POSITRON-IMPACT IONIZATION OF ATOMIC-HYDROGEN

被引：95

作者：

JONES, GO

CHARLTON, M

SLEVIN, J

LARICCHIA, G

KOVER, A

POULSEN, MR

CHORMAIC, SN

机构：

[1] ST PATRICKS COLL,DEPT EXPTL PHYS,MAYNOOTH,KILDARE,IRELAND

[2] UNIV LONDON UNIV COLL,DEPT PHYS & ASTRON,LONDON WC1E 6BT,ENGLAND

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 1993年 / 26卷 / 15期

基金：

加拿大自然科学与工程研究理事会;

关键词：

D O I：

10.1088/0953-4075/26/15/009

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Ionization cross sections for positrons impacting on atomic hydrogen have been measured for kinetic energies in the range 15-700 eV. This has been done in a crossed-beam geometry where a magnetically guided positron beam intersects a hydrogen gas jet emanating from a radio frequency discharge tube. Electron impact ionization cross sections were also measured with the same apparatus thus facilitating comparison with, and normalization to, published results. The positron-atomic hydrogen results are found to be significantly lower than those obtained by Spicher et al.

引用

页码：L483 / L488

页数：6

共 19 条

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ACACIA P, 1993, UNPUB PHYS LETT A

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