ELECTRONIC STOPPING CROSS-SECTIONS OF 50-300-KEV HE AND LI IONS

被引：10

作者：

MERTENS, P

机构：

[1] Hahn-Meitner-Institut für Kernforschung GmbH, Bereich Kernchemie und Reaktor, D-1000 Berlin 39

来源：

PHYSICAL REVIEW A | 1979年 / 19卷 / 04期

关键词：

D O I：

10.1103/PhysRevA.19.1442

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

For 50-300-keV He+ and Li+7 in C, Al, Cu, Ag, and Au, the applicability of the simplified stopping function is investigated. Using the same targets for He+ and Li+ the electronic stopping power Se in 400-800- foils is measured by means of a magnetic spectrometer. The resulting stopping fractions Se(Li)Se(He) can be evaluated to an error of 2%. At energies above 20 keV/amu they are found to be independent of the target material. Applied to our experimental data, the simplified stopping function is shown to be a good approximation in connection with the fits of Andersen-Ziegler for Se (H) and the stopping ratios. © 1979 The American Physical Society.

引用

页码：1442 / 1447

页数：6

共 18 条

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