西北师范大学学报（自然科学版）2026，Vol.62Issue(2)：40-50,11.DOI:10.16783/j.cnki.nwnuz.2026.02.003
高电荷态离子电子碰撞电离过程研究综述
A review of electron-impact ionization processes for highly charged ions
摘要
Abstract
Electron-impact ionization is a fundamental atomic collision process and ubiquitous in various plasmas.Investigations into electron impact ionization processes can provide insight into microscopic atomic collision dynamics and atomic data for related research fields.Our research group has developed theoretical methods for studying the single and double ionization of highly charged ions.We systematically researched the electron-impact single ionization of tungsten and stannum ions,which is of interest in fusion plasmas and EUV lithography,as well as the double ionization of low-Z ions.The ionization cross sections and rate coefficients are calculated,which agree with experimental data.Additionally,we analyze the contributions and competitions among different ionization channels,revealing the mechanisms underlying single and double ionization for highly charged ions.The obtained results and theoretical models could provide theoretical support for experimental studies on electron-impact ionization processes,as well as for fields such as astrophysics,nuclear fusion physics,weapons physics,and related industries.关键词
高电荷态离子/电子碰撞单电离/电子碰撞双重电离/扭曲波方法/Knockout机制/Two step近似Key words
highly charged ion/electron-impact single ionization/electron-impact double ionization/distorted-wave approximation/Knockout mechanism/Two-step approximation分类
数理科学引用本文复制引用
马玉龙,张登红,董晨钟..高电荷态离子电子碰撞电离过程研究综述[J].西北师范大学学报（自然科学版）,2026,62(2):40-50,11.基金项目
国家重点研发计划项目(2022YFA1602501) （2022YFA1602501）
国家自然科学基金资助项目(12374384,12364034,12274352,12104373,12064041) （12374384,12364034,12274352,12104373,12064041）
