Electron impact ionization cross section of Ar +, Kr +, In + and Ge

The single electron impact ionization cross sections of Ar +, Kr +, In + and Ge + were measured on the improved electron-ion impact apparatus at Fudan University. The Ar +, Kr + and In + experimental results are in good agreement with data from other laboratories. The cross section of Ge + was measu...

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Bibliographic Details
Published inNuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms Vol. 132; no. 3; pp. 364 - 370
Main Authors Gao Haibin, Fang Dufei, Lu Fuquan, Gu Jian, Wu Weimin, Hu Wei, Wang Yanseng, Wu Songmao, Tang Jiayong, Yang Fujia
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.11.1997
Subjects
Cross section
Impact
Ion beam
Ionization
Impact
Ion beam
38.80D
Cross section
Ionization
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Summary:The single electron impact ionization cross sections of Ar +, Kr +, In + and Ge + were measured on the improved electron-ion impact apparatus at Fudan University. The Ar +, Kr + and In + experimental results are in good agreement with data from other laboratories. The cross section of Ge + was measured for the first time. The experimental results indicate that the indirect ionization process gives a larger contribution to the total ionization cross section of In +, as compared to the other three targets. The experimental data were compared with our Distorted-Wave-Born-Exchange-Approximation (DWBEA) calculation, the Lotz formula, and Configuration-Averaged-Distorted-Wave (CADW) calculations.
ISSN:0168-583X
1872-9584
DOI:10.1016/S0168-583X(97)00441-2