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高电荷态离子引发氮气分子的解离和碎裂
Dissociation and fragmentation of N2 molecules induced by slow highly charged ions
【摘要】 利用时间和位置灵敏相关的符合装置,实验研究了高电荷态Xeq+(q=15-21)离子与N2分子慢碰撞过程的多电子转移过程、N2+离子的解离以及N2q+(1<q≤5)离子的库仑爆炸过程.实验鉴别了N2离子的解离和库仑爆炸反应道.从反冲离子飞行时间谱得到氮气分子离子的库仑爆炸释放的动能(KER),并与库仑爆炸模型进行了比较.
【Abstract】 Using the coincidence technique with a time-and position sensitive detector,single and multiple electron capture processes are investigated in slow collisions between highly charged Xeq+(q=15-21) ions and molecular nitrogen.The formation of N2q+ ions by electron capture,dissociation of molecular ion N2+,and Coulomb Explosion of N2q+(1<q≤5) were observed.Various dissociation and Coulomb explosion(CE) channels related to multiple electron capture were identified.The kinetic energy release(KER) of the fragments is derived from the time-of-flight spectra.The results are compared with CE model.
- 【文献出处】 原子与分子物理学报 ,Journal of Atomic and Molecular Physics , 编辑部邮箱 ,2006年04期
- 【分类号】O561.4
- 【被引频次】1
- 【下载频次】98