Electron-impact ionization of W9+ and W10+

被引：5

作者：

Bao, Runjia ^{[1
]}

Wei, Junkui ^{[1
]}

Chen, Lei ^{[1
]}

Li, Bowen ^{[1
]}

Chen, Ximeng ^{[1
]}

机构：

[1] Lanzhou Univ, Sch Nucl Sci & Technol, Lanzhou 730000, Peoples R China

来源：

CHINESE PHYSICS B | 2023年 / 32卷 / 06期

基金：

中国国家自然科学基金;

关键词：

tungsten ions; electron-impact ionization; relativistic distorted-wave method; metastable states;

D O I：

10.1088/1674-1056/aca14d

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Electron-impact single-ionization (EISI) cross sections for W q+ (q = 9, 10) ions have been calculated by using the level-to-level distorted-wave (LLDW) method with emphasis on the contribution of metastable states to the total ionization cross sections. Contributions from direct-ionization (DI) and excitation-autoionization (EA) processes are taken into account. The calculated cross sections include the contributions from both the ground configuration and the long-lived metastable states with lifetimes exceeding 10(-6) s. Calculated cross sections are in good agreement with experimental measurements when the influence of metastable states on the total ionization cross section are well considered.

引用

页数：10

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