Journal ArticleDOI
Helium, hydrogen, and fuzz in plasma-facing materials
Karl D. Hammond
- Vol. 4, Iss: 10, pp 104002
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The article was published on 2017-10-05. It has received 104 citations till now. The article focuses on the topics: Hydrogen & Helium.read more
Citations
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The role of interface structure in controlling high helium concentrations
TL;DR: In this article, the authors presented an award for Materials in Irradiation and Mechanical Extremes (CMIME) (Award 2008LANL1026) from the U.S. Dept of Energy.
Journal ArticleDOI
Behavior of tungsten under irradiation and plasma interaction
Journal Article
Analysis of Helium Segregation on Surfaces of Plasma-Exposed Tungsten
TL;DR: A hierarchical multi-scale modeling study of implanted helium segregation on surfaces of tungsten, considered as a plasma facing component in nuclear fusion reactors, finds that small, mobile He n clusters in the near-surface region are attracted to the surface due to an elastic interaction force that provides the thermodynamic driving force for surface segregation.
Journal ArticleDOI
Continuum-scale modeling of helium bubble bursting under plasma-exposed tungsten surfaces
TL;DR: In this paper, a comparison between a continuum-scale drift-diffusion-reaction cluster dynamics prediction of helium retention in low-energy helium plasma exposed tungsten and experimental measurements, in a temperature regime that did not produce Tungsten fuzz, is presented.
References
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Journal ArticleDOI
Visualization and analysis of atomistic simulation data with OVITO–the Open Visualization Tool
TL;DR: The Open Visualization Tool (OVITO) as discussed by the authors is a 3D visualization software designed for post-processing atomistic data obtained from molecular dynamics or Monte Carlo simulations, which is written in object-oriented C++, controllable via Python scripts and easily extendable through a plug-in interface.
Journal ArticleDOI
A simple empirical N-body potential for transition metals
M. W. Finnis,J. E. Sinclair +1 more
TL;DR: In this article, a simple form of multi-ion interaction has been constructed for the purpose of atomistic simulation of transition metals, which can account for experimental vacancy-formation energies and does not require an externally applied pressure to balance the Cauchy pressure.
Journal ArticleDOI
Plasma{material interactions in current tokamaks and their implications for next step fusion reactors
G. Federici,C. H. Skinner,Jeffrey N. Brooks,J. P. Coad,C. Grisolia,A.A. Haasz,Ahmed Hassanein,V. Philipps,C. S. Pitcher,J. Roth,W R Wampler,Dennis Whyte +11 more
TL;DR: In this article, the authors review the underlying physical processes and the existing experimental database of plasma-material interactions both in tokamaks and laboratory simulation facilities for conditions of direct relevance to next-step fusion reactors.
Journal ArticleDOI
Chapter 1: Overview and summary
TL;DR: The ITER Physics Basis as mentioned in this paper presents and evaluates the physics rules and methodologies for plasma performance projections, which provide the basis for the design of a tokamak burning plasma device whose goal is to demonstrate the scientific and technological feasibility of fusion energy for peaceful purposes.
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