Electron-impact ionization cross section calculations for lithium-like ions

被引：0

作者：

卞国杰 ^{[1
]}

张稚卿 ^{[2
]}

黄克宁 ^{[3
]}

武晨晟 ^{[1
]}

程勇军 ^{[4
]}

王凯 ^{[5
]}

吴勇 ^{[1
,6
]}

机构：

[1] National Key Laboratory of Computational Physics,Institute of Applied Physics and Computational Mathematics

[2] Department of Physics, National Tsing Hua University

[3] Institute of Atomic and Molecular Physics, Sichuan University

[4] School of Physics and Information Technology, Shaanxi Normal University

[5] Hebei Key Laboratory of Optic-electronic Information and Materials, The College of Physics Science and Technology,Hebei University

[6] HEDPS, Center for Applied Physics and Technology, and College of Engineering, Peking University

来源：

Chinese Physics B | 2022年 / 31卷 / 01期

基金：

中国国家自然科学基金;

关键词：

D O I：

暂无

中图分类号：

O53 [等离子体物理学];

学科分类号：

070204 ;

摘要：

The electron-impact ionization of lithium-like ions C3+, N4+, O5+, Ne7+, and Fe23+is studied using a combination of two-potential distorted-wave and R-matrix methods with a relativistic correction. Total cross sections are computed for incident energies from 1 to 10 times of ionization energy and better agreements with the experimental results are obtained in comparison with the theoretical data available. It is found that the indirect ionization processes become significant for the incident energy larger than about four times of the ionization energy. Contributions from the exchange effects along the isoelectronic sequence are also discussed and found to be important. The present method can be used to obtain systematic ionization cross sections for highly charged ions across a wide incident energy range.

引用

页码：290 / 296

页数：7

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