中国物理B ›› 2008, Vol. 17 ›› Issue (4): 1227-1230.doi: 10.1088/1674-1056/17/4/013

• ATOMIC AND MOLECULAR PHYSICS • 上一篇    下一篇

Ionization and single electron capture in collision of highly charged Ar16+ ions with helium

王菲, 芶秉聪   

  1. Department of Physics, Beijing Institute of Technology, Beijing 100081, China
  • 收稿日期:2007-07-29 修回日期:2007-08-30 出版日期:2008-04-01 发布日期:2008-04-01
  • 基金资助:
    Project supported by the Excellent young scholars Research Fund of Beijing Institute of Technology, China (Grant No 000Y07-29), and the National Natural Science Foundation of China (Grant NO 10674015).

Ionization and single electron capture in collision of highly charged Ar16+ ions with helium

Wang Fei(王菲)† and Gou Bing-Cong(芶秉聪)   

  1. Department of Physics, Beijing Institute of Technology, Beijing 100081, China
  • Received:2007-07-29 Revised:2007-08-30 Online:2008-04-01 Published:2008-04-01
  • Supported by:
    Project supported by the Excellent young scholars Research Fund of Beijing Institute of Technology, China (Grant No 000Y07-29), and the National Natural Science Foundation of China (Grant NO 10674015).

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摘要： This paper uses the two-centre atomic orbital close-coupling method to study the ionization and the single electron capture in collision of highly charged Ar16+ ions with He atoms in the velocity range of 1.2--1.9 a.u.. The relative importance of single ionization (SI) to single capture (SC) is explored. The comparison between the calculation and experimental data shows that the SI/SC cross section ratios from this work are in good agreement with experimental data. The total single electron ionization cross sections and the total single electron capture cross sections are also given for this collision. The investigation of the partial electron capture cross section shows a general tendency of capture to larger n and l with increasing velocity from 1.2 to 1.9 a.u..

Abstract: This paper uses the two-centre atomic orbital close-coupling method to study the ionization and the single electron capture in collision of highly charged Ar16+ ions with He atoms in the velocity range of 1.2--1.9 a.u.. The relative importance of single ionization (SI) to single capture (SC) is explored. The comparison between the calculation and experimental data shows that the SI/SC cross section ratios from this work are in good agreement with experimental data. The total single electron ionization cross sections and the total single electron capture cross sections are also given for this collision. The investigation of the partial electron capture cross section shows a general tendency of capture to larger n and l with increasing velocity from 1.2 to 1.9 a.u..

Key words: close-coupling method, electron capture, highly charged ions

中图分类号:  (Electronic excitation and ionization of atoms (including beam-foil excitation and ionization))

  • 34.50.Fa
34.70.+e (Charge transfer)