Theoretical investigations on electron-impact single-ionization cross section of Sn 11+

被引：1
作者：
Zhang, Fangjun [1 ]
Ding, Xiaobin [1 ]
Gao, Cheng [2 ]
Zhang, Denghong [1 ]
Zeng, Jiaolong [2 ,3 ]
Dong, Chenzhong [1 ]
机构：
[1] Northwest Normal Univ, Coll Phys & Elect Engn, Key Lab Atom & Mol Phys & Funct Mat Gansu Prov, Lanzhou 730070, Peoples R China
[2] Natl Univ Def Technol, Coll Sci, Dept Phys, Changsha 410073, Hunan, Peoples R China
[3] Zhejiang Univ Technol, Coll Sci, Hangzhou 310023, Peoples R China
来源：
PHYSICA SCRIPTA | 2024年 / 99卷 / 03期
基金：
中国国家自然科学基金;
关键词：
electron-impact ionization; excitation-auto-ionization; resonant excitation double auto-ionization; EXCITATION; EVOLUTION; SPECTRA; IONS;
D O I：
10.1088/1402-4896/ad2756
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The total cross-section of electron-impact single ionization for the ground configuration 3d(10)4s(2)4p(6)4d(3) and excited configuration 3d(10)4s(2)4p(6)4d(2)4f of Sn11+ is determined from the ionization threshold to 1000 eV. The contributions of direct ionization, excitation auto-ionization, and resonant excitation double auto-ionization to the total electron-impact single ionization cross-section are systematically demonstrated. The cross-section of direct ionization and excited auto-ionization are determined using the level-to-level method, while the cross-section of partially resonant excited double auto-ionization are determined through the configuration averaged method. To obtain convergence, excitation channels with the maximum principal quantum number up to n = 25 are considered. A comparison of the present results with the experimental data [Borovik et al. J. Phys. B 46, 175 201 (2013)] reveal considerably improved agreement when including the resonant excitation double auto-ionization in the calculation.
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页数：10
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