Impact-parameter dependence of the electronic energy loss of fast ions

被引：116
|
作者：
Grande, PL
Schiwietz, G
机构：
[1] Univ Fed Rio Grande do Sul, Inst Fis, BR-91501970 Porto Alegre, RS, Brazil
[2] Hahn Meitner Inst Berlin GmbH, Bereich F, D-14109 Berlin, Germany
来源：
PHYSICAL REVIEW A | 1998年 / 58卷 / 05期
关键词：
D O I：
10.1103/PhysRevA.58.3796
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
In this work we describe a model for the electronic energy loss of bare ions at high velocities. Starting from first-order perturbation theory we propose a simple formula to calculate the impact-parameter dependence of the electronic energy loss for all impact parameters. The physical inputs are the electron density and oscillators strengths of the atoms. A very good agreement is obtained with full first-order calculations. [S1050-2947(98)01111-1].
引用
收藏
页码：3796 / 3801
页数：6
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