%0 Journal Article
%T CDW-EIS calculation in He2++H impact ionization<br>He2+离子与H原子的重粒子碰撞电离过程
%A Ning Ye
%A He Bin
%A Liu Chun-Lei
%A Yan Jun
%A Wang Jian-Guo
%A <br>宁 烨
%A 何 斌
%A 刘春雷
%A 颜 君
%A 王建国
%J 物理学报
%D 2005
%I 
%X The He 2+ +H Impact Ionization process is investigated using a continuum distorted wave method with the eikonal initial_state(CDW_EIS) approximation.The total,single_ and double_differential cross sections are obtained in the projectile energy ranges from 30keV/u to 2000keV/u.The total cross sections are compared with the existing theoretical and experimental data.When the projectile energy is larger than 100keV/u,our results are in good agreement with the experimental measurements,while about 50% less than experimental data in the lower energy range.The ionization mechanism of soft_collisions,electron captured to continuum states and binary_encounter collisions are also displayed.
%K heavy particle impact ionization
%K continuum distorted wave-eikonal initial approximation
%K total cross section
%K single- and double-differential cross section<br>电离过程
%K H原子
%K 粒子碰撞
%K 微分散射截面
%K 电子平均能量
%K 碰撞电离
%K 离子能量
%K 入射离子
%K 计算结果
%K 扭曲波方法
%K 程函近似
%K 电子能量
%K 电离截面
%K 能量变化
%K 电子俘获
%K 总截面
%K 实验
%K 软碰撞
%K 连续态
%K 二阶
%K 一阶
%K 相遇
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=7AB0DB3ACB994DEC&yid=2DD7160C83D0ACED&vid=318E4CC20AED4940&iid=DF92D298D3FF1E6E&sid=A467750D95BC396C&eid=EFBD42109B48A699&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=27