Absolute differential cross sections for electron excitation of silver at small scattering angles

被引：9

作者：

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

Pejcev, V. ^{[2
]}

Sevic, D. ^{[1
]}

McEachran, R. P. ^{[3
]}

Stauffer, A. D. ^{[4
]}

Marinkovic, B. P. ^{[1
]}

机构：

[1] Univ Belgrade, Inst Phys, Belgrade 11080, Serbia

[2] Univ Kragujevac, Fac Nat Sci, Kragujevac 34000, Serbia

[3] Australian Natl Univ, ARC Ctr Antimatter Matter Studies, Canberra, ACT 0200, Australia

[4] York Univ, Dept Phys & Astron, Toronto, ON M3J 1P3, Canada

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 2012年 / 279卷

关键词：

Differential cross sections; Excitation; Silver; Generalized oscillator strengths; DISTORTED-WAVE CALCULATION; IMPACT EXCITATION; AGI;

D O I：

10.1016/j.nimb.2011.10.066

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We present results of our experimental and theoretical investigations of the electron excitation of the ground 4d(10)5s state of silver. Differential cross sections (DCSs) for the excitation of the first combined resonant 4d(10)5p state (two fine-structure levels with total angular momentum J = 1/2 and 3/2 which cannot be distinguished in the present experiment) were measured at electron-impact energies (E-0) of 10, 20, 40, 60, 80 and 100 eV and for a range of scattering angles (0) from 3 degrees up to 15 degrees. Absolute DCSs were obtained by the normalization of relative differential cross sections to the optical oscillator strengths. The relativistic distorted wave (RDW) method was used to calculate DCSs and generalized oscillator strengths for each level separately and the combined results are compared with the measurements. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：53 / 57

页数：5

共 23 条

[1] Generalized oscillator strengths for forward electron scattering [J].