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

页码：777 / 786

页数：10

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