Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Alison Kubota"'
Autor:
Ümit V. Çatalyürek, Mehul Patel, Alan Gara, Robert K. Yates, Martin Schulz, José E. Moreira, Bor Chan, Kai Kadau, William Clarence McLendon, Franz Franchetti, Peter Williams, Andy Yoo, Keith Henderson, Bob Walkup, Bruce Hendrickson, Timothy C. Germann, George Almási, Christoph Überhuber, Erik W. Draeger, James C. Sexton, John A. Gunnels, Andrew W. Cook, Edmond Chow, Stefan Kral, Frederick H. Streitz, Vasily V. Bulatov, Jeffrey Greenough, Gyan Bhanot, Steve Louis, C. A. Rendleman, Manish Gupta, Charles J. Archer, Michael Welcome, Jürgen Lorenz, Francois Gygi, William H. Cabot, Bronis R. de Supinski, Alison Kubota, Peter S. Lomdahl, Brian J. Miller, Thomas E. Spelce, James N. Glosli
Publikováno v:
The International Journal of High Performance Computing Applications. 22:33-51
BlueGene/L (BG/L), developed through a partnership between IBM and Lawrence Livermore National Laboratory (LLNL), is currently the world's largest system both in terms of scale, with 131,072 processors, and absolute performance, with a peak rate of 3
Publikováno v:
Journal of Computer-Aided Materials Design. 14:367-378
Molecular dynamics simulations of the formation and annealing of large collision cascades in delta-phase plutonium are presented. The defect evolution is followed with time up to 2 ns. Simulations are performed with the MEAM potential at three differ
Autor:
Alexander Landa, Babak Sadigh, Michael P. Surh, B. Oudot, W. G. Wolfer, Per Söderlind, Alison Kubota, J.B. Sturgeon
Publikováno v:
Journal of Alloys and Compounds. :72-79
Ga-stabilized δ-Pu undergoes small changes in density with time. These have been associated with four different causes: an initial reversible expansion that saturates after a short time; a continuous change that can be attributed to the in-growth of
Publikováno v:
Fusion Engineering and Design. :1027-1030
The interest on the effects of radiation in vitreous silica has increased recently due to its possible application as optical transmission component in fusion reactors. This material will be exposed to high neutron irradiation fluxes during operation
Autor:
Alison Kubota, W. G. Wolfer
Publikováno v:
Materials Science and Engineering: A. :362-365
In order to study the dynamic mechanism of loop unfaulting, we performed large-scale classical molecular dynamics simulations involving computational cells with several millions of atoms. To induce dislocation loop unfaulting, we launched 1 ps durati
Publikováno v:
Journal of Nuclear Materials. :1190-1193
Silica is one of the candidate materials for final focusing mirrors in inertial fusion reactors. This material will be exposed to high neutron irradiation fluxes during operation. Radiation damage results in point defects that can lead to obscuration
Autor:
Maria Jose Caturla, Thomas E. Felter, Brian D. Wirth, T. Diaz de la Rubia, Alison Kubota, Mark A. Wall, Michael J. Fluss
Publikováno v:
Journal of Alloys and Compounds. 368:62-74
We report the measured decrease of electrical resistivity during isochronal-annealing of ion irradiation damage accumulated at lowtemperature (10 or 20 K), and the temperature dependence of the resistance of defect populations produced by low-tempera
Autor:
Sham N. Dixit, J. A. Speth, Stephen A. Payne, Alison Kubota, Jeffery F. Latkowski, M.J. Caturla
Publikováno v:
Fusion Science and Technology. 43:540-558
The survivability of the final optic, which must sit in the line of sight of high-energy neutrons and gamma rays, is a key issue for any laser-driven inertial fusion energy (IFE) concept. Previous ...
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 207:72-79
Energetic ions in the MeV regime have pronounced effects on the stress-state and geometry of fused silica. In particular, Polman and co-workers have shown that 4 MeV xenon ions cause substantial changes in thin films and microspheres of fused silica.
Autor:
Susana Reyes, Babak Sadigh, James S. Stolken, Maria Jose Caturla, Tomas Diaz de la Rubia, J F Latkowski, Alison Kubota
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 202:88-92
We have performed molecular dynamics simulations of radiation damage in fused silica. In this study, we discuss the role of successive cascade overlap on the saturation and self-healing of oxygen vacancy defects in the amorphous fused silica network.