYMER ELECTROLYTE FUEL CELLS 11
SE ECS Transactions
LA English
DT Proceedings Paper
CT 11th Polymer Electrolyte Fuel Cell Symposium (PEFC) Under the Auspices
of the 220th Meeting of the ECS
CY OCT, 2011
CL Boston, MA
SP ECS, Energy Technol (ETD), Phys & Analyt Electrochem (PAED), Battery (BATT), Ind Electrochem & Electrochem Engn (IEEE), Corros (CORR)
ID SYSTEMS
AB The aim of the presented work is to develop a polymer electrolyte having the specific composition of polysulfone (PSU) with phosphonic acid groups in the tethered form and polybenzimidazoles, doped with phosphoric acid, which facilitates self-ion transfer. The blended membranes show high proton conductivity (3.8 x 10(-2) S/cm at 170 degrees C at 25% RH) and have good thermal and mechanical properties.
C1 [Potrekar, R. A.; Clark, K. T.; Zhu, X.; Kerr, J. B.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Environm Energy Technol Div, Berkeley, CA 94720 USA.
RP Potrekar, RA (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Environm Energy Technol Div, 1 Cyclotron Rd, Berkeley, CA 94720 USA.
RI Zhu, Xiaobing/C-6122-2013;
OI Zhu, Xiaobing/0000-0003-1789-2546
NR 8
TC 2
Z9 2
U1 2
U2 11
PU ELECTROCHEMICAL SOC INC
PI PENNINGTON
PA 65 S MAIN ST, PENNINGTON, NJ 08534-2839 USA
SN 1938-5862
BN 978-1-60768-255-4
J9 ECS TRANSACTIONS
PY 2011
VL 41
IS 1
BP 2147
EP 2159
DI 10.1149/1.3635745
PG 13
WC Electrochemistry; Energy & Fuels; Polymer Science
SC Electrochemistry; Energy & Fuels; Polymer Science
GA BCB37
UT WOS:000309598800207
ER
PT S
AU Chlistunoff, J
Wilson, MS
Garzon, F
AF Chlistunoff, Jerzy
Wilson, Mahlon S.
Garzon, Fernando
BE Gasteiger, HA
Weber, A
Narayanan, SR
Jones, D
Strasser, P
SwiderLyons, K
Buchi, FN
Shirvanian, P
Nakagawa, H
Uchida, H
Mukerjee, S
Schmidt, TJ
Ramani, V
Fuller, T
Edmundson, M
Lamy, C
Mantz, R
TI Electrochemical Studies of Novel Pt/Ceria/C Oxygen Reduction Catalysts
for Fuel Cells
SO POLYMER ELECTROLYTE FUEL CELLS 11
SE ECS Transactions
LA English
DT Proceedings Paper
CT 11th Polymer Electrolyte Fuel Cell Symposium (PEFC) Under the Auspices
of the 220th Meeting of the ECS
CY OCT, 2011
CL Boston, MA
SP ECS, Energy Technol (ETD), Phys & Analyt Electrochem (PAED), Battery (BATT), Ind Electrochem & Electrochem Engn (IEEE), Corros (CORR)
ID ELECTROOXIDATION; ELECTROCATALYSTS; PERFORMANCE; CERIA; CEO2
AB Novel Pt/ceria/carbon catalysts with sub-2 nm ceria crystallites embedded in carbon matrixes, recently developed at Los Alamos National Laboratory, were studied in aqueous acidic media using rotating ring disk electrode (RRDE) and voltammetric techniques. The ceria nanophase was either pure or doped with trivalent gadolinium or praseodymium. The catalysts with lower Pt contents (3.8-5%) had higher specific surface areas and performed better than those with higher Pt contents (>= 8.5%). The doping with either Pr or Gd was found to improve the catalyst specific surface area, whereas Pr doped catalysts exhibited higher specific activities in oxygen reduction reaction (ORR) than non-doped and Gd doped catalysts. The former are also more selective for four-electron ORR. The presence of ceria in the catalyst support was found to increase the catalyst tolerance to CO poisoning.
C1 [Chlistunoff, Jerzy; Wilson, Mahlon S.; Garzon, Fernando] Los Alamos Natl Lab, Mat Phys & Applicat Div, Los Alamos, NM 87545 USA.
RP Chlistunoff, J (reprint author), Los Alamos Natl Lab, Mat Phys & Applicat Div, POB 1663, Los Alamos, NM 87545 USA.
OI Wilson, Mahlon/0000-0002-5944-2650
NR 10
TC 2
Z9 2
U1 4
U2 17
PU ELECTROCHEMICAL SOC INC
PI PENNINGTON
PA 65 S MAIN ST, PENNINGTON, NJ 08534-2839 USA
SN 1938-5862
BN 978-1-60768-255-4
J9 ECS TRANSACTIONS
PY 2011
VL 41
IS 1
BP 2341
EP 2348
DI 10.1149/1.3635768
PG 8
WC Electrochemistry; Energy & Fuels; Polymer Science
SC Electrochemistry; Energy & Fuels; Polymer Science
GA BCB37
UT WOS:000309598800230
ER
PT S
AU Boovaragavan, V
Srinivasan, V
AF Boovaragavan, Vijayasekaran
Srinivasan, Venkat
BE Manthiram, A
Abraham, KM
Meng, S
Wang, C
TI On the High Rate Capability of LiFePO4
SO RECHARGEABLE LITHIUM AND LITHIUM ION BATTERIES
SE ECS Transactions
LA English
DT Proceedings Paper
CT Symposium on Rechargeable Lithium and Lithium Ion Batteries held during
the 218th Meeting of the Electrochemical-Society
CY OCT 10-15, 2010
CL Las Vegas, NV
SP Electrochem Soc, Battery
ID LITHIUM; ELECTRODE; DISCHARGE; MODEL
AB A pseudo two-dimensional macro-homogeneous model has been used to understand the high-rate capability of LiFePO4. The circumstances that can facilitate the fast and ultra-fast rate behavior of this material are identified and discussed in detail. For the electrode designs used in the studies, it was found that the solid-phase mass transport rate has a significant effect on the rate capability of LiFePO4. The size distribution of the LiFePO4 particles has an effect on the high rate charge and discharge behavior of the material. These and other consequences are discussed using experimental data and model predictions.
C1 [Boovaragavan, Vijayasekaran; Srinivasan, Venkat] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Environm Energy Technol Div, Berkeley, CA 94720 USA.
RP Boovaragavan, V (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Environm Energy Technol Div, 1 Cyclotron Rd, Berkeley, CA 94720 USA.
NR 16
TC 0
Z9 0
U1 1
U2 3
PU ELECTROCHEMICAL SOC INC
PI PENNINGTON
PA 65 S MAIN ST, PENNINGTON, NJ 08534-2839 USA
SN 1938-5862
BN 978-1-56677-887-9
J9 ECS TRANSACTIONS
PY 2011
VL 33
IS 29
BP 17
EP 29
DI 10.1149/1.3564866
PG 13
WC Electrochemistry
SC Electrochemistry
GA BCA95
UT WOS:000309521900002
ER
PT S
AU Boovaragavan, V
Srinivasan, V
AF Boovaragavan, Vijayasekaran
Srinivasan, Venkat
BE Manthiram, A
Abraham, KM
Meng, S
Wang, C
TI Investigations on silicon composite electrodes for lithium-ion batteries
SO RECHARGEABLE LITHIUM AND LITHIUM ION BATTERIES
SE ECS Transactions
LA English
DT Proceedings Paper
CT Symposium on Rechargeable Lithium and Lithium Ion Batteries held during
the 218th Meeting of the Electrochemical-Society
CY OCT 10-15, 2010
CL Las Vegas, NV
SP Electrochem Soc, Battery
ID ANODES; LI; DISCHARGE
AB A porous electrode model for silicon anodes was developed and used to understand its performance. The model includes the volume change in Si and the phase transformation during the first intercalation reaction in addition to the porous electrode effect, kinetic behavior of Li+ intercalation/de-intercalation in Si, thermodynamic relationships, and mass and charge transport of Li+ in solid and liquid phases. First, the simulations were performed on a very thin (10 mu m) and highly porous (80%) electrode in order to estimate the solid-phase diffusion coefficient of Li+ ions in to the Si nanoparticles. This model and experiment based investigation predicts the value of Li+ diffusion in Si to be as low as 3.25x10(-16) cm(2)/s. Good agreement was seen between the model predictions and experimental data. The effect of particle size on the performance of Si electrode and the conditions under which Li15Si4 formation occurs during intercalation are analyzed. Next, the model was used to analyze the performance of Si when the electrode capacity is matched to a NCA cathode of 80 mu m thickness and 35% porosity with a loading of 3.6 mAh/cm(2) loading. The matching of the anode to cathode was performed for various cycling capacities for the Si (1000, 2000, and 3000 mAh/g) and simulations were conducted to understand the effect of rate on the charging of the anode and the associated concentration and design effects.
C1 [Boovaragavan, Vijayasekaran; Srinivasan, Venkat] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Environm Energy Technol Div, Berkeley, CA 94720 USA.
RP Boovaragavan, V (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Environm Energy Technol Div, 1 Cyclotron Rd, Berkeley, CA 94720 USA.
NR 12
TC 0
Z9 0
U1 1
U2 21
PU ELECTROCHEMICAL SOC INC
PI PENNINGTON
PA 65 S MAIN ST, PENNINGTON, NJ 08534-2839 USA
SN 1938-5862
BN 978-1-56677-887-9
J9 ECS TRANSACTIONS
PY 2011
VL 33
IS 29
BP 75
EP 90
DI 10.1149/1.3564871
PG 16
WC Electrochemistry
SC Electrochemistry
GA BCA95
UT WOS:000309521900007
ER
PT S
AU Zheng, HH
Ridgway, P
Song, XY
Xun, SD
Chong, J
Liu, G
Battaglia, V
AF Zheng, Honghe
Ridgway, Paul
Song, Xiangyun
Xun, Shidi
Chong, Jin
Liu, Gao
Battaglia, Vincent
BE Manthiram, A
Abraham, KM
Meng, S
Wang, C
TI Comparison of Cycling Performance of Lithium Ion Cell Anode Graphites
SO RECHARGEABLE LITHIUM AND LITHIUM ION BATTERIES
SE ECS Transactions
LA English
DT Proceedings Paper
CT Symposium on Rechargeable Lithium and Lithium Ion Batteries held during
the 218th Meeting of the Electrochemical-Society
CY OCT 10-15, 2010
CL Las Vegas, NV
SP Electrochem Soc, Battery
AB Battery grade graphite products from major suppliers to the battery industry were evaluated in 2325 coin cells with lithium counter electrodes. First and ongoing cycle efficiency, total and reversible capacity, cycle life and discharge rate performance were measured to compare these anode materials. We then ranked the graphites using a formula which incorporates these performance measures to estimate the cost of the overall system, relative to the cost of a system using MCMB. This analysis indicates that replacing MCMB with CCP-G8 (Conoco Phillips) would add little to no cost, whereas each of the other graphites would lead to a more costly system. Therefore we chose CCP-G8 as the new baseline graphite for the BATT program.
C1 [Zheng, Honghe; Ridgway, Paul; Song, Xiangyun; Xun, Shidi; Chong, Jin; Liu, Gao; Battaglia, Vincent] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
RP Zheng, HH (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, 1 Cyclotron Rd, Berkeley, CA 94720 USA.
NR 0
TC 1
Z9 2
U1 1
U2 8
PU ELECTROCHEMICAL SOC INC
PI PENNINGTON
PA 65 S MAIN ST, PENNINGTON, NJ 08534-2839 USA
SN 1938-5862
BN 978-1-56677-887-9
J9 ECS TRANSACTIONS
PY 2011
VL 33
IS 29
BP 91
EP 100
DI 10.1149/1.3564872
PG 10
WC Electrochemistry
SC Electrochemistry
GA BCA95
UT WOS:000309521900008
ER
PT J
AU Kremers, S
Fichtner, A
Brietzke, GB
Igel, H
Larmat, C
Huang, L
Kaser, M
AF Kremers, S.
Fichtner, A.
Brietzke, G. B.
Igel, H.
Larmat, C.
Huang, L.
Kaeser, M.
TI Exploring the potentials and limitations of the time-reversal imaging of
finite seismic sources
SO SOLID EARTH
LA English
DT Article
ID EARTHQUAKE SOURCES; SOURCE PARAMETERS; ADJOINT METHODS; TOMOGRAPHY;
ASSIMILATION; SEISMOLOGY; ACOUSTICS; INVERSION; MODELS; VALLEY
AB The characterisation of seismic sources with time-reversed wave fields is developing into a standard technique that has already been successful in numerous applications. While the time-reversal imaging of effective point sources is now well-understood, little work has been done to extend this technique to the study of finite rupture processes. This is despite the pronounced non-uniqueness in classic finite source inversions.
The need to better constrain the details of finite rupture processes motivates the series of synthetic and real-data time reversal experiments described in this paper. We address questions concerning the quality of focussing in the source area, the localisation of the fault plane, the estimation of the slip distribution and the source complexity up to which time-reversal imaging can be applied successfully. The frequency band for the synthetic experiments is chosen such that it is comparable to the band usually employed for finite source inversion.
Contrary to our expectations, we find that time-reversal imaging is useful only for effective point sources, where it yields good estimates of both the source location and the origin time. In the case of finite sources, however, the time-reversed field does not provide meaningful characterisations of the fault location and the rupture process. This result cannot be improved sufficiently with the help of different imaging fields, realistic modifications of the receiver geometry or weights applied to the time-reversed sources.
The reasons for this failure are manifold. They include the choice of the frequency band, the incomplete recording of wave field information at the surface, the excitation of large-amplitude surface waves that deteriorate the depth resolution, the absence of a sink that should absorb energy radiated during the later stages of the rupture process, the invisibility of small slip and the neglect of prior information concerning the fault geometry and the inherent smoothness of seismo-logically inferred Earth models that prevents the beneficial occurrence of strong multiple-scattering.
The condensed conclusion of our study is that the limitations of time-reversal imaging - at least in the frequency band considered here - start where the seismic source stops being effectively point-localised.
C1 [Kremers, S.; Fichtner, A.; Brietzke, G. B.; Igel, H.; Kaeser, M.] Univ Munich, Dept Earth & Environm Sci, D-80333 Munich, Germany.
[Larmat, C.; Huang, L.] Los Alamos Natl Lab, Geophys Grp EES 17, Los Alamos, NM 87545 USA.
RP Kremers, S (reprint author), Univ Munich, Dept Earth & Environm Sci, Theresienstr 41-3, D-80333 Munich, Germany.
EM kremers@geophysik.uni-muenchen.de
RI Igel, Heiner/E-9580-2010; Fichtner, Andreas/J-2554-2015;
OI Larmat, Carene S/0000-0002-3607-7558
FU European Commission; Research and Training Network SPICE; Initial
Training Network QUEST
FX HI and SK gratefully acknowledge support through the Geophysics Group at
Los Alamos National Labs for their research visits in 2008. We thank the
Leibniz Rechenzentrum Munich for providing access to their supercomputer
facilities and the IT support team (Jens Oeser) at the Geophysics
Section of the Department of Earth Sciences at LMU Munich. We are also
grateful to Martin Mai for giving us access to the SPICE dataset. We are
grateful to J.-P. Montagner and B. Artman whose comments improved the
manuscript. This work would not have been possible without the support
of the European Commission in connection with the Research and Training
Network SPICE (spice-rtn.org) and the Initial Training Network QUEST
(quest-itn.org).
NR 38
TC 13
Z9 13
U1 0
U2 5
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1869-9510
J9 SOLID EARTH
JI Solid Earth
PY 2011
VL 2
IS 1
BP 95
EP 105
DI 10.5194/se-2-95-2011
PG 11
WC Geochemistry & Geophysics
SC Geochemistry & Geophysics
GA 021KJ
UT WOS:000309883400009
ER
PT S
AU Sansinena, JM
Nelson, MA
Wilson, MS
Garzon, FH
AF Sansinena, J. M.
Nelson, M. A.
Wilson, M. S.
Garzon, F. H.
BE Zaghib, K
Julien, C
Ramani, V
TI Electrochemical Synthesis of Oxygen Reduction Catalysts based on Pt
Coated Polypyrrole Nanowires using Starch as Template Molecule
SO ELECTROCHEMISTRY OF NOVEL MATERIALS FOR ENERGY STORAGE AND CONVERSION
SE ECS Transactions
LA English
DT Proceedings Paper
CT Symposium on Electrochemistry of Novel Materials for Energy Storage and
Conversion held during the 218th Meeting of the Electrochemical-Society
CY OCT 10-15, 2010
CL Las Vegas, NV
SP Energy Technol, Electrochem Soc
ID PEM FUEL-CELLS
AB This study demonstrates a new method for the development of low loading Pt catalysts for the oxygen reduction reaction (ORR) based on the electrochemical synthesis of Pt coated polypyrrole (PPY) nanowires. PPY was deposited on different electrodes such as graphite, carbon paper gas diffusion layer (GDL), and glassy carbon by using chemical template molecules such as heparin and starch. Pt coated PPY/starch nanowires show ORR catalytic activity after the electrochemical degradation of PPY, which suggests that PPY/starch nanowires can be electrochemically converted to a stable high surface area support for ORR catalysts. Moreover, these low loading ORR Pt catalysts can be easily incorporated in the membrane electrode assembly (MEA) structure as a gas diffusion electrode (GDE) when directly prepared on a GDL.
C1 [Sansinena, J. M.; Nelson, M. A.; Wilson, M. S.; Garzon, F. H.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Sansinena, JM (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA.
OI Wilson, Mahlon/0000-0002-5944-2650
NR 5
TC 0
Z9 0
U1 0
U2 9
PU ELECTROCHEMICAL SOC INC
PI PENNINGTON
PA 65 S MAIN ST, PENNINGTON, NJ 08534-2839 USA
SN 1938-5862
BN 978-1-56677-885-5
J9 ECS TRANSACTIONS
PY 2011
VL 33
IS 27
BP 13
EP 19
DI 10.1149/1.3565496
PG 7
WC Electrochemistry
SC Electrochemistry
GA BCA88
UT WOS:000309515600002
ER
PT S
AU Au, M
Garcia-Diaz, B
Adams, T
He, YP
Zhao, YP
Yassar, RS
Ghassemi, H
AF Au, Ming
Garcia-Diaz, Brenda
Adams, Thad
He, Yuping
Zhao, Yiping
Yassar, Reza Shahbazian
Ghassemi, Hessam
BE Zaghib, K
Julien, C
Ramani, V
TI Tuning Silicon Nanorods for Anodes of Li-Ion Rechargeable Batteries
SO ELECTROCHEMISTRY OF NOVEL MATERIALS FOR ENERGY STORAGE AND CONVERSION
SE ECS Transactions
LA English
DT Proceedings Paper
CT Symposium on Electrochemistry of Novel Materials for Energy Storage and
Conversion held during the 218th Meeting of the Electrochemical-Society
CY OCT 10-15, 2010
CL Las Vegas, NV
SP Energy Technol, Electrochem Soc
ID SECONDARY BATTERIES; PARTICLES; COMPOSITE; ELECTRODE
AB Silicon is a promising anode material for Li-ion batteries in regarding of high capacity, low cost and safety, but it suffers poor cycling stability due to the pulverization induced by severe volume expansion/shrinkage (297%) during lithium insertion/extraction. In our previous investigation on aluminum nanorods anodes, it is found the selection of substrates in which Al nanorods grown plays the significant role in prevention of pulverization resulting in the increase of cycling life [1]. Adapting this knowledge, we investigated the Si based nanorods by tuning its composition and element distribution. Our results show that the Si-Cu composite nanorods demonstrated sustainable capacity of 500 mAh/g in 100 cycles attributing to its flexible and less brittle nature.
C1 [Au, Ming; Garcia-Diaz, Brenda; Adams, Thad] Savannah River Natl Lab, Aiken, SC USA.
RP Au, M (reprint author), Savannah River Natl Lab, Aiken, SC USA.
EM ming.au@srnl.doe.gov
NR 11
TC 0
Z9 0
U1 0
U2 2
PU ELECTROCHEMICAL SOC INC
PI PENNINGTON
PA 65 S MAIN ST, PENNINGTON, NJ 08534-2839 USA
SN 1938-5862
BN 978-1-56677-885-5
J9 ECS TRANSACTIONS
PY 2011
VL 33
IS 27
BP 35
EP 43
DI 10.1149/1.3565498
PG 9
WC Electrochemistry
SC Electrochemistry
GA BCA88
UT WOS:000309515600004
ER
PT S
AU Salazar-Villalpando, MD
AF Salazar-Villalpando, Maria D.
BE Zaghib, K
Julien, C
Ramani, V
TI Effect of Electrolyte on the Electrochemical Reduction of CO2
SO ELECTROCHEMISTRY OF NOVEL MATERIALS FOR ENERGY STORAGE AND CONVERSION
SE ECS Transactions
LA English
DT Proceedings Paper
CT Symposium on Electrochemistry of Novel Materials for Energy Storage and
Conversion held during the 218th Meeting of the Electrochemical-Society
CY OCT 10-15, 2010
CL Las Vegas, NV
SP Energy Technol, Electrochem Soc
ID CARBON-DIOXIDE; COPPER ELECTRODE; 3-PHASE INTERFACE; CU ELECTRODES;
ETHYLENE; METHANE; HYDROCARBONS; ADSORPTION; PRESSURE; SURFACE
AB Electrochemical experiments were carried out in a laboratory-made, divided H-type cell to study the electrochemical reduction of CO2. A copper wire, Ag/AgCl electrode and Pt wire were used as the working, reference and counter electrode, respectively. A potential ramp between 0 and -1.2 V was applied to the cell and the current was monitored as a function of potential. The effect of the electrolyte on the electrochemical reduction of CO2 was investigated by using NaHCO3 and KHCO3. It was observed that the latter electrolyte favored higher currents. This may be related to the cation size and electro negativity. The role of the electrolyte in this reaction may be explained by assuming that CO2 bonds to HCO3- and K+, generating intermediate specie prior to its electrochemical reduction. This would explain that the current increased as a function of KHCO3 concentration. The insertion of CO2 between the anion and the cation is a very important step in the electrochemical reaction. The formation of a new HCO3-C bond results in the weaking of C-O bond and the activation of CO2 occurs. The electron transfer from the electrode to the CO2 is facilitated.
C1 US DOE, Natl Energy Technol Lab, Morgantown, WV 26507 USA.
RP Salazar-Villalpando, MD (reprint author), US DOE, Natl Energy Technol Lab, Morgantown, WV 26507 USA.
NR 20
TC 3
Z9 3
U1 2
U2 27
PU ELECTROCHEMICAL SOC INC
PI PENNINGTON
PA 65 S MAIN ST, PENNINGTON, NJ 08534-2839 USA
SN 1938-5862
BN 978-1-56677-885-5
J9 ECS TRANSACTIONS
PY 2011
VL 33
IS 27
BP 77
EP 88
DI 10.1149/1.3565504
PG 12
WC Electrochemistry
SC Electrochemistry
GA BCA88
UT WOS:000309515600010
ER
PT B
AU Birn, J
AF Birn, Joachim
BE Lui, W
Fujimoto, M
TI Magnetotail Dynamics: Survey of Recent Progress
SO DYNAMIC MAGNETOSPHERE
SE IAGA Special Sopron Book Series
LA English
DT Article; Book Chapter
ID TRIGGERING SUBSTORM ONSET; THIN CURRENT SHEETS; BURSTY BULK FLOWS;
TILTED CURRENT SHEETS; PLASMA SHEET; DOUBLE STAR; TEMPERATURE
ANISOTROPY; CLUSTER OBSERVATIONS; EARTHS MAGNETOTAIL; GEOMAGNETIC TAIL
AB This survey focuses on three topics of magnetotail dynamics which constitute the vast majority of publications on tail dynamics in the period of this survey, from about mid 2007 to mid 2009: (1) the formation and properties of thin current sheets, (2) the timing of characteristic features around substorm onset, and (3) the properties of fast plasma flows, commonly denoted "bursty bulk flows" (BBFs), and associated dipolarization events. It is concluded that current sheet thinning from external deformation, accompanied by a reduction of B-z provides a viable mechanism for the onset of current sheet activity. After the first THEMIS results, the substorm onset timing remains controversial. However, it can be concluded that the onset arc brightening cannot be the consequence of dipolarization (current disruption) or reconnection and that there is a strong connection between earthward flow bursts and dipolarization events.
C1 Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Birn, J (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA.
EM jbirn@lanl.gov
NR 92
TC 6
Z9 6
U1 0
U2 1
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
BN 978-94-007-0500-5
J9 IAGA SPEC SOPRON
PY 2011
VL 3
BP 49
EP 63
DI 10.1007/978-94-007-0501-2_4
D2 10.1007/978-94-007-0501-2
PG 15
WC Astronomy & Astrophysics; Geochemistry & Geophysics
SC Astronomy & Astrophysics; Geochemistry & Geophysics
GA BYW59
UT WOS:000300646400004
ER
PT B
AU Jordanova, VK
AF Jordanova, Vania K.
BE Lui, W
Fujimoto, M
TI Self-Consistent Simulations of Plasma Waves and Their Effects on
Energetic Particles
SO DYNAMIC MAGNETOSPHERE
SE IAGA Special Sopron Book Series
LA English
DT Article; Book Chapter
ID ION-CYCLOTRON WAVES; LINEAR DIFFUSION-COEFFICIENTS; PITCH-ANGLE
DIFFUSION; RING CURRENT; RELATIVISTIC ELECTRONS; GEOMAGNETIC STORMS;
INNER MAGNETOSPHERE; CHARGE-EXCHANGE; HEAVY-IONS; MODEL
AB Understanding wave-particle interactions and their effects on energetic particle dynamics in near-Earth space is needed to develop models with predictive space weather capabilities. The local acceleration and/or loss of relativistic electrons are associated with two dominant magnetospheric plasma waves, whistler mode chorus emissions and electromagnetic ion cyclotron (EMIC) waves. The generation and propagation characteristics of EMIC waves depend strongly on the presence of both cold and energetic heavy ions (mainly He+ and O+) in the plasmas, which varies significantly with geomagnetic and solar activity. We present self-consistent studies of the excitation of these waves during geomagnetic storms after the fresh injection of plasma sheet particles into the inner magnetosphere. We use our four-dimensional (4D) kinetic ring current-atmosphere interactions model (RAM), which includes time-dependent convective transport and radial diffusion, all major loss processes, and is coupled with a dynamic (2D) plasmasphere model. The boundary conditions are specified by a plasma sheet source population at geosynchronous orbit that varies both in space and time. We calculate the pitch angle anisotropy of ring current ions and electrons and identify equatorial regions for potential growth of EMIC waves and whistler mode chorus, respectively. We show that He+ band EMIC wave excitation may be significantly reduced by ring current O+ ions during storm peak conditions when O+ contribution increases. We find that the linear growth rate of chorus waves maximizes at large L shells in the midnight-to-dawn local time sector, while EMIC waves are most intense in the afternoon sector in agreement with previous satellite observations.
C1 Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Jordanova, VK (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA.
OI Jordanova, Vania/0000-0003-0475-8743
NR 57
TC 1
Z9 1
U1 0
U2 0
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
BN 978-94-007-0500-5
J9 IAGA SPEC SOPRON
PY 2011
VL 3
BP 189
EP 199
DI 10.1007/978-94-007-0501-2_10
D2 10.1007/978-94-007-0501-2
PG 11
WC Astronomy & Astrophysics; Geochemistry & Geophysics
SC Astronomy & Astrophysics; Geochemistry & Geophysics
GA BYW59
UT WOS:000300646400010
ER
PT S
AU Driscoll, PF
Yang, L
Gervais, M
Kerr, JB
AF Driscoll, Peter F.
Yang, Li
Gervais, Matthieu
Kerr, John B.
BE Liaw, BY
Kostecki, R
Trulove, P
TI Polyelectrolyte Membranes Containing Lithium Malonato( difluoro) borate
for Lithium Ion Systems
SO ELECTRODE-ELECTROLYTE INTERFACES IN LI-ION BATTERIES
SE ECS Transactions
LA English
DT Proceedings Paper
CT Symposium on Electrode-Electrolyte Interfaces in Li-Ion Batteries held
during the 218th Meeting of the Electrochemical-Society (ECS)
CY OCT 10-15, 2010
CL Las Vegas, NV
SP Electrochem Soc (ECS), Battery, Phys & Analyt Electrochem
ID BRANCHED POLYEPOXIDE ETHERS; POLYMER ELECTROLYTES; TRANSPORT-PROPERTIES;
CONDUCTORS; BATTERIES; BIS(ALLYLMALONATO)BORATE; GEL
AB A new salt, lithium malonato(difluoro) borate (LiMDFB), and two similar analogues, were synthesized and incorporated into polymer electrolyte membranes to investigate the bulk and interfacial properties as both a binary salt system and a single-ion conducting electrolyte for lithium ion batteries. Symmetric lithium/lithium cells were assembled with membranes composed of polyethylene oxide (PEO) doped with LiMDFB analogues along with LiTFSI for comparison. Conductivities and exchange current densities were determined from electrochemical impedance spectroscopy measurements and the interfacial impedance was shown contribute significantly to the overall impedance for LiMDFB cells.
C1 [Driscoll, Peter F.; Yang, Li; Gervais, Matthieu; Kerr, John B.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Environm Energy Technol Div, Berkeley, CA 94720 USA.
RP Driscoll, PF (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Environm Energy Technol Div, Berkeley, CA 94720 USA.
NR 21
TC 3
Z9 3
U1 1
U2 10
PU ELECTROCHEMICAL SOC INC
PI PENNINGTON
PA 65 S MAIN ST, PENNINGTON, NJ 08534-2839 USA
SN 1938-5862
BN 978-1-56677-879-4
J9 ECS TRANSACTIONS
PY 2011
VL 33
IS 23
BP 33
EP 53
DI 10.1149/1.3557699
PG 21
WC Electrochemistry
SC Electrochemistry
GA BCA49
UT WOS:000309451600003
ER
PT S
AU Papageorgopoulos, DC
Benjamin, TG
Kopasz, JP
Podolski, WF
AF Papageorgopoulos, D. C.
Benjamin, T. G.
Kopasz, J. P.
Podolski, W. F.
BE Williams, MC
Garland, N
TI Status of the U. S. Department Of Energy, Energy Efficiency and
Renewable Energy's Fuel Cell Research and Development Efforts
SO FUEL CELL SEMINAR 2010
SE ECS Transactions
LA English
DT Proceedings Paper
CT Fuel Cell Seminar and Exposition
CY OCT 18-21, 2010
CL San Antonio, TX
AB The U.S. Department of Energy (DOE) Fuel Cell Technologies Program, in the Office of Energy Efficiency and Renewable Energy (EERE), seeks to enable the widespread commercialization of fuel cells, through applied research and development (R&D) to overcome technical barriers, as well as through efforts to reduce institutional and market barriers. In support of this goal, DOE funds a broad range of fuel cell R&D activities with emphasis on materials, fuel cell stack components, balance of plant (BOP) subsystems, and integrated fuel cell systems targeting lower cost and enhanced durability. Fuel cell system cost estimates for transportation applications have illustrated that catalysts and system BOP are major cost drivers at high-volume production. Membranes are a cost driver at lower production volumes. The DOE has supported research to develop improved fuel cell catalysts and membranes, and to characterize and optimize transport phenomena to improve membrane electrode assembly (MEA) and stack performance.
C1 [Papageorgopoulos, D. C.] US DOE, Washington, DC 20585 USA.
RP Papageorgopoulos, DC (reprint author), US DOE, Washington, DC 20585 USA.
NR 27
TC 1
Z9 1
U1 1
U2 3
PU ELECTROCHEMICAL SOC INC
PI PENNINGTON
PA 65 S MAIN ST, PENNINGTON, NJ 08534-2839 USA
SN 1938-5862
BN 978-1-56677-883-1
J9 ECS TRANSACTIONS
PY 2011
VL 30
IS 1
BP 3
EP 15
DI 10.1149/1.3562454
PG 13
WC Electrochemistry; Energy & Fuels
SC Electrochemistry; Energy & Fuels
GA BCA08
UT WOS:000309358700001
ER
PT S
AU Blackmore, KJ
Bauer, E
Elbaz, L
Brosha, EL
McCleskey, TM
Burrell, AK
AF Blackmore, K. J.
Bauer, E.
Elbaz, L.
Brosha, E. L.
McCleskey, T. M.
Burrell, A. K.
BE Williams, MC
Garland, N
TI Engineered Nano-scale Ceramic Supports for PEM Fuel Cells
SO FUEL CELL SEMINAR 2010
SE ECS Transactions
LA English
DT Proceedings Paper
CT Fuel Cell Seminar and Exposition
CY OCT 18-21, 2010
CL San Antonio, TX
ID ELECTROCATALYST; PLATINUM; ELECTRODES
AB Alternative supports for polymer electrolyte membrane fuel cells were synthesized and catalytic activity was explored using electrochemical analysis. High surface area, molybdenum nitride supports were synthesized by rapidly heating a gel of polyethyleneimine bound molybdenum in a tube furnace under a forming gas atmosphere. Subsequent disposition of platinum through an incipient wetness approach lead to dispersed crystallites of platinum on the conductive support. The supports without platinum are highly stable to acidic aqueous conditions and show no signs of oxygen reduction reactivity (ORR). However, once the 20 wt% platinum is added to the material, ORR activity comparable to XC72 based materials is observed.
C1 [Blackmore, K. J.; Bauer, E.; Elbaz, L.; Brosha, E. L.; McCleskey, T. M.; Burrell, A. K.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Blackmore, KJ (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA.
RI McCleskey, Thomas/J-4772-2012;
OI Mccleskey, Thomas/0000-0003-3750-3245
NR 21
TC 1
Z9 1
U1 2
U2 14
PU ELECTROCHEMICAL SOC INC
PI PENNINGTON
PA 65 S MAIN ST, PENNINGTON, NJ 08534-2839 USA
SN 1938-5862
BN 978-1-56677-883-1
J9 ECS TRANSACTIONS
PY 2011
VL 30
IS 1
BP 83
EP 90
DI 10.1149/1.3562462
PG 8
WC Electrochemistry; Energy & Fuels
SC Electrochemistry; Energy & Fuels
GA BCA08
UT WOS:000309358700009
ER
PT S
AU Liu, DJ
Goenaga, G
Ma, SQ
Yuan, SW
Shui, JL
AF Liu, Di-Jia
Goenaga, Gabriel
Ma, Shengqian
Yuan, Shengwen
Shui, Jianglan
BE Williams, MC
Garland, N
TI NEW APPROACHES TO NON-PGM CATALYSTS THROUGH RATIONAL DESIGN
SO FUEL CELL SEMINAR 2010
SE ECS Transactions
LA English
DT Proceedings Paper
CT Fuel Cell Seminar and Exposition
CY OCT 18-21, 2010
CL San Antonio, TX
ID ALIGNED CARBON NANOTUBES; FUEL-CELL CATHODE; REDUCTION; OXYGEN
AB The catalytic oxygen reduction reaction (ORR) at the cathode represents the rate-limiting step in the overall electrocatalytic process inside of a proton exchange membrane fuel cell (PEMFC). The platinum group metals (PGMs) are current materials of choice for the cathode catalyst. Their high costs and limited reserves pose a significant challenge in implementing PEMFC for broad base commercial application. In this report, we discuss some of our recent activities in developing non-PGM electrocatalysts using rational design and synthesis approach. A variety of porous organic materials were developed as the catalyst precursors for the preparation of ORR catalysts with high surface area and active site density free of additional carbon support. Electrocatalytic activity and physical property of the new catalysts were investigated by various techniques in an attempt to understand the process of the active site formation.
C1 [Liu, Di-Jia; Goenaga, Gabriel; Ma, Shengqian; Yuan, Shengwen; Shui, Jianglan] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA.
RP Liu, DJ (reprint author), Argonne Natl Lab, Chem Sci & Engn Div, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM djliu@anl.gov
NR 12
TC 2
Z9 2
U1 2
U2 7
PU ELECTROCHEMICAL SOC INC
PI PENNINGTON
PA 65 S MAIN ST, PENNINGTON, NJ 08534-2839 USA
SN 1938-5862
BN 978-1-56677-883-1
J9 ECS TRANSACTIONS
PY 2011
VL 30
IS 1
BP 97
EP 104
DI 10.1149/1.3562464
PG 8
WC Electrochemistry; Energy & Fuels
SC Electrochemistry; Energy & Fuels
GA BCA08
UT WOS:000309358700011
ER
PT S
AU Bloom, I
Walker, LK
Basco, JK
Malkow, T
De Marco, G
Tsotridis, G
AF Bloom, I.
Walker, L. K.
Basco, J. K.
Malkow, T.
De Marco, G.
Tsotridis, G.
BE Williams, MC
Garland, N
TI A Comparison of Fuel Cell Test Protocols
SO FUEL CELL SEMINAR 2010
SE ECS Transactions
LA English
DT Proceedings Paper
CT Fuel Cell Seminar and Exposition
CY OCT 18-21, 2010
CL San Antonio, TX
AB Argonne National Laboratory (Argonne) and JRC-IE are collaborating with the European Union's FCTESQA project to compare and validate the fuel cell test protocols being developed by the European Union and the United States. These protocols consist of how to obtain polarization curves and cycling profiles. The work at Argonne showed that when performed at one site, there were no significant differences in the shape and trend of the polarization curve. These findings were observed using two fuel cells stacks representing different technologies. In the polarization data there was a test-site-to-test-site difference, on the order of 5%. Thus far, the work with the cycling profiles showed that there are also differences in how the stack ages. The underlying reasons for these differences are under investigation.
C1 [Bloom, I.; Walker, L. K.; Basco, J. K.] Argonne Natl Lab, Argonne, IL 60439 USA.
RP Bloom, I (reprint author), Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA.
NR 8
TC 4
Z9 5
U1 1
U2 7
PU ELECTROCHEMICAL SOC INC
PI PENNINGTON
PA 65 S MAIN ST, PENNINGTON, NJ 08534-2839 USA
SN 1938-5862
BN 978-1-56677-883-1
J9 ECS TRANSACTIONS
PY 2011
VL 30
IS 1
BP 227
EP 235
DI 10.1149/1.3562478
PG 9
WC Electrochemistry; Energy & Fuels
SC Electrochemistry; Energy & Fuels
GA BCA08
UT WOS:000309358700025
ER
PT S
AU Ho, DL
Kopasz, JP
Benjamin, TG
Podolski, WF
AF Ho, D. L.
Kopasz, J. P.
Benjamin, T. G.
Podolski, W. F.
BE Williams, MC
Garland, N
TI The US Department of Energy Efforts in Fuel Cells for Portable Power
Applications
SO FUEL CELL SEMINAR 2010
SE ECS Transactions
LA English
DT Proceedings Paper
CT Fuel Cell Seminar and Exposition
CY OCT 18-21, 2010
CL San Antonio, TX
AB It is anticipated that portable power applications, such as consumer electronics, notebook PCs, unattended security devices, battery chargers, and emergency response mobile communications will provide an early market for fuel cell technologies. Direct methanol fuel cells (DMFCs) are well suited for these applications where the power requirements are low and the cost targets and infrastructure requirements are not as demanding as for transportation applications. The U.S. Department of Energy (DOE) is funding efforts to develop new cell components such as membranes and catalysts and is supporting system development and design to meet performance, durability, packaging and life-cycle cost targets. This paper describes the approaches being taken by DOE-funded researchers, recent progress, and the current state-of-the-art.
C1 [Ho, D. L.] US DOE, Fuel Cell Technol Program, Washington, DC 20585 USA.
RP Ho, DL (reprint author), US DOE, Fuel Cell Technol Program, Washington, DC 20585 USA.
NR 5
TC 0
Z9 0
U1 1
U2 3
PU ELECTROCHEMICAL SOC INC
PI PENNINGTON
PA 65 S MAIN ST, PENNINGTON, NJ 08534-2839 USA
SN 1938-5862
BN 978-1-56677-883-1
J9 ECS TRANSACTIONS
PY 2011
VL 30
IS 1
BP 337
EP 343
DI 10.1149/1.3562489
PG 7
WC Electrochemistry; Energy & Fuels
SC Electrochemistry; Energy & Fuels
GA BCA08
UT WOS:000309358700036
ER
PT J
AU Biswas, R
Xu, C
Zhao, WJ
Liu, R
Shinar, R
Shinar, J
AF Biswas, Rana
Xu, Chun
Zhao, Weijun
Liu, Rui
Shinar, Ruth
Shinar, Joseph
TI Simulations of emission from microcavity tandem organic light-emitting
diodes
SO JOURNAL OF PHOTONICS FOR ENERGY
LA English
DT Article
DE photonics; light emission; simulation; microcavity tandem organic
light-emitting diodes
ID RESONANT CAVITIES; DEVICES; DESIGN
AB Microcavity tandem organic light-emitting diodes (OLEDs) are simulated and compared to experimental results. The simulations are based on two complementary techniques: rigorous finite element solutions of Maxwell's equations and Fourier space scattering matrix solutions. A narrowing and blue shift of the emission spectrum relative to the noncavity single unit OLED is obtained both theoretically and experimentally. In the simulations, a distribution of emitting sources is placed near the interface of the electron transport layer tris(8-hydroxyquinoline) Al (Alq(3)) and the hole transport layer (N,N'-bis(naphthalen-1-yl)-N,N'-bis(phenyl)benzidine (alpha-NPB). Far-field electric field intensities are simulated. The simulated widths of the emission peaks also agree with the experimental results. The simulations of the 2-unit tandem OLEDs shifted the emission to shorter wavelength, in agreement with experimental measurements. The emission spectra's dependence on individual layer thicknesses also agreed well with measurements. Approaches to simulate and improve the light emission intensity from these OLEDs, in particular for white OLEDs, are discussed. (C) 2011 Society of Photo-Optical Instrumentation Engineers (SPIE). [DOI: 10.1117/1.3552947]
C1 [Biswas, Rana; Xu, Chun; Liu, Rui; Shinar, Joseph] Iowa State Univ, Dept Phys & Astron, Ames Lab, Ames, IA 50011 USA.
[Biswas, Rana; Xu, Chun; Zhao, Weijun; Shinar, Ruth] Iowa State Univ, Microelect Res Ctr, Dept Elect & Comp Engn, Ames, IA 50011 USA.
RP Biswas, R (reprint author), Iowa State Univ, Dept Phys & Astron, Ames Lab, Ames, IA 50011 USA.
EM biswasr@iastate.edu
FU Department of Energy, Division of Basic Energy Sciences
[DE-AC02-07CH11358]; National Science Foundation [ECCS-0601377]
FX We acknowledge very helpful discussions with K. M. Ho and Ames
Laboratory Photonics group members. Research at the Ames Laboratory was
supported by the Department of Energy, Division of Basic Energy
Sciences, under Contract No. DE-AC02-07CH11358. R. B. acknowledges
funding from the National Science Foundation through Grant No.
ECCS-0601377.
NR 22
TC 5
Z9 5
U1 5
U2 26
PU SPIE-SOC PHOTO-OPTICAL INSTRUMENTATION ENGINEERS
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98225 USA
SN 1947-7988
J9 J PHOTON ENERGY
JI J. Photonics Energy
PY 2011
VL 1
SI 1
AR 011016
DI 10.1117/1.3552947
PG 11
WC Materials Science, Multidisciplinary; Optics; Physics, Applied
SC Materials Science; Optics; Physics
GA 014FW
UT WOS:000309361600016
ER
PT J
AU Chen, Y
Cai, M
Hellerich, E
Liu, R
Gan, ZQ
Shinar, R
Shinar, J
AF Chen, Ying
Cai, Min
Hellerich, Emily
Liu, Rui
Gan, Zhengqing
Shinar, Ruth
Shinar, Joseph
TI Evidence for holes beyond the recombination zone and trions in the
electron transport layer of organic light-emitting diodes
SO JOURNAL OF PHOTONICS FOR ENERGY
LA English
DT Article
DE holes beyond the recombination zone; optically detected magnetic
resonance; photoinduced absorption-detected magnetic resonance;
photoluminescence-detected magnetic resonance;
electroluminescence-detected magnetic resonance; electrically detected
magnetic resonance; transient electroluminescence spikes
ID DETECTED MAGNETIC-RESONANCE; PI-CONJUGATED POLYMERS;
ELECTROLUMINESCENCE; POLARONS; EXCITONS; POLY(PARAPHENYLENEVINYLENE);
PHOTOEXCITATIONS; SEMICONDUCTORS; FABRICATION; BIPOLARONS
AB Recent electroluminescence (EL) detected magnetic resonance and transient EL studies reveal the presence and role of holes that drift beyond the recombination zone and approach the cathode in small molecular organic light-emitting diodes (OLEDs) with specific materials and structures. In particular, these studies suggest that these holes are responsible for trion (i.e., a bipolaron stabilized by a counterpolaron on an adjacent molecule) formation in the electron transport layer, and may contribute to EL spikes observed at the end of a bias pulse. The significance of these holes to overall OLED performance is discussed. (C) 2011 Society of Photo-Optical Instrumentation Engineers (SPIE). [DOI: 10.1117/1.3569107]
C1 [Chen, Ying; Cai, Min; Hellerich, Emily; Liu, Rui; Gan, Zhengqing; Shinar, Joseph] Iowa State Univ, Ames Lab, US DOE, Ames, IA 50011 USA.
[Chen, Ying; Cai, Min; Hellerich, Emily; Liu, Rui; Gan, Zhengqing; Shinar, Joseph] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA.
[Shinar, Ruth] Iowa State Univ, Microelect Res Ctr, Ames, IA 50011 USA.
[Shinar, Ruth] Iowa State Univ, Dept Elect & Comp Engn, Ames, IA 50011 USA.
RP Chen, Y (reprint author), Iowa State Univ, Ames Lab, US DOE, Ames, IA 50011 USA.
EM jshinar@iastate.edu
RI Cai, Min/A-2678-2014
FU US Department of Energy (USDOE) [DE-AC 02-07CH11358]; Office of Basic
Energy Science, Division of Materials Sciences and Engineering, USDOE
FX Ames Laboratory is operated by Iowa State University for the US
Department of Energy (USDOE) under Contract No. DE-AC 02-07CH11358. This
work was supported by the Office of Basic Energy Science, Division of
Materials Sciences and Engineering, USDOE.
NR 33
TC 1
Z9 1
U1 3
U2 11
PU SPIE-SOC PHOTO-OPTICAL INSTRUMENTATION ENGINEERS
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98225 USA
SN 1947-7988
J9 J PHOTON ENERGY
JI J. Photonics Energy
PY 2011
VL 1
SI 1
AR 011017
DI 10.1117/1.3569107
PG 8
WC Materials Science, Multidisciplinary; Optics; Physics, Applied
SC Materials Science; Optics; Physics
GA 014FW
UT WOS:000309361600017
ER
PT J
AU Polikarpov, E
Koech, PK
Wang, L
Swensen, JS
Cosimbescu, L
Rainbolt, JE
Von Ruden, AL
Gaspar, DJ
Padmaperuma, AB
AF Polikarpov, Evgueni
Koech, Phillip K.
Wang, Liang
Swensen, James S.
Cosimbescu, Lelia
Rainbolt, James E.
Von Ruden, Amber L.
Gaspar, Daniel J.
Padmaperuma, Asanga B.
TI Controlling charge transport in blue organic light-emitting devices by
chemical functionalization of host materials
SO JOURNAL OF PHOTONICS FOR ENERGY
LA English
DT Article
DE phosphorescence; host materials; blue light-emitting devices; organic
light-emitting devices; charge balance
ID TRIPLET EXCITONS; EFFICIENT; ELECTROPHOSPHORESCENCE; DIODES
AB We report the photophysical characterization, computational results, and device properties for ambipolar phosphine oxide-based host materials that were chemically functionalized to control the charge transport. We study the effects of structural modifications of phosphine oxide hosts on the charge balance in the emissive zone of organic light-emitting devices (OLEDs). Significant changes in charge transport within the emissive layer are observed upon introduction of functional groups, such as pyridine and carbazole, into the organic phosphine oxide host structure. We demonstrate that rational design of host materials allows for the control of charge balance in the emissive zone of OLEDs. (C) 2011 Society of Photo-Optical Instrumentation Engineers (SPIE). [DOI: 10.1117/1.3528499]
C1 [Polikarpov, Evgueni; Koech, Phillip K.; Wang, Liang; Swensen, James S.; Cosimbescu, Lelia; Rainbolt, James E.; Von Ruden, Amber L.; Gaspar, Daniel J.; Padmaperuma, Asanga B.] Pacific NW Natl Lab, Energy & Environm Directorate, Richland, WA 99352 USA.
RP Polikarpov, E (reprint author), Pacific NW Natl Lab, Energy & Environm Directorate, Richland, WA 99352 USA.
EM Phillip.Koech@pnl.gov
RI Gaspar, Dan/H-6166-2011;
OI Koech, Phillip/0000-0003-2996-0593
FU Solid State Lighting Program of the U.S. Dept. of Energy [M68004043];
U.S. Department of Energy [DE-AC06-76RLO 1830]; Department of Energy's
Office of Biological and Environmental Research
FX This work was funded by the Solid State Lighting Program of the U.S.
Dept. of Energy, within the Building Technologies Program (BT), Award
No. M68004043 and managed by the National Energy Technology Laboratory
(NETL). Pacific Northwest National Laboratory operated by Battelle
Memorial Institute for the U.S. Department of Energy under Contract No.
DE-AC06-76RLO 1830. Computations were carried out using NWChem, A
Computational Chemistry Package for Parallel Computers, Version 5.1
(2007), developed at the High Performance Computational Chemistry Group,
Pacific Northwest National Laboratory, Richland, Washington 99352-0999.
Extensible Computational Chemistry Environment (ECCE), A Problem Solving
Environment for Computational Chemistry, Software Version 6.0 (2009), as
developed and distributed by Pacific Northwest National Laboratory, P.O.
Box 999, Richland, Washington 99352, and funded by the U.S. Department
of Energy, was used to obtain some of these results. We thank Dr. Alan
Joly for the assistance in collecting low-temperature phosphorescence
spectra. A portion of the research described in this paper was performed
in the Environmental Molecular Sciences Laboratory, a national
scientific user facility sponsored by the Department of Energy's Office
of Biological and Environmental Research and located at Pacific
Northwest National Laboratory.
NR 19
TC 0
Z9 0
U1 0
U2 4
PU SPIE-SOC PHOTO-OPTICAL INSTRUMENTATION ENGINEERS
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98225 USA
SN 1947-7988
J9 J PHOTON ENERGY
JI J. Photonics Energy
PY 2011
VL 1
SI 1
AR 011007
DI 10.1117/1.3528499
PG 10
WC Materials Science, Multidisciplinary; Optics; Physics, Applied
SC Materials Science; Optics; Physics
GA 014FW
UT WOS:000309361600007
ER
PT J
AU Swensen, JS
Rainbolt, JE
Wang, L
Koech, PK
Polikarpov, E
Padmaperuma, AB
Gaspar, DJ
AF Swensen, James S.
Rainbolt, James E.
Wang, Liang
Koech, Phillip K.
Polikarpov, Evgueni
Padmaperuma, Asanga B.
Gaspar, Daniel J.
TI Blue phosphorescent organic light-emitting devices utilizing
cesium-carbonate-doped 2,4,6-tris(2 ',4 '-difluoro-[1,1
'-biphenyl]-4-yl)-1,3,5-triazine
SO JOURNAL OF PHOTONICS FOR ENERGY
LA English
DT Article
DE p-i-n organic light-emitting devices; doping; phosphorescence; cesium
carbonate; triazine
ID ELECTRON-TRANSPORT LAYER; HIGH-EFFICIENCY; ELECTROLUMINESCENT DEVICES;
DIODES; INJECTION; CATHODE; DOPANT; FILMS; LIF
AB We report an alternative, high-yielding synthesis for the known compound 2,4,6-tris(2',4'-difluoro-[1,1'-biphenyl]-4-yl)-1,3,5-triazine (tris-(dFB)Tz). The energy of the lowest unoccupied molecular orbital (E-LUMO) for tris-(dFB) Tz is estimated to be -3.5 eV from electrochemical measurements. The deep E-LUMO of tris-(dFB)Tz affords a material with excellent electron acceptor characteristics for use in n-doped electron transport layers. Tris-(dFB)Tz shows a four order of magnitude increase in the number of carriers on doping with 8 wt. % Cs2CO3. Enhanced electron injection was also observed on doping with Cs2CO3, which eliminated the necessity for a separate LiF electron injection layer. Blue phosphorescent organic light-emitting devices (OLEDs) were fabricated using n-doped tris-(dFB)Tz electron transport layers. OLEDs with thick (700-angstrom) Cs2CO3-doped tris-(dFB)Tz electron transport layers had lower operating voltages than OLEDS with an undoped electron transport layer of bis(diphenylphosphoryl)dibenzothiophene (PO15), which has previously been used in low-voltage, high-efficiency OLEDs. The tris-(dFB)Tz results indicate that aromatic substituted triazines may be promising materials for use as electron acceptors in n-doped organic electronic systems. (C) 2011 Society of Photo-Optical Instrumentation Engineers (SPIE). [DOI: 10.1117/1.3528003]
C1 [Swensen, James S.; Rainbolt, James E.; Wang, Liang; Koech, Phillip K.; Polikarpov, Evgueni; Padmaperuma, Asanga B.; Gaspar, Daniel J.] Pacific NW Natl Lab, Energy & Environm Directorate, Richland, WA 99352 USA.
RP Swensen, JS (reprint author), Pacific NW Natl Lab, Energy & Environm Directorate, Richland, WA 99352 USA.
EM Daniel.Gaspar@pnl.gov
RI Gaspar, Dan/H-6166-2011;
OI Koech, Phillip/0000-0003-2996-0593
FU Solid State Lighting Program of the U.S. Department of Energy (US DOE)
[M6743231]; Department of Energy's Office of Biological and
Environmental Research; US DOE [DE_AC06-76RLO 1830]
FX This project was funded by the Solid State Lighting Program of the U.S.
Department of Energy (US DOE), within the Building Technologies Program
(Award No. M6743231, managed by the National Energy Technology
Laboratory). A portion of this research was performed using the
Environmental Molecular Science Laboratory, a national scientific user
facility sponsored by the Department of Energy's Office of Biological
and Environmental Research and located at Pacific Northwest National
Laboratory (PNNL). Computations were performed using NWChem, a
computational chemistry package for parallel computers, version 5.1
(2007), which was developed at the High Performance Computational
Chemistry Group, PNNL, Richland, Washington. PNNL is operated by
Battelle Memorial Institute for the US DOE (under Contract No.
DE_AC06-76RLO 1830).
NR 35
TC 3
Z9 3
U1 3
U2 6
PU SPIE-SOC PHOTO-OPTICAL INSTRUMENTATION ENGINEERS
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98225 USA
SN 1947-7988
J9 J PHOTON ENERGY
JI J. Photonics Energy
PY 2011
VL 1
SI 1
AR 011008
DI 10.1117/1.3528003
PG 11
WC Materials Science, Multidisciplinary; Optics; Physics, Applied
SC Materials Science; Optics; Physics
GA 014FW
UT WOS:000309361600008
ER
PT S
AU Hess-Flores, M
Knoblauch, D
Duchaineau, MA
Joy, KI
Kuester, F
AF Hess-Flores, Mauricio
Knoblauch, Daniel
Duchaineau, Mark A.
Joy, Kenneth I.
Kuester, Falko
BE Ho, YS
TI Ray Divergence-Based Bundle Adjustment Conditioning for Multi-view
Stereo
SO ADVANCES IN IMAGE AND VIDEO TECHNOLOGY, PT I
SE Lecture Notes in Computer Science
LA English
DT Proceedings Paper
CT 5th Pacific-Rim Symposium on Video and Image Technology
CY NOV 20-23, 2011
CL Gwangju, SOUTH KOREA
SP GIST, Realist Broadcast Res Ctr, GIST, Ctr Informat Technol Educ, Gwangju Convent & Visitors Bur, MPEG Forum Korea
DE Multi-view reconstruction; ray divergence; weighted bundle adjustment;
confidence ellipsoids; image feature covariances
ID CAMERA; SCALE; 3D
AB An algorithm that shows how ray divergence in multi-view stereo scene reconstruction can be used towards improving bundle adjustment weighting and conditioning is presented. Starting with a set of feature tracks, ray divergence when attempting to compute scene structure for each track is first obtained. Assuming accurate feature matching, ray divergence reveals mainly camera parameter estimation inaccuracies. Due to its smooth variation across neighboring feature tracks, from its histogram a set of weights can be computed that can be used in bundle adjustment to improve its convergence properties. It is proven that this novel weighting scheme results in lower reprojection errors and faster processing times than others such as image feature covariances, making it very suitable in general for applications involving multi-view pose and structure estimation.
C1 [Hess-Flores, Mauricio; Joy, Kenneth I.] Univ Calif Davis, Inst Data Anal & Visualizat, Davis, CA 95616 USA.
[Knoblauch, Daniel; Kuester, Falko] Univ Calif, San Diego, CA USA.
[Duchaineau, Mark A.] Lawrence Livermore Natl Lab, Livermore, CA USA.
RP Hess-Flores, M (reprint author), Univ Calif Davis, Inst Data Anal & Visualizat, Davis, CA 95616 USA.
EM mhessf@ucdavis.edu; dknoblau@ucsd.edu; duchaine@llnl.gov;
kijoy@ucdavis.edu; fkuester@ucsd.edu
FU U.S. Department of Energy by Lawrence Livermore National Laboratory
[DE-AC52-07NA27344]
FX This work was performed under the auspices of the U.S. Department of
Energy by Lawrence Livermore National Laboratory under Contract
DE-AC52-07NA27344.
NR 15
TC 0
Z9 0
U1 0
U2 0
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
SN 0302-9743
BN 978-3-642-25366-9
J9 LECT NOTES COMPUT SC
PY 2011
VL 7087
BP 153
EP +
PG 2
WC Computer Science, Information Systems; Computer Science, Theory &
Methods; Engineering, Electrical & Electronic
SC Computer Science; Engineering
GA BBX72
UT WOS:000308577000014
ER
PT S
AU Yan, GH
Chen, SQ
Eidenbenz, S
AF Yan, Guanhua
Chen, Songqing
Eidenbenz, Stephan
BE Lai, XJ
Zhou, JY
Li, H
TI RatBot: Anti-enumeration Peer-to-Peer Botnets
SO INFORMATION SECURITY
SE Lecture Notes in Computer Science
LA English
DT Proceedings Paper
CT 14th Information Security Conference (ISC)
CY OCT 26-29, 2011
CL Xian, PEOPLES R CHINA
SP China Comp Federat, Xidian Univ, Shanghai Jiao Tong Univ
AB As evidenced by the recent botnet turf war between Spy Eye and Zeus, the cyber space has been witnessing an increasing number of battles or wars involving botnets among different groups, organizations, or even countries. One important aspect of a cyber war is accurately estimating the attack capacity of the enemy. Particularly, each party in a botnet war would be interested in knowing how many compromised machines his adversaries possess. Towards this end, a technique often adopted is to infiltrate into an adversary's botnet and enumerate observed hots through active crawling or passive monitoring methods.
In this work, we study potential tactics that a botnet can deploy to protect itself from being enumerated. More specifically, we are interested in how a botnet owner can bluff the botnet size in order to intimidate the adversary, gain media attention, or win a contract. We introduce RatBot, a P2P botnet that is able to defeat existing botnet enumeration methods. The key idea of RatBot is the existence of a fraction of bots that are indistinguishable from their fake identities. RatBot prevents adversaries from inferring its size even after its executables are fully exposed. To study the practical feasibility of RatBot, we implement it, based on KAD, and use large-scale high-fidelity simulation to quantify the estimation errors under diverse settings. The results show that a naive enumeration technique can significantly overestimate the sizes of P2P botnets. We further present a few countermeasures that can potentially defeat RatBot's anti-enumeration scheme.
C1 [Yan, Guanhua; Eidenbenz, Stephan] Los Alamos Natl Lab, Informat Sci CCS 3, Los Alamos, NM 87545 USA.
[Chen, Songqing] George Mason Univ, Dept Comp Sci, Fairfax, VA 22030 USA.
RP Yan, GH (reprint author), Los Alamos Natl Lab, Informat Sci CCS 3, Los Alamos, NM 87545 USA.
FU AFOSR [FA9550-09-1-0071]; NSF [CNS-0746649]
FX Songqing Chen is partially supported by AFOSR grant FA9550-09-1-0071 and
NSF grant CNS-0746649.
NR 25
TC 2
Z9 2
U1 0
U2 0
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
SN 0302-9743
BN 978-3-642-24860-3
J9 LECT NOTES COMPUT SC
PY 2011
VL 7001
BP 135
EP +
PG 3
WC Computer Science, Theory & Methods
SC Computer Science
GA BBF98
UT WOS:000306719400010
ER
PT J
AU Vella-Brodrick, DA
Delbosc, A
AF Vella-Brodrick, Dianne A.
Delbosc, Alexa
BE Currie, G
TI Measuring Well-Being
SO NEW PERSPECTIVES AND METHODS IN TRANSPORT AND SOCIAL EXCLUSION RESEARCH
LA English
DT Article; Book Chapter
ID CONSTRUCT-VALIDITY; COMMUNITY INDEX; NEGATIVE AFFECT; HAPPY PEOPLE;
HAPPINESS; HEALTH; PARTICIPATION; SATISFACTION; PERSONALITY; SCALE
AB Purpose - In this chapter a case will be made for the importance of measuring well-being in transport mobility research. A number of well-being measures and determinants of well-being will be presented in reference to the current project. This chapter will then conclude with some practical recommendations for transport mobility researchers wishing to include well-being measures in their future studies.
Methodology - Measurement methods associated with previous transport mobility and well-being research will be critically examined so that strengths and limitations can be identified. The measurement approach to well-being adopted for the current project will be presented and associated challenges experienced by the research team will then be discussed.
Findings - A review of the extant transport mobility research which includes an assessment of well-being shows that it is not uncommon for unstandardised measures of well-being to be adopted. In addition, exploration of relationships between transport mobility and well-being are often undertaken without any consideration of potential moderating or mediating factors. More work is needed to advance our knowledge of the transport mobility and well-being relationship and the underlying mechanisms driving this relationship. Research also needs to focus on undertaking longitudinal studies which will enable causation to be established.
C1 [Vella-Brodrick, Dianne A.] Monash Univ, Emot & Well Being Res Unit, Sch Psychol & Psychiat, Clayton, Vic 3800, Australia.
[Vella-Brodrick, Dianne A.] APS, College Pk, MD USA.
[Vella-Brodrick, Dianne A.] APS Coll Hlth Psychologists, College Pk, MD USA.
[Vella-Brodrick, Dianne A.] Posit Psychol Network, Melbourne, Vic, Australia.
[Vella-Brodrick, Dianne A.] IPPA, Execut Board, Mt Royal, NJ USA.
[Delbosc, Alexa] Monash Univ, Inst Transport Studies, Clayton, Vic 3800, Australia.
[Delbosc, Alexa] Museum Victoria, Melbourne, Vic, Australia.
[Delbosc, Alexa] Collaborat Australian Res Council Project Invest, Canberra, ACT, Australia.
RP Vella-Brodrick, DA (reprint author), Monash Univ, Emot & Well Being Res Unit, Sch Psychol & Psychiat, Clayton, Vic 3800, Australia.
NR 65
TC 0
Z9 0
U1 0
U2 4
PU EMERALD GROUP PUBLISHING LTD
PI BINGLEY
PA HOWARD HOUSE, WAGON LANE, BINGLEY, W YORKSHIRE BD16 1WA, ENGLAND
BN 978-1-78052-200-5
PY 2011
BP 91
EP 110
PG 20
WC Economics; Transportation
SC Business & Economics; Transportation
GA BAJ71
UT WOS:000304367800007
ER
PT B
AU Nekoogar, F
Dowla, F
AF Nekoogar, Faranak
Dowla, Farid
BA Nekoogar, F
Dowla, F
BF Nekoogar, F
Dowla, F
TI Basics of Radio Frequency Identification (RFID) Systems
SO ULTRA-WIDEBAND RADIO FREQUENCY IDENTIFICATION SYSTEMS
LA English
DT Article; Book Chapter
ID AUTOMATIC VEHICLE IDENTIFICATION
C1 [Nekoogar, Faranak; Dowla, Farid] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
RP Nekoogar, F (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
EM nekoogar1@llnl.gov; dowla1@llnl.gov; nekoogar1@llnl.gov; dowla1@llnl.gov
NR 44
TC 0
Z9 0
U1 0
U2 0
PU SPRINGER
PI NEW YORK
PA 233 SPRING STREET, NEW YORK, NY 10013, UNITED STATES
BN 978-1-4419-9700-5
PY 2011
BP 1
EP 23
DI 10.1007/978-1-4419-9701-2_1
D2 10.1007/978-1-4419-9701-2
PG 23
WC Engineering, Electrical & Electronic; Telecommunications
SC Engineering; Telecommunications
GA BYK76
UT WOS:000299178000001
ER
PT B
AU Nekoogar, F
Dowla, F
AF Nekoogar, Faranak
Dowla, Farid
BA Nekoogar, F
Dowla, F
BF Nekoogar, F
Dowla, F
TI Characteristics and Limitations of Conventional RFIDs
SO ULTRA-WIDEBAND RADIO FREQUENCY IDENTIFICATION SYSTEMS
LA English
DT Article; Book Chapter
C1 [Nekoogar, Faranak; Dowla, Farid] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
RP Nekoogar, F (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
EM nekoogar1@llnl.gov; dowla1@llnl.gov; nekoogar1@llnl.gov; dowla1@llnl.gov
NR 28
TC 1
Z9 1
U1 0
U2 0
PU SPRINGER
PI NEW YORK
PA 233 SPRING STREET, NEW YORK, NY 10013, UNITED STATES
BN 978-1-4419-9700-5
PY 2011
BP 25
EP 49
DI 10.1007/978-1-4419-9701-2_2
D2 10.1007/978-1-4419-9701-2
PG 25
WC Engineering, Electrical & Electronic; Telecommunications
SC Engineering; Telecommunications
GA BYK76
UT WOS:000299178000002
ER
PT B
AU Nekoogar, F
Dowla, F
AF Nekoogar, Faranak
Dowla, Farid
BA Nekoogar, F
Dowla, F
BF Nekoogar, F
Dowla, F
TI Improvements in RFID Physical Layer Using Ultra-wideband Signals
SO ULTRA-WIDEBAND RADIO FREQUENCY IDENTIFICATION SYSTEMS
LA English
DT Article; Book Chapter
ID SYSTEMS
C1 [Nekoogar, Faranak; Dowla, Farid] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
RP Nekoogar, F (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
EM nekoogar1@llnl.gov; dowla1@llnl.gov; nekoogar1@llnl.gov; dowla1@llnl.gov
NR 30
TC 0
Z9 1
U1 0
U2 0
PU SPRINGER
PI NEW YORK
PA 233 SPRING STREET, NEW YORK, NY 10013, UNITED STATES
BN 978-1-4419-9700-5
PY 2011
BP 51
EP 85
DI 10.1007/978-1-4419-9701-2_3
D2 10.1007/978-1-4419-9701-2
PG 35
WC Engineering, Electrical & Electronic; Telecommunications
SC Engineering; Telecommunications
GA BYK76
UT WOS:000299178000003
ER
PT B
AU Nekoogar, F
Dowla, F
AF Nekoogar, Faranak
Dowla, Farid
BA Nekoogar, F
Dowla, F
BF Nekoogar, F
Dowla, F
TI Ultra-Wideband Technology for RF Tags: Concepts, Implementations, and
Regulations
SO ULTRA-WIDEBAND RADIO FREQUENCY IDENTIFICATION SYSTEMS
LA English
DT Article; Book Chapter
ID CMOS PULSE-GENERATOR; TRANSMITTER; SYSTEMS
C1 [Nekoogar, Faranak; Dowla, Farid] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
RP Nekoogar, F (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
EM nekoogar1@llnl.gov; dowla1@llnl.gov; nekoogar1@llnl.gov; dowla1@llnl.gov
NR 33
TC 0
Z9 0
U1 0
U2 0
PU SPRINGER
PI NEW YORK
PA 233 SPRING STREET, NEW YORK, NY 10013, UNITED STATES
BN 978-1-4419-9700-5
PY 2011
BP 87
EP 109
DI 10.1007/978-1-4419-9701-2_4
D2 10.1007/978-1-4419-9701-2
PG 23
WC Engineering, Electrical & Electronic; Telecommunications
SC Engineering; Telecommunications
GA BYK76
UT WOS:000299178000004
ER
PT B
AU Nekoogar, F
Dowla, F
AF Nekoogar, Faranak
Dowla, Farid
BA Nekoogar, F
Dowla, F
BF Nekoogar, F
Dowla, F
TI Antenna Design for Ultra-wideband Passive RFID Systems
SO ULTRA-WIDEBAND RADIO FREQUENCY IDENTIFICATION SYSTEMS
LA English
DT Article; Book Chapter
C1 [Nekoogar, Faranak; Dowla, Farid] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
RP Nekoogar, F (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
EM nekoogar1@llnl.gov; dowla1@llnl.gov; nekoogar1@llnl.gov; dowla1@llnl.gov
NR 45
TC 0
Z9 0
U1 0
U2 0
PU SPRINGER
PI NEW YORK
PA 233 SPRING STREET, NEW YORK, NY 10013, UNITED STATES
BN 978-1-4419-9700-5
PY 2011
BP 111
EP 138
DI 10.1007/978-1-4419-9701-2_5
D2 10.1007/978-1-4419-9701-2
PG 28
WC Engineering, Electrical & Electronic; Telecommunications
SC Engineering; Telecommunications
GA BYK76
UT WOS:000299178000005
ER
PT B
AU Nekoogar, F
Dowla, F
AF Nekoogar, Faranak
Dowla, Farid
BA Nekoogar, F
Dowla, F
BF Nekoogar, F
Dowla, F
TI RF Tags for Special Applications
SO ULTRA-WIDEBAND RADIO FREQUENCY IDENTIFICATION SYSTEMS
LA English
DT Article; Book Chapter
C1 [Nekoogar, Faranak; Dowla, Farid] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
RP Nekoogar, F (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
EM nekoogar1@llnl.gov; dowla1@llnl.gov; nekoogar1@llnl.gov; dowla1@llnl.gov
NR 5
TC 0
Z9 0
U1 0
U2 0
PU SPRINGER
PI NEW YORK
PA 233 SPRING STREET, NEW YORK, NY 10013, UNITED STATES
BN 978-1-4419-9700-5
PY 2011
BP 139
EP 146
DI 10.1007/978-1-4419-9701-2_6
D2 10.1007/978-1-4419-9701-2
PG 8
WC Engineering, Electrical & Electronic; Telecommunications
SC Engineering; Telecommunications
GA BYK76
UT WOS:000299178000006
ER
PT B
AU Larsen, PE
Collart, F
Meyer, F
Gilbert, JA
AF Larsen, Peter E.
Collart, Frank
Meyer, Folker
Gilbert, Jack A.
BE Pellegrini, M
Fred, A
Filipe, J
Gamboa, H
TI PREDICTED RELATIVE METABOLOMIC TURNOVER Predicting Changes in the
Environmental Metabolome from the Metagenome
SO BIOINFORMATICS 2011
LA English
DT Proceedings Paper
CT International Conferene on Bioinformatics Models, Methods and Algorithms
CY JAN 26-29, 2011
CL Rome, ITALY
SP Inst Syst & Technol Informat, Control & Commun, IEEE, Engn Med & Biol Soc, IEEE, Portugal EMBS Chapter, ESEM, BMES
DE Metagenomics; Metatranscriptmics; Marine; Ecology; Metabolomics;
Modeling; Metabolites
ID GENOMES; DATABASE; GENES; DEGRADATION; SEQUENCES; PATHWAYS; BACTERIA
AB Metagenomics, the sequencing and analysis of genomic DNA extracted directly from an environment, can provide insight into taxonomic and functional diversity, but there are few tools for directly comparing metabolomes predicted from metagenomic data sets. We present a new method, Predicted Relative Metabolomic Turnover (PRMT), for comparing the predicted environmental metabolomes encoded in separate metagenomes and identifying those compounds predicted to be differentially metabolized. The PRMT method was validated using three separate sets of ocean metagenomic sequence studies, totaling 15 metagenomic samples, over 4.5 million sequence fragments and over 840 million base pairs. These data sets enable the construction of models representative of the environmental metabolome of the English Channel. Not only did 88% of the predicted metabolic Predicted Metabolic Relative Turnover shows excellent correlation with observed oceanographic parameters, but PRMT derived parameters are shown to generate potentially constructive and testable biological hypotheses that could form the basis for future biological experiments.
C1 [Larsen, Peter E.; Collart, Frank; Meyer, Folker; Gilbert, Jack A.] Argonne Natl Lab, Argonne, IL 60439 USA.
RP Larsen, PE (reprint author), Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM gilbertjack@anl.gov
OI Meyer, Folker/0000-0003-1112-2284; Collart, Frank/0000-0001-6942-4483
NR 29
TC 0
Z9 0
U1 0
U2 3
PU SCITEPRESS
PI SETUBAL
PA AV D MANUELL, 27A 2 ESQ, SETUBAL, 2910-595, PORTUGAL
BN 978-989-8425-36-2
PY 2011
BP 337
EP 345
PG 9
WC Medical Informatics
SC Medical Informatics
GA BBW54
UT WOS:000308455800057
ER
PT B
AU Meyer, F
Kyrpides, N
AF Meyer, Folker
Kyrpides, Nikos
BE Pellegrini, M
Fred, A
Filipe, J
Gamboa, H
TI PROPOSAL FOR OPEN DISCUSSION Informatics Challenges for Next Generation
Sequencing Metagenomics Experiments
SO BIOINFORMATICS 2011
LA English
DT Proceedings Paper
CT International Conferene on Bioinformatics Models, Methods and Algorithms
CY JAN 26-29, 2011
CL Rome, ITALY
SP Inst Syst & Technol Informat, Control & Commun, IEEE, Engn Med & Biol Soc, IEEE, Portugal EMBS Chapter, ESEM, BMES
DE Metagenomics; Next gen Sequencing; Democratization of Sequencing
ID RARE BIOSPHERE; MICROBIAL DIVERSITY; GENOME; RESOURCE; SAMPLES; SEA
AB With DNA sequence data production no longer the bottleneck in microbial studies, a rapidly increasing number of researchers from diverse areas of interest can now use metagenomic tools to study their environment of interest. The large quantities of sequence data becoming available are posing significant challenges to the existing analysis tools and indeed to the community providing analysis portals.
C1 [Meyer, Folker] Argonne Natl Lab, Argonne, IL 60439 USA.
RP Meyer, F (reprint author), Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA.
OI Meyer, Folker/0000-0003-1112-2284; Kyrpides, Nikos/0000-0002-6131-0462
NR 23
TC 0
Z9 0
U1 0
U2 2
PU SCITEPRESS
PI SETUBAL
PA AV D MANUELL, 27A 2 ESQ, SETUBAL, 2910-595, PORTUGAL
BN 978-989-8425-36-2
PY 2011
BP 363
EP 366
PG 4
WC Medical Informatics
SC Medical Informatics
GA BBW54
UT WOS:000308455800060
ER
PT J
AU Patti, GJ
Tautenhahn, R
Fonslow, BR
Cho, Y
Deutschbauer, A
Arkin, A
Northen, T
Siuzdak, G
AF Patti, Gary J.
Tautenhahn, Ralf
Fonslow, Bryan R.
Cho, Yonghoon
Deutschbauer, Adam
Arkin, Adam
Northen, Trent
Siuzdak, Gary
TI Meta-analysis of global metabolomics and proteomics data to link
alterations with phenotype
SO SPECTROSCOPY-BIOMEDICAL APPLICATIONS
LA English
DT Article
DE Metabolomics; meta-analysis; proteomics; untargeted; XCMS
ID BIOCHEMICAL REACTIONS; GENETIC-CONTROL; C-ELEGANS; NEUROSPORA
AB Global metabolomics has emerged as a powerful tool to interrogate cellular biochemistry at the systems level by tracking alterations in the levels of small molecules. One approach to define cellular dynamics with respect to this dysregulation of small molecules has been to consider metabolic flux as a function of time. While flux measurements have proven effective for model organisms, acquiring multiple time points at appropriate temporal intervals for many sample types (e. g., clinical specimens) is challenging. As an alternative, meta-analysis provides another strategy for delineating metabolic cause and effect perturbations. That is, the combination of untargeted metabolomic data from multiple pairwise comparisons enables the association of specific changes in small molecules with unique phenotypic alterations. We recently developed metabolomic software called metaXCMS to automate these types of higher order comparisons. Here we discuss the potential of metaXCMS for analyzing proteomic datasets and highlight the biological value of combining meta-results from both metabolomic and proteomic analyses. The combined meta-analysis has the potential to facilitate efforts in functional genomics and the identification of metabolic disruptions related to disease pathogenesis.
C1 [Tautenhahn, Ralf; Cho, Yonghoon; Siuzdak, Gary] Scripps Res Inst, Ctr Metabol & Mass Spectrometry, La Jolla, CA 92037 USA.
[Patti, Gary J.] Washington Univ, Sch Med, Dept Chem, St Louis, MO USA.
[Patti, Gary J.] Washington Univ, Sch Med, Dept Genet, St Louis, MO 63110 USA.
[Patti, Gary J.] Washington Univ, Sch Med, Dept Med, St Louis, MO 63110 USA.
[Fonslow, Bryan R.] Scripps Res Inst, Dept Physiol Chem, La Jolla, CA 92037 USA.
[Deutschbauer, Adam; Arkin, Adam] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Phys Biosci Div, Berkeley, CA 94720 USA.
[Northen, Trent] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Life Sci, Dept Bioengergy GTL & Struct Biol, Berkeley, CA 94720 USA.
RP Siuzdak, G (reprint author), Scripps Res Inst, Ctr Metabol & Mass Spectrometry, La Jolla, CA 92037 USA.
EM siuzdak@scripps.edu
RI Northen, Trent/K-3139-2012; Arkin, Adam/A-6751-2008;
OI Arkin, Adam/0000-0002-4999-2931; Northen, Trent/0000-0001-8404-3259
FU California Institute of Regenerative Medicine [TR1-01219]; National
Institutes of Health [R24 EY017540-04, P30 MH062261-10, P01
DA026146-02]; NIH/NIA [L30 AG0 038036]; Department of Energy [ENIGMA
DE-AC0205CH11231]
FX This work was supported by the California Institute of Regenerative
Medicine (TR1-01219), the National Institutes of Health (R24
EY017540-04, P30 MH062261-10 and P01 DA026146-02) and NIH/NIA L30 AG0
038036 (G.J.P.). Financial support was also received from the Department
of Energy (Grants ENIGMA DE-AC0205CH11231).
NR 12
TC 0
Z9 0
U1 1
U2 19
PU IOS PRESS
PI AMSTERDAM
PA NIEUWE HEMWEG 6B, 1013 BG AMSTERDAM, NETHERLANDS
SN 0712-4813
J9 SPECTROSC-BIOMED APP
JI Spectrosc.-Biomed. Appl.
PY 2011
VL 26
IS 3
BP 151
EP 154
DI 10.3233/SPE-2011-0534
PG 4
WC Biochemical Research Methods; Spectroscopy
SC Biochemistry & Molecular Biology; Spectroscopy
GA 876LQ
UT WOS:000299109400001
ER
PT J
AU Durinck, S
Ho, C
Wang, NJ
Liao, W
Jakkula, LR
Collisson, EA
Pons, J
Chan, SW
Lam, ET
Chu, C
Park, K
Hong, SW
Hur, JS
Huh, N
Neuhaus, IM
Yu, SS
Grekin, RC
Mauro, TM
Cleaver, JE
Kwok, PY
LeBoit, PE
Getz, G
Cibulskis, K
Aster, JC
Huang, HY
Purdom, E
Li, J
Bolund, L
Arron, ST
Gray, JW
Spellman, PT
Cho, RJ
AF Durinck, Steffen
Ho, Christine
Wang, Nicholas J.
Liao, Wilson
Jakkula, Lakshmi R.
Collisson, Eric A.
Pons, Jennifer
Chan, Sai-Wing
Lam, Ernest T.
Chu, Catherine
Park, Kyunghee
Hong, Sung-woo
Hur, Joe S.
Huh, Nam
Neuhaus, Isaac M.
Yu, Siegrid S.
Grekin, Roy C.
Mauro, Theodora M.
Cleaver, James E.
Kwok, Pui-Yan
LeBoit, Philip E.
Getz, Gad
Cibulskis, Kristian
Aster, Jon C.
Huang, Haiyan
Purdom, Elizabeth
Li, Jian
Bolund, Lars
Arron, Sarah T.
Gray, Joe W.
Spellman, Paul T.
Cho, Raymond J.
TI Timing chromosomal abnormalities using mutation data
SO GENOME BIOLOGY
LA English
DT Meeting Abstract
C1 [Durinck, Steffen; Wang, Nicholas J.; Jakkula, Lakshmi R.; Collisson, Eric A.; Gray, Joe W.; Spellman, Paul T.] Lawrence Berkeley Natl Lab, Div Life Sci, Berkeley, CA USA.
[Ho, Christine; Huang, Haiyan; Purdom, Elizabeth] Univ Calif Berkeley, Dept Stat, Berkeley, CA 94720 USA.
[Liao, Wilson; Pons, Jennifer; Chan, Sai-Wing; Lam, Ernest T.; Chu, Catherine; Neuhaus, Isaac M.; Yu, Siegrid S.; Grekin, Roy C.; Mauro, Theodora M.; Cleaver, James E.; Kwok, Pui-Yan; Arron, Sarah T.; Cho, Raymond J.] Univ Calif San Francisco, Dept Dermatol, San Francisco, CA 94143 USA.
