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Multiple ionization of argon accompanied by electron loss and capture of 0.22--6.35 MeV Cq+ ions
陈林, 陈熙萌, 邵剑雄, 鲁彦霞, 丁宝卫, 崔莹, 高志民, 刘玉文, 杜娟, 谢江山, 孙光智, 刘兆远
2007 (8):
2378-2383.
doi: 10.1088/1009-1963/16/8/037
摘要
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In this paper a projectile ions--recoil ions coincidence technique is
employed to investigate the target ionization and projectile charge
state changing processes in the collision of 0.22--6.35 MeVCq+(q = 1-4) ions with argon atoms. The partial cross section
ratios of the double, triple, quadruplicate ionization to the single
ionization (or the single capture) of argon associated with single
electron loss (or single electron capture) by the projectile are
measured and compared with the previous experimental results. In the
present experiment, it is observed that the ratios of ionization
cross sections R associated with single loss and single capture
depend strongly on the projectile charge state and vary significantly
with different reaction channels as impact energy increases. In
addition, this paper gets empirical scaling laws for the ionization
cross section ratios R corresponding to the projectile single loss
and finds that the ratios of the double ionization to the single
ionization associated with single electron capture remain constant in
the present energy range.
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