Experimental and theoretical investigation of EUV radiation behavior of laser-produced Zr plasmas

doi:10.1016/j.jqsrt.2020.107359

	Experimental and theoretical investigation of EUV radiation behavior of laser-produced Zr plasmas
	Bakhiet, Mohammedelnazier 1,3; Su, Maogen 1,2,4; Cao, Shiquan 1; Min, Qi 1; Sun, Duixiong 1; He, Siqi 1; Lu, Haidong 1; Dong, Chenzhong 1,2,4
刊名	JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
	2020-12-01
卷号	257 页码:11
关键词	Extreme ultraviolet spectra Laser-produced plasmas Collisional-radiative model Zirconium
ISSN号	0022-4073
DOI	10.1016/j.jqsrt.2020.107359
通讯作者	Su, Maogen(sumg@nwnu.edu.cn) ; Dong, Chenzhong(dongcz@nwnu.edu.cn)
英文摘要	Extreme ultraviolet radiation of laser-produced zirconium (Zr) plasmas were measured in the 6.7-14.7 nm region using a spatio-temporally resolved laser-produced plasma spectroscopy technique. At shorter wavelengths, the spectrum was dominated by several lines attributed to the 4s-(6p,7p,8p) transition arrays of Zr6+ to Zr10+ ions. For the 4s-5p and 4p-6 s transitions, the spectral lines concentrated near 11.18 nm and smoothly move towards longer wavelengths with decreasing ion-charge-state, which are experimentally and theoretically investigated. The Hartree-Fok (HF) method with relativistic corrections (HFR) using the Cowan's codes and Flexible Atomic Code (FAC) were used to calculate and interpret the observed spectra, respectively. At relatively high temperatures, lines from 3p-3d transitions in Zr13+ and Zr14+ ions have been found to have an important contribution. A number of spectral lines are established in this study for the first time. Besides the atomic structure calculations, a numerical computation based on the assumption of a normalized Boltzmann distribution among the excited states associated with a steady-state collisional-radiative model (CR), has also been performed to obtain the plasma parameters by comparing the experimental and simulated spectra. The corresponding dominant ion stages and ion fractions for different ion stages were obtained. We have also provided the evolution of rate coefficients as a function of electron density and electron temperature. We reproduced synthetic spectra which are in good agreement with the experiment. Temporal and spatial evolution behavior about plasma parameters have been analyzed. The variation of electron plasma frequency and skin depth with plasma temperature were introduced. The results may be beneficial for spectroscopic diagnostics of hot plasmas in tokamak and fusion research. (C) 2020 Elsevier Ltd. All rights reserved.
资助项目	National Key Research and Development Program of China[2017YFA0402300] ; National Natural Science Foundation of China (NSFC)[11874051] ; National Natural Science Foundation of China (NSFC)[11904293] ; National Natural Science Foundation of China (NSFC)[61965015] ; China Scholarship Council (CSC)[2015BSZ887] ; Special Fund Project for Guiding Scientific and Technological Innovation of Gansu Province, China[2019zx-10]
WOS关键词	IONIZED ZIRCONIUM ; TRANSITIONS ; SPECTROSCOPY ; SPECTRA ; XIII ; XIV ; XV
WOS研究方向	Optics ; Spectroscopy
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000600311200006
资助机构	National Key Research and Development Program of China ; National Natural Science Foundation of China (NSFC) ; China Scholarship Council (CSC) ; Special Fund Project for Guiding Scientific and Technological Innovation of Gansu Province, China
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/138480]
专题	中国科学院近代物理研究所
通讯作者	Su, Maogen; Dong, Chenzhong
作者单位	1.Northwest Normal Univ, Key Lab Atom & Mol Phys & Funct Mat Gansu Prov, Coll Phys & Elect Engn, Lanzhou 730070, Peoples R China 2.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730070, Peoples R China 3.Univ Holy Quran & Islamic Sci, Dept Phys, Fac Educ, POB 1459, Khartoum 14412, Sudan 4.Northwest Normal Univ, Joint Lab Atom & Mol Phys, Lanzhou 730070, Peoples R China
推荐引用方式 GB/T 7714	Bakhiet, Mohammedelnazier,Su, Maogen,Cao, Shiquan,et al. Experimental and theoretical investigation of EUV radiation behavior of laser-produced Zr plasmas[J]. JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER,2020,257:11.
APA	Bakhiet, Mohammedelnazier.,Su, Maogen.,Cao, Shiquan.,Min, Qi.,Sun, Duixiong.,...&Dong, Chenzhong.(2020).Experimental and theoretical investigation of EUV radiation behavior of laser-produced Zr plasmas.JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER,257,11.
MLA	Bakhiet, Mohammedelnazier,et al."Experimental and theoretical investigation of EUV radiation behavior of laser-produced Zr plasmas".JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER 257(2020):11.