Ionization of highly charged iodine ions near the Bohr velocity
Ionization of highly charged iodine ions near the Bohr velocity
复制标题
接近玻尔速度的高电荷碘离子的电离
DOI：
10.1016/j.nimb.2014.09.030
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发表时间：
2015-01-01
影响因子：
1.3
通讯作者：
Xiao, Guoqing
中科院分区：
文献类型：
--
作者：
Zhou, Xianming;Cheng, Rui;Xiao, Guoqing
我们测量了 3 MeV I-q+(q=15,I-20,I-22,I-25,I-26) 离子与铁靶碰撞时产生的碘的 L 壳层 X 射线。研究发现，X射线产率随着初始电荷态的增加而降低。亚壳层X射线的能量有蓝移，与弹丸荷电状态无关。此外，还获得了L beta(1,3,4)和L beta(2,15)与L alpha(1,2)X射线的相对强度比，并与理论计算结果进行了比较。它们比单个电离原子大可以通过外壳电子的多重电离效应来理解。 (C) 2014 Elsevier B.V. 保留所有权利。
We have measured the L-shell X-rays of iodine from the collisions of 3 MeV I-q+(q=15,I-20,I-22,I-25,I-26) ions with an iron target. It is found that the X-ray yield decreases with the increasing initial charge state. The energy of the subshell X-ray has a blue shift, which is independent of the projectile charge state. In addition, the relative intensity ratios of L beta(1,3,4) and L beta(2,15) to L alpha(1,2) X-ray are obtained and compared with the theoretical calculations. That they are larger than for a singly ionized atom can be understood by the multiple ionization effect of the outer-shell electrons. (C) 2014 Elsevier B.V. All rights reserved.