Total positron-impact ionization and positronium formation from the noble gases

被引：83

作者：

Laricchia, G ^{[1
]}

Van Reeth, P ^{[1
]}

Szluinska, M ^{[1
]}

Moxom, J ^{[1
]}

机构：

[1] UCL, Dept Phys & Astron, London WC1E 6BT, England

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 2002年 / 35卷 / 11期

关键词：

D O I：

10.1088/0953-4075/35/11/311

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Detailed measurements of the total ionization cross-sections for Ne, Ar, Kr and Xe by positron impact are presented in the energy range from threshold up to similar to1 keV. From these and other available data, the cross-sections for positronium formation are extracted. Comparison is made with other results where available. Structure in the positronium formation cross-section has been found which appears to be associated with positronium formation in excited states. Upper and lower limits on the contribution from these are estimated.

引用

页码：2525 / 2540

页数：16

共 48 条

[1]

[Anonymous], POSITRON ELECT GAS S

[2]

[Anonymous], AT COLLISION RES JPN

[3] Near-threshold ionization of He and H-2 by positron impact [J].