Perturbation theory for (γ, 2e) on helium

被引：16

作者：

Keller, S ^{[1
]}

机构：

[1] Univ Frankfurt, Inst Theoret Phys, D-60054 Frankfurt, Germany

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 2000年 / 33卷 / 15期

关键词：

D O I：

10.1088/0953-4075/33/15/101

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Triply differential cross sections for photon impact double ionization of helium have been calculated using leading order perturbation theory to describe the interaction of the electrons. The results suggest that even at relatively large excess energies, the photofragmentation process is mostly due to photoionization of one electron followed by an ionizing electron-electron collision, rather than a 'shake-off' mechanism.

引用

页码：L513 / L517

页数：5

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