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Resonance enhanced electron impact excitation for P-like Cu XV |
| Li Shuang (李双)a b, Yan Jun (颜君)c d, Li Chuan-Ying (李传莹)c, Huang Min (黄敏)a b, Chen Chong-Yang (陈重阳)a b |
a Applied Ion Beam Physics Laboratory, Fudan University, Shanghai 200433, China;
b Shanghai EBIT Lab, Institute of Modern Physics, Department of Nuclear Science and Technology, Fudan University, Shanghai 200433, China;
c Institute of Applied Physics and Computational Mathematics, Beijing 100088, China;
d Center for Applied Physics and Technology, Peking University, Beijing 100871, China |
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Abstract Employing both the Dirac R-matrix and the relativistic distorted wave with independent process and isolated resonance approaches, we report resonance enhanced electron impact excitation data (specifically, effective collision strengths) among the lowest 41 levels from the n=3 configurations of Cu XV. The results show that the latter approach can obtain resonance contributions reasonably well for most excitations of Cu XV, though a comparison between the two approaches shows that the close-coupling effects are truly significant for rather weak excitations, especially for two-electron excitations from the 3s3p4 to 3s23p23d configuration. Resonance contributions are significant (more than two orders of magnitude) for many excitations and dramatically influence the line intensity ratios associated with density diagnostics.
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Received: 21 May 2015
Revised: 30 June 2015
Accepted manuscript online:
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PACS:
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34.50.Fa
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(Electronic excitation and ionization of atoms (including beam-foil excitation and ionization))
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34.80.Dp
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(Atomic excitation and ionization)
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| Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 11076009 and 11374062), the Chinese Association of Atomic and Molecular Data, the Chinese National Fusion Project for ITER (Grant No. 2015GB117000), and the Leading Academic Discipline Project of Shanghai, China (Grant No. B107). |
Corresponding Authors:
Chen Chong-Yang
E-mail: chychen@fudan.edu.cn
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Cite this article:
Li Shuang (李双), Yan Jun (颜君), Li Chuan-Ying (李传莹), Huang Min (黄敏), Chen Chong-Yang (陈重阳) Resonance enhanced electron impact excitation for P-like Cu XV 2015 Chin. Phys. B 24 113401
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