Source: https://collab.cels.anl.gov/display/PSIscidac/Publications+and+Presentations
Timestamp: 2019-04-25 10:33:31+00:00

Document:
K. D. Hammond, S. Blondel, L. Hu, D. Maroudas, and B. D. Wirth, Large-Scale Atomistic Simulations of Low-Energy Helium Implantation into Tungsten Single Crystals, Acta Materialia 144 (2018) 561–578.
K. D. Hammond, Helium, Hydrogen, and Fuzz in Plasma-Facing Materials, Materials Research Express 4 (2017) 104002.
L. Hu, B. D. Wirth, and D. Maroudas, Thermal Conductivity of Tungsten: Effects of Plasma-Related Structural Defects from Molecular-Dynamics Simulations, Applied Physics Letters 111 (2017) 018902.
J. Drobny, A. Hayes, D. Curreli, and D.N.Ruzic, F-TRIDYN: A Binary Collision Approximation code for simulating ion interactions with rough surfaces, Journal of Nuclear Materials 494 278–283 (2017).
E. Martinez, B. P. Uberuaga, and B. D. Wirth, Atomistic Modeling of Helium Segregation to Grain Boundaries in Tungsten and Its Effect on De-Cohesion, Nuclear Fusion 57 (8) 086044 (2017).
T. Abrams, R. Ding, H. Y. Guo, D. M. Thomas, C. P. Chrobak, D. L. Rudakov, A. G. McLean, E. A. Unterberg, A. R. Briesemeister, P. C. Stangeby, J. D. Elder, W. R. Wampler, and J. G. Watkins, The Inter-ELM Tungsten Erosion Profile in DIII-D H-Mode Discharges and Benchmarking with ERO+OEDGE Modeling, Nuclear Fusion 57 (5) 056034 (2017).
R. Ding, D. L. Rudakov, P. C. Stangeby, W. R. Wampler, T. Abrams, S. Brezinsek, A. Briesemeister, I. Bykov, V. S. Chan, C. P. Chrobak, J. D. Elder, H. Y. Guo, J. Guterl, A Kirschner, C. J. Lasnier, A. W. Leonard, M. A. Makowski, A. G. McLean, P. B. Snyder, D. M. Thomas, D. Tskhakaya, E. A. Unterberg, H. Q. Wang, and J. G. Watkins, Advances in Understanding of High-Z Material Erosion and Re-Deposition in Low-Z Wall Environment in DIII-D, Nuclear Fusion 57 (5) 056016 (2017).
D. Perez, L. Sandoval, S. Blondel, B. D. Wirth, B. P. Uberuaga, A. F. Voter. The Mobility of Small Vacancy/Helium Complexes in Tungsten and Its Impact on Retention in Fusion-Relevant Conditions, Scientific Reports 7 (2017) 2522.
R. D. Smirnov, J. Guterl, and S. I. Krasheninnikov, Modeling of Multispecies Dynamics in Fusion-Related Materials with FACE, Fusion Science and Technology 71 (1) 75–83 (2017).
J. M. Canik, X.-Z. Tang, Sensitivity of the Boundary Plasma to the Plasma-Material Interface, Fusion Science and Technology 71 (1) 103–109 (2017).
Z. J. Bergstrom, M. A. Cusentino, and B. D. Wirth, A Molecular Dynamics Study of Subsurface Hydrogen-Helium Bubbles in Tungsten, Fusion Science and Technology 71 (1) 122–135 (2017).
X.-Z. Tang and Z. Guo, Plasma Power Recycling at the Divertor Surface, Fusion Science and Technology 71 (1) 110–121 (2017).
G. Samolyuk, Y. N. Osetsky, and R. E. Stoller, Properties of Vacancy Complexes with Hydrogen and Helium Atoms in Tungsten from First Principles, Fusion Science and Technology 71 (1) 52–59 (2017).
S. Keniley and D. Curreli, Dynamic Coupling of Boltzmann Plasma Model to Surface Erosion Model for Kinetic Treatment of Plasma-Material Interactions, Fusion Science and Technology 71 (1) 93–102 (2017).
L. Sandoval, D. Perez, B. P. Uberuaga, and A. F. Voter, Growth Rate Effects on the Formation of Dislocation Loops Around Deep Helium Bubbles in Tungsten, Fusion Science and Technology 71 (1) 1–6 (2017).
S. Blondel, K. D. Hammond, L. Hu, D. Maroudas, and B. D. Wirth. Modeling Helium Segregation to the Surfaces of Plasma-Exposed Tungsten as a Function of Temperature and Surface Orientation, Fusion Science and Technology 71 (1) 22–35 (2017).
Z. Yang, S. Blondel, K. D. Hammond, and B. D. Wirth, Kinetic Monte Carlo Simulations of Helium Cluster Nucleation in Tungsten with Pre-Existing Vacancies, Fusion Science and Technology 71 (1) 60–74 (2017).
K. D. Hammond, F. Ferroni, and B. D. Wirth, Simulation of Helium Behavior Near Sub-Surface Prismatic Dislocation Loops in Tungsten, Fusion Science and Technology 71 (1) 7–21 (2017).
