Carbon KVV Auger electron emission from highly oriented pyrolytic graphite bombarded by fast protons

被引：1
|
作者：
Kudo, H [1 ]
Haruyama, K
Kinoshita, T
Seki, S
Narumi, K
Naramoto, H
机构：
[1] Univ Tsukuba, Inst Phys Appl, Tsukuba, Ibaraki 3050006, Japan
[2] SSL Tsukuba Ltd, Ibaraki 3050035, Japan
[3] Japan Atom Energy Res Inst, Takasaki, Gumma 3701292, Japan
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 2002年 / 190卷
关键词：
D O I：
10.1016/S0168-583X(02)00457-3
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
We have studied carbon KVV Auger electron emission from highly oriented pyrolytic graphite (HOPG) by ion-induced 180degrees electron spectroscopy. In obliquely emitting directions across the HOPG (0 0 0 1) surface, the Auger peak yield induced by MeV protons becomes lower than in the surface normal direction. An analysis based on mean free path for inelastic scattering indicates that the observed reduction of the Auger yield can be explained by increased inelastic collisions with valence electrons above the surface. The experimental results provide information about the production sites of the KVV Auger electrons in the layer structure. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：160 / 163
页数：4
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