中国物理B ›› 2004, Vol. 13 ›› Issue (11): 1857-1861.doi: 10.1088/1009-1963/13/11/016

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Theoretical calculation of triple differential cross sections of 3s orbital of argon in coplanar symmetric (e, 2e) reaction

吴兴举, 陈向军, 单旭, 陈丽清, 徐克尊   

  1. Hefei National Laboratory for Physical Sciences at Microscale, Laboratory of Bond Selective Chemistry, Modern Physics Department, University of Science and Technology of China, Hefei 230026, China
  • 收稿日期:2004-02-27 修回日期:2004-04-24 出版日期:2004-11-20 发布日期:2005-06-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No 10134010), and by the Natural Science Foundation of Anhui Province, China (Grant No 03046203) and the Natural Science Foundation of Education Commission of Anhui Province, Chi

Theoretical calculation of triple differential cross sections of 3s orbital of argon in coplanar symmetric (e, 2e) reaction

Wu Xing-Ju (吴兴举), Chen Xiang-Jun (陈向军), Shan Xu (单旭), Chen Li-Qing (陈丽清), Xu Ke-Zun (徐克尊)   

  1. Hefei National Laboratory for Physical Sciences at Microscale, Laboratory of Bond Selective Chemistry, Modern Physics Department, University of Science and Technology of China, Hefei 230026, China
  • Received:2004-02-27 Revised:2004-04-24 Online:2004-11-20 Published:2005-06-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No 10134010), and by the Natural Science Foundation of Anhui Province, China (Grant No 03046203) and the Natural Science Foundation of Education Commission of Anhui Province, Chi

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摘要： The triple differential cross section for the low-energy electron impact ionization of inner-valence 3s orbital of argon has been calculated using the modified distorted wave Born approximation in coplanar symmetric energy-sharing geometry. Satisfactory agreement between theory and experiment is achieved when the polarization and post-collisional interaction (PCI) are included in the calculations. It is shown that the polarization and PCI effects play a very important role in the case of argon at low incident energies.

关键词: (e, 2e), distorted wave Born approximation, polarization, coplanar symmetric geometry

Abstract: The triple differential cross section for the low-energy electron impact ionization of inner-valence 3s orbital of argon has been calculated using the modified distorted wave Born approximation in coplanar symmetric energy-sharing geometry. Satisfactory agreement between theory and experiment is achieved when the polarization and post-collisional interaction (PCI) are included in the calculations. It is shown that the polarization and PCI effects play a very important role in the case of argon at low incident energies.

Key words: (e,2e), distorted wave Born approximation, polarization, coplanar symmetric geometry

中图分类号:  (Atomic excitation and ionization)

  • 34.80.Dp