S. Blondel, D. E. Bernholdt, K. D. Hammond, L. Hu, D. Maroudas, and B. D. Wirth, Benchmarks and Tests of a Multidimensional Cluster Dynamics Model of Helium Implantation in Tungsten, Fusion Science and Technology 71 (1) 84–92 (2017).
L. Hu, K. D. Hammond, B. D. Wirth, and D. Maroudas, Dynamics of Small Mobile Helium Clusters Near a Symmetric Tilt Grain Boundary of Plasma-Exposed Tungsten, Fusion Science and Technology 71 (1) 36–51 (2017).
Lin Hu, Brian D. Wirth, and Dimitrios Maroudas, Thermal Conductivity of Tungsten: Effects of Plasma-Related Structural Defects from Molecular-Dynamics Simulations, Appl. Phys. Lett. 111, 081902 (2017); doi: 10.1063/1.4986956.
G.-Y. Huang, N. Juslin, and B. D. Wirth, First-Principles Study of Vacancy, Interstitial, Noble Gas Atom Interstitial and Vacancy Clusters in bcc-W, Computational Materials Science 123 (2016) 121–130.
D. Perez, L. Sandoval, B. P. Uberuaga, and A. F. Voter, The Thermodynamic and Kinetic Interactions of He Interstitial Clusters with Bubbles in W, Journal of Applied Physics 119 (2016) 203301.
S. I. Krasheninnikov and R. D. Smirnov, He cluster dynamics in W in the presence of cluster induced formation of He traps , Physica Scripta T167 (2016) 014021.
R. Ding, P.C. Stangeby, D.L. Rudakov, J.D. Elder, D. Tskhakaya, W.R. Wampler, A. Kirschner, A.G. McLean, H.Y. Guo, V.S. Chan and P.B. Snyder. Simulation of gross and net erosion of high-Z materials in the DIII-D divertor, Nuclear Fusion 56 (2016) 016021.
M. Backman, K. D. Hammond, and B. D. Wirth, Atomistic Simulations of Tungsten Surface Evolution Under Low-Energy Neon Implantation, Nuclear Fusion 56 (2016) 046008.
D. Maroudas, S. Blondel, L. Hu, K. D. Hammond, and B. D. Wirth, Helium Segregation on Surfaces of Plasma-Exposed Tungsten, Journal of Physics: Condensed Matter 28 (2016) 064004.
L. Hu, K. D. Hammond, B. D. Wirth, and D. Maroudas, Molecular-Dynamics Analysis of Mobile Helium Cluster Reactions Near Surfaces of Plasma-Exposed Tungsten, Journal of Applied Physics 118 (2015) 163301.
K. D. Hammond, L. Hu, D. Maroudas, and B. D. Wirth, Helium Impurity Transport on Grain Boundaries: Enhanced or Inhibited? Europhysics Letters 110 (2015) 52002.
S. I. Krasheninnikov and R. D. Smirnov, He cluster dynamics in fusion related plasma facing materials , Nuclear Fusion 55 (2015) 073005.
W. Setyawan, A.P. Selby, N. Juslin, R.E. Stoller, B.D. Wirth and R.J. Kurtz. Cascade morphology transition in bcc metals. Journal of Physics Condensed Matter 27 (2015) 225402.
L. Sandoval, D. Perez, B. P. Uberuaga, and A. F. Voter. Competing Kinetics and He Bubble Morphology in W. Physical Review Letters 114 (2015) 105502.
Ferroni, F., K. D. Hammond, and B. D. Wirth. Sputtering Yields of Pure and Helium-Implanted Tungsten Under Fusion-Relevant Conditions Calculated Using Molecular Dynamics. Journal of Nuclear Materials 458 (2015) 419–424.
Faney, T., S. I. Krasheninnikov, and B. D. Wirth. Spatially dependent cluster dynamics model of He plasma surface interaction in tungsten for fusion relevant conditions, Nuclear Fusion 55 (2015) 013014.
W. Widanagamaachchi, K. D. Hammond, L.-T. Lo, B. D. Wirth, F. Samsel, C. Sewell, J. Ahrens, and V. Pascucci. Visualization and Analysis of Large-Scale Atomistic Simulations of Plasma–Surface Interactions. In Eurographics Conference on Visualization (EuroVis); E. Bertini, J. Kennedy, and E. Puppo, editors. The Eurographics Association (2015).
B. D. Wirth, K. D. Hammond, S. I. Krasheninnikov, and D. Maroudas. Challenges and Opportunities of Modeling Plasma Surface Interactions in Tungsten Using High Performance Computing. Journal of Nuclear Materials 463 (2015) 30–38.
M. A. Cusentino, K. D. Hammond, F. Sefta, N. Juslin, and B. D. Wirth. A Comparison of Interatomic Potentials for Modeling Tungsten–Hydrogen–Helium Plasma–Surface Interactions. Journal of Nuclear Materials 463 (2015) 347–350.
W. Setyawan, G. Nandipati, K.J. Roche, H.L. Heinisch, R.J. Kurtz, B.D. Wirth. Displacement Cascades and Defects Annealing in tungsten, Part I: Defect Database for Molecular Dynamics simulations. Journal of Nuclear Materials 462 (2015) 329–337.