[Park, Kyunghee; Hong, Sung-woo; Huh, Nam] Samsung Adv Inst Technol, Emerging Technol Res Ctr, Seoul, South Korea.
[Hur, Joe S.] Samsung Elect Headquarters, Seoul, South Korea.
[LeBoit, Philip E.] San Francisco Dermatopathol Serv, San Francisco, CA USA.
[Getz, Gad; Cibulskis, Kristian] Fli & Edythe L Broad Inst Harvard & MIT, Cambridge, MA USA.
[Aster, Jon C.] Brigham & Womens Hosp, Dept Pathol, Boston, MA 02115 USA.
[Li, Jian; Bolund, Lars] Beijing Genom Inst, Shenzhen, Peoples R China.
[Li, Jian; Bolund, Lars] Aarhus Univ, Inst Human Genet, DK-8000 Aarhus, Denmark.
[Gray, Joe W.] Oregon Hlth & Sci Univ, Dept Biomed Engn, Portland, OR 97201 USA.
NR 1
TC 0
Z9 0
U1 0
U2 4
PU BIOMED CENTRAL LTD
PI LONDON
PA 236 GRAYS INN RD, FLOOR 6, LONDON WC1X 8HL, ENGLAND
SN 1474-7596
J9 GENOME BIOL
JI Genome Biol.
PY 2011
VL 12
SU 1
MA P39
BP 22
EP 22
PG 1
WC Biotechnology & Applied Microbiology; Genetics & Heredity
SC Biotechnology & Applied Microbiology; Genetics & Heredity
GA 002QH
UT WOS:000308546700051
ER
PT J
AU Nakajo, K
Ulbrich, MH
Kubo, Y
Isacoff, EY
AF Nakajo, Koichi
Ulbrich, Maximilian H.
Kubo, Yoshihiro
Isacoff, Ehud Y.
TI P2-u09 Density-dependent changes of the stoichiometry of KCNQ1-KCNE1 ion
channel complex revealed by direct subunit counting using single
molecule imaging
SO NEUROSCIENCE RESEARCH
LA English
DT Meeting Abstract
C1 [Nakajo, Koichi; Kubo, Yoshihiro] NIPS, Div Biophys & Neurobiol, Okazaki, Aichi, Japan.
[Nakajo, Koichi; Kubo, Yoshihiro] SOKENDAI, Dept Physiol Sci, Hayama, Japan.
[Nakajo, Koichi; Ulbrich, Maximilian H.; Isacoff, Ehud Y.] Univ Calif Berkeley, Dept Mol & Cell Biol, Berkeley, CA USA.
[Isacoff, Ehud Y.] LBNL, Phys Biosci Div, Berkeley, CA USA.
[Ulbrich, Maximilian H.] Univ Freiburg, BIOSS, D-79106 Freiburg, Germany.
NR 0
TC 0
Z9 0
U1 0
U2 1
PU ELSEVIER IRELAND LTD
PI CLARE
PA ELSEVIER HOUSE, BROOKVALE PLAZA, EAST PARK SHANNON, CO, CLARE, 00000,
IRELAND
SN 0168-0102
J9 NEUROSCI RES
JI Neurosci. Res.
PY 2011
VL 71
SU S
BP E205
EP E205
DI 10.1016/j.neures.2011.07.886
PG 1
WC Neurosciences
SC Neurosciences & Neurology
GA 998DT
UT WOS:000308218101131
ER
PT J
AU Griffiths, JM
King, DW
AF Griffiths, Jose-Marie
King, Donald W.
BE Baker, D
Evans, W
TI The future of librarians in the workforce: a US perspective
SO LIBRARIES AND SOCIETY: ROLE, RESPONSIBILITY AND FUTURE IN AN AGE OF
CHANGE
SE Chandos Information Professional Series
LA English
DT Article; Book Chapter
C1 [Griffiths, Jose-Marie; King, Donald W.] Bryant Univ, Smithfield, RI 02917 USA.
[Griffiths, Jose-Marie] Natl Sci Board, Arlington, VA USA.
[Griffiths, Jose-Marie] Presidents Informat Technol Advisory Comm, Arlington, VA USA.
[Griffiths, Jose-Marie] US Natl Commiss Lib & Informat Sci, Washington, DC USA.
[Griffiths, Jose-Marie] Natl Acad Sci, Washington, DC USA.
[Griffiths, Jose-Marie] NASA, Washington, DC USA.
[Griffiths, Jose-Marie] US DOE, Washington, DC 20560 USA.
[Griffiths, Jose-Marie] US Dept Commerce, Washington, DC 20230 USA.
[Griffiths, Jose-Marie] US Geol Survey, Reston, VA USA.
[Griffiths, Jose-Marie] USN, Washington, DC USA.
[Griffiths, Jose-Marie] Amer Assoc Advancement Sci, Washington, DC USA.
[King, Donald W.] Westat Corp, Gaithersburg, MD USA.
[King, Donald W.] Amer Stat Assoc, Alexandria, VA 22314 USA.
RP Griffiths, JM (reprint author), Bryant Univ, Smithfield, RI 02917 USA.
NR 28
TC 0
Z9 0
U1 0
U2 1
PU CHANDOS PUBL
PI SAWSTON
PA 80 HIGH ST, SAWSTON, CAMBRIDGE CB22 3HJ, ENGLAND
BN 978-1-84334-131-4
J9 CHANDOS INF PROF SER
PY 2011
BP 279
EP 302
D2 10.1533/9781780632636
PG 24
WC Information Science & Library Science
SC Information Science & Library Science
GA BYR59
UT WOS:000299894500021
ER
PT S
AU Suh, C
Kim, K
Berry, JJ
Lee, J
Jones, WB
AF Suh, Changwon
Kim, Kwiseon
Berry, Joseph J.
Lee, Jinsuk
Jones, Wesley B.
BE Berry, JJ
Fortunato, E
Medvedeva, JE
Shigesato, Y
TI Data Mining-Aided Crystal Engineering for the Design of Transparent
Conducting Oxides
SO TRANSPARENT CONDUCTING OXIDES AND APPLICATIONS
SE Materials Research Society Symposium Proceedings
LA English
DT Proceedings Paper
CT Symposium MM on Transparent Conducting Oxides and Applications/Fall
Meeting of the Materials-Research-Society (MRS)
CY NOV 29-DEC 03, 2010
CL Boston, MA
SP Mat Res Soc (MRS)
ID P-TYPE CONDUCTIVITY; M-M DISTANCES; DELAFOSSITE STRUCTURE; THIN-FILMS;
THERMOELECTRIC PROPERTIES; ELECTRICAL-PROPERTIES; TRANSPORT-PROPERTIES;
ELECTRONIC-STRUCTURE; SOLID-SOLUTION; VISUALIZATION
AB The purpose of this paper is to accelerate the pace of material discovery processes by systematically visualizing the huge search space that conventionally needs to be explored. To this end, we demonstrate not only the use of empirical-or crystal chemistry-based physical intuition for decision-making, but also to utilize knowledge-based data mining methodologies in the context of finding p-type delafossite transparent conducting oxides (TCOs). We report on examples using high-dimensional visualizations such as radial visualization combined with machine learning algorithms such as k-nearest neighbor algorithm (k-NN) to better define and visualize the search space (i.e. structure maps) of functional materials design. The vital role of search space generated from these approaches is discussed in the context of crystal chemistry of delafossite crystal structure.
C1 [Suh, Changwon; Kim, Kwiseon; Berry, Joseph J.; Lee, Jinsuk; Jones, Wesley B.] Natl Renewable Energy Lab, Golden, CO 80401 USA.
RP Suh, C (reprint author), Natl Renewable Energy Lab, 1617 Cole Blvd, Golden, CO 80401 USA.
RI Suh, Changwon/N-1297-2014
NR 44
TC 0
Z9 0
U1 0
U2 3
PU MATERIALS RESEARCH SOC
PI WARRENDALE
PA 506 KEYSTONE DRIVE, WARRENDALE, PA 15088-7563 USA
SN 0272-9172
BN 978-1-60511-292-3
J9 MATER RES SOC SYMP P
PY 2011
VL 1315
BP 7
EP 13
DI 10.1557/opl.2011.1387
PG 7
WC Materials Science, Multidisciplinary
SC Materials Science
GA BBQ88
UT WOS:000307928500002
ER
PT S
AU Mendelsberg, RJ
Lim, SHN
Milliron, DJ
Anders, A
AF Mendelsberg, Rueben J.
Lim, Sunnie H. N.
Milliron, Delia J.
Anders, Andre
BE Berry, JJ
Fortunato, E
Medvedeva, JE
Shigesato, Y
TI High Rate Deposition of High Quality ZnO:Al by Filtered Cathodic Arc
SO TRANSPARENT CONDUCTING OXIDES AND APPLICATIONS
SE Materials Research Society Symposium Proceedings
LA English
DT Proceedings Paper
CT Symposium MM on Transparent Conducting Oxides and Applications/Fall
Meeting of the Materials-Research-Society (MRS)
CY NOV 29-DEC 03, 2010
CL Boston, MA
SP Mat Res Soc (MRS)
ID PULSED-LASER DEPOSITION; VACUUM-ARC; THIN-FILMS
AB High quality ZnO:Al (AZO) thin films were prepared on glass substrates by direct current filtered cathodic arc deposition. Substrate temperature was varied from room temperature to 425 degrees C, and samples were grown with and without the assistance of low power oxygen plasma (75W). For each growth condition, at least 3 samples were grown to give a statistical look at the effect of the growth environment on the film properties and to explore the reproducibility of the technique. Growth rate was in the 100-400 nm/min range but was apparently random and could not be easily traced to the growth conditions explored. For optimized growth conditions, 300-600 nm AZO films had resistivities of 3-6 x 10(-4) Omega cm, carrier concentrations in the range of 2-4 x 10(20) cm(3), Hall mobility as high as 55 cm(2)/Vs, and optical transmittance greater than 90%. These films are also highly oriented with the c-axis perpendicular to the substrate and a surface roughness of 2-4 nm.
C1 [Mendelsberg, Rueben J.; Lim, Sunnie H. N.; Anders, Andre] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Plasma Applicat Grp, Berkeley, CA 94720 USA.
RP Mendelsberg, RJ (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Plasma Applicat Grp, Berkeley, CA 94720 USA.
RI Anders, Andre/B-8580-2009
OI Anders, Andre/0000-0002-5313-6505
NR 10
TC 0
Z9 0
U1 1
U2 1
PU MATERIALS RESEARCH SOC
PI WARRENDALE
PA 506 KEYSTONE DRIVE, WARRENDALE, PA 15088-7563 USA
SN 0272-9172
BN 978-1-60511-292-3
J9 MATER RES SOC SYMP P
PY 2011
VL 1315
BP 45
EP 51
DI 10.1557/opl.2011.1285
PG 7
WC Materials Science, Multidisciplinary
SC Materials Science
GA BBQ88
UT WOS:000307928500008
ER
PT J
AU Wang, SF
Lu, LC
Wang, C
Gao, CY
Wang, XS
AF Wang, Shanfeng
Lu, Lichun
Wang, Chun
Gao, Changyou
Wang, Xiaosong
TI Polymeric Biomaterials for Tissue Engineering Applications 2011
SO INTERNATIONAL JOURNAL OF POLYMER SCIENCE
LA English
DT Editorial Material
C1 [Wang, Shanfeng] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA.
[Wang, Shanfeng] Oak Ridge Natl Lab, Biosci Div, Oak Ridge, TN 37831 USA.
[Lu, Lichun] Mayo Clin, Coll Med, Dept Biomed Engn, Rochester, MN 55905 USA.
[Lu, Lichun] Mayo Clin, Coll Med, Dept Orthoped Surg, Rochester, MN 55905 USA.
[Wang, Chun] Univ Minnesota, Dept Biomed Engn, Minneapolis, MN 55455 USA.
[Gao, Changyou] Zhejiang Univ, Dept Polymer Sci & Engn, Hangzhou 310027, Zhejiang, Peoples R China.
[Wang, Xiaosong] Univ Waterloo, Waterloo Inst Nanotechnol, Dept Chem, Waterloo, ON N2L 3G1, Canada.
RP Wang, SF (reprint author), Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA.
EM swang16@utk.edu
NR 0
TC 4
Z9 4
U1 2
U2 15
PU HINDAWI PUBLISHING CORPORATION
PI NEW YORK
PA 410 PARK AVENUE, 15TH FLOOR, #287 PMB, NEW YORK, NY 10022 USA
SN 1687-9422
J9 INT J POLYM SCI
JI Int. J. Polym. Sci.
PY 2011
AR 184623
DI 10.1155/2011/184623
PG 2
WC Polymer Science
SC Polymer Science
GA 990LW
UT WOS:000307633400004
ER
PT S
AU McLerran, L
AF McLerran, Larry
BE Praszalowicz, M
Bizon, P
Broniowski, W
Kutschera, M
Slominski, W
TI FAQS ABOUT QUARKYONIC MATTER
SO INTERNATIONAL MEETING: EXCITED QCD
SE Acta Physica Polonica B Proceedings Supplement
LA English
DT Proceedings Paper
CT International Meeting on Excited QCD
CY FEB 20-25, 2011
CL Ecole Phys Houches, Les Houches, FRANCE
HO Ecole Phys Houches
AB This paper attempts to answer some frequently asked questions (FAQS) about Quarkyonic Matter.
C1 [McLerran, Larry] Brookhaven Natl Lab, Upton, NY 11973 USA.
RP McLerran, L (reprint author), Brookhaven Natl Lab, POB 5000, Upton, NY 11973 USA.
EM mclerran@mac.com
NR 6
TC 0
Z9 0
U1 0
U2 0
PU JAGIELLONIAN UNIV
PI CRACOW
PA GOLEBIA 24, 31-007 CRACOW, POLAND
SN 1899-2358
J9 ACTA PHYS POL B PR S
PY 2011
VL 4
IS 4
BP 537
EP 542
DI 10.5506/APhysPolBSupp.4.537
PG 6
WC Physics, Fluids & Plasmas; Physics, Nuclear
SC Physics
GA BBM85
UT WOS:000307421300001
ER
PT J
AU Nielsen, M
AF Nielsen, Michael
BE Masum, H
Tovey, M
TI The Measurement and Mismeasurement of Science
SO REPUTATION SOCIETY: HOW ONLINE OPINIONS ARE RESHAPING THE OFFLINE WORLD
SE Information Society Series
LA English
DT Article; Book Chapter
AB The public has a natural desire to maximize its return on investment for science funding, which has made reputation measures for scientific research increasingly influential. Michael Nielsen warns of the dangers of overreliance on any single metric of success, suggesting instead a more diverse approach to deciding which risky endeavors to support collectively-a perspective with implications beyond science.
C1 [Nielsen, Michael] Univ New Mexico, Albuquerque, NM 87131 USA.
[Nielsen, Michael] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Nielsen, Michael] CALTECH, Pasadena, CA 91125 USA.
[Nielsen, Michael] Univ Queensland, Brisbane, Qld 4072, Australia.
RP Nielsen, M (reprint author), Univ New Mexico, Albuquerque, NM 87131 USA.
NR 13
TC 1
Z9 1
U1 0
U2 1
PU M I T PRESS
PI CAMBRIDGE
PA FIVE CAMBRIDGE CENTER, CAMBRIDGE, MA 02142 USA
BN 978-0-262-29937-4
J9 INFORM SOC SER
PY 2011
BP 111
EP 118
PG 8
WC Information Science & Library Science; Sociology
SC Information Science & Library Science; Sociology
GA BAS58
UT WOS:000305404900012
ER
PT S
AU Wojciechowski, J
Balcerzak, M
Bojanowski, C
Kwasniewski, L
Gizejowski, M
AF Wojciechowski, Jacek
Balcerzak, Marcin
Bojanowski, Cezary
Kwasniewski, Leslaw
Gizejowski, Marian
BE Cadoni, E
DiPrisco, M
TI Example Validation of Numerical Modeling of Blast Loading
SO PERFORMANCE, PROTECTION AND STRENGTHENING OF STRUCTURES UNDER EXTREME
LOADING
SE Applied Mechanics and Materials
LA English
DT Proceedings Paper
CT 3rd International Workshop on Performance, Protection and Strengthening
of Structures Under Extreme Loading
CY AUG 30-SEP 01, 2011
CL Lugano, SWITZERLAND
DE Arbitrary Lagrangian Eulerian; blast; explosion; LS-DYNA; validation
AB This paper reports a follow-up feasibility study on different approaches for numerical modeling of blast loads, implemented recently in a few commercial programs based on finite element method and explicit time integration. Four approaches have been considered including: explicit blast wave representation using fluid-structure interaction (FSI) with 2D and 3D multimaterial arbitrary Lagrangian-Eulerian (ALE) formulations, direct application of empirical explosive blast loads on structures, and the most recent, combined method, in which direct empirical loading is applied to a reduced ALE domain. Each of these approaches has its own strengths and weaknesses, although the last one seems to be the most universal. Based on the published experimental data, a benchmark problem was selected, which considers a pressure loading exerted by explosion of near field hemispherical charges on a rigid steel plate. The comparison is done in terms of pressure peaks (overpressure) and time histories of reflected pressure, and reflected specific impulses.
C1 [Wojciechowski, Jacek; Balcerzak, Marcin; Kwasniewski, Leslaw; Gizejowski, Marian] Warsaw Univ Technol, Fac Civil Engn, Warsaw, Poland.
[Bojanowski, Cezary] Argonne Natl Lab, Transportat Res & Anal Comp Ctr, Argonne, IL USA.
RP Wojciechowski, J (reprint author), Warsaw Univ Technol, Fac Civil Engn, Warsaw, Poland.
EM j.wojciechowski@il.pw.edu.pl; marcin.balcerzak@wp.pl;
cbojanowski@anl.gov; l.kwasniewski@il.pw.edu.pl;
m.gizejowski@il.pw.edu.pl
FU Polish Ministry of Science and Higher Education ''Analysis of the
stability and integrity of the multi-storey buildings subjected to
exceptional actions'' [457/N-COST/2009/0]
FX Part of the study reported in this paper was supported by a grant from
the Polish Ministry of Science and Higher Education Analysis of the
stability and integrity of the multi-storey buildings subjected to
exceptional actions, grant number 457/N-COST/2009/0. Part of the
reported LS-DYNA simulations has been conducted on The Transportation
Research and Analysis Computing Center (TRACC) High Performance Compute
Cluster at Argonne National Laboratory.
NR 7
TC 0
Z9 0
U1 1
U2 4
PU TRANS TECH PUBLICATIONS LTD
PI DURNTEN-ZURICH
PA KREUZSTRASSE 10, 8635 DURNTEN-ZURICH, SWITZERLAND
SN 1660-9336
BN 978-3-03785-217-0
J9 APPL MECH MATER
PY 2011
VL 82
BP 410
EP +
DI 10.4028/www.scientific.net/AMM.82.410
PG 2
WC Engineering, Mechanical; Materials Science, Multidisciplinary; Mechanics
SC Engineering; Materials Science; Mechanics
GA BBB89
UT WOS:000306394700065
ER
PT S
AU Ciraci, S
Sozer, H
Aksit, M
AF Ciraci, Selim
Sozer, Hasan
Aksit, Mehmet
BE Crnkovic, I
Gruhn, V
Book, M
TI Guiding Architects in Selecting Architectural Evolution Alternatives
SO SOFTWARE ARCHITECTURE
SE Lecture Notes in Computer Science
LA English
DT Proceedings Paper
CT 5th European Conference on Software Architecture (ECSA 2011)
CY SEP 13-16, 2011
CL Essen, GERMANY
SP Univ Duisburg Essen, PALUNO, Ruhr Inst Software Technol, Adesso, e on
ID SYSTEMS
AB Although there exist methods and tools to support architecture evolution, the derivation and evaluation of alternative evolution paths are realized manually. In this paper, we introduce an approach, where architecture specification is converted to a graph representation. Based on this representation, we automatically generate possible evolution paths, evaluate quality attributes for different architectural configurations, and optimize the selection of a particular path accordingly. We illustrate our approach by modeling the software architecture evolution of a crisis management system.
C1 [Ciraci, Selim] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Sozer, Hasan] Ozyegin Univ, Istanbul, Turkey.
[Aksit, Mehmet] Univ Twente, Enschede, Netherlands.
RP Ciraci, S (reprint author), Pacific NW Natl Lab, Richland, WA 99352 USA.
EM selim.ciraci@pnl.gov; hasan.sozer@ozyegin.edu.tr; m.aksit@ewi.utwente.nl
NR 11
TC 3
Z9 3
U1 0
U2 0
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
SN 0302-9743
BN 978-3-642-23797-3
J9 LECT NOTES COMPUT SC
PY 2011
VL 6903
BP 252
EP +
PG 3
WC Computer Science, Software Engineering; Computer Science, Theory &
Methods
SC Computer Science
GA BBB92
UT WOS:000306397800028
ER
PT S
AU Craig, WW
An, HJ
Blaedel, KL
Christensen, FE
Decker, TA
Fabricant, A
Gum, J
Hailey, CJ
Hale, L
Jensen, CB
Koglin, JE
Mori, K
Nynka, M
Pivovaroff, MJ
Sharpe, MV
Stern, M
Tajiri, G
Zhang, WW
AF Craig, William W.
An, HongJun
Blaedel, Kenneth L.
Christensen, Finn E.
Decker, Todd A.
Fabricant, Anne
Gum, Jeff
Hailey, Charles J.
Hale, Layton
Jensen, Carsten B.
Koglin, Jason E.
Mori, Kaya
Nynka, Melanie
Pivovaroff, Michael J.
Sharpe, Marton V.
Stern, Marcela
Tajiri, Gordon
Zhang, William W.
BE ODell, SL
Pareschi, G
TI Fabrication of the NuSTAR Flight Optics
SO OPTICS FOR EUV, X-RAY, AND GAMMA-RAY ASTRONOMY V
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Optics for EUV, X-Ray, and Gamma-Ray Astronomy V/SPIE
Optics + Photonics International Symposium on Optical Engineering +
Applications
CY AUG 23-25, 2011
CL San Diego, CA
SP SPIE
DE Hard X-ray telescope; X-ray optics; thermally-slumped glass; NuSTAR
ID X-RAY TELESCOPE; HEFT
AB We describe the fabrication of the two NuSTAR flight optics modules. The NuSTAR optics modules are glass-graphite-epoxy composite structures to be employed for the first time in space-based X-ray optics by NuSTAR, a NASA Small Explorer schedule for launch in February 2012. We discuss the optics manufacturing process, the qualification and environmental testing performed, and briefly discuss the results of X-ray performance testing of the two modules. The integration and alignment of the completed flight optics modules into the NuSTAR instrument is described as are the optics module thermal shields.
C1 [Craig, William W.; Pivovaroff, Michael J.] Lawrence Livermore Natl Lab, Livermore, CA USA.
RP Craig, WW (reprint author), Lawrence Livermore Natl Lab, Livermore, CA USA.
EM craig1@llnl.gov
RI Pivovaroff, Michael/M-7998-2014
OI Pivovaroff, Michael/0000-0001-6780-6816
NR 14
TC 17
Z9 17
U1 2
U2 3
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8757-5
J9 PROC SPIE
PY 2011
VL 8147
AR 81470H
DI 10.1117/12.895278
PG 14
WC Astronomy & Astrophysics; Optics
SC Astronomy & Astrophysics; Optics
GA BBA80
UT WOS:000306321500016
ER
PT S
AU Kilaru, K
Merthe, DJ
Ali, Z
Gubarev, MV
Kester, T
Benson, CM
McKinney, WR
Takacs, PZ
Yashchuk, VV
AF Kilaru, Kiranmayee
Merthe, Daniel J.
Ali, Zulfiqar
Gubarev, Mikhail V.
Kester, Thomas
Benson, Carl M.
McKinney, Wayne R.
Takacs, Peter Z.
Yashchuk, Valeriy V.
BE ODell, SL
Pareschi, G
TI Development of a multi-beam long trace profiler
SO OPTICS FOR EUV, X-RAY, AND GAMMA-RAY ASTRONOMY V
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Optics for EUV, X-Ray, and Gamma-Ray Astronomy V/SPIE
Optics + Photonics International Symposium on Optical Engineering +
Applications
CY AUG 23-25, 2011
CL San Diego, CA
SP SPIE
DE Long Trace Profiler; optical metrology; x-ray optics metrology;
multi-beam profiler
ID MIRRORS
AB In order to fulfill the angular resolution requirements and make the performance goals for future NASA missions feasible, it is crucial to develop instruments capable of fast and precise figure metrology of x-ray optical elements for further correction of the surface errors. The Long Trace Profilometer (LTP) is an instrument widely used for measuring the surface figure of grazing incidence X-ray mirrors. In the case of replicated optics designed for x-ray astronomy applications, such as mirrors and the corresponding mandrels have a cylindrical shape and their tangential profile is parabolic or hyperbolic. Modern LTPs have sub-micro radian accuracy, but the measuring speed is very low, because the profilometer measures surface figure point by point using a single laser beam. The measurement rate can be significantly improved by replacing the single optical beam with multiple beams. The goal of this study is to demonstrate the viability of multi-beam metrology as a way of significantly improving the quality and affordability of replicated x-ray optics. The multi-beam LTP would allow one- and two-dimensional scanning with sub-micro radian resolution and a measurement rate of about ten times faster compared to the current LTP. The design details of the instrument's optical layout and the status of optical tests will be presented.
C1 [Kilaru, Kiranmayee; Gubarev, Mikhail V.; Kester, Thomas; Benson, Carl M.] NASA, Marshall Space Flight Ctr, Huntsville, AL 35812 USA.
[Merthe, Daniel J.; Ali, Zulfiqar; McKinney, Wayne R.; Yashchuk, Valeriy V.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Takacs, Peter Z.] Brookhaven Natl Lab, Upton, NY 11973 USA.
RP Kilaru, K (reprint author), NASA, Marshall Space Flight Ctr, Huntsville, AL 35812 USA.
EM kiranmayee.kilaru-1@nasa.gov
RI McKinney, Wayne/F-2027-2014
OI McKinney, Wayne/0000-0003-2586-3139
FU Brookhaven Science Associates; LLC [DE-AC02-98CH10886]; U.S. Department
of Energy [DE-AC02-05CH11231]; Lawrence Berkeley National Laboratory
FX We would like to acknowledge the partial funding available for this work
from MSFCs technology investment program.Also, our acknowledgements to
Lawrence Berkeley National Laboratory for providing the LTP control
software code in order to speed up the development process. This
manuscript has been authored, in part, by Brookhaven Science Associates,
LLC under Contract No. DE-AC02-98CH10886 with the U.S. Department of
Energy. The Advanced Light Source is supported by the Director, Office
of Science, Office of Basic Energy Sciences, Material Science Division,
of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231 at
Lawrence Berkeley National Laboratory.One author, Zulfiqar Ali, wishes
to thank the HEC, Pakistan for providing Post-doctoral scholarship.
NR 12
TC 4
Z9 4
U1 1
U2 1
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8757-5
J9 PROC SPIE
PY 2011
VL 8147
AR 814719
DI 10.1117/12.895532
PG 8
WC Astronomy & Astrophysics; Optics
SC Astronomy & Astrophysics; Optics
GA BBA80
UT WOS:000306321500043
ER
PT S
AU Dosanjh, S
Barrett, R
Heroux, M
Rodrigues, A
AF Dosanjh, Sudip
Barrett, Richard
Heroux, Mike
Rodrigues, Arun
BE Cotronis, Y
Danalis, A
Nikolopoulos, DS
Dongarra, J
TI Achieving Exascale Computing through Hardware/Software Co-design
SO RECENT ADVANCES IN THE MESSAGE PASSING INTERFACE
SE Lecture Notes in Computer Science
LA English
DT Proceedings Paper
CT 18th European MPI Users Group Meeting (EuroMPI 2011)
CY SEP 18-21, 2011
CL Santorini, GREECE
SP Microsoft, ParTec, Univ Tennessee, Innovat Comp Lab, Mellanox, Univ Athens
C1 [Dosanjh, Sudip; Barrett, Richard; Heroux, Mike; Rodrigues, Arun] Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Dosanjh, S (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
EM Sudip@sandia.gov
RI Dongarra, Jack/E-3987-2014;
OI Heroux, Michael/0000-0002-5893-0273
NR 7
TC 1
Z9 1
U1 0
U2 1
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
SN 0302-9743
BN 978-3-642-24448-3
J9 LECT NOTES COMPUT SC
PY 2011
VL 6960
BP 5
EP 7
PG 3
WC Computer Science, Theory & Methods
SC Computer Science
GA BBH09
UT WOS:000306816800002
ER
PT S
AU Moody, A
Ahn, DH
de Supinski, BR
AF Moody, Adam
Ahn, Dong H.
de Supinski, Bronis R.
BE Cotronis, Y
Danalis, A
Nikolopoulos, DS
Dongarra, J
TI Exascale Algorithms for Generalized MPI_Comm_split
SO RECENT ADVANCES IN THE MESSAGE PASSING INTERFACE
SE Lecture Notes in Computer Science
LA English
DT Proceedings Paper
CT 18th European MPI Users Group Meeting (EuroMPI 2011)
CY SEP 18-21, 2011
CL Santorini, GREECE
SP Microsoft, ParTec, Univ Tennessee, Innovat Comp Lab, Mellanox, Univ Athens
DE MPI; MPI_Comm_split; Sorting algorithms; Hashing algorithms; Distributed
group representation
AB In the quest to build exascale supercomputers, designers are increasing the number of hierarchical levels that exist among system components. Software developed for these systems must account for the various hierarchies to achieve maximum efficiency. The first step in this work is to identify groups of processes that share common resources. We develop, analyze, and test several algorithms that can split millions of processes into groups based on arbitrary, user-defined data. We find that bitonic sort and our new hash-based algorithm best suit the task.
C1 [Moody, Adam; Ahn, Dong H.; de Supinski, Bronis R.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
RP Moody, A (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
EM moody20@llnl.gov; ahn1@llnl.gov; bronis@llnl.gov
RI Dongarra, Jack/E-3987-2014
NR 14
TC 1
Z9 1
U1 0
U2 2
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
SN 0302-9743
BN 978-3-642-24448-3
J9 LECT NOTES COMPUT SC
PY 2011
VL 6960
BP 9
EP 18
PG 10
WC Computer Science, Theory & Methods
SC Computer Science
GA BBH09
UT WOS:000306816800004
ER
PT S
AU Rashti, MJ
Green, J
Balaji, P
Afsahi, A
Gropp, W
AF Rashti, Mohammad Javad
Green, Jonathan
Balaji, Pavan
Afsahi, Ahmad
Gropp, William
BE Cotronis, Y
Danalis, A
Nikolopoulos, DS
Dongarra, J
TI Multi-core and Network Aware MPI Topology Functions
SO RECENT ADVANCES IN THE MESSAGE PASSING INTERFACE
SE Lecture Notes in Computer Science
LA English
DT Proceedings Paper
CT 18th European MPI Users Group Meeting (EuroMPI 2011)
CY SEP 18-21, 2011
CL Santorini, GREECE
SP Microsoft, ParTec, Univ Tennessee, Innovat Comp Lab, Mellanox Technol, Univ Athens
DE MPI; virtual topology; physical topology; multi-core; network
AB MPI standard offers a set of topology-aware interfaces that can be used to construct graph and Cartesian topologies for MPI applications. These interfaces have been mostly used for topology construction and not for performance improvement. To optimize the performance, in this paper we use graph embedding and node/network architecture discovery modules to match the communication topology of the applications to the physical topology of multi-core clusters with multi-level networks. Micro-benchmark results show considerable improvement in communication performance when using weighted and network-aware mapping. We also show that the implementation can improve communication and execution time of the applications.
C1 [Rashti, Mohammad Javad; Green, Jonathan; Afsahi, Ahmad] Queens Univ, Kingston, ON, Canada.
[Balaji, Pavan] Argonne Natl Lab, Argonne, IL USA.
[Gropp, William] Univ Illinois, Argonne, IL USA.
RP Rashti, MJ (reprint author), Queens Univ, Kingston, ON, Canada.
RI Dongarra, Jack/E-3987-2014;
OI Gropp, William/0000-0003-2905-3029
FU Natural Sciences and Engineering Research Council of Canada; Canada
Foundation for Innovation; Ontario innovation Trust; U.S. Department of
Energy; National Science Foundation
FX This work is supported in part by Natural Sciences and Engineering
Research Council of Canada, Canada Foundation for Innovation, Ontario
innovation Trust, U.S. Department of Energy and National Science
Foundation. We thank Mellanox Technologies and HPC Advisory Council for
the resources.
NR 12
TC 7
Z9 7
U1 0
U2 0
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
SN 0302-9743
BN 978-3-642-24448-3
J9 LECT NOTES COMPUT SC
PY 2011
VL 6960
BP 50
EP +
PG 3
WC Computer Science, Theory & Methods
SC Computer Science
GA BBH09
UT WOS:000306816800008
ER
PT S
AU Barrett, BW
Brightwell, R
Hemmert, KS
Wheeler, KB
Underwood, KD
AF Barrett, Brian W.
Brightwell, Ron
Hemmert, K. Scott
Wheeler, Kyle B.
Underwood, Keith D.
BE Cotronis, Y
Danalis, A
Nikolopoulos, DS
Dongarra, J
TI Using Triggered Operations to Offload Rendezvous Messages
SO RECENT ADVANCES IN THE MESSAGE PASSING INTERFACE
SE Lecture Notes in Computer Science
LA English
DT Proceedings Paper
CT 18th European MPI Users Group Meeting (EuroMPI 2011)
CY SEP 18-21, 2011
CL Santorini, GREECE
SP Microsoft, ParTec, Univ Tennessee, Innovat Comp Lab, Mellanox Technol, Univ Athens
ID HIGH-PERFORMANCE; MPI; IMPLEMENTATION; PROTOCOL; DESIGN
AB Historically, MPI implementations have had to choose between eager messaging protocols that require buffering and rendezvous protocols that sacrifice overlap and strong independent progress in some scenarios. The typical choice is to use an eager protocol for short messages and switch to a rendezvous protocol for long messages. If overlap and progress are desired, some implementations offer the option of using a thread. We propose an approach that leverages triggered operations to implement a long message rendezvous protocol that provides strong progress guarantees. The results indicate that a triggered operation based rendezvous can achieve better overlap than a traditional rendezvous implementation and less wasted bandwidth than an eager long protocol.
C1 [Barrett, Brian W.; Brightwell, Ron; Hemmert, K. Scott; Wheeler, Kyle B.] Sandia Natl Labs, POB 5800,MS-1319, Albuquerque, NM 87185 USA.
[Underwood, Keith D.] Intel Corp, Hillsboro, OR 95051 USA.
RP Barrett, BW (reprint author), Sandia Natl Labs, POB 5800,MS-1319, Albuquerque, NM 87185 USA.
EM bwbarre@sandia.gov; kshemme@sandia.gov; kbwheel@sandia.gov;
keith.d.underwood@intel.com
FU U.S. Department of Energy's National Nuclear Security Administration
[DE-AC04-94AL85000]
FX Sandia National Laboratories is a multi-program laboratory managed and
operated by Sandia Corporation, a wholly owned subsidiary of Lockheed
Martin Corporation,for the U.S. Department of Energys National Nuclear
Security Administration under contract DE-AC04-94AL85000.
NR 15
TC 1
Z9 1
U1 0
U2 0
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
SN 0302-9743
BN 978-3-642-24448-3
J9 LECT NOTES COMPUT SC
PY 2011
VL 6960
BP 120
EP +
PG 3
WC Computer Science, Theory & Methods
SC Computer Science
GA BBH09
UT WOS:000306816800015
ER
PT S
AU Goodell, D
Gropp, W
Zhao, X
Thakur, R
AF Goodell, David
Gropp, William
Zhao, Xin
Thakur, Rajeev
BE Cotronis, Y
Danalis, A
Nikolopoulos, DS
Dongarra, J
TI Scalable Memory Use in MPI: A Case Study with MPICH2
SO RECENT ADVANCES IN THE MESSAGE PASSING INTERFACE
SE Lecture Notes in Computer Science
LA English
DT Proceedings Paper
CT 18th European MPI Users Group Meeting (EuroMPI 2011)
CY SEP 18-21, 2011
CL Santorini, GREECE
SP Microsoft, ParTec, Univ Tennessee, Innovat Comp Lab, Mellanox Technol, Univ Athens
AB One of the factors that can limit the scalability of MPI to exascale is the amount of memory consumed by the MPI implementation. In fact, some researchers believe that existing MPI implementations, if used unchanged, will themselves consume a large fraction of the available system memory at exascale. To investigate and address this issue, we undertook a study of the memory consumed by the MPICH2 implementation of MPI, with a focus on identifying parts of the code where the memory consumed per process scales linearly with the total number of processes. We report on the findings of this study and discuss ways to avoid the linear growth in memory consumption. We also describe specific optimizations that we implemented in MPICH2 to avoid this linear growth and present experimental results demonstrating the memory savings achieved and the impact on performance.
C1 [Goodell, David; Thakur, Rajeev] Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA.
[Gropp, William; Zhao, Xin] Univ Illinois, Chicago, IL 61801 USA.
RP Goodell, D (reprint author), Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM goodell@mcs.anl.gov; wgropp@illinois.edu; xinzhao3@illinois.edu;
thakur@mcs.anl.gov
RI Dongarra, Jack/E-3987-2014;
OI Gropp, William/0000-0003-2905-3029
FU U.S. Department of Energy [DE-AC02-06CH11357, DE-FG02-08ER25835];
National Science Foundation [0702182]
FX This work was supported by the U.S. Department of Energy, under Contract
DE-AC02-06CH11357 and Award DE-FG02-08ER25835,and by the National
Science Foundation Grant #0702182.
NR 8
TC 4
Z9 4
U1 0
U2 0
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
SN 0302-9743
BN 978-3-642-24448-3
J9 LECT NOTES COMPUT SC
PY 2011
VL 6960
BP 140
EP +
PG 2
WC Computer Science, Theory & Methods
SC Computer Science
GA BBH09
UT WOS:000306816800017
ER
PT S
AU Gropp, W
Hoefler, T
Thakur, R
Traff, JL
AF Gropp, William
Hoefler, Torsten
Thakur, Rajeev
Traeff, Jesper Larsson
BE Cotronis, Y
Danalis, A
Nikolopoulos, DS
Dongarra, J
TI Performance Expectations and Guidelines for MPI Derived Datatypes
SO RECENT ADVANCES IN THE MESSAGE PASSING INTERFACE
SE Lecture Notes in Computer Science
LA English
DT Proceedings Paper
CT 18th European MPI Users Group Meeting (EuroMPI 2011)
CY SEP 18-21, 2011
CL Santorini, GREECE
SP Microsoft, ParTec, Univ Tennessee, Innovat Comp Lab, Mellanox Technol, Univ Athens
AB MPI's derived datatypes provide a powerful mechanism for concisely describing arbitrary, noncontiguous layouts of user data for use in MPI communication. This paper formulates self-consistent performance guidelines for derived datatypes. Such guidelines make performance expectations for derived datatypes explicit and suggest relevant optimizations to MPI implementers. We also identify self-consistent guidelines that are too strict to enforce, because they entail NP-hard optimization problems. Enforced self-consistent guidelines assure the user that certain manual datatype optimizations cannot lead to performance improvements, which in turn contributes to performance portability between MPI implementations that behave in accordance with the guidelines. We present results of tests with several MPI implementations, which indicate that many of them violate the guidelines.
C1 [Gropp, William; Hoefler, Torsten] Univ Illinois, Urbana, IL 61801 USA.
[Thakur, Rajeev] Argonne Natl Lab, Argonne, IL 60439 USA.
[Traeff, Jesper Larsson] Univ Vienna, A-1010 Vienna, Austria.
RP Gropp, W (reprint author), Univ Illinois, Urbana, IL 61801 USA.
EM wgropp@illinois.edu; htor@illinois.edu; thakur@mcs.anl.gov;
traff@par.univie.ac.at
RI Dongarra, Jack/E-3987-2014;
OI Gropp, William/0000-0003-2905-3029
FU U.S. Department of Energy [DE-AC02-06CH11357, DE-FG02-08ER25835];
National Science Foundation [OCI 07-25070]
FX This work was supported in part by the Office of Advanced Scientific
Computing Research, Office of Science, U.S. Department of Energy, under
contract DE-AC02-06CH11357 and DE-FG02-08ER25835, and by the Blue Waters
sustained-petascale computing project, which is supported by the
National Science Foundation (award number OCI 07-25070) and the state of
Illinois.
NR 12
TC 6
Z9 6
U1 0
U2 1
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
SN 0302-9743
BN 978-3-642-24448-3
J9 LECT NOTES COMPUT SC
PY 2011
VL 6960
BP 150
EP +
PG 2
WC Computer Science, Theory & Methods
SC Computer Science
GA BBH09
UT WOS:000306816800018
ER
PT S
AU Sundriyal, V
Sosonkina, M
AF Sundriyal, Vaibhav
Sosonkina, Masha
BE Cotronis, Y
Danalis, A
Nikolopoulos, DS
Dongarra, J
TI Per-call Energy Saying Strategies in All-to-All Communications
SO RECENT ADVANCES IN THE MESSAGE PASSING INTERFACE
SE Lecture Notes in Computer Science
LA English
DT Proceedings Paper
CT 18th European MPI Users Group Meeting (EuroMPI 2011)
CY SEP 18-21, 2011
CL Santorini, GREECE
SP Microsoft, ParTec, Univ Tennessee, Innovat Comp Lab, Mellanox, Univ Athens
DE Collective Communications; MPI; DVFS; CPU Throttling
AB With the increase in the peak performance of modern computing platforms, their energy consumption grows as well, which may lead to overwhelming operating costs and failure rates. Techniques, such as Dynamic Voltage and Frequency Scaling (called DVFS) and CPU Clock Modulation (called throttling) are often used to reduce the power consumption of the compute nodes. However, these techniques should be used judiciously during the application execution to avoid significant performance losses. In this work, two implementations of the all-to-all collective operations are studied as to their augmentation with energy saving strategies on the per-call basis. Experiments were performed on the OSU MPI benchmarks as well as on a few real-world problems from the CPMD and NAS suits, in which energy consumption was reduced by up to 10% and 15.7%, respectively, with little performance degradation.
C1 [Sundriyal, Vaibhav; Sosonkina, Masha] Iowa State Univ, Ames Lab, Dept Elect & Comp Engn, Ames, IA 50011 USA.
RP Sundriyal, V (reprint author), Iowa State Univ, Ames Lab, Dept Elect & Comp Engn, Ames, IA 50011 USA.
EM vaibhavs@scl.ameslab.gov; masha@scl.ameslab.gov
RI Dongarra, Jack/E-3987-2014
NR 12
TC 5
Z9 5
U1 0
U2 0
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
SN 0302-9743
BN 978-3-642-24448-3
J9 LECT NOTES COMPUT SC
PY 2011
VL 6960
BP 188
EP 197
PG 10
WC Computer Science, Theory & Methods
SC Computer Science
GA BBH09
UT WOS:000306816800022
ER
PT S
AU Pedretti, KT
Brightwell, R
Doerfler, D
Hemmert, KS
Laros, JH
AF Pedretti, Kevin T.
Brightwell, Ron
Doerfler, Doug
Hemmert, K. Scott
Laros, James H., III
BE Cotronis, Y
Danalis, A
Nikolopoulos, DS
Dongarra, J
TI The Impact of Injection Bandwidth Performance on Application Scalability
SO RECENT ADVANCES IN THE MESSAGE PASSING INTERFACE
SE Lecture Notes in Computer Science
LA English
DT Proceedings Paper
CT 18th European MPI Users Group Meeting (EuroMPI 2011)
CY SEP 18-21, 2011
CL Santorini, GREECE
SP Microsoft, ParTec, Univ Tennessee, Innovat Comp Lab, Mellanox Technol, Univ Athens
DE bandwidth configurahility; benchmarking; exascale co-design
AB Future exascale systems are expected to have significantly reduced network bandwidth relative to computational performance than current systems. Clearly, this will impact bandwidth-intensive applications, so it is important to gain insight into the magnitude of the negative impact on performance and scalability to help identify mitigation strategies. In this paper, we show how current systems can be configured to emulate the expected imbalance of future systems. We demonstrate this approach by reducing the network injection bandwidth performance of a 160-node, 1920-core Cray XT5 system and analyze the performance and scalability of a suite of MPI benchmarks and applications.
C1 [Pedretti, Kevin T.; Brightwell, Ron; Doerfler, Doug; Hemmert, K. Scott; Laros, James H., III] Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Pedretti, KT (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
EM ktpedre@sandia.gov; rbbrigh@sandia.gov; dwdoerf@sandia.gov;
kshemme@sandia.gov; jhlaros@sandia.gov
RI Dongarra, Jack/E-3987-2014
NR 14
TC 2
Z9 2
U1 0
U2 1
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
SN 0302-9743
BN 978-3-642-24448-3
J9 LECT NOTES COMPUT SC
PY 2011
VL 6960
BP 237
EP 246
PG 10
WC Computer Science, Theory & Methods
SC Computer Science
GA BBH09
UT WOS:000306816800027
ER
PT S
AU Hursey, J
Naughton, T
Vallee, G
Graham, RL
AF Hursey, Joshua
Naughton, Thomas
Vallee, Geoffroy
Graham, Richard L.
BE Cotronis, Y
Danalis, A
Nikolopoulos, DS
Dongarra, J
TI A Log-Scaling Fault Tolerant Agreement Algorithm for a Fault Tolerant
MPI
SO RECENT ADVANCES IN THE MESSAGE PASSING INTERFACE
SE Lecture Notes in Computer Science
LA English
DT Proceedings Paper
CT 18th European MPI Users Group Meeting (EuroMPI 2011)
CY SEP 18-21, 2011
CL Santorini, GREECE
SP Microsoft, ParTec, Univ Tennessee, Innovat Comp Lab, Mellanox, Univ Athens
DE MPI; Fault Tolerance; Agreement Protocol; Run-through Stabilization;
Algorithm Based Fault Tolerance
ID DESIGN
AB The lack of fault tolerance is becoming a limiting factor for application scalability in HPC systems. The MPI does not provide standardized fault tolerance interfaces and semantics. The MPI Forum's Fault Tolerance Working Group is proposing a collective fault tolerant agreement algorithm for the next MPI standard. Such algorithms play a central role in many fault tolerant applications. This paper combines a log-scaling two-phase commit agreement algorithm with a reduction operation to provide the necessary functionality for the new collective without any additional messages. Error handling mechanisms are described that preserve the fault tolerance properties while maintaining overall scalability.
C1 [Hursey, Joshua; Naughton, Thomas; Vallee, Geoffroy; Graham, Richard L.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
RP Hursey, J (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
EM hurseyj@ornl.gov; naughtont@ornl.gov; valleegr@ornl.gov;
rlgraham@ornl.gov
RI Dongarra, Jack/E-3987-2014
NR 18
TC 6
Z9 6
U1 0
U2 0
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
SN 0302-9743
BN 978-3-642-24448-3
J9 LECT NOTES COMPUT SC
PY 2011
VL 6960
BP 255
EP 263
PG 9
WC Computer Science, Theory & Methods
SC Computer Science
GA BBH09
UT WOS:000306816800029
ER
PT S
AU Ferreira, KB
Riesen, R
Brighwelll, R
Bridges, P
Arnold, D
AF Ferreira, Kurt B.
Riesen, Rolf
Brighwelll, Ron
Bridges, Patrick
Arnold, Dorian
BE Cotronis, Y
Danalis, A
Nikolopoulos, DS
Dongarra, J
TI libhashckpt: Hash-Based Incremental Checkpointing Using GPU's
SO RECENT ADVANCES IN THE MESSAGE PASSING INTERFACE
SE Lecture Notes in Computer Science
LA English
DT Proceedings Paper
CT 18th European MPI Users Group Meeting (EuroMPI 2011)
CY SEP 18-21, 2011
CL Santorini, GREECE
SP Microsoft, ParTec, Univ Tennessee, Innovat Comp Lab, Mellanox Technol, Univ Athens
AB Concern is beginning to grow in the high-performance computing (HPC) community regarding the reliability guarantees of future large-scale systems. Disk-based coordinated checkpoint/restart has been the dominant fault tolerance mechanism in HPC systems for the last 30 years. Checkpoint performance is so fundamental to scalability that nearly all capability applications have custom checkpoint strategies to minimize state and reduce checkpoint time. One well-known optimization to traditional checkpoint/restart is incremental checkpointing, which has a number of known limitations. To address these limitations, we introduce libhashckpt; a hybrid incremental checkpointing solution that uses both page protection and hashing on GPUs to determine changes in application data with very low overhead. Using real capability workloads, we show the merit of this technique for a certain class of HPC applications.
C1 [Ferreira, Kurt B.; Brighwelll, Ron] Sandia Natl Labs, Livermore, CA 94550 USA.
[Riesen, Rolf] IBM Res, Dublin, Ireland.
[Ferreira, Kurt B.; Bridges, Patrick; Arnold, Dorian] Univ New Mexico, Dept Comp Sci, Albuquerque, NM 87131 USA.
RP Ferreira, KB (reprint author), Sandia Natl Labs, Livermore, CA 94550 USA.
EM kbferre@sandia.gov; rolf.riesen@ie.ibm.com; rbbrigh@sandia.gov;
bridges@cs.unm.edu; darnold@cs.unm.edu
RI Dongarra, Jack/E-3987-2014
FU U.S. Department of Energy's National Nuclear Security Administration
[DE-AC04-94AL85000]
FX Sandia National Laboratories is a multi-program laboratory operated by
Sandia Corporation, a wholly owned subsidiary of Lockheed Martin
Corperation, for the U.S. Department of Energys National Nuclear
Security Administration under contract DE-AC04-94AL85000.
NR 18
TC 11
Z9 11
U1 0
U2 2
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
SN 0302-9743
BN 978-3-642-24448-3
J9 LECT NOTES COMPUT SC
PY 2011
VL 6960
BP 272
EP +
PG 3
WC Computer Science, Theory & Methods
SC Computer Science
GA BBH09
UT WOS:000306816800031
ER
PT S
AU Dinan, J
Krishnamoorthy, S
Balaji, P
Hammond, JR
Krishnan, M
Tipparaju, V
Vishnu, A
AF Dinan, James
Krishnamoorthy, Sriram
Balaji, Pavan
Hammond, Jeff R.
Krishnan, Manojkumar
Tipparaju, Vinod
Vishnu, Abhinav
BE Cotronis, Y
Danalis, A
Nikolopoulos, DS
Dongarra, J
TI Noncollective Communicator Creation in MPI
SO RECENT ADVANCES IN THE MESSAGE PASSING INTERFACE
SE Lecture Notes in Computer Science
LA English
DT Proceedings Paper
CT 18th European MPI Users Group Meeting (EuroMPI 2011)
CY SEP 18-21, 2011
CL Santorini, GREECE
SP Microsoft, ParTec, Univ Tennessee, Innovat Comp Lab, Mellanox Technol, Univ Athens
AB MPI communicators abstract communication operations across application modules, facilitating seamless composition of different libraries. In addition, communicators provide the ability to form groups of processes and establish multiple levels of parallelism. Traditionally, communicators have been collectively created in the context of the parent communicator. The recent thrust toward systems at petascale and beyond has brought forth new application use cases, including fault tolerance and load balancing, that highlight the ability to construct an MPI communicator in the context of its new process group as a key capability. However, it has long been believed that MPI is not capable of allowing the user to form a new communicator in this way. We present a new algorithm that allows the user to create such flexible process groups using only the functionality given in the current MPI standard. We explore performance implications of this technique and demonstrate its utility for load balancing in the context of a Markov chain Monte Carlo computation. In comparison with a traditional collective approach, noncollective communicator creation enables a 30% improvement in execution time through asynchronous load balancing.
C1 [Dinan, James; Balaji, Pavan; Hammond, Jeff R.] Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA.
[Krishnamoorthy, Sriram; Krishnan, Manojkumar; Vishnu, Abhinav] Pacific Northwest Natl Lab, Richland, WA USA.
[Tipparaju, Vinod] Oak Ridge Natl Lab, Oak Ridge, TN USA.
RP Dinan, J (reprint author), Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM dinan@mcs.anl.gov; sriram@pnl.gov; balaji@mcs.anl.gov;
jhammond@alcf.anl.gov; manoj@pnl.gov; tipparajuv@ornl.gov;
abhinav.vishnu@pnl.gov
RI Dongarra, Jack/E-3987-2014;
OI Hammond, Jeff/0000-0003-3181-8190
FU Argonne Leadership Computing Facility (ALCF); U.S. Department of Energy
[DE-AC02-06CH11357, DE-AC05-00OR22725, DE-ACO6-76RL01830]
FX This work was supported through a resource grant from the Argonne
Leadership Computing Facility (ALCF) and by the U.S. Department of
Energy under contracts DE-AC02-06CH11357, DE-AC05-00OR22725, and
DE-ACO6-76RL01830.
NR 10
TC 5
Z9 5
U1 0
U2 0
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
SN 0302-9743
BN 978-3-642-24448-3
J9 LECT NOTES COMPUT SC
PY 2011
VL 6960
BP 282
EP +
PG 2
WC Computer Science, Theory & Methods
SC Computer Science
GA BBH09
UT WOS:000306816800032
ER
PT S
AU Cope, J
Iskra, K
Kimpe, D
Ross, R
AF Cope, Jason
Iskra, Kamil
Kimpe, Dries
Ross, Robert
BE Cotronis, Y
Danalis, A
Nikolopoulos, DS
Dongarra, J
TI Portable and Scalable MPI Shared File Pointers
SO RECENT ADVANCES IN THE MESSAGE PASSING INTERFACE
SE Lecture Notes in Computer Science
LA English
DT Proceedings Paper
CT 18th European MPI Users Group Meeting (EuroMPI 2011)
CY SEP 18-21, 2011
CL Santorini, GREECE
SP Microsoft, ParTec, Univ Tennessee, Innovat Comp Lab, Mellanox Technol, Univ Athens
AB While the I/O functions described in the MPI standard included shared file pointer support from the beginning, the performance and portability of these functions have been subpar at best. ROMIO [1], which provides the MPI-IO functionality for most MPI libraries, to this day uses a separate file to manage the shared file pointer. This file provides the shared location that holds the current value of the shared file pointer. Unfortunately, each access to the shared file pointer involves file lock management and updates to the file contents. Furthermore, support for shared file pointers is riot universally available because few file systems support native shared file pointers [5] and a few file systems do not support file locks [3].
Application developers rarely use shared file pointers, even though many applications can benefit from this file I/O capability. These applications are typically loosely coupled and rarely exhibit application-wide synchronization. Examples include application tracing toolkits [8,4] and. many-task computing applications [10]. Other approaches to the shared file pointer I/O models frequently used by these application classes include file-per-process, file-per-thread, and file-per-rank approaches. While these approaches work relatively well at smaller scales, they fail to scale to leadership-class computing systems because of the intense metadata loads generated they generate. Recent research identified significant improvements from using shared-file I/O instead of multifile I/O patterns on leadership-class systems [6].
In this paper, we propose integrating shared file support into the I/O forwarding layer commonly found on leadership-class computing systems. I/O forwarding middleware, such as the I/O Forwarding Scalability Layer (IOFSL) [9,2], bridges the compute and I/O subsystems of leadership-class computing systems. This middleware layer captures all file I/O requests generated by applications executing on compute nodes and forwards them to dedicated I/O nodes. These I/O nodes, a common hardware feature of leadership-class computing systems, execute the I/O requests on behalf of the application. The I/O forwarding layer on these system is best suited to provide and manage shared file pointers because it has access to all application I/O requests and can provide enhanced file I/O capabilities independent of the system and I/O software stack. By embedding this capability into the I/O forwarding layer, applications developers can utilize shared file pointers for a variety of file I/O APIs (MPI-IO, POSIX, and ZOIDFS), synchronization levels (collective and independent I/O), and computing systems (IBM Blue Gene and Cray XT systems).
C1 [Cope, Jason; Iskra, Kamil; Ross, Robert] Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA.
[Kimpe, Dries] Univ Chicago, Chicago, IL 60637 USA.
RP Cope, J (reprint author), Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM copej@mcs.anl.gov; iskra@mcs.anl.gov; dkimpe@mcs.anl.gov;
rross@mcs.anl.gov
RI Dongarra, Jack/E-3987-2014
FU U.S. Department of Energy [DE-AC02-06CH11357]
FX This work was supported by the U.S. Department of Energy, under Contract
DE-AC02-06CH11357.
NR 9
TC 0
Z9 0
U1 0
U2 0
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
SN 0302-9743
BN 978-3-642-24448-3
J9 LECT NOTES COMPUT SC
PY 2011
VL 6960
BP 312
EP +
PG 2
WC Computer Science, Theory & Methods
SC Computer Science
GA BBH09
UT WOS:000306816800035
ER
PT S
AU Buntinas, D
AF Buntinas, Darius
BE Cotronis, Y
Danalis, A
Nikolopoulos, DS
Dongarra, J
TI Scalable Distributed Consensus to Support MPI Fault Tolerance
SO RECENT ADVANCES IN THE MESSAGE PASSING INTERFACE
SE Lecture Notes in Computer Science
LA English
DT Proceedings Paper
CT 18th European MPI Users Group Meeting (EuroMPI 2011)
CY SEP 18-21, 2011
CL Santorini, GREECE
SP Microsoft, ParTec, Univ Tennessee, Innovat Comp Lab, Mellanox, Univ Athens
AB As system sizes increase, the amount of time in winch an application can run without experiencing a failure decreases. Exascale applications will need to address fault tolerance. In order to support algorithm-based fault tolerance, communication libraries will need to provide fault-tolerance features to the application. One important fault-tolerance operation is distributed consensus. This is used, for example, to collectively decide on a set of failed processes. This paper describes a scalable, distributed consensus algorithm that is used to support new MPI fault-tolerance features proposed by the MPI 3 Forum's fault-tolerance working group. The algorithm was implemented and evaluated on a 4,096-core Blue Gene/P. The implementation was able to perform a full-scale distributed consensus in 305 mu s and scaled logarithmically.
C1 Argonne Natl Lab, Argonne, IL 60439 USA.
RP Buntinas, D (reprint author), Argonne Natl Lab, Argonne, IL 60439 USA.
RI Dongarra, Jack/E-3987-2014
NR 5
TC 1
Z9 1
U1 0
U2 0
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
SN 0302-9743
BN 978-3-642-24448-3
J9 LECT NOTES COMPUT SC
PY 2011
VL 6960
BP 325
EP 328
PG 4
WC Computer Science, Theory & Methods
SC Computer Science
GA BBH09
UT WOS:000306816800039
ER
PT S
AU Hursey, J
Graham, RL
Bronevetsky, G
Buntinas, D
Pritchard, H
Solt, DG
AF Hursey, Joshua
Graham, Richard L.
Bronevetsky, Greg
Buntinas, Darius
Pritchard, Howard
Solt, David G.
BE Cotronis, Y
Danalis, A
Nikolopoulos, DS
Dongarra, J
TI Run-Through Stabilization: An MPI Proposal for Process Fault Tolerance
SO RECENT ADVANCES IN THE MESSAGE PASSING INTERFACE
SE Lecture Notes in Computer Science
LA English
DT Proceedings Paper
CT 18th European MPI Users Group Meeting (EuroMPI 2011)
CY SEP 18-21, 2011
CL Santorini, GREECE
SP Microsoft, ParTec, Univ Tennessee, Innovat Comp Lab, Mellanox Technol, Univ Athens
DE MPI; Fault Tolerance; Run-through Stabilization; Algorithm Based Fault
Tolerance; Fail-Stop Process Failure
AB The MPI standard lacks semantics and interfaces for sustained application execution in the presence of process failures. Exascale HPC systems may require scalable, fault resilient MPI applications. The mission of the MPI Forum's Fault Tolerance Working Group is to enhance the standard to enable the development of scalable, fault tolerant HPC applications. This paper presents an overview of the Run-Through Stabilization proposal. This proposal allows an application to continue execution even if MPI processes fail during execution. The discussion introduces the implications on point-to-point and collective operations over communicators, though the full proposal addresses all aspects of the MPI standard.
C1 [Hursey, Joshua; Graham, Richard L.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
[Bronevetsky, Greg] Lawrence Livermore Natl Lab, Lawrence, KS USA.
[Buntinas, Darius] Argonne Natl Lab, Argonne, IL USA.
[Pritchard, Howard] Cray Inc, Eagan, MN 55121 USA.
[Solt, David G.] Hewlett Packard Corp, Palo Alto, CA USA.
RP Hursey, J (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
EM hurseyjj@ornl.gov; rlgraham@ornl.gov; greg@bronevetsky.com;
bantinas@mcs.anl.gov; howardp@cray.com; david.solt@hp.com
RI Dongarra, Jack/E-3987-2014
FU Office of Advanced Scientific Computing Research; Mathematical,
Information, and Computational Sciences Division at Oak Ridge National
Laboratory; U.S. Department of Energy [DE-AC05-00OR22725,
DE-AC02-06CH11357, DEAC52-07NA27344]; Lawrence Livermore National
Laboratory; ARRA / DoE - Early Career Research Program; National Science
Foundation [CCF-0816909]
FX Special thanks to the MPI Forum and Fault Tolerance Working Group
members that contributed to the run-through stabilization proposal.
Their comments and insights continue to help strengthen the developing
proposals targeted for inclusion in the Message Passing Interface (MPI)
standard. Research sponsored by the Office of Advanced Scientific
Computing Research; Office of Science; Mathematical, Information, and
Computational Sciences Division at Oak Ridge National Laboratory; U.S.
Department of Energy, under Contract No. DE-AC05-00OR22725 with
UT-Battelle, LLC; U.S. Department of Energy, under Contract No.
DE-AC02-06CH11357; U.S. Department of Energy, under Contract No.
DEAC52-07NA27344 by Lawrence Livermore National Laboratory; The ARRA /
DoE - Early Career Research Program; and by award #CCF-0816909 from the
National Science Foundation.
NR 5
TC 9
Z9 9
U1 0
U2 0
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
SN 0302-9743
BN 978-3-642-24448-3
J9 LECT NOTES COMPUT SC
PY 2011
VL 6960
BP 329
EP +
PG 2
WC Computer Science, Theory & Methods
SC Computer Science
GA BBH09
UT WOS:000306816800040
ER
PT S
AU Erskine, DJ
Edelstein, J
Muirhead, P
Muterspaugh, M
Covey, K
Mondo, D
Vanderburg, A
Andelson, P
Kimber, D
Sirk, M
Lloyd, J
AF Erskine, David J.
Edelstein, J.
Muirhead, P.
Muterspaugh, M.
Covey, K.
Mondo, D.
Vanderburg, A.
Andelson, P.
Kimber, D.
Sirk, M.
Lloyd, J.
BE MacEwen, HA
Breckinridge, JB
TI Ten-fold spectral resolution boosting using TEDI at the Mt. Palomar NIR
Triplespec spectrograph
SO UV/OPTICAL/IR SPACE TELESCOPES AND INSTRUMENTS: INNOVATIVE TECHNOLOGIES
AND CONCEPTS V
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on UV/Optical/IR Space Telescopes and Instruments -
Innovative Technologies and Concepts V
CY AUG 21-24, 2011
CL San Diego, CA
SP SPIE
DE High resolution spectroscopy; Externally Dispersed Interferometry;
Dispersed Fixed Delay Interferometry; Resolution Boosting; Doppler
radial velocimetry; Fourier Transform Spectroscopy
ID EXTERNALLY DISPERSED INTERFEROMETER; MICHELSON INTERFEROMETER;
INSTRUMENT
AB An optical technique called "interferometric spectral reconstruction" (ISR) is capable of increasing a spectrograph's resolution and stability by large factors, well beyond its classical limits. We have demonstrated a 6-to 11-fold increase in the Triplespec effective spectral resolution (R=2,700) to achieve R=16,000 at 4100 cm(-1) to 30,000 at 9600 cm(-1) by applying special Fourier processing to a series of exposures with different delays (optical path differences) taken with the TEDI interferometer and the near-infrared Triplespec spectrograph at the Mt. Palomar Observatory 200 inch telescope. The TEDI is an externally dispersed interferometer (EDI) used for Doppler radial velocity measurements on M-stars, and now also used for ISR. The resolution improvement is observed in both stellar and telluric features simultaneously over the entire spectrograph bandwidth (0.9-2.45 mu m). By expanding the delay series, we anticipate achieving resolutions of R=45,000 or more. Since the delay is not continuously scanned, the technique is advantageous for measuring time-variable phenomena or in varying conditions (e.g. planetary fly-bys). The photon limited signal to noise ratio can be 100 times better than a classic Fourier Transform Spectrometer (FTS) due to the benefit of dispersion.
C1 [Erskine, David J.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
RP Erskine, DJ (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
EM erskine1@llnl.gov; jerrye@ssl.berkeley.edu; philm@astro.caltech.edu;
jpl@astro.cornell.edu
RI Muirhead, Philip/H-2273-2014;
OI Muirhead, Philip/0000-0002-0638-8822; Covey, Kevin/0000-0001-6914-7797
NR 15
TC 2
Z9 2
U1 0
U2 0
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8756-8
J9 PROC SPIE
PY 2011
VL 8146
AR 81460M
DI 10.1117/12.892664
PG 10
WC Astronomy & Astrophysics; Optics; Imaging Science & Photographic
Technology
SC Astronomy & Astrophysics; Optics; Imaging Science & Photographic
Technology
GA BBA82
UT WOS:000306323000022
ER
PT S
AU Sturm, BW
Cherepy, NJ
Drury, OB
Thelin, PA
Fisher, SE
O'Neal, SP
Payne, SA
Burger, A
Boatner, LA
Ramey, JO
Shah, KS
Hawrami, R
AF Sturm, Benjamin W.
Cherepy, Nerine J.
Drury, Owen B.
Thelin, Peter A.
Fisher, Scott E.
O'Neal, Sean P.
Payne, Stephen A.
Burger, Arnold
Boatner, Lynn A.
Ramey, Joanne O.
Shah, Kanai S.
Hawrami, Rastgo
GP IEEE
TI Characteristics of Undoped and Europium-doped SrI2 Scintillator
Detectors
SO 2011 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE
(NSS/MIC)
SE IEEE Nuclear Science Symposium Conference Record
LA English
DT Proceedings Paper
CT IEEE Nuclear Science Symposium/Medical Imaging Conference (NSS/MIC)/18th
International Workshop on Room-Temperature Semiconductor X-Ray and
Gamma-Ray Detectors
CY OCT 23-29, 2011
CL Valencia, SPAIN
SP IEEE, Inst Elect & Elect Engineers Nucl & Plasma Sci Soc (IEEE NPSS)
ID DESIGN
AB High energy resolution gamma-ray detectors that can be formed into relatively large sizes while operating at room temperature offer many advantages for national security applications. We are working toward that goal through the development of SrI2(Eu) scintillator detectors, which routinely provide <3.0% energy resolution at 662 keY with volumes >10 cm(3). In this study, we have tested pure, undoped SrI2 to gain a better understanding of the scintillation properties and spectroscopic performance achievable without activation. An undoped crystal grown from 99.999% pure SrI2 pellets was tested for its spectroscopic performance, its light yield, and uniformity of scintillation light collection as a function of gamma-ray interaction position relative to the crystal growth direction. Undoped SrI2 was found to provide energy resolution of 5.3% at 662 keY, and the light collection non uniformity varied by only 0.72% over the length of the crystal. Measurements of both a 3% Eu-doped and the undoped SrI2 crystal were carried out in the SLYNCI facility and indicate differences in their light yield non-proportionality. The surprisingly good scintillation properties of the pure SrI2 crystal suggests that with high-purity feedstock, further reduction of the Eu concentration can be made to grow larger crystals while not adversely impacting the spectroscopic performance.
C1 [Sturm, Benjamin W.; Cherepy, Nerine J.; Drury, Owen B.; Thelin, Peter A.; Fisher, Scott E.; O'Neal, Sean P.; Payne, Stephen A.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
RP Sturm, BW (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
EM sturm1@llnl.gov
RI Cherepy, Nerine/F-6176-2013; Melcher, Charles/E-9818-2012; Boatner,
Lynn/I-6428-2013
OI Cherepy, Nerine/0000-0001-8561-923X; Melcher,
Charles/0000-0002-4586-4764; Boatner, Lynn/0000-0002-0235-7594
FU Department of Homeland Security Domestic Nuclear Detection Office - U.
S. Department of Energy by Lawrence Livermore National Laboratory
[DE-ACS2- 07NA27344]; [LLNL-PROC-S 13947]
FX This work was supported by the Department of Homeland Security Domestic
Nuclear Detection Office and was performed under the auspices of the U.
S. Department of Energy by Lawrence Livermore National Laboratory under
Contract DE-ACS2- 07NA27344. LLNL-PROC-S 13947.
NR 10
TC 6
Z9 6
U1 0
U2 2
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1082-3654
BN 978-1-4673-0120-6
J9 IEEE NUCL SCI CONF R
PY 2011
BP 7
EP 11
PG 5
WC Engineering, Electrical & Electronic; Physics, Applied; Imaging Science
& Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging
SC Engineering; Physics; Imaging Science & Photographic Technology;
Radiology, Nuclear Medicine & Medical Imaging
GA BAM64
UT WOS:000304755600002
ER
PT S
AU Vaniachine, AV
AF Vaniachine, Alexandre V.
CA ATLAS Collaboration
GP IEEE
TI ATLAS Detector Data Processing on the Grid
SO 2011 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE
(NSS/MIC)
SE IEEE Nuclear Science Symposium Conference Record
LA English
DT Proceedings Paper
CT IEEE Nuclear Science Symposium/Medical Imaging Conference (NSS/MIC)/18th
International Workshop on Room-Temperature Semiconductor X-Ray and
Gamma-Ray Detectors
CY OCT 23-29, 2011
CL Valencia, SPAIN
SP IEEE, Inst Elect & Elect Engineers Nucl & Plasma Sci Soc (IEEE NPSS)
AB The ATLAS detector is in the second year of continuous LHC running. A starting point for ATLAS physics analysis is data reconstruction. Following the prompt reconstruction, the ATLAS data are reprocessed, which allows reconstruction of the data with updated software and calibrations providing coherence and improving the quality of the reconstructed data for physics analysis.
The large-scale data reprocessing campaigns are conducted on the Grid. Computing centers around the world participate in reprocessing providing tens of thousands of CPU-cores for a faster throughput. Reprocessing relies upon underlying ATLAS technologies providing reproducibility of results, scalable database access, orchestrated workflow and performance monitoring, dynamic workload sharing, and petascale data integrity control. These technologies are also empowering ATLAS physics and subsystem groups in further data processing steps on the Grid.
We present the experience of large-scale data reprocessing campaigns and group data processing on the Grid.
C1 [Vaniachine, Alexandre V.] Argonne Natl Lab, Div High Energy Phys, Argonne, IL 60439 USA.
RP Vaniachine, AV (reprint author), Argonne Natl Lab, Div High Energy Phys, Argonne, IL 60439 USA.
EM vanachine@anl.gov
RI Vanyashin, Aleksandr/H-7796-2013
OI Vanyashin, Aleksandr/0000-0002-0367-5666
NR 5
TC 6
Z9 6
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1082-3654
BN 978-1-4673-0120-6
J9 IEEE NUCL SCI CONF R
PY 2011
BP 104
EP 107
PG 4
WC Engineering, Electrical & Electronic; Physics, Applied; Imaging Science
& Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging
SC Engineering; Physics; Imaging Science & Photographic Technology;
Radiology, Nuclear Medicine & Medical Imaging
GA BAM64
UT WOS:000304755600019
ER
PT S
AU Ruz, J
AF Ruz, J.
CA CAST Collaboration
GP IEEE
TI Determination of effective axion masses in the helium-3 buffer of CAST
SO 2011 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE
(NSS/MIC)
SE IEEE Nuclear Science Symposium Conference Record
LA English
DT Proceedings Paper
CT IEEE Nuclear Science Symposium/Medical Imaging Conference (NSS/MIC)/18th
International Workshop on Room-Temperature Semiconductor X-Ray and
Gamma-Ray Detectors
CY OCT 23-29, 2011
CL Valencia, SPAIN
SP IEEE, Inst Elect & Elect Engineers Nucl & Plasma Sci Soc (IEEE NPSS)
ID DETECTOR
AB The CERN Axion Solar Telescope (CAST) is a ground based experiment located in Geneva (Switzerland) searching for axions coming from the Sun. Axions, hypothetical particles that not only could solve the strong CP problem but also be one of the favoured candidates for dark matter, can be produced in the core of the Sun via the Primakoff effect. They can be reconverted into X-ray photons on Earth in the presence of strong electromagnetic fields. In order to look for axions, CAST points a decommissioned LHC prototype dipole magnet with different X-ray detectors installed in both ends of the magnet towards the Sun. The analysis of the data acquired during the first phase of the experiment yielded the most restrictive experimental upper limit on the axion-to-photon coupling constant for axion masses up to about 0.02 eV/c(2). During the second phase, CAST extends its mass sensitivity by tuning the electron density present in the magnetic field region. Injecting precise amounts of helium gas has enabled CAST to look for axion masses up to 1.2 eV/c(2). This paper studies the determination of the effective axion masses scanned at CAST during its second phase. The use of a helium gas buffer at temperatures of 1.8 K has required a detailed knowledge of the gas density distribution. Complete sets of computational fluid dynamic simulations validated with experimental data have been crucial to obtain accurate results.
C1 [Ruz, J.] Lawrence Livermore Natl Lab, Phys & Life Sci Dept, Livermore, CA USA.
RP Ruz, J (reprint author), Lawrence Livermore Natl Lab, Phys & Life Sci Dept, Livermore, CA USA.
EM ruzarmendari1@llnl.gov
NR 15
TC 0
Z9 0
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1082-3654
BN 978-1-4673-0120-6
J9 IEEE NUCL SCI CONF R
PY 2011
BP 135
EP 140
PG 6
WC Engineering, Electrical & Electronic; Physics, Applied; Imaging Science
& Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging
SC Engineering; Physics; Imaging Science & Photographic Technology;
Radiology, Nuclear Medicine & Medical Imaging
GA BAM64
UT WOS:000304755600025
ER
PT S
AU Purschke, ML
AF Purschke, Martin L.
CA PHENIX Collaboration
GP IEEE
TI Data Acquisition Technologies for the PHENIX Detector Upgrades
SO 2011 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE
(NSS/MIC)
SE IEEE Nuclear Science Symposium Conference Record
LA English
DT Proceedings Paper
CT IEEE Nuclear Science Symposium/Medical Imaging Conference (NSS/MIC)/18th
International Workshop on Room-Temperature Semiconductor X-Ray and
Gamma-Ray Detectors
CY OCT 23-29, 2011
CL Valencia, SPAIN
SP IEEE, Inst Elect & Elect Engineers Nucl & Plasma Sci Soc (IEEE NPSS)
AB PHENIX [1] is one of two large experiments at Brookhaven National Laboratory's Relativistic Heavy Ion Collider (RHIC). The summer shutdown of 2010 marked a milestone with the installation of the PHENIX Silicon Vertex Tracker (VTX), the first detector which uses a new generation of readout electronics. In addition to accommodating the new readout electronics in the PHENIX data acquisition, we implemented other significant changes to the system, such as the move to 10 Gigabit Ethernet networks for the components with the highest data volumes. Once fully installed, the new detectors will about triple the current maximum data rate from about 600MB/s to 1.8 GB/s. In Run 11, we have observed a peak rate of about 1400MB/s of compressed data.
C1 [Purschke, Martin L.; PHENIX Collaboration] Brookhaven Natl Lab, Upton, NY 11973 USA.
RP Purschke, ML (reprint author), Brookhaven Natl Lab, Upton, NY 11973 USA.
NR 1
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1082-3654
BN 978-1-4673-0120-6
J9 IEEE NUCL SCI CONF R
PY 2011
BP 153
EP 155
PG 3
WC Engineering, Electrical & Electronic; Physics, Applied; Imaging Science
& Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging
SC Engineering; Physics; Imaging Science & Photographic Technology;
Radiology, Nuclear Medicine & Medical Imaging
GA BAM64
UT WOS:000304755600028
ER
PT S
AU Looker, Q
Amman, M
Vetter, K
Barton, P
Luke, PN
AF Looker, Q.
Amman, M.
Vetter, K.
Barton, P.
Luke, P. N.
GP IEEE
TI Optimization of Process Parameters for Amorphous Semiconductor Contacts
on High-Purity Germanium Detectors
SO 2011 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE
(NSS/MIC)
SE IEEE Nuclear Science Symposium Conference Record
LA English
DT Proceedings Paper
CT IEEE Nuclear Science Symposium/Medical Imaging Conference (NSS/MIC)/18th
International Workshop on Room-Temperature Semiconductor X-Ray and
Gamma-Ray Detectors
CY OCT 23-29, 2011
CL Valencia, SPAIN
SP IEEE, Inst Elect & Elect Engineers Nucl & Plasma Sci Soc (IEEE NPSS)
ID SPECTROSCOPY
AB High-purity germanium (HPGe) represents a premium material for gamma-ray spectroscopy and imaging, with electrical contacts playing a large role in detector performance. Amorphous semiconductor contacts to HPGe detectors have been demonstrated to operate as a sufficient charge injection barrier, while providing a simple fabrication process and flexibility in contact geometry and bias application. The primary remaining challenges are reliable reproduction of high barrier heights and inter-contact impedance as well as stability with respect to time and temperature cycling. The results from a study of electron barrier height and temperature cycling stability with varying process conditions are given in this paper.
C1 [Looker, Q.] Univ Calif Berkeley, Dept Nucl Engn, Berkeley, CA 94720 USA.
[Amman, M.; Vetter, K.; Barton, P.; Luke, P. N.] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
RP Looker, Q (reprint author), Univ Calif Berkeley, Dept Nucl Engn, Berkeley, CA 94720 USA.
EM qlooker@lbl.gov
FU U.S. Department of Energy Office of Nuclear Science [KB0401022]
FX This work was supported by the U.S. Department of Energy Office of
Nuclear Science under contract # KB0401022
NR 11
TC 0
Z9 0
U1 1
U2 3
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1082-3654
BN 978-1-4673-0120-6
J9 IEEE NUCL SCI CONF R
PY 2011
BP 222
EP 227
PG 6
WC Engineering, Electrical & Electronic; Physics, Applied; Imaging Science
& Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging
SC Engineering; Physics; Imaging Science & Photographic Technology;
Radiology, Nuclear Medicine & Medical Imaging
GA BAM64
UT WOS:000304755600043
ER
PT S
AU Weisenberger, AG
Dong, H
Kross, B
Lee, SJ
McKisson, J
McKisson, JE
Xi, W
Zorn, C
Howell, CR
Crowell, AS
Cumberbatch, L
Reid, CD
Smith, MF
Stolin, A
AF Weisenberger, A. G.
Dong, H.
Kross, B.
Lee, S. J.
McKisson, J.
McKisson, J. E.
Xi, W.
Zorn, C.
Howell, C. R.
Crowell, A. S.
Cumberbatch, L.
Reid, C. D.
Smith, M. F.
Stolin, A.
GP IEEE
TI Development of PhytoPET: A Plant Imaging PET System
SO 2011 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE
(NSS/MIC)
SE IEEE Nuclear Science Symposium Conference Record
LA English
DT Proceedings Paper
CT IEEE Nuclear Science Symposium/Medical Imaging Conference (NSS/MIC)/18th
International Workshop on Room-Temperature Semiconductor X-Ray and
Gamma-Ray Detectors
CY OCT 23-29, 2011
CL Valencia, SPAIN
SP IEEE, Inst Elect & Elect Engineers Nucl & Plasma Sci Soc (IEEE NPSS)
AB The development and initial evaluation of a high-resolution positron emission tomography (PET) system to image the biodistribution of positron emitting tracers in live plants is underway. The positron emitting (CO2)-C-11 tracer is used in plant biology research investigating carbon sequestration in biomass, optimization of plant productivity and biofuel development. This PhytoPET design allows flexible arrangements of PET detectors based on individual standalone detector modules built from single 5 cm x 5 cm Hamamatsu H8500 position sensitive photomultiplier tubes. Each H8500 is coupled to a LYSO:Ce scintillator array composed of 48x48 elements that are 10 mm thick arranged with a 1.0 mm pitch. An Ethernet based 12-bit flash analog to digital data acquisition system with onboard coincident matrix definition is under development to digitize the signals. The detector modules of the PhytoPET system can be arranged and stacked to accommodate various sized plants and plant structures.
C1 [Weisenberger, A. G.; Dong, H.; Kross, B.; Lee, S. J.; McKisson, J.; McKisson, J. E.; Xi, W.; Zorn, C.] Jefferson Lab, Newport News, VA USA.
RP Weisenberger, AG (reprint author), Jefferson Lab, Newport News, VA USA.
