原子的电子碰撞电离截面的高精度计算

计算物理 ›› 1992, Vol. 9 ›› Issue (3): 241-249.

原子的电子碰撞电离截面的高精度计算

陈学俊

清华大学现代应用物理系, 北京 100084

收稿日期:1991-07-15 修回日期:1992-03-30 出版日期:1992-09-25 发布日期:1992-09-25
基金资助:
国家自然科学基金

AN ACCURATE CALCULATION FOR IMPACT IONIZATION CROSS SECTIONS OF ATOMS BY ELECTRON

Chen Xuejun

Department of Modern Applied Physics, Tsinghua University, Beijing 100084, China

Received:1991-07-15 Revised:1992-03-30 Online:1992-09-25 Published:1992-09-25

摘要/Abstract

摘要： 本文详细描述了电子-原子碰撞电离截面的高精度计算的有关问题,着重论述了包含三个库仑散射波函数的6重积分如何简化成2重积分的方法。

关键词: 原子电子碰撞, 电离截面

Abstract: A theoretical method called multiple-scattering expansion was proposed and developed by author in the previous works^[1].This method has a few advantages, such as,high accuracy, simplicity for calculations and wide valid region. This method has been applied to calculations for the impact ionization cross sections of H-atoms, and the results are in agreement with the experimental data very well^[2]. A detailed description for practical calculations based on this method is given in the present paper.

Key words: electron-atom collision, ionization cross section

陈学俊. 原子的电子碰撞电离截面的高精度计算[J]. 计算物理, 1992, 9(3): 241-249.

Chen Xuejun. AN ACCURATE CALCULATION FOR IMPACT IONIZATION CROSS SECTIONS OF ATOMS BY ELECTRON[J]. CHINESE JOURNAL OF COMPUTATIONAL PHYSICS, 1992, 9(3): 241-249.