|
Multiple ionization of argon accompanied by electron loss and capture of 0.22--6.35 MeV Cq+ ions
Chen Lin(陈林), Chen Xi-Meng(陈熙萌), Shao Jian-Xiong(邵剑雄), Lu Yan-Xia(鲁彦霞), Ding Bao-Wei(丁宝卫), Cui Ying(崔莹), Gao Zhi-Min(高志民), Liu Yu-Wen(刘玉文), Du Juan(杜娟), Xie Jiang-Shan(谢江山), Sun Guang-Zhi(孙光智), and Liu Zhao-Yuan(刘兆远)
Chinese Physics, 2007, 16 (8):
2378-2383.
DOI: 10.1088/1009-1963/16/8/037
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 MeV Cq+(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.
|