EM drew@jlab.org; howell@tunl.duke.edu; msmith7@umm.edu;
astolin@hsc.wvu.edu
NR 11
TC 1
Z9 1
U1 0
U2 5
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1082-3654
BN 978-1-4673-0120-6
J9 IEEE NUCL SCI CONF R
PY 2011
BP 275
EP 278
PG 4
WC Engineering, Electrical & Electronic; Physics, Applied; Imaging Science
& Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging
SC Engineering; Physics; Imaging Science & Photographic Technology;
Radiology, Nuclear Medicine & Medical Imaging
GA BAM64
UT WOS:000304755600055
ER
PT S
AU Mitra, S
Dioszegi, I
AF Mitra, Sudeep
Dioszegi, Istvan
GP IEEE
TI Development of an instrument for non-destructive identification of
Unexploded Ordnance using tagged neutrons - a proof of concept study
SO 2011 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE
(NSS/MIC)
SE IEEE Nuclear Science Symposium Conference Record
LA English
DT Proceedings Paper
CT IEEE Nuclear Science Symposium/Medical Imaging Conference (NSS/MIC)/18th
International Workshop on Room-Temperature Semiconductor X-Ray and
Gamma-Ray Detectors
CY OCT 23-29, 2011
CL Valencia, SPAIN
SP IEEE, Inst Elect & Elect Engineers Nucl & Plasma Sci Soc (IEEE NPSS)
ID PARTICLE TECHNIQUE; INSPECTION SYSTEM
AB This work reports on the efficacy of using 14 MeV neutrons tagged by the associated particle neutron time-of-flight technique (APnTOF) to extract neutron induced characteristic gamma-rays from an object-of-interest with high signal-to-noise ratio (SNR) and without interference from nearby clutter. A small portable API120 neutron generator was operated at a continuous output of similar to 1x10(7) n/s while the gamma-rays were detected using a 12.7x12.7 cm diameter NaI(TI) detector. The alpha-particle detection system comprised a 5-cm diameter fast Amperex XP2020 photomultiplier tube which was mated with the 6.5 cm tiber-optic face-plate of the neutron generator's ZnO(Ga) a-detector. Standard NIM electronics was used for the alpha-gamma coincidence spectroscopy. A graphite cube of dimension 15.2 cm (6 kg) was used as the object-of-interest while a half-gallon bottle of water and a 5-mm thick iron slab were used as clutter items in non-overlapping and overlapping modes. In all cases, carbon (C) signals from the graphite were successfully extracted without interference from the oxygen (0) signals from water. The SNR at the peak energies of 4.43 (C) and 6.13 MeV (0) were found to be 1.3 when spectra were acquired without the time coincidence mode. The SNRs were vastly improved; 22 and 10 for C and 0 respectively in the coincidence mode.
C1 [Mitra, Sudeep] Brookhaven Natl Lab, Dept Environm Sci, Environm Res & Technol Div, Upton, NY 11973 USA.
RP Mitra, S (reprint author), Brookhaven Natl Lab, Dept Environm Sci, Environm Res & Technol Div, Upton, NY 11973 USA.
EM smitra@bnl.gov; dioszegi@bnl.gov
FU U.S. Department of Defense [MR 1769]; Brookhaven Science Associates
[DE-AC02-98CHI0886]
FX Manuscript received November 3, 2011. This work was supported by the
U.S. Department of Defense under it's Strategic Environmental Research
and Development Program (SERDP), Project# MR 1769. This manuscript has
been co-authored by employees of Brookhaven Science Associates, LLC,
under Contract no. DE-AC02-98CHI0886 with the U.S. Department of Energy.
The publisher, by accepting the manuscript for publication, acknowledges
that the U.S. Government retains a nonexclusive, paid-up, irrevocable,
worldwide license to publish or reproduce the published form of this
manuscript, or allow others to do so, for U.S. Government purposes
NR 8
TC 0
Z9 0
U1 0
U2 2
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1082-3654
BN 978-1-4673-0120-6
J9 IEEE NUCL SCI CONF R
PY 2011
BP 285
EP 289
PG 5
WC Engineering, Electrical & Electronic; Physics, Applied; Imaging Science
& Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging
SC Engineering; Physics; Imaging Science & Photographic Technology;
Radiology, Nuclear Medicine & Medical Imaging
GA BAM64
UT WOS:000304755600058
ER
PT S
AU Marleau, P
Brennan, J
Brubaker, E
Mengesha, W
Mrowka, S
Nowack, A
AF Marleau, Peter
Brennan, James
Brubaker, Erik
Mengesha, Wondwosen
Mrowka, Stanley
Nowack, Aaron
GP IEEE
TI Fast Neutron Resonance Tomography using Double Scatter Spectroscopy for
Materials Identification
SO 2011 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE
(NSS/MIC)
SE IEEE Nuclear Science Symposium Conference Record
LA English
DT Proceedings Paper
CT IEEE Nuclear Science Symposium/Medical Imaging Conference (NSS/MIC)/18th
International Workshop on Room-Temperature Semiconductor X-Ray and
Gamma-Ray Detectors
CY OCT 23-29, 2011
CL Valencia, SPAIN
SP IEEE, Inst Elect & Elect Engineers Nucl & Plasma Sci Soc (IEEE NPSS)
ID RADIOGRAPHY
AB Fast neutron based inspection systems are of interest in many Homeland Security applications because they offer the potential for elemental identification particularly for low Z elements which are the prime constituents of explosives. We are investigating a resonance tomography technique which may address some of the current problems found in fast neutron based inspection systems. A commercial off-the-shelf DT generator is used with an array of detectors to probe materials simultaneously over a large energy range and multiple viewing angles allowing for simultaneous 3-D imaging and materials identification. A prototype system has been constructed and we present here recent results for the identification of materials with differing H, C, N, O compositions.
C1 [Marleau, Peter; Brennan, James; Brubaker, Erik; Mengesha, Wondwosen; Mrowka, Stanley; Nowack, Aaron] Sandia Natl Labs, Livermore, CA 94550 USA.
RP Marleau, P (reprint author), Sandia Natl Labs, Livermore, CA 94550 USA.
EM pmarlea@sandia.gov
NR 6
TC 0
Z9 0
U1 1
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1082-3654
BN 978-1-4673-0120-6
J9 IEEE NUCL SCI CONF R
PY 2011
BP 293
EP 295
PG 3
WC Engineering, Electrical & Electronic; Physics, Applied; Imaging Science
& Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging
SC Engineering; Physics; Imaging Science & Photographic Technology;
Radiology, Nuclear Medicine & Medical Imaging
GA BAM64
UT WOS:000304755600060
ER
PT S
AU Popov, V
Degtiarenko, P
AF Popov, Vladimir
Degtiarenko, Pavel
GP IEEE
TI Pulse Mode Readout Techniques for Use with Non-Gridded Industrial
Ionization Chambers
SO 2011 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE
(NSS/MIC)
SE IEEE Nuclear Science Symposium Conference Record
LA English
DT Proceedings Paper
CT IEEE Nuclear Science Symposium/Medical Imaging Conference (NSS/MIC)/18th
International Workshop on Room-Temperature Semiconductor X-Ray and
Gamma-Ray Detectors
CY OCT 23-29, 2011
CL Valencia, SPAIN
SP IEEE, Inst Elect & Elect Engineers Nucl & Plasma Sci Soc (IEEE NPSS)
AB Highly sensitive readout technique for precision long-term radiation measurements has been developed and tested in the Radiation Control Department at Jefferson Lab. The new electronics design is used to retrieve ionization data in a pulse mode. The dedicated data acquisition system works with M-Audio Audiophile 192 High-Definition 24-bit/192 kHz audio cards, taking data in continuous waveform recording mode. The on-line data processing algorithms extract signals of the ionization events from the data flow and measure the ionization value for each event. Two different ion chambers are evaluated. The first is a Reuter-Stokes Argon-filled (at 25 atm) High Pressure Ionization Chamber (HPIC), commonly used as a detector part in many GE Reuter-Stokes instruments of the RSS series. The second is a VacuTec Model 70181, 5 atm Xenon-filled ionization chamber. Results for both chambers indicate that the techniques allow using industrial ICs for high sensitivity and precision long-term radiation measurements, while at the same time providing information about spectral characteristics of the radiation fields.
C1 [Popov, Vladimir; Degtiarenko, Pavel] Thomas Jefferson Natl Accelerator Facil, Radiat Control Dept, Newport News, VA 23606 USA.
RP Popov, V (reprint author), Thomas Jefferson Natl Accelerator Facil, Radiat Control Dept, 12050 Jefferson Ave, Newport News, VA 23606 USA.
EM popov@jlab.org
NR 3
TC 0
Z9 0
U1 0
U2 2
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1082-3654
BN 978-1-4673-0120-6
J9 IEEE NUCL SCI CONF R
PY 2011
BP 336
EP 338
PG 3
WC Engineering, Electrical & Electronic; Physics, Applied; Imaging Science
& Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging
SC Engineering; Physics; Imaging Science & Photographic Technology;
Radiology, Nuclear Medicine & Medical Imaging
GA BAM64
UT WOS:000304755600071
ER
PT S
AU Carini, GA
Kuczewski, AJ
Siddons, DP
AF Carini, G. A.
Kuczewski, A. J.
Siddons, D. P.
GP IEEE
TI Radiation tolerance investigation of XAMPS detectors
SO 2011 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE
(NSS/MIC)
SE IEEE Nuclear Science Symposium Conference Record
LA English
DT Proceedings Paper
CT IEEE Nuclear Science Symposium/Medical Imaging Conference (NSS/MIC)/18th
International Workshop on Room-Temperature Semiconductor X-Ray and
Gamma-Ray Detectors
CY OCT 23-29, 2011
CL Valencia, SPAIN
SP IEEE, Inst Elect & Elect Engineers Nucl & Plasma Sci Soc (IEEE NPSS)
ID HIGH-RESISTIVITY SILICON
AB Tolerance of XAMPS detectors to x-ray photons was investigated at the National Synchrotron Light Source. Two experiments were carried out: first JFETs with the same characteristics of the in pixel transistor were irradiated; then the radiation hardness of a 64x64-pixel detector was investigated. An increase of leakage current was observed and significantly reduced after a very low temperature forming gas annealing. These results confirm that this detector is suitable for application at IV generation light sources.
C1 [Carini, G. A.] SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA.
[Kuczewski, A. J.; Siddons, D. P.] Brookhaven Natl Lab, Upton, NY 11973 USA.
RP Carini, GA (reprint author), SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA.
EM carini@slac.stanford.edu; kuczewski@bnl.gov; siddons@bnl.gov
FU U.S. Department of Energy, Office of Science, Office of Basic Energy
Sciences [DE-AC02-98CH I 0886]
FX Use of the National Synchrotron Light Source, Brookhaven National
Laboratory, was supported by the U.S. Department of Energy, Office of
Science, Office of Basic Energy Sciences, under Contract No.
DE-AC02-98CH I 0886.
NR 9
TC 0
Z9 0
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1082-3654
BN 978-1-4673-0120-6
J9 IEEE NUCL SCI CONF R
PY 2011
BP 474
EP 476
PG 3
WC Engineering, Electrical & Electronic; Physics, Applied; Imaging Science
& Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging
SC Engineering; Physics; Imaging Science & Photographic Technology;
Radiology, Nuclear Medicine & Medical Imaging
GA BAM64
UT WOS:000304755600101
ER
PT S
AU Terry, JR
Distel, JR
Kippen, RM
Schirato, R
Wallace, MS
AF Terry, J. Russell
Distel, James R.
Kippen, R. Marc
Schirato, R.
Wallace, Mark S.
GP IEEE
TI Evaluation of COTS Silicon Carbide Photodiodes for a Radiation-Hard,
Low-Energy X-Ray Spectrometer
SO 2011 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE
(NSS/MIC)
SE IEEE Nuclear Science Symposium Conference Record
LA English
DT Proceedings Paper
CT IEEE Nuclear Science Symposium/Medical Imaging Conference (NSS/MIC)/18th
International Workshop on Room-Temperature Semiconductor X-Ray and
Gamma-Ray Detectors
CY OCT 23-29, 2011
CL Valencia, SPAIN
SP IEEE, Inst Elect & Elect Engineers Nucl & Plasma Sci Soc (IEEE NPSS)
AB Wide band-gap semiconducting materials such as silicon carbide (SiC) are attractive alternatives for radiation detection in more rugged environments due to low leakage currents, superior radiation hardness, and temperature insensitivity. However, the development of these technologies has been hindered by serious materials problems that restrict the quality and size of detector grade crystals. Recent developments in epitaxial growth of thin crystals on a substrate are yielding detector-grade material of reasonable dimension. While applications for ionizing radiation detectors are still limited primarily to small academic and R&D ventures, an active market exists for very thin epitaxial SiC photodiodes for the purpose of detecting UV light in high-temperature environments. The purpose of this project is to evaluate the utility of these commercially available SiC UV photodiodes for the purpose of detection and measurement of low-energy x-rays. We present results from bench-top electronic characterization, radioactive source measurements, x-ray source measurements at Los Alamos National Lab, and responsivity measurements performed at the National Synchrotron Light Source at Brookhaven National Lab.
C1 [Terry, J. Russell; Distel, James R.; Kippen, R. Marc; Schirato, R.; Wallace, Mark S.] Los Alamos Natl Lab, Space Sci & Applicat Grp ISR 1, Los Alamos, NM 87545 USA.
RP Terry, JR (reprint author), Los Alamos Natl Lab, Space Sci & Applicat Grp ISR 1, Los Alamos, NM 87545 USA.
NR 4
TC 2
Z9 2
U1 0
U2 2
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1082-3654
BN 978-1-4673-0120-6
J9 IEEE NUCL SCI CONF R
PY 2011
BP 485
EP 488
PG 4
WC Engineering, Electrical & Electronic; Physics, Applied; Imaging Science
& Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging
SC Engineering; Physics; Imaging Science & Photographic Technology;
Radiology, Nuclear Medicine & Medical Imaging
GA BAM64
UT WOS:000304755600104
ER
PT S
AU Mazzillo, M
Abbisso, S
Condorelli, G
Sanfilippo, D
Valvo, G
Carbone, B
Pilana, A
Fallica, G
Ronzhin, A
Los, S
Zatserklyaniy, A
Ramberg, E
AF Mazzillo, Massimo
Abbisso, Salvatore
Condorelli, Giovanni
Sanfilippo, Delfo
Valvo, Giusy
Carbone, Beatrice
Pilana, Angelo
Fallica, Giorgio
Ronzhin, Anatoly
Los, Sergey
Zatserklyaniy, Andriy
Ramberg, Erik
GP IEEE
TI Enhanced Blue-Light Sensitivity P on N Silicon Photomultipliers
SO 2011 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE
(NSS/MIC)
SE IEEE Nuclear Science Symposium Conference Record
LA English
DT Proceedings Paper
CT IEEE Nuclear Science Symposium/Medical Imaging Conference (NSS/MIC)/18th
International Workshop on Room-Temperature Semiconductor X-Ray and
Gamma-Ray Detectors
CY OCT 23-29, 2011
CL Valencia, SPAIN
SP IEEE, Inst Elect & Elect Engineers Nucl & Plasma Sci Soc (IEEE NPSS)
ID DETECTION EFFICIENCY; STMICROELECTRONICS
AB Silicon Photomultipliers (SiPMs) have known a fast development in recent years, due to their excellent single photon detection capability and very fast timing response. In this paper we present the results of the electro-optical characterization performed on the first STMicroelectronics P on N SiPMs prototypes properly designed for their possible application in Positron Emission Tomography (PET). We will show that the performances of the new devices are extremely promising in terms of high photon detection efficiency and fast timing response in blue wavelength range.
C1 [Mazzillo, Massimo; Abbisso, Salvatore; Condorelli, Giovanni; Sanfilippo, Delfo; Valvo, Giusy; Carbone, Beatrice; Pilana, Angelo; Fallica, Giorgio] STMicroelectronics, IMS, R&D, I-95121 Catania, Italy.
[Ronzhin, Anatoly; Los, Sergey; Ramberg, Erik] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
[Zatserklyaniy, Andriy] Univ Puerto Rico, Mayaguez, PR USA.
RP Mazzillo, M (reprint author), STMicroelectronics, IMS, R&D, I-95121 Catania, Italy.
EM massimo.mazzillo@st.com; ronzhin@fnal.gov; zatserkl@fnal.gov
NR 12
TC 3
Z9 3
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1082-3654
BN 978-1-4673-0120-6
J9 IEEE NUCL SCI CONF R
PY 2011
BP 538
EP 543
PG 6
WC Engineering, Electrical & Electronic; Physics, Applied; Imaging Science
& Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging
SC Engineering; Physics; Imaging Science & Photographic Technology;
Radiology, Nuclear Medicine & Medical Imaging
GA BAM64
UT WOS:000304755600114
ER
PT S
AU Marleau, P
Brennan, J
Brubaker, E
Gerling, M
Nowack, A
Schuster, P
Steele, J
AF Marleau, Peter
Brennan, James
Brubaker, Erik
Gerling, Mark
Nowack, Aaron
Schuster, Patricia
Steele, John
GP IEEE
TI Time Encoded Fast Neutron/Gamma Imager for Large Standoff SNM Detection
SO 2011 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE
(NSS/MIC)
SE IEEE Nuclear Science Symposium Conference Record
LA English
DT Proceedings Paper
CT IEEE Nuclear Science Symposium/Medical Imaging Conference (NSS/MIC)/18th
International Workshop on Room-Temperature Semiconductor X-Ray and
Gamma-Ray Detectors
CY OCT 23-29, 2011
CL Valencia, SPAIN
SP IEEE, Inst Elect & Elect Engineers Nucl & Plasma Sci Soc (IEEE NPSS)
AB Passive detection of special nuclear material (SNM) at long range or under heavy shielding can only be directly achieved by observing the penetrating neutral particles that it emits: gamma rays and neutrons in the MeV energy range. The ultimate SNM standoff detector system would have sensitivity to both gamma and neutron radiation, a large area and high efficiency to capture as many signal particles as possible, and good discrimination against background particles via directional and energy information. We are exploring the use of time-modulated collimators that may lead to practical gamma-neutron imaging detector systems that are highly efficient with the potential to exhibit simultaneously high angular and energy resolution. We will present results from a large standoff SNM detection demonstration using a prototype high sensitivity time encoded modulation imager.
C1 [Marleau, Peter; Brennan, James; Brubaker, Erik; Gerling, Mark; Nowack, Aaron; Schuster, Patricia; Steele, John] Sandia Natl Labs, Livermore, CA 94550 USA.
RP Marleau, P (reprint author), Sandia Natl Labs, Livermore, CA 94550 USA.
NR 10
TC 4
Z9 4
U1 1
U2 3
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1082-3654
BN 978-1-4673-0120-6
J9 IEEE NUCL SCI CONF R
PY 2011
BP 591
EP 595
PG 5
WC Engineering, Electrical & Electronic; Physics, Applied; Imaging Science
& Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging
SC Engineering; Physics; Imaging Science & Photographic Technology;
Radiology, Nuclear Medicine & Medical Imaging
GA BAM64
UT WOS:000304755600124
ER
PT S
AU Zimmermann, S
Anderson, JT
Doering, D
Joseph, J
Lionberger, C
Stezelberger, T
Yaver, H
AF Zimmermann, Sergio
Anderson, John T.
Doering, Dionisio
Joseph, John
Lionberger, Carl
Stezelberger, Thorsten
Yaver, Harold
GP IEEE
TI Implementation and Performance of the Electronics and Computing System
of the Gamma Ray Energy Tracking In-Beam Nuclear Array (GRETINA)
SO 2011 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE
(NSS/MIC)
SE IEEE Nuclear Science Symposium Conference Record
LA English
DT Proceedings Paper
CT IEEE Nuclear Science Symposium/Medical Imaging Conference (NSS/MIC)/18th
International Workshop on Room-Temperature Semiconductor X-Ray and
Gamma-Ray Detectors
CY OCT 23-29, 2011
CL Valencia, SPAIN
SP IEEE, Inst Elect & Elect Engineers Nucl & Plasma Sci Soc (IEEE NPSS)
AB The Gamma Ray Energy Tracking In-Beam Nuclear Array (GRETINA), a germanium detector system capable of measuring energy and position (within better than 2mm rms) of gamma-ray interaction points and tracking multiple gamma-ray interactions, has been built. GRETINA is composed of seven detector modules, each with four highly pure germanium crystals. Four custom designed electronics support the operation of the detectors: Digitizer/Digital Signal Processing (DSP), Trigger/Timing, Breakout Chassis and the Detector Interface Box. The Digitizer/DSP converts the analog information with 14-bit analog to digital converters operating at 100 MS/s, and digitally processes the data to determine the energy and timing information of the gamma interactions within a crystal. The computing system is composed of VME readout CPUs running VxWorks, which communicate with 62 dual-processor farm (each processor with four cores) through a 10 Gb/s Ethernet switch. The CPUs read out the digitizer/DSPs and send the data to the farm. The processors compute the position and track of the interactions of the gamma-ray inside the crystals. The processor farm is capable of processing in real-time the position of 20,000 gamma-ray/s. In this paper we will present the details of the implementation and performance of the electronics and computing system of GRETINA.
C1 [Zimmermann, Sergio; Doering, Dionisio; Joseph, John; Lionberger, Carl; Stezelberger, Thorsten; Yaver, Harold] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Anderson, John T.] Argonne Natl Lab, Argonne, IL 60439 USA.
RP Zimmermann, S (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
EM szimmermann@lbl.gov
FU U.S. Department of Energy [DE-AC02-05CH11231]
FX Manuscript received November 21, 2011; revised May 08, 2012; accepted
May 27, 2012. Date of publication August 27, 2012; date of current
version October 09, 2012. This work was supported by the Director,
Office of Science of the U.S. Department of Energy under Contract
DE-AC02-05CH11231.
NR 8
TC 1
Z9 1
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1082-3654
BN 978-1-4673-0120-6
J9 IEEE NUCL SCI CONF R
PY 2011
BP 596
EP 601
PG 6
WC Engineering, Electrical & Electronic; Physics, Applied; Imaging Science
& Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging
SC Engineering; Physics; Imaging Science & Photographic Technology;
Radiology, Nuclear Medicine & Medical Imaging
GA BAM64
UT WOS:000304755600125
ER
PT S
AU Purschke, ML
Budassi, M
Cao, T
Fried, J
Gualtieri, E
Junnarkar, SS
Karp, JS
Maramraju, SH
O'Connor, P
Pratte, JP
Ravindranath, B
Schlyer, D
Stoll, SP
Vaska, P
Woody, C
AF Purschke, Martin L.
Budassi, M.
Cao, T.
Fried, J.
Gualtieri, E.
Junnarkar, S. S.
Karp, J. S.
Maramraju, S. -H.
O'Connor, P.
Pratte, J. -P.
Ravindranath, B.
Schlyer, D.
Stoll, S. P.
Vaska, P.
Woody, C.
GP IEEE
TI Readout Technologies for the BNL-UPenn MRI-Compatible PET Scanner for
Rodents
SO 2011 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE
(NSS/MIC)
SE IEEE Nuclear Science Symposium Conference Record
LA English
DT Proceedings Paper
CT IEEE Nuclear Science Symposium/Medical Imaging Conference (NSS/MIC)/18th
International Workshop on Room-Temperature Semiconductor X-Ray and
Gamma-Ray Detectors
CY OCT 23-29, 2011
CL Valencia, SPAIN
SP IEEE, Inst Elect & Elect Engineers Nucl & Plasma Sci Soc (IEEE NPSS)
AB We describe the prototype of a full-body PET scanner for rats that is compatible with a 9.4 T MRI system. The detector consists of 96 PET detector blocks in a cylindrical arrangement. In this paper we concentrate on a new readout technology, which takes advantage of the fact that optical fibers are insensitive to electromagnetic interference. The data are formatted in a FPGA on the motherboard and sent to a data acquisition computer through standard Gigabit Ethernet connections. We will describe the technology chosen for the system, and introduce the data acquisition adapted for the readout of the data.
C1 [Purschke, Martin L.; Fried, J.; O'Connor, P.; Schlyer, D.; Stoll, S. P.; Vaska, P.; Woody, C.] Brookhaven Natl Lab, Upton, NY 11973 USA.
[Gualtieri, E.] Univ Penn, Philadelphia, PA 19104 USA.
[Pratte, J. -P.] Univ Sherbrooke, Sherbrooke, PQ J1K 2R1, Canada.
[Budassi, M.; Maramraju, S. -H.] Oxford Brookes Univ, Oxford OX3 0BP, England.
RP Purschke, ML (reprint author), Brookhaven Natl Lab, Upton, NY 11973 USA.
NR 6
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1082-3654
BN 978-1-4673-0120-6
J9 IEEE NUCL SCI CONF R
PY 2011
BP 617
EP 620
PG 4
WC Engineering, Electrical & Electronic; Physics, Applied; Imaging Science
& Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging
SC Engineering; Physics; Imaging Science & Photographic Technology;
Radiology, Nuclear Medicine & Medical Imaging
GA BAM64
UT WOS:000304755600129
ER
PT S
AU Baumbaugh, A
Carini, G
Deptuch, G
Grybos, P
Hoff, J
Maj, P
Siddons, P
Szczygiel, R
Trimpl, M
Yarema, R
AF Baumbaugh, A.
Carini, G.
Deptuch, G.
Grybos, P.
Hoff, J.
Maj, P.
Siddons, P.
Szczygiel, R.
Trimpl, M.
Yarema, R.
GP IEEE
TI Analysis of Full Charge Reconstruction Algorithms for X-Ray Pixelated
Detectors
SO 2011 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE
(NSS/MIC)
SE IEEE Nuclear Science Symposium Conference Record
LA English
DT Proceedings Paper
CT IEEE Nuclear Science Symposium/Medical Imaging Conference (NSS/MIC)/18th
International Workshop on Room-Temperature Semiconductor X-Ray and
Gamma-Ray Detectors
CY OCT 23-29, 2011
CL Valencia, SPAIN
SP IEEE, Inst Elect & Elect Engineers Nucl & Plasma Sci Soc (IEEE NPSS)
AB Existence of the natural diffusive spread of charge carriers on the course of their drift towards collecting electrodes in planar, segmented detectors results in a division of the original cloud of carriers between neighboring channels. This paper presents the analysis of algorithms, implementable with reasonable circuit resources, whose task is to prevent degradation of the detective quantum efficiency in highly granular, digital pixel detectors. The immediate motivation of the work is a photon science application requesting simultaneous timing spectroscopy and 2D position sensitivity. Leading edge discrimination, provided it can be freed from uncertainties associated with the charge sharing, is used for timing the events. Analyzed solutions can naturally be extended to the amplitude spectroscopy with pixel detectors.
C1 [Baumbaugh, A.; Deptuch, G.; Hoff, J.; Trimpl, M.; Yarema, R.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
RP Baumbaugh, A (reprint author), Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA.
EM baumbaugh@fnal.gov; carini@slac.stanford.edu; deptuch@fnal.gov;
pgrybos@agh.edu.pl; jimhoff@fnal.gov; piotr.maj@agh.edu.pl;
siddons@bnl.gov; robert.szczygiel@agh.edu.pl; trimpl@fnal.gov;
yarema@fnal.gov
RI Szczygiel, Robert/B-5662-2011; Maj, Piotr/C-9431-2013; Maj,
Piotr/H-1069-2014
NR 3
TC 10
Z9 10
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1082-3654
BN 978-1-4673-0120-6
J9 IEEE NUCL SCI CONF R
PY 2011
BP 660
EP 667
PG 8
WC Engineering, Electrical & Electronic; Physics, Applied; Imaging Science
& Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging
SC Engineering; Physics; Imaging Science & Photographic Technology;
Radiology, Nuclear Medicine & Medical Imaging
GA BAM64
UT WOS:000304755600137
ER
PT S
AU Pangaud, P
Arutinov, D
Barbero, M
Breugnon, P
Chantepie, B
Clemens, JC
Fei, R
Fougeron, D
Garcia-Sciveres, M
Godiot, S
Hemperek, T
Karagounis, M
Kruger, H
Mekkaoui, A
Perrot, L
Rozanov, A
Wermes, N
AF Pangaud, P.
Arutinov, D.
Barbero, M.
Breugnon, P.
Chantepie, B.
Clemens, J. C.
Fei, R.
Fougeron, D.
Garcia-Sciveres, M.
Godiot, S.
Hemperek, T.
Karagounis, M.
Kruger, H.
Mekkaoui, A.
Perrot, L.
Rozanov, A.
Wermes, N.
GP IEEE
TI A Tezzaron-Chartered 3D-IC electronic for SLHC/ATLAS hybrid pixels
detectors Test Results and Irradiations Performance
SO 2011 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE
(NSS/MIC)
SE IEEE Nuclear Science Symposium Conference Record
LA English
DT Proceedings Paper
CT IEEE Nuclear Science Symposium/Medical Imaging Conference (NSS/MIC)/18th
International Workshop on Room-Temperature Semiconductor X-Ray and
Gamma-Ray Detectors
CY OCT 23-29, 2011
CL Valencia, SPAIN
SP IEEE, Inst Elect & Elect Engineers Nucl & Plasma Sci Soc (IEEE NPSS)
ID INTEGRATED-CIRCUITS
AB The ATLAS pixel collaboration has started in 2008 a R&D program to use the latest advances in 3-D electronics technology in order to develop a new Front-End (FE) chip for a vertex detector for High Energy Physics (HEP). This program using the commercial Tezzaron-Chartered 0.13 mu m LP technology should be able to fulfill the requirements imposed by the ten times higher luminosity given by the High Luminosity LHC accelerator. The FE-TC4-P1 is a hybrid pixel read-out chip realized by the first MPW for HEP. This three dimensional chip includes an analog part called FE-TC4-AE and two digital parts called FE-TC4-DS and FE-TC4-DC. At the same time, several prototypes were realized in Chartered 0.13 mu m LP technology, in order to disentangle from effects induced by 3D architecture. These FE-C4-P1,2,3 prototypes have proved a good radiation hardness up to 400Mrads as well as good performances. This paper presents results from the FE-TC4-P1 chip which has been recently tested and irradiated.
C1 [Pangaud, P.; Breugnon, P.; Chantepie, B.; Clemens, J. C.; Fei, R.; Fougeron, D.; Godiot, S.; Perrot, L.; Rozanov, A.] CNRS, IN2P3, Ctr Phys Particules Marseille, Marseille, France.
[Hemperek, T.; Karagounis, M.; Kruger, H.; Mekkaoui, A.] Univ Bonn, Bonn, Germany.
[Garcia-Sciveres, M.; Mekkaoui, A.] Lawrence Berkeley Natl Lab, Berkeley, CA USA.
RP Pangaud, P (reprint author), CNRS, IN2P3, Ctr Phys Particules Marseille, Marseille, France.
EM pangaud@cppm.in2p3.fr
FU French National Agency for Research (ANR) [ANR-08 BLAN-073]
FX This work was supported by the French National Agency for Research (ANR)
under Grant No. ANR-08 BLAN-073.
NR 5
TC 1
Z9 1
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1082-3654
BN 978-1-4673-0120-6
J9 IEEE NUCL SCI CONF R
PY 2011
BP 682
EP 684
PG 3
WC Engineering, Electrical & Electronic; Physics, Applied; Imaging Science
& Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging
SC Engineering; Physics; Imaging Science & Photographic Technology;
Radiology, Nuclear Medicine & Medical Imaging
GA BAM64
UT WOS:000304755600141
ER
PT S
AU Hoff, JR
Arora, R
Cressler, JD
Deptuch, GW
Gui, P
Lourenco, NE
Wu, G
Yarema, RJ
AF Hoff, J. R.
Arora, R.
Cressler, J. D.
Deptuch, G. W.
Gui, P.
Lourenco, N. E.
Wu, G.
Yarema, R. J.
GP IEEE
TI Lifetime Studies of 130nm nMOS Transistors Intended for Long-Duration,
Cryogenic High-Energy Physics Experiments
SO 2011 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE
(NSS/MIC)
SE IEEE Nuclear Science Symposium Conference Record
LA English
DT Proceedings Paper
CT IEEE Nuclear Science Symposium/Medical Imaging Conference (NSS/MIC)/18th
International Workshop on Room-Temperature Semiconductor X-Ray and
Gamma-Ray Detectors
CY OCT 23-29, 2011
CL Valencia, SPAIN
SP IEEE, Inst Elect & Elect Engineers Nucl & Plasma Sci Soc (IEEE NPSS)
ID HOT-CARRIER DEGRADATION; PREDICTION; MODEL
AB Future neutrino physics experiments intend to use unprecedented volumes of liquid argon to fill a time projection chamber in an underground facility. To increase performance, integrated readout electronics should work inside the cryostat. Due to the scale and cost associated with evacuating and filling the cryostat, the electronics will be unserviceable for the duration of the experiment. Therefore, the lifetimes of these circuits must be well in excess of 20 years. The principle mechanism for lifetime degradation of MOSFET devices and circuits operating at cryogenic temperatures is via hot carrier degradation. Choosing a process technology that is, as much as possible, immune to such degradation and developing design techniques to avoid exposure to such damage are the goals. This requires careful investigation and a basic understanding of the mechanisms that underlie hot carrier degradation and the secondary effects they cause in circuits. In this work, commercially available 130nm nMOS transistors operating at cryogenic temperatures are investigated. The results show that the difference in lifetime for room temperature operation and cryogenic operation for this process are not great and the lifetimes at both 300K and at 77K can be projected to more than 20 years at the nominal voltage (1.5V) for this technology.
C1 [Hoff, J. R.; Deptuch, G. W.; Yarema, R. J.] Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA.
[Arora, R.; Cressler, J. D.; Lourenco, N. E.] Georgia Inst Technol, Atlanta, GA 30332 USA.
[Gui, P.; Wu, G.] Southem Methodist Univ, Dallas 75205, TX USA.
RP Hoff, JR (reprint author), Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA.
EM jimhoff@fnal.gov; cressler@ece.gatech.edu; deptuch@fnal.gov;
pgui@smu.edu; yarema@fnal.gov
FU Fermi Research Alliance; LLC [DE-AC02-07CHI1359]; United States
Department of Energy
FX This work was supported by Fermi Research Alliance, LLC under Contract
No. DE-AC02-07CHI1359 with the United States Department of Energy.
NR 14
TC 1
Z9 1
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1082-3654
BN 978-1-4673-0120-6
J9 IEEE NUCL SCI CONF R
PY 2011
BP 685
EP 693
PG 9
WC Engineering, Electrical & Electronic; Physics, Applied; Imaging Science
& Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging
SC Engineering; Physics; Imaging Science & Photographic Technology;
Radiology, Nuclear Medicine & Medical Imaging
GA BAM64
UT WOS:000304755600142
ER
PT S
AU Walder, JP
Denes, P
Grace, C
von der Lippe, H
Zheng, B
AF Walder, J. P.
Denes, Peter
Grace, Carl
von der Lippe, Henrik
Zheng, Bob
GP IEEE
TI A Fast Low Noise CMOS Charge Sensitive Preamplifier For Column Parallel
CCD Readout
SO 2011 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE
(NSS/MIC)
SE IEEE Nuclear Science Symposium Conference Record
LA English
DT Proceedings Paper
CT IEEE Nuclear Science Symposium/Medical Imaging Conference (NSS/MIC)/18th
International Workshop on Room-Temperature Semiconductor X-Ray and
Gamma-Ray Detectors
CY OCT 23-29, 2011
CL Valencia, SPAIN
SP IEEE, Inst Elect & Elect Engineers Nucl & Plasma Sci Soc (IEEE NPSS)
AB A fast, low noise charge sensitive preamplifier for column parallel CCD readout application is presented. This prototype has been implemented on a commercial CMOS 65nm process. This preamplifier consists of a two stage transconductance amplifier with capacitive feedback to accommodate two gain ranges and a second transconductance amplifier to reset the circuit. An equivalent noise charge of 37 electrons for a 100ns readout cycle time is achieved for a power consumption of 5mW. Novel design techniques used in this circuit will be presented in detail along with measurement results obtained on the prototype.
C1 [Walder, J. P.; Denes, Peter; Grace, Carl; von der Lippe, Henrik; Zheng, Bob] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
RP Walder, JP (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
EM jpwalder@lbl.gov
NR 3
TC 1
Z9 1
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1082-3654
BN 978-1-4673-0120-6
J9 IEEE NUCL SCI CONF R
PY 2011
BP 721
EP 724
PG 4
WC Engineering, Electrical & Electronic; Physics, Applied; Imaging Science
& Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging
SC Engineering; Physics; Imaging Science & Photographic Technology;
Radiology, Nuclear Medicine & Medical Imaging
GA BAM64
UT WOS:000304755600149
ER
PT S
AU Abusleme, A
Dragone, A
Haller, G
Wooley, BA
AF Abusleme, Angel
Dragone, Angelo
Haller, Gunther
Wooley, Bruce A.
GP IEEE
TI BeamCal Instrumentation IC: Design, Implementation and Test Results
SO 2011 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE
(NSS/MIC)
SE IEEE Nuclear Science Symposium Conference Record
LA English
DT Proceedings Paper
CT IEEE Nuclear Science Symposium/Medical Imaging Conference (NSS/MIC)/18th
International Workshop on Room-Temperature Semiconductor X-Ray and
Gamma-Ray Detectors
CY OCT 23-29, 2011
CL Valencia, SPAIN
SP IEEE, Inst Elect & Elect Engineers Nucl & Plasma Sci Soc (IEEE NPSS)
ID PARTICLE PHYSICS
AB The BeamCal detector, one of the calorimeters in the forward region of the International Linear Collider detector, will serve three purposes: ensure hermeticity of the detector for small polar angles, reduce the backscattering from pairs into the detector center, and provide a low-latency signal for beam diagnostics. The BeamCal specifications in terms of noise suppression, signal charge, pulse rate and occupancy pose unique challenges in the front-end and readout electronics design. The Bean - BeamCal Instrumentation IC - is a 32-channel front-end and readout IC that will address the BeamCal instrumentation requirements. By employing switched-capacitor filters and a slow reset-release technique, the Bean will process the signal charge at the International Linear Collider pulse rate. Each channel will have a 10-bit successive approximation analog-to-digital converter and digital memory for readout purposes. The Bean will also feature a fast feedback adder, capable of providing an 8-bit, low-latency output for beam diagnostic purposes. This work presents the design and characterization of the Bean prototype, a 3-channel IC that proves the principle of operation described.
C1 [Abusleme, Angel] Pontificia Univ Catolica Chile, Dept Elect Engn, Santiago, Chile.
[Dragone, Angelo; Haller, Gunther] Fermilab Natl Accelerator Lab, SLAC, Menlo Pk, CA 94025 USA.
[Wooley, Bruce A.] Stanford Univ, Dept Elect Engn, Stanford, CA 94305 USA.
RP Abusleme, A (reprint author), Pontificia Univ Catolica Chile, Dept Elect Engn, Santiago, Chile.
EM angel@ing.puc.cl; haller@slac.stanford.edu; wooley@par.stanford.edu
NR 9
TC 0
Z9 0
U1 0
U2 2
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1082-3654
BN 978-1-4673-0120-6
J9 IEEE NUCL SCI CONF R
PY 2011
BP 758
EP 765
PG 8
WC Engineering, Electrical & Electronic; Physics, Applied; Imaging Science
& Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging
SC Engineering; Physics; Imaging Science & Photographic Technology;
Radiology, Nuclear Medicine & Medical Imaging
GA BAM64
UT WOS:000304755600156
ER
PT S
AU Drake, G
Cundiff, T
De Lurgio, P
Henriques, A
Minashvili, I
Nemecek, S
Price, L
Proudfoot, J
Stanek, R
AF Drake, G.
Cundiff, T.
De Lurgio, P.
Henriques, A.
Minashvili, I.
Nemecek, S.
Price, L.
Proudfoot, J.
Stanek, R.
CA ATLAS Tile Calorimeter Syst
GP IEEE
TI An Upgraded Front-End Switching Power Supply Design for the ATLAS
TileCAL Detector of the LHC
SO 2011 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE
(NSS/MIC)
SE IEEE Nuclear Science Symposium Conference Record
LA English
DT Proceedings Paper
CT IEEE Nuclear Science Symposium/Medical Imaging Conference (NSS/MIC)/18th
International Workshop on Room-Temperature Semiconductor X-Ray and
Gamma-Ray Detectors
CY OCT 23-29, 2011
CL Valencia, SPAIN
SP IEEE, Inst Elect & Elect Engineers Nucl & Plasma Sci Soc (IEEE NPSS)
AB We present the design of an upgraded switching power supply brick for the front-end electronics of the ATLAS hadron tile calorimeter (TileCAL) at the LHC. The new design features significant improvement in noise, improved fault detection, and generally a more robust design, while retaining the compact size, water-cooling, output control, and monitoring features in this 300 KHz design. We discuss the improvements to the design, and the radiation testing that we have done to qualify the design. We also present our plans for the production of 2400 new bricks for installation on the detector in 2013.
C1 [Drake, G.; Cundiff, T.; De Lurgio, P.; Price, L.; Proudfoot, J.; Stanek, R.] Argonne Natl Lab, Argonne, IL 60439 USA.
[Henriques, A.] European Org Nucl Res, Geneva, Switzerland.
[Minashvili, I.] Nucl Res Inst, Dubna, Russia.
[Nemecek, S.] Acad Sci Czech Republic, Inst Phys, Prague, Czech Republic.
RP Drake, G (reprint author), Argonne Natl Lab, Argonne, IL 60439 USA.
EM drake@anl.gov
FU U.S. Department of Commerce [BS 123456]; U. S. DOE [DE-AC02-06CH 11357]
FX This work was supported in part by the U.S. Department of Commerce under
Grant No. BS 123456. The work at Argonne National Laboratory' is
supported under U. S. DOE contract no. DE-AC02-06CH 11357.
NR 9
TC 0
Z9 0
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1082-3654
BN 978-1-4673-0120-6
J9 IEEE NUCL SCI CONF R
PY 2011
BP 779
EP 786
PG 8
WC Engineering, Electrical & Electronic; Physics, Applied; Imaging Science
& Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging
SC Engineering; Physics; Imaging Science & Photographic Technology;
Radiology, Nuclear Medicine & Medical Imaging
GA BAM64
UT WOS:000304755600161
ER
PT S
AU Chichester, DL
Thompson, SJ
Seabury, EH
Clement, RRC
AF Chichester, David L.
Thompson, Scott J.
Seabury, Edward H.
Clement, Ryan R. C.
GP IEEE
TI Parametric Evaluation of Active Neutron Interrogation for the Detection
of Shielded Highly-Enriched Uranium in the Field
SO 2011 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE
(NSS/MIC)
SE IEEE Nuclear Science Symposium Conference Record
LA English
DT Proceedings Paper
CT IEEE Nuclear Science Symposium/Medical Imaging Conference (NSS/MIC)/18th
International Workshop on Room-Temperature Semiconductor X-Ray and
Gamma-Ray Detectors
CY OCT 23-29, 2011
CL Valencia, SPAIN
SP IEEE, Inst Elect & Elect Engineers Nucl & Plasma Sci Soc (IEEE NPSS)
ID FISSIONABLE MATERIAL
AB Parametric studies using numerical simulations are being performed to assess the performance capabilities and limits of active neutron interrogation for detecting shielded highly enriched uranium (HEU). Varying the shield material, HEU mass, HEU depth inside the shield, and interrogating neutron source energy, the simulations account for both neutron and photon emission signatures from the HEU with resolution in both energy and time. The results are processed to represent different irradiation timing schemes and several different classes of radiation detectors, and evaluated using a statistical approach considering signal intensity over background. This paper describes the details of the modeling campaign and some preliminary results, weighing the strengths of alternative measurement approaches for the different irradiation scenarios.
C1 [Chichester, David L.; Thompson, Scott J.; Seabury, Edward H.; Clement, Ryan R. C.] Idaho Natl Lab, Idaho Falls, ID 83415 USA.
RP Chichester, DL (reprint author), Idaho Natl Lab, Idaho Falls, ID 83415 USA.
EM david.chichester@inl.gov; scott.thompson@inl.gov;
edward.seabury@inl.gov; ryan.clement@inl.gov
NR 22
TC 3
Z9 3
U1 1
U2 3
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1082-3654
BN 978-1-4673-0120-6
J9 IEEE NUCL SCI CONF R
PY 2011
BP 964
EP 971
PG 8
WC Engineering, Electrical & Electronic; Physics, Applied; Imaging Science
& Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging
SC Engineering; Physics; Imaging Science & Photographic Technology;
Radiology, Nuclear Medicine & Medical Imaging
GA BAM64
UT WOS:000304755601040
ER
PT S
AU Erickson, AS
Lanza, RC
Hynes, MV
Blackburn, BW
Bernstein, A
Dazeley, S
AF Erickson, Anna S.
Lanza, Richard C.
Hynes, Michael V.
Blackburn, Brandon W.
Bernstein, Adam
Dazeley, Steven
GP IEEE
TI Cherenkov Counters for the Detection of Gamma Rays from Active
Interrogation
SO 2011 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE
(NSS/MIC)
SE IEEE Nuclear Science Symposium Conference Record
LA English
DT Proceedings Paper
CT IEEE Nuclear Science Symposium/Medical Imaging Conference (NSS/MIC)/18th
International Workshop on Room-Temperature Semiconductor X-Ray and
Gamma-Ray Detectors
CY OCT 23-29, 2011
CL Valencia, SPAIN
SP IEEE, Inst Elect & Elect Engineers Nucl & Plasma Sci Soc (IEEE NPSS)
ID REGION; WATER
AB Water-based Cherenkov counters are considered for remote detection of special nuclear materials with aid of active interrogation. We designed and manufactured a detector capable of gamma ray detection and demonstrated particle energy discrimination ability. Background reduction techniques based on energy threshold and photomultiplier tube multiplicity were implemented in particle detection. Both approaches resulted in a significant suppression of low-level background.
C1 [Erickson, Anna S.; Lanza, Richard C.] MIT, 77 Massachusetts Ave, Cambridge, MA 02139 USA.
[Erickson, Anna S.; Bernstein, Adam; Dazeley, Steven] Lawrence Livermore Natl Lab, Adv Detector Grp, Livermore, CA 94550 USA.
[Hynes, Michael V.; Blackburn, Brandon W.] Raytheon Corp, Integrated Def Syst, Tewksburg, MA USA.
RP Erickson, AS (reprint author), MIT, 77 Massachusetts Ave, Cambridge, MA 02139 USA.
EM erickson28@llnl.gov; lanza@mit.edu
FU NNSA SSGF Fellowship; U.S
FX A. S. Erickson was fully supported by NNSA SSGF Fellowship. This work
was supported in part by the U.S.
NR 6
TC 0
Z9 0
U1 0
U2 4
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1082-3654
BN 978-1-4673-0120-6
J9 IEEE NUCL SCI CONF R
PY 2011
BP 972
EP 975
PG 4
WC Engineering, Electrical & Electronic; Physics, Applied; Imaging Science
& Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging
SC Engineering; Physics; Imaging Science & Photographic Technology;
Radiology, Nuclear Medicine & Medical Imaging
GA BAM64
UT WOS:000304755601041
ER
PT S
AU Battaglia, M
Bisello, D
Celestre, R
Contarato, D
Denes, P
Giubilato, P
Mattiazzo, S
Pantano, D
Tindall, C
AF Battaglia, Marco
Bisello, Dario
Celestre, Richard
Contarato, Devis
Denes, Peter
Giubilato, Piero
Mattiazzo, Serena
Pantano, Devis
Tindall, Craig
GP IEEE
TI Characterisation of a Thin, Fully-Depleted, Back-Illuminated SOI Pixel
Sensor with Soft X-ray Radiation
SO 2011 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE
(NSS/MIC)
SE IEEE Nuclear Science Symposium Conference Record
LA English
DT Proceedings Paper
CT IEEE Nuclear Science Symposium/Medical Imaging Conference (NSS/MIC)/18th
International Workshop on Room-Temperature Semiconductor X-Ray and
Gamma-Ray Detectors
CY OCT 23-29, 2011
CL Valencia, SPAIN
SP IEEE, Inst Elect & Elect Engineers Nucl & Plasma Sci Soc (IEEE NPSS)
C1 [Battaglia, Marco] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Battaglia, Marco] Univ Calif Santa Cruz, Santa Cruz, CA 95064 USA.
RP Battaglia, M (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
EM MBattaglia@lbl.gov
FU U.S. Department [AC02-05CH11231]; INFN
FX This work was supported by the Director, Office of Science, of the U.S.
Department of Energy under Contract No.DE AC02-05CH11231 and by INFN,
Italy.
NR 8
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1082-3654
BN 978-1-4673-0120-6
J9 IEEE NUCL SCI CONF R
PY 2011
BP 1057
EP 1059
PG 3
WC Engineering, Electrical & Electronic; Physics, Applied; Imaging Science
& Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging
SC Engineering; Physics; Imaging Science & Photographic Technology;
Radiology, Nuclear Medicine & Medical Imaging
GA BAM64
UT WOS:000304755601055
ER
PT S
AU Genser, K
Para, A
Wenzel, H
AF Genser, Krzysztof
Para, Adam
Wenzel, Hans
GP IEEE
TI Very High Resolution Hadron Calorimetry
SO 2011 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE
(NSS/MIC)
SE IEEE Nuclear Science Symposium Conference Record
LA English
DT Proceedings Paper
CT IEEE Nuclear Science Symposium/Medical Imaging Conference (NSS/MIC)/18th
International Workshop on Room-Temperature Semiconductor X-Ray and
Gamma-Ray Detectors
CY OCT 23-29, 2011
CL Valencia, SPAIN
SP IEEE, Inst Elect & Elect Engineers Nucl & Plasma Sci Soc (IEEE NPSS)
AB Experiments at the next generation of High Energy Physics accelerators will pose particularly strong requirements on the performance of hadron calorimeters. Significant progress in understanding of the fundamental limitations of hadron calorimeters combined with the major technological advances in dense inorganic scintillators and compact photodetectors enables development of new concept of hadron calorimetry based on a total absorption homogeneous hadron calorimeter. The energy resolution of such a calorimeter may reach a level of 15%/root E, while the very fine granularity may offer further advantages for the detailed reconstruction of final states or the background rejection. Dual readout calorimeter utilizing the Cherenkov signals will provide very good timing information necessary for the background rejection at the Muon Collider and/or correct assignment of the observed signals to the corresponding bunch crossing at the CLIC collider.
C1 [Genser, Krzysztof; Para, Adam; Wenzel, Hans] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
RP Genser, K (reprint author), Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA.
EM para@fnal.gov
NR 0
TC 1
Z9 1
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1082-3654
BN 978-1-4673-0120-6
J9 IEEE NUCL SCI CONF R
PY 2011
BP 1177
EP 1182
PG 6
WC Engineering, Electrical & Electronic; Physics, Applied; Imaging Science
& Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging
SC Engineering; Physics; Imaging Science & Photographic Technology;
Radiology, Nuclear Medicine & Medical Imaging
GA BAM64
UT WOS:000304755601080
ER
PT S
AU Neff, S
Hauf, S
Lang, P
Roth, M
Gunther, M
Deppert, O
Hoffmann, DHH
Kuster, M
Pia, MG
Bell, ZW
AF Neff, S.
Hauf, S.
Lang, P.
Roth, M.
Guenther, M.
Deppert, O.
Hoffmann, D. H. H.
Kuster, M.
Pia, M. G.
Bell, Z. W.
GP IEEE
TI An activation experiment with laser-accelerated high-energy protons to
optimize the graded-z shield design for the IXO/ATHENA satellite
missions
SO 2011 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE
(NSS/MIC)
SE IEEE Nuclear Science Symposium Conference Record
LA English
DT Proceedings Paper
CT IEEE Nuclear Science Symposium/Medical Imaging Conference (NSS/MIC)/18th
International Workshop on Room-Temperature Semiconductor X-Ray and
Gamma-Ray Detectors
CY OCT 23-29, 2011
CL Valencia, SPAIN
SP IEEE, Inst Elect & Elect Engineers Nucl & Plasma Sci Soc (IEEE NPSS)
DE Geant4; Laser-accelerated protons; ATHENA
AB The International X-ray Observatory (IXO) and ATHENA are next-generation X-ray satellites that are currently being designed as a successors of XMM-Newton. To ensure a low background for the detectors, the satellite shielding is being optimized with the Monte Carlo code Geant4. The satellite will be impacted by highly energetic protons which can activate the satellite shielding and thus cause additional background signals. Geant4 contains algorithms to simulate the activation and subsequent decay of materials, but the part of the code responsible for modeling these processes has not been thoroughly checked yet and first experiments have shown significant differences between the measurements and the corresponding simulations. To address these modeling issues, we have carried out activation experiments with laser-accelerated protons using the PHELIX high-power laser at the Gesellschaft fur Schwerionenforschung in Darmstadt. In these experiments we have created a proton beam via target normal sheath acceleration. The energy spectrum of these protons is similar to typical proton spectra of solar flares and the cosmic background, both in maximum energy and their energy distribution. With the PHELIX laser, we have focused a 100 J, 1 ps pulse onto a primary target, creating protons beams with maximum energies of 17 MeV. We have used these laser-accelerated protons to activate target foils and subsequently measured the gamma spectra of these foils with high-purity germanium detectors; the proton energy spectrum has been measured with radiochromic films. We are currently working on analyzing the data and will use the results to validate physics models of activation processes and radioactive decay processes in Geant4.
C1 [Neff, S.; Hauf, S.; Lang, P.; Roth, M.; Guenther, M.; Deppert, O.; Hoffmann, D. H. H.] Tech Univ Darmstadt, Darmstadt, Germany.
[Kuster, M.] European XFEL, Hamburg, Germany.
[Pia, M. G.] INFN Sezione, Genoa, Italy.
[Bell, Z. W.] Oak Ridge Natl Lab, Oak Ridge, TN USA.
RP Neff, S (reprint author), Tech Univ Darmstadt, Darmstadt, Germany.
EM neff.stephan@skmail.ikp.physik.tu-darmstadt.de
FU DLR [50 QR 0902]
FX This work was supported by DLR under grant number 50 QR 0902
NR 2
TC 0
Z9 0
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1082-3654
BN 978-1-4673-0120-6
J9 IEEE NUCL SCI CONF R
PY 2011
BP 1194
EP 1196
PG 3
WC Engineering, Electrical & Electronic; Physics, Applied; Imaging Science
& Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging
SC Engineering; Physics; Imaging Science & Photographic Technology;
Radiology, Nuclear Medicine & Medical Imaging
GA BAM64
UT WOS:000304755601083
ER
PT S
AU Vogel, JK
Pivovaroff, MJ
Nagarkar, VV
Kudrolli, H
Madsen, KK
Koglin, JE
Christensen, FE
Brejnholt, NF
AF Vogel, Julia K.
Pivovaroff, Michael J.
Nagarkar, Vivek V.
Kudrolli, Haris
Madsen, Kristin Kruse
Koglin, Jason E.
Christensen, Finn E.
Brejnholt, Nicolai F.
GP IEEE
TI Application of an EMCCD Camera for Calibration of Hard X-Ray Telescopes
SO 2011 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE
(NSS/MIC)
SE IEEE Nuclear Science Symposium Conference Record
LA English
DT Proceedings Paper
CT IEEE Nuclear Science Symposium/Medical Imaging Conference (NSS/MIC)/18th
International Workshop on Room-Temperature Semiconductor X-Ray and
Gamma-Ray Detectors
CY OCT 23-29, 2011
CL Valencia, SPAIN
SP IEEE, Inst Elect & Elect Engineers Nucl & Plasma Sci Soc (IEEE NPSS)
DE EMCCD; NuSTAR; hard x-ray mission; hard x-ray detectors; calibration;
scintillator; x-ray detectors
AB Recent technological innovations now make it feasible to construct hard x-ray telescopes for space-based astronomical missions. Focusing optics are capable of improving the sensitivity in the energy range above 10 keV by orders of magnitude compared to previously used instruments. The last decade has seen focusing optics developed for balloon experiments [1] and they will soon be implemented in approved space missions such as the Nuclear Spectroscopic Telescope Array (NuSTAR) [2] and ASTRO-H [3]. The full characterization of x-ray optics for astrophysical and solar imaging missions, including measurement of the point spread function (PSF) as well as scattering and reflectivity properties of substrate coatings, requires a very high spatial resolution, high sensitivity, photon counting and energy discriminating, large area detector. Novel back-thinned Electron Multiplying Charge-Coupled Devices (EMCCDs) [4] are highly suitable detectors for ground-based calibrations. Their chip can be optically coupled to a microcolumnar CsI(Tl) scintillator [5] via a fiberoptic taper. Not only does this device exhibit low noise and high spatial resolution inherent to CCDs, but the EMCCD is also able to handle high frame rates due to its controllable internal gain. Additionally, thick CsI(Tl) yields high detection efficiency for x-rays [6]. This type of detector has already proven to be a unique device very suitable for calibrations in astrophysics: such a camera was used to support the characterization of the performance for all NuSTAR optics [7]-[9]. Further optimization will enable similar cameras to be improved and used to calibrate x-ray telescopes for future space missions.
In this paper, we discuss the advantages of using an EMCCD to calibrate hard x-ray optics. We will illustrate the promising features of this detector solution using examples of data obtained during the ground calibration of the NuSTAR telescopes performed at Columbia University during 2010/2011. Finally, we give an outlook on ongoing development and optimizations, such as the use of single photon counting mode to enhance spectral resolution.
C1 [Vogel, Julia K.; Pivovaroff, Michael J.] Lawrence Livermore Natl Lab, Phys & Life Sci Dept, Livermore, CA USA.
[Nagarkar, Vivek V.; Kudrolli, Haris] Radiat Monitoring Dev RMD, Watertown, MA USA.
[Madsen, Kristin Kruse] Caltech Div Phys Math & Astronm, Pasadena, CA USA.
[Koglin, Jason E.] Columbia Univ Astrophy Lab, New York, NY USA.
[Christensen, Finn E.; Brejnholt, Nicolai F.] Tech Univ Denmark, Natl Space Inst DTU Space, Copenhagen, Denmark.
RP Vogel, JK (reprint author), Lawrence Livermore Natl Lab, Phys & Life Sci Dept, Livermore, CA USA.
EM vogel9@llnl.gov
RI Pivovaroff, Michael/M-7998-2014
OI Pivovaroff, Michael/0000-0001-6780-6816
FU U.S. Department of Energy by Lawrence Livermore National Laboratory
[DE-AC52-07NA27344]; NASA [NNXIICH32P]
FX This work was performed under the auspices of the U.S. Department of
Energy by Lawrence Livermore National Laboratory under Contract
DE-AC52-07NA27344. The support of the Laboratory Directed Research and
Development Program is gratefully acknowledged. We thank our colleagues
at NuSTAR for their support and cooperation and Columbia University for
hospitality. We also thank NASA for funding this research under grant
number NNXIICH32P
NR 14
TC 0
Z9 0
U1 1
U2 2
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1082-3654
BN 978-1-4673-0120-6
J9 IEEE NUCL SCI CONF R
PY 2011
BP 1204
EP 1212
PG 9
WC Engineering, Electrical & Electronic; Physics, Applied; Imaging Science
& Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging
SC Engineering; Physics; Imaging Science & Photographic Technology;
Radiology, Nuclear Medicine & Medical Imaging
GA BAM64
UT WOS:000304755601086
ER
PT S
AU Galloway, ML
Amman, M
Awadalla, S
Bindley, G
Boggs, SE
Chen, H
Chivers, D
Lee, JS
Luke, PN
Marthandam, P
Mihailescu, L
Negut, V
Priest, A
Taherion, S
Vetter, K
Zoglauer, A
AF Galloway, Michelle L.
Amman, Mark
Awadalla, Salah
Bindley, Glenn
Boggs, Steven E.
Chen, Henry
Chivers, Dan
Lee, Julie S.
Luke, Paul N.
Marthandam, Pramodha
Mihailescu, Lucian
Negut, Victor
Priest, Anders
Taherion, Saeid
Vetter, Kai
Zoglauer, Andreas
GP IEEE
TI Status of the High Efficiency Multimode Imager
SO 2011 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE
(NSS/MIC)
SE IEEE Nuclear Science Symposium Conference Record
LA English
DT Proceedings Paper
CT IEEE Nuclear Science Symposium/Medical Imaging Conference (NSS/MIC)/18th
International Workshop on Room-Temperature Semiconductor X-Ray and
Gamma-Ray Detectors
CY OCT 23-29, 2011
CL Valencia, SPAIN
SP IEEE, Inst Elect & Elect Engineers Nucl & Plasma Sci Soc (IEEE NPSS)
AB The High Efficiency Multimode Imager (HEMI) is an instrument to detect, locate, and spectroscopically characterize radioactive sources with gamma-ray emissions at long-range standoff distances. HEMI consists of modular cubic-centimeter coplanar-grid CdZnTe detector elements configured in a two-plane array that allows for both Compton scattering and coded aperture imaging. Measurements and simulations have been performed using a variety of radioactive sources at different positions with respect to a prototype HEMI array in order to demonstrate the source identification and localization capabilities of the system. This paper will provide an overview of the HEMI instrument as well as present results from simulations and measurements using the completed detector array.
C1 [Galloway, Michelle L.; Boggs, Steven E.; Zoglauer, Andreas] Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA.
[Amman, Mark; Chivers, Dan; Lee, Julie S.; Luke, Paul N.; Mihailescu, Lucian; Negut, Victor; Priest, Anders; Vetter, Kai] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Awadalla, Salah; Bindley, Glenn; Chen, Henry; Marthandam, Pramodha; Taherion, Saeid] Redlen Technol, Saanichton, BC V8M 0A5, Canada.
RP Galloway, ML (reprint author), Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA.
EM shell@ssl.berkeley.edu; Mark_Amman@lbl.gov
RI Boggs, Steven/E-4170-2015
OI Boggs, Steven/0000-0001-9567-4224
FU U.S. Department of Homeland Security, Domestic Nuclear Detection Office
[HSHQDC-08-X-00832]; U.S.Department of Energy, Office of Science
[DE-AC02-05CHII231]
FX This work was supported in part by the U.S. Department of Homeland
Security, Domestic Nuclear Detection Office, under Interagency Agreement
HSHQDC-08-X-00832 and by the U.S.Department of Energy, Office of
Science, under Contract DE-AC02-05CHII231.
NR 7
TC 1
Z9 1
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1082-3654
BN 978-1-4673-0120-6
J9 IEEE NUCL SCI CONF R
PY 2011
BP 1290
EP 1293
PG 4
WC Engineering, Electrical & Electronic; Physics, Applied; Imaging Science
& Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging
SC Engineering; Physics; Imaging Science & Photographic Technology;
Radiology, Nuclear Medicine & Medical Imaging
GA BAM64
UT WOS:000304755601102
ER
PT S
AU Aucott, TJ
Chivers, DH
Vetter, K
AF Aucott, Timothy J.
Chivers, Daniel H.
Vetter, Kai
GP IEEE
TI Proximity Localization with the Mobile Imaging and Spectroscopic Threat
Identification (MISTI) System
SO 2011 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE
(NSS/MIC)
SE IEEE Nuclear Science Symposium Conference Record
LA English
DT Proceedings Paper
CT IEEE Nuclear Science Symposium/Medical Imaging Conference (NSS/MIC)/18th
International Workshop on Room-Temperature Semiconductor X-Ray and
Gamma-Ray Detectors
CY OCT 23-29, 2011
CL Valencia, SPAIN
SP IEEE, Inst Elect & Elect Engineers Nucl & Plasma Sci Soc (IEEE NPSS)
AB The Mobile Imaging and Spectroscopic Threat Identification (MISTI) system was developed by the Naval Research Lab to perform stand-off gamma ray detection of potential threat sources. A new method for localizing sources at standoff using proximity techniques has been developed and demonstrated using the MISTI system.
C1 [Aucott, Timothy J.; Vetter, Kai] Univ Calif Berkeley, Dept Nucl Engn, Berkeley, CA 94720 USA.
[Chivers, Daniel H.; Vetter, Kai] Lawrence Berkeley Natl Lab, Appl Nucl Sci Grp, Berkeley, CA 94720 USA.
RP Aucott, TJ (reprint author), Univ Calif Berkeley, Dept Nucl Engn, Berkeley, CA 94720 USA.
EM tjaucott@berkeley.edu; chivers@berkeley.edu; kvetter@berkeley.edu
FU U.S. Department of Homeland Security [2008-DN-077-ARl-00 I-02]
FX This work was supported in part by the U.S. Department of Homeland
Security under Grant Award No. 2008-DN-077-ARl-00 I-02.
NR 3
TC 2
Z9 2
U1 0
U2 3
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1082-3654
BN 978-1-4673-0120-6
J9 IEEE NUCL SCI CONF R
PY 2011
BP 1303
EP 1305
PG 3
WC Engineering, Electrical & Electronic; Physics, Applied; Imaging Science
& Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging
SC Engineering; Physics; Imaging Science & Photographic Technology;
Radiology, Nuclear Medicine & Medical Imaging
GA BAM64
UT WOS:000304755601104
ER
PT S
AU Zoglauer, A
Galloway, M
Amman, M
Boggs, SE
AF Zoglauer, Andreas
Galloway, Michelle
Amman, Mark
Boggs, Steven E.
GP IEEE
TI Status of MEGA lib's Real-Time Analysis Tool Realta
SO 2011 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE
(NSS/MIC)
SE IEEE Nuclear Science Symposium Conference Record
LA English
DT Proceedings Paper
CT IEEE Nuclear Science Symposium/Medical Imaging Conference (NSS/MIC)/18th
International Workshop on Room-Temperature Semiconductor X-Ray and
Gamma-Ray Detectors
CY OCT 23-29, 2011
CL Valencia, SPAIN
SP IEEE, Inst Elect & Elect Engineers Nucl & Plasma Sci Soc (IEEE NPSS)
AB Realta is the real-time analyzer of MEGAlib, a software tool to simulate and analyze the data from soft-to-medium-energy gamma-ray detectors in space and on the ground. Realta encompasses the complete data analysis path which ranges from coincidence determination, Compton scatter and pair creation event reconstruction, event selection, image reconstruction to spectral identification. Realta is highly multi-threaded to fully utilize today's multi-core CPUs and to enable real-time processing. Taking advantage of the versatility of MEGAlib, Realta can be applied to a wide variety of gamma-ray detectors (pixel detectors, strip detectors) and measurement scenarios (near field 2D and 3D, far field). Realta and MEGAlib are open source, freely available, written in C++, and based on ROOT.
C1 [Zoglauer, Andreas; Galloway, Michelle; Boggs, Steven E.] Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA.
[Amman, Mark] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
RP Zoglauer, A (reprint author), Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA.
EM zog@ssl.berkeley.edu
RI Boggs, Steven/E-4170-2015
OI Boggs, Steven/0000-0001-9567-4224
FU U.S. Department of Homeland Security; Domestic Nuclear Detection Office
[HSHQDC-08-X-00832]; U.S. Department of Energy, Office of Science
[DE-AC02-05CH11231]
FX This work was supported in part by the U.S. Department of Homeland
Security, Domestic Nuclear Detection Office, under Interagency Agreement
HSHQDC-08-X-00832 and by the U.S. Department of Energy, Office of
Science, under Contract DE-AC02-05CH11231.
NR 8
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1082-3654
BN 978-1-4673-0120-6
J9 IEEE NUCL SCI CONF R
PY 2011
BP 1344
EP 1348
PG 5
WC Engineering, Electrical & Electronic; Physics, Applied; Imaging Science
& Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging
SC Engineering; Physics; Imaging Science & Photographic Technology;
Radiology, Nuclear Medicine & Medical Imaging
GA BAM64
UT WOS:000304755601113
ER
PT S
AU Goldschmidt, A
Miller, T
Nygren, D
Renner, J
Shuman, D
Spieler, H
White, J
AF Goldschmidt, Azriel
Miller, Tom
Nygren, David
Renner, Joshua
Shuman, Derek
Spieler, Helmuth
White, James
GP IEEE
TI High-Pressure Xenon Gas TPC for Neutrino-Less Double-Beta Decay in
Xe-136: Progress Toward the Goal of 1% FWHM Energy Resolution
SO 2011 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE
(NSS/MIC)
SE IEEE Nuclear Science Symposium Conference Record
LA English
DT Proceedings Paper
CT IEEE Nuclear Science Symposium/Medical Imaging Conference (NSS/MIC)/18th
International Workshop on Room-Temperature Semiconductor X-Ray and
Gamma-Ray Detectors
CY OCT 23-29, 2011
CL Valencia, SPAIN
SP IEEE, Inst Elect & Elect Engineers Nucl & Plasma Sci Soc (IEEE NPSS)
AB A high-pressure xenon gas (HPXe) TPC offers attractive possibilities in the search for neutrino-less double-beta decay in Xe-136. In the gas phase, near-intrinsic energy resolution is available from the ionization signal only, in contrast to the liquid phase which displays anomalously large fluctuations in the partition of energy between scintillation and ionization. In addition, events in the gas phase extend over several cm, permitting topological tests to discriminate efficiently against gamma-ray backgrounds. Our TPC exploits the nearly noiseless gain mechanism of electroluminescence to detect the signal. We report on progress with a small HPXe TPC that probes pressures up to 17 bars, also permitting variation of drift fields over an interesting range. The TPC provides excellent performance at the 662 keV gamma ray of Cs-137. This TPC was developed as part of the prototyping stage of the experiment NEXT (Neutrino Experiment with a Xenon TPC), to take place at Canfranc underground laboratory.
C1 [Renner, Joshua] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
[Goldschmidt, Azriel; Miller, Tom; Nygren, David; Shuman, Derek; Spieler, Helmuth] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[White, James] Texas A&M Univ, Dept Phys, College Stn, TX 77843 USA.
RP Renner, J (reprint author), Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
EM jrenner@lbl.gov
FU U.S. Department of Energy [DE-AC02-05CHI1231]; National Energy Research
Scientific Computing Center (NERSC) [DE-AC02-05CHI1231]; Department of
Energy National Nuclear Security Administration Stewardship Science
Graduate Fellowship [DEFC52-08NA28752]
FX This work was supported by the Director, Office of Science, Office of
Basic Energy Sciences, of the U.S. Department of Energy, and used the
High Performance Storage System (HPSS) of the National Energy Research
Scientific Computing Center (NERSC), supported by the Office of Science
of the U.S. Department of Energy, both under Contract No.
DE-AC02-05CHI1231. 1. Renner acknowledges the support of a Department of
Energy National Nuclear Security Administration Stewardship Science
Graduate Fellowship, grant number DEFC52- 08NA28752.
NR 8
TC 1
Z9 1
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1082-3654
BN 978-1-4673-0120-6
J9 IEEE NUCL SCI CONF R
PY 2011
BP 1409
EP 1412
PG 4
WC Engineering, Electrical & Electronic; Physics, Applied; Imaging Science
& Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging
SC Engineering; Physics; Imaging Science & Photographic Technology;
Radiology, Nuclear Medicine & Medical Imaging
GA BAM64
UT WOS:000304755601129
ER
PT S
AU Grace, CR
Walder, JP
von der Lippe, H
AF Grace, Carl R.
Walder, Jean-Pierre
von der Lippe, Henrik
GP IEEE
TI Multiplexed Oversampling Digitizer in 65 nm CMOS for Column-Parallel CCD
Readout
SO 2011 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE
(NSS/MIC)
SE IEEE Nuclear Science Symposium Conference Record
LA English
DT Proceedings Paper
CT IEEE Nuclear Science Symposium/Medical Imaging Conference (NSS/MIC)/18th
International Workshop on Room-Temperature Semiconductor X-Ray and
Gamma-Ray Detectors
CY OCT 23-29, 2011
CL Valencia, SPAIN
SP IEEE, Inst Elect & Elect Engineers Nucl & Plasma Sci Soc (IEEE NPSS)
ID TO-DIGITAL CONVERTER; CIRCUITS
AB A digitizer designed to read out column-parallel charge-coupled devices (CCDs) used for high-speed X-ray imaging is presented. The digitizer is included as part of the High-Speed Image Preprocessor with Oversampling (HIPPO) integrated circuit. The digitizer module comprises a multiplexed, oversampling, 12-bit, 80 MS/s pipelined Analog-to-Digital Converter (ADC) and a bank of four fast-settling sample-and-hold amplifiers to instrument four analog channels. The ADC multiplexes and oversamples to reduce its area to allow integration that is pitch-matched to the columns of the CCD. Novel design techniques are used to enable oversampling and multiplexing with a reduced power penalty. The ADC exhibits 188 mu V-rms noise which is less than 1 LSB at a 12-bit level. The prototype is implemented in a commercially available 65 nm CMOS process. The digitizer will lead to a proof-of-principle 2D 10 Gigapixel/s X-ray detector.
C1 [Grace, Carl R.; Walder, Jean-Pierre; von der Lippe, Henrik] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
RP Grace, CR (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
EM crgrace@lbl.gov
NR 8
TC 1
Z9 1
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1082-3654
BN 978-1-4673-0120-6
J9 IEEE NUCL SCI CONF R
PY 2011
BP 1435
EP 1440
PG 6
WC Engineering, Electrical & Electronic; Physics, Applied; Imaging Science
& Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging
SC Engineering; Physics; Imaging Science & Photographic Technology;
Radiology, Nuclear Medicine & Medical Imaging
GA BAM64
UT WOS:000304755601134
ER
PT S
AU Woody, C
Cheung, S
Haggerty, J
Kistenev, E
Stol, S
AF Woody, C.
Cheung, S.
Haggerty, J.
Kistenev, E.
Stol, S.
GP IEEE
TI Design Studies for a Compact Tungsten Scintillator Electromagnetic
Calorimeter
SO 2011 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE
(NSS/MIC)
SE IEEE Nuclear Science Symposium Conference Record
LA English
DT Proceedings Paper
CT IEEE Nuclear Science Symposium/Medical Imaging Conference (NSS/MIC)/18th
International Workshop on Room-Temperature Semiconductor X-Ray and
Gamma-Ray Detectors
CY OCT 23-29, 2011
CL Valencia, SPAIN
SP IEEE, Inst Elect & Elect Engineers Nucl & Plasma Sci Soc (IEEE NPSS)
AB Several designs are currently being investigated for a new type of compact electromagnetic calorimeter that should improve the performance and reduce the cost of electromagnetic calorimeters that are used in high multiplicity environments such as heavy ion collisions at RHIC or LHC. One is a so-called "optical accordion", which is based on the design of the liquid argon accordion calorimeter that has been used by ATLAS, but em ploys either scintillating fibers or scintillating plates with wavelength shifting fibers as the active medium, and accordion shaped tungsten plates as the absorber medium. The tungsten can be either a composite or sintered material that allows the formation of accordion shaped plates and has a density nearly that of pure tungsten. Another design is a projective "shashlik" which has a tower structure with alternating layers of tungsten absorber and scintillator plates read out with wavelength shifting fibers. Both designs can utilize a silicon photomultiplier or APD readout that would allow it to be used inside a magnetic field. Results are presented on the light output of various configurations of the optical accordion and projective shashlik, as well as from a Monte Carlo study of the expected performance of the design.
C1 [Woody, C.; Cheung, S.; Haggerty, J.; Kistenev, E.; Stol, S.] Brookhaven Natl Lab, Upton, NY 11973 USA.
RP Woody, C (reprint author), Brookhaven Natl Lab, Upton, NY 11973 USA.
NR 2
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1082-3654
BN 978-1-4673-0120-6
J9 IEEE NUCL SCI CONF R
PY 2011
BP 1471
EP 1475
PG 5
WC Engineering, Electrical & Electronic; Physics, Applied; Imaging Science
& Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging
SC Engineering; Physics; Imaging Science & Photographic Technology;
Radiology, Nuclear Medicine & Medical Imaging
GA BAM64
UT WOS:000304755601141
ER
PT S
AU Choong, WS
Rahman, MM
Holland, SE
AF Choong, Woon-Seng
Rahman, Muhammad M.
Holland, Stephen E.
GP IEEE
TI Back-Side Readout Silicon Photomultiplier
SO 2011 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE
(NSS/MIC)
SE IEEE Nuclear Science Symposium Conference Record
LA English
DT Proceedings Paper
CT IEEE Nuclear Science Symposium/Medical Imaging Conference (NSS/MIC)/18th
International Workshop on Room-Temperature Semiconductor X-Ray and
Gamma-Ray Detectors
CY OCT 23-29, 2011
CL Valencia, SPAIN
SP IEEE, Inst Elect & Elect Engineers Nucl & Plasma Sci Soc (IEEE NPSS)
ID DETECTORS
AB We present a novel structure for the back-side readout silicon photomultipler (SiPM). Current SiPMs are front-illuminated structures with front-side readout, which have relatively small geometric fill factor leading to degradation in their photon detection efficiency (PDE). Back-side readout devices will provide an advantageous solution to achieve high PDE. We designed and investigated a novel structure that would allow back-side readout while creating a region of high electric field optimized for avalanche breakdown. In addition, this structure has relatively high fill factor and also allow direct coupling of individual micro-cell of the SiPM to application-specific integrated circuits. We will discuss the performance that can be attained with this structure through device simulation and the process flow that can be used to fabricate this structure through process simulation.
C1 [Choong, Woon-Seng; Rahman, Muhammad M.; Holland, Stephen E.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
RP Choong, WS (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
EM wschoong@lbl.gov
RI Holland, Stephen/H-7890-2013
NR 12
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1082-3654
BN 978-1-4673-0120-6
J9 IEEE NUCL SCI CONF R
PY 2011
BP 1669
EP 1673
PG 5
WC Engineering, Electrical & Electronic; Physics, Applied; Imaging Science
& Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging
SC Engineering; Physics; Imaging Science & Photographic Technology;
Radiology, Nuclear Medicine & Medical Imaging
GA BAM64
UT WOS:000304755601184
ER
PT S
AU Chen, W
Carini, GA
De Geronimo, G
Gaskin, JA
Keister, JW
Li, S
Li, Z
Ramsey, BD
Siddons, DP
Smith, GC
Verbitskaya, E
AF Chen, W.
Carini, G. A.
De Geronimo, G.
Gaskin, J. A.
Keister, J. W.
Li, S.
Li, Z.
Ramsey, B. D.
Siddons, D. P.
Smith, G. C.
Verbitskaya, E.
GP IEEE
TI Radiation effects of n-type, low resistivity, spiral Silicon Drift
Detector hybrid systems
SO 2011 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE
(NSS/MIC)
SE IEEE Nuclear Science Symposium Conference Record
LA English
DT Proceedings Paper
CT IEEE Nuclear Science Symposium/Medical Imaging Conference (NSS/MIC)/18th
International Workshop on Room-Temperature Semiconductor X-Ray and
Gamma-Ray Detectors
CY OCT 23-29, 2011
CL Valencia, SPAIN
SP IEEE, Inst Elect & Elect Engineers Nucl & Plasma Sci Soc (IEEE NPSS)
ID X-RAY SPECTROMETERS; CMOS TECHNOLOGIES
AB We have developed a new thin-window, n-type, low-resistivity, spiral silicon drift detector (SDD) array - to be used as an extraterrestrial X-ray spectrometer (in varying environments) for NASA. To achieve low-energy response, a thin SDD entrance window was produced using a previously developed method. These thin-window devices were also produced on lower resistivity, thinner, n-type, silicon material, effectively ensuring their radiation hardness in anticipation of operation in potentially harsh radiation environments (such as found around the Jupiter system). Using the Indiana University Cyclotron Facility beam line RERS1, we irradiated a set of suitable diodes up to 5 Mrad and the latest iteration of our ASICs up to 12 Mrad. Then we irradiated two hybrid detectors consisting of newly, such-produced in-house (BNL) SDD chips bonded with ASICs with doses of 0.25 Mrad and 1 Mrad. Also we irradiated another hybrid detector consisting of previously produced (by KETEK) on n-type, high-resistivity SDD chip bonded with BNL's ASICs with a dose of 1 Mrad. The measurement results of radiated diodes (up to 5 Mrad), ASICs (up to 12 Mrad) and hybrid detectors (up to 1 Mrad) are presented here.
C1 [Chen, W.; Carini, G. A.; De Geronimo, G.; Keister, J. W.; Li, S.; Li, Z.; Siddons, D. P.; Smith, G. C.] Brookhaven Natl Lab, Upton, NY 11973 USA.
[Carini, G. A.] SLAC Natl Accelerator Lab, Brookhaven Natl Lab, Menlo Pk, CA USA.
[Gaskin, J. A.; Ramsey, B. D.] NASA, MSFC, Natl Space Sci & Technol Ctr, Huntsville, AL 35805 USA.
[Verbitskaya, E.] Inst Russian Acad Sci, Phys Tech, St Petersburg, Russia.
RP Chen, W (reprint author), Brookhaven Natl Lab, Upton, NY 11973 USA.
EM weichen@bnl.gov
RI Verbitskaya, Elena/D-1521-2014
FU U.S. Department of Energy [DE-AC02-98CHI0886]; NASA Research
Opportunities in Space and Earth Science; Planetary Instrument
Definition and Development Program
FX This work was supported in part by the U.S. Department of Energy under
Contract No. DE-AC02-98CHI0886. This work was also funded in-part by the
NASA Research Opportunities in Space and Earth Science, Planetary
Instrument Definition and Development Program.
NR 11
TC 1
Z9 1
U1 0
U2 2
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1082-3654
BN 978-1-4673-0120-6
J9 IEEE NUCL SCI CONF R
PY 2011
BP 1697
EP 1701
PG 5
WC Engineering, Electrical & Electronic; Physics, Applied; Imaging Science
& Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging
SC Engineering; Physics; Imaging Science & Photographic Technology;
Radiology, Nuclear Medicine & Medical Imaging
GA BAM64
UT WOS:000304755601189
ER
PT S
AU Kistenev, E
Li, Z
Sukhanov, A
AF Kistenev, E.
Li, Z.
Sukhanov, A.
