氢原子电离三重微分截面计算中扭曲波、平面波和库仑波的比较  

The comparison among distorted wave,plane wave and coulomb wave in the calculation of triple differential cross section for ionization of hydrogen

作　　者：章韦芳[1,2] 贾昌春[1] 肖全志[1] 陈姣姣[1] 

机构地区：[1]安徽大学物理与材料科学学院,安徽合肥230039 [2]合肥师范学院物理与电子工程系,安徽合肥230061

出　　处：《安徽大学学报（自然科学版）》2011年第3期53-57,共5页Journal of Anhui University(Natural Science Edition)

基　　金：2006年安徽大学人才引进基金资助项目

摘　　要：在玻恩近似理论中分别采用扭曲波、平面波、库仑波,计算在250、150、54.4 eV三种入射能下氢原子(e,2e)反应的三重微分截面(TDCS),并与实验数据进行对比.发现在这些入射能下,采用扭曲波和平面波描述入射电子所得的TDCS相差不大;但当考虑散射电子与核的库仑相互作用时,其计算结果比扭曲波描述的更符合实验数据.In the（e,2e） reaction of hydrogen,distorted wave,plane wave and Coulomb wave in the Born approximation theory were to calculate the triple differential cross sections（TDCS） at incident energies of 250,150 and 54.4 eV respectively,and the theoretical results were compared with experiments.The authors found that there was little difference between the results from the two models,one using the description of plane wave and the other of distorted wave.However,if the interaction between the scattered electron and the nucleus was considered,the result of the calculation coincided with the result of the experiments was better than the calculation resulted from the description of distorted wave.

关 键 词：三重微分截面 平面波 扭曲波 库仑波 

分 类 号：O561.5[理学—原子与分子物理]