中国物理B ›› 1997, Vol. 6 ›› Issue (1): 6-12.doi: 10.1088/1004-423X/6/1/002

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THE MULTIPLE IONIZATION OF ARGON INDUCED BY PARTIALLY STRIPPED CARBON IONS

申自勇1, 陈熙萌1, 刘兆远1, 蔡晓红2, 马新文3, 刘惠萍3, 侯明东3   

  1. (1)Department of Modern Physics，Lanzhou University,Lanzhou 730000，China; (2)Institute of Modern Physics，Academia Sinica，Lanzhou 730000，China; (3)Institute of Modern Physics，Academia Sinica，Lanzhou 730000，China
  • 收稿日期:1995-12-28 出版日期:1997-01-20 发布日期:1997-01-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China.

THE MULTIPLE IONIZATION OF ARGON INDUCED BY PARTIALLY STRIPPED CARBON IONS

CAI XIAO-HONG (蔡晓红)ab, SHEN ZI-YONG (申自勇)a, CHEN XI-MENG (陈熙萌)a, LIU ZHAO-YUAN (刘兆远)a, MA XIN-WEN (马新文)b, LIU HUI-PING (刘惠萍)b, HOU MING-DONG (侯明东)b   

  1. a Department of Modern Physics，Lanzhou University, Lanzhou 730000，China; b Institute of Modern Physics，Academia Sinica，Lanzhou 730000，China
  • Received:1995-12-28 Online:1997-01-20 Published:1997-01-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China.

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摘要： The cross section ratios of the double, triple and quadruplicate ionization to the single ionization of argon by 1.5-7.5 MeV partially stripped carbon ions are measured by using time-of-flight technique. The Auger transition and the charge exchange process in the multiple ionization of argon are studied. The ratios of cross sections of the direct multiple ionization to those of the direct single ionization are obtained by subtracting the parts of the Auger transition and the charge exchange process from the measured data. It is found that the cross section ratios of the direct multiple ionization to those of the direct single ionization are in good agreement with the predicted mniti-step (ν/qeff)-2n+2 law.

Abstract: The cross section ratios of the double, triple and quadruplicate ionization to the single ionization of argon by 1.5-7.5 MeV partially stripped carbon ions are measured by using time-of-flight technique. The Auger transition and the charge exchange process in the multiple ionization of argon are studied. The ratios of cross sections of the direct multiple ionization to those of the direct single ionization are obtained by subtracting the parts of the Auger transition and the charge exchange process from the measured data. It is found that the cross section ratios of the direct multiple ionization to those of the direct single ionization are in good agreement with the predicted mniti-step ($\nu$/qeff)-2n+2 law.

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)