Multiple scattering of electrons
Multiple scattering of electrons
复制标题
DOI：
10.1103/physrev.57.24
复制
发表时间：
1940-01-01
期刊：
影响因子：
--
通讯作者：
Saunderson, JL
中科院分区：
文献类型：
--
作者：
Goudsmit, S;Saunderson, JL
给出了多重卢瑟福散射的理论处理，如果考虑散射体中具有相同总路径长度的电子，该处理是精确的。对于薄散射体问题的实际解所需的近似可以被证明对小角度散射的结果几乎没有影响。将散射分布表示为勒让德多项式的级数，并对其进行了数值计算；对于薄散射，最终结果近似为高斯曲线。结果表明，这种分布与电子屏蔽引起的小角散射对卢瑟福定律的偏离程度密切相关。这或许可以解释实验和理论之间的差异。
A theoretical treatment of multiple Rutherford scattering is given which is exact if one considers electrons with the same total path length in the scatterer. The approximations necessary for the actual solution of the problem for a thin scatterer can be shown to have little effect on the results for small angle scattering. The distribution of scattering is expressed as a series in Legendre polynomials which has been evaluated numerically; the final result for thin scattering is approximately a Gaussian curve. It is shown that this distribution depends in a sensitive way upon the deviation from the Rutherford law for small angle scattering due to screening by electrons. This may perhaps explain the discrepancies between experiments and theory.