Energy-angle distribution of low-energy hydrogen ions in thin aluminum and gold foils

被引：28

作者：

Famá, M ^{[1
]}

Lantschner, GH ^{[1
]}

Eckardt, JC ^{[1
]}

Denton, CD ^{[1
]}

Arista, NR ^{[1
]}

机构：

[1] Comis Nacl Energia Atom, Ctr Atom Bariloche, Inst Balseiro, RA-8400 Bariloche, Rio Negro, Argentina

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 2000年 / 164卷

关键词：

stopping power; energy loss; angular distributions; multiple scattering;

D O I：

10.1016/S0168-583X(99)01086-1

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Energy and angular distributions of hydrogen ions in thin solid foils of elements with significantly different electronic structures and atomic masses, such as Al and Au, have been measured at 9 keV using the transmission technique. The results are compared with Monte Carlo simulations using a classical scattering approach and an impact-parameter independent electronic energy loss, as well as with a simplified model containing the main physical features. In both cases, the effect of foil roughness on angular dependence of the energy loss has been included and it has been found to be responsible for the variations observed at small angles. The measured angular distributions have also been compared with standard multiple scattering functions corresponding to Thomas-Fermi and Lenz-Jensen potentials and with calculations based on 1/r(n) power potentials. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：241 / 249

页数：9

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