Measurement of electron impact collisional excitation cross sections of Ni to Ga-Like Gold

被引：23
作者：
May, MJ
Beiersdorfer, P
Jordan, N
Scofield, JH
Reed, KJ
Hansen, SB
Fournier, KB
Gu, MF
Brown, GV
Porter, FS
Kelley, R
Kilbourne, CA
Boyce, KR
机构：
[1] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA
[2] Stanford Univ, Stanford, CA 94305 USA
[3] Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA
[4] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20700 USA
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 2005年 / 235卷
关键词：
electron-impact excitation cross sections; gold M-shell; microcalorimeter; EBIT;
D O I：
10.1016/j.nimb.2005.03.179
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
We are measuring the cross sections for the 3d -> 4f and 3d -> 5f excitations in Ni- to Ga-like Au in beam plasmas created in the Livermore electron beam ion trap EBIT-I. The measurements are possible by using the high-resolution broadband coverage of the Goddard Space Flight Center micro-calorimeter. The cross sections are determined from the ratio of the intensity of the collisionally excited lines to the intensity of the radiative recombination lines. The value of the excitation cross section of the 3d(3/2) -> 5f(5/2) transition in Au50+ (Cu-like) is presented and compared to distorted wave calculations. (c) 2005 Elsevier B.V. All rights reserved.
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收藏
页码：231 / 234
页数：4
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