Experimental dielectronic recombination rate coefficients for lithium-like Ca-40(17+) | |
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 |
2022-02-02 | |
卷号 | 55期号:3页码:10 |
关键词 | atomic data heavy ion storage ring dielectronic recombination plasma rate coefficient |
ISSN号 | 0953-4075 |
DOI | 10.1088/1361-6455/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. |
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关键词 | COLLISIONAL IONIZATION EQUILIBRIUM ; HIGHLY IONIZED CALCIUM ; FINITE-DENSITY PLASMAS ; OPTICALLY THIN PLASMAS ; X-RAY-SPECTRA ; SOLAR-FLARE ; IONS ; FE ; MG ; CA |
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 |
内容类型 | 期刊论文 |
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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