GP IEEE
TI Novel Si sensors and readout for the compact high resolving power
electromagnetic calorimeter
SO 2011 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE
(NSS/MIC)
SE IEEE Nuclear Science Symposium Conference Record
LA English
DT Proceedings Paper
CT IEEE Nuclear Science Symposium/Medical Imaging Conference (NSS/MIC)/18th
International Workshop on Room-Temperature Semiconductor X-Ray and
Gamma-Ray Detectors
CY OCT 23-29, 2011
CL Valencia, SPAIN
SP IEEE, Inst Elect & Elect Engineers Nucl & Plasma Sci Soc (IEEE NPSS)
AB Calorimetry is the most important single tool for electron, photon, and neutral pion measurements and still drives overall detector dimensions and cost. We report here on a development of a new Si detector with "integrated" readout which helps to keep calorimeter dimensions and cost under control simultaneously enhancing the multi-photon resolving power and implementing energy flow measurement capability in Si based calorimeter. The prototype electromagnetic Si-W calorimeter with high resolving power (FOCal) was recently built and tested I with funding provided by PHENIX and is now being upgraded to combine precision position measurements with energy flow measuring functionality (StriPad and MiniPad-structured sensors in every sampling layer). New sensors are made in p+/n/n+ configuration with segmented side being the p+. All devices are read by the 128 channels SVX4 strip readout chip developed at FNAL. Depending on the sensor layout the 128 readout channels are either (I) shared between 16 pixelated pads (15x15 mm(2) each) overlapping with 112 pixelated strips (similar to 0.54x62mm(2) each), or connected to (2) 128 strips (similar to 0.47x62mm(2) each) or (3) 128 minipads (similar to 1.8x15mm(2) each) implemented on a 62x62mm(2) silicon substrate. The sensors are laminated with readout cards which carry one or two (dual gain readout) SVX4 chips to form pluggable micromodules. Thus built micromodules take only 2 mm of longitudinal space in detector leading to dramatic improvement in detector compactness (small Moliere radius). Novel sensors supported by low power, high density fully digital readout allows to upgrade silicon based calorimeter for energy flow measurements at essentially no extra cost.
C1 [Kistenev, E.; Li, Z.; Sukhanov, A.] USA, Brookhaven Natl Lab, Upton, NY 11973 USA.
RP Kistenev, E (reprint author), USA, Brookhaven Natl Lab, Upton, NY 11973 USA.
NR 3
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1082-3654
BN 978-1-4673-0120-6
J9 IEEE NUCL SCI CONF R
PY 2011
BP 1730
EP 1731
PG 2
WC Engineering, Electrical & Electronic; Physics, Applied; Imaging Science
& Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging
SC Engineering; Physics; Imaging Science & Photographic Technology;
Radiology, Nuclear Medicine & Medical Imaging
GA BAM64
UT WOS:000304755601196
ER
PT S
AU Wu, JY
Warner, A
AF Wu, Jinyuan
Warner, Arden
GP IEEE
TI A Novel Digitization Scheme with FPGA-based TDC for Beam Loss Monitors
Operating at Cryogenic Temperature
SO 2011 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE
(NSS/MIC)
SE IEEE Nuclear Science Symposium Conference Record
LA English
DT Proceedings Paper
CT IEEE Nuclear Science Symposium/Medical Imaging Conference (NSS/MIC)/18th
International Workshop on Room-Temperature Semiconductor X-Ray and
Gamma-Ray Detectors
CY OCT 23-29, 2011
CL Valencia, SPAIN
SP IEEE, Inst Elect & Elect Engineers Nucl & Plasma Sci Soc (IEEE NPSS)
DE Cryogenic Loss Monitors; Dark Current; TDC; FPGA Firmware
AB Recycling integrators are common current-to-frequency converting circuits for measurements of low current such as that produced by Fermilab's cryogenic ionization chambers. In typical digitization/readout schemes, a counter is utilized to accumulate the number of pulses generated by the recycling integrator to adequately digitize the total charge. In order to calculate current with reasonable resolution (e. g., 7-8 bits), hundreds of pulses must be accumulated which corresponds to a long sampling period, i.e., a very low sampling rate. In our new scheme, an FPGA-based Time-to-Digital Convertor (TDC) is utilized to measure the time intervals between the pulses output from the recycling integrator. Using this method, a sample point of the current can be made with good resolution (>10 bits) for each pulse. This effectively increases the sampling rates by hundreds of times for the same recycling integrator front-end electronics. This scheme provides a fast response to the beams loss and is potentially suitable for accelerator protection applications. Moreover, the method is also self-zero-suppressed, i.e., it produces more data when the beam loss is high while it produces significantly less data when the beam loss is low.
C1 [Wu, Jinyuan; Warner, Arden] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
RP Wu, JY (reprint author), Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA.
EM jywu168@fnal.gov
NR 4
TC 0
Z9 0
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1082-3654
BN 978-1-4673-0120-6
J9 IEEE NUCL SCI CONF R
PY 2011
BP 1829
EP 1832
PG 4
WC Engineering, Electrical & Electronic; Physics, Applied; Imaging Science
& Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging
SC Engineering; Physics; Imaging Science & Photographic Technology;
Radiology, Nuclear Medicine & Medical Imaging
GA BAM64
UT WOS:000304755602011
ER
PT S
AU Doering, D
Andresen, N
Contarato, D
Denes, P
Joseph, JM
McVittie, P
Walder, JP
Weizeorick, J
Zheng, B
AF Doering, Dionisio
Andresen, Nord
Contarato, Devis
Denes, Peter
Joseph, John M.
McVittie, Patrick
Walder, Jean-Pierre
Weizeorick, John
Zheng, Bob
GP IEEE
TI High Speed, Direct Detection 1k Frame-Store CCD Sensor for Synchrotron
Radiation
SO 2011 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE
(NSS/MIC)
SE IEEE Nuclear Science Symposium Conference Record
LA English
DT Proceedings Paper
CT IEEE Nuclear Science Symposium/Medical Imaging Conference (NSS/MIC)/18th
International Workshop on Room-Temperature Semiconductor X-Ray and
Gamma-Ray Detectors
CY OCT 23-29, 2011
CL Valencia, SPAIN
SP IEEE, Inst Elect & Elect Engineers Nucl & Plasma Sci Soc (IEEE NPSS)
AB This work presents the development of a high speed, direct detection, 1k Frame Store CCD camera for synchrotron radiation. We review the research and development of this detector from small scale prototypes to a megapixel sensor, highlighting design challenges and solutions, and reporting on the achieved imaging performance. Further, we report on performance improvements obtained by implementing a second-generation fast readout integrated circuit manufactured in 0.25 mu m CMOS technology, as well as a voltage buffer chip manufactured in high voltage 0.35 mu m CMOS technology. The camera presented in this paper is high vacuum-compatible to allow for soft X-ray detection.
C1 [Doering, Dionisio; Andresen, Nord; Contarato, Devis; Denes, Peter; Joseph, John M.; McVittie, Patrick; Walder, Jean-Pierre; Zheng, Bob] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
RP Doering, D (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, 1 Cyclotron Rd,MS50A6134, Berkeley, CA 94720 USA.
EM ddoering@lbl.gov; NCAndresen@lbl.gov; DContarato@lbl.gov;
PDenes@lbl.gov; JMJoseph@lbl.gov; PJMcvittie@lbl.gov; JPWalder@lbl.gov;
weizeo@anl.gov; BYZheng@lbl.gov
NR 6
TC 4
Z9 4
U1 0
U2 2
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1082-3654
BN 978-1-4673-0120-6
J9 IEEE NUCL SCI CONF R
PY 2011
BP 1840
EP 1845
PG 6
WC Engineering, Electrical & Electronic; Physics, Applied; Imaging Science
& Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging
SC Engineering; Physics; Imaging Science & Photographic Technology;
Radiology, Nuclear Medicine & Medical Imaging
GA BAM64
UT WOS:000304755602013
ER
PT S
AU Silver, Y
Ball, R
Beene, JR
Benhammou, Y
Ben-Moshe, M
Chapman, JW
Dai, T
Etzion, E
Ferretti, C
Guttman, N
Friedman, PS
Levin, DS
Ritt, S
Varner, RL
Weaverdyck, C
Zhou, B
AF Silver, Y.
Ball, R.
Beene, J. R.
Benhammou, Y.
Ben-Moshe, M.
Chapman, J. W.
Dai, T.
Etzion, E.
Ferretti, C.
Guttman, N.
Friedman, P. S.
Levin, D. S.
Ritt, S.
Varner, R. L.
Weaverdyck, C.
Zhou, B.
GP IEEE
TI Development of a plasma panel radiation detector: recent progress and
key issues
SO 2011 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE
(NSS/MIC)
SE IEEE Nuclear Science Symposium Conference Record
LA English
DT Proceedings Paper
CT IEEE Nuclear Science Symposium/Medical Imaging Conference (NSS/MIC)/18th
International Workshop on Room-Temperature Semiconductor X-Ray and
Gamma-Ray Detectors
CY OCT 23-29, 2011
CL Valencia, SPAIN
SP IEEE, Inst Elect & Elect Engineers Nucl & Plasma Sci Soc (IEEE NPSS)
AB A radiation detector based on plasma display panel technology, which is the principal component of plasma television displays is presented. Plasma Panel Sensor (PPS) technology is a variant of micropattern gas radiation detectors. The PPS is conceived as an array of sealed plasma discharge gas cells which can be used for fast response (O(5ns) per pixel), high spatial resolution detection (pixel pitch can be less than 100 micrometer) of ionizing and minimum ionizing particles. The PPS is assembled from non-reactive, intrinsically radiation-hard materials: glass substrates, metal electrodes and inert gas mixtures. We report on the PPS development program, including simulations and design and the first laboratory studies which demonstrate the usage of plasma display panels in measurements of cosmic ray muons, as well as the expansion of experimental results on the detection of betas from radioactive sources.
C1 [Silver, Y.; Benhammou, Y.; Ben-Moshe, M.; Etzion, E.; Guttman, N.] Tel Aviv Univ, Beverly & Raymond Sackler Sch Phys & Astron, IL-69978 Tel Aviv, Israel.
[Ball, R.; Chapman, J. W.; Dai, T.; Ferretti, C.; Levin, D. S.; Weaverdyck, C.; Zhou, B.] Univ Michigan, Dept Phys, Ann Arbor, MI USA.
[Beene, J. R.; Varner, R. L.] Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN USA.
[Friedman, P. S.] Integrated Sensors LLC, Toledo, OH USA.
[Ritt, S.] Paul Scherrer Inst, Villigen, Switzerland.
RP Silver, Y (reprint author), Tel Aviv Univ, Beverly & Raymond Sackler Sch Phys & Astron, IL-69978 Tel Aviv, Israel.
EM yiftahsi@post.tau.ac.il
FU U.S. Department of Energy [DE-FG0207ER84749, DE-SC0006204,
DE-SC0006219]; BSF [2008123]
FX This work was supported in part by the U.S. Department of Energy under
Grant Nos: DE-FG0207ER84749, DE-SC0006204, and DE-SC0006219. This work
was also supported in part by the Office of Nuclear Physics, U. S.
Department of Energy, and by the BSF under Grant No. 2008123.
NR 15
TC 1
Z9 1
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1082-3654
BN 978-1-4673-0120-6
J9 IEEE NUCL SCI CONF R
PY 2011
BP 1881
EP 1885
PG 5
WC Engineering, Electrical & Electronic; Physics, Applied; Imaging Science
& Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging
SC Engineering; Physics; Imaging Science & Photographic Technology;
Radiology, Nuclear Medicine & Medical Imaging
GA BAM64
UT WOS:000304755602022
ER
PT S
AU Krieger, B
Contarato, D
Denes, P
Doering, D
Gnani, D
Joseph, J
Schindler, S
AF Krieger, Brad
Contarato, Devis
Denes, Peter
Doering, Dionisio
Gnani, Dario
Joseph, John
Schindler, Simon
GP IEEE
TI Fast, radiation hard, direct detection CMOS imagers for high resolution
Transmission Electron Microscopy
SO 2011 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE
(NSS/MIC)
SE IEEE Nuclear Science Symposium Conference Record
LA English
DT Proceedings Paper
CT IEEE Nuclear Science Symposium/Medical Imaging Conference (NSS/MIC)/18th
International Workshop on Room-Temperature Semiconductor X-Ray and
Gamma-Ray Detectors
CY OCT 23-29, 2011
CL Valencia, SPAIN
SP IEEE, Inst Elect & Elect Engineers Nucl & Plasma Sci Soc (IEEE NPSS)
ID ACTIVE PIXEL SENSOR
AB This work presents the development of radiation-hard CMOS monolithic pixel sensors as direct electron detectors for high resolution, fast dynamic imaging in Transmission Electron Microscopy. The R&D path from small scale prototypes to megapixel, reticle size sensors manufactured in 0.35 and 0.18 mu m commercial CMOS processes is briefly reviewed. Design challenges and solutions are highlighted, with reporting on the achieved imaging performance and radiation hardness of sensors that can ultimately achieve readout rates as high as 6.4 gigapixels/s. Further, we will report on the latest search for an improved pixel architecture and layout, and introduce the evaluation of a first prototype sensor manufactured in a 65 nm CMOS process.
C1 [Krieger, Brad; Contarato, Devis; Denes, Peter; Doering, Dionisio; Gnani, Dario; Joseph, John; Schindler, Simon] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
RP Krieger, B (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
EM bnkrieger@lbl.gov
RI Gnani, Dario/J-6426-2012
OI Gnani, Dario/0000-0003-0464-9176
NR 7
TC 3
Z9 3
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1082-3654
BN 978-1-4673-0120-6
J9 IEEE NUCL SCI CONF R
PY 2011
BP 1946
EP 1949
PG 4
WC Engineering, Electrical & Electronic; Physics, Applied; Imaging Science
& Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging
SC Engineering; Physics; Imaging Science & Photographic Technology;
Radiology, Nuclear Medicine & Medical Imaging
GA BAM64
UT WOS:000304755602035
ER
PT S
AU Barton, P
Luke, P
Amman, M
Chan, YD
Detwiler, J
Loach, J
Martin, R
Poon, A
Tindall, C
Vetter, K
AF Barton, Paul
Luke, Paul
Amman, Mark
Chan, Yuen-Dat
Detwiler, Jason
Loach, James
Martin, Ryan
Poon, Alan
Tindall, Craig
Vetter, Kai
GP IEEE
TI Low-Noise Low-Mass Front End Electronics for Low-Background Physics
Experiments Using Germanium Detectors
SO 2011 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE
(NSS/MIC)
SE IEEE Nuclear Science Symposium Conference Record
LA English
DT Proceedings Paper
CT IEEE Nuclear Science Symposium/Medical Imaging Conference (NSS/MIC)/18th
International Workshop on Room-Temperature Semiconductor X-Ray and
Gamma-Ray Detectors
CY OCT 23-29, 2011
CL Valencia, SPAIN
SP IEEE, Inst Elect & Elect Engineers Nucl & Plasma Sci Soc (IEEE NPSS)
AB A low-noise resistive-feedback front-end electronics assembly has been developed for use with p-type point contact (PPC) Ge detectors in low background experiments. The front end was designed to have a low mass and potentially low radioactivity. It is fabricated on a fused silica substrate, and consists of a low-noise JFET, a feedback resistor formed from an amorphous Ge thin film, and feedback capacitor based on the stray capacitance between circuit traces. The substrate provides the appropriate thermal impedance to allow the FET to operate at the optimal temperature from self-heating when one side of the substrate is held at liquid nitrogen temperature. A noise level of 85 eV FWHM at 20 us peaking time has been observed in combination with a small PPC detector, the 1/f contribution being as low as 30 eV for the front end alone. This approach of employing ultra-low-mass and low-noise front-end electronics in combination with larger-size PPC detectors can be an enabling technology towards the observation of particles and processes such as neutrino-less double-beta, coherent neutrino scattering or cold dark matter.
C1 [Barton, Paul; Luke, Paul; Amman, Mark; Chan, Yuen-Dat; Detwiler, Jason; Loach, James; Martin, Ryan; Poon, Alan; Tindall, Craig; Vetter, Kai] Lawrence Berkeley Natl Lab, Berkeley, CA 94702 USA.
RP Barton, P (reprint author), Lawrence Berkeley Natl Lab, Berkeley, CA 94702 USA.
EM pjbarton@lbl.gov
NR 6
TC 5
Z9 5
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1082-3654
BN 978-1-4673-0120-6
J9 IEEE NUCL SCI CONF R
PY 2011
BP 1976
EP 1979
PG 4
WC Engineering, Electrical & Electronic; Physics, Applied; Imaging Science
& Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging
SC Engineering; Physics; Imaging Science & Photographic Technology;
Radiology, Nuclear Medicine & Medical Imaging
GA BAM64
UT WOS:000304755602041
ER
PT S
AU Brubaker, E
Dibble, D
Yang, P
AF Brubaker, Erik
Dibble, Dean
Yang, Pin
GP IEEE
TI Thermal neutron detection using alkali halide scintillators with Li-6
and pulse shape discrimination
SO 2011 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE
(NSS/MIC)
SE IEEE Nuclear Science Symposium Conference Record
LA English
DT Proceedings Paper
CT IEEE Nuclear Science Symposium/Medical Imaging Conference (NSS/MIC)/18th
International Workshop on Room-Temperature Semiconductor X-Ray and
Gamma-Ray Detectors
CY OCT 23-29, 2011
CL Valencia, SPAIN
SP IEEE, Inst Elect & Elect Engineers Nucl & Plasma Sci Soc (IEEE NPSS)
ID TL+ CONCENTRATIONS; ALPHA-PARTICLES
AB An ideal He-3 detector replacement for the near-to medium-term future will use materials that are easy to produce and well understood, while maintaining thermal neutron detection efficiency and gamma rejection close to the He-3 standard. Toward this end, we are investigating the use of standard alkali halide scintillators interfaced with Li-6 and read out with photomultiplier tubes (PMTs). Thermal neutrons are captured on Li-6 with high efficiency, emitting high-energy alpha and triton (H-3) reaction products. These particles deposit energy in the scintillator, providing a thermal neutron signal; discrimination against gamma interactions is possible via pulse shape discrimination (PSD), since heavy particles produce faster pulses in inorganic scintillating crystals. We constructed and tested two classes of detectors based on this concept. In one case Li-6 is used as a dopant in polycrystalline NaI; in the other case a thin Li foil is used as a conversion layer. We present results from these investigations, including measurements of the neutron efficiency and gamma rejection for the two detector types.
C1 [Brubaker, Erik; Dibble, Dean] Sandia Natl Labs, Livermore, CA 94550 USA.
[Yang, Pin] Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Brubaker, E (reprint author), Sandia Natl Labs, Livermore, CA 94550 USA.
FU U.S. Department of Energy's National Nuclear Security Administration
[DE-AC04-94AL85000]; NNSA Office of Nonproliferation Research and
Development [NA-22]
FX Sandia National Laboratories is a mUlti-program laboratory managed and
operated by Sandia Corporation, a wholly owned subsidiary of Lockheed
Martin Corporation, for the U.S. Department of Energy's National Nuclear
Security Administration under contract DE-AC04-94AL85000. This work was
funded by the NNSA Office of Nonproliferation Research and Development
(NA-22). SAND 20 1 1-8912C.
NR 4
TC 0
Z9 0
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1082-3654
BN 978-1-4673-0120-6
J9 IEEE NUCL SCI CONF R
PY 2011
BP 2006
EP 2009
PG 4
WC Engineering, Electrical & Electronic; Physics, Applied; Imaging Science
& Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging
SC Engineering; Physics; Imaging Science & Photographic Technology;
Radiology, Nuclear Medicine & Medical Imaging
GA BAM64
UT WOS:000304755602047
ER
PT S
AU Ziock, KP
Blackston, MA
Van Vuure, T
AF Ziock, K. P.
Blackston, M. A.
Van Vuure, T.
GP IEEE
TI 3D Millimeter Event Localization in Bulk Scintillator Crystals
SO 2011 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE
(NSS/MIC)
SE IEEE Nuclear Science Symposium Conference Record
LA English
DT Proceedings Paper
CT IEEE Nuclear Science Symposium/Medical Imaging Conference (NSS/MIC)/18th
International Workshop on Room-Temperature Semiconductor X-Ray and
Gamma-Ray Detectors
CY OCT 23-29, 2011
CL Valencia, SPAIN
SP IEEE, Inst Elect & Elect Engineers Nucl & Plasma Sci Soc (IEEE NPSS)
DE gamma-ray detectors; position-sensitive detector; coded-aperture;
gamma-ray imager; nuclear imaging
ID GAMMA-RAY IMAGER; RESOLUTION; PERFORMANCE; TELESCOPE; ARRAYS
AB One of the primary goals of scintillator-based gamma-ray detector development is to obtain spatial resolutions in bulk crystals at the millimeter level in all three spatial dimensions. An even more challenging goal is to disentangle multiple simultaneous energy depositions with comparable spatial resolutions. We are exploring a new technique to achieve this level of performance through the use of close-coupled, coded-aperture shadow masks placed between the crystal and a position-sensitive phototransducer. We report on simulations of such a device using Monte Carlo light transport simulations performed with GEANT 4. Initial indications are promising; however, the technique will require a very high level of performance from the phototransducer.
C1 [Ziock, K. P.; Blackston, M. A.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
[Van Vuure, T.] MAPPER Lithog, NL-2628 XK Delft, Netherlands.
RP Ziock, KP (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
EM ziockk@ornl.gov
FU office of DOE [NA-22]
FX This work was supported by the NA-22 office of DOE.
NR 24
TC 1
Z9 1
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1082-3654
BN 978-1-4673-0120-6
J9 IEEE NUCL SCI CONF R
PY 2011
BP 2014
EP 2022
PG 9
WC Engineering, Electrical & Electronic; Physics, Applied; Imaging Science
& Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging
SC Engineering; Physics; Imaging Science & Photographic Technology;
Radiology, Nuclear Medicine & Medical Imaging
GA BAM64
UT WOS:000304755602049
ER
PT S
AU Siegmund, OHW
McPhate, JB
Jelinsky, SR
Vallerga, JV
Tremsin, AS
Hemphill, R
Frisch, HJ
Wagner, RG
Elam, J
Mane, A
AF Siegmund, O. H. W.
McPhate, J. B.
Jelinsky, S. R.
Vallerga, J. V.
Tremsin, A. S.
Hemphill, R.
Frisch, H. J.
Wagner, R. G.
Elam, J.
Mane, A.
CA LAPPD Collaboration
GP IEEE
TI Development of Large Area Photon Counting Detectors Optimized for
Cherenkov Light Imaging with High Temporal and sub-mm Spatial Resolution
SO 2011 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE
(NSS/MIC)
SE IEEE Nuclear Science Symposium Conference Record
LA English
DT Proceedings Paper
CT IEEE Nuclear Science Symposium/Medical Imaging Conference (NSS/MIC)/18th
International Workshop on Room-Temperature Semiconductor X-Ray and
Gamma-Ray Detectors
CY OCT 23-29, 2011
CL Valencia, SPAIN
SP IEEE, Inst Elect & Elect Engineers Nucl & Plasma Sci Soc (IEEE NPSS)
AB Progress towards the development of a 20 cm sealed tube optical detector with imaging and photon event time stamping is presented. Novel microchannel plates employing borosilicate micro-capillary arrays have been tested. These provide many performance characteristics typical of conventional MCPs, but have been made in sizes up to 20 cm, have low intrinsic background (0.085 events cm(-2) s(-1)) and very stable gain behavior for at least 1 C cm(-2) of charge extraction. Bialkali (Na2KSb) photocathodes with > 20% quantum efficiency have also been made on borofloat-33 windows compatible with a 20 cm sealed tube device.
C1 [Siegmund, O. H. W.; McPhate, J. B.; Jelinsky, S. R.; Vallerga, J. V.; Tremsin, A. S.; Hemphill, R.] Univ Calif Berkeley, Berkeley, CA 94720 USA.
[Frisch, H. J.] Univ Chicago, Chicago, IL 94720 USA.
[Wagner, R. G.; Elam, J.; Mane, A.; LAPPD Collaboration] Argonne Natl Lab, Lemont, IL 94720 USA.
RP Siegmund, OHW (reprint author), Univ Calif Berkeley, Berkeley, CA 94720 USA.
EM ossy@ssl.berkeley.edu; mcphate@ssl.berkeley.edu;
sharonj@ssl.berkeley.edu; jvv@ssl.berkeley.edu; ast@ssl.berkeley.edu;
rhemp@ssl.berkeley.edu; frisch@hep.uchicago.edu; rgwcdf@hep.anl.gov;
jelam@anl.gov; amane@anl.gov
FU U.S. Department of Energy [DE-AC02-06CH 1 1357]
FX This work was supported in part by the U.S. Department of Energy under
contract DE-AC02-06CH 1 1357.
NR 13
TC 5
Z9 5
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1082-3654
BN 978-1-4673-0120-6
J9 IEEE NUCL SCI CONF R
PY 2011
BP 2063
EP 2070
PG 8
WC Engineering, Electrical & Electronic; Physics, Applied; Imaging Science
& Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging
SC Engineering; Physics; Imaging Science & Photographic Technology;
Radiology, Nuclear Medicine & Medical Imaging
GA BAM64
UT WOS:000304755602059
ER
PT S
AU Ancu, L
Falchieri, D
Dopke, J
Flick, T
Heim, T
Kugel, A
Neumann, M
Gabrielli, A
Grosse-Knetter, J
Joseph, J
Krieger, N
Olini, AP
Morettini, P
Schneider, B
Schroer, N
AF Ancu, L.
Falchieri, D.
Dopke, J.
Flick, T.
Heim, T.
Kugel, A.
Neumann, M.
Gabrielli, A.
Grosse-Knetter, J.
Joseph, J.
Krieger, N.
Olini, A. P.
Morettini, P.
Schneider, B.
Schroer, N.
GP IEEE
TI The ATLAS IBL BOC Demonstrator
SO 2011 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE
(NSS/MIC)
SE IEEE Nuclear Science Symposium Conference Record
LA English
DT Proceedings Paper
CT IEEE Nuclear Science Symposium/Medical Imaging Conference (NSS/MIC)/18th
International Workshop on Room-Temperature Semiconductor X-Ray and
Gamma-Ray Detectors
CY OCT 23-29, 2011
CL Valencia, SPAIN
SP IEEE, Inst Elect & Elect Engineers Nucl & Plasma Sci Soc (IEEE NPSS)
DE Detectors; Field Programmable Gate Array; Data acquisition
AB The Insertable-B-Layer (IBL) is a new pixel detector layer to be installed at the ATLAS experiment at the LHC, CERN in 2013. It will be integrated into the general pixel readout and software framework, hence the off-detector readout electronics has to support the new front-end electronics whilst maintaining a high degree of interoperability to the components of the existing system. The off-detector readout is realised using a number of VME card pairs ROD and BOC plus a VME crate controller and a custom timing distribution system. The main elements of the new BOC design comprise optical interfaces towards the detector, signal conditioning and data recovery logic. We present the demonstrator used to verify the design approach. The demonstrator is based on a XILINX SP605 FPGA evaluation board and uses a Microblaze processor inside the FPGA to provide easy and flexible access to all essential BOC functions and the corresponding emulator modules, which enable full test of the entire BOC functionality even without any external components. However, optical interfaces may be connected via a mezzanine card. We present the details of the emulation circuitries together with measurement results showing the operation of the BOC logic.
C1 [Ancu, L.; Schneider, B.] Univ Bern, CH-3012 Bern, Switzerland.
[Gabrielli, A.] Univ Bologna, I-40126 Bologna, Italy.
[Falchieri, D.; Olini, A. P.] Ist Nazl Fis Nucl, Bologna, Italy.
[Dopke, J.] CERN, CH-1211 Geneva 23, Switzerland.
[Flick, T.; Heim, T.; Neumann, M.] Univ Gesamthsch Wuppertal, Gesamthsch, Germany.
[Grosse-Knetter, J.; Krieger, N.] Univ Gottingen, Gottingen, Germany.
[Joseph, J.] Lawrence Berkeley Natl Lab, Berkeley, CA USA.
[Morettini, P.] Univ Genoa, Genoa, Italy.
[Kugel, A.; Schroer, N.] Heidelberg Univ, Heidelberg, Germany.
RP Ancu, L (reprint author), Univ Bern, CH-3012 Bern, Switzerland.
EM akugel@ieee.org
RI Gabrielli, Alessandro/H-4931-2012
OI Gabrielli, Alessandro/0000-0001-5346-7841
FU German Federal Ministry of Education and Research [05H09VHA, 05H09PX I,
05H09MGA]
FX This work was supported in part by the German Federal Ministry of
Education and Research under grants 05H09VHA, 05H09PX I and 05H09MGA
NR 1
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1082-3654
BN 978-1-4673-0120-6
J9 IEEE NUCL SCI CONF R
PY 2011
BP 2081
EP 2085
PG 5
WC Engineering, Electrical & Electronic; Physics, Applied; Imaging Science
& Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging
SC Engineering; Physics; Imaging Science & Photographic Technology;
Radiology, Nuclear Medicine & Medical Imaging
GA BAM64
UT WOS:000304755602062
ER
PT S
AU Baumbaugh, A
Bilki, B
Butler, J
Cundiff, T
Dal Monte, L
De Lurgio, P
Drake, G
Francis, K
Haberichter, W
Hazen, E
Hoff, J
Holm, S
Kreps, A
Repond, J
Schlereth, J
Smith, J
Trojand, D
Wu, S
Xia, L
Zhang, Q
AF Baumbaugh, A.
Bilki, B.
Butler, J.
Cundiff, T.
Dal Monte, L.
De Lurgio, P.
Drake, G.
Francis, K.
Haberichter, W.
Hazen, E.
Hoff, J.
Holm, S.
Kreps, A.
Repond, J.
Schlereth, J.
Smith, J.
Trojand, D.
Wu, S.
Xia, L.
Zhang, Q.
CA CALICE Collaboration
GP IEEE
TI Production and Commissioning of a Large Prototype Digital Hadron
Calorimeter for Future Colliding Beam Experiments
SO 2011 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE
(NSS/MIC)
SE IEEE Nuclear Science Symposium Conference Record
LA English
DT Proceedings Paper
CT IEEE Nuclear Science Symposium/Medical Imaging Conference (NSS/MIC)/18th
International Workshop on Room-Temperature Semiconductor X-Ray and
Gamma-Ray Detectors
CY OCT 23-29, 2011
CL Valencia, SPAIN
SP IEEE, Inst Elect & Elect Engineers Nucl & Plasma Sci Soc (IEEE NPSS)
AB A new detector technology is being developed for future colliding beam experiments that is based on the use of fine-grained calorimetry, to optimize the use of Particle Flow Algorithms (PFAs) in measuring hadronic jets. Instead of traditional tower geometry and energy summation from many sampling layers, the new approach measures energy deposition in 1 cm(2) cells on each sampling layer using discriminators. Jets are reconstructed using hit patterns from each layer, combined with information from inner tracking and the electromagnetic calorimeter. We have built a 480,000 channel prototype detector that is based on Resistive Plate Chambers (RPCs) to demonstrate this concept. The development is part of the CALICE Collaboration. The readout system uses a 64-channel custom integrated circuit called DCAL to record hits from each cell and apply a global timestamp. The chips mount directly on sophisticated front-end boards that are not only an integral part of the charge collection of the detector chambers, but also incorporate digital signal transmission, clock and control, and power and ground. The readout of data is serial, multiplexed into high-speed serial streams and sent to a "back-end" VME system for time-sorting and higher-level triggering. The system can be operated with an external trigger or be self-triggered, and can produce trigger signals from the front-end chips. The construction, installation, and commissioning of this prototype system is now complete. We have begun a measurement program using a test beam at Fermilab. An overview of the system is described. Experiences in building this large prototype system are reported. Results from the test beam are presented.
C1 [Baumbaugh, A.; Dal Monte, L.; Hoff, J.; Holm, S.] Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA.
[Cundiff, T.; De Lurgio, P.; Drake, G.; Francis, K.; Haberichter, W.; Kreps, A.; Repond, J.; Schlereth, J.; Smith, J.; Trojand, D.; Xia, L.; Zhang, Q.] Argonne Natl Lab, Lemont, IL USA.
[Bilki, B.] Univ Iowa, Iowa, IA USA.
[Baumbaugh, A.; Dal Monte, L.; Hoff, J.; Holm, S.] Fermilab Natl Accelerator Lab, Batavia, IL USA.
[Butler, J.; Hazen, E.; Wu, S.] Boston Univ, Boston, MA USA.
[Smith, J.] Univ Texas Arlington, Arlington, TX USA.
[Trojand, D.] McGill Univ, Montreal, PQ, Canada.
[Zhang, Q.] Inst High Energy Phys, Beijing, Peoples R China.
RP Baumbaugh, A (reprint author), Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA.
EM drake@anl.gov
FU U.S. Department of Commerce [BS123456]; Argonne National Laboratory; U.
S. DOE [DE-AC02-06CHl1357]
FX This work was supported in part by the U.S. Department of Commerce under
Grant No. BS123456. The work at Argonne National Laboratory' is
supported under U. S. DOE contract no. DE-AC02-06CHl1357.
NR 2
TC 0
Z9 0
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1082-3654
BN 978-1-4673-0120-6
J9 IEEE NUCL SCI CONF R
PY 2011
BP 2152
EP 2162
PG 11
WC Engineering, Electrical & Electronic; Physics, Applied; Imaging Science
& Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging
SC Engineering; Physics; Imaging Science & Photographic Technology;
Radiology, Nuclear Medicine & Medical Imaging
GA BAM64
UT WOS:000304755602076
ER
PT S
AU Wu, JY
Odeghe, J
Stackley, S
Zha, C
AF Wu, Jinyuan
Odeghe, John
Stackley, Scott
Zha, Charles
GP IEEE
TI Improving Single Slope ADC and an Example Implemented in FPGA with 16.7
GHz Equivalent Counter Clock Frequency
SO 2011 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE
(NSS/MIC)
SE IEEE Nuclear Science Symposium Conference Record
LA English
DT Proceedings Paper
CT IEEE Nuclear Science Symposium/Medical Imaging Conference (NSS/MIC)/18th
International Workshop on Room-Temperature Semiconductor X-Ray and
Gamma-Ray Detectors
CY OCT 23-29, 2011
CL Valencia, SPAIN
SP IEEE, Inst Elect & Elect Engineers Nucl & Plasma Sci Soc (IEEE NPSS)
DE Front End Electronics; TDC; FPGA Firmware
ID SENSOR
AB Single slope ADC is a common building block in many ASCI or FPGA based front-end systems due to its simplicity, small silicon footprint, low noise interference and low power consumption. In single slope ADC, using a Gray code counter is a popular scheme for time digitization, in which the comparator output drives the clock (CK) port of a register to latch the bits from the Gray code counter. Unfortunately, feeding the comparator output into the CK-port causes unnecessary complexities and artificial challenges. In this case, the propagation delays of all bits from the counter to the register inputs must be matched and the counter must be a Gray code one. A simple improvement on the circuit topology, i.e., feeding the comparator output into the D-port of a register, will avoid these unnecessary challenges, eliminating the requirement of the propagation delay match of the counter bits and allowing the use of regular binary counters. This scheme not only simplifies current designs for low speeds and resolutions, but also opens possibilities for applications requiring higher speeds and resolutions. A multi-channel single slope ADC based on a low-cost FPGA device has been implemented and tested. The timing measurement bin width in this work is 60 ps, which would need a 16.7 GHz counter clock had it implemented with the conventional Gray code counter scheme. A 12-bit performance is achieved using a fully differential circuit making comparison between the input and the ramping reference, both in differential format.
C1 [Wu, Jinyuan] Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA.
[Odeghe, John] South Carolina State Univ, Orangeburg, NY 29115 USA.
[Stackley, Scott] Boston Univ, Boston, MA 02215 USA.
[Zha, Charles] Rice Univ, Houston, TX 6100 USA.
RP Wu, JY (reprint author), Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA.
EM jywu168@fnal.gov; jodeghe@scsu.edu; sjstack@bu.edu; Charles.zha@rice.edu
FU Fenni Research Alliance LLC [DE-AC02-07CHI1359]; United States
Department of Energy
FX This work was supported in part by Fenni Research Alliance, LLC under
Contract No. DE-AC02-07CHI1359 with the United States Department of
Energy.
NR 11
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1082-3654
BN 978-1-4673-0120-6
J9 IEEE NUCL SCI CONF R
PY 2011
BP 2183
EP 2187
PG 5
WC Engineering, Electrical & Electronic; Physics, Applied; Imaging Science
& Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging
SC Engineering; Physics; Imaging Science & Photographic Technology;
Radiology, Nuclear Medicine & Medical Imaging
GA BAM64
UT WOS:000304755602081
ER
PT S
AU Ziock, KP
Bradley, EC
Cheriyadat, AM
Cunningham, M
Fabris, L
Fitzgerald, CL
Goddard, JS
Hornback, DE
Kerekes, RA
Karnowski, TP
Marchant, WT
Newby, RJ
AF Ziock, K. P.
Bradley, E. C.
Cheriyadat, A. M.
Cunningham, M.
Fabris, L.
Fitzgerald, C. L.
Goddard, J. S.
Hornback, D. E.
Kerekes, R. A.
Karnowski, T. P.
Marchant, W. T.
Newby, R. J.
GP IEEE
TI Performance of the Roadside Tracker portal-less portal monitor
SO 2011 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE
(NSS/MIC)
SE IEEE Nuclear Science Symposium Conference Record
LA English
DT Proceedings Paper
CT IEEE Nuclear Science Symposium/Medical Imaging Conference (NSS/MIC)/18th
International Workshop on Room-Temperature Semiconductor X-Ray and
Gamma-Ray Detectors
CY OCT 23-29, 2011
CL Valencia, SPAIN
SP IEEE, Inst Elect & Elect Engineers Nucl & Plasma Sci Soc (IEEE NPSS)
DE radiation portal monitor; coded-aperture imager; gamma-ray detectors;
gamma-ray imagers; nuclear imaging
ID UNIFORMLY REDUNDANT ARRAYS; APERTURE; IMAGER
AB We have developed a proof-of-concept prototype, rapid-deployment, gamma-ray portal monitor that can uniquely link the radiation signatures and visible-light images of vehicles in the system's field of view from the side of a multilane roadway. The instrument uses both visible-light and gamma-ray imaging to accomplish this. Vehicles entering the field of view of the visible-light imaging system are identified and tracked by an automated target acquisition and tracking software engine. The vehicle locations provided by this code are reported to the gamma-ray imager which uses them to locate the vehicles in the gamma-ray images and to collect the vehicle-specific radiation signatures from those images. Using this technique the gamma-ray data is integrated over the entire residence time of the vehicle in the gamma-ray imager field of view. The complete instrument comprises similar to 1-m(2) CsI(Na) detector area split between two units. The system has been designed to handle up to five-lanes of traffic at highway speeds, with one unit located on either side of the roadway. Because no equipment is required in the roadway, the instrument can be deployed without impacting the flow of traffic. The results of a test and evaluation campaign indicates that the system meets its design goal of detecting 37 MBq-class sources in any of five-lanes of traffic at up to 113 km/h.
C1 [Ziock, K. P.; Bradley, E. C.; Cheriyadat, A. M.; Fabris, L.; Fitzgerald, C. L.; Goddard, J. S.; Hornback, D. E.; Kerekes, R. A.; Newby, R. J.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
[Cunningham, M.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Marchant, W. T.] Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA.
RP Ziock, KP (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
EM ziockk@oml.gov
RI Fabris, Lorenzo/E-4653-2013
OI Fabris, Lorenzo/0000-0001-5605-5615
FU Department of Homeland Security's Domestic Nuclear Detection Office
FX This work was supported in part by the Department of Homeland Security's
Domestic Nuclear Detection Office.
NR 19
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1082-3654
BN 978-1-4673-0120-6
J9 IEEE NUCL SCI CONF R
PY 2011
BP 2195
EP 2203
PG 9
WC Engineering, Electrical & Electronic; Physics, Applied; Imaging Science
& Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging
SC Engineering; Physics; Imaging Science & Photographic Technology;
Radiology, Nuclear Medicine & Medical Imaging
GA BAM64
UT WOS:000304755602084
ER
PT S
AU Maramraju, SH
Smith, SD
Rescia, S
Stoll, S
Budassi, M
Bhadrecha, P
Ravindranath, B
Vaska, P
Woody, C
Schlyer, D
AF Maramraju, S. H.
Smith, S. D.
Rescia, S.
Stoll, S.
Budassi, M.
Bhadrecha, P.
Ravindranath, B.
Vaska, P.
Woody, C.
Schlyer, D.
GP IEEE
TI Evaluation of Cross-Modality Electromagnetic Interactions in a shielded
PET/MRI System
SO 2011 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE
(NSS/MIC)
SE IEEE Nuclear Science Symposium Conference Record
LA English
DT Proceedings Paper
CT IEEE Nuclear Science Symposium/Medical Imaging Conference (NSS/MIC)/18th
International Workshop on Room-Temperature Semiconductor X-Ray and
Gamma-Ray Detectors
CY OCT 23-29, 2011
CL Valencia, SPAIN
SP IEEE, Inst Elect & Elect Engineers Nucl & Plasma Sci Soc (IEEE NPSS)
ID RATCAP; PET
AB A small-animal PET/MRI scanner was developed previously that was integrated in a Bruker 9.4 T microMRI system, with which simultaneous PET/MR images of a rat's brain and of a gated mouse-heart were obtained. To minimize electromagnetic interactions in our PET/MRI system, viz., the effect of radiofrequency (RF) pulses in the PET, our modular front-end PET electronics were surrounded with variously configured shields. These included a solid aluminum shield and thin segmented layers of copper shielding. It was noted that the gradient-echo RF pulses had no impact on PET data when the PET electronics were shielded with either the aluminum or copper shields. However, we observed spurious counts in the PET data resulting from high-intensity fast spin-echo RF pulses; compared to the unshielded condition, they were suppressed effectively by the aluminum shield (similar to 97%) and the double-layer copper shield (similar to 90%). Using the solid aluminum shield yielded a poorer signal in the MR images than compared to segmented copper shields. Our initial results on shielding demonstrate that we can obtain interference-free PET data during gradient-echo pulses and obtain good-quality MR images with thin copper layers covering the PET detector housing.
C1 [Maramraju, S. H.; Budassi, M.; Bhadrecha, P.; Ravindranath, B.] SUNY Stony Brook, Dept Biomed Engn, Brookhaven Natl Lab, Upton, NY USA.
[Smith, S. D.; Rescia, S.; Stoll, S.; Vaska, P.; Woody, C.; Schlyer, D.] Brookhaven Natl Lab, Upton, NY 11973 USA.
RP Maramraju, SH (reprint author), SUNY Stony Brook, Dept Biomed Engn, Brookhaven Natl Lab, Upton, NY USA.
FU Brookhaven National Laboratory [DE-AC02-98CH10886]
FX Manuscript received November 15, 2011. This research was carried out at
Brookhaven National Laboratory under contract DE-AC02-98CH10886.
NR 6
TC 1
Z9 1
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1082-3654
BN 978-1-4673-0120-6
J9 IEEE NUCL SCI CONF R
PY 2011
BP 2500
EP 2505
PG 6
WC Engineering, Electrical & Electronic; Physics, Applied; Imaging Science
& Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging
SC Engineering; Physics; Imaging Science & Photographic Technology;
Radiology, Nuclear Medicine & Medical Imaging
GA BAM64
UT WOS:000304755602150
ER
PT S
AU Xi, W
Weisenberger, AG
Dong, H
Kross, B
Lee, S
McKisson, J
McKisson, JE
Zorn, C
AF Xi, W.
Weisenberger, A. G.
Dong, H.
Kross, B.
Lee, S.
McKisson, J.
McKisson, J. E.
Zorn, C.
GP IEEE
TI A Depth-of-interaction PET Detector Using Mutual Gain-equalized Silicon
Photomultiplier
SO 2011 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE
(NSS/MIC)
SE IEEE Nuclear Science Symposium Conference Record
LA English
DT Proceedings Paper
CT IEEE Nuclear Science Symposium/Medical Imaging Conference (NSS/MIC)/18th
International Workshop on Room-Temperature Semiconductor X-Ray and
Gamma-Ray Detectors
CY OCT 23-29, 2011
CL Valencia, SPAIN
SP IEEE, Inst Elect & Elect Engineers Nucl & Plasma Sci Soc (IEEE NPSS)
AB We developed a prototype high resolution, high efficiency depth-encoding detector for PET applications based on dual-ended readout of LYSO array with two silicon photomultipliers (SiPMs). Flood images, energy resolution, and depth-of-interaction (DOI) resolution were measured for a LYSO array -0.7 mm in crystal pitch and 10 mm in thickness - with four unpolished parallel sides. Flood images were obtained such that individual crystal element in the array is resolved. The energy resolution of the entire array was measured to be 33%, while individual crystal pixel elements utilizing the signal from both sides ranged from 23.3% to 27%. By applying a mutual-gain equalization method, a DOI resolution of 2 mm for the crystal array was obtained in the experiments while simulations indicate similar to 1 mm DOI resolution could possibly be achieved. The experimental DOI resolution can be further improved by obtaining revised detector supporting electronics with better energy resolutions. This study provides a detailed detector calibration and DOI response characterization of the dual-ended readout SiPM-based PET detectors, which will be important in the design and calibration of a PET scanner in the future.
C1 [Xi, W.; Weisenberger, A. G.; Dong, H.; Kross, B.; Lee, S.; McKisson, J.; McKisson, J. E.; Zorn, C.] Jefferson Lab, Newport News, VA USA.
RP Xi, W (reprint author), Jefferson Lab, Newport News, VA USA.
EM wxi@jlab.org
NR 3
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1082-3654
BN 978-1-4673-0120-6
J9 IEEE NUCL SCI CONF R
PY 2011
BP 3166
EP 3168
PG 3
WC Engineering, Electrical & Electronic; Physics, Applied; Imaging Science
& Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging
SC Engineering; Physics; Imaging Science & Photographic Technology;
Radiology, Nuclear Medicine & Medical Imaging
GA BAM64
UT WOS:000304755603089
ER
PT S
AU Vaska, P
Purschke, ML
Fried, J
Junnarkar, SS
Gualtieri, E
Pickup, S
Karp, JS
Stoll, S
Maramraju, SH
Ravindranath, B
Budassi, M
Cao, T
Pratte, JF
O'Connor, P
Schlyer, D
Woody, CL
AF Vaska, P.
Purschke, M. L.
Fried, J.
Junnarkar, S. S.
Gualtieri, E.
Pickup, S.
Karp, J. S.
Stoll, S.
Maramraju, S. -H.
Ravindranath, B.
Budassi, M.
Cao, T.
Pratte, J. -F.
O'Connor, P.
Schlyer, D.
Woody, C. L.
GP IEEE
TI An MRI-compatible PET Insert for Whole Body Studies in Rodents at High
Functional and Anatomical Resolution
SO 2011 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE
(NSS/MIC)
SE IEEE Nuclear Science Symposium Conference Record
LA English
DT Proceedings Paper
CT IEEE Nuclear Science Symposium/Medical Imaging Conference (NSS/MIC)/18th
International Workshop on Room-Temperature Semiconductor X-Ray and
Gamma-Ray Detectors
CY OCT 23-29, 2011
CL Valencia, SPAIN
SP IEEE, Inst Elect & Elect Engineers Nucl & Plasma Sci Soc (IEEE NPSS)
AB The feasibility of performing high-resolution PET and high-field MRI simultaneously in rodents has been previously demonstrated in small-scale systems capable of imaging the rat brain and mouse. We are nearing completion of a larger scale PET system which will accommodate the whole rat and perform at 9.4 T with <2 mm PET resolution. The PET insert has inner/outer diameters of 13.5/20.6 cm, compact enough to fit within the gradient set of a Varian large-bore 9.4T MRI system while accommodating on the inside a commercial Insight birdcage coil for the rat. The resulting volume capable of simultaneous PET/MRI imaging is 7 cm in diameter and 5 cm axially. The 96 PET detectors are arranged in 4 rings of modular detector blocks, each with an array of 2 x 2 x 14 mm LYSO crystal coupled to a Hamamatsu APD array and read out by the RatCAP ASIC. Data acquisition is divided into 4 sectors, each handled by a local FPGA which communicates via Ethernet to the host Pc. Offline data processing software is being developed to bin coincidences and determine physical corrections. Image reconstruction follows a listmode OSEM approach. The design of all hardware components is complete and prototypes of each have been fabricated. System integration is underway and initial performance of the system will be presented.
C1 [Vaska, P.; Purschke, M. L.; Fried, J.; Junnarkar, S. S.; Gualtieri, E.; Pickup, S.; Karp, J. S.; Stoll, S.; Maramraju, S. -H.; Ravindranath, B.; Budassi, M.; Cao, T.; Pratte, J. -F.; O'Connor, P.; Schlyer, D.; Woody, C. L.] Brookhaven Natl Lab, Upton, NY 11973 USA.
RP Vaska, P (reprint author), Brookhaven Natl Lab, Upton, NY 11973 USA.
EM vaska@bnl.gov
NR 3
TC 4
Z9 4
U1 3
U2 4
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1082-3654
BN 978-1-4673-0120-6
J9 IEEE NUCL SCI CONF R
PY 2011
BP 3169
EP 3172
PG 4
WC Engineering, Electrical & Electronic; Physics, Applied; Imaging Science
& Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging
SC Engineering; Physics; Imaging Science & Photographic Technology;
Radiology, Nuclear Medicine & Medical Imaging
GA BAM64
UT WOS:000304755603090
ER
PT S
AU Zeng, GSL
Kadrmas, DJ
Gullberg, GT
AF Zeng, Gengsheng L.
Kadrmas, Dan J.
Gullberg, Grant T.
GP IEEE
TI Fourier Domain Closed-Form Formulas for Estimation of Kinetic Parameters
in Multi-Compartment Models
SO 2011 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE
(NSS/MIC)
SE IEEE Nuclear Science Symposium Conference Record
LA English
DT Proceedings Paper
CT IEEE Nuclear Science Symposium/Medical Imaging Conference (NSS/MIC)/18th
International Workshop on Room-Temperature Semiconductor X-Ray and
Gamma-Ray Detectors
CY OCT 23-29, 2011
CL Valencia, SPAIN
SP IEEE, Inst Elect & Elect Engineers Nucl & Plasma Sci Soc (IEEE NPSS)
ID POSITRON-EMISSION-TOMOGRAPHY; MYOCARDIAL BLOOD-FLOW; DYNAMIC PET;
COMPARTMENTAL-MODELS; LINEAR-REGRESSION; RIDGE-REGRESSION; IMAGES;
ALGORITHMS; GENERATION
AB Dynamic emission computed tomographic imaging with compartment modeling can quantify in vivo physiologic processes, eliciting more information regarding underlying molecular disease processes than can be obtained from static imaging. However, estimation of kinetic rate parameters for multi-compartment models can be computationally demanding and problematic in the presence of high statistical noise. A number of techniques for kinetic parameter estimation have been studied and are in use today, generally offering a tradeoff between computation time, robustness of fit, and flexibility with differing sets of assumptions. This paper offers a new perspective to the compartment model fitting problem where Fourier linear system theory is applied to derive closed-form formulas for estimating kinetic parameters for one-and two-tissue compartment models. The proposed Fourier domain estimation method is computationally efficient, provides a unique solution, and offers very different noise response as compared to traditional non-linear chi-squared minimization techniques. The unique feature of the proposed Fourier domain method is that the DC (Direct Current) component in the data is treated as the most important information. Only low frequency components are used for kinetic parameter estimation, and high frequency components that tend to be corrupted by statistical noise are discarded. Computer simulations show that the proposed method is robust without specifying the initial condition.
C1 [Zeng, Gengsheng L.; Kadrmas, Dan J.] Univ Utah, Dept Radiol, UCAIR, Salt Lake City, UT 84108 USA.
[Gullberg, Grant T.] Lawrence Berkeley Natl Lab, Ctr funct imaging, Berkeley, CA 94720 USA.
RP Zeng, GSL (reprint author), Univ Utah, Dept Radiol, UCAIR, Salt Lake City, UT 84108 USA.
EM larry@ucair.med.utah.edu; kadrmas@ucair.med.utah.edu; gtgullberg@lbl.gov
FU NIH [ROI CAJ35556, ROI HL50663, ROI EB0072 I 9]; US Department of Energy
[DE-AC02-05CHI 123I]
FX This work was supported in part by the Ben B. and Iris M. Margolis
Foundation, NIH grants ROI CAJ35556, ROI HL50663, ROI EB0072 I 9 and by
the Director, Office of Science, Office of Biological and Environmental
Research of the US Department of Energy under contract DE-AC02-05CHI
123I.
NR 32
TC 2
Z9 2
U1 0
U2 3
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1082-3654
BN 978-1-4673-0120-6
J9 IEEE NUCL SCI CONF R
PY 2011
BP 3209
EP 3216
PG 8
WC Engineering, Electrical & Electronic; Physics, Applied; Imaging Science
& Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging
SC Engineering; Physics; Imaging Science & Photographic Technology;
Radiology, Nuclear Medicine & Medical Imaging
GA BAM64
UT WOS:000304755603099
ER
PT S
AU Lee, S
Kross, B
Weisenberger, AG
McKisson, J
Goddard, JS
Baba, JS
Smith, MF
AF Lee, S.
Kross, B.
Weisenberger, A. G.
McKisson, J.
Goddard, J. S.
Baba, J. S.
Smith, M. F.
GP IEEE
TI Dual-headed SPECT for awake animal brain imaging
SO 2011 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE
(NSS/MIC)
SE IEEE Nuclear Science Symposium Conference Record
LA English
DT Proceedings Paper
CT IEEE Nuclear Science Symposium/Medical Imaging Conference (NSS/MIC)/18th
International Workshop on Room-Temperature Semiconductor X-Ray and
Gamma-Ray Detectors
CY OCT 23-29, 2011
CL Valencia, SPAIN
SP IEEE, Inst Elect & Elect Engineers Nucl & Plasma Sci Soc (IEEE NPSS)
AB Motion-corrected awake animal imaging is needed for normal-state investigations of models of neurological disease and brain activity. The awake animal brain SPECT/CT system, AwakeSPECT at Johns Hopkins University has in the past used a single gamma camera for imaging. Enhancements have been made by adding a pinhole collimator to the second gamma camera at the opposite side which has been previously equipped parallel hole collimator. Geometry calibration was performed using a custom built quality control phantom containing three Co-57 point sources and applied to the tomographic reconstruction code. Hot-rod phantom scans with Tc-99m were performed to test sensitivity and resolution improvements. The reconstruction results show significant resolution and sensitivity improvements.
C1 [Lee, S.; Kross, B.; Weisenberger, A. G.; McKisson, J.] Thomas Jefferson Natl Accelerator Facil, Newport News, VA 23606 USA.
[Goddard, J. S.; Baba, J. S.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
[Smith, M. F.] Univ Maryland, Sch Med, Baltimore, MD 21201 USA.
RP Lee, S (reprint author), Thomas Jefferson Natl Accelerator Facil, Newport News, VA 23606 USA.
EM sjlee@jlab.org; babajs@oml.gov; msmith7@umm.edu
FU U.S. Department of Energy under contract [DE-AC05-060R23 177]; DOE
Office of Biological and Environmental Research
FX Manuscript received November 14, 20 II. This work was supported in part
by the U.S. Department of Energy under contract DE-AC05-060R23 177.
Support for this research came from, the DOE Office of Biological and
Environmental Research.
NR 3
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1082-3654
BN 978-1-4673-0120-6
J9 IEEE NUCL SCI CONF R
PY 2011
BP 3250
EP 3252
PG 3
WC Engineering, Electrical & Electronic; Physics, Applied; Imaging Science
& Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging
SC Engineering; Physics; Imaging Science & Photographic Technology;
Radiology, Nuclear Medicine & Medical Imaging
GA BAM64
UT WOS:000304755603107
ER
PT S
AU Bowen, JD
Huang, Q
Gullberg, GT
Seo, Y
AF Bowen, Jason D.
Huang, Qiu
Gullberg, Grant T.
Seo, Youngho
GP IEEE
TI Phantom Measurements and Simulations of Cardiac and Brain Studies Using
a Multipinhole Collimator with 20 Apertures
SO 2011 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE
(NSS/MIC)
SE IEEE Nuclear Science Symposium Conference Record
LA English
DT Proceedings Paper
CT IEEE Nuclear Science Symposium/Medical Imaging Conference (NSS/MIC)/18th
International Workshop on Room-Temperature Semiconductor X-Ray and
Gamma-Ray Detectors
CY OCT 23-29, 2011
CL Valencia, SPAIN
SP IEEE, Inst Elect & Elect Engineers Nucl & Plasma Sci Soc (IEEE NPSS)
DE Single photon emission computed tomography (SPECT); multipinhole;
myocardial perfusion imaging (MPI); dual-isotope imaging
ID SCINTILLATION CAMERA
AB SPECT, despite its success, has an uncertain future This is partly due to the continued use of parallel hole collimators. These collimators possess poor geometric sensitivity which leads to increased study times and higher dose requirements. In recent years there has been activity investigating dedicated SPECT cameras which attempt to build on the strengths of SPECT while addressing its weaknesses. Here we present measurements of a cardiac and Hoffman brain phantom (Data Spectrum, Hillsborough, NC) performed with a pair of focusing 20-pinhole collimators with 7.5 mm diameter tungsten apertures mounted on an Infinia Hawkeye 4 dual-head SPECT/CT system (GE Uealthcare, Chalfont St. Giles, UK). Comparisons are made with measurements taken with LEUR parallelhole collimators. We also present an assessment of point source sensitivity and image resolution. The cardiac and brain phantoms contained 3.8 mCi and 1.5 mCi of 99mTc-pertechnetate (140 keV), respectively. The cardiac phantom was imaged with six 300 s views over 180 degrees and the brain phantom was imaged with eight 300 s views over 360 degrees. The gantry orbit was circular with a radius of rotation between 22.5 cm and 25.0 cm. Shortened study times were simulated by scaling the projection data and adding Poisson noise. The multipinhole projection data were then reconstructed with 300 iterations of MLEM. We find that despite the relatively large pinhole sizes we obtain image quality comparable to that obtained with LEHR collimators at a fraction the acquisition time. For the cardiac phantom good quality images are obtained in 10 minutes, while for the brain phantom comparable image quality is attained in 10 minutes. The measured point source sensitivity near the central field of view is 7.4 x 10(-4), and optimal resolution is between 9 mm and 13 mm. These results indicate that imaging performance approaching that capable with dedicated SPECT cameras may be possible with these collimators while leveraging the existing SPECT install base.
C1 [Bowen, Jason D.; Seo, Youngho] Univ Calif San Francisco, San Francisco, CA 94143 USA.
[Huang, Qiu] Shanghai Jiao Tong Univ, Shanghai 200030, Peoples R China.
[Gullberg, Grant T.] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
RP Bowen, JD (reprint author), Univ Calif San Francisco, San Francisco, CA 94143 USA.
EM jason.bowen@ucsf.edu
NR 3
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1082-3654
BN 978-1-4673-0120-6
J9 IEEE NUCL SCI CONF R
PY 2011
BP 3417
EP 3421
PG 5
WC Engineering, Electrical & Electronic; Physics, Applied; Imaging Science
& Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging
SC Engineering; Physics; Imaging Science & Photographic Technology;
Radiology, Nuclear Medicine & Medical Imaging
GA BAM64
UT WOS:000304755603146
ER
PT S
AU Raulo, A
Hennard, G
Sowinska, M
James, RB
Fauler, A
Fiederle, M
AF Raulo, A.
Hennard, G.
Sowinska, M.
James, R. B.
Fauler, A.
Fiederle, M.
GP IEEE
TI Te inclusions in Large Size CdTe THM Crystals
SO 2011 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE
(NSS/MIC)
SE IEEE Nuclear Science Symposium Conference Record
LA English
DT Proceedings Paper
CT IEEE Nuclear Science Symposium/Medical Imaging Conference (NSS/MIC)/18th
International Workshop on Room-Temperature Semiconductor X-Ray and
Gamma-Ray Detectors
CY OCT 23-29, 2011
CL Valencia, SPAIN
SP IEEE, Inst Elect & Elect Engineers Nucl & Plasma Sci Soc (IEEE NPSS)
DE Large area CdTe detectors; Te inclusions; resistivity mapping; IR
measurements; non-destructive testing; material characterization
ID TRAVELING HEATER METHOD; BRIDGMAN METHOD; CDZNTE; GROWTH; PERFORMANCE;
SCATTERING; DETECTORS; DEFECTS
AB The homogeneity of compound semiconductors wafers of high resistivity affects the production yield, and, therefore, the cost for industry. In general, the production yield of good spectral quality large size detectors is rather low compared to those of small size. CdTe as well as CdZnTe compounds are the most promising semiconductor materials used in the field of room temperature X-and gamma ray detectors. T hey can be used for the detection of low energy X-ray with resolution in the 200 eV range as well as in high energy gamma-spectroscopy, for radiation monitoring in nuclear field, space and astronomy and many other like medical and industrial imaging systems. Among the various crystal growing methods (Bridgman, (LPB, HPB, Horizontal Bridgman), Physical Vapor Transport (PVT), Travelling Heater Method), THM is low temperature growth process where the crystals have relatively low number of defects and less impurity incorporation from the crucible. T he main non-uniformity of the crystals comes essentially from Te excess growth conditions resulting from the retrograde slope of solidus line in the phase diagram. The influence of Te inclusions and precipitates on the electrical and spectroscopic properties of the detectors obtained from large size CdTe, crystals grown by THM method, are the subject of the present paper. T he latest results will be presented of the distribution and size of Te inclusions in THM grown CdTe crystals. IR imaging, resistivity and charge carrier mobility as well as electric and spectroscopic measurements have been used for materials characterization. Data will be presented obtained by CoReMa, Contactless Mobility-Lifetime Mapping and IR Microscopy. T he data will be correlated with the detector performance of selected samples.
C1 [Raulo, A.; Hennard, G.; Sowinska, M.] EURORAD, 2 Rue Ettore Bugatti, F-67201Y Eckbolsheim Strasbourg, France.
[James, R. B.] Brookhaven Natl Lab, Upton, NY 11973 USA.
[Fauler, A.; Fiederle, M.] Univ Freiburg, Freiburger Mat Forschungszentrum, D-79104 Freiburg, Germany.
RP Raulo, A (reprint author), EURORAD, 2 Rue Ettore Bugatti, F-67201Y Eckbolsheim Strasbourg, France.
EM a.raulo@eurorad.com; m.sowinska@eurorad.com; rjames@bnl.gov;
michael.fiederle@fmf.uni-freiburg.de
RI Fiederle, Michael/B-9750-2013
FU European project LACX
FX Parte of this work was supported European project LACX
NR 17
TC 1
Z9 1
U1 0
U2 4
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1082-3654
BN 978-1-4673-0120-6
J9 IEEE NUCL SCI CONF R
PY 2011
BP 4514
EP 4517
PG 4
WC Engineering, Electrical & Electronic; Physics, Applied; Imaging Science
& Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging
SC Engineering; Physics; Imaging Science & Photographic Technology;
Radiology, Nuclear Medicine & Medical Imaging
GA BAM64
UT WOS:000304755604157
ER
PT S
AU Nowicki, SF
Anderson, SE
Parsons, AM
AF Nowicki, Suzanne F.
Anderson, Stephen E.
Parsons, Ann M.
GP IEEE
TI 6 MeV Energy Calibration and Reconstruction with Pixelated CZT Detectors
using Digital Methods
SO 2011 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE
(NSS/MIC)
SE IEEE Nuclear Science Symposium Conference Record
LA English
DT Proceedings Paper
CT IEEE Nuclear Science Symposium/Medical Imaging Conference (NSS/MIC)/18th
International Workshop on Room-Temperature Semiconductor X-Ray and
Gamma-Ray Detectors
CY OCT 23-29, 2011
CL Valencia, SPAIN
SP IEEE, Inst Elect & Elect Engineers Nucl & Plasma Sci Soc (IEEE NPSS)
DE CZT; gamma-ray spectroscopy; high energy
ID CDZNTE DETECTORS
AB CZT is an attractive material for gamma-ray spectroscopy due to its high resolution, high efficiency and ability to operate at room temperature. It has shown better than 1 % FWHM energy resolution at 662 keV. However, at higher energies, the electron cloud gets bigger than the size of a single pixel. This effect is known as charge sharing and contributes to energy resolution degradation. It is important for planetary science and astrophysics applications to broaden the energy range of pixelated CZT detectors. A digitizer system was used to study the response of a 2 cm x 2 cm x 1.5 cm pixelated CZT detector manufactured by Redlen Technology Inc., to a source of 6.129 MeV from the de-excitation of the second excited state of O-16. The 5.107 MeV double escape peak was identified and has shown that the response of the system is linear at high energy.
C1 [Nowicki, Suzanne F.; Parsons, Ann M.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Anderson, Stephen E.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Nowicki, SF (reprint author), NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
EM suzanne.f.nowicki@nasa.gov
RI Parsons, Ann/I-6604-2012
FU NASA Goddard Space Flight Center
FX This work was supported by the NASA Goddard Space Flight Center.
NR 8
TC 1
Z9 1
U1 0
U2 3
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1082-3654
BN 978-1-4673-0120-6
J9 IEEE NUCL SCI CONF R
PY 2011
BP 4697
EP 4700
PG 4
WC Engineering, Electrical & Electronic; Physics, Applied; Imaging Science
& Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging
SC Engineering; Physics; Imaging Science & Photographic Technology;
Radiology, Nuclear Medicine & Medical Imaging
GA BAM64
UT WOS:000304755604192
ER
PT S
AU Kim, S
Hernandez, A
Alhassen, F
Pivovaroff, M
Cho, HM
Gould, RG
Seo, YH
AF Kim, Sangtaek
Hernandez, Andrew
Alhassen, Fares
Pivovaroff, Michael
Cho, Hyo-Min
Gould, Robert G.
Seo, Youngho
GP IEEE
TI Multi-Material Decomposition using Low-Current X-Ray and a
Photon-Counting CZT Detector
SO 2011 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE
(NSS/MIC)
SE IEEE Nuclear Science Symposium Conference Record
LA English
DT Proceedings Paper
CT IEEE Nuclear Science Symposium/Medical Imaging Conference (NSS/MIC)/18th
International Workshop on Room-Temperature Semiconductor X-Ray and
Gamma-Ray Detectors
CY OCT 23-29, 2011
CL Valencia, SPAIN
SP IEEE, Inst Elect & Elect Engineers Nucl & Plasma Sci Soc (IEEE NPSS)
ID COMPUTED-TOMOGRAPHY; CT; DENSITY; SYSTEM
AB We developed and evaluated an x-ray photon-counting imaging system using an energy-resolving cadmium zinc telluride (CZT) detector coupled with application specific integrated circuit (ASIC) readouts. This x-ray imaging system can be used to identify different materials inside the object. The CZT detector has a large active area (5x5 array of 25 CZT modules, each with 16x16 pixels, cover a total area of 200 mm x 200 mm), high stopping efficiency for x-ray photons (similar to 100 % at 60 keV and 5 mm thickness). We explored the performance of this system by applying different energy windows around the absorption edges of target materials, silver and indium, in order to distinguish one material from another. The photon-counting CZT-based x-ray imaging system was able to distinguish between the materials, demonstrating its capability as a radiation-spectroscopic decomposition system.
C1 [Kim, Sangtaek; Alhassen, Fares; Gould, Robert G.; Seo, Youngho] Univ Calif San Francisco, Phys Res Lab, San Francisco, CA 94107 USA.
[Pivovaroff, Michael] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Cho, Hyo-Min] Yonsei Univ, Wonju, South Korea.
RP Kim, S (reprint author), Univ Calif San Francisco, Phys Res Lab, San Francisco, CA 94107 USA.
EM sangtaek_kim@yahoo.com
RI Pivovaroff, Michael/M-7998-2014
OI Pivovaroff, Michael/0000-0001-6780-6816
FU National Institutes of Health [ROI EB000348, ROI EB012965]
FX This work was supported in part by the National Institutes of Health
under grant ROI EB000348 and grant ROI EB012965.
NR 15
TC 0
Z9 0
U1 0
U2 3
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1082-3654
BN 978-1-4673-0120-6
J9 IEEE NUCL SCI CONF R
PY 2011
BP 4735
EP 4738
PG 4
WC Engineering, Electrical & Electronic; Physics, Applied; Imaging Science
& Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging
SC Engineering; Physics; Imaging Science & Photographic Technology;
Radiology, Nuclear Medicine & Medical Imaging
GA BAM64
UT WOS:000304755604199
PM 23503709
ER
PT S
AU Kim, KH
Bolotnikov, AE
Camarda, GS
Tappero, R
Cui, Y
Hossain, A
Franc, J
Marchini, L
Zappettini, A
Fochuk, P
Gul, R
Yang, G
James, RB
AF Kim, K. H.
Bolotnikov, A. E.
Camarda, G. S.
Tappero, R.
Cui, Y.
Hossain, A.
Franc, J.
Marchini, L.
Zappettini, A.
Fochuk, P.
Gul, R.
Yang, G.
James, R. B.
GP IEEE
TI New Insights for Uniform and Large-volume CdZnTe and CdMnTe Detectors
SO 2011 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE
(NSS/MIC)
SE IEEE Nuclear Science Symposium Conference Record
LA English
DT Proceedings Paper
CT IEEE Nuclear Science Symposium/Medical Imaging Conference (NSS/MIC)/18th
International Workshop on Room-Temperature Semiconductor X-Ray and
Gamma-Ray Detectors
CY OCT 23-29, 2011
CL Valencia, SPAIN
SP IEEE, Inst Elect & Elect Engineers Nucl & Plasma Sci Soc (IEEE NPSS)
AB CdZnTe (CZT) and CdMnTe (CMT) materials come into the spotlight for room-temperature semiconductor detectors. Nonethelss, both materials still have limitations for the production of economical, uniform, and large-volume devices due to the zinc (Zn) segregation in CZT and manganese purity in CMT. The effective segregation coefficient of Zn in the CdTe host is nearly 1.3, so about 5-6% of Zn deviation has been reported in Bridgman-grown CZT (Zn=10%) ingots. Such Zn non-uniformity limits the cutting of the ingot parallel to the crystal growth direction for producing large-volume CZT detectors due to the signal non-uniformity that would be generated by the band-gap variations. However, our recent findings show that the Zn segregation can be controlled by the specific thermal environment. The high residual impurities in the starting source materials, especially for manganese, were obstacles for obtaining high-performance CMT detectors. The purification of manganese telluride (MnTe) by a floating Te melt-zone proved to be very effective, and CMT detectors fabricated with purified material give a 2.1% energy resolution for 662 keY associated with a (CS)-C-137 gamma source.
C1 [Kim, K. H.; Bolotnikov, A. E.; Camarda, G. S.; Tappero, R.; Cui, Y.; Hossain, A.; Gul, R.; James, R. B.] Brookhaven Natl Lab, Upton, NY 11973 USA.
[Franc, J.] Charles Univ Prague, Rrague, Czech Republic.
[Marchini, L.] CNR, IMEM, Parma, Italy.
[Fochuk, P.] Chernivisti Natl Univ, Chernivisti, Ukraine.
RP Kim, KH (reprint author), Brookhaven Natl Lab, Upton, NY 11973 USA.
EM khkim@bnl.gov
RI Fochuk, Petro/D-9409-2016; Franc, Jan/C-3802-2017
OI Fochuk, Petro/0000-0002-4149-4882; Franc, Jan/0000-0002-9493-3973
FU U.S.Department of Energy [DE-AC02-98CHl-886, NA 22]
FX This work was supported by U.S.Department of Energy, Office of
Nonproliferation Research and Verification,NA 22. The manuscript has
been authored by Brookhaven Science Associates,LLC under Contract No.
DE-AC02-98CHl-886 with the U.S. Department of Energy.
NR 5
TC 2
Z9 2
U1 0
U2 8
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1082-3654
BN 978-1-4673-0120-6
J9 IEEE NUCL SCI CONF R
PY 2011
BP 4751
EP 4755
PG 5
WC Engineering, Electrical & Electronic; Physics, Applied; Imaging Science
& Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging
SC Engineering; Physics; Imaging Science & Photographic Technology;
Radiology, Nuclear Medicine & Medical Imaging
GA BAM64
UT WOS:000304755604202
ER
PT S
AU Harrison, MJ
Cherel, Q
Monterial, M
AF Harrison, Mark J.
Cherel, Quentin
Monterial, Mateusz
GP IEEE
TI Design of a Moderated Multidetector Neutron Spectrometer for Optimal
Specificity
SO 2011 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE
(NSS/MIC)
SE IEEE Nuclear Science Symposium Conference Record
LA English
DT Proceedings Paper
CT IEEE Nuclear Science Symposium/Medical Imaging Conference (NSS/MIC)/18th
International Workshop on Room-Temperature Semiconductor X-Ray and
Gamma-Ray Detectors
CY OCT 23-29, 2011
CL Valencia, SPAIN
SP IEEE, Inst Elect & Elect Engineers Nucl & Plasma Sci Soc (IEEE NPSS)
ID WIDE ENERGY-RANGE; RESPONSE MATRIX; PROPORTIONAL COUNTER; DETECTION
SYSTEM; VARIANT DESIGNS; SLOW-NEUTRONS; REM COUNTER; DETECTOR;
CALIBRATION; ABSORPTION
AB Neutron spectrometry can play an important role in the detection and identification of neutron-emitting sources in various security applications. In the present work, a portable filtered array neutron spectrometer, consisting of twelve (LiF)-Li-6-based thermal neutron detectors embedded within a single heterogeneous volume was designed and its expected performance compared to that of a commercially available 12-sphere Bonner spheres spectrometer. Each detector within the volume was designed to optimally respond to a unique portion of the neutron spectrum by varying the type and thickness of materials used to filter the spectrum as well as the thickness of the moderator in front of the detector. The available design space was permuted and performance metrics developed to identify the optimal geometries. The top performing detector geometries were then combinatorially explored to identify the best array of geometries that yielded the most information about a neutron spectrum. The best performing filtered array was found to provide as much spectral information as, or more than, the commercially available 12-sphere Bonner spheres spectrometer to which it was compared.
C1 [Harrison, Mark J.; Monterial, Mateusz] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
[Cherel, Quentin] Univ Florida, Gainesville, FL USA.
[Cherel, Quentin] ALTRAN, Paris, France.
RP Harrison, MJ (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
EM harrisonmj1@ornl.gov; quentin.cherel@altran.com; monterialm@ornl.gov
FU Laboratory Directed Research; Oak Ridge National Laboratory; U. S.
Department of Energy
FX Research sponsored by the Laboratory Directed Research and Development
Program of Oak Ridge National Laboratory, managed by UT-Battelle, LLC,
for the U. S. Department of Energy.
NR 63
TC 0
Z9 0
U1 1
U2 4
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1082-3654
BN 978-1-4673-0120-6
J9 IEEE NUCL SCI CONF R
PY 2011
BP 4787
EP 4794
PG 8
WC Engineering, Electrical & Electronic; Physics, Applied; Imaging Science
& Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging
SC Engineering; Physics; Imaging Science & Photographic Technology;
Radiology, Nuclear Medicine & Medical Imaging
GA BAM64
UT WOS:000304755605004
ER
PT S
AU Sowinska, M
Simon, H
Raulo, A
Mycielski, A
Kochanowska, D
Witkowska-Baran, M
James, RB
AF Sowinska, M.
Simon, H.
Raulo, A.
Mycielski, A.
Kochanowska, D.
Witkowska-Baran, M.
James, R. B.
GP IEEE
TI Resistivity and mu-tau imager for automatic characterization of
semiconductor materials
SO 2011 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE
(NSS/MIC)
SE IEEE Nuclear Science Symposium Conference Record
LA English
DT Proceedings Paper
CT IEEE Nuclear Science Symposium/Medical Imaging Conference (NSS/MIC)/18th
International Workshop on Room-Temperature Semiconductor X-Ray and
Gamma-Ray Detectors
CY OCT 23-29, 2011
CL Valencia, SPAIN
SP IEEE, Inst Elect & Elect Engineers Nucl & Plasma Sci Soc (IEEE NPSS)
DE Semiconductor materials; Crystals characterization; Material uniformity;
Resistivity and mu-tau product mapping
AB Despite intensive research for the improvement of the quality of II-VI crystals, until now no clear method permits to determine quickly the performance of final detector, directly on the as-grown crystal or on the wafers. This situation induces excess cost, which hinders the development of detectors based on these binary and ternary semiconductors.
The homogeneity of the semi-insulating crystals will determine the capacity of these semiconductors to be used in gamma- and X-rays detectors for imaging in medical, spatial and industrial applications. It appears, that the smaller the pixel unit size is, the better the material uniformity has to be. Fast characterization and non destructive methods become, therefore, imperative to keep the production costs in industry acceptable.
The previously developed innovative contactless equipment for the mapping of resistivity of the wafers before contacts are deposited has become of great interest with a rather large domain of resistivity ( from 106 up to 1012 Ohm cm). We have introduced an additional contactless wafer mu-tau imaging of electrons on the same wafer automatically. The principle is based on a localized excitation of the wafer without any electrical contact and a particular use of the Hecht relation. In this paper, the main features of this new instrument will be presented and the results obtained on different materials CdTe, CdZnTe or CdMnTe presented and discussed.
Very satisfying agreement has been observed between the results obtained with the new system and conventional methods based on the I-V and alpha spectroscopic measurements of detectors produced from these materials.
C1 [Sowinska, M.; Simon, H.; Raulo, A.] EURORAD, Strasbourg, France.
[Mycielski, A.; Kochanowska, D.; Witkowska-Baran, M.] Ist Phys, Warsaw, Poland.
[James, R. B.] Brookhaven Natl Lab, Upton, NY 11973 USA.
RP Sowinska, M (reprint author), EURORAD, Strasbourg, France.
EM m.sowinska@eurorad.com; adelaide.raulo@gmail.com; rjames@bnl.gov
RI Kochanowska, Dominika/P-8978-2016
FU European project LACX
FX Parte of this work was supported by European project LACX .
NR 4
TC 0
Z9 0
U1 2
U2 4
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1082-3654
BN 978-1-4673-0120-6
J9 IEEE NUCL SCI CONF R
PY 2011
BP 4829
EP 4832
PG 4
WC Engineering, Electrical & Electronic; Physics, Applied; Imaging Science
& Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging
SC Engineering; Physics; Imaging Science & Photographic Technology;
Radiology, Nuclear Medicine & Medical Imaging
GA BAM64
UT WOS:000304755605012
ER
PT S
AU Wang, CL
Clonts, LG
Cooper, RG
Crow, ML
Diawara, Y
Ellis, ED
Funk, L
Hannan, BW
Hodges, JP
Richards, JD
Riedel, RA
Hayward, JP
Workman, HE
Kline, C
AF Wang, C. L.
Clonts, L. G.
Cooper, R. G.
Crow, M. L.
Diawara, Y.
Ellis, E. D.
Funk, L.
Hannan, B. W.
Hodges, J. P.
Richards, J. D.
Riedel, R. A.
Hayward, J. P.
Workman, H. E.
Kline, C.
GP IEEE
TI Wavelength-Shifting-Fiber Scintillation Detectors for Thermal Neutron
Imaging at SNS
SO 2011 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE
(NSS/MIC)
SE IEEE Nuclear Science Symposium Conference Record
LA English
DT Proceedings Paper
CT IEEE Nuclear Science Symposium/Medical Imaging Conference (NSS/MIC)/18th
International Workshop on Room-Temperature Semiconductor X-Ray and
Gamma-Ray Detectors
CY OCT 23-29, 2011
CL Valencia, SPAIN
SP IEEE, Inst Elect & Elect Engineers Nucl & Plasma Sci Soc (IEEE NPSS)
AB We have developed a wavelength-Shiftingfiber Scintillator Detector (SSD) with a 0.3 m(2) area per module. Each module has 154 x 7 pixels and a 5 mm x 50 mm pixel size. Our goal is to design a large area neutron detector offering higher detection efficiency and higher count-rate capability for Time-Of-Flight (TOF) neutron diffraction in the Spallation Neutron Source (SNS). A ZnS/(LiF)-Li-6 scintillator combined with a novel fiber encoding scheme (v.3) was used to record the neutron events. A Cross-fiber Read-Out-Card (CROC) based digital-signal processing electronics and position-determination algorithm was applied for neutron imaging. Neutron-gamma discrimination was carried out using Pulse-Shape Discrimination (PSD). A sandwiched flat scintillator detector can have a detection efficiency close to He-3 tubes (about 10 atm). A single layer and sandwiched flat scintillator detectors have count rate capabilities of about 6,000 and 35,000 cps/cm(2), respectively, which can satisfy the count rate requirement of powder diffractometers at SNS. Detectors with v.3 fiber encoding have better image quality and higher spatial resolution than those with previous v.2 fiber encoding.
C1 [Wang, C. L.; Clonts, L. G.; Cooper, R. G.; Crow, M. L.; Diawara, Y.; Ellis, E. D.; Funk, L.; Hannan, B. W.; Hodges, J. P.; Richards, J. D.; Riedel, R. A.] Oak Ridge Natl Lab, Neutron Sci Directorate, Oak Ridge, TN 37831 USA.
[Hayward, J. P.] Univ Tennessee, Dept Nucl Engn, Knoxville, TN 37996 USA.
[Workman, H. E.; Kline, C.] PartTec Ltd, Bloomington, IN 47404 USA.
RP Wang, CL (reprint author), Oak Ridge Natl Lab, Neutron Sci Directorate, Oak Ridge, TN 37831 USA.
EM wangc@ornl.gov; clontslg@ornl.gov; cooperrg@ornl.gov; crowmljr@ornl.gov;
diawaray@ornl.gov; ellised@ornl.gov; funkll@ornl.gov; hannanbw@ornl.gov;
hodgesj@ornl.gov; richardsj@ornl.gov; riedelra@ornl.gov;
jhayward@utk.edu; herschel.workman@parttec.com; craig.kline@parttec.com
RI Hodges, Jason/K-1421-2013
FU UT-Batelle; LLC with the U.S. Department of Energy [DE-AC05-000R22725]
FX This manuscript has been authored by UT-Batelle, LLC under contract
DE-AC05-000R22725 with the U.S. Department of Energy
NR 10
TC 6
Z9 6
U1 1
U2 6
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1082-3654
BN 978-1-4673-0120-6
J9 IEEE NUCL SCI CONF R
PY 2011
BP 4877
EP 4882
PG 6
WC Engineering, Electrical & Electronic; Physics, Applied; Imaging Science
& Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging
SC Engineering; Physics; Imaging Science & Photographic Technology;
Radiology, Nuclear Medicine & Medical Imaging
GA BAM64
UT WOS:000304755605022
ER
PT S
AU Goodman, EL
Jimenez, E
Mizell, D
Al-Saffar, S
Adolf, B
Haglin, D
AF Goodman, Eric L.