G. Nandipati, W. Setyawan, H.L. Heinisch K.J. Roche, R.J. Kurtz, B.D. Wirth. Displacement Cascades and Defects Annealing in tungsten, Part II: Object Kinetic Monte Carlo Simulation of Tungsten Cascade Aging. Journal of Nuclear Materials 462 (2015) 338–344.
G. Nandipati, W. Setyawan, H.L. Heinisch K.J. Roche, R.J. Kurtz, B.D. Wirth. Displacement Cascades and Defects Annealing in tungsten, Part III: Sensitivity of Cascade Annealing in Tungsten on Kinetic Parameters. Journal of Nuclear Materials 462 (2015) 345-353.
R. D. Smirnov, S. I. Krasheninnikov, and J. Guterl, Atomistic modeling of growth and coalescence of helium nano-bubbles in tungsten , Journal of Nuclear Materials 463 (2015) 359–362.
J. Guterl, R. D. Smirnov, S. I. Krasheninnikov, B. Uberuaga, A. F. Voter, and D. Perez, Modeling of hydrogen desorption from tungsten surface , Journal of Nuclear Materials 463 (2015) 263–267.
J. Guterl, R. D. Smirnov, and S. I. Krasheninnikov, Revisited reaction-diffusion model of thermal desorption spectroscopy experiments on hydrogen retention in materialJournal of Applied Physics 118 (2015) 043302.
J. Guterl, R. D. Smirnov, S. I. Krasheninnikov, M. Zibrov, and A. A. Pisarev, Theoretical analysis of deuterium retention in tungsten plasma-facing components induced by various traps via thermal desorption spectroscopy, Nuclear Fusion 55 (2015) 093017.
D. Perez, T. Vogel, and B. P. Uberuaga, Diffusion and Transformation Kinetics of Small Helium Clusters in Bulk Tungsten, Physical Review B 90 (2014) 014102.
L. Hu, K. D. Hammond, B. D. Wirth, and D. Maroudas, Interactions of Mobile Helium Clusters with Surfaces and Grain Boundaries of Plasma-Exposed Tungsten, Journal of Applied Physics 115 (2014) 173512.
L. Hu, K. D. Hammond, B. D. Wirth, and D. Maroudas, Dynamics of Small Mobile Helium Clusters Near Tungsten Surfaces, Surface Science 626 (2014) L21-L25.
S. I. Krasheninnikov, T. Faney, and B. D. Wirth, On Helium Cluster Dynamics in Tungsten Plasma Facing Components of Fusion Devices, Nuclear Fusion 54 (2014) 073019.
R. D. Smirnov, S. I. Krasheninnikov, J. Guterl, M. J. Baldwin, and R. P. Doerner, Modeling of Hydrogen Retention and Outgassing from Co-Deposits with Distributed Energy States , Contributions to Plasma Physics 54(3-4) (2014) 610-614.
A.V. Barashev, H. Xua, R.E. Stoller, The behavior of small helium clusters near free surfaces in tungsten, Journal of Nuclear Materials 454 (2014) 421–426.
R. D. Smirnov and S. I. Krasheninnikov, On the Shear Strength of Tungsten Nano-Structures with Embedded Helium, letter, Nuclear Fusion 53 (2013) 082002.
F. Sefta, K. D. Hammond, N. Juslin, and B. D. Wirth, Tungsten Surface Evolution by Helium Bubble Nucleation, Growth, and Rupture, Nuclear Fusion 53 (2013) 073015.
S. Blondel, D. E. Bernholdt, K. D. Hammond, and B. D. Wirth. “Cluster Dynamics Predictions of Helium Retention and Bubble Formation in Tungsten: Implantation Rate, Temperature, and Bubble Bursting Effects.” 16th International Conference on Plasma-Facing Materials and Components, Neuss, Germany, May 18, 2017 (poster).
M. A. Cusentino, K. D. Hammond, and B. D. Wirth. “A Molecular Dynamics Study of the Effects of Subsurface Helium Bubbles on the Diffusion of Helium and Hydrogen in Tungsten.” 16th International Conference on Plasma-Facing Materials and Components, Neuss, Germany, May 18, 2017 (poster).
Z. J. Bergstrom, C. Li, and B. D. Wirth. "Density Functional Theory Modeling of Hydrogen-Helium Interactions Near Tungsten (110) Surfaces." 16th International Conference on Plasma-Facing Materials and Components, Neuss, Germany, May 18, 2017 (poster).
D. Dasgupta, L. Du, D. Maroudas, and B. D. Wirth. “Modeling of Nanotendril Formation in Helium-Ion-Irradiated Tungsten.” 16th International Conference on Plasma-Facing Materials and Components, Neuss, Germany, May 16, 2017 (poster).
T. R. Younkin, D. Martin, M. A. Cusentino, S. Blondel, A. Lasa, D. L. Green, J. Drobny, D. Curreli, J. M. Canik, and B. D. Wirth. “Simulation of Helium Exposed Tungsten Erosion and Redistribution and Sub-Surface Gas Behaviour in PISCES.” 16th International Conference on Plasma-Facing Materials and Components, Neuss, Germany, May 16, 2017 (poster).
J. Gentles and K. D. Hammond. "Effect of Metal Impurities on Helium Behavior in Plasma-Facing Tungsten." Spring Research and Creative Achievements Forum, Columbia, Missouri, April 18, 2017 (poster).
