Total cross sections for different charge changing processes in collisions of highly charged Xe ions with He atoms at low energy
Total cross sections for different charge changing processes in collisions of highly charged Xe ions with He atoms at low energy
复制标题
高电荷 Xe 离子与低能量 He 原子碰撞时不同电荷变化过程的总横截面
DOI：
10.1088/0953-4075/21/8/003
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发表时间：
1988
期刊：
影响因子：
--
通讯作者：
H. Cederquist
中科院分区：
文献类型：
--
作者：
H. Andersson;G. Astner;H. Cederquist
对于电荷态高达31的氙离子，与氦气靶碰撞，作者测量了低能量（4q keV）下不同可能电荷变化过程的绝对总横截面。弹丸和后坐力离子被记录在巧合中，允许从其飞行时间确定后坐力电荷状态。对于弹丸获得一个电子的反应，那些目标失去两个电子的反应（“转移电离”）总是占总横截面的很大一部分。对于“真正的”双电子转移，横截面总是很小（大约=10-16 cm2），并且作为抛射电荷的函数不显着变化。
For xenon ions with charge states up to 31, colliding with a helium gas target, the authors have measured absolute total cross sections for the different possible charge changing processes at low (4q keV) energy. Projectiles and recoil ions were registered in coincidence, allowing the determination of the recoil ion charge state from its time of flight. For reactions where the projectile has picked up one electron, those where the target has lost two electrons ('transfer ionisation') always make up a substantial fraction of the total cross section. For 'true' double electron transfer the cross section is always small ( approximately=10-16 cm2), and does not vary significantly as a function of projectile charge.