慢电子与高Z原子Xe、Rn碰撞总截面和动量转移截面的计算

Calculations of cross sections for the elastic scattering of low-energy electron by Xe and Rn atoms

本文采用Roothaan-Hartree-Fock波函数,运用等效势模型,并使用不合任意参数的交换势计算了0.1～30 eV的慢电子与高Z原子Xe、Rn弹性碰撞的总截面和动量转移截面.对于Xe原子我们的计算结果与实验数据符合的比较好,对于Rn原子我们的计算结果和其他理论计算结果数据总的趋势是一致的.但至今尚未见有实验结果的报道,仍需以后实验来验证.

By using the Roothaan-Hartree-Fock wave functions of atoms and the effective potential model, we calculate the elastic integral cross section and the momentum transfer cross sections for the scattering of low-energy electrons from complex atoms Xenon and Rndon. The exchange potentials we used do not need any parameters. Our calculations cover the incident energy range of about 0. leV and 30eV. The results for Xe are in good agreement with the experimental data and those of other elaborate theoretical calculations. For Rn, there are no experimental data, so we compare our calculated results with those obtained by other theoretical calculations and find that they have the same trend. The calculated results for Rn remain to be confirmed by the experiments.