D. Ruff, A. Rohrich, Z. Yang, and K. D. Hammond. "The Effect of Grain Boundaries on Helium Transport in Fusion Reactor Materials." Spring Research and Creative Achievements Forum, Columbia, Missouri, April 18, 2017 (poster).
I. V. Naeger and K. D. Hammond. “Enhanced Visualization of Large-Scale Atomistic Simulations of Plasma–Surface Interactions.” Spring Research and Creative Achievements Forum, Columbia, Missouri, April 18, 2017 (poster).
K. D. Hammond, I. V. Naeger, L. Hu, S. Blondel, J. J. Billings, B. D. Wirth, D. Maroudas, and D. E. Bernholdt. "Atomistic and Continuum Drift-Diffusion Simulations of Helium Transport in Tungsten." AIChE Annual Meeting, San Francisco, California, November 16, 2016.
K. D. Hammond, F. Ferroni, and B. D. Wirth. "Simulation of Helium Transport Near Prismatic Dislocation Loops in Tungsten." AIChE Annual Meeting, San Francisco, California, November 16, 2016.
L. Hu, K. D. Hammond, B. D. Wirth, and D. Maroudas. "Analysis of Mobile Helium Cluster Dynamics Near Surfaces and Grain Boundaries of Plasma-Exposed Tungsten." AIChE Annual Meeting, San Francisco, California, November 15, 2016.
M. A. Cusentino, K. D. Hammond, and B. D. Wirth. "Molecular Dynamics Simulations of Mixed Hydrogen–Helium Implantation in Tungsten." Department of Energy Fusion Materials Workshop, Knoxville, Tennessee, July 27, 2016 (poster).
K. D. Hammond and the PSI-SciDAC Team. "Large-Scale Molecular Dynamics Simulations of Helium in Tungsten: The First Microsecond." Department of Energy Fusion Materials Workshop, Knoxville, Tennessee, July 27, 2016 (poster).
M. A. Cusentino, K. D. Hammond, and B. D. Wirth. "Molecular Dynamics Simulations of Mixed Hydrogen–Helium Implantation in Tungsten." 22nd International Conference on Plasma–Surface Interactions in Controlled Fusion Devices, Rome, Italy, May 30, 2016 (poster).
S. Blondel, D. E. Bernholdt, K. D. Hammond, L. Hu, D. Maroudas, and B. D. Wirth. “Near-Surface Helium Segregation in Tungsten with the Xolotl Plasma–Surface Interactions Simulator.” Second International Workshop on Models and Data for Plasma–Material Interaction in Fusion Devices (MoD-PMI), Loughborough University, Loughborough, Leicestershire, United Kingdom, June 23, 2016.
K. D. Hammond, S. Blondel, M. A. Cusentino, L. Hu, D. E. Bernholdt, J. J. Billings, D. Maroudas, and B. D. Wirth. "Multiscale Plasma–Material Interactions Simulation: Continuum-Scale Models Informed by 'Computer Experiments' Using Large-Scale Molecular Dynamics." Second International Workshop on Models and Data for Plasma–Material Interaction in Fusion Devices (MoD-PMI), Loughborough University, Loughborough, Leicestershire, United Kingdom, June 23, 2016 (invited).
I. V. Naeger, W. Widanagamaachchi, L.-T. Lo, and K. D. Hammond. "Refinement of Visualization and Analysis of Large-Scale Atomistic Simulations of Plasma–Surface Interactions." Spring Research and Creative Achievements Forum, University of Missouri, April 26, 2016 (poster).
A. Lasa*, E. Safi, C. Björkas, K. Nordlund, G. Valles, A. Rivera, I. Martin-Bragado, B. D. Wirth. "Multi-scale Plasma Facing Materials Modeling: from Bottom-Up to Top-to-Bottom", MRS Spring 2016. Phoenix, AZ, March 28-April 1, 2016 (invited).
S. Blondel, D. Maroudas, L. Hu, K. D. Hammond, and B. D. Wirth. "Scale-Bridging Modeling of Helium Segregation to Surfaces of Plasma-Exposed Tungsten." The Minerals, Metals, and Materials Society (TMS) Annual Meeting, Nashville, Tennessee, February 17, 2016.
R. D. Smirnov and S. I. Krasheninnikov. "Plastic deformation of fuzz nano-tendrils induced by He bubble growth." Oral. 22nd ITPA meeting on SOL/divertor physics, ENEA, Frascati, Italy, January 25-28, 2016.
A. Lasa, E. Safi, K. Nordlund. "Multi-scale modeling to relate Be surface temperatures, concentrations and molecular sputtering yields." 57th Annual Meeting of the American Physical Society Division of Plasma Physics, Savannah, Georgia, November 18, 2015.
J. Drobny, K. Lindquist, and D. Ruzic. "Improved Fractal Surface Algorithm for Modeling Evolving Surface Roughness in Dynamic-Composition BCA Codes." 57th Annual Meeting of the American Physical Society Division of Plasma Physics, Savannah, Georgia, November 18, 2015.
