【摘 要】
：
The influence of surface barrier of solid upon ion reflection was studied in a few papers of other authors by using the Monte-Carlo simulation. Based on the bip
【机 构】
：
Key Lab for Radiation Physics and Technology of the Education Ministry of China
【基金项目】
：
International Atomic Energy Agency;国家自然科学基金
论文部分内容阅读
The influence of surface barrier of solid upon ion reflection was studied in a few papers of other authors by using the Monte-Carlo simulation. Based on the bipartition model of ion transport, a new analytical theory has been developed instead of the MC simulation, due to important implication of the effect for fusion research. In the present paper we have calculated the number reflection coefficients of H+, D+, He and T+ normally incident on C,Al and Cu for ion energy from several eV to one hundred keV respectively. Our computational results accorded with the MC simulation. The results have shown that the effect of surface barrier on ion reflection becomes evident when the energy of incident ions is lower than one keV. In particular, for the ion energy from several eV to one hun dred eV, the discrepancies of number reflection coefficients can increase up to 0.1～0.3, showing this influence to be very important.
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