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Theoretical study of cross sections of excitation and ionization for electron-ion impact in average-atomic model

Tian Ming-Feng Meng Xu-Jun Zhu Xi-Rui Jiang Min-Hao Wang Zhi-Gang

Theoretical study of cross sections of excitation and ionization for electron-ion impact in average-atomic model

Tian Ming-Feng, Meng Xu-Jun, Zhu Xi-Rui, Jiang Min-Hao, Wang Zhi-Gang
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Publishing process
  • Received Date:  07 January 2005
  • Accepted Date:  02 March 2005
  • Published Online:  05 May 2005

Theoretical study of cross sections of excitation and ionization for electron-ion impact in average-atomic model

  • 1. 北京应用物理与计算数学研究所,计算物理实验室,北京8009信箱 100088

Abstract: By using a distorted-wave Born exchange approximation method in averaged-atomic model, we calculated the direct excitation and direct ionization cross sections of several ions in plasmas. The ionization cross sections of ions at different temperatures or different plasma densities are systematically studied. It is found that due to the shift of the energy levels produced by the effects of the temperature and the density of plasma, the ionization cross sections of ions in plasmas are rather different from those of free atoms.

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