R. Ding, T. Abrams, C. P. Chrobak, H. Y. Guo, P. B. Snyder, V. S. Chan, D. L. Rudakov, P. C. Stangeby, J. D. Elder, D. Tskhakaya, W. R. Wampler, A. Kirschner, and A. G. McLean. "Modeling of material erosion and redeposition for dedicated DiMES experiments on DIII-D." 57th Annual Meeting of the American Physical Society Division of Plasma Physics, Savannah, Georgia, November 18, 2015.
M. A. Cusentino, B. D. Wirth. "Large-scale MD simulations investigating H plasma interactions with tungsten surfaces," 57th Annual Meeting of the American Physical Society Division of Plasma Physics, Savannah, Georgia, November 18, 2015.
Z. Bergstrom, M. A. Cusentino, and B. D. Wirth. "A Molecular Dynamics Study of Sub-Surface Mixed Hydrogen-Helium Bubbles in Tungsten," 57th Annual Meeting of the American Physical Society Division of Plasma Physics, Savannah, Georgia, November 18, 2015.
P. C. Stangeby and J. M. Canik. "Two-point Analysis of SOLPS Modeling for a Slot Divertor," 57th Annual Meeting of the American Physical Society Division of Plasma Physics, Savannah, Georgia, November 18, 2015.
J. Canik and X. Tang. "Improving the sheath model used in plasma fluid transport codes," 57th Annual Meeting of the American Physical Society Division of Plasma Physics, Savannah, Georgia, November 18, 2015.
X. Tang and Z. Guo. "Why ions enter the sheath entrance at supersonic speed?" 57th Annual Meeting of the American Physical Society Division of Plasma Physics, Savannah, Georgia, November 18, 2015.
R. D. Smirnov and S. I. Krasheninnikov. "He bubble growth and interaction in W nano-tendrils." Oral. 57th Annual Meeting of the American Physical Society Division of Plasma Physics, Savannah, Georgia, November 18, 2015.
D. Ruzic, P. Fiflis, K. K. Kalathiparambil. "Development of nanostructures on plasma facing components," 57th Annual Meeting of the American Physical Society Division of Plasma Physics, Savannah, Georgia, November 18, 2015.
D. Maroudas, L. Hu, K. D. Hammond, and B. D. Wirth. "Analysis of Helium Segregation on Surfaces of Plasma-Exposed Tungsten." 57th Annual Meeting of the American Physical Society Division of Plasma Physics, Savannah, Georgia, November 18, 2015.
Z. Yang and B. D. Wirth, "Deciphering gas implantation rate effects on bubble nucleation in tungsten," 57th Annual Meeting of the American Physical Society Division of Plasma Physics, Savannah, Georgia, November 18, 2015.
S. I. Krasheninnikov and R. D. Smirnov. "On He cluster dynamics in W." Oral. 57th Annual Meeting of the American Physical Society Division of Plasma Physics, Savannah, Georgia, November 18, 2015.
B. P. Uberuaga, L. Sandoval, D. Perez, and A. Voter. "Accelerated Molecular Dynamics studies of He Bubble Growth in Tungsten," 57th Annual Meeting of the American Physical Society Division of Plasma Physics, Savannah, Georgia, November 18, 2015.
L. Hu, K. D. Hammond, B. D. Wirth, and D. Maroudas. "Analysis of Helium Cluster Dynamics Near Grain Boundaries of Plasma-Exposed Tungsten." 57th Annual Meeting of the American Physical Society Division of Plasma Physics, Savannah, Georgia, November 18, 2015.
S. Blondel, D. Maroudas, L. Hu, K. D. Hammond, and B. D. Wirth. "Cluster Dynamcis Modeling of Helium Accumulation Kinetics in Tungsten Exposed to Low-Energy Helium Plasma". 57th Annual Meeting of the American Physical Society Division of Plasma Physics, Savannah, Georgia, November 18, 2015.
G. Nandipati, W. Setyawan, H. Heinisch, K. Roche, R. Kurtz , and B. D. Wirth. "Object Kinetic Monte Carlo Simulations of Radiation Damage In Bulk Tungsten," 57th Annual Meeting of the American Physical Society Division of Plasma Physics, Savannah, Georgia, November 18, 2015.
J. Guterl, R. Smirnov, and S. Krashenninikov. "Revisiting reaction-diffusion model of thermal desorption spectroscopy experiments on hydrogen retention in material for fusion applications." Oral. 57th Annual Meeting of the American Physical Society Division of Plasma Physics, Savannah, Georgia, November 17, 2015.
K. D. Hammond, L. Hu, D. Maroudas, and B. D. Wirth. "Microsecond-Length Atomistic Simulations of Plasma-Facing Materials." AIChE Annual Meeting, Salt Lake City, Utah, November 9, 2015.
L. Hu, K. D. Hammond, B. D. Wirth, and D. Maroudas, "Analysis of Mobile Helium Cluster Reactions Near Surfaces and Grain Boundaries of Plasma-Exposed Tungsten." AIChE Annual Meeting, Salt Lake City, Utah, November 9, 2015.
B.D. Wirth, on behalf of SciDAC-PSI team, SciDAC-PSI: Plasma Surface Interactions Involving Tungsten, 2015 SciDAC-PI Meeting, Bethesda, MD, July 24, 2015.
B.P. Ubueraga, on behalf of SciDAC-PSI team, Plasma-Surface Interactions (PSI): Atomistic Insights into He Transport and Agglomeration in Plasma-Exposed Tungsten, 2015 SciDAC-PI Meeting, Bethesda, MD, July 24, 2015.
