Dielectronic recombination experiment of P-like Tin on HIRFL-CSRm at Lanzhou

28th International Conference on Photonic, Electronic and Atomic Collisions

Xu, W.Q.^1,2 ; Ma, X.^1 ; Wen, W.Q.^1 ; Zhu, X.L.^1 ; Gao, Y.^1,3 ; Wang, S.L.^1,3 ; Zhang, P.J.^1 ; Zhang, R.T.^1 ; Li, B.^1 ; Zhang, Y.^1,3 ; Zhao, D.M.^1 ; Liu, H.P.^1 ; Parkhomchuk, V.V.^4 ; Reva, V.B.^4 ; Yang, X.D.^1 ; Li, J.^1 ; Ma, X.M.^1 ; Yan, T.L.^1 ; Yang, J.C.^1 ; Xia, J.W.^1 ; Yuan, Y.J.^1 ; Xu, H.S.^1 ; Xiao, G.Q.^1 ; Li, C.Y.^5 ; Wang, J.G.^5 ; Zhut, L.F.^2 ; Badnell, N.R.^6

Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, Gansu

730000, China^1

Hefei National Laboratory for Physical Sciences at Microscale, Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui

230026, China^2

University of Chinese Academy of Sciences, Beijing

100049, China^3

Budker Institute of Nuclear Physics, Laverentyeva 11, Novosibirsk

630090, Russia^4

Institute of Applied Physics and Computational Mathematics, Beijing

100088, China^5

Department of Physics, University of Strathclyde, Glasgow

G4 0NG, United Kingdom^6

关键词: Cooler storage ring;    Dielectronic recombinations;    Electron beam energy;    Momentum spreads;    Rate coefficients;    Recombination rate;    Relative energies;    Theoretical calculations;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/488/1/012055/pdf
DOI  :  10.1088/1742-6596/488/1/012055

来源: IOP

【 摘 要 】

Total recombination rate coefficients of112Sn35+ions have been firstly measured by employing the electron-ion merged-beams technique on the main cooler storage ring at Lanzhou. Using an electron beam energy detuning system, we precisely tuned the relative energies from 0 to 6.0 eV between the electron beam and the ion beam (momentum spread Δp/p ∼ 5 × 10-4). A multi-configuration Breit-Pauli calculation utilizing kappa-averaged relativistic orbitals has been carried-out for the recombination rate coefficients. We find that there are obvious differences between the experimental total rate coefficients and the theoretical calculations.