A Simple Approximation for Classical Scattering at Large Angles
作者:
G. Leibfreid,
O. S. Oen,
期刊:
Journal of Applied Physics
(AIP Available online 1962)
卷期:
Volume 33,
issue 7
页码: 2257-2262
ISSN:0021-8979
年代: 1962
DOI:10.1063/1.1728941
出版商: AIP
数据来源: AIP
摘要:
The classical scattering for repulsive potentials is treated approximately by a matching method. The matching potential is a cut‐off potential which matches the value and the slope of the actual potential at the distance of closest approach. The method is thought to be successfully applicable to interatomic potentials of the screened Coulomb type. Comparison is made with machine results for an exponentially screened Coulomb potential. The differential cross section and the stopping power are compared for various energies. The agreement in the differential cross section is fair except for very low energy transfers. The stopping powers agree over a wide energy range with an error of only a few percent. Further comparison is made with another approximation given by Lehman and Shapiro.
点击下载:
PDF
(381KB)
返 回