Excitation of Autoionization States and Electronic Stopping Powers at Collisions of Slow Ions with a Solid

被引：10

作者：

Zinoviev, A. N. ^{[1
]}

Babenko, P. Yu. ^{[1
]}

Meluzova, D. S. ^{[1
]}

Shergin, A. P. ^{[1
]}

机构：

[1] Russian Acad Sci, Ioffe Phys Tech Inst, St Petersburg 194021, Russia

来源：

JETP LETTERS | 2018年 / 108卷 / 09期

关键词：

INELASTIC ENERGY-LOSS; CROSS-SECTIONS; POSITIVE-IONS; IONIZATION; AR+; ARGON; SI; SCATTERING;

D O I：

10.1134/S0021364018210154

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

It has been shown that the excitation of autoionization states at collisions of keV ions with a solid is decisive for inelastic energy loss and, correspondingly, the electronic stopping power dE/dx. It has been proposed to estimate the electronic stopping power dE/dx using the relation of cross sections for the excitation of autoionization states to ionization cross sections. When ionization cross sections are unknown, scaling is used to calculate ionization cross sections at the excitation of the L and M shells. A threshold dependence of the electronic stopping power dE/dx on the energy of bombarding ions has been predicted.

引用

页码：633 / 636

页数：4

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