MULTIPLE IONIZATION OF XENON BY POSITRON IMPACT

被引：16

作者：

KRUSE, G

QUERMANN, A

RAITH, W

SINAPIUS, G

WEBER, M

机构：

[1] Fakultät für Physik, Universität Bielefeld, Bieiefeid, 4800

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 1991年 / 24卷 / 02期

关键词：

D O I：

10.1088/0953-4075/24/2/003

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

For positron impact on xenon we have measured the ratios of double-to-single and triple-to-single ionization cross sections, R2 and R3, respectively, and compared them with the corresponding cross section ratios for electron impact. At high projectile energies, at about 600-800 eV, the cross section ratios R2(e+) and R2(e-) merge. At lower projectile energies, the positron ratios lie below the electron ratios. Qualitatively, this agrees with the results of Charlton et al for He, Ne and Ar.

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页码：L33 / L37

页数：5

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