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Experimental dielectronic recombination rate coefficients for lithium-like Ca-40(17+)

文献类型：期刊论文

作者Khan, Nadir1,2; Huang, Zhong-Kui1; Wen, Wei-Qiang1,3; Wang, Shu-Xing4; Chen, Chong-Yang2; Zhang, Chun-Yu2; Wang, Han-Bing1; Liu, Xin1; Ma, Wan-Lu4; Chen, Dong-Yang1
刊名JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS
出版日期2022-02-02
卷号55期号:3页码:10
ISSN号0953-4075
关键词atomic data heavy ion storage ring dielectronic recombination plasma rate coefficient
DOI10.1088/1361-6455/ac4cce
通讯作者Wen, Wei-Qiang(wenweiqiang@impcas.ac.cn) ; Ma, Xin-Wen(x.ma@impcas.ac.cn)
英文摘要The rate coefficients for dielectronic recombination (DR) of lithium-like Ca-40(17+) ions with increment n = 0 core excitations are derived from electron-ion recombination spectra measured with merged-beams method at the heavy-ion storage ring CSRm. The experimental DR spectrum, in the electron-ion collision energy range of 0 to 42 eV in the center-of-mass frame, comprises of all DR resonance peaks belong to the 2s (2) S (1/2) -> 2p (2) P (1/2, 3/2) core excitations. The resonant energies and strengths for the resolved resonances in 2pjnl series are determined by fitting of the measured DR peaks. The further interpretation of the measured DR rate coefficients has been performed by calculating the DR rate coefficients with relativistic configuration-interaction method implemented in flexible atomic code (FAC) and compared with the experimental results. The experimental results and FAC calculations are found to be in a good agreement within the experimental uncertainties. Moreover, temperature dependent plasma rate coefficients were constructed from 4 x 10(3) to 1 x 10(7) K energy region by convoluting experimental and theoretical DR rate coefficients with the Maxwellian energy distribution function and then compared with previously available data. The plasma DR rate coefficient is found to be significantly underestimated by the early theoretical data calculated by Jacobs et al, and Mazotta et al in the low temperature. In contrast, a very good agreement has been found between the theoretical DR data of Gu and Colgan et al and the presently measured results at the low temperature region. Therefore, the results in this work composed of a bench-mark data set for plasma modeling at the photoionized temperature range. We have also provided a fit to our measured and theoretical plasma rate coefficients for low temperature plasma modeling.
WOS关键词COLLISIONAL IONIZATION EQUILIBRIUM ; HIGHLY IONIZED CALCIUM ; FINITE-DENSITY PLASMAS ; OPTICALLY THIN PLASMAS ; X-RAY-SPECTRA ; SOLAR-FLARE ; IONS ; FE ; MG ; CA
资助项目National Key R&D Program of China[2017YFA0402300] ; National Natural Science Foundation of China[U1932207] ; National Natural Science Foundation of China[11904371] ; National Natural Science Foundation of China[U1732133] ; National Natural Science Foundation of China[11674066] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB34020000] ; Youth Innovation Promotion Association CAS
WOS研究方向Optics ; Physics
语种英语
出版者IOP Publishing Ltd
WOS记录号WOS:000757618100001
资助机构National Key R&D Program of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; Youth Innovation Promotion Association CAS
源URL[http://119.78.100.186/handle/113462/142035]  
专题中国科学院近代物理研究所
通讯作者Wen, Wei-Qiang; Ma, Xin-Wen
作者单位1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
2.Fudan Univ, Inst Modern Phys, Key Lab Nucl Phys & Ion Beam Applicat MOE, Shanghai EBIT Lab, Shanghai 200433, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Univ Sci & Technol China, Dept Modern Phys, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Peoples R China
5.GSI Helmholtzzentrum Schwerionenforsch, ExtreMe Matter Inst EMMI, D-64291 Darmstadt, Germany
推荐引用方式
GB/T 7714		 Khan, Nadir,Huang, Zhong-Kui,Wen, Wei-Qiang,et al. Experimental dielectronic recombination rate coefficients for lithium-like Ca-40(17+)[J]. JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS,2022,55(3):10.
APA Khan, Nadir.,Huang, Zhong-Kui.,Wen, Wei-Qiang.,Wang, Shu-Xing.,Chen, Chong-Yang.,...&Ma, Xin-Wen.(2022).Experimental dielectronic recombination rate coefficients for lithium-like Ca-40(17+).JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS,55(3),10.
MLA Khan, Nadir,et al."Experimental dielectronic recombination rate coefficients for lithium-like Ca-40(17+)".JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS 55.3(2022):10.

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来源：近代物理研究所

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