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中文摘要：
在相对论多组态Dirac—Fock理论基础上。发展了计算双电子复合截面的程序。并以类锂C^3＋，Ar^15＋，Kr^33＋和U^89＋等离子为例，详细计算了共振双激发态1s2121′的辐射衰变率、Auger衰变率及相应的双电子复合截面。对于C^4＋，Ar^15＋和Kr^34＋离子的结果与已有的计算和实验结果都能很好地符合；对于U^90＋离子，则重点讨论了Breit效应对双电子复合截面的贡献。
英文摘要：
Based on the muhiconfiguration Dirac-Fock method, a new program was developed for the calculation of cross cections of dielectronic recombination （DR）. As an example, the decay rates and the corresponding DR cross sections have been systematically calculated for the doubly excited state 1s2121′ of C^3＋,Ar^15＋,Kr^33＋ and U^89＋ ions. For C^4＋,Ar^15＋ and Kr^34＋ ions, a good agreement has been found between the present calculations and the previous theoretical and experimental results; for U^90＋ ion, the effect of the Breit interation on the DR cross sections has been emphasized especially.
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