Fast ion-induced CO molecule fragmentation in the strong interaction regime
Fast ion-induced CO molecule fragmentation in the strong interaction regime
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DOI：
10.1088/0953-4075/32/3/008
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发表时间：
1999-02
期刊：
影响因子：
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通讯作者：
L. Adoui;C. Caraby;A. Cassimi;D. Leliévre;J. Grandin;A. Dubois
中科院分区：
文献类型：
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作者：
L. Adoui;C. Caraby;A. Cassimi;D. Leliévre;J. Grandin;A. Dubois
采用重合飞行时间技术研究了快离子和多电荷重离子引起的CO分子碎裂。结果涉及强相互作用制度，尚未有数据报告。测定了各离子解离通道（Q = 2-9）的动能释放分布、分支比和多电子去除截面。一般的趋势，从微扰制度的强相互作用制度，分析了最近的离子原子的进展。使用反冲离子动量谱研究一个解离单电离通道（同时激发）大大提高了实验KER分辨率。此外，它允许角和动能释放分布的一致测量。这种技术被证明是有前途的分子光谱学研究。
A coincident time of flight technique is used to investigate fast ion-induced CO molecule fragmentation with swift and multicharged heavy ions. The results concern the strong interaction regime for which no data have yet been reported. Kinetic energy release distributions, branching ratios and multi-electron removal cross sections are determined for each dissociation channel of ions (Q = 2-9). The general trend, from the perturbative regime to the strong interaction regime, is analysed in the light of recent ion-atom advances. The use of recoil ion momentum spectroscopy to study one dissociative single ionization channel - with simultaneous excitation - greatly improves the experimental KER resolution. Furthermore, it allows a coincident measurement of the angular and kinetic energy release distributions. This technique is proved promising for molecular spectroscopy studies.