Experimental dielectronic recombination rate coefficients for lithium-like 40Ca17+

doi:10.1088/1361-6455/ac4cce

	Experimental dielectronic recombination rate coefficients for lithium-like 40Ca17+
	Khan,Nadir 1,2; Huang,Zhong-Kui 1; Wen,Wei-Qiang 1,3; Wang,Shu-Xing 4; Chen,Chong-Yang 2; Zhang,Chun-Yu 2; Wang,Han-Bing 1; Liu,Xin 1; Ma,Wan-Lu 4; Chen,Dong-Yang 1
刊名	Journal of Physics B: Atomic, Molecular and Optical Physics
	2022-02-02
卷号	55 期号:3
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() ; Ma,Xin-Wen()
英文摘要	Abstract The rate coefficients for dielectronic recombination (DR) of lithium-like 40Ca17+ ions with ?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 × 103 to 1 × 107?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.
语种	英语
出版者	IOP Publishing
WOS记录号	IOP:B_55_3_035001
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/142178]
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.Institute of Modern Physics, Chinese Academy of Sciences, 730000, Lanzhou, People’s Republic of China 2.Shanghai EBIT Laboratory, Key Laboratory of Nuclear Physics and Ion-Beam Application (MOE), Institute of Modern Physics, Fudan University, Shanghai 200433, People’s Republic of China 3.University of Chinese Academy of Sciences, 100049, Beijing, People’s Republic of China 4.Hefei National Laboratory for Physical Sciences at Microscale, Department of Modern Physics, University of Science and Technology of China, 230026, Hefei, People’s Republic of China 5.ExtreMe Matter Institute EMMI, GSI Helmholtzzentrum für Schwerionenforschung, 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 40Ca17+[J]. Journal of Physics B: Atomic, Molecular and Optical Physics,2022,55(3).
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 40Ca17+.Journal of Physics B: Atomic, Molecular and Optical Physics,55(3).
MLA	Khan,Nadir,et al."Experimental dielectronic recombination rate coefficients for lithium-like 40Ca17+".Journal of Physics B: Atomic, Molecular and Optical Physics 55.3(2022).