Single ionization of Na(3s) and Na*(3p) by low energy ion impact

被引:6
|
作者
Knoop, S. [1 ]
Hasan, V. G. [1 ]
Ott, H. [1 ]
Morgenstern, R. [1 ]
Hoekstra, R. [1 ]
机构
[1] Univ Groningen, KVI, NL-9747 AA Groningen, Netherlands
关键词
D O I
10.1088/0953-4075/39/8/019
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Single ionization cross sections for He2+ and O6+ impact on Na*(3p) in the 2-10 keV amu(-1) energy range have been measured using recoil-ion momentum spectroscopy of cold Na atoms. The present results are compared with our previous data on Na(3s). It is found that ionization of these weakly bound alkali systems yields larger cross sections than predicted from scaling laws derived from H and He targets. Also information on the ejected electron momenta could be obtained from the recoil spectra.
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页码:2021 / 2029
页数:9
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