Target-atom K-shell ionization by binary-encounter electrons

被引：7
|
作者：
Horvat, V [1 ]
Watson, RL
机构：
[1] Texas A&M Univ, Inst Cyclotron, College Stn, TX 77843 USA
[2] Texas A&M Univ, Dept Chem, College Stn, TX 77843 USA
来源：
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 2001年 / 34卷 / 05期
关键词：
D O I：
10.1088/0953-4075/34/5/307
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Spectra of Ka x-rays emitted from Cu atoms bombarded with 10 MeV u(-1) beams of Kr, Xe and Bi ions were measured with a curved crystal spectrometer. Large enhancements of the Ka diagram lines were observed and attributed to secondary ionization by photons and electrons. To explain these results quantitatively, contributions from binary-encounter electrons have been calculated by considering their production and transport as well as the effective cross section for target K-shell ionization by electron impact. The results are in good agreement with the measurements.
引用
收藏
页码：777 / 786
页数：10
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