Electron-impact ionization of W9+ and W10+

doi:10.1088/1674-1056/aca14d

中国物理B ›› 2023, Vol. 32 ›› Issue (6): 63401-063401.doi: 10.1088/1674-1056/aca14d

Electron-impact ionization of W⁹⁺ and W¹⁰⁺

Runjia Bao(鲍润家), Junkui Wei(魏军奎), Lei Chen(陈雷), Bowen Li(李博文)^†, and Ximeng Chen(陈熙萌)

School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China

收稿日期:2022-05-10 修回日期:2022-11-03 接受日期:2022-11-09 出版日期:2023-05-17 发布日期:2023-05-22
通讯作者: Bowen Li E-mail:libw@lzu.edu.cn
基金资助:
Project supported by the National Natural Science Foundation of China (Grant No. 11404152) and Fundamental Research Funds for the Central Universities (Grant No. lzujbky-2017-94).

Electron-impact ionization of W⁹⁺ and W¹⁰⁺

Runjia Bao(鲍润家), Junkui Wei(魏军奎), Lei Chen(陈雷), Bowen Li(李博文)^†, and Ximeng Chen(陈熙萌)

School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China

Received:2022-05-10 Revised:2022-11-03 Accepted:2022-11-09 Online:2023-05-17 Published:2023-05-22
Contact: Bowen Li E-mail:libw@lzu.edu.cn
Supported by:
Project supported by the National Natural Science Foundation of China (Grant No. 11404152) and Fundamental Research Funds for the Central Universities (Grant No. lzujbky-2017-94).

摘要/Abstract

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.

关键词: tungsten ions, electron-impact ionization, relativistic distorted-wave method, metastable states

Abstract: 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.

Key words: tungsten ions, electron-impact ionization, relativistic distorted-wave method, metastable states

中图分类号: (Electronic excitation and ionization of atoms (including beam-foil excitation and ionization))

34.50.Fa

34.80.Dp (Atomic excitation and ionization) 32.80.Aa (Inner-shell excitation and ionization)

Runjia Bao(鲍润家), Junkui Wei(魏军奎), Lei Chen(陈雷), Bowen Li(李博文), and Ximeng Chen(陈熙萌). Electron-impact ionization of W⁹⁺ and W¹⁰⁺[J]. 中国物理B, 2023, 32(6): 63401-063401.

Runjia Bao(鲍润家), Junkui Wei(魏军奎), Lei Chen(陈雷), Bowen Li(李博文), and Ximeng Chen(陈熙萌). Electron-impact ionization of W⁹⁺ and W¹⁰⁺[J]. Chin. Phys. B, 2023, 32(6): 63401-063401.

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Electron-impact ionization of W⁹⁺ and W¹⁰⁺

Electron-impact ionization of W⁹⁺ and W¹⁰⁺

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