Electron-ion coincidence measurements of CH4
Electron-ion coincidence measurements of CH4
复制标题
CH4 的电子-离子符合测量
DOI：
10.1088/0022-3700/8/18/021
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发表时间：
1975
期刊：
影响因子：
--
通讯作者：
M. J. V. Wiel
中科院分区：
文献类型：
--
作者：
C. Backx;M. J. V. Wiel
测量报告的10千电子伏的电子散射在甲烷在低动量转移，在符合各种离子产品。在飞行时间系统中进行离子质量分离，总透射率为解离能高达20 eV的片段。结果已获得的振子强度为形成的所有离子产品的能量损失从IP高达80 eV。目前的结果证实了早期的光电离效率的电子-电子符合测量（参见同上，Vol.8，No.18，P.3007（1975）），并将它们扩展到更高的能量。从数据中可以分别提取出CH ~（4+）的（1t_2）_1、（2a_1）_1和更高初态的振子强度。
Measurements are reported of 10 keV electron scattering in CH4 at low momentum transfers, in coincidence with the various ionic products. Ion mass separation was performed in a time-of-flight system with total transmission for fragments with dissociation energies up to 20 eV. Results have been obtained on the oscillator strengths for the formation of all ionic products for energy losses from the IP up to 80 eV. The present results confirm earlier electron-electron coincidence measurements of the photoionization efficiency (see ibid., vol.8, no.18, p.3007 (1975)) and extend them to higher energy. The oscillator strengths of the (1t2)-1, (2a1)-1 and higher initial states of CH4+ could be extracted separately from the data.