VELOCITY DEPENDENCE OF IONIZATION PROBABILITY OF BE, CU, AG, W, PB AND SN ATOMS SPUTTERED BY 5.5 KEV AR+ IONS

被引:22
作者
MAKARENKO, BN
POPOV, AB
SHAPORENKO, AA
SHERGIN, AP
机构
[1] A. F. Ioffe Physical-Technical Institute, 194021 Leningrad, USSR
来源
RADIATION EFFECTS AND DEFECTS IN SOLIDS | 1990年 / 113卷 / 04期
关键词
D O I
10.1080/10420159008213070
中图分类号
TL [原子能技术]; O571 [原子核物理学];
学科分类号
0827 ; 082701 ;
摘要
The energy distributions of both ions and neutral atoms sputtered during ion bombardment of a few polycrystalline metals have been measured. The absolute values of the ionization probability Pi as a function of the emitted particle velocity v were obtained. The ionization probability for Be, Cu, Ag and W targets is found to depend exponentially on the particle velocity in accordance with the electron tunneling model. In the case of Pb and Sn the ionization probability shows strong deviation from an exponential dependence at high emission energies. © 1990, Taylor & Francis Group, LLC. All rights reserved.
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页码:263 / 268
页数:6
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