Dielectronic recombination of Be-like argon at the CSRm

30th International Conference on Photonic, Electronic, and Atomic Collisions

Huang, Z.K.^1 ; Wen, W.Q.^1 ; Xu, X.^2 ; Wang, S.X.^2 ; Wang, H.B.^1 ; Dou, L.J.^1,3 ; Mahmood, S.^1 ; Khan, N.^1,3 ; Xu, W.Q.^4 ; Xu, T.H.^5 ; Yao, K.^5 ; Chuai, X.Y.^1,3 ; Zhu, X.L.^1 ; Zhao, D.M.^1 ; Mao, L.J.^1 ; Yang, J.C.^1 ; Yuan, Y.J.^1 ; Zhu, L.F.^2 ; Ma, X.^1

Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou

730000, China^1

Department of Modern Physics, University of Science and Technology of China, Hefei

230026, China^2

University of Chinese Academy of Sciences, Beijing

100049, China^3

School of Science, Bengbu University, Bengbu

233030, China^4

Institute of Modern Physics, Fudan University, Shanghai

200433, China^5

关键词: Cooler storage ring;    Dielectronic recombinations;    Electron-ion recombinations;    Experimental methods;    Radiative and dielectronic recombinations;    Rate coefficients;    Recombination channels;    Research facilities;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/875/2/012020/pdf
DOI  :  10.1088/1742-6596/875/2/012020

来源: IOP

【 摘 要 】

Electron-ion recombination of Be-like40Ar14+has been measured for the first time at the main Cooler Storage Ring (CSRm) at Heavy Ion Research Facility in Lanzhou (HIRFL), China. The absolute rate coefficients over 0-60 eV electron-ion energy were obtained and all the resonances associated with the Δn=0 dielectronic recombination channel (2s2→2s2p) were studied. In addition to radiative and dielectronic recombination, the recombination spectrum also shows strong contributions from trielectronic recombination channel (2s2→2p2). The experimental method and preliminary results are presented.