SCREENED RUTHERFORD BACKSCATTERING CROSS-SECTIONS FOR HEAVY-ION AND LOW-ENERGY BACKSCATTERING ANALYSIS

被引：8
|
作者：
LEE, SR [1 ]
HART, RR [1 ]
机构：
[1] TEXAS A&M UNIV SYST,DEPT NUCL ENGN,COLL STN,TX 77843
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 1993年 / 79卷 / 1-4期
关键词：
D O I：
10.1016/0168-583X(93)95389-M
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
The energy dependence of the total differential scattering cross section of 20-180 keV H+, D+ and He+ ions, as well as 100-350 keV C2+ and O2+ ions, backscattered through a laboratory angle of 161.2-degrees by monolayer-thick Au targets was measured. The ratio of the measured cross section to the Rutherford cross section ranged from 0.91 for 180 keV H+ to 0.44 for 100 keV O2+. The results were found to be in excellent agreement with exact classical calculations of the scattering cross section performed using Dirac-Fock atomic potentials. A comprehensive review of all previous measurements of the screened Rutherford backscattering cross section has been performed for comparison with the present results.
引用
收藏
页码：463 / 467
页数：5
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