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 1,4; Su, Maogen1,2,3 ; Cao, Shiquan1 ; Min, Qi1 ; Sun, Duixiong1 ; He, Siqi 1; Lu, Haidong 1; Dong, Chenzhong1,2,3
	2020-12
发表期刊	JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
ISSN	0022-4073
卷号	257
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. © 2020
关键词	Boltzmann equation Collisional plasmas Electron temperature Excited states Ions Laser produced plasmas Plasma devices Spectroscopy Ultraviolet lasers Water vapor Zirconium Zirconium metallography Atomic structure calculations Collisional radiative model Electron plasma frequency Extreme ultraviolet radiations Relativistic correction Spectroscopic diagnostics Temporal and spatial evolutions Theoretical investigations
DOI	10.1016/j.jqsrt.2020.107359
收录类别	EI ; SCIE
语种	英语
WOS研究方向	Optics ; Spectroscopy
WOS类目	Optics ; Spectroscopy
WOS记录号	WOS:000600311200006
出版者	Elsevier Ltd
EI入藏号	20204409423230
EI主题词	Magnetoplasma
EI分类号	549.3 Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals ; 744.1 Lasers, General ; 922 Statistical Methods ; 931.3 Atomic and Molecular Physics ; 932.3 Plasma Physics
原始文献类型	Journal article (JA)
引用统计	被引频次：2[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.nwnu.edu.cn/handle/39RV6HYL/72887
专题	直属单位_学报编辑部学校领导实体学院_物理与电子工程学院学校领导_学校领导科研机构_甘肃省原子分子物理与功能材料重点实验室
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.Northwest Normal Univ, Joint Lab Atom & Mol Phys, Lanzhou 730070, Peoples R China; 3.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730070, Peoples R China; 4.Univ Holy Quran & Islamic Sci, Dept Phys, Fac Educ, POB 1459, Khartoum 14412, Sudan
第一作者单位	甘肃省原子分子物理与功能材料重点实验室
通讯作者单位	甘肃省原子分子物理与功能材料重点实验室
第一作者的第一单位	甘肃省原子分子物理与功能材料重点实验室
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.
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.
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).