Author:
Wijngaarden A. van,Brimner E. J.,Baylis W. E.
Abstract
Thin gold films, vacuum deposited onto a beryllium substrate, have been irradiated by projectiles of 1H, 4He, 7Li, and 11B in the energy range 50–110 keV and the backscatter intensity measured at a laboratory scattering angle of 136.4°. An analytic expression for the scattering cross section in a shell-shielded Coulomb potential has been derived and is found to be in good agreement with the present experimental results. For thin films the observed backscatter yield is not proportional to the film thickness, but increases more rapidly. The enhancement in the yield can be explained by small-angle multiple deflections. It has been corrected for, using estimates for the angular divergence of a beam passing through a thin stopping region.
Publisher
Canadian Science Publishing
Subject
General Physics and Astronomy
Cited by
33 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献
1. Electron screening in backward elastic scattering;The European Physical Journal A;1998-08
2. Screened Rutherford backscattering cross sections for heavy ion and low energy backscattering analysis;Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms;1993-06
3. Stopping power measurements of 20–180 keV 1H and 4He in indium phosphide using thick target backscattering;Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms;1987-11
4. Investigation of Coulomb deflection effects on L3-subshell alignment and L-subshell ionisation cross sections;Journal of Physics B: Atomic and Molecular Physics;1987-05-28
5. Screening corrections to the Rutherford cross section;Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms;1985-09