辐射复合截面的扭曲波计算

Calculation of Radiative Recombination Cross Secitons Using Distorted Wave App roximation

摘要: 采用非相对论量子计算方法计算了电子与高电荷态离子碰撞的辐射复合截面 ,其中连续态电子的波函数是由扭曲波近似方法 (DWBE)获得 .计算了低能电子与中、低核电荷的高电荷态离子(类H和类Li)的辐射复合截面 ,并与采用有效电荷的库仑波计算结果进行了比较 ,说明了扭曲波计算的重要性. In this work we have calculated electron-ion collision rad ia tive recombination (RR) cross sections using semi-relativistic distorted wa ve approximation. The radiative recombination for highly charged ions (e.g. H-l ike and Li-like) with low nuclear charge are studied. By comparing our calculat ed values with coulombic wave approximation, we concluded that it is necessary t o use distorted-wave Born exchange approximation in calculating RR cross sectio ns.

Abstract: In this work we have calculated electron-ion collision rad ia tive recombination (RR) cross sections using semi-relativistic distorted wa ve approximation. The radiative recombination for highly charged ions (e.g. H-l ike and Li-like) with low nuclear charge are studied. By comparing our calculat ed values with coulombic wave approximation, we concluded that it is necessary t o use distorted-wave Born exchange approximation in calculating RR cross sectio ns.