中国物理B ›› 2006, Vol. 15 ›› Issue (7): 1486-1491.doi: 10.1088/1009-1963/15/7/018

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

罗正明1, 邓柏权2, 彭利林2, 严建成2, 陈志2   

  1. (1)Center of Radiation Physics, Sichuan University, Chengdu 610064, China; (2)Southwestern Institute of Physics, Chengdu 610041,China
  • 收稿日期:2005-12-08 修回日期:2006-01-12 出版日期:2006-07-20 发布日期:2006-07-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No 19889502).

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

Deng Bai-Quan (邓柏权)a, Peng Li-Lin (彭利林)a, Yan Jian-Cheng (严建成)a, Luo Zheng-Ming (罗正明)b, Chen Zhi (陈志)a   

  1. a Southwestern Institute of Physics, Chengdu 610041, China; b Center of Radiation Physics, Sichuan University, Chengdu 610064, China
  • Received:2005-12-08 Revised:2006-01-12 Online:2006-07-20 Published:2006-07-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No 19889502).

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摘要： To provide some reference data for estimation of the erosion rates and lifetimes of some candidate plasma facing component (PFC) 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.

关键词: sputtering, bipartition model, transport theory, runaway electron

Abstract: To provide some reference data for estimation of the erosion rates and lifetimes of some candidate plasma facing component (PFC) 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.

Key words: sputtering, bipartition model, transport theory, runaway electron

中图分类号:  (Materials)

  • 28.52.Fa
52.25.Fi (Transport properties) 52.77.-j (Plasma applications)