中国物理B ›› 2009, Vol. 18 ›› Issue (2): 553-557.doi: 10.1088/1674-1056/18/2/028

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Calculated cross sections for the single ionization of atoms (N, Cu, As, Se, Sn, Sb, Te, I, Pb) by electron impact

陈恒杰1, 侯育君2, 程新路2   

  1. (1)Changchun Institute of Applied Chemistry, Chinese Academy of Science, Changchun 130022, China; (2)Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China
  • 收稿日期:2008-03-13 修回日期:2008-07-08 出版日期:2009-02-20 发布日期:2009-02-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No 10676025).

Calculated cross sections for the single ionization of atoms (N, Cu, As, Se, Sn, Sb, Te, I, Pb) by electron impact

Hou Yu-Jun(侯育君)a), Cheng Xin-Lu(程新路)a)†, and Chen Heng-Jie(陈恒杰)b)   

  1. a Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China; b Changchun Institute of Applied Chemistry, Chinese Academy of Science, Changchun 130022, China
  • Received:2008-03-13 Revised:2008-07-08 Online:2009-02-20 Published:2009-02-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No 10676025).

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摘要： By correcting some primary parameters in the semi-classical Deutsch--M?rk (DM) formula, this paper calculates the absolute single electron-impact ionization cross sections of atoms N, Cu, As, Se, Sn, Sb, Te, I and Pb from threshold to 10000eV. The calculated cross sections are compared with available experimental data and other theoretical results. An excellent agreement was achieved between the calculated and measured cross sections for these atoms over a wide range of impact energies.

关键词: DM formula, ionization cross sections, electron-impact

Abstract: By correcting some primary parameters in the semi-classical Deutsch--Märk (DM) formula, this paper calculates the absolute single electron-impact ionization cross sections of atoms N, Cu, As, Se, Sn, Sb, Te, I and Pb from threshold to 10000eV. The calculated cross sections are compared with available experimental data and other theoretical results. An excellent agreement was achieved between the calculated and measured cross sections for these atoms over a wide range of impact energies.

Key words: DM formula, ionization cross sections, electron-impact

中图分类号:  (Atomic excitation and ionization)

  • 34.80.Dp
31.15.xg (Semiclassical methods)