| (e,2e)反应中电子的角度分布 |
| |
| 引用本文： | 贾祥富,陈长进,徐克尊.(e,2e)反应中电子的角度分布[J].计算物理,1998,15(5):553-558. |
| |
| 作者姓名： | 贾祥富 陈长进 徐克尊 |
| |
| 作者单位： | 1. 山西师范大学物理系, 临汾 041004;2. 中国科学技术大学近代物理系, 合肥 230026 |
| |
| 基金项目： | 国家自然科学基金资助课题 |
| |
| 摘 要： | 利用修正的BBK理论模型,在共面,等能分享,固定相对角度几何条件下,计算了能量分别为58.4,68,81.6,108.8和174.4eV的入射电子碰撞He+(1s)(e,2e)反应三重微分截面(TDCS),并讨论了交换,关联与干涉效应及入射道库仑场对TDCS的影响。结果表明,这些效应对决定TDCS的角度分布及大小是非常重要的。
|
| 关 键 词： | He+离子靶 (e 2e)反应 三重微分截面 |
| 收稿时间： | 1997-09-10 |
| 修稿时间： | 1998-04-28 |
ANGULAR DISTRIBUTIONS OF ELECTRONS IN THE (e,2e) REACTION |
| |
| Jia Xiangfu,Chen Zhangjin,Xu Kezun.ANGULAR DISTRIBUTIONS OF ELECTRONS IN THE (e,2e) REACTION[J].Chinese Journal of Computational Physics,1998,15(5):553-558. |
| |
| Authors: | Jia Xiangfu Chen Zhangjin Xu Kezun |
| |
| Institution: | 1. Department of Physics Shanxi Normal University, Linfen 041004;2. Department of Modern Physics University of Science and Technology of China, Hefei 230026 |
| |
| Abstract: | The triple differential cross sections (TDCS) in coplanar equal energy sharing and fixed relative angle geometry for electron impact ionization of He+ are calculated (by using a modified BBK model) at incident electron energies of 58.4,68,81.6,108.8 and 174.4 eV.Dominant ionization mechanisms are identified and the contributions of different scattering amplitudes are discussed.It concludes that Coulomb interaction in the initial channel,exchange effects,correlation and the coherence between electron electron and electron nucleus scattering are all important at these energies. |
| |
| Keywords: | He+ target (e 2e)reaction triple differential cross sections |
|
| 点击此处可从《计算物理》浏览原始摘要信息 |
| 点击此处可从《计算物理》下载免费的PDF全文 |
|
