氩离子原子过程参数的系统计算与评估:I电子碰撞激发  

Systemic calculation and assessment of atomic properties of argon ions: I.Electron impact excitation

作　　者：姚剑虹[1] 李萍[2] 刘春雷[2] 逄锦桥[2] 何斌[2] 王建国[2] 邱玉波[2] 颜君[2] 

机构地区：[1]中国工程物理研究院研究生部,北京100088 [2]北京应用物理与计算数学研究所,北京100088

出　　处：《强激光与粒子束》2005年第9期1349-1355,共7页High Power Laser and Particle Beams

基　　金：国家自然科学基金资助课题(10174009;10344001);中国工程物理研究院科学技术基金资助课题(20040212;20040213);国家863计划项目资助课题;国家科技基础性工作专项资助课题(2003DEA2C021-003)

摘　　要：利用准相对论扭曲波玻恩近似加交换方法,在组态平均近似下,系统地计算了类氢、类氦、类锂氩离子n≤6的各组态之间的碰撞激发过程截面,并和已有的理论结果进行了详细的对比分析。计算结果和相对论扭曲波近似的计算结果符合得很好,相对偏差一般都小于10%。由于没有考虑共振效应,计算的结果与强耦合方法的计算结果在入射电子能量较低的情况下有较大偏差,其他情况则符合较好,相对偏差一般在15%以内。该方法可以方便地计算大量应用所需的原子过程参数。Based on quasi-relativistic distorted wave Born approximation with exchange, the electron impact excitation cross sections between configurations of H-, He-, and Li-like argon ion were calculated systemically and compared with previous theoretical predictions. Most of the present calculated results agreed within deviation of 10 % with the theoretical results of full relativistic distorted wave method, and agreed in general within deviation of 15 % with those of closing coupling methods except that in the low incident energy, there were relatively larger deviations due to the present calculation considering only the direct excitation processes while the resonance effects were not taken into account. The codes presented in this paper can conveniently provide a large amount of atomic data for practical application.

关 键 词：电子碰撞激发 氩离子 准相对论扭曲波方法 

分 类 号：O562.5[理学—原子与分子物理]