Jimenez, Edward
Mizell, David
Al-Saffar, Sinan
Adolf, Bob
Haglin, David
BE Antoniou, G
Grobelnik, M
Simperl, E
Parsia, B
Plexousakis, D
DeLeenheer, P
Pan, J
TI High-Performance Computing Applied to Semantic Databases
SO SEMANTIC WEB: RESEARCH AND APPLICATIONS, PT II
SE Lecture Notes in Computer Science
LA English
DT Proceedings Paper
CT 8th Extended Semantic Web Conference (ESWC)
CY MAY 29-JUN 02, 2011
CL Heraklion, GREECE
SP Ontotext, Enterprise Collaborat & Interoperabil (COIN), Elsevier, Insemtives, Planet Data, EETN, IOS Press, Talis
DE Semantic Web; RDFS Inference; Cray XMT; Dictionary Encoding; SPARQL;
graph databases
AB To-date, the application of high-performance computing resources to Semantic Web data has largely focused on commodity hardware and distributed memory platforms. In this paper we make the case that more specialized hardware can offer superior scaling and close to an order of magnitude improvement in performance. In particular we examine the Cray XMT. Its key characteristics, a large, global shared-memory, and processors with a memory-latency tolerant design, offer an environment conducive to programming for the Semantic Web and have engendered results that far surpass current state of the art. We examine three fundamental pieces requisite for a fully functioning semantic database: dictionary encoding, RDFS inference, and query processing. We show scaling up to 512 processors (the largest configuration we had available), and the ability to process 20 billion triples completely in-memory.
C1 [Goodman, Eric L.; Jimenez, Edward] Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
[Mizell, David] Cray Inc, Seattle, WA 98164 USA.
[Al-Saffar, Sinan; Adolf, Bob; Haglin, David] Pacific Northwest Natl Lab, Richland, WA 99352 USA.
RP Goodman, EL (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
EM elgoodm@sandia.gov; esjimen@sandia.gov; dmizell@cray.com;
sinan.al-saffar@pnl.gov; robert.adolf@pnl.gov; david.haglin@pnl.gov
FU Center for Adaptive Supercomputing Software-Multithreaded Architectures
at the Dept. of Energy's Pacific Northwest National Laboratory
[CASS-MT]; Pacific Northwest National Laboratory is operated by Battelle
Memorial Institute [DE-ACO6-76RL01830]
FX This work was funded under the Center for Adaptive Supercomputing
Software-Multithreaded Architectures (CASS-MT) at the Dept. of Energys
Pacific Northwest National Laboratory. Pacific Northwest National
Laboratory is operated by Battelle Memorial Institute under Contract
DE-ACO6-76RL01830
NR 10
TC 7
Z9 8
U1 0
U2 0
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
SN 0302-9743
BN 978-3-642-21064-8
J9 LECT NOTES COMPUT SC
PY 2011
VL 6644
BP 31
EP 45
PG 15
WC Computer Science, Information Systems; Computer Science, Theory &
Methods
SC Computer Science
GA BBC89
UT WOS:000306485700003
ER
PT S
AU Bylaska, EJ
Salter-Blanc, AJ
Tratnyek, PG
AF Bylaska, Eric J.
Salter-Blanc, Alexandra J.
Tratnyek, Paul G.
BE Tratnyek, PG
Grundl, TJ
Haderlein, SB
TI One-Electron Reduction Potentials from Chemical Structure Theory
Calculations
SO AQUATIC REDOX CHEMISTRY
SE ACS Symposium Series
LA English
DT Proceedings Paper
CT 239th National Meeting of the American-Chemical-Society
CY MAR 21-25, 2010
CL San Francisco, CA
SP Amer Chem Soc, Div Chem Educ, Amer Chem Soc, Div Carbohydrate Chem, Amer Chem Soc, Sustainable Theme Comm, Amer Sugar Cane League, V Lab Inc, Amer Chem Soc
ID AQUEOUS-SOLUTION; NITROAROMATIC COMPOUNDS; REDOX POTENTIALS; AB-INITIO;
COMPUTATIONAL ELECTROCHEMISTRY; POLYCHLORINATED ETHYLENES; MEDIATED
REDUCTION; PULSE-RADIOLYSIS; RADICAL-ANIONS; COSMO-RS
AB Many redox reactions of importance in aquatic chemistry involve elementary steps that occur by single-electron transfer (SET). This step is often the first and rate limiting step in redox reactions of environmental contaminants, so there has been a great deal of interest in the corresponding one-electron reduction potentials (E 1). Although E-1 can be obtained by experimental methods, calculation from first-principles chemical structure theory is becoming an increasingly attractive alternative. Sufficient data are now available to perform a critical assessment of these methodsand their resultsfor two types of contaminant degradation reactions: dehalogenation of chlorinated aliphatic compounds (CACs) and reduction of nitro aromatic compounds (NACs). Early datasets containing E-1's for dehalogenation of CACs by dissociative SET contained a variety of errors and inconsistencies, but the preferred datasets show good agreement between values calculated from thermodynamic data and quantum mechanical models. All of the datasets with E(1)s for reduction of NACs by SET are relatively new, were calculated with similar methods, and yet yield a variety of systematic differences. Further analysis of these differences is likely to yield computational methods for E(1)s of NAC nitro reduction that are similar in reliability to those for CAC dechlorination. However, comparison of the E-1 data compiled here with those calculated with a more universal predictive model (like SPARC) highlight a number of challenges with implementation of models for predicting properties over a wide range of chemical structures.
C1 [Bylaska, Eric J.] Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA.
RP Bylaska, EJ (reprint author), Pacific NW Natl Lab, Environm Mol Sci Lab, POB 999, Richland, WA 99352 USA.
EM tratnyek@ebs.ogi.edu; tratnyek@ebs.ogi.edu
NR 88
TC 8
Z9 8
U1 6
U2 17
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 SIXTEENTH ST NW, WASHINGTON, DC 20036 USA
SN 0097-6156
BN 978-0-8412-2652-4
J9 ACS SYM SER
JI ACS Symp. Ser.
PY 2011
VL 1071
BP 37
EP 64
PG 28
WC Geochemistry & Geophysics
SC Geochemistry & Geophysics
GA BBA15
UT WOS:000306257800003
ER
PT S
AU O'Loughlin, EJ
Boyanov, MI
Antonopoulos, DA
Kemner, KM
AF O'Loughlin, Edward J.
Boyanov, Maxim I.
Antonopoulos, Dionysios A.
Kemner, Kenneth M.
BE Tratnyek, PG
Grundl, TJ
Haderlein, SB
TI Redox Processes Affecting the Speciation of Technetium, Uranium,
Neptunium, and Plutonium in Aquatic and Terrestrial Environments
SO AQUATIC REDOX CHEMISTRY
SE ACS Symposium Series
LA English
DT Proceedings Paper
CT 239th National Meeting of the American-Chemical-Society
CY MAR 21-25, 2010
CL San Francisco, CA
SP Amer Chem Soc, Div Chem Educ, Amer Chem Soc, Div Carbohydrate Chem, Amer Chem Soc, Sustainable Theme Comm, Amer Sugar Cane League, V Lab Inc, Amer Chem Soc
ID X-RAY-ABSORPTION; SULFATE-REDUCING BACTERIA; ZERO-VALENT IRON;
SHEWANELLA-ONEIDENSIS MR-1; ENRICHED HUMIC DERIVATIVES; MICROBIAL U(VI)
REDUCTION; LEPIDOCROCITE GAMMA-FEOOH; SOLID-WATER INTERFACE; GREEN RUST;
FE(III)-REDUCING BACTERIA
AB Understanding the processes controlling the chemical speciation of radionuclide contaminants is key for predicting their fate and transport in aquatic and terrestrial environments, and is a critical consideration in the design of nuclear waste storage facilities and the development of remediation strategies for management of nuclear legacy sites. The redox processes that influence the chemical speciation, and thus mobility, of Tc, U, Np, and Pu in surface and near-subsurface environments are reviewed, with a focus on coupled biotic-abiotic reactions driven by microbial activity. A case study of U-VI reduction under Fe-III- and sulfate-reducing conditions is presented, using a laboratory-based experimental system to simulate potential electron transfer pathways in natural systems. The results suggest that U-VI was reduced to nanoparticulate uraninite (UO2) and complexed mononuclear U-IV via multiple pathways including direct microbial reduction and coupled biotic-abiotic processes. These results highlight the potential importance of coupled biotic-abiotic processes in determining the speciation and mobility of Tc, U, Np, and Pu in natural and engineered environments.
C1 [O'Loughlin, Edward J.; Boyanov, Maxim I.; Antonopoulos, Dionysios A.; Kemner, Kenneth M.] Argonne Natl Lab, Biosci Div, Argonne, IL 60439 USA.
RP O'Loughlin, EJ (reprint author), Argonne Natl Lab, Biosci Div, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM oloughlin@anl.gov
RI O'Loughlin, Edward/C-9565-2013
OI O'Loughlin, Edward/0000-0003-1607-9529
NR 264
TC 12
Z9 12
U1 2
U2 44
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 SIXTEENTH ST NW, WASHINGTON, DC 20036 USA
SN 0097-6156
BN 978-0-8412-2652-4
J9 ACS SYM SER
JI ACS Symp. Ser.
PY 2011
VL 1071
BP 477
EP 517
PG 41
WC Geochemistry & Geophysics
SC Geochemistry & Geophysics
GA BBA15
UT WOS:000306257800022
ER
PT S
AU Glenn, S
Bell, PM
Benedetti, LR
Bradley, DK
Celeste, J
Heeter, R
Hagmann, C
Holder, J
Izumi, N
Kilkenny, JD
Kimbrough, J
Kyrala, GA
Simanovskaia, N
Tommasini, R
AF Glenn, S.
Bell, P. M.
Benedetti, L. R.
Bradley, D. K.
Celeste, J.
Heeter, R.
Hagmann, C.
Holder, J.
Izumi, N.
Kilkenny, J. D.
Kimbrough, J.
Kyrala, G. A.
Simanovskaia, N.
Tommasini, R.
BE Grim, GP
Schirato, RC
TI Advanced Gated X-Ray Imagers for Experiments at the National Ignition
Facility
SO PENETRATING RADIATION SYSTEMS AND APPLICATIONS XII
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Penetrating Radiation Systems and Applications XII
CY AUG 21-24, 2011
CL San Diego, CA
SP SPIE
DE X-Ray Imaging; Framing Cameras; Lasers; NIF
ID FRAMING CAMERAS; FUSION; GAIN
AB X-ray imaging is integral to the measurement of the properties of hot plasmas. To this end, a suite of gated x-ray imagers have been developed for use in a wide range of experiments at the National Ignition Facility (NIF). These instruments are sensitive to x-rays over the range of 0.7-90keV and can acquire images at 20ps intervals for source intensities ranging over several orders of magnitude. We review the design, technology, and construction of these instruments and present recent results obtained from NIF experiments in which gated x-ray imagers have played a key role.
The radiation environment associated with Inertial Confinement Fusion (ICF) experiments presents unique challenges for x-ray imaging. We report on the performance of gated imagers that have been optimized for this harsh environment and describe diagnostics to be deployed in the near future that will provide x-ray images of imploding ICF capsules in the presence of backgrounds associated with neutron yields above 10(16). Such images will provide crucial data that will enable even higher neutron yields and successful ignition.
C1 [Glenn, S.; Bell, P. M.; Benedetti, L. R.; Bradley, D. K.; Celeste, J.; Heeter, R.; Hagmann, C.; Holder, J.; Izumi, N.; Kimbrough, J.; Simanovskaia, N.; Tommasini, R.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
RP Glenn, S (reprint author), Lawrence Livermore Natl Lab, 7000 East Ave, Livermore, CA 94550 USA.
RI IZUMI, Nobuhiko/J-8487-2016; Tommasini, Riccardo/A-8214-2009
OI IZUMI, Nobuhiko/0000-0003-1114-597X; Tommasini,
Riccardo/0000-0002-1070-3565
NR 23
TC 6
Z9 6
U1 0
U2 7
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8754-4
J9 PROC SPIE
PY 2011
VL 8144
AR 814409
DI 10.1117/12.894328
PG 8
WC Engineering, Electrical & Electronic; Optics; Physics, Applied;
Radiology, Nuclear Medicine & Medical Imaging
SC Engineering; Optics; Physics; Radiology, Nuclear Medicine & Medical
Imaging
GA BBA28
UT WOS:000306289600009
ER
PT S
AU Hagmann, C
Ayers, J
Bell, PM
Bourgade, JL
Bradley, DK
Celeste, J
Cerjan, C
Darbon, S
Emig, J
Felker, B
Glenn, S
Holder, J
Izumi, N
Kilkenny, JD
Moody, J
Piston, K
Rousseau, A
Smalyuk, VA
Sorce, C
AF Hagmann, C.
Ayers, J.
Bell, P. M.
Bourgade, J. -L.
Bradley, D. K.
Celeste, J.
Cerjan, C.
Darbon, S.
Emig, J.
Felker, B.
Glenn, S.
Holder, J.
Izumi, N.
Kilkenny, J. D.
Moody, J.
Piston, K.
Rousseau, A.
Smalyuk, V. A.
Sorce, C.
BE Grim, GP
Schirato, RC
TI Radiation induced noise in x-ray imagers for high-yield inertial
confinement fusion experiments
SO PENETRATING RADIATION SYSTEMS AND APPLICATIONS XII
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Penetrating Radiation Systems and Applications XII
CY AUG 21-24, 2011
CL San Diego, CA
SP SPIE
DE x-ray imager; neutron background; CCD noise; radiation damage
AB The large fluence of 14-MeV neutrons produced in high-yield inertial confinement fusion (ICF) experiments creates a variety of backgrounds in x-ray imagers viewing the implosion. Secondary charged particles produce background light by Cherenkov emission, phosphor screen excitation and possibly scintillation in the optical components of the imager. In addition, radiation induced optical absorption may lead to attenuation of the signal. Noise is also produced directly in the image recorder itself (CCD or film) via energy deposition by electrons and heavy charged particles such as protons and alphas. We will present results from CCD background measurements and compare them to Monte Carlo calculations. In addition we show measurements of luminescence and long-term darkening for some of the glasses employed in imagers.
C1 [Hagmann, C.; Ayers, J.; Bell, P. M.; Bradley, D. K.; Celeste, J.; Cerjan, C.; Emig, J.; Felker, B.; Glenn, S.; Holder, J.; Izumi, N.; Moody, J.; Piston, K.; Smalyuk, V. A.; Sorce, C.] LLNL, Livermore, CA 94550 USA.
RP Hagmann, C (reprint author), LLNL, 7000 East Ave, Livermore, CA 94550 USA.
RI IZUMI, Nobuhiko/J-8487-2016
OI IZUMI, Nobuhiko/0000-0003-1114-597X
NR 15
TC 2
Z9 2
U1 1
U2 4
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8754-4
J9 PROC SPIE
PY 2011
VL 8144
AR 814408
DI 10.1117/12.894232
PG 6
WC Engineering, Electrical & Electronic; Optics; Physics, Applied;
Radiology, Nuclear Medicine & Medical Imaging
SC Engineering; Optics; Physics; Radiology, Nuclear Medicine & Medical
Imaging
GA BBA28
UT WOS:000306289600008
ER
PT S
AU Johnson, W
Antolak, A
Leung, KN
Raber, T
AF Johnson, Will
Antolak, Arlyn
Leung, Ka-Ngo
Raber, Tom
BE Grim, GP
Schirato, RC
TI Coaxial Microwave Neutron Interrogation Source
SO PENETRATING RADIATION SYSTEMS AND APPLICATIONS XII
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Penetrating Radiation Systems and Applications XII
CY AUG 21-24, 2011
CL San Diego, CA
SP SPIE
DE neutron generator; coaxial dipole ECR ion source; active neutron
interrogation; deuterium ion
AB A compact neutron generator is being developed based on a novel coaxial dipole permanent magnet electron cyclotron resonance (ECR) ion source. The ion source is capable of generating a high fraction of atomic ion species and can operate at low pressure. Multiple deuterium ion (D+) beamlets are extracted from the plasma ion source and accelerated to a beam-loaded titanium target creating 2.4 MeV neutrons as a result of the D-D fusion reaction at the target surface. This paper describes the design of the ECR-based neutron generator as well as reports on preliminary simulation and experimental results of the ion source performance.
C1 [Johnson, Will; Antolak, Arlyn; Raber, Tom] Sandia Natl Labs, Livermore, CA 94551 USA.
RP Johnson, W (reprint author), Sandia Natl Labs, Livermore, CA 94551 USA.
EM wcjohns@sandia.gov
NR 12
TC 1
Z9 1
U1 2
U2 4
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8754-4
J9 PROC SPIE
PY 2011
VL 8144
AR 81440D
DI 10.1117/12.895079
PG 7
WC Engineering, Electrical & Electronic; Optics; Physics, Applied;
Radiology, Nuclear Medicine & Medical Imaging
SC Engineering; Optics; Physics; Radiology, Nuclear Medicine & Medical
Imaging
GA BBA28
UT WOS:000306289600011
ER
PT S
AU Lemieux, DA
Baudet, C
Grim, GP
Barber, HB
Miller, BW
Fasje, D
Furenlid, LR
AF Lemieux, Daniel A.
Baudet, Camille
Grim, Gary P.
Barber, H. Bradford
Miller, Brian W.
Fasje, David
Furenlid, Lars R.
BE Grim, GP
Schirato, RC
TI Investigation of the possibility of gamma-ray diagnostic imaging of
target compression at NIF
SO PENETRATING RADIATION SYSTEMS AND APPLICATIONS XII
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Penetrating Radiation Systems and Applications XII
CY AUG 21-24, 2011
CL San Diego, CA
SP SPIE
DE NIF; gamma; scintillator; GEANT4; energy deposition; ignition; fusion
AB The National Ignition Facility at Lawrence Livermore National Laboratory is the world's leading facility to study the physics of igniting plasmas. Plasmas of hot deuterium and tritium, undergo d(t,n)alpha reactions that produce a 14.1 MeV neutron and 3.5 MeV a particle, in the center of mass. As these neutrons pass through the materials surrounding the hot core, they may undergo subsequent (n,x) reactions. For example, C-12(n,n'gamma) C-12 reactions occur in remnant debris from the polymer ablator resulting in a significant fluence of 4.44 MeV gamma-rays. Imaging of these gammas will enable the determination of the volumetric size and symmetry of the ablation; large size and high asymmetry is expected to correlate with poor compression and lower fusion yield. Results from a gamma-ray imaging system are expected to be complimentary to a neutron imaging diagnostic system already in place at the NIF. This paper describes initial efforts to design a gamma-ray imaging system for the NIF using the existing neutron imaging system as a baseline for study. Due to the cross-section and expected range of ablator areal densities, the gamma flux should be approximately 10-3 of the neutron flux. For this reason, care must be taken to maximize the efficiency of the gamma-ray imaging system because it will be gamma starved. As with the neutron imager, use of pinholes and/or coded apertures are anticipated. Along with aperture and detector design, the selection of an appropriate scintillator is discussed. The volume of energy deposition of the interacting 4.44 MeV gamma-rays is a critical parameter limiting the imaging system spatial resolution. The volume of energy deposition is simulated with GEANT4, and plans to measure the volume of energy deposition experimentally are described. Results of tests on a pixellated LYSO scintillator are also presented.
C1 [Lemieux, Daniel A.; Grim, Gary P.] Los Alamos Natl Labs, Div Phys, Los Alamos, NM 87545 USA.
RP Lemieux, DA (reprint author), Los Alamos Natl Labs, Div Phys, Los Alamos, NM 87545 USA.
RI Miller, Brian/A-3710-2014
OI Miller, Brian/0000-0002-3435-8268
FU NCRR NIH HHS [P41 RR014304]; NIBIB NIH HHS [P41 EB002035]
NR 3
TC 1
Z9 1
U1 1
U2 7
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8754-4
J9 PROC SPIE
PY 2011
VL 8144
AR 814407
DI 10.1117/12.895765
PG 10
WC Engineering, Electrical & Electronic; Optics; Physics, Applied;
Radiology, Nuclear Medicine & Medical Imaging
SC Engineering; Optics; Physics; Radiology, Nuclear Medicine & Medical
Imaging
GA BBA28
UT WOS:000306289600007
PM 23420688
ER
PT S
AU Smalyuk, VA
Ayers, J
Bell, PM
Bourgade, JL
Bradley, DK
Celeste, J
Cerjan, C
Darbon, S
Emig, J
Felker, B
Hagmann, C
Holder, J
Izumi, N
Kilkenny, JD
Moody, J
Piston, K
Rousseau, A
Sorce, C
Tommasini, R
AF Smalyuk, V. A.
Ayers, J.
Bell, P. M.
Bourgade, J. -L.
Bradley, D. K.
Celeste, J.
Cerjan, C.
Darbon, S.
Emig, J.
Felker, B.
Hagmann, C.
Holder, J.
Izumi, N.
Kilkenny, J. D.
Moody, J.
Piston, K.
Rousseau, A.
Sorce, C.
Tommasini, R.
BE Grim, GP
Schirato, RC
TI X-ray imaging in an environment with high-neutron background on National
Ignition Facility
SO PENETRATING RADIATION SYSTEMS AND APPLICATIONS XII
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Penetrating Radiation Systems and Applications XII
CY AUG 21-24, 2011
CL San Diego, CA
SP SPIE
DE x-ray imaging; neutron-induced backgrounds
ID FRAMING CAMERAS; REGION
AB X-ray imaging instruments will operate in a harsh ionizing radiation background environment on implosion experiments at the National Ignition Facility. These backgrounds consist of mostly neutrons and gamma rays produced by inelastic scattering of neutrons. Imaging systems based on x-ray framing cameras with film and CCD's have been designed to operate in such harsh neutron-induced background environments. Some imaging components were placed inside a shielded enclosure that reduced exposures to neutrons and gamma rays. Modeling of the signal and noise of the x-ray imaging system is presented.
C1 [Smalyuk, V. A.; Ayers, J.; Bell, P. M.; Bradley, D. K.; Celeste, J.; Cerjan, C.; Emig, J.; Felker, B.; Hagmann, C.; Holder, J.; Izumi, N.; Moody, J.; Piston, K.; Sorce, C.; Tommasini, R.] LLNL, Livermore, CA 94550 USA.
RP Smalyuk, VA (reprint author), LLNL, 7000 East Ave, Livermore, CA 94550 USA.
RI IZUMI, Nobuhiko/J-8487-2016; Tommasini, Riccardo/A-8214-2009
OI IZUMI, Nobuhiko/0000-0003-1114-597X; Tommasini,
Riccardo/0000-0002-1070-3565
NR 12
TC 4
Z9 4
U1 0
U2 3
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8754-4
J9 PROC SPIE
PY 2011
VL 8144
AR 81440N
DI 10.1117/12.894200
PG 6
WC Engineering, Electrical & Electronic; Optics; Physics, Applied;
Radiology, Nuclear Medicine & Medical Imaging
SC Engineering; Optics; Physics; Radiology, Nuclear Medicine & Medical
Imaging
GA BBA28
UT WOS:000306289600017
ER
PT S
AU Stange, S
Esch, EI
Burgett, EA
Del Sesto, RE
Muenchausen, RE
Taw, FL
Tovesson, FK
AF Stange, Sy
Esch, Ernst I.
Burgett, Eric A.
Del Sesto, Rico E.
Muenchausen, Ross E.
Taw, Felicia L.
Tovesson, Fredrik K.
BE Grim, GP
Schirato, RC
TI A fissionable scintillator for neutron flux monitoring
SO PENETRATING RADIATION SYSTEMS AND APPLICATIONS XII
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Penetrating Radiation Systems and Applications XII
CY AUG 21-24, 2011
CL San Diego, CA
SP SPIE
DE neutron flux; nanocomposite; liquid scintillator; fission detector;
thorium nitrate
AB Neutron flux from linear accelerators is conventionally monitored using ionization chambers containing one or more foils thinly coated with a fissionable or fissile material. Due to the long pulse rise times resulting from the ionization mechanism, fission chambers are prone to pulse pile-up in high-neutron-flux environments. In addition, their relatively low efficiencies result in extremely long counting times in low-flux environments. To ameliorate these effects, a novel type of neutron flux monitor, consisting of fissionable material loaded in a liquid scintillator, has been developed, characterized, and tested in the beam line at the Los Alamos Neutron Science Center. This is a rugged, cost-efficient detector with high efficiency, a short signal rise time, and the ability to be used in low neutron-flux environments. Compared with a conventional fission chamber, the fissionable scintillator displays a significantly higher event rate. Related research on nanocomposite scintillators for gamma-ray detection suggests the possibility of extending this approach by synthesizing fissionable material nanoparticles and loading them into an organic scintillator. We will present results of the design and characterization process and an analysis of the results of the beam line experiments.
C1 [Stange, Sy; Esch, Ernst I.; Del Sesto, Rico E.; Muenchausen, Ross E.; Taw, Felicia L.; Tovesson, Fredrik K.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Stange, S (reprint author), Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
OI Esch, Ernst/0000-0002-5179-0415; Taw, Felicia/0000-0001-6993-2891
NR 5
TC 0
Z9 0
U1 0
U2 2
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8754-4
J9 PROC SPIE
PY 2011
VL 8144
AR 814403
DI 10.1117/12.894708
PG 7
WC Engineering, Electrical & Electronic; Optics; Physics, Applied;
Radiology, Nuclear Medicine & Medical Imaging
SC Engineering; Optics; Physics; Radiology, Nuclear Medicine & Medical
Imaging
GA BBA28
UT WOS:000306289600003
ER
PT S
AU Deline, CA
del Cueto, JA
Albin, DS
Rummel, SR
AF Deline, Chris A.
del Cueto, Joseph A.
Albin, David S.
Rummel, Steve R.
BE Dhere, NG
Wohlgemuth, JH
Lynn, KW
TI Metastable electrical characteristics of polycrystalline thin-film
photovoltaic modules upon exposure and stabilization
SO RELIABILITY OF PHOTOVOLTAIC CELLS, MODULES, COMPONENTS, AND SYSTEMS IV
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Reliability of Photovoltaic Cells, Modules, Components and
Systems IV
CY AUG 22-25, 2011
CL San Diego, CA
SP SPIE
DE Thin film; Photovoltaic; Transients; Metastability; CdTe; CIGS; IEC
61646
ID SOLAR-CELLS; METASTABILITIES
AB The significant features of a series of stabilization experiments conducted at the National Renewable Energy Laboratory (NREL) between May 2009 and the present are reported. These experiments evaluated a procedure to stabilize the measured performance of thin-film polycrystalline cadmium telluride (CdTe) and copper indium gallium diselenide (CIGS) thin-film photovoltaic (PV) modules. The current-voltage (I-V) characteristics of CdTe and CIGS thin-film PV devices and modules exhibit transitory changes in electrical performance after thermal exposure in the dark and/or bias and light exposures. We present the results of our case studies of module performance versus exposure: light-soaked at 65 degrees C; exposed in the dark under forward bias at 65 inverted perpendicular C; and, finally, longer-term outdoor exposure. We find that stabilization can be achieved to varying degrees using either light-soaking or dark bias methods and that the existing IEC 61646 light-soaking interval may be appropriate for CdTe and CIGS modules with one caveat: it is likely that at least three exposure intervals are required for stabilization.
C1 [Deline, Chris A.; del Cueto, Joseph A.; Albin, David S.; Rummel, Steve R.] Natl Renewable Energy Lab, Golden, CO 80401 USA.
RP Deline, CA (reprint author), Natl Renewable Energy Lab, 1617 Cole Blvd, Golden, CO 80401 USA.
EM chris.deline@nrel.gov; jdelcueto@abound.com
RI Deline, Christopher/K-5998-2013
OI Deline, Christopher/0000-0002-9867-8930
NR 21
TC 0
Z9 0
U1 0
U2 2
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8722-3
J9 PROC SPIE
PY 2011
VL 8112
AR 81120T
DI 10.1117/12.893813
PG 14
WC Energy & Fuels; Engineering, Electrical & Electronic; Optics
SC Energy & Fuels; Engineering; Optics
GA BBA29
UT WOS:000306290300027
ER
PT S
AU Graham, RL
Clark, LA
Albin, DS
AF Graham, Rebekah L.
Clark, Laura A.
Albin, David S.
BE Dhere, NG
Wohlgemuth, JH
Lynn, KW
TI A novel approach for correlating capacitance data with performance
during thin-film device stress studies
SO RELIABILITY OF PHOTOVOLTAIC CELLS, MODULES, COMPONENTS, AND SYSTEMS IV
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Reliability of Photovoltaic Cells, Modules, Components and
Systems IV
CY AUG 22-25, 2011
CL San Diego, CA
SP SPIE
DE chemometrics; CdTe solar cell; durability; reliability; efficiency;
capacitance-voltage measurement; data mining; algorithm
ID CDTE SOLAR-CELLS; STABILITY
AB A new data mining algorithm was developed to identify the strongest correlations between capacitance data (measured between -1.5 V and +0.49 V) and first(-) and second-level performance metrics (efficiency [eta%], open-circuit voltage [V-OC], short-circuit current density [J(SC)], and fill-factor [FF]) during the stress testing of voltage-stabilized CdS/CdTe devices. When considering only correlations between first- and second-level metrics, 96.5% of the observed variation in eta% was attributed to FF. The overall decrease in V-OC after 1,000 hours of open-circuit, light-soak stress at 60 degrees C was about -1.5%. The most consistent correlation identified by the algorithm in this particular experiment between FF and third-level metric capacitance data during stress testing was between FF and hysteresis in the apparent CdTe acceptor density (N-a) between reverse and forward voltages scans, as determined in forward voltage bias. Since the contribution of back-contact capacitance to total capacitance increases with increasing positive voltage, this result suggests that degradation in FF was associated with decreases in N-a hysteresis near the CdTe/back contact interface.
C1 [Graham, Rebekah L.; Albin, David S.] Natl Renewable Energy Lab, Golden, CO 80401 USA.
RP Graham, RL (reprint author), Natl Renewable Energy Lab, 1617 Cole Blvd, Golden, CO 80401 USA.
EM Rebekah.graham@nrel.gov
NR 10
TC 2
Z9 2
U1 0
U2 4
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8722-3
J9 PROC SPIE
PY 2011
VL 8112
AR 81120V
DI 10.1117/12.896648
PG 8
WC Energy & Fuels; Engineering, Electrical & Electronic; Optics
SC Energy & Fuels; Engineering; Optics
GA BBA29
UT WOS:000306290300028
ER
PT S
AU Pern, FJJ
Noufi, R
AF Pern, F. J. John
Noufi, Rommel
BE Dhere, NG
Wohlgemuth, JH
Lynn, KW
TI CHARACTERIZATION of damp-heat degradation of CuInGaSe2 solar cell
components and devices by (electrochemical) impedance spectroscopy
SO RELIABILITY OF PHOTOVOLTAIC CELLS, MODULES, COMPONENTS, AND SYSTEMS IV
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Reliability of Photovoltaic Cells, Modules, Components and
Systems IV
CY AUG 22-25, 2011
CL San Diego, CA
SP SPIE
DE (electrochemical) impedance spectroscopy (ECIS); damp heat degradation;
CuInGaSe2 (CIGS) solar cell; AlNi contact grid; Al-doped ZnO; Mo base
electrode; conducting silver paste
AB This work evaluated the capability of (electrochemical) impedance spectroscopy (IS, or ECIS as used here) to monitor damp heat (DH) stability of contact materials, CuInGaSe2 (CIGS) solar cell components, and devices. Cell characteristics and its variation of the CIGS devices were also examined by the ECIS. Bare and encapsulated sample sets were separately prepared and exposed in an environmental chamber at 85 degrees C and 85% relative humidity (RH). The ECIS results from bare samples tested within 50-100 h of DH exposure allowed the determination of the use of a conducting Ag paste and a low-melting-point solder alloy for making a DH-stable external connection with Au wires. Bare Mo and AlNi grid degraded (corroded) rapidly while Ni was DH-stable. The moisture-dampened Al-doped ZnO (AZO) and bilayer ZnO (BZO) likely underwent hydrolytic "capacitor-forming" reaction by DH, resulting in "transient" behavior of very high resistance in ECIS that was not detected by four-point probe. Using an encapsulation test structure that allowed moisture ingress control, DH-induced degradation (resistance increase) rates of BZO on glass decreased from 0.21 ohm/h using a moisture-permeable Tedlar/Polyester/Tedlar (TPT) backsheet to 1.0 x 10(-3) ohm/h using a moisture barrier FG-200 film, while Mo on glass did not exhibit the same conducting degradation and corrosion as the bare samples after over 1270 h DH exposure. CIGS solar cells encapsulated with a TPT backsheet degraded irregularly over 774 h DH exposure. Key resistance and capacitance parameters extracted by curve fitting of impedance data clearly showed the variation and impact of DH exposure on cell characteristics. Profound "depression" or shorting of the "p-n junction capacitor" by DH was evident. ECIS results are shown to correlate reasonably well with the solar cells' current-voltage (I-V) degrading trends. Furthermore, ECIS analysis was capable of differentiating cell degradation due to "junction capacitor" shorting, damage or breakdown from that due to electrical conduction failure on AlNi/BZO layers.
C1 [Pern, F. J. John; Noufi, Rommel] Natl Renewable Energy Lab, Natl Ctr Photovolta, Golden, CO 80401 USA.
RP Pern, FJJ (reprint author), Natl Renewable Energy Lab, Natl Ctr Photovolta, 1617 Cole Blvd, Golden, CO 80401 USA.
NR 21
TC 2
Z9 2
U1 4
U2 9
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8722-3
J9 PROC SPIE
PY 2011
VL 8112
AR 81120S
DI 10.1117/12.895918
PG 14
WC Energy & Fuels; Engineering, Electrical & Electronic; Optics
SC Energy & Fuels; Engineering; Optics
GA BBA29
UT WOS:000306290300026
ER
PT S
AU von Roedern, B
AF von Roedern, Bolko
BE Dhere, NG
Wohlgemuth, JH
Lynn, KW
TI Which Factors need to be Improved for Array Models to Correctly Predict
"Real-World" Performance?
SO RELIABILITY OF PHOTOVOLTAIC CELLS, MODULES, COMPONENTS, AND SYSTEMS IV
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Reliability of Photovoltaic Cells, Modules, Components and
Systems IV
CY AUG 22-25, 2011
CL San Diego, CA
SP SPIE
AB This paper poses the question how statistically varying data should be handled by models and how the output is sometimes interpreted by human preference? It asks the question whether modeled data or real-world data are of greater importance and when there are discrepancies between model and experiment. This question is asked in the context of what is more important, having a model that correctly predicts real-world energy generation or cost of a PV array or the "typical" generation or cost for such array? Real-world performance can only be predicted within some uncertainty level. Are good average or individual values obtained when the real-world energy output or cost of a single system are predicted ? Two or more input factors into a single output will also often lead to increased variation. The point is made that greater accuracy of modeled and experimental data may or may not result in deeper insight into the generation capability of a solar array. The answer to the question posed in the title of this contribution is: Be as accurate as possible, but always expect variation in both the calculated and experimental results and be cognizant of the difference between typical and actual values.
C1 Natl Renewable Energy Lab, Natl Ctr Photovolta, Golden, CO 80401 USA.
RP von Roedern, B (reprint author), Natl Renewable Energy Lab, Natl Ctr Photovolta, 1617 Cole Blvd, Golden, CO 80401 USA.
NR 5
TC 0
Z9 0
U1 0
U2 1
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8722-3
J9 PROC SPIE
PY 2011
VL 8112
AR 811205
DI 10.1117/12.897191
PG 6
WC Energy & Fuels; Engineering, Electrical & Electronic; Optics
SC Energy & Fuels; Engineering; Optics
GA BBA29
UT WOS:000306290300005
ER
PT S
AU Wohlgemuth, J
Kempe, M
Miller, D
Kurtz, S
AF Wohlgemuth, John
Kempe, Michael
Miller, David
Kurtz, Sarah
BE Dhere, NG
Wohlgemuth, JH
Lynn, KW
TI Developing Standards for PV Packaging Materials
SO RELIABILITY OF PHOTOVOLTAIC CELLS, MODULES, COMPONENTS, AND SYSTEMS IV
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Reliability of Photovoltaic Cells, Modules, Components and
Systems IV
CY AUG 22-25, 2011
CL San Diego, CA
SP SPIE
DE Photovoltaic Modules; PV Standards; Module Materials
AB The initial qualification standards for photovoltaic modules were designed to help develop a product that is safe, and able to survive reasonably long time periods when deployed in the field. To accomplish this, TC-82 of the International Electro-Technical Commission (IEC), developed and published module qualification standards (IEC 61215 for crystalline Si, IEC 61646 for thin films and IEC 62108 for concentrating modules) and a module safety standard (IEC 61730 -1 and 2). As PV has developed and the technology has become better understood, the properties of materials used in the module package play an increasingly important part in achieving long-term durability and safety. Certain basic properties are required of the materials in order for the modules to be safe and to be able to survive in the field for 25 years or more.
Therefore Working Group 2 (Modules) of TC-82 began work to develop new material-level standards for PV that will utilize existing standards, whenever available, but tailored for characterizing the properties that are important for PV modules and modified to take into account the environmental conditions specific to PV applications. The goal is to provide a uniform approach to characterizing candidate materials, providing the necessary information to designers selecting materials for use in their PV products as well as to certification bodies assessing the quality and safety of the products made from these materials. This paper will describe the details of the effort underway to determine what PV material standards are necessary and the progress on developing those standards.
C1 [Wohlgemuth, John; Kempe, Michael; Miller, David; Kurtz, Sarah] Natl Renewable Energy Lab, Golden, CO 80401 USA.
RP Wohlgemuth, J (reprint author), Natl Renewable Energy Lab, 1617 Cole Blvd, Golden, CO 80401 USA.
NR 5
TC 0
Z9 0
U1 1
U2 5
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8722-3
J9 PROC SPIE
PY 2011
VL 8112
AR 81120A
DI 10.1117/12.892794
PG 8
WC Energy & Fuels; Engineering, Electrical & Electronic; Optics
SC Energy & Fuels; Engineering; Optics
GA BBA29
UT WOS:000306290300010
ER
PT S
AU Naus, DJ
AF Naus, D. J.
BE LHostis, V
Philipose, K
Gens, R
Galle, C
TI Overview of activities in the US related to continued service of nuclear
power plant concrete structures
SO AMP 2010 - INTERNATIONAL WORKSHOP ON AGEING MANAGEMENT OF NUCLEAR POWER
PLANTS AND WASTE DISPOSAL STRUCTURES (EFC EVENT 334)
SE EPJ Web of Conferences
LA English
DT Proceedings Paper
CT International Workshop on Ageing Management of Nuclear Power Plants and
Waste Disposal Structures (AMP)
CY NOV 07-10, 2010
CL Toronto, CANADA
SP Atom Energy Canada Ltd (AECL), Commissariat Energie Atomique & Energies Alternat (CEA)
ID RELIABILITY
AB Safety-related nuclear power plant concrete structures are described and commentary on continued service assessments of these structures is provided. In-service inspection and testing requirements in the U.S. are summarized. The license renewal process in the U.S. is outlined and its current status noted. A summary of operating experience related to U.S. nuclear power plant concrete structures is presented. Several candidate areas are identified where additional research would be of benefit to aging management of NPP concrete structures. Finally current ORNL activities related to aging-management of concrete structures are outlined: development of operating experience database, application of structural reliability theory, and compilation of elevated temperature concrete material property data and information.
C1 Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
RP Naus, DJ (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
EM nausdj@ornl.gov
NR 69
TC 0
Z9 0
U1 0
U2 2
PU E D P SCIENCES
PI CEDEX A
PA 17 AVE DU HOGGAR PARC D ACTIVITES COUTABOEUF BP 112, F-91944 CEDEX A,
FRANCE
SN 2100-014X
J9 EPJ WEB CONF
PY 2011
VL 12
AR 01001
DI 10.1051/epjconf/20111201001
PG 19
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA BAX16
UT WOS:000305915300001
ER
PT S
AU Koch, V
Bzdak, A
Liao, JF
AF Koch, Volker
Bzdak, Adam
Liao, Jinfeng
BE Biro, TS
Barnafoldi, GG
TI Facets of the QCD Phase-Diagram
SO HCBM 2010 - INTERNATIONAL WORKSHOP ON HOT AND COLD BARYONIC MATTER
SE EPJ Web of Conferences
LA English
DT Proceedings Paper
CT International Workshop on Hot and Cold Baryonic Matter (HCBM)
CY AUG 15-20, 2010
CL Budapest, HUNGARY
SP Helmholtz Int Ctr FAIR (HIC FAIR), Landes-Offens Entwicklung Wissenschaftlich-okonomischer Exzellenz (LOEWE), European Phys Journal, HAS, KFKI Res Inst Particle & Nucl Phys (KFKI RMKI)
AB In this contribution we will discuss two aspects of the matter created in ultra-relativistic heavy ion collisions. First we will attempt to define a universal measure for the fluidity of a substance, which will allow a correct comparison between the fluidity of a Quark Gluon Plasma and any well known substance. Second we will discuss current measurements of particle correlations and their implication for possible local parity violation.
C1 [Koch, Volker; Bzdak, Adam] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Liao, Jinfeng] Brookhaven Natl Lab, Upton, NY 11796 USA.
RP Koch, V (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
EM vkoch@lbl.gov; ABzdak@lbl.gov; JLiao@bnl.gov
FU U.S. Department of Energy [DE-AC03-76SF00098, DE-AC02-98CH10886]; Polish
Ministry of Science and Higher Education [N202 125437]
FX This work was supported by the Director, Office of Science, Office of
High Energy and Nuclear Physics, Division of Nuclear Physics, and by the
Office of Basic Energy Sciences, Division of Nuclear Sciences, of the
U.S. Department of Energy under Contract No. DE-AC03-76SF00098 and
Contract No. DOE Contract No. DE-AC02-98CH10886 as well as by the Polish
Ministry of Science and Higher Education, grant No. N202 125437.
NR 28
TC 0
Z9 0
U1 0
U2 1
PU E D P SCIENCES
PI CEDEX A
PA 17 AVE DU HOGGAR PARC D ACTIVITES COUTABOEUF BP 112, F-91944 CEDEX A,
FRANCE
SN 2100-014X
J9 EPJ WEB CONF
PY 2011
VL 13
AR 02001
DI 10.1051/epjconf/20111302001
PG 6
WC Physics, Nuclear; Physics, Particles & Fields
SC Physics
GA BAX14
UT WOS:000305911800003
ER
PT S
AU Dameron, A
Christensen, S
Galante, M
Berry, J
Gillaspie, D
Perkins, J
Ginley, D
Gennett, T
AF Dameron, Arrelaine
Christensen, Steven
Galante, Marie
Berry, Joseph
Gillaspie, Dane
Perkins, John
Ginley, David
Gennett, Thomas
BE Eldada, LA
TI Conductive Conformal Thin Film Coatings for Textured PV, ALD versus
Sputtering
SO THIN FILM SOLAR TECHNOLOGY III
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Thin Film Solar Technology III/SPIE Solar Energy +
Technology symposium
CY AUG 21-22, 2011
CL San Diego, CA
SP SPIE
DE Transparent conductive oxides; magnetron sputtering; Atomic layer
deposition; conformal coatings
AB Next-generation photovoltaic structures require well-established deposition routes to conformal and conducting materials with defined chemical, physical and electronic composition. This work reports on the preliminary findings associated with conformal metal oxides on structured substrates including:
1) Discovery of sputtering process conditions that can be made semi-conformal when combined with in-situ techniques such as ion-beam milling for honing surface structures;
2) Development of relevant ALD chemistries that are materials-properties competitive with sputtered materials;
3) Evaluation of chemically-functionalized surface structures that maximize surface area but are structurally tailored for efficient gas flow and to minimize line-of-sight shadowing.
The initial experiments have centered on combinations of amorphous and crystalline indium oxide, zinc oxide, aluminum zinc oxide, indium tin oxide, fluorinated tin oxide and indium zinc oxide. This presentation will describe these initial experiments and elucidate key physiochemical nature of the deposited thin films.
C1 [Dameron, Arrelaine; Christensen, Steven; Galante, Marie; Berry, Joseph; Gillaspie, Dane; Perkins, John; Ginley, David; Gennett, Thomas] Natl Renewable Energy Lab, Golden, CO 80401 USA.
RP Dameron, A (reprint author), Natl Renewable Energy Lab, 1617 Cole Blvd, Golden, CO 80401 USA.
NR 5
TC 0
Z9 0
U1 2
U2 11
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-819-48720-9
J9 PROC SPIE
PY 2011
VL 8110
AR 81100M
DI 10.1117/12.894272
PG 6
WC Materials Science, Coatings & Films; Optics; Physics, Applied
SC Materials Science; Optics; Physics
GA BBA40
UT WOS:000306294100012
ER
PT S
AU Hersh, PA
Curtis, CJ
van Hest, MFAM
Habas, SE
Miedaner, A
Ginley, DS
Stanbery, BJ
AF Hersh, Peter A.
Curtis, Calvin J.
van Hest, Maikel F. A. M.
Habas, Susan E.
Miedaner, Alexander
Ginley, David S.
Stanbery, Billy J.
BE Eldada, LA
TI Solution-based precursors in conjunction with rapid optical processing
for high-quality hybrid CIGS
SO THIN FILM SOLAR TECHNOLOGY III
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Thin Film Solar Technology III/SPIE Solar Energy +
Technology Symposium
CY AUG 21-22, 2011
CL San Diego, CA
SP SPIE
AB HelioVolt Corporation is currently developing Copper Indium Gallium Selenide (CIGS) products using a solution-based deposition of precursor films followed by rapid optical processing (ROP) to make CIGS. The ROP process takes less than 1 minute of heating to convert the precursor stack to CIGS. Device made with ROP rival performance of device processed using field assisted simultaneous synthesis and transfer (FASST(R)) processing.
C1 [Hersh, Peter A.; Stanbery, Billy J.] HelioVolt Corp, 6301-8 E Stassney Lane, Austin, TX 78744 USA.
[Curtis, Calvin J.; van Hest, Maikel F. A. M.; Habas, Susan E.; Miedaner, Alexander; Ginley, David S.] Natl Renewable Energy Lab, Golden, CO 80401 USA.
RP Hersh, PA (reprint author), HelioVolt Corp, 6301-8 E Stassney Lane, Austin, TX 78744 USA.
NR 4
TC 0
Z9 0
U1 0
U2 6
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-819-48720-9
J9 PROC SPIE
PY 2011
VL 8110
AR 811007
DI 10.1117/12.890217
PG 7
WC Materials Science, Coatings & Films; Optics; Physics, Applied
SC Materials Science; Optics; Physics
GA BBA40
UT WOS:000306294100002
ER
PT S
AU Alcorta, M
Rehm, KE
Back, BB
Bedoor, S
Bertone, PF
Deibel, CM
DiGiovine, B
Esbensen, H
Greene, JP
Hoffman, CR
Jiang, CL
Lighthall, JC
Marley, ST
Pardo, RC
Paul, M
Rogers, AM
Ugalde, C
Wuosmaa, AH
AF Alcorta, M.
Rehm, K. E.
Back, B. B.
Bedoor, S.
Bertone, P. F.
Deibel, C. M.
DiGiovine, B.
Esbensen, H.
Greene, J. P.
Hoffman, C. R.
Jiang, C. L.
Lighthall, J. C.
Marley, S. T.
Pardo, R. C.
Paul, M.
Rogers, A. M.
Ugalde, C.
Wuosmaa, A. H.
BE Schmitt, CH
Navin, A
Rejmund, M
Lacroix, D
Goutte, H
TI Fusion reactions with the one-neutron halo nucleus C-15
SO 5TH INTERNATIONAL CONFERENCE FUSION11
SE EPJ Web of Conferences
LA English
DT Proceedings Paper
CT 5th International Conference on FUSION11
CY MAY 02-06, 2011
CL St Malo, FRANCE
ID INTERACTION CROSS-SECTIONS; RADIOACTIVE ION-BEAMS; COULOMB BARRIER;
ENERGIES; FISSION; BREAKUP; REGION; RADII
AB We have for the first time studied the fusion-fission excitation functions for the systems C-14,C-15 + Th-232 at energies in the vicinity of the Coulomb barrier. At energies below the barrier, the fusion cross section of the halo nucleus C-15 showed an enhancement by a factor of 2-5, while the fusion cross section for C-14 shows a similar trend to that of C-12,C-13.
C1 [Alcorta, M.; Rehm, K. E.; Back, B. B.; Bertone, P. F.; Deibel, C. M.; DiGiovine, B.; Esbensen, H.; Greene, J. P.; Hoffman, C. R.; Jiang, C. L.; Lighthall, J. C.; Marley, S. T.; Pardo, R. C.; Rogers, A. M.; Ugalde, C.] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA.
RP Alcorta, M (reprint author), Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA.
EM malcorta@anl.gov
RI Alcorta, Martin/G-7107-2011
OI Alcorta, Martin/0000-0002-6217-5004
NR 33
TC 0
Z9 0
U1 0
U2 0
PU E D P SCIENCES
PI CEDEX A
PA 17 AVE DU HOGGAR PARC D ACTIVITES COUTABOEUF BP 112, F-91944 CEDEX A,
FRANCE
SN 2100-014X
J9 EPJ WEB CONF
PY 2011
VL 17
AR 13003
DI 10.1051/epjconf/20111713003
PG 4
WC Physics, Nuclear
SC Physics
GA BAX19
UT WOS:000305937100058
ER
PT S
AU Back, BB
AF Back, B. B.
CA Helios Collaboration
BE Schmitt, CH
Navin, A
Rejmund, M
Lacroix, D
Goutte, H
TI Recent results from HELIOS
SO 5TH INTERNATIONAL CONFERENCE FUSION11
SE EPJ Web of Conferences
LA English
DT Proceedings Paper
CT 5th International Conference on FUSION11
CY MAY 02-06, 2011
CL St Malo, FRANCE
ID STATES; BEAMS; CORE
AB Transfer and inelastic scattering reactions using light-ion beams and stable or long-lived targets have traditionally provided detailed information on the structure of nuclei near the line of beta stability. Such studies can now be extended to nuclei away from the line of beta-stability as radioactive beams are becoming available at a number of facilities around the world, including the CARIBU facility at Argonne. These measurements must, however, be carried out in inverse kinematics, resulting in a loss of the effective experimental resolution when conventional detection schemes are employed. The HELIOS spectrometer is based on a new concept, that is especially well suited for such studies by reducing the resolution problem, providing simple particle identification, and giving high detection efficiency with moderate Si detector area. In this talk, the HELIOS concept and results from the first series of experiments will be presented.
C1 [Back, B. B.; Helios Collaboration] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA.
RP Back, BB (reprint author), Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA.
EM back@anl.gov
NR 23
TC 0
Z9 0
U1 0
U2 0
PU E D P SCIENCES
PI CEDEX A
PA 17 AVE DU HOGGAR PARC D ACTIVITES COUTABOEUF BP 112, F-91944 CEDEX A,
FRANCE
SN 2100-014X
J9 EPJ WEB CONF
PY 2011
VL 17
AR 14001
DI 10.1051/epjconf/20111714001
PG 6
WC Physics, Nuclear
SC Physics
GA BAX19
UT WOS:000305937100061
ER
PT S
AU Jiang, CL
AF Jiang, C. L.
BE Schmitt, CH
Navin, A
Rejmund, M
Lacroix, D
Goutte, H
TI Heavy-ion fusion hindrance in systems with positive Q value
SO 5TH INTERNATIONAL CONFERENCE FUSION11
SE EPJ Web of Conferences
LA English
DT Proceedings Paper
CT 5th International Conference on FUSION11
CY MAY 02-06, 2011
CL St Malo, FRANCE
ID ACCRETING NEUTRON-STAR; CROSS-SECTION; ENERGIES; C-13&C-13; NUCLEI
AB The detailed behavior of the newly observed heavy-ion fusion hindrance for systems with positive Q value is not yet known well. Does an S factor maximum occur also for these systems at very low energies? This is still an open question and is discussed in this presentation of the experimental activities.
C1 Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA.
RP Jiang, CL (reprint author), Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA.
EM jiang@phy.anl.gov
NR 43
TC 2
Z9 2
U1 0
U2 1
PU E D P SCIENCES
PI CEDEX A
PA 17 AVE DU HOGGAR PARC D ACTIVITES COUTABOEUF BP 112, F-91944 CEDEX A,
FRANCE
SN 2100-014X
J9 EPJ WEB CONF
PY 2011
VL 17
AR 01002
DI 10.1051/epjconf/20111701002
PG 6
WC Physics, Nuclear
SC Physics
GA BAX19
UT WOS:000305937100002
ER
PT S
AU Liang, JF
AF Liang, J. F.
BE Schmitt, CH
Navin, A
Rejmund, M
Lacroix, D
Goutte, H
TI Studies of ear-barrier fusion induced by neutron-rich nuclei at HRIBF
SO 5TH INTERNATIONAL CONFERENCE FUSION11
SE EPJ Web of Conferences
LA English
DT Proceedings Paper
CT 5th International Conference on FUSION11
CY MAY 02-06, 2011
CL St Malo, FRANCE
ID EVEN-EVEN NUCLIDES; COULOMB BARRIER; CROSS-SECTIONS; HEAVY; PROBABILITY;
COUPLINGS
AB Fusion induced by neutron-rich radioactive beams is a topic of current interest. The findings will be useful for using radioactive beams to produce superheavy elements. Results from recent measurements performed with neutron-rich radioactive Sn and Te beams are presented. Coupled-channels calculations were carried out to study the observed sub-barrier fusion enhancement. The fusion probability in Sn on Ni was probed by comparing the evaporation residue cross sections at high excitation energies.
C1 Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA.
RP Liang, JF (reprint author), Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA.
EM liangjf@ornl.gov
NR 20
TC 3
Z9 3
U1 0
U2 1
PU E D P SCIENCES
PI CEDEX A
PA 17 AVE DU HOGGAR PARC D ACTIVITES COUTABOEUF BP 112, F-91944 CEDEX A,
FRANCE
SN 2100-014X
J9 EPJ WEB CONF
PY 2011
VL 17
AR 02002
DI 10.1051/epjconf/20111702002
PG 6
WC Physics, Nuclear
SC Physics
GA BAX19
UT WOS:000305937100006
ER
PT S
AU Scarlassara, F
Montagnoli, G
Fioretto, E
Jiang, CL
Stefanini, AM
Corradi, L
Back, BB
Patel, N
Rehm, KE
Sewerinyak, D
Singh, PP
Tang, XD
Deibel, CM
Di Giovine, B
Greene, JP
Henderson, HD
Notani, M
Marley, ST
Zhu, S
AF Scarlassara, F.
Montagnoli, G.
Fioretto, E.
Jiang, C. -L.
Stefanini, A. M.
Corradi, L.
Back, B. B.
Patel, N.
Rehm, K. E.
Sewerinyak, D.
Singh, Pushpendra P.
Tang, X. D.
Deibel, C. M.
Di Giovine, B.
Greene, J. P.
Henderson, H. D.
Notani, M.
Marley, S. T.
Zhu, S.
BE Schmitt, CH
Navin, A
Rejmund, M
Lacroix, D
Goutte, H
TI Fusion of Ni-60+Mo-100 below barrier.
SO 5TH INTERNATIONAL CONFERENCE FUSION11
SE EPJ Web of Conferences
LA English
DT Proceedings Paper
CT 5th International Conference on FUSION11
CY MAY 02-06, 2011
CL St Malo, FRANCE
AB The fusion cross section of Ni-60 + Mo-100 has been measured down to microbarn level, looking for hindrance at low energy, in a system with positive Q-values for neutron transfer. The measured cross sections look similar to those of the nearby Ni-64 + Mo-100, but no conclusive statement can be made at this stage, as to the onset of hindrance in this system.
C1 [Scarlassara, F.; Montagnoli, G.] Univ Padua, Dipartimento Fis G Galilei, Via Marzolo 8, I-36131 Padua, Italy.
[Scarlassara, F.; Montagnoli, G.] Univ Padua, INFN, Sezione Padova, I-36131 Padua, Italy.
[Fioretto, E.; Stefanini, A. M.; Corradi, L.] Univ Padua, INFN, Lab Nazl Legnaro, I-36131 Padua, Italy.
[Jiang, C. -L.; Back, B. B.; Patel, N.; Rehm, K. E.; Sewerinyak, D.; Tang, X. D.; Deibel, C. M.; Di Giovine, B.; Greene, J. P.; Henderson, H. D.; Marley, S. T.; Zhu, S.] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA.
[Notani, M.] Michigan State Univ, Joint Inst Nucl, Astrophys, E Lansing, MI 48824 USA.
[Deibel, C. M.] Univ Notre Dame, Notre Dame, IN 46556 USA.
[Marley, S. T.] Western Michigan Univ, Kalamazoo, MI 49008 USA.
[Patel, N.] Colorado Sch Mines, Dept Phys, Golden, CO 80401 USA.
RP Scarlassara, F (reprint author), Univ Padua, Dipartimento Fis G Galilei, Via Marzolo 8, I-36131 Padua, Italy.
OI Scarlassara, Fernando/0000-0002-4663-8216
NR 14
TC 15
Z9 15
U1 0
U2 0
PU E D P SCIENCES
PI CEDEX A
PA 17 AVE DU HOGGAR PARC D ACTIVITES COUTABOEUF BP 112, F-91944 CEDEX A,
FRANCE
SN 2100-014X
J9 EPJ WEB CONF
PY 2011
VL 17
AR 05002
DI 10.1051/epjconf/20111705002
PG 3
WC Physics, Nuclear
SC Physics
GA BAX19
UT WOS:000305937100020
ER
PT S
AU Tang, X
Fang, X
Bucher, B
Esbensen, H
Jiang, CL
Rehm, KE
Lin, CJ
AF Tang, X.
Fang, X.
Bucher, B.
Esbensen, H.
Jiang, C. L.
Rehm, K. E.
Lin, C. J.
BE Schmitt, CH
Navin, A
Rejmund, M
Lacroix, D
Goutte, H
TI Upper Limit on the molecular resonance strengths in the C-12+C-12 fusion
reaction
SO 5TH INTERNATIONAL CONFERENCE FUSION11
SE EPJ Web of Conferences
LA English
DT Proceedings Paper
CT 5th International Conference on FUSION11
CY MAY 02-06, 2011
CL St Malo, FRANCE
ID ENERGIES
AB Carbon burning is a crucial process for a number of important astrophysical scenarios. The lowest measured energy is around E-c.m.=2.1 MeV, only partially overlapping with the energy range of astrophysical interest. The currently adopted reaction rates are based on an extrapolation which is highly uncertain because of potential resonances existing in the unmeasured energy range and the complication of the effective nuclear potential. By comparing the cross sections of the three carbon isotope fusion reactions, C-12+C-12, C-12+C-13 and C-13+C-13, we have established an upper limit on the molecular resonance strengths in C-12+C-12 fusion reaction. The preliminary results are presented and the impact on nuclear astrophysics is discussed.
C1 [Tang, X.; Fang, X.; Bucher, B.] Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA.
[Esbensen, H.; Jiang, C. L.; Rehm, K. E.] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA.
[Lin, C. J.] China Inst Atom Energy, Beijing 102413, Peoples R China.
RP Tang, X (reprint author), Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA.
EM xtang1@nd.edu
RI Tang, Xiaodong /F-4891-2016
NR 22
TC 0
Z9 0
U1 0
U2 0
PU E D P SCIENCES
PI CEDEX A
PA 17 AVE DU HOGGAR PARC D ACTIVITES COUTABOEUF BP 112, F-91944 CEDEX A,
FRANCE
SN 2100-014X
J9 EPJ WEB CONF
PY 2011
VL 17
AR 16016
DI 10.1051/epjconf/20111716016
PG 4
WC Physics, Nuclear
SC Physics
GA BAX19
UT WOS:000305937100081
ER
PT S
AU Elam, JW
Libera, JA
Hryn, JN
AF Elam, J. W.
Libera, J. A.
Hryn, J. N.
BE Elam, JW
Londergan, A
VanDerStraten, O
Roozeboom, F
DeGendt, S
Bent, SF
Delabie, A
TI Indium Oxide ALD using Cyclopentadienyl Indium and Mixtures of H2O and
O-2
SO ATOMIC LAYER DEPOSITION APPLICATIONS 7
SE ECS Transactions
LA English
DT Proceedings Paper
CT 7th Symposium on Atomic Layer Deposition Applications/220th Meeting of
the Electrochemical-Society (ECS)
CY OCT 10-12, 2011
CL Boston, MA
SP Electrochem Soc (ECS), Air Liquide, Appl Mat, Cambridge NanoTech, Gelest, Tokyo Electron, Dielect Sci & Technol, Elect & Photon
ID ATOMIC LAYER DEPOSITION; TRANSPARENT CONDUCTING OXIDES;
SURFACE-CHEMISTRY; THIN-FILMS; GROWTH; TIN
AB This study describes how In2O3 films can be prepared by ALD using alternating exposures to cyclopentadienyl indium (InCp) and combinations of H2O and O-2, even though H2O and O-2 are ineffective when used individually. When H2O and O-2 are used together, either as a simultaneous exposure or in the sequence H2O-O-2 or O-2-H2O, very uniform, highly conducting In2O3 films are deposited at 1.0-1.6 angstrom/cycle over large areas (12"x18") at temperatures as low as 100 degrees C. In agreement with our published mechanism, in-situ Fourier transform infrared measurements revealed that the H2O and O-2 work synergistically to facilitate the In2O3 ALD. Ex-situ measurements on films prepared over the deposition temperature range 100-250 degrees C identified a remarkable correlation between the film structure and electrical properties around an amorphous-to-crystalline phase transition near 140 degrees C.
C1 [Elam, J. W.; Libera, J. A.; Hryn, J. N.] Argonne Natl Lab, Argonne, IL 60439 USA.
RP Elam, JW (reprint author), Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA.
NR 17
TC 6
Z9 6
U1 0
U2 9
PU ELECTROCHEMICAL SOC INC
PI PENNINGTON
PA 65 S MAIN ST, PENNINGTON, NJ 08534-2839 USA
SN 1938-5862
BN 978-1-60768-256-1
J9 ECS TRANSACTIONS
PY 2011
VL 41
IS 2
BP 147
EP 155
DI 10.1149/1.3633663
PG 9
WC Electrochemistry; Physics, Applied
SC Electrochemistry; Physics
GA BAX20
UT WOS:000305937200015
ER
PT S
AU Yanguas-Gil, A
Elam, JW
AF Yanguas-Gil, A.
Elam, J. W.
BE Elam, JW
Londergan, A
VanDerStraten, O
Roozeboom, F
DeGendt, S
Bent, SF
Delabie, A
TI Diffusion-Reaction Model of ALD in Nanostructured Substrates: Analytic
Approximations to Dose Times as a Function of the Surface Reaction
Probability
SO ATOMIC LAYER DEPOSITION APPLICATIONS 7
SE ECS Transactions
LA English
DT Proceedings Paper
CT 7th Symposium on Atomic Layer Deposition Applications/220th Meeting of
the Electrochemical-Society (ECS)
CY OCT 10-12, 2011
CL Boston, MA
SP Electrochem Soc (ECS), Air Liquide, Appl Mat, Cambridge NanoTech, Gelest, Tokyo Electron, Dielect Sci & Technol, Elect & Photon
ID ATOMIC LAYER DEPOSITION; CONFORMALITY
AB We have developed a transport model for Atomic Layer Deposition (ALD) in nanostructured substrates. The model comprises a non-linear advection-diffusion-reaction equation coupled to a surface kinetic equation that incorporates the self-limiting nature of ALD. In their nondimensional forms, these equations show that coverage dynamics in ALD depend only on two parameters: the Damkoeler number and the precursor excess number. These parameters depend on the surface chemistry and experimental conditions and can be readily calculated for a wide range of substrate geometries including trenches and vias, anodized alumina, and powders.
C1 [Yanguas-Gil, A.; Elam, J. W.] Argonne Natl Lab, Div Energy Syst, Argonne, IL 60439 USA.
RP Yanguas-Gil, A (reprint author), Argonne Natl Lab, Div Energy Syst, 9700 S Cass Ave, Argonne, IL 60439 USA.
RI Yanguas-Gil, Angel/G-9630-2011
OI Yanguas-Gil, Angel/0000-0001-8207-3825
NR 8
TC 3
Z9 3
U1 0
U2 13
PU ELECTROCHEMICAL SOC INC
PI PENNINGTON
PA 65 S MAIN ST, PENNINGTON, NJ 08534-2839 USA
SN 1938-5862
BN 978-1-60768-256-1
J9 ECS TRANSACTIONS
PY 2011
VL 41
IS 2
BP 169
EP 174
DI 10.1149/1.3633665
PG 6
WC Electrochemistry; Physics, Applied
SC Electrochemistry; Physics
GA BAX20
UT WOS:000305937200017
ER
PT S
AU Proslier, T
Klug, JA
Becker, NC
Elam, JW
Pellin, MJ
AF Proslier, Th.
Klug, J. A.
Becker, N. C.
Elam, J. W.
Pellin, M. J.
BE Elam, JW
Londergan, A
VanDerStraten, O
Roozeboom, F
DeGendt, S
Bent, SF
Delabie, A
TI Atomic Layer Deposition of Superconductors
SO ATOMIC LAYER DEPOSITION APPLICATIONS 7
SE ECS Transactions
LA English
DT Proceedings Paper
CT 7th Symposium on Atomic Layer Deposition Applications/220th Meeting of
the Electrochemical-Society (ECS)
CY OCT 10-12, 2011
CL Boston, MA
SP Electrochem Soc (ECS), Air Liquide, Appl Mat, Cambridge NanoTech, Gelest, Tokyo Electron, Dielect Sci & Technol, Elect & Photon
ID FILMS
AB We report the use of atomic layer deposition (ALD) to synthesize thin superconducting films and multilayer superconductor-insulator (S-I) hetero-structures. ALD applied to superconducting films opens the way for a variety of applications, including improving the performance and decreasing the cost of high energy particle accelerators, superconducting wires for energy storage, and bolometers for radiation detection. Furthermore, the atomic-scale thickness control afforded by ALD enables the study of superconductivity and associated phenomena in homogeneous layers in the ultra-thin film limit. Two-dimensional superconductivity in such films is of interest from a fundamental point of view, as a new effect has recently been discovered at ultra-low temperature in thin superconducting films made by ALD: the super-insulating transition. The discovery of a new state with apparently infinite resistivity in ultra-thin ALD films offers both a platform to explore new physics as well as the promise, on a longer term, of new opportunities for loss electronics and detectors.
C1 [Proslier, Th.; Klug, J. A.; Becker, N. C.; Pellin, M. J.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA.
RP Proslier, T (reprint author), Argonne Natl Lab, Div Mat Sci, 9700 S Cass Ave, Argonne, IL 60439 USA.
RI Pellin, Michael/B-5897-2008; Klug, Jeffrey/A-3653-2013
OI Pellin, Michael/0000-0002-8149-9768;
NR 8
TC 4
Z9 4
U1 0
U2 11
PU ELECTROCHEMICAL SOC INC
PI PENNINGTON
PA 65 S MAIN ST, PENNINGTON, NJ 08534-2839 USA
SN 1938-5862
BN 978-1-60768-256-1
J9 ECS TRANSACTIONS
PY 2011
VL 41
IS 2
BP 237
EP 245
DI 10.1149/1.3633673
PG 9
WC Electrochemistry; Physics, Applied
SC Electrochemistry; Physics
GA BAX20
UT WOS:000305937200025
ER
PT S
AU Rosenberg, RA
AF Rosenberg, Richard A.
BE Naaman, R
Beratan, DN
Waldeck, DH
TI Spin-Polarized Electron Induced Asymmetric Reactions in Chiral Molecules
SO ELECTRONIC AND MAGNETIC PROPERTIES OF CHIRAL MOLECULES AND
SUPRAMOLECULAR ARCHITECTURES
SE Topics in Current Chemistry
LA English
DT Review; Book Chapter
DE Asymmetry; Chemistry; Chirality; Enatiomeric excess; Spin-polarized
electrons
ID OPTICALLY-ACTIVE MOLECULES; MAGNETIC CIRCULAR-DICHROISM; EXCITED
SECONDARY ELECTRONS; SCATTERING CROSS-SECTION; INTERSTELLAR ICE ANALOGS;
DL-LEUCINE; AMINO-ACIDS; BETA-DECAY; CORE-LEVEL; BIOMOLECULAR
HOMOCHIRALITY
AB Understanding the origin of chirality in nature has been an active area of research since the time of Pasteur. In this chapter we examine one possible route by which this asymmetry could have arisen, namely chiral-specific chemistry induced by spin-polarized electrons. The various sources of spin-polarized electrons (parity violation, photoemission, and secondary processes) are discussed. Experiments aimed at exploring these interactions are reviewed starting with those based on the Vester-Ulbricht hypothesis through recent studies of spin polarized secondary electrons from a magnetic substrate. We will conclude with a discussion of possible new avenues of research that could impact this area.
C1 Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA.
RP Rosenberg, RA (reprint author), Argonne Natl Lab, Adv Photon Source, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM rar@aps.anl.gov
NR 132
TC 9
Z9 9
U1 0
U2 10
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
SN 0340-1022
BN 978-3-642-18104-7
J9 TOP CURR CHEM
JI Top. Curr. Chem.
PY 2011
VL 298
BP 279
EP 306
DI 10.1007/128_2010_81
D2 10.1007/978-3-642-18104-7
PG 28
WC Chemistry, Multidisciplinary; Chemistry, Organic; Chemistry, Physical
SC Chemistry
GA BAY93
UT WOS:000306129900009
PM 21321806
ER
PT S
AU Wang, GT
Li, QM
Huang, JY
Wierer, J
Armstrong, A
Lin, Y
Upadhya, P
Prasankumar, R
AF Wang, George T.
Li, Qiming
Huang, Jianyu
Wierer, Jonathan
Armstrong, Andrew
Lin, Yong
Upadhya, Prashanth
Prasankumar, Rohit
BE Bardwell, JA
Hunter, GW
Stokes, EB
Caldwell, JD
Mi, Z
Wetzel, C
TI III-Nitride Nanowires: Emerging Materials for Lighting and Energy
Applications
SO WIDE BANDGAP SEMICONDUCTOR MATERIALS AND DEVICES 12
SE ECS Transactions
LA English
DT Proceedings Paper
CT 219th Meeting of the Electrochemical-Society (ECS)/Symposium on Wide
Bandgap Semiconductor Materials and Devices 12
CY MAY 01-06, 2011
CL Montreal, CANADA
SP Electrochem Soc (ECS), Elect & Photon, Sensor
ID GAN-NANOWIRES; HETEROSTRUCTURES; WAVELENGTH; SAPPHIRE; GROWTH
AB The aligned growth of III-nitride nanowires, along with results providing insights into the nanowire properties obtained using electrical, optical and structural characterization techniques, are discussed. A new "top-down" approach for fabricating ordered arrays of high quality GaN-based nanorods with controllable height, pitch and diameter is also presented, along with results from preliminary LEDs grown on these nanorod arrays. Additionally, a novel application of aligned nanowire arrays as strain-relief templates for the growth of high quality GaN is demonstrated.
C1 [Wang, George T.; Li, Qiming; Huang, Jianyu; Wierer, Jonathan; Armstrong, Andrew; Lin, Yong] Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Wang, GT (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
EM gtwang@sandia.gov
RI Wierer, Jonathan/G-1594-2013
OI Wierer, Jonathan/0000-0001-6971-4835
NR 22
TC 1
Z9 1
U1 0
U2 4
PU ELECTROCHEMICAL SOC INC
PI PENNINGTON
PA 65 S MAIN ST, PENNINGTON, NJ 08534-2839 USA
SN 1938-5862
BN 978-1-60768-217-2
J9 ECS TRANSACTIONS
PY 2011
VL 35
IS 6
BP 3
EP 11
DI 10.1149/1.3570840
PG 9
WC Electrochemistry; Engineering, Electrical & Electronic; Materials
Science, Multidisciplinary; Physics, Applied
SC Electrochemistry; Engineering; Materials Science; Physics
GA BAX18
UT WOS:000305936300001
ER
PT J
AU Bush, M
Lyumkis, D
Tsutakawa, S
Tainer, JA
Potter, CS
Putnam, CD
Shiau, AK
Carragher, B
Desai, A
Oegema, K
AF Bush, M.
Lyumkis, D.
Tsutakawa, S.
Tainer, J. A.
Potter, C. S.
Putnam, C. D.
Shiau, A. K.
Carragher, B.
Desai, A.
Oegema, K.
TI SAS-6 dimers adopt a folded conformation required for centriole
assembly.
SO MOLECULAR BIOLOGY OF THE CELL
LA English
DT Meeting Abstract
CT Annual Meeting of the American-Society-for-Cell-Biology (ASCB)
CY DEC 03-07, 2011
CL Denver, CO
SP Amer Soc Cell Biol (ASCB)
C1 [Bush, M.; Putnam, C. D.; Shiau, A. K.; Desai, A.; Oegema, K.] Univ Calif San Diego, LICR, La Jolla, CA 92093 USA.
[Lyumkis, D.; Potter, C. S.; Carragher, B.] Scripps Res Inst, Natl Resource Automated Mol Microscopy, La Jolla, CA USA.
[Lyumkis, D.; Potter, C. S.; Carragher, B.] Scripps Res Inst, Dept Cell Biol, La Jolla, CA USA.
[Tsutakawa, S.; Tainer, J. A.] Lawrence Berkeley Natl Lab, Div Life Sci, Berkeley, CA USA.
NR 0
TC 0
Z9 0
U1 0
U2 3
PU AMER SOC CELL BIOLOGY
PI BETHESDA
PA 8120 WOODMONT AVE, STE 750, BETHESDA, MD 20814-2755 USA
SN 1059-1524
J9 MOL BIOL CELL
JI Mol. Biol. Cell
PY 2011
VL 22
MA 884
PG 1
WC Cell Biology
SC Cell Biology
GA 961YM
UT WOS:000305505502002
ER
PT J
AU Cakmak, G
Miller, LM
Severcan, M
Zorlu, F
Severcan, F
AF Cakmak, G.
Miller, L. M.
Severcan, M.
Zorlu, F.
Severcan, F.
TI Monitoring of Radioprotective Effects of Amifostine on Rat Liver
Microsomal Membrane and Brain Tissue Lipids by FTIR Spectroscopy and
Microspectroscopy.
SO MOLECULAR BIOLOGY OF THE CELL
LA English
DT Meeting Abstract
CT Annual Meeting of the American-Society-for-Cell-Biology (ASCB)
CY DEC 03-07, 2011
CL Denver, CO
SP Amer Soc Cell Biol (ASCB)
C1 [Cakmak, G.; Severcan, F.] Middle E Tech Univ, Dept Biol Sci, TR-06531 Ankara, Turkey.
[Miller, L. M.] Brookhaven Natl Lab, Natl Synchrotron Light Source, Upton, NY 11973 USA.
[Severcan, M.] Middle E Tech Univ, Dept Elect & Elect Engn, TR-06531 Ankara, Turkey.
[Zorlu, F.] Hacettepe Univ, Dept Radiat Oncol, Ankara, Turkey.
NR 1
TC 0
Z9 0
U1 0
U2 3
PU AMER SOC CELL BIOLOGY
PI BETHESDA
PA 8120 WOODMONT AVE, STE 750, BETHESDA, MD 20814-2755 USA
SN 1059-1524
J9 MOL BIOL CELL
JI Mol. Biol. Cell
PY 2011
VL 22
MA 467
PG 1
WC Cell Biology
SC Cell Biology
GA 961YM
UT WOS:000305505501020
ER
PT J
AU Elgin, SC
Riddle, NC
Gu, T
Jung, YL
AF Elgin, S. C.
Riddle, N. C.
Gu, T.
Jung, Y. L.
CA modENCODE Drosophila Chromatin
TI The Unusual Features of Active Genes on Drosophila melanogaster
Chromosome Four: Reinterpreting the Roles of Chromatin Modifications
SO MOLECULAR BIOLOGY OF THE CELL
LA English
DT Meeting Abstract
CT Annual Meeting of the American-Society-for-Cell-Biology (ASCB)
CY DEC 03-07, 2011
CL Denver, CO
SP Amer Soc Cell Biol (ASCB)
C1 [Elgin, S. C.; Riddle, N. C.; Gu, T.] Harvard Univ, Sch Med, Cambridge, MA 02138 USA.
[Jung, Y. L.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
NR 0
TC 0
Z9 0
U1 1
U2 2
PU AMER SOC CELL BIOLOGY
PI BETHESDA
PA 8120 WOODMONT AVE, STE 750, BETHESDA, MD 20814-2755 USA
SN 1059-1524
J9 MOL BIOL CELL
JI Mol. Biol. Cell
PY 2011
VL 22
MA 1107
PG 2
WC Cell Biology
SC Cell Biology
GA 961YM
UT WOS:000305505502222
ER
PT J
AU Gabanyi, M
Westbrook, J
Micallef, D
Tao, YP
Shah, R
McLaughlin, W
Schwede, T
Adams, P
Minor, W
Berman, H
AF Gabanyi, M.
Westbrook, J.
Micallef, D.
Tao, Y-P.
Shah, R.
McLaughlin, W.
Schwede, T.
Adams, P.
Minor, W.
Berman, H.
TI Enabling Biology with the Structural Biology Knowledgebase.
SO MOLECULAR BIOLOGY OF THE CELL
LA English
DT Meeting Abstract
CT Annual Meeting of the American-Society-for-Cell-Biology (ASCB)
CY DEC 03-07, 2011
CL Denver, CO
SP Amer Soc Cell Biol (ASCB)
C1 [Gabanyi, M.; Westbrook, J.; Micallef, D.; Tao, Y-P.; Shah, R.; Berman, H.] Rutgers State Univ, Piscataway, NJ USA.
[McLaughlin, W.] Commonwealth Med Coll, Scranton, PA USA.
[Schwede, T.] Univ Basel, Swiss Inst Bioinformat, CH-4003 Basel, Switzerland.
[Adams, P.] Lawrence Berkeley Natl Labs, Charlottesville, VA USA.
[Minor, W.] Univ Virginia, Sch Med, Charlottesville, VA 22908 USA.
RI Schwede, Torsten/A-4650-2008; Minor, Wladek/F-3096-2014
OI Schwede, Torsten/0000-0003-2715-335X;
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER SOC CELL BIOLOGY
PI BETHESDA
PA 8120 WOODMONT AVE, STE 750, BETHESDA, MD 20814-2755 USA
SN 1059-1524
J9 MOL BIOL CELL
JI Mol. Biol. Cell
PY 2011
VL 22
MA 2215/L124
PG 1
WC Cell Biology
SC Cell Biology
GA 961YM
UT WOS:000305505504247
ER
PT J
AU Greene, AC
Lord, SJ
Lee, IJ
Groves, JT
AF Greene, A. C.
Lord, S. J.
Lee, I. J.
Groves, J. T.
TI Determining if spatio-mechanosensitivity of EphA2 signaling stems from
physical impedance of endocytosis.
SO MOLECULAR BIOLOGY OF THE CELL
LA English
DT Meeting Abstract
CT Annual Meeting of the American-Society-for-Cell-Biology (ASCB)
CY DEC 03-07, 2011
CL Denver, CO
SP Amer Soc Cell Biol (ASCB)
C1 [Greene, A. C.; Lee, I. J.] Univ Calif Berkeley, Dept Mol & Cell Biol, Berkeley, CA 94720 USA.
[Greene, A. C.; Lord, S. J.; Lee, I. J.; Groves, J. T.] Univ Calif Berkeley, Howard Hughes Med Inst, Dept Chem, Berkeley, CA USA.
[Groves, J. T.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Phys Biosci Div, Berkeley, CA 94720 USA.
[Groves, J. T.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER SOC CELL BIOLOGY
PI BETHESDA
PA 8120 WOODMONT AVE, STE 750, BETHESDA, MD 20814-2755 USA
SN 1059-1524
J9 MOL BIOL CELL
JI Mol. Biol. Cell
PY 2011
VL 22
MA 1804
PG 2
WC Cell Biology
SC Cell Biology
GA 961YM
UT WOS:000305505503385
ER
PT J
AU Lander, GC
Wiedenheft, B
Zhou, K
Jore, MM
Brouns, SJ
van der Oost, J
Doudna, JA
Nogales, E
AF Lander, G. C.
Wiedenheft, B.
Zhou, K.
Jore, M. M.
Brouns, S. J.
van der Oost, J.
Doudna, J. A.
Nogales, E.
TI Structures of the RNA-guided surveillance complex from a bacterial
immune system.
SO MOLECULAR BIOLOGY OF THE CELL
LA English
DT Meeting Abstract
CT Annual Meeting of the American-Society-for-Cell-Biology (ASCB)
CY DEC 03-07, 2011
CL Denver, CO
SP Amer Soc Cell Biol (ASCB)
C1 [Lander, G. C.; Nogales, E.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Jore, M. M.; Brouns, S. J.; van der Oost, J.] Wageningen Univ, Wageningen, Netherlands.
NR 0
TC 0
Z9 0
U1 1
U2 1
PU AMER SOC CELL BIOLOGY
PI BETHESDA
PA 8120 WOODMONT AVE, STE 750, BETHESDA, MD 20814-2755 USA
SN 1059-1524
J9 MOL BIOL CELL
JI Mol. Biol. Cell
PY 2011
VL 22
MA 1965
PG 1
WC Cell Biology
SC Cell Biology
GA 961YM
UT WOS:000305505503544
ER
PT J
AU Liu, Y
Wilson, B
Oliver, J
Singh, A
AF Liu, Y.
Wilson, B.
Oliver, J.
Singh, A.