S. I. Krasheninnikov. "On the physics of the first wall in fusion devices." Oral. 10th International A.A. Kurdiumov school of young scientists and 6th International Conference on Interaction of Hydrogen Isotopes with Structural Materials, Moscow, Russia, June 29- July 3, 2015.
B.D. Wirth, Y. Katoh, R.J. Kurtz, and L.L. Snead, “Multiscale Computational Modeling and Materials Research for Next-Step Devices after ITER”, Invited Plenary Talk, Symposium on Fusion Energy (SOFE) 2015, Austin, TX, 3 June 2015.
S. I. Krasheninnikov and R. D. Smirnov. "He cluster dynamics in W in the presence of cluster induced formation of He traps." Poster. 15th International Conference on Plasma-Facing Materials and Components for Fusion Applications, Aix-en-Provence, France, May 19, 2015.
J. Guterl, R. D. Smirnov, and S. I. Krasheninnikov. "Modelling of hydrogen isotopes retention in plasma-facing components of magnetic fusion reactor." Poster. 15th International Conference on Plasma-Facing Materials and Components for Fusion Applications, Aix-en-Provence, France, May 19, 2015.
L. Sandoval, D. Perez, B. P. Uberuaga, and A. F. Voter, Growth of Helium Bubbles in Tungsten under Realistic Rates, Keynote talk at 2015 OLCF Users Meeting: Reaching for the Summit Together, Oak Ridge, TN, June 2015.
B.D. Wirth on behalf of SciDAC-PSI team, “Modeling Plasma Surface Interactions involving He on Tungsten”, Southwestern Institute of Physics Plasma – Materials Interactions Workshop, Chengdu, China, 20 April 2015.
W. Setyawan, G. Nandipati, K.J. Roche, R.J. Kurtz, B.D. Wirth, “Modeling Radiation Damage in Bulk Tungsten Under Fusion Conditions,” Oral. Symposium on Microstructural Processes in Irradiated Materials, TMS 2015 144th Annual Meeting & Exhibition, Orlando, FL, 18 March 2015.
B.D. Wirth, J. Billings, S. Blondel, T. Faney, K.D. Hammond, L. Hu, N. Juslin, S. Krasheninnikov, D. Maroudas, F. Sefta, and D. Xu, “Helium Gas Clustering Dynamics in Tungsten Exposed to Helium Plasmas”, University of Illinois, Urbana-Champaign, 18 November 2014.
L. Hu, K. D. Hammond, B. D. Wirth, and D. Maroudas. "Transport and Reactions of Mobile Helium Clusters Near Surfaces and Grain Boundaries of Plasma-Exposed Tungsten." AIChE annual meeting, Atlanta, Georgia, November 16, 2014.
K. D. Hammond and B. D. Wirth, "Large-Scale Simulation of Plasma-Facing Materials for Tokamaks and Linear Devices," AIChE annual meeting, Atlanta, Georgia, November 16, 2014.
L. Sandoval, D. Perez, B. P. Uberuaga, and A. F. Voter, Growth of Helium Bubbles in Tungsten under Realistic Rates, invited talk, Joint ICTP-IAEA Conference on Models and Data for Plasma-Material Interaction in Fusion Devices, Trieste, Italy, November 2014.
A.V. Barashev, H. Xu, and R.E. Stoller, SEAKMC modeling of helium clusters and cluster reactions , Joint ICTP-IAEA Conference on Models and Data for Plasma-Material Interaction in Fusion Devices, Trieste, Italy, November 2014.
B.D. Wirth, J. Billings, S. Blondel, M.A. Cusentino, T. Faney, K. Hammond, L. Hu, S. Krasheninnikov, D. Maroudas, D. Perez, L. Sandoval, F. Sefta, B. Uberuaga, D. Xu, and Z. Yang, “Helium Gas Clustering Dynamics in Tungsten Exposed to Helium Plasmas”, ICTP-IAEA Conference on Models and Data for Plasma-Materials Interaction in Fusion Devices, Trieste, Italy, 4 November 2014.
B.D. Wirth, J. Billings, S. Blondel, M.A. Cusentino, K. Hammond, L. Hu, S. Krasheninnikov, D. Maroudas, D. Perez, L. Sandoval, B. Uberuaga, and D. Xu, “Evaluating implantation rate effects on helium bubble nucleation and evolution kinetics in tungsten exposed to helium plasmas”, ITPA DivSol Meeting, Prague, 22 October 2014.
W. Setyawan, G. Nandipati, K.J. Roche, R.J. Kurtz, B.D. Wirth, Poster. “Modeling Radiation Damage in Tungsten for Fusion Plasma Facing Applications,” Symposium on Fusion Technology, San Sebastian, Spain, 1 October 2014.
David E. Bernholdt, SciDAC-PSI: Plasma-Surface Interactions Involving Helium, invited talk, Japan/United States Exascale Applications Workshop, Gatlinburg, TN, September 2014.
Sophie Blondel, Xolotl: a Plasma-Surface Interaction Simulator, invited poster, Smoky Mountains Computational Sciences and Engineering Conference, Gatlinburg, TN, USA, September 2014.
