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.
Received: 08 December 2005
Published: 20 July 2006
Fund: Project supported by the National Natural Science Foundation of China (Grant No 19889502).
Cite this article:
Deng Bai-Quan, Peng Li-Lin, Yan Jian-Cheng, Luo Zheng-Ming, Chen Zhi Damaging impacts of energetic charge particles on materials in plasma energy explosive events 2006 Chin. Phys. 15 1486