THRESHOLD BEHAVIOR OF CROSS SECTION FOR IONIZATION OF HE AND AR BY MONO-ENERGETIC ELECTRONS

被引：34

作者：

MARCHAND, P

PAQUET, C

MARMET, P

机构：

[1] Centre de Recherches Sur Les Atomes et Les Molécules, Laval University, Que.

来源：

PHYSICAL REVIEW | 1969年 / 180卷 / 01期

关键词：

D O I：

10.1103/PhysRev.180.123

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A new apparatus using crossed-beam techniques with a cylindrical electrostatic electron velocity selector for the study of ionization probability curves of gases is described. Results for He+ and Ar+ in the first eV above the ionization threshold are given. New computer techniques determine structure and near-threshold behavior. A simple power law yields a good representation of the experimental results for each ion state, with a different power in each case. For He a power law with power 1.16 is found. The results for Ar may be represented by two power laws with powers 1.3 and 1.34, respectively, joining at the energy of the P122 level of Ar+. © 1969 The American Physical Society.

引用

页码：123 / &

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