B.D. Wirth, J. Billings, S. Blondel, T. Faney, K. Hammond, L. Hu, N. Juslin, S. Krasheninnikov, D. Maroudas, F. Sefta, and D. Xu, “Helium Gas Clustering Dynamics in Tungsten Exposed to Helium Plasmas”, Princeton Plasma Physics Laboratory, 19 August 2014.
Brian Wirth, SciDAC-PSI: Plasma Surface Interactions Involving He , invited talk, Scientific Discovery through Advanced Computing (SciDAC-3) Principal Investigator Meeting, Washington, DC, USA, July, 2014.
K. D. Hammond, and B. D. Wirth, Large-Scale Atomistic Simulations of Helium-Irradiated Tungsten, contributed poster, Scientific Discovery through Advanced Computing (SciDAC-3) Principal Investigator Meeting, Washington, DC, USA, July, 2014.
J. Billings, S. Blondel, C. Jernigan, J. Meredith, and P. Roth, Data Visualization/Analysis and Performance Support In The XOLOTL Plasma Surface Interactions Model, contributed poster, Scientific Discovery through Advanced Computing (SciDAC-3) Principal Investigator Meeting, Washington, DC, USA, July, 2014.
S. Blondel, C. Jernigan, D. Higdon, O. Knio, H. Najm, K. Sargsyan, and J. Billings, UQ: Uncertainty Quantification for Xolotl, contributed poster, Scientific Discovery through Advanced Computing (SciDAC-3) Principal Investigator Meeting, Washington, DC, USA, July, 2014.
J. Billings, S. Blondel, C. Jernigan, A. Belt, D. Bernholdt, D. Higdon, O. Knio, A. McCaskey, J. Meredith, H. Najm, P. Roth, K. Sargsyan, B. Wirth, and T. Yamaguchi-Phillips, XOLOTL: A Plasma Surface Interactions Simulator, contributed poster, Scientific Discovery through Advanced Computing (SciDAC-3) Principal Investigator Meeting, Washington, DC, USA, July, 2014.
Karl D. Hammond and Brian D. Wirth, Modeling of Tungsten Surface Evolution Due to Low-Energy Helium Plasma Exposure. USA/Japan Workshop on Plasma-facing Materials, June 2014.
B.D. Wirth, Modeling Plasma Surface Interactions in Tungsten through High Performance Computing, Plenary Review Talk, 21st International Conference on Plasma Surface Interactions (21st PSI), Kanazawa, Japan, 29 May 2014.
Karl D. Hammond, Faiza Sefta, Thibault Faney, Niklas Juslin, Donghua Xu, and Brian D. Wirth, Modeling of Tungsten Surface Evolution Due to Low-Energy Helium Plasma Exposure, Lorentz Workshop, Leiden, the Netherlands, January 2014.
R.D. Smirnov, S.I. Krasheninnikov, and J. Guterl, Atomistic modeling of growth and coalescence of helium nano-bubbles in tungsten, poster, 21st International Conference on Plasma Surface Interactions, Kanazawa, Japan, May 26-30, 2014.
J. Guterl, R.D. Smirnov, S.I. Krasheninnikov, B. Uberuaga, A.F. Voter, and D. Perez, Modeling of hydrogen desorption from tungsten surface, poster, 21st International Conference on Plasma Surface Interactions, Kanazawa, Japan, May 26-30, 2014.
S.I. Krasheninnikov, J. Guterl, R.D. Smirnov, E.D. Marenkov, and A.A. Pisarev, On plasma-material interaction in magnetic fusion devices, poster, 41st EPS Conference on Plasma Physics, Berlin, Germany, June 23-27, 2014.
S.I. Krasheninnikov, J. Guter, A.Yu. Pigarov, R.D. Smirnov, W. Lee, E.D. Marenkov, and A.A. Pisarev, Plasma-material interaction issues in magnetic fusion devices, oral, 25th IAEA Fusion Energy Conference, Saint Petersburg, Russia, October 13-18, 2014.
S. Krasheninnikov, MD modeling of He bubble growth in W and H desorption from W surface”, oral, 20th ITPA Scrape-Off Layer & Divertor Topical Group Meeting, Prague, Czech Republic, October 20-23, 2014.
R.D. Smirnov, S.I. Krasheninnikov, and J. Guterl, Molecular dynamics simulations of growth and coalescence of helium nano-bubbles in tungsten, poster, 56th Annual Meeting of the APS Division of Plasma Physics, New Orleans, LA, October 27-31, 2014.
J. Guterl, R. Smirnov, and S. Krasheninnikov, Effects of hydrogen surface processes on hydrogen retention in plasma facing components, poster, 56th Annual Meeting of the APS Division of Plasma Physics, New Orleans, LA, October 27-31, 2014.
J. Guterl, R. D. Smirnov, S. I. Krasheninnikov, B. Uberuaga, A. F. Voter and D. Perez, Modeling of hydrogen desorption from tungsten surface, poster, 2014 Joint ICTP-IAEA Conference on Models and Data for Plasma-Material Interaction in Fusion Devices, Trieste, Italy, November 3-7, 2014.
