MEASUREMENT OF DIFFERENTIAL CROSS-SECTIONS FOR THE ELASTIC-SCATTERING OF POSITRONS BY ARGON ATOMS

被引：51

作者：

COLEMAN, PG

MCNUTT, JD

机构：

[1] Department of Physics, University of Texas at Arlington, Arlington

来源：

PHYSICAL REVIEW LETTERS | 1979年 / 42卷 / 17期

关键词：

D O I：

10.1103/PhysRevLett.42.1130

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Direct measurements of differential scattering cross sections for positron-gas-atom collisions are reported. The apparatus used exploits the time-of-flight technique. Results for positrons of mean energy 2.2, 3.4, 6.7, and 8.7 eV elastically scattered through angles between 20°and 60°by argon atoms are presented. Sources of experimental error are discussed and comparison with recent theoretical calculations is made. © 1979 The American Physical Society.

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页码：1130 / 1133

页数：4

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