摘要
应用库仑散射公式,通过计算离子与原子碰撞过程中原子的反冲动能,给出了中低能轻离子核能损的表达式.计算了10keV^10 MeV范围的H^+,He^(2+)离子在Si,Fe和Au固体靶中的核能损.结果表明,离子核能损随靶原子序数的增大而增大,随离子能量的增大而减小,计算数据与用SRIM 2008软件计算的结果符合得较好.
Using Coulomb scattering formula, the expression of nuclear energy loss of light ions in material with low energy is given,through calculating recoil energy of collisions between ions and atoms. The nuclear energy loss of H ＋ , He2 ＋ ion in Si,Fe and Au target is calculated in the energy rang of 10 keV^10 MeV.The results show that the nuclear energy loss increases with increasing of the target atomic number,and decreases with increasing of the ion energy. The calculated results are in good agreement with that calculated by SRIM 2008.
出处
《西北师范大学学报（自然科学版）》
CAS
北大核心
2016年第6期42-45,共4页
Journal of Northwest Normal University(Natural Science)
基金
国家自然科学基金资助项目(11505248
11605147)
陕西省教育厅科研计划资助项目(16JK1821)
关键词
离子能量
原子反冲动能
离子核能损
ion energy
atomic recoil kinetic energy
nuclear energy loss of ion