R.J. Kurtz, W. Setyawan, G. Nandipati, H.L. Heinisch, B.D. Wirth, “Modeling Radiation Damage in Bulk Tungsten for Fusion Plasma Facing Component Applications,” Invited Oral, Fall Materials Research Society Meeting, Boston, MA, 2 December 2013.
Karl D. Hammond, Lin Hu, Dimitrios Maroudas, and Brian D. Wirth, Evolution of Plasma-Exposed Tungsten Surfaces Due to Helium Diffusion and Bubble Growth. APS Plasma Physics Meeting, November, 2013.
G. Nandipati, W. Setyawan, K.J. Roche, H.L. Heinisch, R.J. Kurtz, B.D. Wirth, “Object Kinetic Monte Carlo simulation of annealing of cascade damage in tungsten,” Oral. 55th Annual Meeting of the APS Division of Plasma Physics, Denver, CO. 13 November 2013.
Karl D. Hammond, Lin Hu, Dimitrios Maroudas, and Brian D. Wirth, Evolution of Plasma-Exposed Tungsten Surfaces Due to Helium Diffusion and Bubble Growth, Materials Research Society Annual Meeting, Boston, MA, November 2013.
W. Setyawan, G. Nandipati, H.L. Heinisch, K.J. Roche, R.J. Kurtz, B.D. Wirth, “Effects of temperature, PKA energy and He on irradiation damage in W,” Oral. 16th International Fusion reactor Materials, Beijing, China, 25 October 2013.
W. Setyawan, A.P. Selby, N. Juslin, R.E. Stoller, R.J. Kurtz, B.D. Wirth, Poster. “Displacement cascades in bcc metals,” Poster. 16th International Fusion reactor Materials, Beijing, China, 25 October 2013.
G. Nandipati, W. Setyawan, K.J. Roche, H.L. Heinisch, R.J. Kurtz, B.D. Wirth, “Object Kinetic Monte Carlo simulation of annealing of cascade damage in tungsten,” Oral. 16th International Fusion reactor Materials, Beijing, China, 25 October 2013.
Brian Wirth, SciDAC-PSI: Plasma Surface Interactions Involving He, invited talk, Scientific Discovery through Advanced Computing (SciDAC-3) Principal Investigator Meeting, Rockville, Maryland, USA, July, 2013.
Lin Hu and Luis Sandoval, Plasma-Surface Interactions (PSI): Atomistic Insights into He Transport and Agglomeration in Plasma-Exposed Tungsten, poster, Scientific Discovery through Advanced Computing (SciDAC-3) Principal Investigator Meeting, Rockville, Maryland, USA, July, 2013.
J. J. Billings, A. P. Belt, D.E. Bernholdt, A. J. McCaskey, T. Yamaguchi-Phillips, Plasma Surface Interactions (PSI): XOLOTL-PSI: Code Development, Testing and Uncertainty Quantification Approaches, poster, Scientific Discovery through Advanced Computing (SciDAC-3) Principal Investigator Meeting, Rockville, Maryland, USA, July, 2013.
W. Setyawan, G. Nandipati, H.L. Heinisch, R.J. Kurtz, B.D. Wirth, “Computer Simulation of Radiation Damage in Bulk Tungsten,” Oral. 5th International Energy Agency Workshop on Theory and Modeling, Alicante, Spain, 18 May 2013.
Sergei Krasheninnikov, On the Physics of the First Wall in Fusion Devices, invited talk, 2013 International Sherwood Fusion Theory Conference, Santa Fe, New Mexico, USA, April 2013.
S. Krasheninnikov, On the scaling laws of the helium cluster dynamics and implications for ‘fuzz’ and nano-bubble formations, oral, 18th ITPA Scrape-Off Layer & Divertor Topical Group Meeting, He Fei Anhui, China, March 19-22, 2013.
R.D. Smirnov, S.I. Krasheninnikov, J. Guterl, M.J. Baldwin, and R.P. Doerner, Modeling of hydrogen retention and outgassing from co-deposits with distributed energy states, poster, 14th International Workshop on Plasma Edge Theory in Fusion Devices, Cracow, Poland, September 23-25, 2013.
R.D. Smirnov, S.I. Krasheninnikov, M.J. Baldwin, and R.P. Doerner, Modeling of hydrogen retention in co-deposited layers with trap distribution, oral, 55th annual meeting of the APS Division of Plasma Physics, Denver, CO, November 11-15, 2013.
Karl D. Hammond, Faiza Sefta, and Brian D. Wirth, Plasma-Induced Evolution of Surfaces, AIChE annual meeting, October 2012.
Brian D. Wirth, F. Sefta, K. Hammond, N. Juslin, and D. Xu, Plasma Surface Interactions (PSI): Bridging from the Surface to the Micron Frontier through Leadership Class Computing Plasma Surface Interactions (PSI): Bridging from the Surface to the Micron Frontier through Leadership Class Computing, invited talk, Scientific Discovery through Advanced Computing (SciDAC-3) Principal Investigator Meeting, Rockville, Maryland, USA, September 2012.
David E. Bernholdt and Jay Jay Billings, Plasma Surface Interactions (PSI): Bridging from the Surface to the Micron Frontier through Leadership Class Computing, poster, Scientific Discovery through Advanced Computing (SciDAC-3) Principal Investigator Meeting, Rockville, Maryland, USA, September 2012.

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