应用ECPSSR理论研究重离子引起原子的内壳层电离  

Calculation of atomic inner-shell ionization cross section by ECPSSR theory

作　　者：李明生[1] 阮芳芳[1] 蔡晓红[1] 

机构地区：[1]中国科学院近代物理研究所

出　　处：《原子与分子物理学报》2007年第4期726-730,共5页Journal of Atomic and Molecular Physics

基　　金：国家自然科学基金(10134010;10375080;10304019)

摘　　要：ECPSSR理论是解释离子-原子碰撞内壳层电离最成功的理论之一.我们用VISUAL FORTRAN编写了ECPSSR理论计算程序,修正了ISICS程序中的错误,本程序可以对各种入射离子与靶原子的组合进行计算,给出K,L,M的壳层及次壳层电离截面以及相应的X射线产生截面,并根据需要选择是否对入射离子运动进行相对论修正.采用所编写的程序计算了一些碰撞体系的电离截面和X射线产生截面,并与其他程序的计算结果和实验数据分别进行了比较.ECPSSR theory is one of most successful theories in ion-atomic collision which is widely used to calculate the inner shell ionization cross sections and X-ray production cross sections in ion-atom collisions. In this work, a program based on ECPSSR theory was compiled by using VISUAL FORTRAN language, and corrects the error in ISICS program, the program can be used to calculate different kinds of ion-atomic collision systems giving ionization sections and the X-ray production cross sections for K-, L-, M-shell and their subshells. The calculations for some collision systems were done and the calculated results are compared with other calculations and the experiment results available.

关 键 词：ECPSSR理论 内壳层电离截面 X射线产生截面 离子-原子碰撞 

分 类 号：O469[理学—凝聚态物理]