摘要
本文用出现在薛定谔方程中的一个“等效势”体现相对论效应,结合我们以前得到的交换势,计算了低能电子(0.1-30eV)被Ar、Kr、Xe、Rn弹性散射的截面。结果表明,相对论效应的影响随原子序数的增加而加大。考虑相对论效应后计算结果与实验符合得很好,这也同时表明我们所用的交换势是较成功的。
The relativistical effect on elastic electron scattering by atoms have been repersented by an 'equivelent potential' appeared in scattering equation. Co-mbiaing with the exchange potential obtained in former works [1,2], we have calculated the cross sections of low-energy electron(0. l-30eV) scattering by Ar, Kr,Xe and Rn .It is indicated that the influence of the relativistical effect increases with the increasing of atomic number. The results considering the relativistical effect are in good agreement with the experiments. And it is also indicated that the exchange potential used by present work is successful.
出处
《原子与分子物理学报》
CAS
CSCD
北大核心
1991年第4期1991-1999,共9页
Journal of Atomic and Molecular Physics
基金
国家自然科学基金资助项目
