Plasma induced sputtering yield and backscattering for ITER-relevant materials as calculated by TRIM
| Autor: | Ahmad Hassan Ahmad, Pravin Kumar, M. Carrère |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Nuclear and High Energy Physics
Radiation Materials science Yield (engineering) Thermonuclear fusion chemistry.chemical_element Plasma Tungsten Fusion power equipment and supplies Condensed Matter Physics Ion chemistry Physics::Plasma Physics Sputtering General Materials Science Irradiation Atomic physics |
| Zdroj: | Radiation Effects and Defects in Solids. 170:567-573 |
| ISSN: | 1029-4953 1042-0150 |
| DOI: | 10.1080/10420150.2015.1079632 |
| Popis: | In this paper, we report an analytical model to estimate the variation of the yield (and hence the pressure) from sputtering, elastic collisions, and backscattering on a surface exposed to International Thermonuclear Experimental Reactor-relevant plasmas. To study the yield and the pressure exerted on the surfaces of carbon (C), silicon (Si) and tungsten (W) due to plasma exposure, the irradiation of H, Ar and Xe ions at normal incidence was considered. Transport and range of ions in matter simulations were done to calculate the backscattering/sputtering yields and the energies on the surfaces. The calculations are significant for the optimization of material facing the plasma in future fusion reactors where erosion and long term operation are key issues. The results show that yield increases with the increase of ion energy. The carbon surface is the least affected to exposure of the plasma. In the chosen ion energy range (0–1 keV), the simulations/calculations (for Ar ion incident on Si and W) are in goo... |
| Databáze: | OpenAIRE |
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