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Double Ionization of Helium by Partially Stripped Oxygen Ions |
CAI Xiao-hong1,2;SHEN Zi-yong1;CHEN Xi-meng1;LIU Zhao-yuan1;LIU Hui-ping2;MA Xin-wen2;HOU Ming-dong2
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1Department of Modern Physics, Lanzhou University, Lanzhou 730000
2Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000
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Cite this article: |
CAI Xiao-hong, SHEN Zi-yong, CHEN Xi-meng et al 1996 Chin. Phys. Lett. 13 428-431 |
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Abstract New measurement of the ratio of the double ionization cross section to that of the single ionization of helium induced by 2.0-7.5 MeV partially stripped Oq+ ion (q = 1,2,3,4) is presented. Combining the measured data with the Olson-Schlachter scaling, the double ionization cross section of helium by partially stripped oxygen ion is obtained. It is found that the v/qeff dependence of the obtained double ionization cross section agrees well with the (v/qeff)-4 law.
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Keywords:
34.50.Fa
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Published: 01 June 1996
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PACS: |
34.50.Fa
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(Electronic excitation and ionization of atoms (including beam-foil excitation and ionization))
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