Robust estimates of hydrogen-impact ionization cross sections over a wide energy range

被引：14

作者：

Barghouty, AF ^{[1
]}

机构：

[1] CALTECH, Pasadena, CA 91125 USA

来源：

PHYSICAL REVIEW A | 2000年 / 61卷 / 05期

关键词：

D O I：

10.1103/PhysRevA.61.052702

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We describe a simple and effective procedure to estimate hydrogen-impact ionization cross sections over the energy range of tens of keV/nucleon to tens of MeV/nucleon. The procedure is valid in the first Born approximation using known or estimated electron-impact cross sections. The original Bates-Griffing relation between the two sets of cross sections is reformulated and a correction factor due to multiple transitions is introduced. Sample calculated ionization cross sections for helium and carbon collisions with hydrogen are presented.

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