CONTRIBUTION OF COMPTON-SCATTERING TO THE DOUBLE-IONIZATION OF HELIUM

被引：63

作者：

HINO, K ^{[1
]}

BERGSTROM, PM ^{[1
]}

MACEK, JH ^{[1
]}

机构：

[1] OAK RIDGE NATL LAB,OAK RIDGE,TN 37831

来源：

PHYSICAL REVIEW LETTERS | 1994年 / 72卷 / 11期

关键词：

D O I：

10.1103/PhysRevLett.72.1620

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Double ionization of helium by single-photon impact is analyzed for photon energies from 4 to 12 keV. Many-body perturbation theory is applied to obtain the Compton scattering contribution to the total cross section for double ionization. Compton scattering dominates photoionization above 6 keV. Despite the differences between the two processes, the ratio of double to single ionization by Compton scattering appears to approach the asymptotic value given by photoionization calculations. These ratios are in agreement with recent experiments.

引用

页码：1620 / 1623

页数：4

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