TI Spatio-temporal profiling of IgE receptor-mediated pathway using an
integrated microfluidic platform
SO MOLECULAR BIOLOGY OF THE CELL
LA English
DT Meeting Abstract
CT Annual Meeting of the American-Society-for-Cell-Biology (ASCB)
CY DEC 03-07, 2011
CL Denver, CO
SP Amer Soc Cell Biol (ASCB)
C1 [Liu, Y.; Singh, A.] Sandia Natl Labs, Livermore, CA USA.
[Wilson, B.; Oliver, J.] Univ New Mexico, Dept Pathol, Albuquerque, NM 87131 USA.
NR 0
TC 0
Z9 0
U1 0
U2 3
PU AMER SOC CELL BIOLOGY
PI BETHESDA
PA 8120 WOODMONT AVE, STE 750, BETHESDA, MD 20814-2755 USA
SN 1059-1524
J9 MOL BIOL CELL
JI Mol. Biol. Cell
PY 2011
VL 22
MA 1936
PG 1
WC Cell Biology
SC Cell Biology
GA 961YM
UT WOS:000305505503516
ER
PT J
AU Mroue, R
Bissell, M
AF Mroue, R.
Bissell, M.
TI Asymmetric Expression/Distribution of Connexins is Essential for
Contractile Function in the Mammary Gland
SO MOLECULAR BIOLOGY OF THE CELL
LA English
DT Meeting Abstract
CT Annual Meeting of the American-Society-for-Cell-Biology (ASCB)
CY DEC 03-07, 2011
CL Denver, CO
SP Amer Soc Cell Biol (ASCB)
C1 [Mroue, R.; Bissell, M.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Mroue, R.] Univ Calif Berkeley, Berkeley, CA USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER SOC CELL BIOLOGY
PI BETHESDA
PA 8120 WOODMONT AVE, STE 750, BETHESDA, MD 20814-2755 USA
SN 1059-1524
J9 MOL BIOL CELL
JI Mol. Biol. Cell
PY 2011
VL 22
MA 373
PG 1
WC Cell Biology
SC Cell Biology
GA 961YM
UT WOS:000305505500372
ER
PT J
AU Stone, EM
Nunes, NL
Brady, SA
Morgado, S
AF Stone, E. M.
Nunes, N. L.
Brady, S. A.
Morgado, S.
TI Measuring Outcomes of Summer Research Experiences for Future Science &
Math Teachers
SO MOLECULAR BIOLOGY OF THE CELL
LA English
DT Meeting Abstract
CT Annual Meeting of the American-Society-for-Cell-Biology (ASCB)
CY DEC 03-07, 2011
CL Denver, CO
SP Amer Soc Cell Biol (ASCB)
C1 [Brady, S. A.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Ctr Sci & Engn Educ, Berkeley, CA 94720 USA.
[Morgado, S.] Mare Isl Technol Acad, Vallejo, CA USA.
[Stone, E. M.; Nunes, N. L.] Univ Calif Berkeley, Cal Teach, Berkeley, CA 94720 USA.
NR 0
TC 0
Z9 0
U1 0
U2 3
PU AMER SOC CELL BIOLOGY
PI BETHESDA
PA 8120 WOODMONT AVE, STE 750, BETHESDA, MD 20814-2755 USA
SN 1059-1524
J9 MOL BIOL CELL
JI Mol. Biol. Cell
PY 2011
VL 22
MA 1007
PG 2
WC Cell Biology
SC Cell Biology
GA 961YM
UT WOS:000305505502124
ER
PT J
AU Tanner, K
Bissell, M
AF Tanner, K.
Bissell, M.
TI Angular morphomechanics in the establishment of multicellular
architecture
SO MOLECULAR BIOLOGY OF THE CELL
LA English
DT Meeting Abstract
CT Annual Meeting of the American-Society-for-Cell-Biology (ASCB)
CY DEC 03-07, 2011
CL Denver, CO
SP Amer Soc Cell Biol (ASCB)
C1 [Tanner, K.; Bissell, M.] LBNL, Berkeley, CA USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER SOC CELL BIOLOGY
PI BETHESDA
PA 8120 WOODMONT AVE, STE 750, BETHESDA, MD 20814-2755 USA
SN 1059-1524
J9 MOL BIOL CELL
JI Mol. Biol. Cell
PY 2011
VL 22
MA 183
PG 2
WC Cell Biology
SC Cell Biology
GA 961YM
UT WOS:000305505500183
ER
PT J
AU Vahey, MD
Good, MC
Skandarajah, A
Stachowiak, JC
Heald, R
Fletcher, DA
AF Vahey, M. D.
Good, M. C.
Skandarajah, A.
Stachowiak, J. C.
Heald, R.
Fletcher, D. A.
TI Encapsulation of functional cytoplasmic extract within giant unilamellar
vesicles
SO MOLECULAR BIOLOGY OF THE CELL
LA English
DT Meeting Abstract
CT Annual Meeting of the American-Society-for-Cell-Biology (ASCB)
CY DEC 03-07, 2011
CL Denver, CO
SP Amer Soc Cell Biol (ASCB)
C1 [Vahey, M. D.; Good, M. C.; Skandarajah, A.; Heald, R.; Fletcher, D. A.] Univ Calif Berkeley, Berkeley, CA 94720 USA.
[Stachowiak, J. C.] Sandia Natl Labs, Livermore, CA 94550 USA.
NR 0
TC 0
Z9 0
U1 1
U2 1
PU AMER SOC CELL BIOLOGY
PI BETHESDA
PA 8120 WOODMONT AVE, STE 750, BETHESDA, MD 20814-2755 USA
SN 1059-1524
J9 MOL BIOL CELL
JI Mol. Biol. Cell
PY 2011
VL 22
MA 1921
PG 1
WC Cell Biology
SC Cell Biology
GA 961YM
UT WOS:000305505503501
ER
PT S
AU Georgievskii, Y
Klippenstein, SJ
AF Georgievskii, Yuri
Klippenstein, Stephen J.
BE Cernicharo, J
Bachiller, R
TI Long-Range Interaction Potential of Open Shell Atoms with Neutral
Molecules : Application to the Calculation of the Rate Constant for the
C2H((2)Sigma(+))+O(P-3) Reaction
SO MOLECULAR UNIVERSE
SE IAU Symposium Proceedings Series
LA English
DT Proceedings Paper
CT 280th Symposium of the International Astronomical Union
CY MAY 30-JUN 03, 2011
CL Toledo, SPAIN
SP Int Astronom Union, Minist Ciencia & Technologia, Consejo Superior Investigac Cientificas, Inst Nacl Tecnica Aeoroespacial, Inst Geograf Nacl, Univ Castilla Mancha
ID TRANSITION-STATE THEORY
AB An accurate knowledge of the long-range interaction potential for the ground and first few excited electronic states is needed for quantitative prediction of the rate coefficients for astrochemical reactions at low temperatures. Some reactions important for astrochemical modeling include an open-shell atom as one of the fragments. Due to the interplay between the spin-orbit and quadrupole interactions such reactions require a special treatment. In this paper we derive the general expressions for the energy levels for such systems, apply them to the C2H((2)Sigma(+)) + O(P-3) reaction, and compare the results with ab initio calculations.
C1 [Georgievskii, Yuri; Klippenstein, Stephen J.] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA.
RP Georgievskii, Y (reprint author), Argonne Natl Lab, Chem Sci & Engn Div, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM sjk@anl.gov
NR 12
TC 0
Z9 0
U1 1
U2 4
PU CAMBRIDGE UNIV PRESS
PI CAMBRIDGE
PA THE PITT BUILDING, TRUMPINGTON ST, CAMBRIDGE CB2 1RP, CAMBS, ENGLAND
SN 1743-9213
BN 978-1-107-01980-5
J9 IAU SYMP P SERIES
JI IAU Symposium Proc. Series
PY 2011
IS 280
BP 372
EP 382
DI 10.1017/S1743921311025129
PG 11
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA BAT30
UT WOS:000305449300032
ER
PT S
AU Abercrombie, RK
Udoeyop, AW
AF Abercrombie, Robert K.
Udoeyop, Akaninyene W.
BE Noyons, E
Ngulube, P
Leta, J
TI A Study of Scientometric Methods to Identify Emerging Technologies
SO PROCEEDINGS OF ISSI 2011: THE 13TH CONFERENCE OF THE INTERNATIONAL
SOCIETY FOR SCIENTOMETRICS AND INFORMETRICS, VOLS 1 AND 2
SE Proceedings of the International Conference on Scientometrics and
Informetrics
LA English
DT Proceedings Paper
CT 13th Conference of the
International-Society-for-Scientometrics-and-Informetrics (ISSI)
CY JUL 04-07, 2011
CL Durban, SOUTH AFRICA
SP Int Soc Scientometr & Informetr (ISSI)
AB This work examines a scientometric model that tracks the emergence of an identified technology from initial discovery (via original scientific and conference literature), through critical discoveries (via original scientific, conference literature and patents), transitioning through Technology Readiness Levels (TRLs) and ultimately on to commercial application. During the period of innovation and technology transfer, the impact of scholarly works, patents and on-line web news sources are identified. As trends develop, currency of citations, collaboration indicators, and on-line news patterns are identified. The combinations of four distinct and separate searchable on-line networked sources (i.e., scholarly publications and citation, worldwide patents, news archives, and on-line mapping networks) are assembled to become one collective network (a dataset for analysis of relations). This established network becomes the basis from which to quickly analyze the temporal flow of activity (searchable events) for the example subject domain we investigated.
C1 [Abercrombie, Robert K.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
EM abercrombier@ornl.gov; audoeyup@cisco.com
NR 37
TC 1
Z9 1
U1 0
U2 9
PU INT SOC SCIENTOMETRICS & INFORMETRICS-ISSI
PI LEUVEN
PA KATHOLIEKE UNIV LEUVEN, FACULTEIT E T E W, DEKENSTRAAT 2, LEUVEN,
B-3000, BELGIUM
SN 2175-1935
BN 978-90-817527-0-1
J9 PRO INT CONF SCI INF
PY 2011
BP 2
EP 12
PG 11
WC Computer Science, Information Systems; Computer Science,
Interdisciplinary Applications; Information Science & Library Science
SC Computer Science; Information Science & Library Science
GA BAR88
UT WOS:000305337100001
ER
PT S
AU Frank, M
Gard, EE
Tobias, HJ
Adams, KL
Bogan, MJ
Coffee, KR
Farquar, GR
Fergenson, DP
Martin, SI
Pitesky, M
Riot, VJ
Srivastava, A
Steele, PT
Williams, AM
AF Frank, Matthias
Gard, Eric E.
Tobias, Herbert J.
Adams, Kristl L.
Bogan, Michael J.
Coffee, Keith R.
Farquar, George R.
Fergenson, David P.
Martin, Sue I.
Pitesky, Maurice
Riot, Vincent J.
Srivastava, Abneesh
Steele, Paul T.
Williams, Audrey M.
BE Fenselau, C
Demirev, P
TI Single-Particle Aerosol Mass Spectrometry (SPAMS) for High-Throughput
and Rapid Analysis of Biological Aerosols and Single Cells
SO RAPID CHARACTERIZATION OF MICROORGANISMS BY MASS SPECTROMETRY
SE ACS Symposium Series
LA English
DT Proceedings Paper
CT 238th National Meeting of the American-Chemical-Society
(ACS)/American-Chemical-Society (ACS) Symposium on Emerging
Contaminants, Pharmaceuticals and Personal Care Products (PPCPs), and
Organohalogens in Wastewater and Municipal Biosolids
CY AUG 16-20, 2009
CL Washington, DC
SP Amer Chem Soc, Div Chem Toxicol, Amer Chem Soc, Env Chem Inc
ID ASSISTED-LASER-DESORPTION/IONIZATION; BACILLUS-ATROPHAEUS SPORES;
REAL-TIME MEASUREMENT; REAGENTLESS DETECTION; BIOAEROSOL PARTICLES;
SPECTRAL SIGNATURES; TUBERCULOSIS H37RA; IONIZATION; MALDI;
IDENTIFICATION
AB At Lawrence Livermore National Laboratory, we have developed a single-particle aerosol mass spectrometry (SPAMS) system that can rapidly analyze individual micrometer-sized biological aerosol particles or cells that are sampled directly from air or a lab-generated aerosol into a mass spectrometer. As particles enter the SPAMS system, their aerodynamic size and fluorescence properties are measured before mass spectra from both positive and negative ions created by matrix-free laser desorption and ionization are recorded. All the correlated data obtained from a particle can be analyzed and classified in real-time. The SPAMS system is capable of discriminating, particle by particle, between bacterial spores, vegetative cells and other biological and non-biological background materials using the mass fingerprints obtained from those particles. In addition, selected species of bacteria can be discriminated from each other with this method. Here we describe the overall architecture of the SPAMS system and the related algorithms. We present selected results from applying the SPAMS technique to the analysis of biological agent simulants and single cells. We also describe results from first proof-of-concept experiments using SPAMS for the rapid screening of human effluents for tuberculosis. Lastly, we present results from a field study in a large airport using SPAMS to assess biological content in ambient aerosol.
C1 [Frank, Matthias; Gard, Eric E.; Tobias, Herbert J.; Adams, Kristl L.; Bogan, Michael J.; Coffee, Keith R.; Farquar, George R.; Fergenson, David P.; Martin, Sue I.; Pitesky, Maurice; Riot, Vincent J.; Srivastava, Abneesh; Steele, Paul T.; Williams, Audrey M.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
RP Frank, M (reprint author), Lawrence Livermore Natl Lab, 7000 East Ave,L-211, Livermore, CA 94551 USA.
EM frank1@llnl.gov
RI Adams, Kristl/A-5748-2009; Bogan, Mike/I-6962-2012; Frank,
Matthias/O-9055-2014
OI Bogan, Mike/0000-0001-9318-3333;
NR 57
TC 2
Z9 2
U1 1
U2 21
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 SIXTEENTH ST NW, WASHINGTON, DC 20036 USA
SN 0097-6156
BN 978-0-8412-2612-8
J9 ACS SYM SER
JI ACS Symp. Ser.
PY 2011
VL 1065
BP 161
EP 196
PG 36
WC Chemistry, Analytical; Microbiology
SC Chemistry; Microbiology
GA BAS36
UT WOS:000305357700010
ER
PT J
AU Pullum, LL
Symons, CT
AF Pullum, Laura L.
Symons, Christopher T.
GP IEEE
TI Failure Analysis of a Complex Learning Framework Incorporating
Multi-Modal and Semi-Supervised Learning
SO 2011 IEEE 17TH PACIFIC RIM INTERNATIONAL SYMPOSIUM ON DEPENDABLE
COMPUTING (PRDC)
LA English
DT Proceedings Paper
CT 17th IEEE Pacific Rim International Symposium on Dependable Computing
(PRDC)
CY DEC 12-14, 2011
CL Pasadena, CA
SP IEEE, IEEE Comp Soc, IFIP, Jet Prop Lab (JPL)
DE machine learning; failure modes; failure analysis; dependability
AB Machine learning is used in many applications, from machine vision to speech recognition to decision support systems, and it is used to test applications. However, though much has been done to evaluate the performance of machine learning algorithms, little has been done to verify the algorithms or examine their failure modes. Moreover, complex learning frameworks often require stepping beyond black box evaluation to distinguish between errors based on natural limits on learning and errors that arise from mistakes in implementation. We present a conceptual architecture, failure model and taxonomy, and failure modes and effects analysis (FMEA) of a semi-supervised, multi-modal learning system, and provide specific examples from its use in a radiological analysis assistant system. The goal of the research described in this paper is to provide a foundation from which dependability analysis of systems using semi-supervised, multi-modal learning can be conducted. The methods presented provide a first step towards that overall goal.
C1 [Pullum, Laura L.; Symons, Christopher T.] Oak Ridge Natl Lab, Computat Sci & Engn Div, Oak Ridge, TN USA.
RP Pullum, LL (reprint author), Oak Ridge Natl Lab, Computat Sci & Engn Div, Oak Ridge, TN USA.
EM PullumLL@ornl.gov; SymonsCT@ornl.gov
NR 10
TC 0
Z9 0
U1 1
U2 4
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-0-7695-4590-5
PY 2011
BP 308
EP 313
DI 10.1109/PRDC.2011.52
PG 6
WC Computer Science, Hardware & Architecture; Engineering, Electrical &
Electronic
SC Computer Science; Engineering
GA BAP65
UT WOS:000305062200044
ER
PT S
AU Colgate, SA
Li, H
Kronberg, PP
AF Colgate, Stirling A.
Li, Hui
Kronberg, Philipp P.
BE Bonanno, A
DalPino, ED
Kosovichev, AG
TI The magnetized universe: its origin and dissipation through acceleration
and leakage to the voids
SO ADVANCES IN PLASMA ASTROPHYSICS
SE IAU Symposium Proceedings Series
LA English
DT Proceedings Paper
CT 274th Symposium of the International-Astronomical-Union on Advances in
Plasma Astrophysics
CY SEP 06-10, 2010
CL Giardini Naxos, ITALY
SP Int Astron Union, Ist Nazl Astrofis, Univ Studi Catania, Dipartimento Fis & Astron, Ist Nazl Fis Nucl Sezione Catania, Lab Nazl Sud Sezione Catania, European Phys Soc, European Sci Fdn
DE Magnetic fields; MHD; galaxies: jets; acceleration of particles
ID X-RAY; RADIO-SOURCES; GALAXIES; ENERGY; FIELD; VLA
AB The consistency is awesome between over a dozen observations and the paradigm of radio lobes being immense sources of magnetic energy, flux, and relativistic electrons, - a magnetized universe.
The greater the total energy of an astrophysical phenomenon, the more restricted are the possible explanations. Magnetic energy is the most challenging because its origin is still considered problematic. We suggest that it is evident that the universe is magnetized because of radio lobes, ultra relativistic electrons, Faraday rotation measures, the polarized emission of extra galactic radio structures, the x-rays from relativistic electrons Comptonized on the CMB, and possibly extra galactic cosmic rays. The implied energies are so large that only the formation of supermassive black hole, (SMBH) at the center of every galaxy is remotely energetic enough to supply this immense energy, similar to(1/10)10(8)M(circle dot)c(2) per galaxy. Only a galaxy cluster of 1000 galaxies has comparable energy, but it is inversely, (to the number of galaxies), rare per galaxy. Yet this energy appears to be shared between magnetic fields and accelerated relativistic particles, both electrons and ions. Only a large-scale coherent dynamo generating poloidal flux within the accretion disk forming the massive black hole makes a reasonable starting point. The subsequent winding of this dynamo-derived magnetic flux by conducting, angular momentum-dominated accreting matter, (similar to 10(11) turns near the event horizon in 10(8) years) produces the immense, coherent magnetic jets or total flux of radio lobes and similarly in star formation. By extending this same physics to supernova-neutron star formation, we predict that similar differential winding of the flux that couples explosion ejecta and a newly formed, rapidly rotating neutron star will produce similar phenomena of a magnetic jet and lobes in the forming supernova nebula. In all cases the conversion of force-free magnetic energy into accelerated ions and electrons is a major challenge.
C1 [Colgate, Stirling A.; Li, Hui; Kronberg, Philipp P.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Colgate, SA (reprint author), Los Alamos Natl Lab, MS B227, Los Alamos, NM 87545 USA.
EM colgate@lanl.gov; hli@lanl.gov; kronberg@lanl.gov
NR 21
TC 1
Z9 1
U1 0
U2 1
PU CAMBRIDGE UNIV PRESS
PI CAMBRIDGE
PA THE PITT BUILDING, TRUMPINGTON ST, CAMBRIDGE CB2 1RP, CAMBS, ENGLAND
SN 1743-9213
BN 978-0-52119-741-0
J9 IAU SYMP P SERIES
JI IAU Symposium Proc. Series
PY 2011
IS 274
BP 2
EP 9
DI 10.1017/S1743921311006491
PG 8
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA BAQ17
UT WOS:000305161800001
ER
PT S
AU Yamada, M
Ji, HT
AF Yamada, Masaaki
Ji, Hantao
BE Bonanno, A
DalPino, ED
Kosovichev, AG
TI Study of magnetic reconnection in collisional and collionless plasmas in
Magnetic Reconnection Experiment (MRX)
SO ADVANCES IN PLASMA ASTROPHYSICS
SE IAU Symposium Proceedings Series
LA English
DT Proceedings Paper
CT 274th Symposium of the International-Astronomical-Union on Advances in
Plasma Astrophysics
CY SEP 06-10, 2010
CL Giardini Naxos, ITALY
SP Int Astron Union, Ist Nazl Astrofis, Univ Studi Catania, Dipartimento Fis & Astron, Ist Nazl Fis Nucl Sezione Catania, Lab Nazl Sud Sezione Catania, European Phys Soc, European Sci Fdn
ID LABORATORY PLASMA
C1 [Yamada, Masaaki; Ji, Hantao] Princeton Univ, Princeton Plasma Phys Lab, Princeton, NJ 08543 USA.
RP Yamada, M (reprint author), Princeton Univ, Princeton Plasma Phys Lab, POB 451, Princeton, NJ 08543 USA.
EM myamada@pppl.gov
RI Yamada, Masaaki/D-7824-2015
OI Yamada, Masaaki/0000-0003-4996-1649
NR 23
TC 0
Z9 0
U1 0
U2 3
PU CAMBRIDGE UNIV PRESS
PI CAMBRIDGE
PA THE PITT BUILDING, TRUMPINGTON ST, CAMBRIDGE CB2 1RP, CAMBS, ENGLAND
SN 1743-9213
BN 978-0-52119-741-0
J9 IAU SYMP P SERIES
JI IAU Symposium Proc. Series
PY 2011
IS 274
BP 10
EP 17
DI 10.1017/S1743921311006508
PG 8
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA BAQ17
UT WOS:000305161800002
ER
PT S
AU Ji, HT
AF Ji, Hantao
BE Bonanno, A
DalPino, ED
Kosovichev, AG
TI Current status and future prospects for laboratory study of angular
momentum transport relevant to astrophysical disks
SO ADVANCES IN PLASMA ASTROPHYSICS
SE IAU Symposium Proceedings Series
LA English
DT Proceedings Paper
CT 274th Symposium of the International-Astronomical-Union on Advances in
Plasma Astrophysics
CY SEP 06-10, 2010
CL Giardini Naxos, ITALY
SP Int Astron Union, Ist Nazl Astrofis, Univ Studi Catania, Dipartimento Fis & Astron, Ist Nazl Fis Nucl Sezione Catania, Lab Nazl Sud Sezione Catania, European Phys Soc, European Sci Fdn
DE accretion disks; hydrodynamics; magnetohydrodynamics (MHD);
instabilities; plasmas; turbulence; methods: laboratory
ID DISSIPATIVE COUETTE-FLOW; MAGNETOROTATIONAL INSTABILITY; ROTATING
CYLINDERS; HYDRODYNAMIC TURBULENCE; ACCRETION DISKS; CIRCULATION;
STABILITY; FRICTION
AB A concise review of the past and ongoing laboratory experiments on rotating flows and the associated angular momentum transport relevant to astrophysical disks is given in three categories: hydrodynamic, magnetohydrodynamic, gas and plasma experiments. Future prospects for these experiments, especially for those directly relevant to the magnetorotational instability (MRI), are discussed with an emphasis on a newly proposed swirling gas and plasma experiment.
C1 Princeton Univ, Princeton Plasma Phys Lab, Princeton, NJ 08543 USA.
RP Ji, HT (reprint author), Princeton Univ, Princeton Plasma Phys Lab, POB 451, Princeton, NJ 08543 USA.
EM hji@pppl.gov
NR 50
TC 1
Z9 1
U1 0
U2 1
PU CAMBRIDGE UNIV PRESS
PI CAMBRIDGE
PA THE PITT BUILDING, TRUMPINGTON ST, CAMBRIDGE CB2 1RP, CAMBS, ENGLAND
SN 1743-9213
BN 978-0-52119-741-0
J9 IAU SYMP P SERIES
JI IAU Symposium Proc. Series
PY 2011
IS 274
BP 18
EP 25
DI 10.1017/S174392131100651X
PG 8
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA BAQ17
UT WOS:000305161800003
ER
PT S
AU Beresnyak, A
AF Beresnyak, Andrey
BE Bonanno, A
DalPino, ED
Kosovichev, AG
TI Weakly imbalanced strong turbulence
SO ADVANCES IN PLASMA ASTROPHYSICS
SE IAU Symposium Proceedings Series
LA English
DT Proceedings Paper
CT 274th Symposium of the International-Astronomical-Union on Advances in
Plasma Astrophysics
CY SEP 06-10, 2010
CL Giardini Naxos, ITALY
SP Int Astron Union, Ist Nazl Astrofis, Univ Studi Catania, Dipartimento Fis & Astron, Ist Nazl Fis Nucl Sezione Catania, Lab Nazl Sud Sezione Catania, European Phys Soc, European Sci Fdn
DE MHD; turbulence; ISM: kinematics and dynamics
ID MAGNETOHYDRODYNAMIC TURBULENCE; MHD TURBULENCE; SPECTRUM
AB The theory of strong MHD turbulence with cross-helicity has been a subject of many recent studies. In this paper we focused our attention on low-imbalance limit and performed high-resolution 3D simulations. The results suggest that in this limit both w(+) = v + b and w(-) = v - b are cascaded strongly. The model for imbalance based on so-called "dynamic alignment" strongly contradicts numerical evidence.
C1 Los Alamos Natl Lab, Los Alamos, NM 87544 USA.
RP Beresnyak, A (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87544 USA.
OI Beresnyak, Andrey/0000-0002-2124-7024
NR 16
TC 0
Z9 0
U1 0
U2 0
PU CAMBRIDGE UNIV PRESS
PI CAMBRIDGE
PA THE PITT BUILDING, TRUMPINGTON ST, CAMBRIDGE CB2 1RP, CAMBS, ENGLAND
SN 1743-9213
BN 978-0-52119-741-0
J9 IAU SYMP P SERIES
JI IAU Symposium Proc. Series
PY 2011
IS 274
BP 72
EP 75
DI 10.1017/S1743921311006594
PG 4
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA BAQ17
UT WOS:000305161800011
ER
PT S
AU Podesta, JJ
AF Podesta, J. J.
BE Bonanno, A
DalPino, ED
Kosovichev, AG
TI Solar wind turbulence: Advances in observations and theory
SO ADVANCES IN PLASMA ASTROPHYSICS
SE IAU Symposium Proceedings Series
LA English
DT Proceedings Paper
CT 274th Symposium of the International-Astronomical-Union on Advances in
Plasma Astrophysics
CY SEP 06-10, 2010
CL Giardini Naxos, ITALY
SP Int Astron Union, Ist Nazl Astrofis, Univ Studi Catania, Dipartimento Fis & Astron, Ist Nazl Fis Nucl Sezione Catania, Lab Nazl Sud Sezione Catania, European Phys Soc, European Sci Fdn
DE Solar wind; turbulence; interplanetary medium; waves
ID MAGNETOHYDRODYNAMIC TURBULENCE; DISSIPATION RANGE; MAGNETIC-FIELD;
ALFVENIC TURBULENCE; HELIOS-OBSERVATIONS; INERTIAL RANGE; POWER SPECTRA;
1 AU; ANISOTROPY; DYNAMICS
AB Observations of plasma and magnetic field fluctuations in the solar wind provide a valuable source of information for the study of turbulence in collisionless astrophysical plasmas. Scientific data collected by various spacecraft over the last few decades has fueled steady progress in this field. Theoretical models, numerical simulations, and comparisons between theory and experiment have also contributed greatly to these advances. This review highlights some recent advances on the observational side including measurements of the anisotropy of inertial range fluctuations as revealed by the different scaling laws parallel and perpendicular to the mean magnetic field, measurements of the normalized cross-helicity spanning the entire inertial range which demonstrate that this quantity is scale invariant, and improved measurements of the spectrum of magnetic field fluctuations in the dissipation range that show a spectral break near the lengthscale of the electron gyro-radius. The theoretical implications of these results and comparisons between theory and observations are briefly summarized.
C1 Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Podesta, JJ (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA.
EM jpodesta@solar.stanford.edu
NR 40
TC 3
Z9 3
U1 0
U2 0
PU CAMBRIDGE UNIV PRESS
PI CAMBRIDGE
PA THE PITT BUILDING, TRUMPINGTON ST, CAMBRIDGE CB2 1RP, CAMBS, ENGLAND
SN 1743-9213
BN 978-0-52119-741-0
J9 IAU SYMP P SERIES
JI IAU Symposium Proc. Series
PY 2011
IS 274
BP 295
EP 301
DI 10.1017/S1743921311007162
PG 7
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA BAQ17
UT WOS:000305161800068
ER
PT B
AU Cholia, S
Porter, RJ
AF Cholia, Shreyas
Porter, R. Jefferson
BA Udoh, E
BF Udoh, E
TI Publication and Protection of Sensitive Site Information in a Grid
Infrastructure
SO CLOUD, GRID AND HIGH PERFORMANCE COMPUTING: EMERGING APPLICATIONS
LA English
DT Article; Book Chapter
AB In order to create a successful grid infrastructure, sites and resource providers must be able to publish information about their underlying resources and services. This information enables users and virtual organizations to make intelligent decisions about resource selection and scheduling, and facilitates accounting and troubleshooting services within the grid. However, such an outbound stream may include data deemed sensitive by a resource-providing site, exposing potential security vulnerabilities or private user information. This study analyzes the various vectors of information being published from sites to grid infrastructures. In particular, it examines the data being published and collected in the Open Science Grid, including resource selection, monitoring, accounting, troubleshooting, logging and site verification data. We analyze the risks and potential threat models posed by the publication and collection of such data. We also offer some recommendations and best practices for sites and grid infrastructures to manage and protect sensitive data.
C1 [Cholia, Shreyas] Lawrence Berkeley Natl Lab, Natl Energy Res Sci Comp Ctr NERSC, Berkeley, CA 94720 USA.
[Porter, R. Jefferson] Lawrence Berkeley Natl Lab, NERSC, Berkeley, CA USA.
RP Cholia, S (reprint author), Lawrence Berkeley Natl Lab, Natl Energy Res Sci Comp Ctr NERSC, Berkeley, CA 94720 USA.
NR 9
TC 0
Z9 0
U1 0
U2 0
PU IGI GLOBAL
PI HERSEY
PA 701 E CHOCOLATE AVE, STE 200, HERSEY, PA 17033-1240 USA
BN 978-1-60960-604-6
PY 2011
BP 155
EP 164
DI 10.4018/978-1-60960-603-9.ch010
D2 10.4018/978-1-60960-603-9
PG 10
WC Computer Science, Hardware & Architecture
SC Computer Science
GA BZX25
UT WOS:000303200000011
ER
PT B
AU Pala, M
Cholia, S
Rea, SA
Smith, SW
AF Pala, Massimiliano
Cholia, Shreyas
Rea, Scott A.
Smith, Sean W.
BA Udoh, E
BF Udoh, E
TI Federated PKI Authentication in Computing Grids: Past, Present, and
Future
SO CLOUD, GRID AND HIGH PERFORMANCE COMPUTING: EMERGING APPLICATIONS
LA English
DT Article; Book Chapter
ID DISCOVERY; SERVICES
AB One of the most successful working examples of virtual organizations, computational Grids need authentication mechanisms that inter-operate across domain boundaries. Public Key Infrastructures (PKIs) provide sufficient flexibility to allow resource managers to securely grant access to their systems in such distributed environments. However, as PKIs grow and services are added to enhance both security and usability, users and applications must struggle to discover available resources-particularly when the Certification Authority (CA) is alien to the relying party. This chapter presents a successful story about how to overcome these limitations by deploying the PKI Resource Query Protocol (PRQP) into the grid security architecture. We also discuss the future of Grid authentication by introducing the Public Key System (PKS) and its key features to support federated identities.
C1 [Pala, Massimiliano; Smith, Sean W.] Dartmouth Coll, Dept Comp Sci, Hanover, NH 03755 USA.
[Cholia, Shreyas] Lawrence Berkeley Natl Lab, Natl Energy Res Sci Comp Ctr NERSC, Lawrence, KS USA.
[Rea, Scott A.] DigiCert Inc, Lindon, UT USA.
[Pala, Massimiliano] Dartmouth Coll, Inst Secur Technol & Soc, Hanover, NH 03755 USA.
RP Pala, M (reprint author), Dartmouth Coll, Dept Comp Sci, Hanover, NH 03755 USA.
NR 35
TC 0
Z9 0
U1 0
U2 0
PU IGI GLOBAL
PI HERSEY
PA 701 E CHOCOLATE AVE, STE 200, HERSEY, PA 17033-1240 USA
BN 978-1-60960-604-6
PY 2011
BP 165
EP 179
DI 10.4018/978-1-60960-603-9.ch011
D2 10.4018/978-1-60960-603-9
PG 15
WC Computer Science, Hardware & Architecture
SC Computer Science
GA BZX25
UT WOS:000303200000012
ER
PT J
AU Edwards, JV
Goheen, SC
AF Edwards, J. V.
Goheen, S. C.
BE Pan, N
Sun, G
TI New developments in functional medical textiles and their mechanism of
action
SO FUNCTIONAL TEXTILES FOR IMPROVED PERFORMANCE, PROTECTION AND HEALTH
SE Woodhead Publishing Series in Textiles
LA English
DT Article; Book Chapter
DE biomaterials; medical textiles; biocompatibility; implantables;
non-implantables; extracorporeals; chronic wound dressings; pressure
ulcer; hemorrhage control
ID EXTREMITY ARTERIAL HEMORRHAGES; LIFE-THREATENING COAGULOPATHY; TRAUMA
PATIENT HYPOTHERMIA; INCONTINENCE PADS; PRESSURE ULCERS; CELL APOPTOSIS;
CHRONIC WOUNDS; TISSUE-REPAIR; HUMAN SKIN; IN-VITRO
AB Functional medical textiles are undergoing a revolution in structural design. Medical textiles as non-implantables, implantables and extracorporeals are playing central roles in healthcare improvements enhancing and prolonging the quality of life. Developments in the design of materials that function at the biological-material interface address material biocompatibility and bioactive function. A deeper understanding of the physiological, biochemical and biophysical milieus of biomaterials is being achieved in critical areas like wound healing, implant biocompatibility, dialysis and pressure ulcer prevention, which coupled with advances in nanotechnology holds great promise for tissue engineering and areas of biomaterial design for wound healing and prevention.
C1 [Edwards, J. V.] ARS, USDA, So Reg Res Ctr, New Orleans, LA 70179 USA.
[Goheen, S. C.] Pacific NW Natl Lab, Natl Secur Directorate, Chem & Phys Sci Div, Richland, WA 99352 USA.
RP Edwards, JV (reprint author), ARS, USDA, So Reg Res Ctr, New Orleans, LA 70179 USA.
EM Vince.Edwards@ARS.USDA.GOV; steve.goheen@pnl.gov
NR 93
TC 0
Z9 0
U1 1
U2 2
PU WOODHEAD PUBL LTD
PI CAMBRIDGE
PA ABINGTON HALL ABINGTON, CAMBRIDGE CB1 6AH, CAMBS, ENGLAND
BN 978-0-85709-287-8
J9 WOODHEAD PUBL SER TE
PY 2011
IS 120
BP 293
EP 319
D2 10.1533/9780857092878
PG 27
WC Materials Science, Textiles
SC Materials Science
GA BYQ00
UT WOS:000299707700014
ER
PT B
AU van Dam, KK
Li, DS
Miller, SD
Cobb, JW
Green, ML
Ruby, CL
AF van Dam, Kerstin Kleese
Li, Dongsheng
Miller, Stephen D.
Cobb, John W.
Green, Mark L.
Ruby, Catherine L.
BE Furht, B
Escalante, A
TI Challenges in Data Intensive Analysis at Scientific Experimental User
Facilities
SO HANDBOOK OF DATA INTENSIVE COMPUTING
LA English
DT Article; Book Chapter
C1 [van Dam, Kerstin Kleese; Li, Dongsheng] Pacific NW Natl Lab, Fundamental & Computat Sci Dept, Richland, WA 99352 USA.
[Miller, Stephen D.; Cobb, John W.] Oak Ridge Natl Lab, Data Syst Grp, Neutron Scattering Sci Div, Oak Ridge, TN USA.
[Green, Mark L.; Ruby, Catherine L.] Syst Integrat Grp Tech X Corp, Williamsville, NY USA.
RP van Dam, KK (reprint author), Pacific NW Natl Lab, Fundamental & Computat Sci Dept, Richland, WA 99352 USA.
EM Kerstin.KleeseVanDam@pnl.gov; dongsheng.li@pnnl.gov; millersd@ornl.gov;
cobbjw@ornl.gov; mlgreen@txcorp.com; rlruby@txcorp.com
OI Kleese van Dam, Kerstin/0000-0002-5794-7620
NR 53
TC 1
Z9 1
U1 0
U2 1
PU SPRINGER
PI NEW YORK
PA 233 SPRING STREET, NEW YORK, NY 10013, UNITED STATES
BN 978-1-4614-1414-8
PY 2011
BP 249
EP 284
DI 10.1007/978-1-4614-1415-5_10
D2 10.1007/978-1-4614-1415-5
PG 36
WC Computer Science, Theory & Methods
SC Computer Science
GA BZZ54
UT WOS:000303419100010
ER
PT B
AU Nielsen, LC
Druhan, JL
Yang, WB
Brown, ST
DePaolo, DJ
AF Nielsen, Laura C.
Druhan, Jennifer L.
Yang, Wenbo
Brown, Shaun T.
DePaolo, Donald J.
BE Baskaran, M
TI Calcium Isotopes as Tracers of Biogeochemical Processes
SO HANDBOOK OF ENVIRONMENTAL ISOTOPE GEOCHEMISTRY, VOLS 1 AND 2
SE Advances in Isotope Geochemisty
LA English
DT Article; Book Chapter
ID IONIZATION MASS-SPECTROMETRY; MC-ICP-MS; CA ISOTOPES;
PLANKTONIC-FORAMINIFERA; TEMPERATURE-DEPENDENCE; CARBON-DIOXIDE;
FRACTIONATION; CYCLE; DELTA-CA-44; SEAWATER
AB The prevalence of calcium as a major cation in surface and oceanic environments, the necessity of calcium in the functioning of living cells and bone growth, and the large spread in mass between calcium isotopes all suggest that calcium isotope biogeochemistry can be an important avenue of insight into past and present biogeochemical cycling processes. In the following chapter, we review the main areas of research where Ca isotope studies have been pursued and detail recent research results in biogeochemical applications. In marine environments, biogenic fractionation of Ca isotopes during biomineralization produces predictable offsets in some organisms, which facilitate the reconstruction of seawater delta Ca-44/14 over geologic timescales. In terrestrial studies, observed Ca isotope fractionation between soil and various components of vegetation enables the construction of a local Ca budget and provides a partial explanation for the scale of Ca isotopic variability within a single watershed. The research reviewed in this chapter provides a foundation for future investigations into the macro-and microscopic processes and biochemical pathways dictating the distribution of this essential nutrient using stable Ca isotope ratios.
C1 [Nielsen, Laura C.] Univ Calif Berkeley, Dept Earth & Planetary Sci, Berkeley, CA 94720 USA.
[Nielsen, Laura C.; Druhan, Jennifer L.; Yang, Wenbo; Brown, Shaun T.; DePaolo, Donald J.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Earth Sci, Berkeley, CA 94720 USA.
RP Nielsen, LC (reprint author), Univ Calif Berkeley, Dept Earth & Planetary Sci, Berkeley, CA 94720 USA.
EM Inielsen@berkeley.edu; depaolo@eps.berkeley.edu
RI Druhan, Jennifer/G-2584-2011; Brown, Shaun/E-9398-2015
OI Brown, Shaun/0000-0002-2159-6718
NR 97
TC 14
Z9 15
U1 1
U2 13
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
BN 978-3-642-10636-1
J9 ADV ISOTOP GEOCHEM
PY 2011
BP 105
EP 124
DI 10.1007/978-3-642-10637-8_7
D2 10.1007/978-3-642-10637-8
PG 20
WC Geochemistry & Geophysics
SC Geochemistry & Geophysics
GA BZC58
UT WOS:000301099200007
ER
PT B
AU Hong, GH
Hamilton, TF
Baskaran, M
Kenna, TC
AF Hong, G. -H.
Hamilton, T. F.
Baskaran, M.
Kenna, T. C.
BE Baskaran, M
TI Applications of Anthropogenic Radionuclides as Tracers to Investigate
Marine Environmental Processes
SO HANDBOOK OF ENVIRONMENTAL ISOTOPE GEOCHEMISTRY, VOLS 1 AND 2
SE Advances in Isotope Geochemisty
LA English
DT Article; Book Chapter
ID SALT-MARSH SEDIMENTS; SOUTHERN NORTH-SEA; PACIFIC-OCEAN; ARCTIC-OCEAN;
PLUTONIUM ISOTOPES; BLACK-SEA; FALLOUT RADIONUCLIDES; REPROCESSING
WASTES; TEMPORAL VARIATIONS; CHERNOBYL ACCIDENT
AB Since the 1940, anthropogenic radionuclides have been intentionally and accidentally introduced into the environment through a number of activities including nuclear weapons development, production, and testing, and nuclear power generation. In the ensuing decades, a significant body of research has been conducted that not only addresses the fate and transport of the anthropogenic radionuclides in the marine environment but allows their application as tracers to better understand a variety of marine and oceanic processes. In many cases, the radionuclides are derived entirely from anthropogenic sources and the release histories are well constrained. These attributes, in conjunction with a range of different geochemical characteristics (e.g., half-life, particle affinity, etc.), make the anthropogenic radionuclides extremely useful tools. A number of long-lived and largely soluble radionuclides (e.g., H-3, C-4, Kr-85, Sr-90, Tc-99, Sb-125, I-129, Cs-134, Cs-137) have been utilized for tracking movement of water parcels in horizontal and vertical directions in the sea, whereas more particle-reactive radionuclides (e.g., Mn-54, Fe-55, Ru-103, Ru-16, Pu isotopes) have been utilized for tracking the movement of particulate matter in the marine environment. In some cases, pairs of parent-daughter nuclides (e.g., H-3-He-3, Sr-90-Y-90 and Pu-241-Am-241) have been used to provide temporal constraints on processes such as the dynamics of particles in the water column and sediment deposition at the seafloor. Often information gained from anthropogenic radionuclides provides unique/complementary information to that gained from naturally occurring radionuclides or stable constituents, and leads to improved insight into natural marine processes.
C1 [Hong, G. -H.] Korea Ocean Res & Dev Inst, Kyonggi Do 425600, South Korea.
[Hamilton, T. F.] Lawrence Livermore Natl Lab, Ctr Accelerator Mass Spectrometry, Livermore, CA 94551 USA.
[Baskaran, M.] Wayne State Univ, Dept Geol, Detroit, MI 48202 USA.
[Kenna, T. C.] Columbia Univ, Lamont Doherty Earth Observ, Palisades, NY 10964 USA.
RP Hong, GH (reprint author), Korea Ocean Res & Dev Inst, Ansan POB 29, Kyonggi Do 425600, South Korea.
EM ghhong@kordi.re.kr; hamilton18@llnl.gov; baskaran@wayne.edu;
tkenna@ldeo.columbia.edu
NR 138
TC 10
Z9 10
U1 0
U2 2
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
BN 978-3-642-10636-1
J9 ADV ISOTOP GEOCHEM
PY 2011
BP 367
EP 394
DI 10.1007/978-3-642-10637-8_19
D2 10.1007/978-3-642-10637-8
PG 28
WC Geochemistry & Geophysics
SC Geochemistry & Geophysics
GA BZC58
UT WOS:000301099200019
ER
PT B
AU Sturchio, NC
Bohlke, JK
Gu, BH
Hatzinger, PB
Jackson, WA
AF Sturchio, Neil C.
Boehlke, John Karl
Gu, Baohua
Hatzinger, Paul B.
Jackson, W. Andrew
BE Baskaran, M
TI Isotopic Tracing of Perchlorate in the Environment
SO HANDBOOK OF ENVIRONMENTAL ISOTOPE GEOCHEMISTRY, VOLS 1 AND 2
SE Advances in Isotope Geochemisty
LA English
DT Article; Book Chapter
ID UNITED-STATES; NATURAL PERCHLORATE; ATACAMA DESERT; NITRATE DEPOSITS;
OZONE OXIDATION; NORTH-AMERICA; HIGH-PLAINS; NEW-MEXICO; CHLORINE;
FRACTIONATION
AB Isotopic measurements can be used for tracing the sources and behavior of environmental contaminants. Perchlorate (ClO4-) has been detected widely in groundwater, soils, fertilizers, plants, milk, and human urine since 1997, when improved analytical methods for analyzing ClO4- concentration became available for routine use. Perchlorate ingestion poses a risk to human health because of its interference with thyroidal hormone production. Consequently, methods for isotopic analysis of ClO4- have been developed and applied to assist evaluation of the origin and migration of this common contaminant. Isotopic data are now available for stable isotopes of oxygen and chlorine, as well as Cl-36 isotopic abundances, in ClO4- samples from a variety of natural and synthetic sources. These isotopic data provide a basis for distinguishing sources of ClO4- found in the environment, and for understanding the origin of natural ClO4-. In addition, the isotope effects of microbial ClO4- reduction have been measured in laboratory and field experiments, providing a tool for assessing ClO4- attenuation in the environment. Isotopic data have been used successfully in some areas for identifying major sources of ClO4- contamination in drinking water supplies. Questions about the origin and global biogeochemical cycle of natural ClO4- remain to be addressed; such work would benefit from the development of methods for preparation and isotopic analysis of ClO4- in samples with low concentrations and complex matrices.
C1 [Sturchio, Neil C.] Univ Illinois, Chicago, IL 60607 USA.
[Boehlke, John Karl] US Geol Survey, Reston, VA 20192 USA.
[Gu, Baohua] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
[Hatzinger, Paul B.] Shaw Environm Inc, Lawrenceville, NJ 08648 USA.
[Jackson, W. Andrew] Texas Tech Univ, Lubbock, TX 79409 USA.
RP Sturchio, NC (reprint author), Univ Illinois, Chicago, IL 60607 USA.
EM sturchio@uic.edu; jkbohlke@usgs.gov
NR 73
TC 4
Z9 5
U1 3
U2 5
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
BN 978-3-642-10636-1
J9 ADV ISOTOP GEOCHEM
PY 2011
BP 437
EP 452
DI 10.1007/978-3-642-10637-8_22
D2 10.1007/978-3-642-10637-8
PG 16
WC Geochemistry & Geophysics
SC Geochemistry & Geophysics
GA BZC58
UT WOS:000301099200022
ER
PT B
AU Waugh, WJ
Glenn, EP
Charley, PH
Carroll, MK
Maxwell, B
O'Neill, MK
AF Waugh, William J.
Glenn, Edward P.
Charley, Perry H.
Carroll, Marnie K.
Maxwell, Beverly
O'Neill, Michael K.
BE Burger, J
TI Helping Mother Earth Heal: Dine College and Enhanced Natural Attenuation
Research at U. S. Department of Energy Uranium Processing Sites on
Navajo Land
SO STAKEHOLDERS AND SCIENTISTS: ACHIEVING IMPLEMENTABLE SOLUTIONS TO ENERGY
AND ENVIRONMENTAL ISSUES
LA English
DT Article; Book Chapter
ID SHRUBS; ARIZONA; SOIL
AB Dine College is a key stakeholder and partner with the U.S. Department of Energy in efforts to develop and implement sustainable and culturally acceptable remedies for soil and groundwater contamination at uranium mill tailings processing and disposal sites on Navajo Nation land. Through an educational philosophy grounded in the Navajo traditional living system which places human life in harmony with the natural world, the College has helped guide researchers to look beyond traditional engineering approaches and seek more sustainable remedies for soil and groundwater contamination at former uranium mill sites near Monument Valley, Arizona, and Shiprock, New Mexico. Students and researchers are asking first, what is Mother Earth already doing to heal a land injured by uranium mill tailings, and second, what can we do to help her? This guidance has led researchers to investigate applications of natural and enhanced attenuation remedies involving native plants phytoremediation, and indigenous microorganisms - bioremediation. College faculty, student interns, and local residents have contributed to several aspects of the pilot studies including site characterization, sampling designs, installation and maintenance of plantings and irrigation systems, monitoring, and data interpretation. Research results look promising.
C1 [Waugh, William J.] SM Stoller Corp, DOE Environm Sci Lab, Grand Junction, CO 81503 USA.
[Carroll, Marnie K.; Maxwell, Beverly] Dine Coll, Dine Environm Inst, Shiprock, NM 87420 USA.
[O'Neill, Michael K.] New Mexico State Univ, Agr Sci Ctr Farmington, Farmington, NM 87499 USA.
[Charley, Perry H.] Dine Coll, Uranium Educ Program, Shiprock, NM 87420 USA.
[Glenn, Edward P.] Univ Arizona, Environm Res Lab, Tucson, AZ 85705 USA.
RP Waugh, WJ (reprint author), SM Stoller Corp, DOE Environm Sci Lab, Grand Junction, CO 81503 USA.
EM Jody.Waugh@lm.doe.gov; eglenn@ag.arizona.edu; phcharley@dinecollege.edu;
mkcarroll@dinecollege.edu; bevmaxwell@dinecollege.edu; moneill@nmsu.edu
NR 27
TC 1
Z9 1
U1 1
U2 2
PU SPRINGER
PI NEW YORK
PA 233 SPRING STREET, NEW YORK, NY 10013, UNITED STATES
BN 978-1-4419-8812-6
PY 2011
BP 119
EP 147
DI 10.1007/978-1-4419-8813-3_6
D2 10.1007/978-1-4419-8813-3
PG 29
WC Environmental Sciences
SC Environmental Sciences & Ecology
GA BYL56
UT WOS:000299249000006
ER
PT S
AU Mukherjee, PP
Wang, CY
AF Mukherjee, Partha P.
Wang, Chao-Yang
BE Li, XG
TI Polymer Electrolyte Fuel Cell Modelling - a Pore-scale Perspective
SO GREEN ENERGY: BASIC CONCEPTS AND FUNDAMENTALS
SE Progress in Green Energy
LA English
DT Article; Book Chapter
ID DIRECT NUMERICAL-SIMULATION; LATTICE BOLTZMANN-EQUATION; LIQUID WATER
TRANSPORT; GAS-DIFFUSION LAYERS; STATE 2-PHASE FLOW; POROUS-MEDIA;
RELATIVE PERMEABILITIES; CAPILLARY-PRESSURE; MATHEMATICAL-MODEL;
CATALYST LAYERS
C1 [Mukherjee, Partha P.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Wang, Chao-Yang] Penn State Univ, Electrochem Engine Ctr, Dept Mech Engn & Mat Sci & Engn, University Pk, PA 16802 USA.
RP Mukherjee, PP (reprint author), Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
EM partham@lanl.gov; cxw31@psu.edu
RI Wang, Chao-Yang/C-4122-2009
NR 86
TC 3
Z9 3
U1 0
U2 1
PU SPRINGER-VERLAG LONDON LTD
PI GODALMING
PA SWEETAPPLE HOUSE CATTESHALL RD FARNCOMBE, GODALMING GU7 1NH, SURREY,
ENGLAND
SN 2191-561X
BN 978-1-84882-647-2
J9 PROGR GREEN ENERG
PY 2011
VL 1
BP 181
EP 221
D2 10.1007/978-1-84882-647-2
PG 41
WC Energy & Fuels
SC Energy & Fuels
GA BZN50
UT WOS:000302103600005
ER
PT B
AU Demmie, PN
Ostoja-Starzewski, M
AF Demmie, Paul N.
Ostoja-Starzewski, Martin
BE Fosdick, R
Fried, E
Tortorelli, D
TI Waves in Fractal Media
SO METHODS AND TASTES IN MODERN CONTINUUM MECHANICS: TO THE MEMORY OF
DONALD E. CARLSON
LA English
DT Article; Book Chapter
DE Fractals; Micromechanical theories; Elastic materials; Waves
ID EQUATIONS; SOLIDS
AB The term fractal was coined by Benoit Mandelbrot to denote an object that is broken or fractured in space or time. Fractals provide appropriate models for many media for some finite range of length scales with lower and upper cutoffs. Fractal geometric structures with cutoffs are called pre-fractals. By fractal media, we mean media with pre-fractal geometric structures. The basis of this study is the recently formulated extension of continuum thermomechanics to such media. The continuum theory is based on dimensional regularization, in which we employ fractional integrals to state global balance laws. The global forms of governing equations are cast in forms involving conventional (integer-order) integrals, while the local forms are expressed through partial differential equations with derivatives of integer order. Using Hamilton's principle, we derive the equations of motion of a fractal elastic solid under finite strains. Next, we consider one-dimensional models and obtain equations governing nonlinear waves in such a solid. Finally, we study shock fronts in linear viscoelastic solids under small strains. In all the cases, the derived equations for fractal media depend explicitly on fractal dimensions and reduce to conventional forms for continuous media with Euclidean geometries upon setting the dimensions to integers.
C1 [Ostoja-Starzewski, Martin] Univ Illinois, Dept Mech Sci & Engn, Inst Condensed Matter Theory, Urbana, IL 61801 USA.
[Ostoja-Starzewski, Martin] Univ Illinois, Beckman Inst, Urbana, IL 61801 USA.
[Demmie, Paul N.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Ostoja-Starzewski, M (reprint author), Univ Illinois, Dept Mech Sci & Engn, Inst Condensed Matter Theory, Urbana, IL 61801 USA.
EM pndemmi@sandia.gov; martinos@illinois.edu
NR 24
TC 0
Z9 0
U1 0
U2 0
PU SPRINGER
PI NEW YORK
PA 233 SPRING STREET, NEW YORK, NY 10013, UNITED STATES
BN 978-94-007-1883-8
PY 2011
BP 187
EP 204
DI 10.1007/s10659-011-9333-6
PG 18
WC Mechanics
SC Mechanics
GA BZC43
UT WOS:000301088700011
ER
PT B
AU Gupta, A
Steigmann, DJ
Stolken, JS
AF Gupta, A.
Steigmann, D. J.
Stoelken, J. S.
BE Fosdick, R
Fried, E
Tortorelli, D
TI Aspects of the Phenomenological Theory of Elastic-Plastic Deformation
SO METHODS AND TASTES IN MODERN CONTINUUM MECHANICS: TO THE MEMORY OF
DONALD E. CARLSON
LA English
DT Article; Book Chapter
DE Elasticity; Crystalline solids; Rate-independent plasticity
ID STRAIN-GRADIENT PLASTICITY; DISLOCATIONS; STRESS; BODIES; SHEAR
AB Several issues pertaining to the phenomenological description of rate-independent plasticity in crystalline solids are discussed. These include energy dissipation, the specification of initial plastic deformation, material symmetry and the modeling of scale-dependent response.
C1 [Steigmann, D. J.] Univ Calif Berkeley, Dept Mech Engn, Berkeley, CA 94720 USA.
[Gupta, A.] Indian Inst Technol, Dept Mech Engn, Kanpur 208016, Uttar Pradesh, India.
[Stoelken, J. S.] Lawrence Livermore Natl Lab, Dept Mech Engn, Livermore, CA 94550 USA.
RP Steigmann, DJ (reprint author), Univ Calif Berkeley, Dept Mech Engn, Berkeley, CA 94720 USA.
EM steigman@me.berkeley.edu
NR 35
TC 0
Z9 0
U1 0
U2 0
PU SPRINGER
PI NEW YORK
PA 233 SPRING STREET, NEW YORK, NY 10013, UNITED STATES
BN 978-94-007-1883-8
PY 2011
BP 249
EP 266
DI 10.1007/s10659-010-9288-z
PG 18
WC Mechanics
SC Mechanics
GA BZC43
UT WOS:000301088700015
ER
PT S
AU Smoot, GF
AF Smoot, George F.
BE VallsGabaud, D
Boksenberg, A
TI Educational aspects of cosmology Global Cosmology Teachers Academy
SO ROLE OF ASTRONOMY IN SOCIETY AND CULTURE
SE IAU Symposium Proceedings Series
LA English
DT Proceedings Paper
CT 260th Symposium of the International-Astronomical-Union
CY JAN 19-23, 2009
CL UNESCO, Paris, FRANCE
SP Observ Paris, Int Astronom Union, Acad Sci Paris, Inst Natl Sci Univ, Region Ile France
HO UNESCO
DE Science education; STEM learning
AB This IAU-UNESCO Symposium 260 'The role of Astronomy in Society and Culture' celebrates the 400th anniversary of the beginning of modern astronomy marked by when Galileo turned a telescope to the sky making so many astounding discoveries that changed our perceived position in the solar system. This talk celebrates that cosmology has entered this era in an even deeper and profound discoveries that have changed our perception of the universe and our place in it. As such cosmology is a great interest and educational tool for capturing the attention of the young and broadening their perspective. The first portion of the talk outlines and reveals some of these observations and the second with examples and vision of how this can provide an encompassing storyline for STEM learning. This proceedings also emphasizes the key role that partnerships including the private sector are valuable, critical, and rewarding part of the effort.
C1 [Smoot, George F.] Lawrence Berkeley Natl Lab, Astrophys Grp, Berkeley, CA 94720 USA.
EM GFSmoot@lbl.gov
NR 0
TC 0
Z9 0
U1 0
U2 0
PU CAMBRIDGE UNIV PRESS
PI CAMBRIDGE
PA THE PITT BUILDING, TRUMPINGTON ST, CAMBRIDGE CB2 1RP, CAMBS, ENGLAND
SN 1743-9213
BN 978-0-521-76477-3
J9 IAU SYMP P SERIES
JI IAU Symposium Proc. Series
PY 2011
IS 260
BP 622
EP 628
DI 10.1017/S1743921311002936
PG 7
WC Astronomy & Astrophysics; History & Philosophy Of Science; Social
Sciences, Interdisciplinary
SC Astronomy & Astrophysics; History & Philosophy of Science; Social
Sciences - Other Topics
GA BAM51
UT WOS:000304684000087
ER
PT B
AU Riebel, D
Meixner, M
Srinivasan, S
Fraser, O
Cook, K
Vijh, U
AF Riebel, D.
Meixner, M.
Srinivasan, S.
Fraser, O.
Cook, K.
Vijh, U.
BE Kerschbaum, F
Lebzelter, T
Wing, RF
TI Period-Luminosity Relations for LMC AGB Stars
SO WHY GALAXIES CARE ABOUT AGB STARS II: SHINING EXAMPLES AND COMMON
INHABITANTS
SE Astronomical Society of the Pacific Conference Series
LA English
DT Proceedings Paper
CT Conference on Why Galaxies Care About AGB Stars II: Shining Examples and
Common Inhabitants
CY AUG 16-20, 2010
CL Univ Campus, Vienna, AUSTRIA
HO Univ Campus
ID LARGE-MAGELLANIC-CLOUD; MASS-LOSS RETURN; LONG SECONDARY PERIODS;
EVOLVED STARS; RED GIANTS; VARIABLES; MACHO
C1 [Riebel, D.] Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA.
[Meixner, M.] Space Telescope Sci Inst, Baltimore, MD USA.
[Srinivasan, S.] Univ Washington, Dept Astron, Seattle, WA USA.
[Fraser, O.] Inst Astrophys Paris, Paris, France.
[Cook, K.] IGPP, Lawrence Livermore Natl Lab, Livermore, CA USA.
[Vijh, U.] Univ Toledo, Ritter Astrophys Res Ctr, Toledo, OH USA.
RP Riebel, D (reprint author), Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA.
NR 12
TC 0
Z9 0
U1 0
U2 0
PU ASTRONOMICAL SOC PACIFIC
PI SAN FRANCISCO
PA 390 ASHTON AVE, SAN FRANCISCO, CA 94112 USA
BN 978-1-58381-770-4
J9 ASTR SOC P
PY 2011
VL 445
BP 539
EP +
PG 2
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA BAH05
UT WOS:000304132300120
ER
PT B
AU Konopacky, QM
Ghez, AM
Macintosh, BA
White, RJ
Barman, TS
Rice, EL
Hallinan, G
AF Konopacky, Q. M.
Ghez, A. M.
Macintosh, B. A.
White, R. J.
Barman, T. S.
Rice, E. L.
Hallinan, G.
BE JohnsKrull, CMJ
Browning, MK
West, AA
TI Rotational Velocities of Very Low Mass Binaries
SO 16TH CAMBRIDGE WORKSHOP ON COOL STARS, STELLAR SYSTEMS AND THE SUN
SE Astronomical Society of the Pacific Conference Series
LA English
DT Proceedings Paper
CT 16th Cambridge Workshop on Cool Stars, Stellar Systems and the Sun
CY AUG 28-SEP 03, 2010
CL Univ Washington, Seattle, WA
SP Natl Sci Fdn, NASA Astrobiol Inst, European Space Agcy, Astrophys Res Consortium/Apache Point Observ, Univ Washington Coll Arts & Sci, Univ Washington Dept Astron
HO Univ Washington
ID L-DWARFS; CHROMOSPHERIC ACTIVITY; MULTIPLE SYSTEMS; BROWN DWARF; RADIO;
EMISSION; DYNAMO
AB We present rotational velocities for individual components of eleven very low mass (VLM) binaries with spectral types between M7.5 and L4. These results are based on observations taken with the near-infrared spectrograph, NIRSPEC, and the Keck II laser guide star adaptive optics (LOS AO) system. The binaries were targeted as part of a dynamical mass program, and their orbital inclinations are used to translate vsini into a rotational velocity for each component. We find that the observed sources tend to be rapid rotators (vsini > 10 km s(-1)), consistent with previous measurements for ultracool objects. Five systems have component vsini's that are statistically different, with three binaries having velocity differences greater than 25 km s(-1). To bring these discrepant rotational velocities into agreement would require their rotational axes to be inclined between 10 to 40 degrees with respect to each other, and that at least one component has a significant inclination with respect to the orbital plane. Alternatively, each component could be rotating at a different rate, even though they have similar spectral types. Both differing rotational velocities and inclinations have interesting implications for binary star formation. Two of the binaries with large differences in rotational velocity are also known radio sources, LP 349-25AB and 2MASS 0746+20AB. LP 349-25B is rotating at similar to 95 km s(-1), within a factor of similar to 3 of the break up speed, and is one of the most rapidly rotating VLM objects known.
C1 [Konopacky, Q. M.; Macintosh, B. A.] Lawrence Livermore Natl Lab, 7000 East Ave, Livermore, CA 94550 USA.
[Ghez, A. M.] Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA.
Georgia State Univ, Dept Phys & Astron, Atlanta, GA 30303 USA.
[Barman, T. S.] Lowell Observ, 1400 W Mars Hill Rd, Flagstaff, AZ 86001 USA.
[Rice, E. L.] Amer Museum Nat Hist, Dept Astrophys, New York, NY 10024 USA.
[Hallinan, G.] Univ Calif Berkeley, Dept Phys & Astron, Berkeley, CA 94720 USA.
RP Konopacky, QM (reprint author), Lawrence Livermore Natl Lab, 7000 East Ave, Livermore, CA 94550 USA.
RI Rice, Emily/G-4446-2013
OI Rice, Emily/0000-0002-3252-5886
FU U.S. Department of Energy; Lawrence Livermore National Laboratory
[DEAC52-07NA27344]; NASA [NNX1 OAH39G]; W.M. Keck foundation
FX This work was performed under the auspices of the U.S. Department of
Energy by Lawrence Livermore National Laboratory under Contract
DEAC52-07NA27344. This work is support by NASA Origins Grant NNX1
OAH39G. The W.M. Keck Observatory is operated as a scientific
partnership among the California Institute of Technology, the University
of California and the National Aeronautics and Space Administration. The
Observatory was made possible by the generous financial support of the
W.M. Keck foundation.
NR 23
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PU ASTRONOMICAL SOC PACIFIC
PI SAN FRANCISCO
PA 390 ASHTON AVE, SAN FRANCISCO, CA 94112 USA
BN 978-1-58381-776-6
J9 ASTR SOC P
PY 2011
VL 448
BP 147
EP +
PG 2
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA BAK14
UT WOS:000304381600016
ER
PT B
AU Helling, C
Pedretti, E
Berdyugina, S
Vidotto, AA
Beeck, B
Baron, E
Showman, AP
Agol, E
Homeier, D
AF Helling, Ch.
Pedretti, E.
Berdyugina, S.
Vidotto, A. A.
Beeck, B.
Baron, E.
Showman, A. P.
Agol, E.
Homeier, D.
BE JohnsKrull, CMJ
Browning, MK
West, AA
TI Aspects of Multi-Dimensional Modelling of Substellar Atmospheres
SO 16TH CAMBRIDGE WORKSHOP ON COOL STARS, STELLAR SYSTEMS AND THE SUN
SE Astronomical Society of the Pacific Conference Series
LA English
DT Proceedings Paper
CT 16th Cambridge Workshop on Cool Stars, Stellar Systems and the Sun
CY AUG 28-SEP 03, 2010
CL Univ Washington, Seattle, WA
SP Natl Sci Fdn, NASA Astrobiol Inst, European Space Agcy, Astrophys Res Consortium/Apache Point Observ, Univ Washington Coll Arts & Sci, Univ Washington Dept Astron
HO Univ Washington
ID COMOVING-FRAME EQUATION; RADIATIVE-TRANSFER; HD 189733B; RELATIVISTIC
FLOWS; EXTRASOLAR PLANET; SCATTERED-LIGHT; HOT JUPITERS; CIRCULATION;
SIMULATIONS; WASP-12B
AB Theoretical arguments and observations suggest that the atmospheres of Brown Dwarfs and planets are very dynamic on chemical and on physical time scales. The modelling of such substellar atmospheres has, hence, been much more demanding than initially anticipated. This Splinter(1) has combined new developments in atmosphere modelling, with novel observational techniques, and new challenges arising from planetary and space weather observations.
C1 [Helling, Ch.; Pedretti, E.; Vidotto, A. A.] Univ St Andrews, Sch Phys & Astron, SUPA, St Andrews KY16 9SS, N Haugh, Scotland.
[Berdyugina, S.] Kiepenheuer Inst Sonnenphys, D-79104 Freiburg, Germany.
[Beeck, B.] Max Planck Inst Solar Syst Res, D-37191 Katlenburg Lindau, Germany.
[Beeck, B.; Homeier, D.] Univ Gottingen, Inst Astrophys, D-37077 Gottingen, Germany.
[Baron, E.] Univ Oklahoma, Dept Phys & Astron, Norman, OK 73019 USA.
[Baron, E.] Lawrence Berkeley Natl Lab, Comp Res Div, Berkeley, CA 94720 USA.
[Showman, A. P.] Univ Arizona, Dept Planetary Sci, Tucson, AZ 85721 USA.
[Agol, E.] Univ Washington, Dept Astron, Seattle, WA 98195 USA.
RP Helling, C (reprint author), Univ St Andrews, Sch Phys & Astron, SUPA, St Andrews KY16 9SS, N Haugh, Scotland.
OI Baron, Edward/0000-0001-5393-1608; /0000-0002-0802-9145
FU NASA [NAS5-26555]; NERSC; Office of Science of the U.S. Department of
Energy [DE-AC02-05CH11231]; Hochstleistungs Rechenzentrum Nord (HLRN);
NSF [0645416]; NASA; DAAD; ANR; PNPS of CNRS/INSU, France
FX EB was supported by NSF grant AST-0707704, US DOE Grant
DEFG02-07ER41517, and by programnumberHST-GO-12298.05-Awhich is
supported by NASA through a grant from the Space Telescope Science
Institute, which is operated by the Association of Universities for
Research in Astronomy, Incorporated, under NASA contract NAS5-26555.
This research used resources of the NERSC, which is supported by the
Office of Science of the U.S. Department of Energy under Contract No.
DE-AC02-05CH11231; and the Hochstleistungs Rechenzentrum Nord (HLRN).
Support for EA was provided by NSF through CAREER Grant No. 0645416 and
by NASA through an award issued by JPL/Caltech. APS acknowledges funding
from NASA Origins. D. H. gratefully acknowledges support from a foreign
travel grant by the DAAD. F. A. and B. F. acknowledge financial support
from the ANR, and the PNPS of CNRS/INSU, France. Stellar and substellar
atmosphere models for this study have been calculated at the GWDG.
NR 51
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PI SAN FRANCISCO
PA 390 ASHTON AVE, SAN FRANCISCO, CA 94112 USA
BN 978-1-58381-776-6
J9 ASTR SOC P
PY 2011
VL 448
BP 403
EP +
PG 3
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA BAK14
UT WOS:000304381600041
ER
PT J
AU Reilly, J
AF Reilly, John
BE Dinar, A
Mendelsohn, R
TI The role of growth and trade in agricultural adaptation to environmental
change
SO HANDBOOK ON CLIMATE CHANGE AND AGRICULTURE
LA English
DT Article; Book Chapter
ID UNITED-STATES AGRICULTURE; CLIMATE-CHANGE; CARBON-DIOXIDE; IMPACT;
OZONE; FOOD; EMISSIONS; BENEFITS; FORESTS; CROPS
C1 [Reilly, John] MIT, Joint Program Sci & Policy Global Change, Cambridge, MA 02139 USA.
[Reilly, John] MIT, Sloan Sch, Cambridge, MA 02139 USA.
[Reilly, John] US Global Change Res Program, Washington, DC USA.
[Reilly, John] ERS, USDA, Washington, DC USA.
[Reilly, John] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Reilly, John] Inst Energy Anal, Oak Ridge, TN USA.
[Reilly, John] Oak Ridge Associated Univ, Oak Ridge, TN 37831 USA.
RP Reilly, J (reprint author), MIT, Joint Program Sci & Policy Global Change, Cambridge, MA 02139 USA.
NR 46
TC 0
Z9 0
U1 0
U2 1
PU EDWARD ELGAR PUBLISHING LTD
PI CHELTENHAM
PA GLENSANDA HOUSE, MONTPELLIER PARADE, CHELTENHAM GL50 1UA, GLOS, ENGLAND
BN 978-1-84980-116-4
PY 2011
BP 230
EP 268
PG 39
WC Agriculture, Multidisciplinary; Environmental Sciences
SC Agriculture; Environmental Sciences & Ecology
GA BZB32
UT WOS:000300991900011
ER
PT J
AU Larsen, SG
Burian, SJ
AF Larsen, Sara G.
Burian, Steven J.
BE Kenney, DS
Wilkinson, R
TI Energy requirements for water supply in Utah
SO WATER-ENERGY NEXUS IN THE AMERICAN WEST
LA English
DT Article; Book Chapter
C1 [Larsen, Sara G.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Burian, Steven J.] Univ Utah, Salt Lake City, UT 84112 USA.
RP Larsen, SG (reprint author), Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
OI Burian, Steven/0000-0003-0523-4968
NR 17
TC 0
Z9 0
U1 0
U2 0
PU EDWARD ELGAR PUBLISHING LTD
PI CHELTENHAM
PA GLENSANDA HOUSE, MONTPELLIER PARADE, CHELTENHAM GL50 1UA, GLOS, ENGLAND
BN 978-1-84980-936-8
PY 2011
BP 153
EP 164
PG 12
WC Geosciences, Multidisciplinary; Water Resources
SC Geology; Water Resources
GA BYH99
UT WOS:000298876200012
ER
PT B
AU Beresnyak, A
AF Beresnyak, Andrey
BE Pogorelov, NV
Audit, E
Zank, GP
TI Strong Imbalanced Turbulence
SO NUMERICAL MODELING OF SPACE PLASMA FLOWS - ASTRONUM 2010
SE Astronomical Society of the Pacific Conference Series
LA English
DT Proceedings Paper
CT 5th Annual International Conference on Numerical Modeling of Space
Plasma Flows (ASTRONUM 2010)
CY JUN 13-18, 2010
CL San Diego, CA
ID MAGNETOHYDRODYNAMIC TURBULENCE; MHD TURBULENCE; SPECTRUM
AB The theory of strong MHD turbulence with cross-helicity (or energy imbalance) has been a subject of many recent studies. In this paper we focused our attention on low-imbalance limit and performed high-resolution 3D simulations. The results suggest that in the limit of small imbalances both w(+) = v + b and w(-) = v b components are cascaded strongly, as expected, while the model for imbalance based on so-called "dynamic alignment" strongly contradicts numerical evidence.
C1 Los Alamos Natl Lab, Los Alamos, NM 87544 USA.
RP Beresnyak, A (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87544 USA.
NR 15
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PI SAN FRANCISCO
PA 390 ASHTON AVE, SAN FRANCISCO, CA 94112 USA
BN 978-1-58381-768-1
J9 ASTR SOC P
PY 2011
VL 444
BP 3
EP 8
PG 6
WC Astronomy & Astrophysics; Mathematics, Applied
SC Astronomy & Astrophysics; Mathematics
GA BAH66
UT WOS:000304180200001
ER
PT B
AU Kaman, T
Glimm, J
Sharp, DH
AF Kaman, Tulin
Glimm, James
Sharp, David H.
BE Pogorelov, NV
Audit, E
Zank, GP
TI Uncertainty Quantification for Turbulent Mixing Simulations
SO NUMERICAL MODELING OF SPACE PLASMA FLOWS - ASTRONUM 2010
SE Astronomical Society of the Pacific Conference Series
LA English
DT Proceedings Paper
CT 5th Annual International Conference on Numerical Modeling of Space
Plasma Flows (ASTRONUM 2010)
CY JUN 13-18, 2010
CL San Diego, CA
ID BUBBLE MERGER MODEL
AB We have achieved validation in the form of simulation-experiment agreement for Rayleigh-Taylor turbulent mixing rates (known as a) over the past decade. The problem was first posed sixty years ago. Recent improvements in our simulation technology allow sufficient precision to distinguish between mixing rates for different experiments. We explain the sensitivity and non-universality of the mixing rate. These play a role in the difficulties experienced by many others in efforts to compare experiment with simulation. We analyze the role of initial conditions, which were not recorded for the classical experiments of Youngs et al. Reconstructed initial conditions with error bars are given. The time evolution of the long and short wave length portions of the instability are analyzed. We show that long wave length perturbations are strong at t = 0, but are quickly overcome by the rapidly growing short wave length perturbations. These conclusions, based solely on experimental data analysis, are in agreement with results from theoretical bubble merger models and numerical simulation studies but disagree with models based on superposition of modes.
C1 [Kaman, Tulin; Glimm, James] SUNY Stony Brook, Dept Appl Math & Stat, Stony Brook, NY 11794 USA.
[Glimm, James] Comptat Sci Ctr, Brookhaven Nalt Lab, Upton, NY 11793 USA.
[Sharp, David H.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Kaman, T (reprint author), SUNY Stony Brook, Dept Appl Math & Stat, Stony Brook, NY 11794 USA.
FU Nuclear Energy University Program of the Department of Energy
[NEUP-09-349]; Battelle Energy Alliance LLC [00088495]; Leland Stanford
Junior University [2175022040367A]; Army Research Office
[W911NF0910306]; Office of Science of the U.S. Department of Energy
[DE-AC02-06CH11357]
FX This work is supported in part by the Nuclear Energy University Program
of the Department of Energy, project NEUP-09-349, Battelle Energy
Alliance LLC 00088495 (subaward with DOE as prime sponsor), Leland
Stanford Junior University 2175022040367A (subaward with DOE as prime
sponsor), Army Research OfficeW911NF0910306. Computational resources
were provided by the Stony Brook Galaxy cluster and the Stony Brook/BNL
New York Blue Gene/L IBM machine. This research used resources of the
Argonne Leadership Computing Facility at Argonne National Laboratory,
which is supported by the Office of Science of the U.S. Department of
Energy under contract DE-AC02-06CH11357.
NR 19
TC 1
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U1 0
U2 8
PU ASTRONOMICAL SOC PACIFIC
PI SAN FRANCISCO
PA 390 ASHTON AVE, SAN FRANCISCO, CA 94112 USA
BN 978-1-58381-768-1
J9 ASTR SOC P
PY 2011
VL 444
BP 21
EP +
PG 3
WC Astronomy & Astrophysics; Mathematics, Applied
SC Astronomy & Astrophysics; Mathematics
GA BAH66
UT WOS:000304180200004
ER
PT B
AU Arge, CN
Henney, CJ
Koller, J
Toussaint, WA
Harvey, JW
Young, S
AF Arge, C. Nick
Henney, Carl J.
Koller, Josef
Toussaint, W. Alex
Harvey, John W.
Young, Shawn
BE Pogorelov, NV
Audit, E
Zank, GP
TI Improving Data Drivers for Coronal and Solar Wind Models
SO NUMERICAL MODELING OF SPACE PLASMA FLOWS - ASTRONUM 2010
SE Astronomical Society of the Pacific Conference Series
LA English
DT Proceedings Paper
CT 5th Annual International Conference on Numerical Modeling of Space
Plasma Flows (ASTRONUM 2010)
CY JUN 13-18, 2010
CL San Diego, CA
ID MAGNETIC-FIELDS; INTERPLANETARY; FLUX; CME
AB Global estimates of the solar photospheric magnetic field distribution are critical for space weather forecasting. These global maps are the essential data input for accurate modeling of the corona and solar wind, which is vital for gaining the basic understanding necessary to improve space weather forecasting models. We are now testing the global photospheric field maps generated by the Air Force Data Assimilative Photospheric flux Transport (ADAPT) model as input to the Wang-Sheeley-Arge (WSA) coronal and solar wind model. ADAPT incorporates data assimilation within a modified version of the Worden & Harvey photospheric magnetic flux transport model to provide an instantaneous snapshot of the global photospheric field distribution compared to that of traditional synoptic maps. In this paper we provide an overview of the WSA and ADAPT models, plus discuss preliminary results obtained from WSA when using a traditional versus an ADAPT photospheric field synoptic map as its input.
C1 [Arge, C. Nick; Henney, Carl J.; Young, Shawn] AFRL Space Vehicles Directorate, Kirtland AFB, NM USA.
[Koller, Josef] Los Alamos Natl Lab, Los Alamos, NM USA.
[Toussaint, W. Alex; Harvey, John W.] Natl Solar Oserv, Tucson, AZ USA.
RP Arge, CN (reprint author), AFRL Space Vehicles Directorate, Kirtland AFB, NM USA.
RI Koller, Josef/C-5591-2009; Young, Shawn/M-3601-2016
OI Koller, Josef/0000-0002-6770-4980; Young, Shawn/0000-0001-9592-8095
NR 19
TC 16
Z9 16
U1 0
U2 1
PU ASTRONOMICAL SOC PACIFIC
PI SAN FRANCISCO
PA 390 ASHTON AVE, SAN FRANCISCO, CA 94112 USA
BN 978-1-58381-768-1
J9 ASTR SOC P
PY 2011
VL 444
BP 99
EP +
PG 2
WC Astronomy & Astrophysics; Mathematics, Applied
SC Astronomy & Astrophysics; Mathematics
GA BAH66
UT WOS:000304180200016
ER
PT B
AU Gardiner, TA
AF Gardiner, Thomas A.
BE Pogorelov, NV
Audit, E
Zank, GP
TI High Lundquist Number Reconnection
SO NUMERICAL MODELING OF SPACE PLASMA FLOWS - ASTRONUM 2010
SE Astronomical Society of the Pacific Conference Series
LA English
DT Proceedings Paper
CT 5th Annual International Conference on Numerical Modeling of Space
Plasma Flows (ASTRONUM 2010)
CY JUN 13-18, 2010
CL San Diego, CA
ID UNSPLIT GODUNOV METHOD; CONSTRAINED TRANSPORT; IDEAL MHD
AB In recent years there has been a resurgence of interest in exploring the properties of resistive magnetic reconnection layers. This was spurred on by the observations that at high Lundquist number these systems depart from the traditional Sweet-Parker scaling, opening the possibility of so-called fast resistive magnetic reconnection. This proceedings presents my recent efforts at simulating resistive magnetic reconnection layers in high Lundquist number systems highlighting the numerical algorithms, simulation results and convergence behavior.
C1 Sandia Natl Labs, HEDP Theory, Albuquerque, NM 87185 USA.
RP Gardiner, TA (reprint author), Sandia Natl Labs, HEDP Theory, POB 5800, Albuquerque, NM 87185 USA.
NR 12
TC 0
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U1 0
U2 0
PU ASTRONOMICAL SOC PACIFIC
PI SAN FRANCISCO
PA 390 ASHTON AVE, SAN FRANCISCO, CA 94112 USA
BN 978-1-58381-768-1
J9 ASTR SOC P
PY 2011
VL 444
BP 191
EP 196
PG 6
WC Astronomy & Astrophysics; Mathematics, Applied
SC Astronomy & Astrophysics; Mathematics
GA BAH66
UT WOS:000304180200029
ER
PT B
AU Li, ST
AF Li, Shengtai
BE Pogorelov, NV
Audit, E
Zank, GP
TI Higher Order Divergence-Free Methods for Three-Dimensional MHD Flows on
Overlapping Grid
SO NUMERICAL MODELING OF SPACE PLASMA FLOWS - ASTRONUM 2010
SE Astronomical Society of the Pacific Conference Series
LA English
DT Proceedings Paper
CT 5th Annual International Conference on Numerical Modeling of Space
Plasma Flows (ASTRONUM 2010)
CY JUN 13-18, 2010
CL San Diego, CA
ID FINITE-VOLUME SCHEMES; CONSTRAINED TRANSPORT; IDEAL MHD; CELLS
AB We present a higher-order, divergence-free, central finite-volume method for three-dimensional magnetohydrodynamic (MHD) flows, which is an extension of the method described in [S. Li, High order central scheme on overlapping cells for MHD flows with and without constrained transport method, J. Comput. Phys. 227 (2008) 7368]. This method simultaneously advances the solutions on both original and dual overlapping grids, and can achieve any high order accuracy, depending on the order of the reconstructed polynomials. The dual overlapping grid also provides a natural way to calculate the electric field without spatial averaging for the constrained transport (CT) method, which preserves the divergence-free condition of the magnetic fields. In this paper, we describe basic components of our method implemented for 3D MHD flows. Several test problems are presented to demonstrate the accuracy and robustness of the algorithm. The high-order, low-dissipation, and divergence-free properties of this method make it an ideal tool for direct MHD turbulence simulations.
