On different mechanisms of the two-electron atomic photoionization

被引：46

作者：

Kheifets, A ^{[1
]}

机构：

[1] Australian Natl Univ, Res Sch Phys Sci & Engn, Canberra, ACT 0200, Australia

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 2001年 / 34卷 / 08期

关键词：

D O I：

10.1088/0953-4075/34/8/102

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We evaluate the partial contribution of different mechanisms leading to the single-photon two-electron atomic ionization processes: photoionization with excitation and double photoionization. We estimate the photon energy at which the shake-off mechanism becomes dominant over the two-step mechanism. We support our findings by scaling the photoionization cross sections of neutral atomic species with the electron scattering cross sections on the corresponding positive ions.

引用

页码：L247 / L252

页数：6

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