Effect of the generalized Breit interaction on the K-shell x-ray spectra of hot krypton plasmas

被引：1

作者：

Zhou, Li ^{[1
]}

Yang, Zhihao ^{[2
,3
]}

He, Zhencen ^{[1
,4
]}

Luo, Tianluo ^{[1
]}

Duan, Mingliang ^{[1
]}

An, Zhu ^{[1
]}

Hu, Zhimin ^{[1
]}

机构：

[1] Sichuan Univ, Inst Nucl Sci & Technol, Key Lab Radiat Phys & Technol, Minist Educ, Chengdu 610064, Peoples R China

[2] Sichuan Univ Arts & Sci, Sch Intelligent Mfg, Dazhou 63500, Peoples R China

[3] DaZhou Ind Technol Inst Intelligent Mfg, Dazhou 635000, Peoples R China

[4] Fudan Univ, Key Lab Nucl Phys & Beam Applict MOE, Shanghai 200433, Peoples R China

来源：

JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER | 2023年 / 297卷

基金：

中国国家自然科学基金;

关键词：

K -shell spectra; Plasma diagnostics; Generalized Breit interaction; Collisional-radiative model; ELECTRON-TEMPERATURE; SPIN INTERACTIONS; IONS; HYDROGENLIKE; SPECTROSCOPY; IONIZATION; EXCITATION; LINES; HE;

D O I：

10.1016/j.jqsrt.2022.108469

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

K-shell spectra are widely used for the plasma diagnostics in fusion science and astrophysics. Here, we report on a theoretical investigation of the relativistic and QED effects, i.e., the Breit interaction (BI) or the generalized Breit interaction (GBI), on the simulation of K-shell x-ray spectra of hot krypton plasmas. The simulation was conducted using a collisional-radiative model, for which the atomic parameters were generated by using the flexible atomic code. As expected, the present work shows that the BI and GBI produce similar effects for such a light element as krypton, which maximum difference of 3.7% in the emission spectra. When comparing to results calculated with just the Coulomb interaction, the GBI af-fects the specific line intensity by up to 15%, thus bringing about approximately 4%, 13% uncertainties for deducing the electron density and temperature of plasmas, respectively. (c) 2022 Elsevier Ltd. All rights reserved.

引用

页数：8

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