C1 Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Li, ST (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA.
NR 10
TC 0
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U1 0
U2 1
PU ASTRONOMICAL SOC PACIFIC
PI SAN FRANCISCO
PA 390 ASHTON AVE, SAN FRANCISCO, CA 94112 USA
BN 978-1-58381-768-1
J9 ASTR SOC P
PY 2011
VL 444
BP 242
EP 247
PG 6
WC Astronomy & Astrophysics; Mathematics, Applied
SC Astronomy & Astrophysics; Mathematics
GA BAH66
UT WOS:000304180200037
ER
PT B
AU Yee, HC
Sjogreen, B
Hadjadj, A
AF Yee, H. C.
Sjoegreen, B.
Hadjadj, A.
BE Pogorelov, NV
Audit, E
Zank, GP
TI LES of Temporally Evolving Mixing Layers by Three High Order Schemes
SO NUMERICAL MODELING OF SPACE PLASMA FLOWS - ASTRONUM 2010
SE Astronomical Society of the Pacific Conference Series
LA English
DT Proceedings Paper
CT 5th Annual International Conference on Numerical Modeling of Space
Plasma Flows (ASTRONUM 2010)
CY JUN 13-18, 2010
CL San Diego, CA
ID COMPRESSIBLE TURBULENCE; NUMERICAL DISSIPATION; DIRECT SIMULATION
AB The performance of three high order shock-capturing schemes is compared for large eddy simulations (LES) of temporally evolving mixing layers for different convective Mach number (M-e) ranging from the quasi-incompressible regime to highly compressible supersonic regime. The considered high order schemes are fifth-order WENO (WENO5), seventh-order WENO (WENO7), and the associated eighth-order central spatial base scheme with the dissipative portion of WENO7 as a nonlinear post-processing filter step (WENO7fi). This high order nonlinear filter method (Yee & Sjogreen 2009) is designed for accurate and efficient simulations of shock-free compressible turbulence, turbulence with shocklets and turbulence with strong shocks with minimum tuning of scheme parameters. The LES results by WENO7fi using the same scheme parameter agree well with experimental results of Barone et al. (2006), and published direct numerical simulations (DNS) by Rogers & Moser (1994) and Pantano & Sarkar (2002), whereas results by WENO5 and WENO7 compare poorly with experimental data and DNS computations.
C1 [Yee, H. C.] NASA, Ames Res Ctr, Moffett Field, CA 94035 USA.
[Sjoegreen, B.] Lawrence Livemore Natl Lab, Livermore, CA 94551 USA.
[Hadjadj, A.] CORIA, UMR 6614, INSA Rouen, F-76800 St Etienne, France.
RP Yee, HC (reprint author), NASA, Ames Res Ctr, Moffett Field, CA 94035 USA.
NR 27
TC 0
Z9 0
U1 0
U2 1
PU ASTRONOMICAL SOC PACIFIC
PI SAN FRANCISCO
PA 390 ASHTON AVE, SAN FRANCISCO, CA 94112 USA
BN 978-1-58381-768-1
J9 ASTR SOC P
PY 2011
VL 444
BP 266
EP +
PG 3
WC Astronomy & Astrophysics; Mathematics, Applied
SC Astronomy & Astrophysics; Mathematics
GA BAH66
UT WOS:000304180200041
ER
PT B
AU Howison, M
Bethel, EW
Childs, H
AF Howison, Mark
Bethel, E. Wes
Childs, Hank
BE Pogorelov, NV
Audit, E
Zank, GP
TI Hybrid Parallelism for Volume Rendering on Large, Multi-core Systems
SO NUMERICAL MODELING OF SPACE PLASMA FLOWS - ASTRONUM 2010
SE Astronomical Society of the Pacific Conference Series
LA English
DT Proceedings Paper
CT 5th Annual International Conference on Numerical Modeling of Space
Plasma Flows (ASTRONUM 2010)
CY JUN 13-18, 2010
CL San Diego, CA
AB This work studies the performance and scalability characteristics of "hybrid" parallel programming and execution as applied to raycasting volume rendering - a staple visualization algorithm - on a large, multi-core platform. Historically, the Message Passing Interface (MPI) has become the de-facto standard for parallel programming and execution on modern parallel systems. As the computing industry trends towards multi-core processors, with four- and six-core chips common today, as well as processors capable of running hundreds of concurrent threads (GPUs), we wish to better understand how algorithmic and parallel programming choices impact performance and scalability on large, distributed-memory multi-core systems. Our findings indicate that the hybrid-parallel implementation, at levels of concurrency ranging from 1,728 to 216,000, performs better, uses a smaller absolute memory footprint, and consumes less communication bandwidth than the traditional, MPI-only implementation.
C1 [Howison, Mark; Bethel, E. Wes; Childs, Hank] Lawrence Berkeley Natl Lab, Visualizat Grp, Berkeley, CA USA.
RP Howison, M (reprint author), Lawrence Berkeley Natl Lab, Visualizat Grp, Berkeley, CA USA.
EM mhowison@lbl.gov; ewbethel@lbl.gov; hchilds@lbl.gov
NR 7
TC 0
Z9 0
U1 1
U2 8
PU ASTRONOMICAL SOC PACIFIC
PI SAN FRANCISCO
PA 390 ASHTON AVE, SAN FRANCISCO, CA 94112 USA
BN 978-1-58381-768-1
J9 ASTR SOC P
PY 2011
VL 444
BP 275
EP 280
PG 6
WC Astronomy & Astrophysics; Mathematics, Applied
SC Astronomy & Astrophysics; Mathematics
GA BAH66
UT WOS:000304180200042
ER
PT B
AU Weber, GH
Bremer, PT
Gyulassy, A
Pascucci, V
AF Weber, Gunther H.
Bremer, Peer-Timo
Gyulassy, Attila
Pascucci, Valerio
BE Pogorelov, NV
Audit, E
Zank, GP
TI Topology-based Feature Definition and Analysis
SO NUMERICAL MODELING OF SPACE PLASMA FLOWS - ASTRONUM 2010
SE Astronomical Society of the Pacific Conference Series
LA English
DT Proceedings Paper
CT 5th Annual International Conference on Numerical Modeling of Space
Plasma Flows (ASTRONUM 2010)
CY JUN 13-18, 2010
CL San Diego, CA
AB Defining high-level features, detecting them, tracking them and deriving quantities based on them is an integral aspect of modern data analysis and visualization. In combustion simulations, for example, burning regions, which are characterized by high fuel-consumption, are a possible feature of interest. Detecting these regions makes it possible to derive statistics about their size and track them over time. However, features of interest in scientific simulations are extremely varied, making it challenging to develop cross-domain feature definitions. Topology-based techniques offer an extremely flexible means for general feature definitions and have proven useful in a variety of scientific domains. This paper will provide a brief introduction into topological structures like the contour tree and Morse-Smale complex and show how to apply them to define features in different science domains such as combustion. The overall goal is to provide an overview of these powerful techniques and start a discussion how these techniques can aid in the analysis of astrophysical simulations.
C1 [Weber, Gunther H.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Computat Res Div, 1 Cyclotron Rd, Berkeley, CA 94720 USA.
[Bremer, Peer-Timo] Lawrence Livermore Natl Lab, Ctr Appl Sci Comp, Livermore, CA 94551 USA.
[Gyulassy, Attila; Pascucci, Valerio] Univ Utah, Sci Comp & Imaging Inst, Salt Lake City, UT 84112 USA.
RP Weber, GH (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Computat Res Div, 1 Cyclotron Rd, Berkeley, CA 94720 USA.
FU Office of Advanced Scientific Computing Research, Office of Science, of
the U.S. Department of Energy [DE-AC02-05CH11231]
FX This work was supported by the Director, Office of Advanced Scientific
Computing Research, Office of Science, of the U.S. Department of Energy
under Contract No, DE-AC02-05CH11231 through the Scientific Discovery
through Advanced Computing (SciDAC) program's Visualization and
Analytics Center for Enabling Technologies (VACET).
NR 28
TC 0
Z9 0
U1 0
U2 1
PU ASTRONOMICAL SOC PACIFIC
PI SAN FRANCISCO
PA 390 ASHTON AVE, SAN FRANCISCO, CA 94112 USA
BN 978-1-58381-768-1
J9 ASTR SOC P
PY 2011
VL 444
BP 292
EP +
PG 3
WC Astronomy & Astrophysics; Mathematics, Applied
SC Astronomy & Astrophysics; Mathematics
GA BAH66
UT WOS:000304180200044
ER
PT J
AU Turitsyn, K
Backhaus, S
Ananyev, M
Chertkov, M
AF Turitsyn, Konstantin
Backhaus, Scott
Ananyev, Maxim
Chertkov, Michael
GP IEEE
TI Smart Finite State Devices: A Modeling Framework for Demand Response
Technologies
SO 2011 50TH IEEE CONFERENCE ON DECISION AND CONTROL AND EUROPEAN CONTROL
CONFERENCE (CDC-ECC)
LA English
DT Proceedings Paper
CT 50th IEEE Conference of Decision and Control (CDC)/European Control
Conference (ECC)
CY DEC 12-15, 2011
CL Orlando, FL
SP Honeywell, MathWorks, United Technol Res Ctr, HYCON2, IEEE, Contrl Syst Soc (CSS), EUCA
AB We introduce and analyze Markov Decision Process (MDP) machines to model individual devices which are expected to participate in future demand-response markets on distribution grids. We differentiate devices into the following four types: (a) optional loads that can be shed, e. g. light dimming; (b) deferrable loads that can be delayed, e. g. dishwashers; (c) controllable loads with inertia, e. g. thermostatically-controlled loads, whose task is to maintain an auxiliary characteristic (temperature) within pre-defined margins; and (d) storage devices that can alternate between charging and generating. Our analysis of the devices seeks to find their optimal price-taking control strategy under a given stochastic model of the distribution market.
C1 [Turitsyn, Konstantin] MIT, 77 Massachusetts Ave, Cambridge, MA 02139 USA.
[Backhaus, Scott] LANL, MPA Div, Los Alamos, NM 87545 USA.
[Ananyev, Maxim] New Econ Sch, Moscow, Russia.
[Chertkov, Michael] LANL, Ctr Nonlinear Studies, Los Alamos, NM 87545 USA.
[Chertkov, Michael] LANL, Theory Div, Los Alamos, NM 87545 USA.
RP Turitsyn, K (reprint author), MIT, 77 Massachusetts Ave, Cambridge, MA 02139 USA.
EM turitsyn@mit.edu; backhaus@lanl.gov; maksim.ananjev@gmail.com;
chertkov@lanl.gov
RI Backhaus, Scott/F-4285-2012; Turitsyn, Konstantin/K-5978-2012; Chertkov,
Michael/O-8828-2015
OI Turitsyn, Konstantin/0000-0002-7997-8962;
FU U.S. Department of Energy at Los Alamos National Laboratory
[DE-AC52-06NA25396]
FX The work of MC at LANL was carried out under the auspices of the
National Nuclear Security Administration of the U.S. Department of
Energy at Los Alamos National Laboratory under Contract No.
DE-AC52-06NA25396
NR 15
TC 8
Z9 8
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-61284-801-3
PY 2011
BP 7
EP 14
PG 8
WC Automation & Control Systems
SC Automation & Control Systems
GA BAA55
UT WOS:000303506200002
ER
PT J
AU Kalsi, K
Chassin, F
Chassin, D
AF Kalsi, Karanjit
Chassin, Forrest
Chassin, David
GP IEEE
TI Aggregated Modeling of Thermostatic Loads in Demand Response: A Systems
and Control Perspective
SO 2011 50TH IEEE CONFERENCE ON DECISION AND CONTROL AND EUROPEAN CONTROL
CONFERENCE (CDC-ECC)
LA English
DT Proceedings Paper
CT 50th IEEE Conference of Decision and Control (CDC)/European Control
Conference (ECC)
CY DEC 12-15, 2011
CL Orlando, FL
SP Honeywell, MathWorks, United Technol Res Ctr, HYCON2, IEEE, Contrl Syst Soc (CSS), EUCA
AB Demand response is playing an increasingly important role in smart grid research and technologies being examined in recently undertaken demonstration projects. The behavior of load as it is affected by various load control strategies is important to understanding the degree to which different classes of end-use load can contribute to demand response programs at various times. This paper focuses on developing aggregated control models for a homogeneous population of thermostatically controlled loads. The different types of loads considered in this paper include, but are not limited to, water heaters and HVAC units. The effects of demand response and user over-ride on the load population dynamics are investigated. The controllability of the developed lumped models is validated which forms the basis for designing different control strategies.
C1 [Kalsi, Karanjit; Chassin, Forrest; Chassin, David] Pacific NW Natl Lab, Richland, WA 99354 USA.
RP Kalsi, K (reprint author), Pacific NW Natl Lab, Richland, WA 99354 USA.
NR 10
TC 5
Z9 5
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-61284-801-3
PY 2011
BP 15
EP 20
PG 6
WC Automation & Control Systems
SC Automation & Control Systems
GA BAA55
UT WOS:000303506200003
ER
PT J
AU Chertkov, M
Stepanov, M
Pan, F
Baldick, R
AF Chertkov, Michael
Stepanov, Mikhail
Pan, Feng
Baldick, Ross
GP IEEE
TI Exact and Efficient Algorithm to Discover Extreme Stochastic Events in
Wind Generation over Transmission Power Grids
SO 2011 50TH IEEE CONFERENCE ON DECISION AND CONTROL AND EUROPEAN CONTROL
CONFERENCE (CDC-ECC)
LA English
DT Proceedings Paper
CT 50th IEEE Conference of Decision and Control (CDC)/European Control
Conference (ECC)
CY DEC 12-15, 2011
CL Orlando, FL
SP Honeywell, MathWorks, United Technol Res Ctr, HYCON2, IEEE, Contrl Syst Soc (CSS), EUCA
ID SYSTEMS
AB In this manuscript we continue the thread of [M. Chertkov, F. Pan, M. Stepanov, Predicting Failures in Power Grids: The Case of Static Overloads, IEEE Smart Grid 2011] and suggest a new algorithm discovering most probable extreme stochastic events in static power grids associated with intermittent generation of wind turbines. The algorithm becomes EXACT and EFFICIENT (polynomial) in the case of the proportional (or other low parametric) control of standard generation, and log-concave probability distribution of the renewable generation, assumed known from the wind forecast. We illustrate the algorithm's ability to discover problematic extreme events on the example of the IEEE RTS-96 model of transmission with additions of 10%; 20% and 30% of renewable generation. We observe that the probability of failure may grow but it may also decrease with increase in renewable penetration, if the latter is sufficiently diversified and distributed.
C1 [Chertkov, Michael] LANL, Div Theory & Ctr Nonlinear Studies, Los Alamos, NM 87545 USA.
[Stepanov, Mikhail] Univ Arizona, Dept Math, Tucson, AZ 85721 USA.
[Pan, Feng] Decis Div LANL, Los Alamos, NM 87545 USA.
[Baldick, Ross] Univ Texas Austin, Dept Elect & Comp Engn Engn, Austin, TX 78712 USA.
RP Chertkov, M (reprint author), LANL, Div Theory & Ctr Nonlinear Studies, Los Alamos, NM 87545 USA.
EM chertkov@lanl.gov; stepanov@math.arizona.edu; fpan@lanl.gov;
baldick@ece.utexas.edu
RI Chertkov, Michael/O-8828-2015
FU U.S. Department of Energy [DEAC52-06NA25396]; DTRA/DOD
[BRCALL06-Per3-D-2-0022]; NSF [DMS-0807592]; Department of Energy
[09EE0001385]
FX The work of MC and FP at LANL was carried out under the auspices of the
National Nuclear Security Administration of the U.S. Department of
Energy at Los Alamos National Laboratory under Contract No.
DEAC52-06NA25396. The work of MC, MS and FP was funded in part by
DTRA/DOD under the grant BRCALL06-Per3-D-2-0022 on Network Adaptability
from WMD Disruption and Cascading Failures. The work of MS is also
partially supported by NSF grant DMS-0807592. RB is funded, in part, by
the Department of Energy under Contract 09EE0001385.
NR 27
TC 6
Z9 6
U1 0
U2 2
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-61284-801-3
PY 2011
BP 2174
EP 2180
PG 7
WC Automation & Control Systems
SC Automation & Control Systems
GA BAA55
UT WOS:000303506202127
ER
PT J
AU Mathieu, JL
Callaway, DS
Kiliccote, S
AF Mathieu, Johanna L.
Callaway, Duncan S.
Kiliccote, Sila
GP IEEE
TI Examining Uncertainty in Demand Response Baseline Models and Variability
in Automated Responses to Dynamic Pricing
SO 2011 50TH IEEE CONFERENCE ON DECISION AND CONTROL AND EUROPEAN CONTROL
CONFERENCE (CDC-ECC)
LA English
DT Proceedings Paper
CT 50th IEEE Conference of Decision and Control (CDC)/European Control
Conference (ECC)
CY DEC 12-15, 2011
CL Orlando, FL
SP Honeywell, MathWorks, United Technol Res Ctr, HYCON2, IEEE, Contrl Syst Soc (CSS), EUCA
ID RETROFIT SAVINGS
AB Controlling electric loads to deliver power system services presents a number of interesting challenges. For example, changes in electricity consumption of Commercial and Industrial (C&I) facilities are usually estimated using counterfactual baseline models, and model uncertainty makes it difficult to precisely quantify control responsiveness. Moreover, C&I facilities exhibit variability in their response. This paper seeks to understand baseline model error and demand-side variability in responses to open-loop control signals (i.e. dynamic prices). Using a regression-based baseline model, we define several Demand Response (DR) parameters, which characterize changes in electricity use on DR days, and then present a method for computing the error associated with DR parameter estimates. In addition to analyzing the magnitude of DR parameter error, we develop a metric to determine how much observed DR parameter variability is attributable to real event-to-event variability versus simply baseline model error. Using data from 38 C&I facilities that participated in an automated DR program in California, we find that DR parameter errors are large. For most facilities, observed DR parameter variability is likely explained by baseline model error, not real DR parameter variability; however, a number of facilities exhibit real DR parameter variability. In some cases, the aggregate population of C&I facilities exhibits real DR parameter variability, resulting in implications for the system operator with respect to both resource planning and system stability.
C1 [Mathieu, Johanna L.] Univ Calif Berkeley, Dept Mech Engn, 4th Floor Collaboratory,Sutardja Dai Hall,MC 1740, Berkeley, CA 94720 USA.
[Callaway, Duncan S.] Univ Calif Berkeley, Energy & Resources Grp, Berkeley, CA 94720 USA.
[Kiliccote, Sila] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Environm Energy Technol Div, Berkeley, CA 94720 USA.
RP Mathieu, JL (reprint author), Univ Calif Berkeley, Dept Mech Engn, 4th Floor Collaboratory,Sutardja Dai Hall,MC 1740, Berkeley, CA 94720 USA.
EM jmathieu@berkeley.edu; dcal@berkeley.edu; skiliccote@lbl.gov
FU California Energy Commission (CEC) [500-03-026]
FX We thank Phillip Price, Mary Ann Piette, and Ashok Gadgil for great
advice and feedback. We also thank PG&E Company for the electric load
data. Johanna Mathieu was funded by a UC Berkeley Chancellors
Fellowship. Some of this work was conducted at the Lawrence Berkeley
National Laboratory under U.S. Department of Energy Contract No.
DE-AC02-05CH11231. Sila Kiliccote was funded by the California Energy
Commission (CEC) under Contract No. 500-03-026.
NR 14
TC 13
Z9 15
U1 0
U2 3
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-61284-801-3
PY 2011
BP 4332
EP 4339
PG 8
WC Automation & Control Systems
SC Automation & Control Systems
GA BAA55
UT WOS:000303506204153
ER
PT J
AU Kiliccote, S
Piette, MA
Koch, E
Hennage, D
AF Kiliccote, Sila
Piette, Mary Ann
Koch, Edward
Hennage, Dan
GP IEEE
TI Utilizing Automated Demand Response in Commercial Buildings as
Non-Spinning Reserve Product for Ancillary Services Markets
SO 2011 50TH IEEE CONFERENCE ON DECISION AND CONTROL AND EUROPEAN CONTROL
CONFERENCE (CDC-ECC)
LA English
DT Proceedings Paper
CT 50th IEEE Conference of Decision and Control (CDC)/European Control
Conference (ECC)
CY DEC 12-15, 2011
CL Orlando, FL
SP Honeywell, MathWorks, United Technol Res Ctr, HYCON2, IEEE, Contrl Syst Soc (CSS), EUCA
AB In 2009, a pilot program was conducted to investigate the technical feasibility of bidding nonresidential demand response (DR) resources into the California Independent System Operator's (CAISO) day-ahead ancillary services market as non-spinning reserves product. Three facilities, a retail store, a local government office building, and a bakery, were recruited into the pilot program and moved from automated price responsive programs to CAISO's participating load program. For each facility, hourly demand, and load curtailment potential were forecasted two days ahead and submitted to the CAISO the day before the trading day as an available resource. These DR resources were optimized against all other generation resources in the CAISO ancillary services market. Each facility was equipped with four-second real time telemetry equipment to ensure resource accountability and visibility to CAISO operators. When CAISO requests DR resources, OpenADR (Open Automated DR) communications infrastructure was utilized to deliver DR signals to the facilities' energy management and control systems. The pre-programmed DR strategies were triggered without a human in the loop. This paper describes the automated system architecture with detailed description of meter feedback in the DR signaling to maintain demand reduction at the government office building. The results showed that OpenADR infrastructure could be used for some products for the ancillary services market and DR strategies for heating ventilation and air conditioning and lighting provide fast enough response to participate in non-spinning reserve product in the ancillary services market.
C1 [Kiliccote, Sila; Piette, Mary Ann] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Demand Response Res Ctr, Energy & Environm Technol Div, Berkeley, CA 94720 USA.
RP Kiliccote, S (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Demand Response Res Ctr, Energy & Environm Technol Div, 1 Cyclotron Rd,MS 90-3111, Berkeley, CA 94720 USA.
EM skiliccote@lbl.gov; mapiette@lbl.gov; ed@akuacom.com; dan@akuacom.com
NR 9
TC 12
Z9 14
U1 0
U2 2
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-61284-801-3
PY 2011
BP 4354
EP 4360
PG 7
WC Automation & Control Systems
SC Automation & Control Systems
GA BAA55
UT WOS:000303506204156
ER
PT J
AU Wei, YN
Ullah, G
Parekh, R
Ziburkus, J
Schiff, SJ
AF Wei, Yina
Ullah, Ghanim
Parekh, Ruchi
Ziburkus, Jokubas
Schiff, Steven J.
GP IEEE
TI Kalman Filter Tracking of Intracellular Neuronal Voltage and Current
SO 2011 50TH IEEE CONFERENCE ON DECISION AND CONTROL AND EUROPEAN CONTROL
CONFERENCE (CDC-ECC)
LA English
DT Proceedings Paper
CT 50th IEEE Conference of Decision and Control (CDC)/European Control
Conference (ECC)
CY DEC 12-15, 2011
CL Orlando, FL
SP Honeywell, MathWorks, United Technol Res Ctr, HYCON2, IEEE, Contrl Syst Soc (CSS), EUCA
ID HIPPOCAMPUS; DYNAMICS; SYSTEM
AB The nervous system encodes and processes information with the activities of neurons. The response of a single neuron is complex and depends on the interactions between its previous state, its intrinsic properties, and the stimuli it receives. Experimentally, we utilize the patch clamp technique to monitor neural membrane voltages, but the underlying stimuli, including the external current or synaptic current from other neurons, cannot be fully observed. In this paper, we used computational models as an alternative to tackle these challenges. We employed an ensemble Kalman filter to reconstruct unobserved intracellular variables and parameters only from measured membrane potentials in a CA1 pyramidal neuron model that follows Hodgkin-Huxley dynamics. We found that the tracking of intracellular neuronal voltage and current was close to their true values whether the observations are from model generated data or real experimental data. In addition, we retrieved the experimentally inaccessible dynamics of the neuron, such as the changes of sodium and potassium gating variables, which helps to understand their roles in generating action potentials. Our study provides a powerful framework for observing dynamics underlying neural activity and seeking better real-time neuronal control.
C1 [Wei, Yina; Parekh, Ruchi; Schiff, Steven J.] Penn State Univ, Dept Engn Sci & Mech, Ctr Neural Engn, 227 Hammond Bldg, University Pk, PA 16802 USA.
[Ullah, Ghanim] Los Alamos Natl Lab, Theoret Biol & Biophys, Los Alamos, NM 87545 USA.
[Ziburkus, Jokubas] Univ Houston, Dept Biol & Biochem, Houston, TX 77204 USA.
RP Wei, YN (reprint author), Penn State Univ, Dept Engn Sci & Mech, Ctr Neural Engn, 227 Hammond Bldg, University Pk, PA 16802 USA.
EM yxw170@psu.edu; gullah@lanl.gov; ruchisparekh@gmail.com;
jziburkus@uh.edu; sschiff@psu.edu
OI Ziburkus, Jokubas/0000-0002-1701-4367
FU NIH [R01MH50006, K02MH01493]; endowment funds of Harvey F. Brush
FX This work was in part supported by NIH Grants R01MH50006 and K02MH01493,
and the endowment funds of Harvey F. Brush.
NR 26
TC 1
Z9 1
U1 1
U2 3
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-61284-801-3
PY 2011
BP 5844
EP 5849
PG 6
WC Automation & Control Systems
SC Automation & Control Systems
GA BAA55
UT WOS:000303506206076
ER
PT J
AU Malikopoulos, AA
AF Malikopoulos, Andreas A.
GP IEEE
TI Equilibrium Control Policies for Markov Chains
SO 2011 50TH IEEE CONFERENCE ON DECISION AND CONTROL AND EUROPEAN CONTROL
CONFERENCE (CDC-ECC)
LA English
DT Proceedings Paper
CT 50th IEEE Conference of Decision and Control (CDC)/European Control
Conference (ECC)
CY DEC 12-15, 2011
CL Orlando, FL
SP Honeywell, MathWorks, United Technol Res Ctr, HYCON2, IEEE, Contrl Syst Soc (CSS), EUCA
ID AVERAGE COST CRITERION; DECISION-PROCESSES; OPTIMALITY
AB The average cost criterion has held great intuitive appeal and has attracted considerable attention. It is widely employed when controlling dynamic systems that evolve stochastically over time by means of formulating an optimization problem to achieve long-term goals efficiently. The average cost criterion is especially appealing when the decision-making process is long compared to other timescales involved, and there is no compelling motivation to select short-term optimization. This paper addresses the problem of controlling a Markov chain so as to minimize the average cost per unit time. Our approach treats the problem as a dual constrained optimization problem. We derive conditions guaranteeing that a saddle point exists for the new dual problem and we show that this saddle point is an equilibrium control policy for each state of the Markov chain. For practical situations with constraints consistent to those we study here, our results imply that recognition of such saddle points may be of value in deriving in real time an optimal control policy.
C1 Oak Ridge Natl Lab, Energy & Transportat Sci Div, Oak Ridge, TN 37831 USA.
RP Malikopoulos, AA (reprint author), Oak Ridge Natl Lab, Energy & Transportat Sci Div, POB 2008, Oak Ridge, TN 37831 USA.
EM andreas@ornl.gov
NR 34
TC 1
Z9 1
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-61284-801-3
PY 2011
BP 7093
EP 7098
PG 6
WC Automation & Control Systems
SC Automation & Control Systems
GA BAA55
UT WOS:000303506207118
ER
PT B
AU Passy, JC
De Marco, O
Fryer, CL
Herwig, F
Diehl, S
Oishi, JS
Mac Low, MM
Bryan, GL
Rockefeller, G
AF Passy, Jean-Claude
De Marco, Orsola
Fryer, Chris L.
Herwig, Falk
Diehl, Steven
Oishi, Jeffrey S.
Mac Low, Mordecai-Mark
Bryan, Greg L.
Rockefeller, Gabriel
BE Schmidtobreick, L
Schreiber, MR
Tappert, C
TI Simulations of the Common Envelope Interaction Between a Red Giant
Branch Star and Low-Mass Companions
SO EVOLUTION OF COMPACT BINARIES
SE Astronomical Society of the Pacific Conference Series
LA English
DT Proceedings Paper
CT Workshop on the Evolution of Compact Binary Stars
CY MAY 06-11, 2011
CL Vina del Mar, CHILE
ID HYDRODYNAMICS; EVOLUTION; ORIGIN; CODE
AB We present three-dimensional hydrodynamical simulations of the fast inspiral phase of the common envelope interaction between a red giant star and a range of companions with different masses. In order to verify the reliability of the numerics we use two different approaches. The code-to-code comparison shows consistent results. We then compare the outcomes of our simulations to post common envelope systems. At the end of the simulations, most of the envelope of the progenitor is still bound to the system and the orbital separations are systematically larger than those observed. We explain what the reasons for this discrepancy might be and how we will proceed with our investigation.
C1 [Passy, Jean-Claude; Mac Low, Mordecai-Mark] Amer Museum Nat Hist, Dept Astrophys, Cent Pk W & 79th St, New York, NY 10024 USA.
[Passy, Jean-Claude; Herwig, Falk] Univ Victoria, Dept Phys & Astron, Victoria, BC V8P5C2, Canada.
[De Marco, Orsola] Macquarie Univ, Dept Phys & Astron, Sydney, NSW 2109, Australia.
[Fryer, Chris L.; Diehl, Steven; Rockefeller, Gabriel] Los Alamos Natl Lab, CCS Div, Los Alamos, NM 87545 USA.
[Oishi, Jeffrey S.] Stanford Univ, Kavali Inst Particle Astrophys & Cosmol, Menlo Pk, CA 94025 USA.
[Bryan, Greg L.] Columbia Univ, Dept Astron, New York, NY 10027 USA.
RP Passy, JC (reprint author), Amer Museum Nat Hist, Dept Astrophys, Cent Pk W & 79th St, New York, NY 10024 USA.
RI Rockefeller, Gabriel/G-2920-2010
OI Rockefeller, Gabriel/0000-0002-9029-5097
NR 18
TC 3
Z9 3
U1 0
U2 1
PU ASTRONOMICAL SOC PACIFIC
PI SAN FRANCISCO
PA 390 ASHTON AVE, SAN FRANCISCO, CA 94112 USA
BN 978-1-58381-774-2
J9 ASTR SOC P
PY 2011
VL 447
BP 107
EP +
PG 2
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA BAG94
UT WOS:000304125600012
ER
PT B
AU Linden, T
Kalogera, V
Sepinsky, J
Prestwich, A
Zezas, A
Gallagher, J
AF Linden, Tim
Kalogera, Vicky
Sepinsky, Jeremy
Prestwich, Andrea
Zezas, Andreas
Gallagher, Jay
BE Schmidtobreick, L
Schreiber, MR
Tappert, C
TI The Effect of Common Envelope Evolution on the Formation of High Mass
X-Ray Binaries
SO EVOLUTION OF COMPACT BINARIES
SE Astronomical Society of the Pacific Conference Series
LA English
DT Proceedings Paper
CT Workshop on the Evolution of Compact Binary Stars
CY MAY 06-11, 2011
CL Vina del Mar, CHILE
ID STELLAR EVOLUTION; BLACK-HOLE; GALAXIES; METALLICITY; POPULATION; MODELS
AB Common Envelope (CE) phases serve a critical role in the creation of high mass X-Ray binaries (HMXBs) as the primary force which moves initially loosely bound binary companions into tight orbits capable of supporting efficient material transport onto the compact object. We investigate the impact of CE phases on young (< 20 Myr) and bright (L-x < 1 x 10(36) erg s(-1)) X-ray binaries, finding CE evolution to produce a robust population of HMXBs with luminosities powered by Roche lobe overflow onto black hole accretors. We find that HMXBs formed through CE evolution match the observed luminosity and spatial distribution and metallicity dependence of the peculiar high luminosity extension of HMXBs known as the ultra-luminous X-ray sources (ULX).
C1 [Linden, Tim] Univ Calif Santa Cruz, Dept Phys, 1156 High St, Santa Cruz, CA 95064 USA.
[Linden, Tim] Fermilab Natl Accelerator Lab, Ctr Part Astrophys, Batavia, IL 60510 USA.
[Kalogera, Vicky] Northwestern Univ, CIERA, Dept Phys & Astron, Evanston, IL 60208 USA.
[Sepinsky, Jeremy] Univ Scranton, Dept Phys & Elect Engn, Scranton, PA 18510 USA.
[Prestwich, Andrea; Zezas, Andreas] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA.
[Gallagher, Jay] Univ Wisconsin, Dept Astron, Madison, WI 53706 USA.
RP Linden, T (reprint author), Univ Calif Santa Cruz, Dept Phys, 1156 High St, Santa Cruz, CA 95064 USA.
FU NSF [AST-0449558]; NASA [GO0-11108B/NAS8-03060]
FX We acknowledge suport from NSF grant AST-0449558 and NASA
GO0-11108B/NAS8-03060 to VK.
NR 26
TC 0
Z9 0
U1 0
U2 1
PU ASTRONOMICAL SOC PACIFIC
PI SAN FRANCISCO
PA 390 ASHTON AVE, SAN FRANCISCO, CA 94112 USA
BN 978-1-58381-774-2
J9 ASTR SOC P
PY 2011
VL 447
BP 121
EP +
PG 2
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA BAG94
UT WOS:000304125600015
ER
PT S
AU Lipnikov, K
Manzini, G
Svyatskiy, D
AF Lipnikov, Konstantin
Manzini, Gianmarco
Svyatskiy, Daniil
BE Fort, J
Furst, J
Halama, J
Herbin, R
Hubert, F
TI Monotonicity Conditions in the Mimetic Finite Difference Method
SO FINITE VOLUMES FOR COMPLEX APPLICATIONS VI: PROBLEMS & PERSPECTIVES,
VOLS 1 AND 2
SE Springer Proceedings in Mathematics
LA English
DT Proceedings Paper
CT 6th International Symposium on Finite Volumes for Complex Applications
CY JUN 06-10, 2011
CL Prague, CZECH REPUBLIC
SP CMLA ENS Cachan, IFP Energies Nouvelles, IRSN, LATP Univ Aix Marseille I, MOMAS Grp, Univ Paris XIII, Univ Paris Est Marne Vallee, Univ Pierre & Marie Curie
DE Mimetic method; discrete maximum principle; M-matrix
AB The maximum principle is a major property of solutions of partial differential equations. In this work, we analyze a few constructive algorithms that allow one to embed this property into a mimetic finite difference (MFD) method. The algorithms search in the parametric family of MFD methods for a member that guarantees the discrete maximum principle (DMP). A set of sufficient conditions for the DMP is derived for a few types of meshes. For general meshes, a numerical optimization procedure is proposed and studied numerically.
C1 [Lipnikov, Konstantin; Svyatskiy, Daniil] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Manzini, Gianmarco] IMATI CNR, CESNA IUSS, Pavia, Italy.
RP Lipnikov, K (reprint author), Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
EM lipnikov@lanl.gov; marco.manzini@imati.cnr.it; dasvyat@lanl.gov
OI Manzini, Gianmarco/0000-0003-3626-3112
FU Department of Energy (DOE) Advanced Scientific Computing Research (ASCR)
program in Applied Mathematics; Italian MIUR [PRIN2008]
FX The work of the first (K.L.) and third author (D.S.) was supported by
the Department of Energy (DOE) Advanced Scientific Computing Research
(ASCR) program in Applied Mathematics. The work of the second author
(G.M.) was partially supported by the Italian MIUR through the program
PRIN2008.
NR 5
TC 7
Z9 7
U1 0
U2 1
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
SN 2190-5614
BN 978-3-642-20671-9; 978-3-642-20670-2
J9 SPRINGER PROC MATH
PY 2011
VL 4
BP 653
EP +
DI 10.1007/978-3-642-20671-9_69
PG 2
WC Mathematics, Applied
SC Mathematics
GA BAC27
UT WOS:000303780800069
ER
PT S
AU Lipnikov, K
Manzini, G
AF Lipnikov, Konstantin
Manzini, Gianmarco
BE Fort, J
Furst, J
Halama, J
Herbin, R
Hubert, F
TI Benchmark 3D: Mimetic Finite Difference Method for Generalized
Polyhedral Meshes
SO FINITE VOLUMES FOR COMPLEX APPLICATIONS VI: PROBLEMS & PERSPECTIVES,
VOLS 1 AND 2
SE Springer Proceedings in Mathematics
LA English
DT Proceedings Paper
CT 6th International Symposium on Finite Volumes for Complex Applications
CY JUN 06-10, 2011
CL Prague, CZECH REPUBLIC
SP CMLA ENS Cachan, IFP Energies Nouvelles, IRSN, LATP Univ Aix Marseille I, MOMAS Grp, Univ Paris XIII, Univ Paris Est Marne Vallee, Univ Pierre & Marie Curie
ID DIFFUSION-PROBLEMS
C1 [Lipnikov, Konstantin] Los Alamos Natl Lab, Div Theoret, MS B284, Los Alamos, NM 87545 USA.
[Manzini, Gianmarco] IMATI CNR, Pavia, Italy.
[Manzini, Gianmarco] CESNA IUSS, Pavia, Italy.
RP Lipnikov, K (reprint author), Los Alamos Natl Lab, Div Theoret, MS B284, Los Alamos, NM 87545 USA.
EM lipnikov@lanl.gov; marco.manzini@imati.cnr.it
OI Manzini, Gianmarco/0000-0003-3626-3112
NR 2
TC 0
Z9 0
U1 0
U2 0
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
SN 2190-5614
BN 978-3-642-20671-9; 978-3-642-20670-2
J9 SPRINGER PROC MATH
PY 2011
VL 4
BP 1035
EP +
DI 10.1007/978-3-642-20671-9_101
PG 2
WC Mathematics, Applied
SC Mathematics
GA BAC27
UT WOS:000303780800101
ER
PT S
AU Reu, PL
AF Reu, Phillip L.
BE Burguete, RL
Lucas, M
Patterson, EA
Quinn, S
TI High/Ultra-high speed imaging as a diagnostic tool
SO ADVANCES IN EXPERIMENTAL MECHANICS VIII
SE Applied Mechanics and Materials
LA English
DT Proceedings Paper
CT 8th International Conference on Advances in Experimental Mechanics:
Integrating Simulation and Experimentation for Validation
CY SEP 07-09, 2011
CL Edinburgh, SCOTLAND
SP Airbus, AMEC Power and Process Europe, AWE, Doosan Babcock, GOM, Imetrum, LA Vision, Photron, Stresstech Grp, Asian Soc Expt Mech, Assoc Francaise Mecan, Canadian Soc Mech Engn, Engn Integr Soc, Forum APPL Mech, Brit Inst Nondestruct Text, European Assoc Expt Mech, UK Forum Engn Struct Integr, German Soc Expt Stress Anal, Inst Mech Engn, Inst Phys, Appl Mech Grp, Japanese Soc Expt Mech, NAFEMS, Italian Assoc Stress Anal
DE DIC; high speed imaging; ultra-high speed imaging
ID INTENSITY PATTERN NOISE
AB The ability to see what is happening during an experiment is often critical to human understanding. High and ultra-high speed cameras have for decades allowed scientists to see these extremely short time-scale events; starting with film cameras and now with digital versions of these cameras. The move to digital cameras has invited the use of computer analysis of the images for obtaining quantitative information well beyond the qualitative usefulness of merely being able to see the event. Digital image correlation (DIC) is one of these powerful and popular quantitative techniques, but by no means the only possible image analysis method. All of these analysis techniques ask more of the camera technology than simply providing images. They require high-quality images that are amenable to analysis and do not introduce error sources that compromise the data. Possible error sources include image noise, image distortions, synchronization and spatial sampling issues. As a minimal starting point, the introduced errors must be well understood in order to put error bounds on the results. This is because in many experiments some result is better than no result; with the caveat that the error sources and the relative confidence of the data are understood. The concepts will be framed in relation to ongoing ultra-high speed work being done at Sandia. A call and challenge will be given to begin thinking in more detail about how to successfully turn these cameras into diagnostic instruments.
C1 Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Reu, PL (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
EM plreu@sandia.gov
NR 6
TC 0
Z9 0
U1 1
U2 3
PU TRANS TECH PUBLICATIONS LTD
PI STAFA-ZURICH
PA LAUBLSRUTISTR 24, CH-8717 STAFA-ZURICH, SWITZERLAND
SN 1660-9336
BN 978-3-03785-202-6
J9 APPL MECH MATER
PY 2011
VL 70
BP 69
EP 74
DI 10.4028/www.scientific.net/AMM.70.69
PG 6
WC Materials Science, Multidisciplinary; Mechanics
SC Materials Science; Mechanics
GA BZY45
UT WOS:000303372700010
ER
PT S
AU Albrow, M
AF Albrow, Michael
BE Capua, M
Fiore, R
Ivanov, I
Papa, A
Soffer, J
Tassi, E
TI Double Pomeron Exchange: from the ISR to the LHC
SO DIFFRACTION 2010: INTERNATIONAL WORKSHOP ON DIFFRACTION IN HIGH ENERGY
PHYSICS
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT International Workshop on Diffraction in High Energy Physics
(DIFFRACTION)
CY SEP 10-15, 2010
CL Otranto, ITALY
SP Univ della Calabria, Istituto Nazionale Fisica Nucleare (INFN), Temple Univ, CERN, DESY, Provincia Lecce, Univ Calabria, Phys Dept
DE Diffraction; Two-photon; Photoproduction; Double pomeron
ID HADRON COLLIDERS; HIGGS
AB I discuss Double Pomeron Exchange processes from their first observation at the CERN Intersecting Storage Rings, focusing on glueball searches, through the observations of exclusive chi(c0), gamma gamma and di-jets at the Tevatron, to prospects at the LHC for exclusive Higgs boson production.
C1 Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
RP Albrow, M (reprint author), Fermilab Natl Accelerator Lab, POB 500,Wilson Rd, Batavia, IL 60510 USA.
NR 24
TC 1
Z9 1
U1 0
U2 0
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0907-1
J9 AIP CONF PROC
PY 2011
VL 1350
DI 10.1063/1.3601389
PG 5
WC Physics, Particles & Fields
SC Physics
GA BZT92
UT WOS:000302953000023
ER
PT S
AU Chirilli, GA
AF Chirilli, Giovanni A.
BE Capua, M
Fiore, R
Ivanov, I
Papa, A
Soffer, J
Tassi, E
TI The Photon Impact Factor for DIS at NLO: analytic result
SO DIFFRACTION 2010: INTERNATIONAL WORKSHOP ON DIFFRACTION IN HIGH ENERGY
PHYSICS
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT International Workshop on Diffraction in High Energy Physics
(DIFFRACTION)
CY SEP 10-15, 2010
CL Otranto, ITALY
SP Univ della Calabria, Istituto Nazionale Fisica Nucleare (INFN), Temple Univ, CERN, DESY, Provincia Lecce, Univ Calabria, Phys Dept
DE High energy; Conformal invariance; Wilson lines
ID OPERATOR EXPANSION; BFKL POMERON; SMALL-X; QCD; EVOLUTION; SATURATION;
SCATTERING; BEHAVIOR
AB Using the Operator Product Expansion for high-energy scattering processes, we compute the photon impact factor at next-to-leading order accuracy. We obtain an analytic expression as a linear combination of five independent conformal tensor structures.
C1 Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Nucl Sci, Berkeley, CA 94720 USA.
RP Chirilli, GA (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Nucl Sci, 1 Cyclotron Rd, Berkeley, CA 94720 USA.
EM gchirilli@lbl.gov
NR 33
TC 0
Z9 0
U1 0
U2 0
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0907-1
J9 AIP CONF PROC
PY 2011
VL 1350
DI 10.1063/1.3601413
PG 5
WC Physics, Particles & Fields
SC Physics
GA BZT92
UT WOS:000302953000047
ER
PT S
AU Fazio, S
AF Fazio, Salvatore
BE Capua, M
Fiore, R
Ivanov, I
Papa, A
Soffer, J
Tassi, E
TI DVCS with an EIC/eRHIC
SO DIFFRACTION 2010: INTERNATIONAL WORKSHOP ON DIFFRACTION IN HIGH ENERGY
PHYSICS
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT International Workshop on Diffraction in High Energy Physics
(DIFFRACTION)
CY SEP 10-15, 2010
CL Otranto, ITALY
SP Univ della Calabria, Istituto Nazionale Fisica Nucleare (INFN), Temple Univ, CERN, DESY, Provincia Lecce, Univ Calabria, Phys Dept
DE DVCS; Vector Mesons; EIC; eRHIC; diffraction
ID SMALL-X
AB An overview of the status of the diffractive physics program with the future EIC/eRHIC will be given. eRHIC is a machine designed to collide an electron beam with energies ranging from 5 GeV up to 20 (30) GeV with a hadron beam (protons, nuclei) at an energy, which can be varied from 50 GeV up to 325 GeV. The high luminosity of the machine, expected in the order of 10(34) cm(-2)s(-1), will open the opportunity for very high precision measurements.
C1 Brookhaven Natl Lab, Dept Phys, Upton, NY 11976 USA.
RP Fazio, S (reprint author), Brookhaven Natl Lab, Dept Phys, Bldg 510, Upton, NY 11976 USA.
RI Fazio, Salvatore /G-5156-2010
NR 3
TC 0
Z9 0
U1 0
U2 0
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0907-1
J9 AIP CONF PROC
PY 2011
VL 1350
DI 10.1063/1.3601436
PG 5
WC Physics, Particles & Fields
SC Physics
GA BZT92
UT WOS:000302953000070
ER
PT S
AU Guryn, W
AF Guryn, Wlodek
CA STAR Collaboration
BE Capua, M
Fiore, R
Ivanov, I
Papa, A
Soffer, J
Tassi, E
TI Present and Future of Central Production With STAR Detector at RHIC
SO DIFFRACTION 2010: INTERNATIONAL WORKSHOP ON DIFFRACTION IN HIGH ENERGY
PHYSICS
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT International Workshop on Diffraction in High Energy Physics
(DIFFRACTION)
CY SEP 10-15, 2010
CL Otranto, ITALY
SP Univ della Calabria, Istituto Nazionale Fisica Nucleare (INFN), Temple Univ, CERN, DESY, Provincia Lecce, Univ Calabria, Phys Dept
DE Exotic mesons; Glueballs; Central production; Double Pomeron Exchange
ID POMERON; COLLISIONS; ENERGIES; MESON
AB The present status and future of the physics program of Central Production using the STAR detector at RHIC are described. The program focuses on particle production in the Double Pomeron Exchange (DPE) process. Forward protons from the DPE interaction are detected in the Roman Pot system installed at 55.5 m and 58.5 m on both sides of the STAR interaction point. The recoil system of charged particles from the DPE process is measured in the STAR Time Projection Chamber (TPC). The first data were taken during the 2009 RHIC Run 9 using polarized proton-proton collisions at root s = 200 GeV. The preliminary spectra of two pion and four pion invariant mass reconstructed by STAR TPC in central region of pseudo-rapidity vertical bar eta vertical bar < 1, are presented. Plans to take data with the current system at root s = 500 GeV and plans to upgrade the forward proton tagging system, so that it can reach higher masses and obtain large data samples to allow searching for glueballs that could be produced in the DPE process, are also discussed.
C1 [Guryn, Wlodek; STAR Collaboration] Brookhaven Natl Lab, Upton, NY 11973 USA.
RP Guryn, W (reprint author), Brookhaven Natl Lab, Upton, NY 11973 USA.
NR 26
TC 1
Z9 1
U1 3
U2 10
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0907-1
J9 AIP CONF PROC
PY 2011
VL 1350
DI 10.1063/1.3601385
PG 5
WC Physics, Particles & Fields
SC Physics
GA BZT92
UT WOS:000302953000019
ER
PT S
AU Musch, BU
Hagler, P
Negele, JW
Schafer, A
AF Musch, B. U.
Haegler, Ph.
Negele, J. W.
Schaefer, A.
BE Capua, M
Fiore, R
Ivanov, I
Papa, A
Soffer, J
Tassi, E
TI Transverse momentum distributions inside the nucleon from lattice QCD
SO DIFFRACTION 2010: INTERNATIONAL WORKSHOP ON DIFFRACTION IN HIGH ENERGY
PHYSICS
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT International Workshop on Diffraction in High Energy Physics
(DIFFRACTION)
CY SEP 10-15, 2010
CL Otranto, ITALY
SP Univ della Calabria, Istituto Nazionale Fisica Nucleare (INFN), Temple Univ, CERN, DESY, Provincia Lecce, Univ Calabria, Phys Dept
DE transverse momentum; parton distribution functions; lattice; QCD
ID PARTON DISTRIBUTION; LEPTOPRODUCTION; HADRON
AB We study transverse momentum dependent parton distribution functions (TMDs) with non-local operators in lattice QCD, using MILC/LHPC lattices. Results obtained with a simplified operator geometry show visible dipole deformations of spin-dependent quark momentum densities.
C1 [Musch, B. U.; Haegler, Ph.; Negele, J. W.; Schaefer, A.] Jefferson Lab, Ctr Theory, 12000 Jefferson Ave, Newport News, VA 23606 USA.
RP Musch, BU (reprint author), Jefferson Lab, Ctr Theory, 12000 Jefferson Ave, Newport News, VA 23606 USA.
FU Emmy-Noether program; DFG [SFB/TRR- 55]; US Department of Energy
[DE-FG02-94ER40818]; U.S. DOE [DE-AC05- 06OR23177]; U.S. Government
FX We are grateful to the LHP and MILC collaborations, for providing us
gauge configurations and propagators. We thank Vladimir Braun, Meinulf
Gockeler, Gunnar Bali, Markus Diehl, Alexei Bazavov, and Dru Renner for
helpful discussions. Our software uses the Chroma-library [20], and we
use USQCD computing resources at Jefferson Lab. We acknowledge support
by the Emmy-Noether program and the cluster of excellence Origin and
Structure of the Universe of the DFG (Ph.H. and B.M.), SFB/TRR- 55
(A.S.) and the US Department of Energy grant DE-FG02-94ER40818 (J.N.).
Authored by Jefferson Science Associates, LLC under U.S. DOE Contract
No. DE-AC05- 06OR23177. The U.S. Government retains a non-exclusive,
paid-up, irrevocable, worldwide license to publish or reproduce this
manuscript for U.S. Government purposes.
NR 18
TC 0
Z9 0
U1 0
U2 0
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0907-1
J9 AIP CONF PROC
PY 2011
VL 1350
DI 10.1063/1.3601431
PG 4
WC Physics, Particles & Fields
SC Physics
GA BZT92
UT WOS:000302953000065
ER
PT S
AU Prokudin, A
AF Prokudin, Alexei
BE Capua, M
Fiore, R
Ivanov, I
Papa, A
Soffer, J
Tassi, E
TI Electron Ion Collider transverse spin physics
SO DIFFRACTION 2010: INTERNATIONAL WORKSHOP ON DIFFRACTION IN HIGH ENERGY
PHYSICS
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT International Workshop on Diffraction in High Energy Physics
(DIFFRACTION)
CY SEP 10-15, 2010
CL Otranto, ITALY
SP Univ della Calabria, Istituto Nazionale Fisica Nucleare (INFN), Temple Univ, CERN, DESY, Provincia Lecce, Univ Calabria, Phys Dept
DE Transverse Momentum Dependent distributions; Spin Asymmetries; Semi
Inclusive Deep Inelastic Scattering
ID DISTRIBUTIONS; ASYMMETRIES; SCATTERING; NUCLEON; MODEL
AB Electron Ion Collider is a future high energy facility for studies of the structure of the nucleon. Three-dimensional parton structure is one of the main goals of EIC. In momentum space Transverse Momentum Dependent Distributions (TMDs) are the key ingredients to map such a structure. At leading twist spin structure of spin-1/2 hadron can be described by 8 TMDs. Experimentally these functions can be studied in polarised SIDIS experiments. We discuss Sivers distribution function that describes distribution of unpolarised quarks in a transversely polarised nucleon and transversity that measures distribution of transversely polarised quarks in a transversely polarised nucleon.
C1 Jefferson Lab, Newport News, VA 23606 USA.
RP Prokudin, A (reprint author), Jefferson Lab, 12000 Jefferson Ave, Newport News, VA 23606 USA.
EM prokudin@jlab.org
NR 24
TC 0
Z9 0
U1 0
U2 0
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0907-1
J9 AIP CONF PROC
PY 2011
VL 1350
DI 10.1063/1.3601435
PG 5
WC Physics, Particles & Fields
SC Physics
GA BZT92
UT WOS:000302953000069
ER
PT S
AU White, SN
AF White, Sebastian N.
BE Capua, M
Fiore, R
Ivanov, I
Papa, A
Soffer, J
Tassi, E
TI Very Forward Calorimetry at the LHC - Recent results from ATLAS
SO DIFFRACTION 2010: INTERNATIONAL WORKSHOP ON DIFFRACTION IN HIGH ENERGY
PHYSICS
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT International Workshop on Diffraction in High Energy Physics
(DIFFRACTION)
CY SEP 10-15, 2010
CL Otranto, ITALY
SP Univ della Calabria, Istituto Nazionale Fisica Nucleare (INFN), Temple Univ, CERN, DESY, Provincia Lecce, Univ Calabria, Phys Dept
DE very forward calorimetry
AB We present first results from the ATLAS Zero Degree Calorimeters (ZDC) based on 7 TeV pp collision data recorded in 2010. The ZDC coverage of +/- similar to 350 mu rad about the forward direction makes possible the measurement of neutral particles (primarily pi(0)'s and neutrons) over the kinematic region x(F) greater than or similar to 0.1 and out to p(T) less than or similar to 1.2 GeV/c at large x(F). The ATLAS ZDC is unique in that it provides a complete image of both electromagnetic and hadronic showers. This is illustrated with the reconstruction of pi(0)'s with energies of 0.7-3.5 TeV. We also discuss the waveform reconstruction algorithm which has allowed good time-of-flight resolution on leading neutrons emerging from the collisions despite the sparse (40 MHz) sampling of the calorimeter signals used.
C1 Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA.
RP White, SN (reprint author), Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA.
NR 14
TC 0
Z9 0
U1 0
U2 1
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0907-1
J9 AIP CONF PROC
PY 2011
VL 1350
DI 10.1063/1.3601384
PG 7
WC Physics, Particles & Fields
SC Physics
GA BZT92
UT WOS:000302953000018
ER
PT S
AU Semertzidis, YK
AF Semertzidis, Yannis K.
BE DiDomenico, A
Bini, C
Bloise, C
Bossi, F
Faccini, R
Gauzzi, P
Isidori, G
Lipari, P
Ludovici, L
Silvestrini, L
TI Review of EDM experiments
SO DISCRETE 2010: SYMPOSIUM ON PROSPECTS IN THE PHYSICS OF DISCRETE
SYMMETRIES
SE Journal of Physics Conference Series
LA English
DT Proceedings Paper
CT Symposium on Prospects in the Physics of Discrete Symmetries (DISCRETE)
CY DEC 06-11, 2010
CL Sapienza Univ Roma, Rome, ITALY
SP Istituto Nazionale Fisica Nucleare (INFN), Consiglio Nazionale delle Ricerche (CNR), CAEN S.p.A.
HO Sapienza Univ Roma
ID ELECTRIC-DIPOLE-MOMENT; NEUTRON; ATOM; INVARIANCE; VIOLATION; SEARCH
AB The current limits on physics beyond the SM come in large part from the non-observation of EDMs in the sensitive electric dipole moment experiments, like the neutron, Hg-199, and Tl-205. New systems with enhanced EDM sensitivity are coming online and promise a resolution of the baryon asymmetry of our universe (if an EDM is observed) or a severe constraint on physics beyond the SM by the end of the current decade.
C1 Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA.
RP Semertzidis, YK (reprint author), Brookhaven Natl Lab, Dept Phys, Bldg 510A, Upton, NY 11973 USA.
EM yannis@bnl.gov
NR 40
TC 8
Z9 8
U1 0
U2 3
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1742-6588
J9 J PHYS CONF SER
PY 2011
VL 335
AR 012012
DI 10.1088/1742-6596/335/1/012012
PG 14
WC Physics, Particles & Fields
SC Physics
GA BZD67
UT WOS:000301184800012
ER
PT J
AU Searcy, EM
Blackwelder, DB
Delwiche, ME
Ray, AE
Kenney, KL
AF Searcy, Erin M.
Blackwelder, D. Brad
Delwiche, Mark E.
Ray, Allison E.
Kenney, Kevin L.
TI Impact of Screening on Behavior during Storage and Cost of Ground
Small-Diameter Pine Trees: A Case Study
SO FOREST PRODUCTS JOURNAL
LA English
DT Article
ID FOREST RESIDUES; WOOD FUEL; QUALITY
AB Whole comminuted trees are known to self-heat and undergo quality changes during storage. Trommel screening after grinding is a process that removes fines from the screened material and removes a large proportion of high-ash, high-nutrient material. In this study, the trade-off between an increase in preprocessing cost from trommel screening and an increase in quality of the screened material was examined. Fresh lodgepole pine (Pinus contorta) was comminuted using a drum grinder with a 10-cm screen, and the resulting material was distributed into separate fines and overs piles. A third pile of unscreened material, the unsorted pile, was also examined. The three piles exhibited different characteristics during a 6-week storage period. The overs pile was much slower to heat. The overs pile reached a maximum temperature of 56.8 degrees C, which was lower than the maximum reached by the other two piles (65.9 degrees C and 63.4 degrees C for the unsorted and fines, respectively). The overs also cooled faster and dried to a more uniform moisture content and had a lower ash content than the other two piles. Both piles of sorted material exhibited improved airflow and more drying than the unsorted material. Looking at supply system costs from preprocessing through in-feed into thermochemical conversion, this study found that trommel screening reduced system costs by over $3.50 per dry matter ton and stabilized material during storage.
C1 [Searcy, Erin M.; Delwiche, Mark E.; Ray, Allison E.; Kenney, Kevin L.] Idaho Natl Lab, Idaho Falls, ID USA.
[Blackwelder, D. Brad] Caribou Targhee Natl Forest, Pocatello, ID USA.
RP Searcy, EM (reprint author), Idaho Natl Lab, Idaho Falls, ID USA.
EM Erin.Searcy@inl.gov; dbblackwelder@fs.fed.us; Mark.Delwiche@inl.gov;
Allison.Ray@inl.gov; Kevin.Kenney@inl.gov
FU US Department of Energy
FX The authors gratefully acknowledge the assistance of Gary Wilcox and his
staff at Wilcox Brothers Logging for harvesting, collecting, and
preprocessing the biomass used in this study. The authors are also
appreciative of the help from several people at INL, including David
Combs for graphics work, Leslie Ovard and Bill Smith for technical
editing, Jacob Jacobson for cost determination, and Manunya Phanphanich
for data interpretation consultation. The authors thank Jeremy Eaton and
Ian Bonner for laboratory analysis and the US Department of Energy for
providing funding for the project.
NR 34
TC 0
Z9 0
U1 0
U2 6
PU FOREST PRODUCTS SOC
PI MADISON
PA 2801 MARSHALL COURT, MADISON, WI 53705-2295 USA
SN 0015-7473
J9 FOREST PROD J
JI For. Prod. J.
PY 2011
VL 61
IS 7
BP 570
EP 578
PG 9
WC Forestry; Materials Science, Paper & Wood
SC Forestry; Materials Science
GA 932QS
UT WOS:000303306200009
ER
PT S
AU Kasahara, K
Nakai, M
Shimizu, Y
Suzuki, T
Torii, S
Yoshida, K
Tamura, T
Fukatsu, K
Itow, Y
Kawade, K
Mase, T
Masuda, K
Matsubara, Y
Mitsuka, G
Sako, T
Suzuki, K
Taki, K
Menjo, H
Muraki, Y
Haguenauer, M
Turner, WC
Adriani, O
Bonechi, L
Bongi, M
Castellini, G
D'Alessandro, R
Grandi, M
Papini, P
Ricciarini, S
Noda, K
Tricomi, A
Faus, A
Velasco, J
Macina, D
Perrot, AL
AF Kasahara, K.
Nakai, M.
Shimizu, Y.
Suzuki, T.
Torii, S.
Yoshida, K.
Tamura, T.
Fukatsu, K.
Itow, Y.
Kawade, K.
Mase, T.
Masuda, K.
Matsubara, Y.
Mitsuka, G.
Sako, T.
Suzuki, K.
Taki, K.
Menjo, H.
Muraki, Y.
Haguenauer, M.
Turner, W. C.
Adriani, O.
Bonechi, L.
Bongi, M.
Castellini, G.
D'Alessandro, R.
Grandi, M.
Papini, P.
Ricciarini, S.
Noda, K.
Tricomi, A.
Faus, A.
Velasco, J.
Macina, D.
Perrot, A-L.
BE Sagawa, H
Kawasaki, Y
Sako, T
Takeda, M
Tsunesada, Y
TI First year results from LHCf
SO INTERNATIONAL SYMPOSIUM ON THE RECENT PROGRESS OF ULTRA-HIGH ENERGY
COSMIC RAY OBSERVATION
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT International Symposium on the Recent Progress of Ultra-High Energy
Cosmic Ray Observation
CY DEC 10-12, 2010
CL Aichi, JAPAN
SP Univ Tokyo, Inst Cosm Ray Res (ICRR), Nagoya Univ GCOE Program, Osaka City Univ GCOE Program, Tokyo Inst Technol GCOE Program
DE LHC; ultra high energy cosmic rays; air shower MC simulation
ID COSMIC-RAY CASCADES; SIMULATION; COLLISIONS; ENERGIES; SPECTRA; QGSJET
AB We give a brief description of the purpose of the LHCf experiment, detectors and their performance, and what has been done in the first year experiment. A short summary of results at root s = 900 GeV is given although the energy is not an "intrinsic" LHC energy. Since detailed results at root s = 7 TeV will appear soon elsewhere, here we limit ourselves to giving also a brief account of what will come in that paper.
C1 [Kasahara, K.; Nakai, M.; Shimizu, Y.; Suzuki, T.; Torii, S.] Waseda Univ, RISE, Tokyo, Japan.
[Yoshida, K.] Shibaura Inst Technol, Shibaura, Japan.
[Tamura, T.] Kanagawa Univ, Kanagawa, Japan.
[Fukatsu, K.; Itow, Y.; Kawade, K.; Mase, T.; Masuda, K.; Matsubara, Y.; Mitsuka, G.; Sako, T.; Suzuki, K.; Taki, K.] Nagoya Univ, Solar Terrestrial Environ Lab, Nagoya, Aichi, Japan.
[Menjo, H.] Nagoya Univ, Kobasashi Maskawa Inst, Nagoya, Aichi, Japan.
[Muraki, Y.] Konan Univ, Konan, Japan.
[Haguenauer, M.] Ecole Polytech, F-91128 Palaiseau, France.
[Turner, W. C.] LBNL, Berkeley, CA USA.
[Adriani, O.; Bonechi, L.; Bongi, M.; Castellini, G.; D'Alessandro, R.; Grandi, M.; Papini, P.; Ricciarini, S.] INFN, Florence, Italy.
[D'Alessandro, R.] Univ Studi Firenze, Florence, Italy.
[Castellini, G.] IFAC, CNR, Florence, Italy.
[Noda, K.] INFN, Catania, Italy.
[Faus, A.; Velasco, J.] Univ Valencia, IFTC, Valencia, Spain.
[Macina, D.; Perrot, A-L.] CERN, Geneva, Switzerland.
RP Kasahara, K (reprint author), Waseda Univ, RISE, Tokyo, Japan.
RI Bongi, Massimo/L-9417-2015;
OI Bongi, Massimo/0000-0002-6050-1937; Ricciarini, Sergio
Bruno/0000-0001-6176-3368; Castellini, Guido/0000-0002-0177-0643;
Tricomi, Alessia Rita/0000-0002-5071-5501; Papini,
Paolo/0000-0003-4718-2895
FU Ministry of Education, Culture, Sports, Science and Technology (MEXT) of
Japan; Mitsubishi Foundation in Japan; Istituto Nazionale di Fisica
Nucleare (INFN) in Italy; Japan Society for the Promotion of Science
(JSPS); [16403003]; [20340058]; [5077205]; [1733004]; [19012003];
[18740141]
FX We thank all the related staff of CERN for the successful operation of
LHCf. This work is partly supported by Grant-in-Aid for Scientific
Research (B:16403003,20340058), Grant-in-Aid for Scientific Research on
Priority Areas (Highest Cosmic Rays: 15077205, 1733004, 19012003) and
Grant-in-Aid for Young Scientists (B:18740141), by the Ministry of
Education, Culture, Sports, Science and Technology (MEXT) of Japan. This
work is also partially supported by the Mitsubishi Foundation in Japan
and by Istituto Nazionale di Fisica Nucleare (INFN) in Italy. The
receipt of a Japan Society for the Promotion of Science (JSPS) Research
Fellowship (H.M.) is also acknowledged.
NR 18
TC 0
Z9 0
U1 1
U2 1
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0927-9
J9 AIP CONF PROC
PY 2011
VL 1367
BP 58
EP 63
DI 10.1063/1.3628716
PG 6
WC Physics, Applied; Physics, Particles & Fields
SC Physics
GA BZT58
UT WOS:000302915300011
ER
PT S
AU Othman, MA
Allen, C
Belz, J
Besson, D
Farhang-Boroujeny, B
Ikeda, D
Kunwar, S
Lundquist, JP
Kravchenko, I
Myers, I
Nakamura, T
Sagawa, H
Sokolsky, P
Takai, H
Terasawa, T
Thomson, GB
AF Othman, M. Abou Bakr
Allen, C.
Belz, J.
Besson, D.
Farhang-Boroujeny, B.
Ikeda, D.
Kunwar, S.
Lundquist, J. P.
Kravchenko, I.
Myers, I.
Nakamura, T.
Sagawa, H.
Sokolsky, P.
Takai, H.
Terasawa, T.
Thomson, G. B.
BE Sagawa, H
Kawasaki, Y
Sako, T
Takeda, M
Tsunesada, Y
TI Air Shower Detection by Bistatic Radar
SO INTERNATIONAL SYMPOSIUM ON THE RECENT PROGRESS OF ULTRA-HIGH ENERGY
COSMIC RAY OBSERVATION
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT International Symposium on the Recent Progress of Ultra-High Energy
Cosmic Ray Observation
CY DEC 10-12, 2010
CL Aichi, JAPAN
SP Univ Tokyo, Inst Cosm Ray Res (ICRR), Nagoya Univ GCOE Program, Osaka City Univ GCOE Program, Tokyo Inst Technol GCOE Program
DE Extensive Air Showers; Radar
AB Progress in the field of high-energy cosmic rays is currently limited by the rarity of the most interesting rays striking the Earth. Indeed, the continuation of the field beyond the current generation of observatories may become financially and practically impossible if new ways are not found to achieve remote coverage over large portions of the Earth's surface. We describe the development of an observatory based on such a new technique: the remote sensing via bistatic radar technology of cosmic ray induced extensive air showers. We build on pilot studies performed by MARIACHI which have demonstrated that air shower radar echoes are detectable, the opportunity afforded by the location of the Northern Hemisphere's largest "conventional" cosmic ray observatory (The Telescope Array) in radio-quiet western Utah, and the donation of analog television transmission equipment to this effort by a local television station.
C1 [Othman, M. Abou Bakr; Belz, J.; Farhang-Boroujeny, B.; Lundquist, J. P.; Myers, I.; Sokolsky, P.; Thomson, G. B.] Univ Utah, Salt Lake City, UT 84112 USA.
[Allen, C.; Besson, D.; Kunwar, S.] Univ Kansas, Lawrence, KS 66045 USA.
[Ikeda, D.; Nakamura, T.; Sagawa, H.; Terasawa, T.] Univ Tokyo, Inst Cosm Ray Res, Kashiwa, Chiba, Japan.
[Kravchenko, I.] Univ Nebraska, Lincoln, NE 68588 USA.
[Takai, H.] Brookhaven Natl Lab, Upton, NY 11973 USA.
RP Othman, MA (reprint author), Univ Utah, Salt Lake City, UT 84112 USA.
RI Takai, Helio/C-3301-2012;
OI Takai, Helio/0000-0001-9253-8307; Lundquist, Jon
Paul/0000-0002-4245-5092
FU U.S. National Science Foundation [PHY-0969865]
FX We acknowledge the support of U.S. National Science Foundation grant
PHY-0969865, and our colleagues in the Telescope Array collaboration.
NR 7
TC 2
Z9 2
U1 0
U2 0
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0927-9
J9 AIP CONF PROC
PY 2011
VL 1367
BP 143
EP 146
DI 10.1063/1.3628731
PG 4
WC Physics, Applied; Physics, Particles & Fields
SC Physics
GA BZT58
UT WOS:000302915300026
ER
PT S
AU Mase, T
Adriani, O
Bonechi, L
Bongi, M
Castellini, G
D'Alessandro, R
Fukatsu, K
Haguenauer, M
Itow, Y
Kasahara, K
Kawade, K
Macina, D
Masuda, K
Matsubara, Y
Menjo, H
Mitsuka, G
Muraki, Y
Nakai, M
Noda, K
Papini, P
Perrot, AL
Ricciarini, S
Sako, T
Shimizu, Y
Suzuki, K
Suzuki, T
Taki, K
Tamura, T
Torii, S
Tricomi, A
Turner, WC
Yoshida, K
AF Mase, T.
Adriani, O.
Bonechi, L.
Bongi, M.
Castellini, G.
D'Alessandro, R.
Fukatsu, K.
Haguenauer, M.
Itow, Y.
Kasahara, K.
Kawade, K.
Macina, D.
Masuda, K.
Matsubara, Y.
Menjo, H.
Mitsuka, G.
Muraki, Y.
Nakai, M.
Noda, K.
Papini, P.
Perrot, A. -L.
Ricciarini, S.
Sako, T.
Shimizu, Y.
Suzuki, K.
Suzuki, T.
Taki, K.
Tamura, T.
Torii, S.
Tricomi, A.
Turner, W. C.
Yoshida, K.
BE Sagawa, H
Kawasaki, Y
Sako, T
Takeda, M
Tsunesada, Y
TI The performance of the LHCf detector
SO INTERNATIONAL SYMPOSIUM ON THE RECENT PROGRESS OF ULTRA-HIGH ENERGY
COSMIC RAY OBSERVATION
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT International Symposium on the Recent Progress of Ultra-High Energy
Cosmic Ray Observation
CY DEC 10-12, 2010
CL Aichi, JAPAN
SP Univ Tokyo, Inst Cosm Ray Res (ICRR), Nagoya Univ GCOE Program, Osaka City Univ GCOE Program, Tokyo Inst Technol GCOE Program
DE high-energy cosmic-ray; hadron interaction model; LHC
AB The LHCf experiment is designed to measure energies and transverse momenta of neutral particles emitted in the forward region of root s=14 TeV p-p collision at +/- 140m away from the interaction point1 (IP1) of LHC. The energy resolution is confirm to be within 5% and the position resolution is better than 0.2 mm for gamma-rays with energies from 100 GeV to 200 GeV by the test beam results at the CERN-SPS. LHCf has taken data at 2009 and 2010 at root s = 900 GeV and 7 TeV collision. A brief summary of LHCf operation at LHC is also reported here.
C1 [Mase, T.; Fukatsu, K.; Itow, Y.; Kawade, K.; Masuda, K.; Matsubara, Y.; Mitsuka, G.; Sako, T.; Suzuki, K.; Taki, K.] Nagoya Univ, Solar Terr Environm Lab, Nagoya, Aichi 4648601, Japan.
[Adriani, O.; Bonechi, L.] Univ Florence, Florence, Italy.
[Bongi, M.; Papini, P.] INFN Sezione, Florence, Italy.
[Castellini, G.; Muraki, Y.; Tricomi, A.] INFN Sezione, IFAC CNR, Florence, Italy.
[Haguenauer, M.] Ecole Polytechn, Palaiseau, France.
[Kasahara, K.] Waseda Univ, Res Inst Sci & Engn, Tokyo, Japan.
[Macina, D.; Perrot, A. -L.] CERN, Geneva, Switzerland.
[Shimizu, Y.] Konan Univ, Kobe, Hyogo, Japan.
[Noda, K.; Turner, W. C.] INFN Sezione Catania, Catania, Italy.
[Ricciarini, S.] INFN Sezione Firenze, CSFNSM, Florence, Italy.
[Tamura, T.] Kanagawa Univ, Yokohama, Kanagawa, Japan.
[Turner, W. C.] Univ Calif Berkeley, LBNL, Berkeley, CA 94720 USA.
[Turner, W. C.] Shibaura Inst Technol, Saitama, Japan.
RP Mase, T (reprint author), Nagoya Univ, Solar Terr Environm Lab, Nagoya, Aichi 4648601, Japan.
RI Bongi, Massimo/L-9417-2015;
OI Bongi, Massimo/0000-0002-6050-1937; Ricciarini, Sergio
Bruno/0000-0001-6176-3368; Castellini, Guido/0000-0002-0177-0643;
Tricomi, Alessia Rita/0000-0002-5071-5501; Papini,
Paolo/0000-0003-4718-2895
NR 5
TC 0
Z9 0
U1 1
U2 1
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0927-9
J9 AIP CONF PROC
PY 2011
VL 1367
BP 216
EP 219
DI 10.1063/1.3628749
PG 4
WC Physics, Applied; Physics, Particles & Fields
SC Physics
GA BZT58
UT WOS:000302915300044
ER
PT S
AU Kawade, K
Suzuki, T
Adriani, O
Bonechi, L
Bongi, M
Castellini, G
D'Alessandro, R
Fukatsu, K
Haguenauer, M
Itow, Y
Kasahara, K
Macina, D
Mase, T
Masuda, K
Matsubara, Y
Menjo, H
Mitsuka, G
Muraki, Y
Nakai, M
Noda, K
Papini, P
Perrot, AL
Ricciarini, S
Sako, T
Shimizu, Y
Suzuki, K
Taki, K
Tamura, T
Torii, S
Tricomi, A
Turner, WC
Yoshida, K
AF Kawade, K.
Suzuki, T.
Adriani, O.
Bonechi, L.
Bongi, M.
Castellini, G.
D'Alessandro, R.
Fukatsu, K.
Haguenauer, M.
Itow, Y.
Kasahara, K.
Macina, D.
Mase, T.
Masuda, K.
Matsubara, Y.
Menjo, H.
Mitsuka, G.
Muraki, Y.
Nakai, M.
Noda, K.
Papini, P.
Perrot, A. -L.
Ricciarini, S.
Sako, T.
Shimizu, Y.
Suzuki, K.
Taki, K.
Tamura, T.
Torii, S.
Tricomi, A.
Turner, W. C.
Yoshida, K.
BE Sagawa, H
Kawasaki, Y
Sako, T
Takeda, M
Tsunesada, Y
TI Study of GSO scintillator for the LHCf upgrade
SO INTERNATIONAL SYMPOSIUM ON THE RECENT PROGRESS OF ULTRA-HIGH ENERGY
COSMIC RAY OBSERVATION
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT International Symposium on the Recent Progress of Ultra-High Energy
Cosmic Ray Observation
CY DEC 10-12, 2010
CL Aichi, JAPAN
SP Univ Tokyo, Inst Cosm Ray Res (ICRR), Nagoya Univ GCOE Program, Osaka City Univ GCOE Program, Tokyo Inst Technol GCOE Program
DE GSO scintillator; Radiation; LHCf; UHECR
AB The GSO scintillator has a very excellent radiation resistance, fast decay time and large amounts of light yield. Because of these features,GSO will be used to upgrade the current LHCf detector. We examined the features of GSO by using heavy ion beam at Heavy Ion Medical Accelerator in Chib a (HIMAC) Japan. The linearity of PMT R7400 for the large light yield of GSO with a Xe-132 beam and the radiation hardness with a C-12 beam were measured. As a result, GSO scintillator showed a good linearity up to the signal corresponding to 6 TeV EM-shower maximum in the LHCf detector, and a good radiation hardness up to 7x10(5) Gy. For the LHCf Arm1 detector, small scaled GSO crystals (GSO bars), have been fabricated for the position determination detector. 5 GSO bars have been manufactured and its performance have been evaluated using C-12 beam. It slight yield and position dependency have been evaluated.
C1 [Kawade, K.; Suzuki, T.; Adriani, O.; Bonechi, L.; Bongi, M.; Castellini, G.; D'Alessandro, R.; Fukatsu, K.; Haguenauer, M.; Itow, Y.; Kasahara, K.; Macina, D.; Mase, T.; Masuda, K.; Matsubara, Y.; Menjo, H.; Mitsuka, G.; Muraki, Y.; Nakai, M.; Noda, K.; Papini, P.; Perrot, A. -L.; Ricciarini, S.; Sako, T.; Shimizu, Y.; Suzuki, K.; Taki, K.; Tamura, T.; Torii, S.; Tricomi, A.; Turner, W. C.; Yoshida, K.] Nagoya Univ, Solar Terr Environm Lab, Nagoya, Aichi 4648601, Japan.
[Suzuki, T.; Kasahara, K.; Nakai, M.; Torii, S.] Waseda Univ, Res Inst Sci & Engn, Tokyo, Japan.
[Adriani, O.; Bonechi, L.; D'Alessandro, R.] Universita Stud Firenze, Florence, Italy.
[Adriani, O.; Bonechi, L.; D'Alessandro, R.; Menjo, H.; Papini, P.] INFN Sezione Firenze, Florence, Italy.
[Castellini, G.] INFN Sezione Firenz, IFAC CNR, Florence, Italy.
[Haguenauer, M.] Ecole Polytech, Palaiseau, France.
[Macina, D.; Perrot, A. -L.] CERN, Geneva, Switzerland.
[Muraki, Y.] Konan Univ, Kobe, Hyogo, Japan.
[Noda, K.; Tricomi, A.] INFN Sezione Catania, Catania, Italy.
[Ricciarini, S.] NFN Sezione Firenze, Florence, Italy.
[Ricciarini, S.] CSFNSM, Catania, Italy.
[Shimizu, Y.] Univ Tokyo, Inst Cosm Ray Res, Tokyo, Japan.
[Tamura, T.] Kanagawa Univ, Yokohama, Kanagawa, Japan.
[Turner, W. C.] LBNL, Berkeley, CA USA.
[Yoshida, K.] Shibaura Inst Technol, Saitama, Japan.
RP Kawade, K (reprint author), Nagoya Univ, Solar Terr Environm Lab, Nagoya, Aichi 4648601, Japan.
RI Bongi, Massimo/L-9417-2015;
OI Tricomi, Alessia Rita/0000-0002-5071-5501; Bongi,
Massimo/0000-0002-6050-1937; Papini, Paolo/0000-0003-4718-2895;
Ricciarini, Sergio Bruno/0000-0001-6176-3368; Castellini,
Guido/0000-0002-0177-0643
FU MEXT of Japan
FX We thank all the related staff of NIRS for the succeed of this
experiment. This work is partly supported by Grantin-Aid for Scientific
Research by MEXT of Japan.
NR 3
TC 0
Z9 0
U1 2
U2 2
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0927-9
J9 AIP CONF PROC
PY 2011
VL 1367
BP 220
EP 223
DI 10.1063/1.3628750
PG 4
WC Physics, Applied; Physics, Particles & Fields
SC Physics
GA BZT58
UT WOS:000302915300045
ER
PT S
AU Shugart, KN
Ludtka, GM
Mackiewicz-Ludkta, G
Soffa, WA
AF Shugart, K. N.
Ludtka, G. M.
Mackiewicz-Ludkta, G.
Soffa, W. A.
BE Brechet, Y
Clouet, E
Deschamps, A
Finel, A
Soisson, F
TI Exchange Coupling Nanophase Fe-Pd Ferromagnets Through Solid State
Transformation
SO SOLID-SOLID PHASE TRANSFORMATIONS IN INORGANIC MATERIALS, PTS 1-2
SE Solid State Phenomena
LA English
DT Proceedings Paper
CT International Conference on Solid-Solid Phase Transformations in
Inorganic Materials (PTM 2010)
CY JUN 06-11, 2010
CL Avignon, FRANCE
SP Mat & Process Sci & Engn Lab, CEA, Tranverse Programme Adv Mat, French Aerospace Lab, Inst Chem, Natl Ctr Sci Res, French Phase Field Network, Lab Etude Microstructures
DE Combined reactions; exchange coupling; nanocomposite; L1(0) ferromagnets
ID COERCIVITY; MAGNETS
AB This study continues previous work on off-stoichiometric Fe-Pd alloys using a combined reaction strategy during thermomechanical processing [1,2]. Severe plastic deformation of the initial disordered fcc gamma phase (gamma) of compostion Fe-35at.%Pd, followed by heat treatment in the two phase field produces a nano-composite ferromagnet comprised of soft alpha phase/ferrite (alpha) in a high-anisotropy L1(0) FePd matrix. The length scale and morphology of the transformation products have been characterized using x-ray diffraction, and scanning electron microscopy. The transformed microstructures exhibit strong texture retention similar to the stoichiometric alloy suggesting a massive ordering mode. The alloy has shown a proclivity to exchange couple at a length scale not in agreement with proposed theories of exchange coupling [3,4]. The magnetic properties were measured using standard vibrating sample magnetometry (VSM). This research has been supported by the National Science Foundation (NSF-DMR).
C1 [Shugart, K. N.; Soffa, W. A.] Univ Virginia, POB 400745, Charlottesville, VA 22904 USA.
[Ludtka, G. M.; Mackiewicz-Ludkta, G.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
RP Shugart, KN (reprint author), Univ Virginia, POB 400745, Charlottesville, VA 22904 USA.
