Identification of optical lines from Ca-like Br15+, Kr16+, Zr20+, and Rh25+ ions at an electron beam ion trap

被引：6

作者：

Jiang, Zihuan ^{[1
,2
]}

Qian, Yuyuan ^{[1
,2
]}

Xu, Pengcheng ^{[1
,2
]}

Khan, Nadir ^{[1
,2
]}

Meng, Shiyan ^{[1
,2
]}

Niu, Ben ^{[1
,2
]}

Zhang, Ling ^{[3
]}

Ding, Xiaobin ^{[4
]}

Huang, Liangyu ^{[1
,2
]}

Tu, Bingsheng ^{[1
,2
]}

Fu, Yunqing ^{[1
,2
]}

Zou, Yaming ^{[1
,2
]}

Yao, Ke ^{[1
,2
]}

机构：

[1] Fudan Univ, Inst Modern Phys, Shanghai EBIT Lab, Shanghai 200433, Peoples R China

[2] Fudan Univ, Inst Modern Phys, Key Lab Nucl Phys & Ion Beam Applicat MOE, Shanghai 200433, Peoples R China

[3] Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China

[4] Northwest Normal Univ, Coll Phys & Elect Engn, Key Lab Atom & Mol Phys & Funct Mat Gansu Prov, Lanzhou 730070, Peoples R China

来源：

PHYSICS LETTERS A | 2023年 / 463卷

基金：

中国国家自然科学基金;

关键词：

Magnetic dipole transition; Ca -like ions; EBIT; MCDHF; CO-VIII;

D O I：

10.1016/j.physleta.2023.128669

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The spectroscopic investigation of optical spectra of Ca-like Br15+, Kr16+, Zr20+, and Rh25+ ions at an electron beam ion trap was presented. In the region of 200-700 nm, ten spectral lines emitted from these ions were identified, eight of which were reported for the first time. The multiconfiguration DiracHartree-Fock and relativistic configuration interaction methods were employed in the calculations of energy levels and transition rates, in which the Breit interaction and QED effects were taken into account, and the contributions of core-valence and core-core correlations were found to be essential. The present results showed a good agreement between the theory and the experiment in general. For four lines, the discrepancies between the calculated and measured wavelengths were larger than 1.5%, and our accurate experimental results could be reference data for further calculations. (c) 2023 Elsevier B.V. All rights reserved.

引用

页数：6