Damaging impacts of energetic charge particles on materials in plasma energy explosive events

• 来源期刊: 中国物理（英文版）
• 关键词: sputtering bipartition model transport theory runaway electron
• 年，卷（期）: 2006,（7）
• 页码范围: 1486-1491
• 页数: 6页
• 语种: 英文

摘要

To provide some reference data for estimation of the erosion rates and lifetimes of some candidate plasma facing component (PF3 materials in the plasma stored energy explosive events (PSEEE), this paper calculates the sputtering yields of Mo, W and deuterium saturated Li surface bombarded by energetic charged particles by a new sputtering physics description method based on bipartition model of charge particle transport theory. The comparisons with Monte Carlo data of TRIM code and experimental results are made. The dependences of maximum energy deposition,particle and energy reflection coefficients on the incident energy of energetic runaway electrons impinging on the different material surfaces are also calculated. Results may be useful for estimating the lifetime of PFC and analysing the impurity contamination extent, especially in the PSEEE for high power density and with high plasma current fusion reactor.