EM kns9a@virginia.edu; ludtkagm1@ornl.gov; ludtkagm@ornl.gov;
was2n@virginia.edu
OI Shugart, Kathleen/0000-0003-0206-5476
FU National Science Foundation- Division of Materials Research [706446];
University of Virginia
FX The authors would like to thank the National Science Foundation-
Division of Materials Research, Grant # 706446, for its support. All
materials characterization was done at the Nanoscale Materials
Characterization Facility in the Department of Materials Science at the
University of Virginia.
NR 13
TC 3
Z9 3
U1 0
U2 4
PU TRANS TECH PUBLICATIONS LTD
PI DURNTEN-ZURICH
PA KREUZSTRASSE 10, 8635 DURNTEN-ZURICH, SWITZERLAND
SN 1012-0394
J9 SOLID STATE PHENOMEN
PY 2011
VL 172-174
BP 273
EP +
DI 10.4028/www.scientific.net/SSP.172-174.273
PN 1
PG 2
WC Materials Science, Multidisciplinary; Physics, Condensed Matter
SC Materials Science; Physics
GA BZY35
UT WOS:000303359700043
ER
PT S
AU Hackenberg, RE
Volz, HM
Papin, PA
Kelly, AM
Forsyth, RT
Tucker, TJ
Clarke, KD
AF Hackenberg, Robert E.
Volz, Heather M.
Papin, Pallas A.
Kelly, Ann M.
Forsyth, Robert T.
Tucker, Tim J.
Clarke, Kester D.
BE Brechet, Y
Clouet, E
Deschamps, A
Finel, A
Soisson, F
TI Kinetics of Lamellar Decomposition Reactions in U-Nb Alloys
SO SOLID-SOLID PHASE TRANSFORMATIONS IN INORGANIC MATERIALS, PTS 1-2
SE Solid State Phenomena
LA English
DT Proceedings Paper
CT International Conference on Solid-Solid Phase Transformations in
Inorganic Materials (PTM 2010)
CY JUN 06-11, 2010
CL Avignon, FRANCE
SP Mat & Process Sci & Engn Lab, CEA, Tranverse Programme Adv Mat, French Aerospace Lab, Inst Chem, Natl Ctr Sci Res, French Phase Field Network, Lab Etude Microstructures
DE Cellular Transformation; Discontinuous Precipitation; Discontinuous
Coarsening
ID CELLULAR PRECIPITATE; GROWTH-KINETICS; SOLID-SOLUTIONS; NIOBIUM ALLOYS;
URANIUM; EUTECTOIDS; PHASE
C1 [Hackenberg, Robert E.; Volz, Heather M.; Papin, Pallas A.; Kelly, Ann M.; Forsyth, Robert T.; Tucker, Tim J.; Clarke, Kester D.] Los Alamos Natl Lab, Mat Sci & Technol Div, Los Alamos, NM 87545 USA.
RP Hackenberg, RE (reprint author), Los Alamos Natl Lab, Mat Sci & Technol Div, Mail Stop G770,POB 1663, Los Alamos, NM 87545 USA.
EM roberth@lanl.gov; hvolz@lanl.gov; papin@lanl.gov; akelly@lanl.gov;
rforsyth@lanl.gov; tjtucker@lanl.gov; kclarke@lanl.gov
OI Hackenberg, Robert/0000-0002-0380-5723
NR 29
TC 3
Z9 3
U1 2
U2 15
PU TRANS TECH PUBLICATIONS LTD
PI DURNTEN-ZURICH
PA KREUZSTRASSE 10, 8635 DURNTEN-ZURICH, SWITZERLAND
SN 1012-0394
J9 SOLID STATE PHENOMEN
PY 2011
VL 172-174
BP 555
EP 560
DI 10.4028/www.scientific.net/SSP.172-174.555
PN 1
PG 6
WC Materials Science, Multidisciplinary; Physics, Condensed Matter
SC Materials Science; Physics
GA BZY35
UT WOS:000303359700086
ER
PT S
AU Farrow, A
Laird, C
AF Farrow, Adam
Laird, Campbell
BE Brechet, Y
Clouet, E
Deschamps, A
Finel, A
Soisson, F
TI Precipitation in Solution-Treated Al-4wt%Cu under Cyclic Strain
SO SOLID-SOLID PHASE TRANSFORMATIONS IN INORGANIC MATERIALS, PTS 1-2
SE Solid State Phenomena
LA English
DT Proceedings Paper
CT International Conference on Solid-Solid Phase Transformations in
Inorganic Materials (PTM 2010)
CY JUN 06-11, 2010
CL Avignon, FRANCE
SP Mat & Process Sci & Engn Lab, CEA, Tranverse Programme Adv Mat, French Aerospace Lab, Inst Chem, Natl Ctr Sci Res, French Phase Field Network, Lab Etude Microstructures
DE Aluminum; Fatigue; Precipitation; Diffusion; Vacancy
ID ALUMINUM; DIFFUSION; COPPER; ALLOY
AB Solution-treated Al-4wt%Cu was strain-cycled at ambient temperature and above and the precipitation behavior investigated by TEM. In the temperature range 100 degrees C to 200 degrees C precipitation of Theta '' appears to have been suppressed and precipitation of Theta' promoted via cyclic strain. Anomalously rapid growth of precipitates appears to have been facilitated by a vacancy supersaturation generated by dislocation motion, with a diminishing effect observed at higher temperatures due to the faster recovery of non-equilibrium vacancy concentrations. Theta' precipitates generated under cyclic strain are considerably smaller and more finely dispersed than those typically produced via quench-aging due to their heterogeneous nucleation on dislocations, and possess a low aspect ratio and rounded edges of the broad faces due to the introduction of ledges into the growing precipitates by dislocation cutting. Frequency effects indicate that dislocation motion, rather than the extremely small precipitate size, is responsible for the observed reduction in aspect ratio. Accelerated formation of grain boundary precipitates appears partially responsible for rapid intergranular fatigue failure following cycling at elevated temperatures, producing fatigue striations and ductile dimples coexistent on the fracture surface.
C1 [Farrow, Adam] Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87544 USA.
[Laird, Campbell] Univ Penn, Philadelphia, PA 19104 USA.
RP Farrow, A (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87544 USA.
EM afarrow@lanl.gov; laird@seas.upenn.edu
NR 16
TC 1
Z9 1
U1 0
U2 1
PU TRANS TECH PUBLICATIONS LTD
PI DURNTEN-ZURICH
PA KREUZSTRASSE 10, 8635 DURNTEN-ZURICH, SWITZERLAND
SN 1012-0394
J9 SOLID STATE PHENOMEN
PY 2011
VL 172-174
BP 715
EP +
DI 10.4028/www.scientific.net/SSP.172-174.715
PN 1
PG 2
WC Materials Science, Multidisciplinary; Physics, Condensed Matter
SC Materials Science; Physics
GA BZY35
UT WOS:000303359700110
ER
PT S
AU Martinez, E
Fu, CC
Levesque, M
Nastar, M
Soisson, F
AF Martinez, E.
Fu, C. -C.
Levesque, M.
Nastar, M.
Soisson, F.
BE Brechet, Y
Clouet, E
Deschamps, A
Finel, A
Soisson, F
TI Simulations of decomposition kinetics of Fe-Cr solid solutions during
thermal aging
SO SOLID-SOLID PHASE TRANSFORMATIONS IN INORGANIC MATERIALS, PTS 1-2
SE Solid State Phenomena
LA English
DT Proceedings Paper
CT International Conference on Solid-Solid Phase Transformations in
Inorganic Materials (PTM 2010)
CY JUN 06-11, 2010
CL Avignon, FRANCE
SP Mat & Process Sci & Engn Lab, CEA, Tranverse Programme Adv Mat, French Aerospace Lab, Inst Chem, Natl Ctr Sci Res, French Phase Field Network, Lab Etude Microstructures
DE Precipitation Kinetics; Fe-Cr alloys; Monte Carlo simulations
ID SMALL-ANGLE SCATTERING; THERMODYNAMIC PROPERTIES; ALLOYS
AB The decomposition of Fe-Cr solid solutions during thermal aging is modeled by Atomistic Kinetic Monte Carlo (AKMC) simulations, using a rigid lattice approximation with composition dependant pair interactions that can reproduce the change of sign of the mixing energy with the alloy composition. The interactions are fitted on ab initio mixing energies and on the experimental phase diagram, as well as on the migration barriers in iron and chromium rich phases. Simulated kinetics is compared with 3D atom probe and neutron scattering experiments.
C1 [Martinez, E.] Los Alamos Natl Lab, EFRC, MST 8, Los Alamos, NM 87544 USA.
RP Martinez, E (reprint author), Los Alamos Natl Lab, EFRC, MST 8, Los Alamos, NM 87544 USA.
EM enriquem@lanl.gov; chuchun.fu@cea.fr; maximilen.levesque@cea.fr;
maylise.nastar@cea.fr; frederic.soisson@cea.fr; frederic.soisson@cea.fr
RI soisson, frederic/B-2917-2009; Fu, Chu-Chun/L-5046-2016;
OI soisson, frederic/0000-0001-6435-6119; Fu, Chu-Chun/0000-0003-4369-8296;
Levesque, Maximilien/0000-0003-1757-5225
NR 20
TC 5
Z9 5
U1 0
U2 2
PU TRANS TECH PUBLICATIONS LTD
PI STAFA-ZURICH
PA LAUBLSRUTISTR 24, CH-8717 STAFA-ZURICH, SWITZERLAND
SN 1012-0394
J9 SOLID STATE PHENOMEN
PY 2011
VL 172-174
BP 1016
EP 1021
DI 10.4028/www.scientific.net/SSP.172-174.1016
PN 1
PG 6
WC Materials Science, Multidisciplinary; Physics, Condensed Matter
SC Materials Science; Physics
GA BZY35
UT WOS:000303359700158
ER
PT S
AU Rohwer, LES
Chu, D
AF Rohwer, Lauren E. S.
Chu, Dahwey
GP IEEE
TI Thin Gold to Gold Bonding for Flip Chip Applications
SO 2011 IEEE 61ST ELECTRONIC COMPONENTS AND TECHNOLOGY CONFERENCE (ECTC)
SE Electronic Components and Technology Conference
LA English
DT Proceedings Paper
CT IEEE 61st Electronic Components and Technology Conference (ECTC)
CY MAY 31-JUN 03, 2011
CL Lake Buena Vista, FL
SP IEEE, IEEE Components, Packaging & Mfg Technol Soc (CPMT)
ID SELF-ASSEMBLED MONOLAYERS; PROCESS WINDOWS; WIRE
AB We have demonstrated a solderless flip chip bonding process that utilizes electroless nickel / palladium, immersion gold pad metallization. This mask-less process enables higher interconnect densities than can be achieved with standard solder bump reflow. The thin (100nm) immersion gold surfaces were coated with dodecanethiol self-assembled monolayers. Strong gold to gold bonds were formed at 185 degrees C with shear strengths that exceed Mil-Std 883 requirements. Gold stud bumps are also promising for flip chip applications, and can be bonded at 150 degrees C when the gold surfaces are properly pre-treated - dilute piranha solution, argon plasma, and dodecanethiol SAM treatments work equally well.
C1 [Rohwer, Lauren E. S.; Chu, Dahwey] Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Rohwer, LES (reprint author), Sandia Natl Labs, POB 5800,MS-0892, Albuquerque, NM 87185 USA.
EM leshea@sandia.gov
NR 15
TC 2
Z9 2
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 0569-5503
BN 978-1-61284-498-5
J9 ELEC COMP C
PY 2011
BP 907
EP 910
PG 4
WC Engineering, Electrical & Electronic
SC Engineering
GA BZP73
UT WOS:000302341400137
ER
PT S
AU Chanchani, R
Nordquist, CD
Olsson, RH
Peterson, T
Shul, R
Ahlers, C
Plut, TA
Patrizi, GA
AF Chanchani, Rajen
Nordquist, Christopher D.
Olsson, Roy H., III
Peterson, Tracy
Shul, Randy
Ahlers, Catalina
Plut, Thomas A.
Patrizi, Gary A.
GP IEEE
TI A New Wafer-Level Packaging Technology for MEMS with Hermetic
Micro-Environment
SO 2011 IEEE 61ST ELECTRONIC COMPONENTS AND TECHNOLOGY CONFERENCE (ECTC)
SE Electronic Components and Technology Conference
LA English
DT Proceedings Paper
CT IEEE 61st Electronic Components and Technology Conference (ECTC)
CY MAY 31-JUN 03, 2011
CL Lake Buena Vista, FL
SP IEEE, IEEE Components, Packaging & Mfg Technol Soc (CPMT)
AB We report a new wafer-level packaging technology for miniature MEMS in a hermetic micro-environment. The unique and new feature of this technology is that it only uses low cost wafer-level processes such as eutectic bonding, Bosch etching and mechanical lapping and thinning steps as compared to more expensive process steps that will be required in other alternative wafer-level technologies involving thru-silicon vias or membrane lids. We have demonstrated this technology by packaging silicon-based AlN microsensors in packages of size 1.3 x 1.3 mm(2) and 200 micrometer thick. Our initial cost analysis has shown that when mass produced with high yields, this device will cost $0.10 to $0.90.
The technology involves first preparing the lid and MEMS wafers separately with the sealring metal stack of Ti/Pt/Au on the MEMS wafers and Ti/Pt/Au/Ge/Au on the lid wafers. On the MEMS wafers, the Signal/Power/Ground interconnections to the wire-bond pads are isolated from the sealring metallization by an insulating AlN layer. Prior to bonding, the lid wafers were Bosch-etched in the wirebond pad area by 120 mu m and in the center hermetic device cavity area by 20 mu m. The MEMS and the lid wafers were then aligned and bonded in vacuum or in a nitrogen environment at or above the Au-Ge Eutectic temperature, 363 degrees C. The bonded wafers were then thinned and polished first on the MEMS side and then on the lid side. The MEMS side was thinned to 100 mu ms with a nearly scratch-free and crack-free surface. The lid side was similarly thinned to 100 mu ms exposing the wire-bond pads. After thinning, a 100 mu m thick lid remained over the MEMS features providing a 20 mu m high hermetic microenvironment. Thinned MEMS/Lid wafer-level assemblies were then sawed into individual devices. These devices can be integrated into the next-level assembly either by wire-bonding or by surface mounting.
The wafer-level packaging approach developed in this project demonstrated RF Feedthroughs with <0.3 dB insertion loss and adequate RF performance through 2 GHz. Pressure monitoring Pirani structures built inside the hermetic lids have demonstrated the ability to detect leaks in the package. In our preliminary development experiments, we have demonstrated >50% hermetic yields.
C1 [Chanchani, Rajen; Nordquist, Christopher D.; Olsson, Roy H., III; Peterson, Tracy; Shul, Randy; Ahlers, Catalina; Plut, Thomas A.; Patrizi, Gary A.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Chanchani, R (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
EM chanchr@sandia.gov
NR 17
TC 5
Z9 5
U1 1
U2 4
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 0569-5503
BN 978-1-61284-498-5
J9 ELEC COMP C
PY 2011
BP 1604
EP 1609
PG 6
WC Engineering, Electrical & Electronic
SC Engineering
GA BZP73
UT WOS:000302341400243
ER
PT S
AU Nygren, D
AF Nygren, David
BE Irastorza, IG
Scholberg, K
Colas, P
Giomataris, I
TI Can the "intrinsic" energy resolution in xenon be surpassed?
SO 5TH SYMPOSIUM ON LARGE TPCS FOR LOW ENERGY RARE EVENT DETECTION AND
WORKSHOP ON NEUTRINOS FROM SUPERNOVAE
SE Journal of Physics Conference Series
LA English
DT Proceedings Paper
CT 5th Symposium on Large TPCs for Low Energy Rare Event Detection/Workshop
on Neutrinos from Supernovae
CY DEC 14-17, 2010
CL Paris, FRANCE
SP CEA/IRFU, CNRS/IN2P3, Univ Zaragoza, ETH-Zurich
ID HIGH-PRESSURE XENON; PROPORTIONAL SCINTILLATION COUNTER;
DOUBLE-BETA-DECAY; LIGHT-EMISSION; DRIFT CHAMBER; GAS; MIXTURES; XE-136;
DETECTORS; SEARCH
AB Energy resolution is determined by fluctuations in the transformation of deposited energy to ionization and excitation. For noble gases, adding a molecular impurity that introduces a strong Penning effect reduces the Fano factor, improving energy resolution. I show that in xenon, adding trimethylamine (TMA) may provide a strong Penning effect and also permit electroluminescence (EL) at wavelengths characteristic of TMA. This combination may permit a large TPC to be operated with better than "intrinsic" energy resolution in the search for neutrino-less double beta decay in Xe-136. This path is being explored within the context of the NEXT collaboration.
C1 Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Phys, Berkeley, CA 94720 USA.
RP Nygren, D (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Phys, Berkeley, CA 94720 USA.
EM drnygren@lbl.gov
NR 35
TC 9
Z9 9
U1 0
U2 2
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1742-6588
J9 J PHYS CONF SER
PY 2011
VL 309
AR 012006
DI 10.1088/1742-6596/309/1/012006
PG 6
WC Physics, Nuclear; Physics, Particles & Fields
SC Physics
GA BZV33
UT WOS:000303044900006
ER
PT S
AU Tsoupas, N
AF Tsoupas, Nicholaos
BE McDaniel, FD
Doyle, BL
TI Uniform Beam Distributions Of Charged Particle Beams
SO APPLICATION OF ACCELERATORS IN RESEARCH AND INDUSTRY: TWENTY-FIRST
INTERNATIONAL CONFERENCE
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 21st International Conference on Application of Accelerators in Research
and Industry (CAARI)
CY AUG 08-13, 2010
CL Ft Worth, TX
SP Univ N Texas, Sandia Natl Lab, Los Alamos Natl Labs, AccSys Technol Inc, High Voltage Engn Europa BV, Natl Electrostat Corp, TDK-Lambda Amer
DE Third order beam optics; uniform beam distribution
AB The use of octupole elements was originally suggested [1] to transform the transverse Gaussian distribution of a charged particle beam into a uniform beam distribution having rectangular cross section. The first experimental realization of this concept was materialized at the Radiation Effects Facility (REF) of the Brookhaven National Laboratory (BNL) [2] where the transverse Gaussian distribution of a 200MeV H- beam was transformed into a rectangular uniform distribution. Later, the beam line of the NASA Space Radiation Laboratory (NSRL) facility [3,4] built at BNL, was specifically designed to generate uniform beam distributions with rectangular cross sections, in both, the horizontal and vertical directions, at the location of the target. The NSRL facility generates uniform beam distributions of various nuclear species, which may vary in energy, and also vary in size of the uniform beam distribution. We will present an overview of the method to generate uniform beam distributions, show some results from the NSRL facility, and suggest other possibilities for generating such beam distributions.
C1 Brookhaven Natl Lab, CA, Upton, NY 11973 USA.
RP Tsoupas, N (reprint author), Brookhaven Natl Lab, CA, 911B, Upton, NY 11973 USA.
NR 5
TC 0
Z9 0
U1 2
U2 5
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0891-3
J9 AIP CONF PROC
PY 2011
VL 1336
BP 11
EP 15
DI 10.1063/1.3586047
PG 5
WC Physics, Applied
SC Physics
GA BZT55
UT WOS:000302912900001
ER
PT S
AU Ticos, CM
Wang, ZH
AF Ticos, Catalin M.
Wang, Zhehui
BE McDaniel, FD
Doyle, BL
TI Dust Accelerators And Their Applications In High-Temperature Plasmas
SO APPLICATION OF ACCELERATORS IN RESEARCH AND INDUSTRY: TWENTY-FIRST
INTERNATIONAL CONFERENCE
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 21st International Conference on Application of Accelerators in Research
and Industry (CAARI)
CY AUG 08-13, 2010
CL Ft Worth, TX
SP Univ N Texas, Sandia Natl Labs, Los Alamos Natl Lab, AccSys Technol Inc, High Voltage Engn Europa BV, Natl Electrostat Corp, TDK-Lambda Amer
DE Dust; Accelerators; Plasma; Fusion
ID FUSION DEVICES; INJECTION
AB The perennial presence of dust in high-temperature plasma and fusion devices has been firmly established. Dust inventory must be controlled, in particular in the next-generation steady-state fusion machines like ITER, as it can pose significant safety hazards and potentially interfere with fusion energy production. Although much effort has been devoted to getting rid of the dust nuisance, there are instances where a controlled use of dust can be beneficial. We have recognized a number of dust-accelerators applications in magnetic fusion, including in plasma diagnostics, in studying dust-plasma interactions, and more recently in edge localized mode (ELM)'s pacing. With the applications in mind, we will compare various acceleration methods, including electrostatic, gas-drag, and plasma-drag acceleration. We will also describe laboratory experiments and results on dust acceleration.
C1 [Ticos, Catalin M.] Natl Inst Lasers Plasma & Radiat Phys, 409 Atomistilor Str, Bucharest 077125, Romania.
[Wang, Zhehui] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Ticos, CM (reprint author), Natl Inst Lasers Plasma & Radiat Phys, 409 Atomistilor Str, Bucharest 077125, Romania.
RI Ticos, Catalin/F-1677-2011
NR 13
TC 0
Z9 0
U1 0
U2 6
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0891-3
J9 AIP CONF PROC
PY 2011
VL 1336
BP 26
EP 28
DI 10.1063/1.3586050
PG 3
WC Physics, Applied
SC Physics
GA BZT55
UT WOS:000302912900004
ER
PT S
AU Kurennoy, SS
AF Kurennoy, Sergey S.
BE McDaniel, FD
Doyle, BL
TI Novel Linac Structures For Low-Beta Ions And For Muons
SO APPLICATION OF ACCELERATORS IN RESEARCH AND INDUSTRY: TWENTY-FIRST
INTERNATIONAL CONFERENCE
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 21st International Conference on Application of Accelerators in Research
and Industry (CAARI)
CY AUG 08-13, 2010
CL Ft Worth, TX
SP Univ N Texas, Sandia Natl Lab, Los Alamos Natl Labs, AccSys Technol Inc, High Voltage Engn Europa BV, Natl Electrostat Corp, TDK-Lambda Amer
DE Accelerator; linac; ion; muon; beam
AB Development of two innovative linacs is discussed. (1) High-efficiency normal-conducting accelerating structures for ions with beam velocities in the range of a few percent of the speed of light. Two existing accelerator technologies - the H-mode resonator cavities and transverse beam focusing by permanent-magnet quadrupoles (PMQ) - are merged to create efficient structures for light-ion beams of considerable currents. The inter-digital H-mode accelerator with PMQ focusing (IH-PMQ) has the shunt impedance 10-20 times higher than the standard drift-tube linac. Results of the combined 3-D modeling for an IH-PMQ accelerator tank - electromagnetic computations, beam-dynamics simulations, and thermal-stress analysis - are presented. H-PMQ structures following a short RFQ accelerator can be used in the front end of ion linacs or in stand-alone applications like a compact mobile deuteron-beam accelerator up to a few MeV. (2) A large-acceptance high-gradient linac for accelerating low-energy muons in a strong solenoidal magnetic field. When a proton beam hits a target, many low-energy pions are produced almost isotropically, in addition to a small number of high-energy pions in the forward direction. We propose to collect and accelerate copious muons created as the low-energy pions decay. The acceleration should bring muons to a kinetic energy of similar to 200 MeV in about 10 m, where both an ionization cooling of the muon beam and its further acceleration in a superconducting linac become feasible. One potential solution is a normal-conducting linac consisting of independently fed 0-mode RF cavities with wide apertures closed by thin metal windows or grids. The guiding magnetic field is provided by external superconducting solenoids. The cavity choice, overall linac design considerations, and simulation results of muon acceleration are presented. Potential applications range from basic research to homeland defense to industry and medicine.
C1 Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Kurennoy, SS (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA.
OI Kurennoy, Sergey/0000-0003-2854-9647
NR 14
TC 0
Z9 0
U1 0
U2 1
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0891-3
J9 AIP CONF PROC
PY 2011
VL 1336
BP 33
EP 38
DI 10.1063/1.3586052
PG 6
WC Physics, Applied
SC Physics
GA BZT55
UT WOS:000302912900006
ER
PT S
AU Havener, CC
Draganic, IN
Andrianarijaona, VM
AF Havener, C. C.
Draganic, I. N.
Andrianarijaona, V. M.
BE McDaniel, FD
Doyle, BL
TI Exploring Low Energy Molecular Ion Reactions With Merged Beams
SO APPLICATION OF ACCELERATORS IN RESEARCH AND INDUSTRY: TWENTY-FIRST
INTERNATIONAL CONFERENCE
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 21st International Conference on Application of Accelerators in Research
and Industry (CAARI)
CY AUG 08-13, 2010
CL Ft Worth, TX
SP Univ N Texas, Sandia Natl Labs, Los Alamos Natl Lab, AccSys Technol Inc, High Voltage Engn Europa BV, Natl Electrostat Corp, TDK-Lambda Amer
DE Molecular ion; merged beams; low energy; charge transfer
ID CHARGE-TRANSFER; COLLISIONS
AB Charge transfer (CT) in molecular ion-neutral interactions can proceed through dynamically coupled electronic, vibrational, and rotational degrees of freedom. Using the upgraded Oak Ridge National Laboratory ion-atom merged-beams apparatus, absolute direct charge transfer is explored from keV/u collision energies where the collision is considered "ro-vibrationally frozen" to sub-eV/u collision energies where collision times are long enough to sample vibrational and rotational modes. Our first molecular ion measurement with the merged-beams apparatus has been performed for D-2(+) + H and is used to benchmark high energy sudden approximation theory and vibrational specific adiabatic theory for the (H-2-H)(+) complex. CT measurements have also been performed for D-3(+) + H from 2 eV/u to 2 keV/u and CO+ + D from 20 eV/u to 2000 eV/u. With straightforward improvements to the apparatus, we plan to extend our measurements to key "destructive" rate coefficients for H-2(+) and CH+ with H at temperatures relevant to the interstellar medium.
C1 [Havener, C. C.; Draganic, I. N.] Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA.
[Andrianarijaona, V. M.] Pacific Union Coll, Dept Phys, Angwin, CA 94508 USA.
RP Havener, CC (reprint author), Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA.
FU Office of Fusion Energy Sciences; Division of Chemical Sciences;
Geosciences, and Biosciences; Office of Basic Energy Sciences; U.S.
Department of Energy; NASA [NNH07ZDA001N]; ORNL; Oak Ridge Institute for
Science and Education; Oak Ridge National Laboratory
FX Research supported by the Office of Fusion Energy Sciences and the
Division of Chemical Sciences, Geosciences, and Biosciences, Office of
Basic Energy Sciences of the U.S. Department of Energy. I.N.D is
supported by the NASA Solar & Heliospheric Physics Program NNH07ZDA001N
and acknowledges support from the ORNL Postdoctorial Research Associates
Program administered jointly by the Oak Ridge Institute for Science and
Education and Oak Ridge National Laboratory
NR 16
TC 1
Z9 1
U1 0
U2 1
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0891-3
J9 AIP CONF PROC
PY 2011
VL 1336
BP 101
EP 105
DI 10.1063/1.3586066
PG 5
WC Physics, Applied
SC Physics
GA BZT55
UT WOS:000302912900020
ER
PT S
AU Draganic, IN
Seely, DG
McCammon, D
Havener, CC
AF Draganic, I. N.
Seely, D. G.
McCammon, D.
Havener, C. C.
BE McDaniel, FD
Doyle, BL
TI Solar Wind Charge Exchange Studies Of Highly Charged Ions On Atomic
Hydrogen
SO APPLICATION OF ACCELERATORS IN RESEARCH AND INDUSTRY: TWENTY-FIRST
INTERNATIONAL CONFERENCE
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 21st International Conference on Application of Accelerators in Research
and Industry (CAARI)
CY AUG 08-13, 2010
CL Ft Worth, TX
SP Univ N Texas, Sandia Natl Labs, Los Alamos Natl Lab, AccSys Technol Inc, High Voltage Engn Europa BV, Natl Electrostat Corp, TDK-Lambda Amer
DE Charge exchange; highly charged ions; atomic beams; merged beams; solar
wind
ID X-RAY-EMISSION; MERGED-BEAMS MEASUREMENTS; CAPTURE CROSS-SECTIONS;
ELECTRON-CAPTURE; ENERGY; SPECTRA; COLLISIONS; ABSOLUTE; IMPACT; COMETS
AB Accurate studies of low-energy charge exchange (CX) are critical to understanding underlying soft X-ray radiation processes in the interaction of highly charged ions from the solar wind with the neutral atoms and molecules in the heliosphere, cometary comas, planetary atmospheres, interstellar winds, etc.. Particularly important are the CX cross sections for bare, H-like, and He-like ions of C, N, O and Ne, which are the dominant charge states for these heavier elements in the solar wind. Absolute total cross sections for single electron capture by H-like ions of C, N, O and fully-stripped O ions from atomic hydrogen have been measured in an expanded range of relative collision energies (5 eV/u - 20 keV/u) and compared to previous H-oven measurements. The present measurements are performed using a merged-beams technique with intense highly charged ion beams extracted from a 14.5 GHz ECR ion source installed on a high voltage platform at the Oak Ridge National Laboratory. For the collision energy range of 0.3 keV/u - 3.3 keV/u, which corresponds to typical ion velocities in the solar wind, the new measurements are in good agreement with previous H-oven measurements. The experimental results are discussed in detail and compared with theoretical calculations where available.
C1 [Draganic, I. N.; Havener, C. C.] Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA.
[Seely, D. G.] Albion Coll, Dept Phys, Albion, MI 49224 USA.
[McCammon, D.] Univ Wisconsin, Dept Phys, Madison, WI 53706 USA.
RP Draganic, IN (reprint author), Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA.
FU NASA Solar & Heliospheric Physics [NNH07ZDA001N]; Office of Fusion
Energy Sciences; Division of Chemical Science; Geosciences, and
Biosciences; Office of Basic Energy Sciences; U.S. Department of Energy
FX This research is supported by the NASA Solar & Heliospheric Physics
Program NNH07ZDA001N, the Office of Fusion Energy Sciences and the
Division of Chemical Sciences, Geosciences, and Biosciences, Office of
Basic Energy Sciences of the U.S. Department of Energy. One of the
authors (I.D.) gratefully acknowledges support from the ORNL
Postdoctoral Research Associates Program administered jointly by the Oak
Ridge Institute for Science and Education and Oak Ridge National
Laboratory.
NR 39
TC 0
Z9 0
U1 0
U2 0
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0891-3
J9 AIP CONF PROC
PY 2011
VL 1336
BP 106
EP 110
DI 10.1063/1.3586067
PG 5
WC Physics, Applied
SC Physics
GA BZT55
UT WOS:000302912900021
ER
PT S
AU Schultz, DR
Ovchinnikov, SY
Sternberg, JB
Macek, JH
AF Schultz, D. R.
Ovchinnikov, S. Y.
Sternberg, J. B.
Macek, J. H.
BE McDaniel, FD
Doyle, BL
TI Recent Applications Of The Lattice, Time-Dependent Schrodinger Equation
Approach For Ion-Atom Collisions
SO APPLICATION OF ACCELERATORS IN RESEARCH AND INDUSTRY: TWENTY-FIRST
INTERNATIONAL CONFERENCE
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 21st International Conference on Application of Accelerators in Research
and Industry (CAARI)
CY AUG 08-13, 2010
CL Ft Worth, TX
SP Univ N Texas, Sandia Natl Labs, Los Alamos Natl Lab, AccSys Technol Inc, High Voltage Engn Europa BV, Natl Electrostat Corp, TDK-Lambda Amer
DE ion-atom collisions
ID OPTIMIZED DYNAMICAL REPRESENTATION; QUANTUM PROBLEMS; DISTRIBUTIONS;
HYDROGEN; HE
AB Contemporary computational methods, such as the lattice, time-dependent Schrodinger equation (LTDSE) approach, have opened opportunities to study ion-atom collisions at a new level of detail and to uncover unexpected phenomena. Such interactions within gaseous, plasma, and material environments are fundamental to diverse applications such as low temperature plasma processing of materials, magnetic confinement fusion, and astrophysics. Results are briefly summarized here stemming from recent use of the LTDSE approach, with particular emphasis on elucidation of unexpected vortices in the ejected electron spectrum in ion-atom collisions and for an atom subject to an electric field pulse.
C1 [Schultz, D. R.; Macek, J. H.] Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA.
[Ovchinnikov, S. Y.; Sternberg, J. B.; Macek, J. H.] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37496 USA.
RP Schultz, DR (reprint author), Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA.
RI Ovchinnikov, Serguei/C-4994-2014
FU Office of Basic Energy Sciences and Office of Fusion Energy Sciences,
U.S. Department of Energy [DE-AC05-96-OR22464]; Oak Ridge National
Laboratory; Office of Basic Energy Sciences to the University of
Tennessee [DE-FG02-02ER15283]
FX Research was sponsored by the Office of Basic Energy Sciences and Office
of Fusion Energy Sciences, U.S. Department of Energy, under contract No.
DE-AC05-96-OR22464 with Oak Ridge National Laboratory, which is managed
by UT-Battelle, LLC, and by Grant No. DE-FG02-02ER15283 from the Office
of Basic Energy Sciences to the University of Tennessee.
NR 20
TC 1
Z9 1
U1 0
U2 2
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0891-3
J9 AIP CONF PROC
PY 2011
VL 1336
BP 123
EP 126
DI 10.1063/1.3586071
PG 4
WC Physics, Applied
SC Physics
GA BZT55
UT WOS:000302912900025
ER
PT S
AU Silver, E
Gillaspy, JD
Gokhale, P
Kanter, EP
Brickhouse, NS
Dunford, RW
Kirby, K
Lin, T
McDonald, J
Schneider, D
Seifert, S
Young, L
AF Silver, E.
Gillaspy, J. D.
Gokhale, P.
Kanter, E. P.
Brickhouse, N. S.
Dunford, R. W.
Kirby, K.
Lin, T.
McDonald, J.
Schneider, D.
Seifert, S.
Young, L.
BE McDaniel, FD
Doyle, BL
TI Work Towards Experimental Evidence Of Hard X-Ray Photoionization In
Highly Charged Krypton
SO APPLICATION OF ACCELERATORS IN RESEARCH AND INDUSTRY: TWENTY-FIRST
INTERNATIONAL CONFERENCE
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 21st International Conference on Application of Accelerators in Research
and Industry (CAARI)
CY AUG 08-13, 2010
CL Ft Worth, TX
SP Univ N Texas, Sandia Natl Labs, Los Alamos Natl Lab, AccSys Technol Inc, High Voltage Engn Europa BV, Natl Electrostat Corp, TDK-Lambda Amer
DE x-rays; photoionization; spectroscopy; EBIT; synchrotron
AB Ions of almost any charge state can be produced through electron-impact ionization. Here we describe our first experiments designed to photoionize these highly charged ions with hard x-rays by pairing an electron and photon beam. A spectral line at 12.7(1) keV with an intensity corroborated by theory may be the first evidence of hard x-ray photoionization of a highly charged ion.
C1 [Silver, E.; Brickhouse, N. S.; Kirby, K.; Lin, T.] Harvard Smithsonian Ctr Astrophys, 60 Garden St, Cambridge, MA 02138 USA.
[Gillaspy, J. D.; Gokhale, P.] NIST, Gaithersburg, MD 20899 USA.
[Kanter, E. P.; Dunford, R. W.; Seifert, S.; Young, L.] Argonne Natl Lab, Argonne, IL 60439 USA.
[McDonald, J.] George E Wahle, Dept Veterans Affairs Med Ctr, Salt Lake City, UT 84148 USA.
[Schneider, D.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
RP Silver, E (reprint author), Harvard Smithsonian Ctr Astrophys, 60 Garden St, Cambridge, MA 02138 USA.
OI Brickhouse, Nancy/0000-0002-8704-4473
FU NASA [NNX08AK33G]; Argonne National Laboratory LDRD
FX This work was supported by NASA Grant NNX08AK33G and an Argonne National
Laboratory LDRD grant.
NR 9
TC 3
Z9 3
U1 0
U2 4
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0891-3
J9 AIP CONF PROC
PY 2011
VL 1336
BP 146
EP 149
DI 10.1063/1.3586076
PG 4
WC Physics, Applied
SC Physics
GA BZT55
UT WOS:000302912900030
ER
PT S
AU Park, JH
Krstic, PS
AF Park, Jae Hyun
Krstic, Predrag S.
BE McDaniel, FD
Doyle, BL
TI Control Of Screening Of A Charged Particle In Electrolytic Aqueous Paul
Trap
SO APPLICATION OF ACCELERATORS IN RESEARCH AND INDUSTRY: TWENTY-FIRST
INTERNATIONAL CONFERENCE
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 21st International Conference on Application of Accelerators in Research
and Industry (CAARI)
CY AUG 08-13, 2010
CL Ft Worth, TX
SP Univ N Texas, Sandia Natl Lab, Los Alamos Natl Labs, AccSys Technol Inc, High Voltage Engn Europa BV, Natl Electrostat Corp, TDK-Lambda Amer
DE Aqueous Paul trap; electrolyte screening; electrophoretic; molecular
dynamics
AB Individual charged particles could be trapped and confined by the combined radio-frequency and DC quadrupole electric field of an aqueous Paul trap. Viscosity of water improves confinement and extends the range of the trap parameters which characterize the stability of the trap. Electrolyte, if present in aqueous solution, may screen the charged particle and thus partially or fully suppress electrophoretic interaction with the applied filed, possibly reducing it to a generally much weaker dielectrophoretic interaction with an induced dipole. Applying molecular dynamics simulation we show that the quadrupole field has a different effect at the electrolyte ions and at much heavier charged particle, effectively eliminating the screening by electrolyte ions and reinstating the electrophoretic confinement.
C1 [Park, Jae Hyun; Krstic, Predrag S.] Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA.
RP Park, JH (reprint author), Oak Ridge Natl Lab, Div Phys, POB 2008, Oak Ridge, TN 37831 USA.
FU NHGRI NIH HHS [RC2 HG005625, R21 HG004764, R21 HG004764-01]
NR 10
TC 1
Z9 1
U1 0
U2 0
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0891-3
J9 AIP CONF PROC
PY 2011
VL 1336
BP 150
EP 153
DI 10.1063/1.3586077
PG 4
WC Physics, Applied
SC Physics
GA BZT55
UT WOS:000302912900031
PM 24839332
ER
PT S
AU Jokela, SJ
Veryovkin, IV
Zinovev, AV
Elam, JW
Peng, Q
Mane, AU
AF Jokela, Slade J.
Veryovkin, Igor V.
Zinovev, Alexander V.
Elam, Jeffrey W.
Peng, Qing
Mane, Anil U.
BE McDaniel, FD
Doyle, BL
TI The Characterization Of Secondary Electron Emitters For Use In Large
Area Photo-Detectors
SO APPLICATION OF ACCELERATORS IN RESEARCH AND INDUSTRY: TWENTY-FIRST
INTERNATIONAL CONFERENCE
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 21st International Conference on Application of Accelerators in Research
and Industry (CAARI)
CY AUG 08-13, 2010
CL Ft Worth, TX
SP Univ N Texas, Sandia Natl Labs, Los Alamos Natl Lab, AccSys Technol Inc, High Voltage Engn Europa BV, Natl Electrostat Corp, TDK-Lambda Amer
DE Secondary electron emission; Atomic Layer Deposition; Magnesium Oxide;
Aluminum Oxide; XPS
ID EMISSION; GROWTH; MG
AB The Large-Area Picosecond Photo-Detector Project is focused on the development of large-area systems to measure the time-of-arrival of relativistic particles with, ultimately, 1 pico-second resolution, and for signals typical of Positron-Emission Tomography (PET), a resolution of about 30 pico-seconds. Our contribution to this project is to help with identification and efficient fabrication of novel electron emitting materials with properties optimized for use in such detectors. We have assembled several techniques into a single ultra-high vacuum apparatus in order to enable characterization of both photocathode and secondary electron emission (SEE) materials. This apparatus will examine how photocathode quantum efficiency and SEE material electron yield correlate to surface chemical composition, state, and band structure. The techniques employed in this undertaking are X-ray photoelectron spectroscopy (XPS) for surface chemical composition, ultraviolet photoelectron spectroscopy (UPS) for the determination of band structure and surface work function, as well surface cleaning techniques such as argon-ion sputtering. To determine secondary electron emission yields and quantum efficiencies of detector materials, we use electron optics from a low energy electron diffraction (LEED) system whose set of hemispherical electrodes allows for efficient collection of secondary and photo electrons. As we gain a stronger insight into the details of mechanisms of electron emission from photocathodes and SEE materials, we will be able to lay a foundation for the larger collaborative effort to design the next generation of large-area photo-detectors. We present our preliminary results on the SEE materials from our as-yet completed characterization system.
C1 [Jokela, Slade J.; Veryovkin, Igor V.; Zinovev, Alexander V.] Argonne Natl Lab, Div Mat Sci, 9700 S Cass Ave,Bldg 200, Argonne, IL 60439 USA.
[Elam, Jeffrey W.; Peng, Qing; Mane, Anil U.] Argonne Natl Lab, Energy Syst, Argonne, IL 60439 USA.
RP Jokela, SJ (reprint author), Argonne Natl Lab, Div Mat Sci, 9700 S Cass Ave,Bldg 200, Argonne, IL 60439 USA.
RI peng, qing/I-2970-2013
FU U.S. Department of Energy Office of Science laboratory
[DE-AC02-06CH11357]; American Recover and Relief Act (ARRA)
FX The submitted manuscript has been created by UChicago Argonne, LLC,
Operator of Argonne National Laboratory (Argonne). Argonne, a U.S.
Department of Energy Office of Science laboratory, is operated under
Contract No. DE-AC02-06CH11357. The U.S. Government retains for itself,
and others acting on its behalf, a paid-up nonexclusive, irrevocable
worldwide license in said article to reproduce, prepare derivative
works, distribute copies to the public, and perform publicly and display
publicly, by or on behalf of the Government. This work was supported in
part by American Recover and Relief Act (ARRA) funds.
NR 9
TC 6
Z9 6
U1 0
U2 6
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0891-3
J9 AIP CONF PROC
PY 2011
VL 1336
BP 208
EP 212
DI 10.1063/1.3586090
PG 5
WC Physics, Applied
SC Physics
GA BZT55
UT WOS:000302912900044
ER
PT S
AU AlFaify, S
Garratt, E
Dissanayake, A
Mancini, DC
Kayani, A
AF AlFaify, S.
Garratt, E.
Dissanayake, A.
Mancini, D. C.
Kayani, A.
BE McDaniel, FD
Doyle, BL
TI Ion Beam Analysis Of Nitrogen Incorporated Ultrananocrystalline Diamond
(UNCD) Thin Films
SO APPLICATION OF ACCELERATORS IN RESEARCH AND INDUSTRY: TWENTY-FIRST
INTERNATIONAL CONFERENCE
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 21st International Conference on Application of Accelerators in Research
and Industry (CAARI)
CY AUG 08-13, 2010
CL Ft Worth, TX
SP Univ N Texas, Sandia Natl Labs, Los Alamos Natl Lab, AccSys Technol Inc, High Voltage Engn Europa BV, Natl Electrostat Corp, TDK-Lambda Amer
DE UNCD Film; MPCVD; Nanostructure; Nanocrystalline Diamond; RBS; NRA
ID GROWTH
AB Determination of the elemental composition is important to correlate the properties of nitrogen incorporated Ultrananocrystalline Diamond (UNCD) thin films with their growth conditions. Films were deposited by CVD deposition technology and nitrogen incorporation was introduced by diluting the growth Ar/CH4 plasma with N-2 gas. Deposition of UNCD thin films was carried out on tungsten (similar to 15nm) coated Si substrates with varying concentrations of N-2 diluted to the growth plasma. Scanning electron microscopy (SEM) and Raman spectroscopy (RS) were used to confirm the characteristic morphology of the UNCD film and its dominant sp(3) bonding respectively. The deposited films were smooth on the submicron scale with the RMS roughness value of 2.9-5.1 nm. Reflectometry spectroscopy analysis (RES) technique was used to measure the films thicknesses. To obtain the elemental composition of the UNCD thin films, Rutherford Backscattering Spectrometry (RBS), Non-Rutherford Backscattering Spectrometry (NRBS), Elastic Recoil Detection Analysis (ERDA) and Nuclear Reaction Analysis (NRA) were performed. Deposited UNCD films contained less than 5 at.% of H while N content incorporated in the films was estimated to be lower than 1 at.%. The intermixing region between the substrate and the film was found to be negligible. Moreover, amorphous phase as determined by Raman analysis was found to be increasing for the sample deposited with N-2.
C1 [AlFaify, S.; Garratt, E.; Dissanayake, A.; Kayani, A.] Western Michigan Univ, Dept Phys, Kalamazoo, MI 49008 USA.
[Mancini, D. C.] Argonne Natl Lab, Cent Nanoscale Mat, Argonne, IL 60439 USA.
RP AlFaify, S (reprint author), Western Michigan Univ, Dept Phys, Kalamazoo, MI 49008 USA.
FU U. S. Department of Energy, Office of Science, Office of Basic Energy
Sciences [DE AC02-06CH11357]
FX use of the Center for Nanoscale Materials was supported by the U. S.
Department of Energy, Office of Science, Office of Basic Energy
Sciences, under Contract No. DE AC02-06CH11357.
NR 16
TC 1
Z9 1
U1 0
U2 3
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0891-3
J9 AIP CONF PROC
PY 2011
VL 1336
BP 260
EP 263
DI 10.1063/1.3586100
PG 4
WC Physics, Applied
SC Physics
GA BZT55
UT WOS:000302912900054
ER
PT S
AU Kayani, A
Garratt, E
AlFaify, S
Dissanayake, A
Tecos, G
Mancini, DC
Syed, M
AF Kayani, A.
Garratt, E.
AlFaify, S.
Dissanayake, A.
Tecos, G.
Mancini, D. C.
Syed, M.
BE McDaniel, FD
Doyle, BL
TI Ion Beam Irradiation Studies Of Ultrananocrystalline Diamond (UNCD)
SO APPLICATION OF ACCELERATORS IN RESEARCH AND INDUSTRY: TWENTY-FIRST
INTERNATIONAL CONFERENCE
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 21st International Conference on Application of Accelerators in Research
and Industry (CAARI)
CY AUG 08-13, 2010
CL Ft Worth, TX
SP Univ N Texas, Sandia Natl Labs, Los Alamos Natl Lab, AccSys Technol Inc, High Voltage Engn Europa BV, Natl Electrostat Corp, TDK-Lambda Amer
DE Ion beam analysis; UNCD; nanocrystalline diamond; polycrystalline
diamond; ion beam irradiation
ID NANOCRYSTALLINE DIAMOND; RAMAN-SPECTROSCOPY; THIN-FILMS
AB Investigations into the effects of high-energy ion bombardment of ultrananocrystalline diamond (UNCD) thin films was performed using 3 and 6 MeV protons and 24 MeV F4+, with the fluence of 2.1 x 10(17) ions/cm(2), 2.9 x 10(17) ions/cm2, and 6.7 x 10(15) ions/cm(2) respectively. Objective of the research is to investigate the effect of structural damage on the physical properties of the material and compare it with the structure of unirradiated and N doped UNCD. Pre- and post-irradiated samples were analyzed by ion beam analysis (IBA) measurements, Raman spectroscopy, atomic force microscopy (AFM) and scanning electron microscopy (SEM). IBA measurements including Rutherford backscattering spectrometry (RBS), non-Rutherford backscattering spectrometry (NRBS) and elastic recoil detection analysis (ERDA) were used to determine elemental concentration of pre- and post-irradiated samples. Visible Raman spectra corresponding to samples irradiated at 3 and 6 MeV protons did not show much variation. For 24 MeV F4+ irradiated sample, significant changes were observed, particularly the loss of a shoulder at 1179 cm(-1) and sharpening of the G peak at around 1532 cm(-1), indicating possible significant changes at the grain boundary and increase in sp(2) phase. AFM measurements show a reduction in RMS roughness after bombardment possibly due to the graphitization of the UNCD surface. The results of IBA measurements did not show any change in the elemental concentration or interface region between film and substrate.
C1 [Kayani, A.; Garratt, E.; AlFaify, S.; Dissanayake, A.; Tecos, G.] Western Michigan Univ, Dept Phys, Kalamazoo, MI 49008 USA.
[Mancini, D. C.] Argonne Natl Lab, Cent Nanoscale Mat, Argonne, IL 60439 USA.
[Syed, M.] Rose Hulman Inst Technol, Terre Haute, IN 47803 USA.
RP Kayani, A (reprint author), Western Michigan Univ, Dept Phys, Kalamazoo, MI 49008 USA.
FU U. S. Department of Energy, Office of Science, Office of Basic Energy
Sciences [DE AC02-06CH11357]
FX Use of the Center for Nanoscale Materials (CNM) was supported by the U.
S. Department of Energy, Office of Science, Office of Basic Energy
Sciences, under Contract No. DE AC02-06CH11357.
NR 12
TC 0
Z9 0
U1 0
U2 3
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0891-3
J9 AIP CONF PROC
PY 2011
VL 1336
BP 271
EP 275
DI 10.1063/1.3586102
PG 5
WC Physics, Applied
SC Physics
GA BZT55
UT WOS:000302912900056
ER
PT S
AU Insepov, Z
Norem, J
Veitzer, S
AF Insepov, Zeke
Norem, Jim
Veitzer, Seth
BE McDaniel, FD
Doyle, BL
TI Ion Solid Interaction And Surface Modification At RF Breakdown In
High-Gradient Linacs
SO APPLICATION OF ACCELERATORS IN RESEARCH AND INDUSTRY: TWENTY-FIRST
INTERNATIONAL CONFERENCE
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 21st International Conference on Application of Accelerators in Research
and Industry (CAARI)
CY AUG 08-13, 2010
CL Ft Worth, TX
SP Univ N Texas, Sandia Natl Labs, Los Alamos Natl Lab, AccSys Technol Inc, High Voltage Engn Europa BV, Natl Electrostat Corp, TDK-Lambda Amer
DE Ion solid interaction; unipolar arc formation; high-gradient rf linear
accelerators; non-Debye plasma
ID SUPERDENSE GLOW; PSEUDOSPARK; EMISSION; ENERGY
AB Ion solid interactions have been shown to be an important new mechanism of unipolar arc formation in high-gradient rf linear accelerators through surface self-sputtering by plasma ions, in addition to an intense surface field evaporation. We believe a non-Debye plasma is formed in close vicinity to the surface and strongly affects surface atomic migration via intense bombardment by ions, strong electric field, and high surface temperature. Scanning electron microscope studies of copper surface of an rf cavity were conducted that show craters, arc pits, and both irregular and regular ripple structures with a characteristic length of 2 microns on the surface. Strong field enhancements are characteristic of the edges, corners, and crack systems at surfaces subjected to rf breakdown
C1 [Insepov, Zeke; Norem, Jim] Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA.
[Veitzer, Seth] Tech X Corp, Boulder, CO 80303 USA.
RP Insepov, Z (reprint author), Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA.
RI Insepov, Zinetula/L-2095-2013
OI Insepov, Zinetula/0000-0002-8079-6293
FU U.S. Dept. of Energy [DE-AC02-06CH11357]; U.S. Dept. of Energy under
Small Business Innovation Research [DE- FG02-07ER84833]
FX This work was supported by the U.S. Dept. of Energy under Contract
DE-AC02-06CH11357. The work of Tech-X personnel is funded by the U.S.
Dept. of Energy under Small Business Innovation Research Contract No.
DE- FG02-07ER84833.
NR 25
TC 0
Z9 0
U1 0
U2 1
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0891-3
J9 AIP CONF PROC
PY 2011
VL 1336
BP 345
EP 348
DI 10.1063/1.3586117
PG 4
WC Physics, Applied
SC Physics
GA BZT55
UT WOS:000302912900071
ER
PT S
AU Caporaso, GJ
Chen, YJ
Watson, JA
Blackfield, DT
Nelson, SD
Poole, BR
Stanley, JR
Sullivan, JS
AF Caporaso, George J.
Chen, Yu-Jiuan
Watson, James A.
Blackfield, Don T.
Nelson, Scott D.
Poole, Brian R.
Stanley, Joel R.
Sullivan, James S.
BE McDaniel, FD
Doyle, BL
TI Status Of The Dielectric Wall Accelerator For Proton Therapy
SO APPLICATION OF ACCELERATORS IN RESEARCH AND INDUSTRY: TWENTY-FIRST
INTERNATIONAL CONFERENCE
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 21st International Conference on Application of Accelerators in Research
and Industry (CAARI)
CY AUG 08-13, 2010
CL Ft Worth, TX
SP Univ N Texas, Sandia Natl Lab, Los Alamos Natl Labs, AccSys Technol Inc, High Voltage Engn Europa BV, Natl Electrostat Corp, TDK-Lambda Amer
DE Dielectric wall accelerators; hadron therapy; proton therapy; high
gradient insulators; photoconductive switches; alternating phase
focusing; alternating gradient quadrupole focusing
AB The Dielectric Wall Accelerator (DWA) offers the potential to produce a high gradient linear accelerator for proton therapy and other applications. The current status of the DWA for proton therapy will be reviewed. Recent progress in SiC photoconductive switch development will be presented. There are serious beam transport challenges in the DWA arising from short pulse excitation of the wall. Solutions to these transport difficulties will be discussed.
C1 [Caporaso, George J.; Chen, Yu-Jiuan; Watson, James A.; Blackfield, Don T.; Nelson, Scott D.; Poole, Brian R.; Stanley, Joel R.; Sullivan, James S.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
RP Caporaso, GJ (reprint author), Lawrence Livermore Natl Lab, POB 808,L-410, Livermore, CA 94551 USA.
NR 7
TC 3
Z9 3
U1 0
U2 3
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0891-3
J9 AIP CONF PROC
PY 2011
VL 1336
BP 369
EP 373
DI 10.1063/1.3586122
PG 5
WC Physics, Applied
SC Physics
GA BZT55
UT WOS:000302912900076
ER
PT S
AU Yasui, L
Gladden, S
Andorf, C
Kroc, T
AF Yasui, Linda
Gladden, Samantha
Andorf, Christine
Kroc, Thomas
BE McDaniel, FD
Doyle, BL
TI Fast Neutron Induced Autophagy Leads To Necrosis In Glioblastoma
Multiforme Cells
SO APPLICATION OF ACCELERATORS IN RESEARCH AND INDUSTRY: TWENTY-FIRST
INTERNATIONAL CONFERENCE
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 21st International Conference on Application of Accelerators in Research
and Industry (CAARI)
CY AUG 08-13, 2010
CL Ft Worth, TX
SP Univ N Texas, Sandia Natl Labs, Los Alamos Natl Lab, AccSys Technol Inc, High Voltage Engn Europa BV, Natl Electrostat Corp, TDK-Lambda Amer
DE fast neutrons; glioblastoma multiforme; necrosis; autophagy; radiation
therapy
ID CANCER; DEATH; ASTROCYTOMAS; THERAPY
AB Fast neutrons are highly effective at killing glioblastoma multiforme (GBM), U87 and U251 cells. The mode of cell death was investigated using transmission electron microscopy (TEM) to identify the fraction of irradiated U87 or U251 cells having morphological features of autophagy and/or necrosis. U87 or U251 cells were irradiated with 2 Gy fast neturons or 10 Gy gamma rays. A majority of U87 and U251 cells exhibit features of cell death with autophagy after irradiation with either 10 Gy gamma rays or 2 Gy fast neutrons. Very few gamma irradiated cells had features of necrosis (U87 or U251 cell samples processed for TEM 1 day after 10 Gy gamma irradiation). In contrast, a significant increase was observed in necrotic U87 and U251 cells irradiated with fast neutrons. These results show a greater percentage of cells exhibit morphological evidence of necrosis induced by a lower dose of fast neutron irradiation compared to gamma irradiation. Also, the evidence of necrosis in fast neutron irradiated U87 and U251 cells occurs in a background of autophagy. Since autophagy is observed before necrosis, autophagy may play a role in signaling programmed necrosis in fast neutron irradiated U87 and U251 cells.
C1 [Yasui, Linda; Gladden, Samantha] Northern Illinois Univ, Dept Biol Sci, De Kalb, IL 60115 USA.
[Andorf, Christine] Fermilab Natl Accelerator Lab, Northern Illinois Inst Neutron Therapy, Batavia, IL 60510 USA.
[Kroc, Thomas] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
RP Yasui, L (reprint author), Northern Illinois Univ, Dept Biol Sci, De Kalb, IL 60115 USA.
NR 28
TC 1
Z9 1
U1 0
U2 1
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0891-3
J9 AIP CONF PROC
PY 2011
VL 1336
BP 377
EP 382
DI 10.1063/1.3586124
PG 6
WC Physics, Applied
SC Physics
GA BZT55
UT WOS:000302912900078
ER
PT S
AU Pogorelsky, IV
Babzien, M
Polyanskiy, MN
Yakimenko, V
Dover, NP
Palmer, CAJ
Najmudin, Z
Shkolnikov, P
Williams, O
Rosenzweig, J
Oliva, P
Carpinelli, M
Golosio, B
Delogu, P
Stefanini, A
Endrizzi, M
AF Pogorelsky, I. V.
Babzien, M.
Polyanskiy, M. N.
Yakimenko, V.
Dover, N. P.
Palmer, C. A. J.
Najmudin, Z.
Shkolnikov, P.
Williams, O.
Rosenzweig, J.
Oliva, P.
Carpinelli, M.
Golosio, B.
Delogu, P.
Stefanini, A.
Endrizzi, M.
BE McDaniel, FD
Doyle, BL
TI Lasers As Particle Accelerators In Medicine: From Laser-Driven Protons
To Imaging With Thomson Sources
SO APPLICATION OF ACCELERATORS IN RESEARCH AND INDUSTRY: TWENTY-FIRST
INTERNATIONAL CONFERENCE
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 21st International Conference on Application of Accelerators in Research
and Industry (CAARI)
CY AUG 08-13, 2010
CL Ft Worth, TX
SP Univ N Texas, Sandia Natl Labs, Los Alamos Natl Lab, AccSys Technol Inc, High Voltage Engn Europa BV, Natl Electrostat Corp, TDK-Lambda Amer
DE CO2 laser; ion acceleration; Thomson scattering; electron beams; cancer
therapy; x-ray imaging
ID PULSES
AB We report our recent progress using a high-power, picosecond CO2 laser for Thomson scattering and ion acceleration experiments. These experiments capitalize on certain advantages of long-wavelength CO2 lasers, such as their high number of photons per energy unit and beneficial wavelength-scaling of the electrons' ponderomotive energy and critical plasma frequency. High X-ray fluxes produced in the interactions of the counter-propagating laser-and electron-beams for obtaining single-shot, high-contrast images of biological objects. The laser, focused on a hydrogen jet, generated a monoenergetic proton beam via the radiation-pressure mechanism. The energy of protons produced by this method scales linearly with the laser's intensity. We present a plan for scaling the process into the range of 100-MeV proton energy via upgrading the CO2 laser. This development will enable an advance to the laser-driven proton cancer therapy.
C1 [Pogorelsky, I. V.; Babzien, M.; Polyanskiy, M. N.; Yakimenko, V.] Brookhaven Natl Lab, Accelerator Test Facil, Upton, NY 11973 USA.
[Dover, N. P.; Palmer, C. A. J.; Najmudin, Z.] Imperial Coll London, Blackett Lab, London SW7 2BW, England.
[Shkolnikov, P.] State Univ New York, New York, NY 11794 USA.
[Williams, O.; Rosenzweig, J.] Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA.
[Oliva, P.; Carpinelli, M.; Golosio, B.] Univ Sassari, Struttura Dipartimentale Matemat & Fis, I-07100 Sassari, Italy.
[Delogu, P.; Stefanini, A.] Univ Pisa, Dipartimento Fis E Fermi, I-56127 Pisa, Italy.
[Delogu, P.; Stefanini, A.] INFN, I-56127 Pisa, Italy.
[Oliva, P.; Carpinelli, M.; Golosio, B.] INFN, I-07100 Pisa, Italy.
RP Pogorelsky, IV (reprint author), Brookhaven Natl Lab, Accelerator Test Facil, Upton, NY 11973 USA.
RI Delogu, Pasquale/J-3141-2012; Endrizzi, Marco/O-7463-2015; Polyanskiy,
Mikhail/E-8406-2010;
OI Oliva, Piernicola/0000-0002-9446-3967; Endrizzi,
Marco/0000-0002-7810-2301; Golosio, Bruno/0000-0001-5144-6932
FU US DOE [DE-FG02-07ER41488, DE-FG03-92ER40693]; Libra Basic Technology
Consortium; ONR [140810463]
FX The authors thank D. Neely, J. Schreiber, G.Dudnikova, M. Ispirian, G.
Andonian, E. Hemsinga,G. Priebe, K. Kusche, J. Park, and D. Davis for
assisting in the reported research, supported by US DOE Grant
DE-FG02-07ER41488, US DOE Grant DE-FG03-92ER40693, Libra Basic
Technology Consortium and ONR Grant 140810463.
NR 12
TC 0
Z9 0
U1 3
U2 6
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0891-3
J9 AIP CONF PROC
PY 2011
VL 1336
BP 386
EP 390
DI 10.1063/1.3586126
PG 5
WC Physics, Applied
SC Physics
GA BZT55
UT WOS:000302912900080
ER
PT S
AU Dioszegi, I
Rusek, A
Dane, BR
Chiang, IH
Meek, AG
Dilmanian, FA
AF Dioszegi, I.
Rusek, A.
Dane, B. R.
Chiang, I. H.
Meek, A. G.
Dilmanian, F. A.
BE McDaniel, FD
Doyle, BL
TI Monte Carlo Simulations Of The Dose Distributions From Carbon Microbeams
Used In An Experimental Radiation Therapy Method
SO APPLICATION OF ACCELERATORS IN RESEARCH AND INDUSTRY: TWENTY-FIRST
INTERNATIONAL CONFERENCE
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 21st International Conference on Application of Accelerators in Research
and Industry (CAARI)
CY AUG 08-13, 2010
CL Ft Worth, TX
SP Univ N Texas, Sandia Natl Labs, Los Alamos Natl Lab, AccSys Technol Inc, High Voltage Engn Europa BV, Natl Electrostat Corp, TDK-Lambda Amer
DE Monte Carlo simulation; MCNPX; Carbon radiotherapy; microbeam
ID ION RADIOTHERAPY; BEAM
AB Recent upgrades of the MCNPX Monte Carlo code include transport of heavy ions. We employed the new code to simulate the energy and dose distributions produced by carbon beams in rabbit's head in and around a brain tumor. The work was within our experimental technique of interlaced carbon microbeams, which uses two 90 degrees arrays of parallel, thin planes of carbon beams (microbeams) interlacing to produce a solid beam at the target. A similar version of the method was earlier developed with synchrotron-generated x-ray microbeams. We first simulated the Bragg peak in high density polyethylene and other materials, where we could compare the calculated carbon energy deposition to the measured data produced at the NASA Space Radiation Laboratory (NSRL) at Brookhaven National Laboratory (BNL). The results showed that new MCNPX code gives a reasonable account of the carbon beam's dose up to similar to 200 MeV/nucleon beam energy. At higher energies, which were not relevant to our project, the model failed to reproduce the Bragg-peak's extent of increasing nuclear breakup tail. In our model calculations we determined the dose distribution along the beam path, including the angular straggling of the microbeams, and used the data for determining the optimal values of beam spacing in the array for producing adequate beam interlacing at the target. We also determined, for the purpose of Bragg-peak spreading at the target, the relative beam intensities of the consecutive exposures with stepwise lower beam energies, and simulated the resulting dose distribution in the spread out Bragg-peak. The details of the simulation methods used and the results obtained are presented.
C1 [Dioszegi, I.] Brookhaven Natl Lab, Nonproliferat & Natl Secur Dept, Upton, NY 11973 USA.
[Rusek, A.; Chiang, I. H.] NASA, Brookhaven Natl Lab, Space Radiat Lab, Upton, NY 11973 USA.
[Dane, B. R.] SUNY Stony Brook, Sch Med, Stony Brook, NY 11794 USA.
[Meek, A. G.; Dilmanian, F. A.] SUNY Stony Brook, Dept Radiat Oncol, Stony Brook, NY 11794 USA.
[Dilmanian, F. A.] Brookhaven Natl Lab, Med Dept, Upton, NY 11973 USA.
RP Dioszegi, I (reprint author), Brookhaven Natl Lab, Nonproliferat & Natl Secur Dept, Upton, NY 11973 USA.
FU Musella Brain Tumor Foundation; SB's Targeted Research Opportunities
program; SB's Office of the Dean of School of Medicine; SB's Research
Foundation funds; Voices against Brain Cancer
FX We thank Joseph Gatz III, Charles Pearson, and Michael Sivertz for
assistance. Funding for this work was provided by Musella Brain Tumor
Foundation, SBs Targeted Research Opportunities program, SBs Office of
the Dean of School of Medicine, SBs Research Foundation funds (Allen G.
Meek, MD, PI), and Voices against Brain Cancer.
NR 8
TC 1
Z9 1
U1 0
U2 3
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0891-3
J9 AIP CONF PROC
PY 2011
VL 1336
BP 406
EP 409
DI 10.1063/1.3586130
PG 4
WC Physics, Applied
SC Physics
GA BZT55
UT WOS:000302912900084
ER
PT S
AU Chen, AX
Antolak, AJ
Leung, KN
Raber, TN
Morse, DH
AF Chen, A. X.
Antolak, A. J.
Leung, K. -N.
Raber, T. N.
Morse, D. H.
BE McDaniel, FD
Doyle, BL
TI Compact Electronic Gamma Source For Radiotherapy
SO APPLICATION OF ACCELERATORS IN RESEARCH AND INDUSTRY: TWENTY-FIRST
INTERNATIONAL CONFERENCE
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 21st International Conference on Application of Accelerators in Research
and Industry (CAARI)
CY AUG 08-13, 2010
CL Ft Worth, TX
SP Univ N Texas, Sandia Natl Labs, Los Alamos Natl Lab, AccSys Technol Inc, High Voltage Engn Europa BV, Natl Electrostat Corp, TDK-Lambda Amer
DE LiTaO3 pyroelectric accelerator; gamma generator; RF ion source;
9Be(D,ng)10B reaction; radiotherapy
AB A compact mono-energetic gamma source is being developed to replace the radiological sources used in radiotherapy and other medical instruments. The electronic gamma source utilizes low-energy nuclear reactions to generate gammas in the 0.5 to 1.0 MeV energy range. Independent control of the ion current and energy is achieved by decoupling the RF-driven ion source and pyroelectric crystal-based acceleration systems The ions are accelerated to voltages above 100 keV and bombard a reaction target to produce gammas. Thermal management of the pyroelectric crystal-based accelerator is achieved by convective dielectric fluid flow around the crystal. This approach provides better temperature uniformity in the crystal and higher dielectric strength for suppressing voltage breakdown and enabling faster thermal cycling rates.
C1 [Chen, A. X.; Antolak, A. J.; Raber, T. N.; Morse, D. H.] Sandia Natl Labs, POB 969, Livermore, CA 94550 USA.
[Chen, A. X.] Univ Calif Berkeley, Dept Mech Engn, Berkeley, CA 94720 USA.
[Leung, K. -N.] Univ Calif Berkeley, Dept Nucl Engn, Berkeley, CA 94720 USA.
RP Chen, AX (reprint author), Sandia Natl Labs, POB 969, Livermore, CA 94550 USA.
FU Office of Nonproliferation Research and Development [DOE/NA-22]; U.S.
Department of Energy's National Nuclear Security [DE-AC04-94AL85000]
FX The author would like to thank Professor Ralph Greif and Samuel S. Mao
for useful discussions. This work was funded by DOE/NA-22 Office of
Nonproliferation Research and Development. Sandia National Laboratories
is a multi-program laboratory operated by Sandia Corporation, a wholly
owned subsidiary of Lockheed Martin Company, for the U.S. Department of
Energy's National Nuclear Security Administration under contract
DE-AC04-94AL85000.
NR 8
TC 2
Z9 2
U1 0
U2 1
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0891-3
J9 AIP CONF PROC
PY 2011
VL 1336
BP 413
EP 417
DI 10.1063/1.3586132
PG 5
WC Physics, Applied
SC Physics
GA BZT55
UT WOS:000302912900086
ER
PT S
AU Weidner, JW
Nortier, FM
Bach, HT
John, KD
Couture, A
Ullmann, JL
Fassbender, ME
Goff, GS
Taylor, W
Valdez, F
Wolfsberg, LE
Cisneros, M
Dry, D
Gallegos, M
Gritzo, R
Bitteker, LJ
Wender, S
Baty, RS
AF Weidner, J. W.
Nortier, F. M.
Bach, H. T.
John, K. D.
Couture, A.
Ullmann, J. L.
Fassbender, M. E.
Goff, G. S.
Taylor, W.
Valdez, F.
Wolfsberg, L. E.
Cisneros, M.
Dry, D.
Gallegos, M.
Gritzo, R.
Bitteker, L. J.
Wender, S.
Baty, R. S.
BE McDaniel, FD
Doyle, BL
TI Accelerator Production of Ac-225 For Alpha-Immunotherapy
SO APPLICATION OF ACCELERATORS IN RESEARCH AND INDUSTRY: TWENTY-FIRST
INTERNATIONAL CONFERENCE
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 21st International Conference on Application of Accelerators in Research
and Industry (CAARI)
CY AUG 08-13, 2010
CL Ft Worth, TX
SP Univ N Texas, Sandia Natl Lab, Los Alamos Natl Labs, AccSys Technol Inc, High Voltage Engn Europa BV, Natl Electrostat Corp, TDK-Lambda Amer
DE Ac-225; cross section; alpha-emitter; cancer; Th-232
AB Ac-225 has tremendous potential for the treatment of metastatic cancer due to the four alpha-particles emitted during its decay to stable Bi-209. Additionally, it is one of the few alpha-emitters being considered for clinical trials. The anticipated Ac-225 demand for these trials is expected to far exceed the annual worldwide supply of approximately 1,000 mCi/yr. Consequently, the DOE Office of Science has funded investigations into accelerator-based production of Ac-225. Existing Th-232(p,x)Ac-225 cross section data indicate that up to 480 mCi/day of Ac-225 could be created by bombarding a thick target of natural thorium with 100 MeV protons at the Los Alamos Isotope Production Facility. To verify these predictions, experiments are underway at the Los Alamos Neutron Science Center to measure the Th-232(p,x) Ac-225 production cross sections for protons in the energy range 40-200 MeV, and at 800 MeV. For 800 MeV protons, preliminary results indicate that the Ac-225 production cross section is 12.4 +/- 0.6 mb and the Ra-225 production cross section is 3.2 +/- 0.2 mb. Moreover, preliminary results suggest that the Ac-227 production cross section is 16 +/- 1 mb. Experiments to measure these same cross sections at proton energies below 200 MeV are planned for the last half of calendar year 2010.
C1 [Weidner, J. W.; Nortier, F. M.; Bach, H. T.; John, K. D.; Couture, A.; Ullmann, J. L.; Fassbender, M. E.; Goff, G. S.; Taylor, W.; Valdez, F.; Wolfsberg, L. E.; Cisneros, M.; Dry, D.; Gallegos, M.; Gritzo, R.; Bitteker, L. J.; Wender, S.; Baty, R. S.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Weidner, JW (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA.
OI John, Kevin/0000-0002-6181-9330
NR 2
TC 0
Z9 0
U1 0
U2 3
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0891-3
J9 AIP CONF PROC
PY 2011
VL 1336
BP 423
EP 425
DI 10.1063/1.3586134
PG 3
WC Physics, Applied
SC Physics
GA BZT55
UT WOS:000302912900088
ER
PT S
AU Waldmann, O
Ludewigt, B
AF Waldmann, O.
Ludewigt, B.
BE McDaniel, FD
Doyle, BL
TI A Permanent-Magnet Microwave Ion Source For A Compact High-Yield Neutron
Generator
SO APPLICATION OF ACCELERATORS IN RESEARCH AND INDUSTRY: TWENTY-FIRST
INTERNATIONAL CONFERENCE
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 21st International Conference on Application of Accelerators in Research
and Industry (CAARI)
CY AUG 08-13, 2010
CL Ft Worth, TX
SP Univ N Texas, Sandia Natl Lab, Los Alamos Natl Labs, AccSys Technol Inc, High Voltage Engn Europa BV, Natl Electrostat Corp, TDK-Lambda Amer
DE Neutron generator; Microwave ion source; Active interrogation
AB We present recent work on the development of a microwave ion source that will be used in a high-yield compact neutron generator for active interrogation applications. The sealed tube generator will be capable of producing high neutron yields, 5x10(11) n/s for D-T and similar to 1x10(10) n/s for D-D reactions, while remaining transportable. We constructed a microwave ion source (2.45 GHz) with permanent magnets to provide the magnetic field strength of 87.5 mT necessary for satisfying the electron cyclotron resonance (ECR) condition. Microwave ion sources can produce high extracted beam currents at the low gas pressures required for sealed tube operation and at lower power levels than previously used RF-driven ion sources. A 100 mA deuterium/tritium beam will be extracted through a large slit (60x6 mm(2)) to spread the beam power over a larger target area. This paper describes the design of the permanent-magnet microwave ion source and discusses the impact of the magnetic field design on the source performance. The required equivalent proton beam current density of 40 mA/cm(2) was extracted at a moderate microwave power of 400 W with an optimized magnetic field.
C1 [Waldmann, O.; Ludewigt, B.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
RP Waldmann, O (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, 1 Cyclotron Rd, Berkeley, CA 94720 USA.
NR 9
TC 2
Z9 2
U1 1
U2 3
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0891-3
J9 AIP CONF PROC
PY 2011
VL 1336
BP 479
EP 482
DI 10.1063/1.3586145
PG 4
WC Physics, Applied
SC Physics
GA BZT55
UT WOS:000302912900099
ER
PT S
AU Thompson, SJ
Kinlaw, MT
Hunt, AW
AF Thompson, Scott J.
Kinlaw, Mathew T.
Hunt, Alan W.
BE McDaniel, FD
Doyle, BL
TI Testing The High-Energy Prompt Neutron Signature At Low Beam Energies
SO APPLICATION OF ACCELERATORS IN RESEARCH AND INDUSTRY: TWENTY-FIRST
INTERNATIONAL CONFERENCE
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 21st International Conference on Application of Accelerators in Research
and Industry (CAARI)
CY AUG 08-13, 2010
CL Ft Worth, TX
SP Univ N Texas, Sandia Natl Labs, Los Alamos Natl Lab, AccSys Technol Inc, High Voltage Engn Europa BV, Natl Electrostat Corp, TDK-Lambda Amer
DE Nuclear Material Detection; Active Inspection; Photofission; Prompt
Neutrons
AB Prompt fission neutrons continue to be examined as a signature for detecting the presence of fissionable material. This technique exploits the neutron energy limitations inherent with photonuclear emissions from non-fissionable material, allowing prompt fission neutrons to be identified and engaged for detecting nuclear material. Prompt neutron signal measurements were acquired with bremsstrahlung endpoint energies of 6 MeV for 18 targets comprised of both fissionable and non-fissionable material; delayed neutron measurements were also collected as a reference. The U-238 target was also shielded with increasing thicknesses of lead or borated polyethylene to compare the resulting detection rates of the prompt and delayed fission neutron signals.
C1 [Thompson, Scott J.; Kinlaw, Mathew T.] Idaho Natl Lab, 2525 N Fremont Ave, Idaho Falls, ID 83415 USA.
[Hunt, Alan W.] Idaho Accelerator Ctr, Pocatello, ID 83209 USA.
RP Thompson, SJ (reprint author), Idaho Natl Lab, 2525 N Fremont Ave, Idaho Falls, ID 83415 USA.
FU U.S. Department of Energy National Nuclear Security Administration
Office of Nonproliferation and International Security; Next Generation
Safeguards Initiative; U.S. Department of Energy by Battelle Energy
Alliance under DOE [DE-AC07-05-ID14517]
FX This work was supported in part by the U.S. Department of Energy
National Nuclear Security Administration Office of Nonproliferation and
International Security, Next Generation Safeguards Initiative. Idaho
National Laboratory is operated for the U.S. Department of Energy by
Battelle Energy Alliance under DOE contract DE-AC07-05-ID14517.
NR 11
TC 0
Z9 0
U1 0
U2 0
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0891-3
J9 AIP CONF PROC
PY 2011
VL 1336
BP 483
EP 486
DI 10.1063/1.3586146
PG 4
WC Physics, Applied
SC Physics
GA BZT55
UT WOS:000302912900100
ER
PT S
AU Quarles, CA
Klaehn, JR
Peterson, ES
Urban-Klaehn, JM
AF Quarles, C. A.
Klaehn, John R.
Peterson, Eric S.
Urban-Klaehn, Jagoda M.
BE McDaniel, FD
Doyle, BL
TI Positron Annihilation Spectroscopy Of High Performance Polymer Films
Under CO2 Pressure
SO APPLICATION OF ACCELERATORS IN RESEARCH AND INDUSTRY: TWENTY-FIRST
INTERNATIONAL CONFERENCE
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 21st International Conference on Application of Accelerators in Research
and Industry (CAARI)
CY AUG 08-13, 2010
CL Ft Worth, TX
SP Univ N Texas, Sandia Natl Labs, Los Alamos Natl Lab, AccSys Technol Inc, High Voltage Engn Europa BV, Natl Electrostat Corp, TDK-Lambda Amer
DE positron lifetime spectroscopy; Doppler Broadening; polymer film; CO2
pressure
AB Positron annihilation Lifetime and Doppler broadening measurements are reported for six polymer films as a function of carbon dioxide (CO2) absolute pressure ranging from 0 to 45 psi. Since the polymer films were thin and did not absorb all positrons, corrections were made in the lifetime analysis for the absorption of positrons in the positron source and sample holder using the Monte Carlo transport code MCNP. The studied polymers are found to behave differently from each other. Some polymers form positronium and others, such as the polyimide structures, do not. For those polymers that form positronium an interpretation in terms of free volume is possible; for those that don't form positronium, further work is needed to determine how best to describe the behavior in terms of the bulk positron annihilation parameters. A few of the studied polymers exhibit changes in positron lifetime and intensity under CO2 pressure which may be described by the Henry or Langmuir sorption models(3), while the positron response of other polymers is rather insensitive to the CO2 pressure. The results demonstrate the usefulness of positron annihilation spectroscopy in investigating the sorption of CO2 into various polymers at pressures up to about 3 atm (45psi).
C1 [Quarles, C. A.] Texas Christian Univ, Ft Worth, TX 76109 USA.
[Klaehn, John R.; Peterson, Eric S.] Idaho Natl Lab, Idaho Falls, ID 83415 USA.
[Urban-Klaehn, Jagoda M.] Pajarito Sci Corp, Idaho Falls, ID 83404 USA.
RP Quarles, CA (reprint author), Texas Christian Univ, Ft Worth, TX 76109 USA.
RI Klaehn, John/C-6011-2017
OI Klaehn, John/0000-0002-7077-4509
NR 12
TC 0
Z9 0
U1 0
U2 1
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0891-3
J9 AIP CONF PROC
PY 2011
VL 1336
BP 513
EP 518
DI 10.1063/1.3586153
PG 6
WC Physics, Applied
SC Physics
GA BZT55
UT WOS:000302912900107
ER
PT S
AU Chichester, DL
Johnson, JT
Seabury, EH
AF Chichester, David L.
Johnson, James T.
Seabury, Edward H.
BE McDaniel, FD
Doyle, BL
TI Measurement Of The Neutron Spectrum Of A DD Electronic Neutron Generator
SO APPLICATION OF ACCELERATORS IN RESEARCH AND INDUSTRY: TWENTY-FIRST
INTERNATIONAL CONFERENCE
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 21st International Conference on Application of Accelerators in Research
and Industry (CAARI)
CY AUG 08-13, 2010
CL Ft Worth, TX
SP Univ N Texas, Sandia Natl Lab, Los Alamos Natl Labs, AccSys Technol Inc, High Voltage Engn Europa BV, Natl Electrostat Corp, TDK-Lambda Amer
DE Neutron spectrometry; digital pulse shape analysis; DD-fusion;
electronic neutron generator
ID PULSE RISETIME DISCRIMINATION; HE-3 PROPORTIONAL COUNTER; IONIZATION
CHAMBERS; 3HE COUNTERS; SPECTROMETER; SPECTROSCOPY
AB A Cuttler-Shalev (C-S) He-3 proportional counter has been used to measure the energy spectrum of neutrons from a portable deuterium-deuterium electronic neutron generator. To improve the analysis of results from the C-S detector digital pulse shape analysis techniques have been used to eliminate neutron recoil artifacts in the recorded data. Data was collected using a 8-GHz, 10-bit waveform digitizer with its full scale corresponding to approximately 6-MeV neutrons. The measurements were made with the detector axis perpendicular to the direction of ions in the ENG in a plane 0.5-m to the side of the ENG, measuring neutrons emitted at an angle from 87.3 degrees to 92.7 degrees with respect to the path of ions in the ENG. The system demonstrated an energy resolution of approximately 0.040 MeV for the thermal peak and approximately 0.13 MeV at the DD neutron energy. In order to achieve the ultimate resolution capable with this type of detector it is clear that a higher-precision digitizer will be needed.
C1 [Chichester, David L.; Johnson, James T.; Seabury, Edward H.] Idaho Natl Lab, Idaho Falls, ID 83415 USA.
RP Chichester, DL (reprint author), Idaho Natl Lab, 2525 N Fremont Ave, Idaho Falls, ID 83415 USA.
RI Johnson, James/B-9689-2017
OI Johnson, James/0000-0002-3434-4413
NR 26
TC 2
Z9 2
U1 1
U2 4
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0891-3
J9 AIP CONF PROC
PY 2011
VL 1336
BP 519
EP 523
DI 10.1063/1.3586154
PG 5
WC Physics, Applied
SC Physics
GA BZT55
UT WOS:000302912900108
ER
EF