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中文摘要：
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．
英文摘要：
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.
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