Resonance-enhanced electron-impact excitation of Cu-like gold

doi:10.1016/j.jqsrt.2017.05.001

	Resonance-enhanced electron-impact excitation of Cu-like gold
	Xia, L.1; Zhang, C. Y.1; Si, R.1; Guo, X. L.2; Chen, Z. B.3; Yan, J.4; Li, S.4; Chen, C. Y.1; Wang, K.5,6
刊名	JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
	2017-09-01
卷号	198 页码:48-58
关键词	Electron-impact excitation Resonance excitation Collision strength Distorted-wave Collisional-radiative model
ISSN号	0022-4073
DOI	10.1016/j.jqsrt.2017.05.001
英文摘要	Employing the independent-process and isolated-resonance approximations using distorted-waves (IPIRDW), we have performed a series of calculations of the resonance-enhanced electron-impact excitations (EIE) among 27 singly excited levels from the n <= 6 configurations of Cu-like gold (Au, Z = 79). Resonance excitation (RE) contributions from both the n = 4 -> 4 - 7 and n = 3 -> 4 core excitations have been considered. Our results demonstrate that RE contributions are significant and enhance the effective collision strengths (Upsilon) of certain excitations by up to an order of magnitude at low temperature (10(6.1) K), and are still important at relatively high temperature (10(7.5) K). Results from test calculations of the resonance-enhanced EIE processes among 16 levels from the n <= 5 configurations using both the Dirac R-matrix (DRM) and IPIRDW approaches agree very well with each other. This means that the close coupling effects are not important for this ion, and thus warrants the reliability of present resonance enhanced EIE data among the 27 levels. The results from the collisional-radiative model (CRM) show that, at 3000 eV, near where Cu-like Au is most abundant, RE contributions have important effects (up to 25%) on the density diagnostic line intensity ratios, which are sensitive near 10(20) cm(-3). The present work is the first EIE research including RE contributions for Cu-like Au. Our EIE data are more accurate than previous results due to our consideration of RE contributions, and the data should be helpful for modeling and diagnosing a variety of plasmas. (C) 2017 Elsevier Ltd. All rights reserved.
资助项目	National Natural Science Foundation of China[11674066] ; National Natural Science Foundation of China[11504421] ; National Natural Science Foundation of China[11474034] ; Nature Science Foundation of Hebei Province, China[A2017201165] ; China Scholarship Council[201608130201] ; Chinese Association of Atomic Molecular Data ; China Postdoctoral Science Foundation[2016M593019] ; Chinese National Fusion Project[2015GB117000] ; Fudan University
WOS关键词	LASER-PRODUCED PLASMA ; ZN-LIKE IONS ; ATOMIC DATA ; AUTOIONIZING RESONANCES ; OSCILLATOR-STRENGTHS ; COLLISION STRENGTHS ; RATE COEFFICIENTS ; IRON PROJECT ; AU IONS ; CO-LIKE
WOS研究方向	Optics ; Spectroscopy
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000404306100005
资助机构	National Natural Science Foundation of China ; Nature Science Foundation of Hebei Province, China ; China Scholarship Council ; Chinese Association of Atomic Molecular Data ; China Postdoctoral Science Foundation ; Chinese National Fusion Project ; Fudan University
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/45029]
专题	中国科学院近代物理研究所
通讯作者	Li, S.; Chen, C. Y.; Wang, K.
作者单位	1.Fudan Univ, Shanghai EBIT Lab, Inst Modern Phys, Dept Nucl Sci & Technol, Shanghai 200433, Peoples R China 2.Second Mil Med Univ, Shanghai Changhai Hosp, Dept Radiotherapy, Shanghai 200433, Peoples R China 3.Natl Univ Def Technol, Coll Sci, Changsha 410073, Hunan, Peoples R China 4.Inst Appl Phys & Computat Math, Beijing 100088, Peoples R China 5.Hebei Univ, Coll Phys Sci & Technol, Hebei Key Lab Opt Elect Informat & Mat, Baoding 071002, Peoples R China 6.Malmo Univ, Grp Mat Sci & Appl Math, SE-20506 Malmo, Sweden
推荐引用方式 GB/T 7714	Xia, L.,Zhang, C. Y.,Si, R.,et al. Resonance-enhanced electron-impact excitation of Cu-like gold[J]. JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER,2017,198:48-58.
APA	Xia, L..,Zhang, C. Y..,Si, R..,Guo, X. L..,Chen, Z. B..,...&Wang, K..(2017).Resonance-enhanced electron-impact excitation of Cu-like gold.JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER,198,48-58.
MLA	Xia, L.,et al."Resonance-enhanced electron-impact excitation of Cu-like gold".JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER 198(2017):48-58.