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首页> 外文期刊>Physica Scripta: An International Journal for Experimental and Theoretical Physics >Collision strength calculations of Ni XXIII
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Collision strength calculations of Ni XXIII

机译：Ni XXIII的碰撞强度计算

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摘要

Collision strengths have been calculated for the fine-structure transitions among the levels of the (1s~2)2s~22p~2, 2s2p ~3, 2p~4, 2s~22p3s, 2s~22p3p, 2s ~22p3d configurations of Ni XXIII, over an electron energy range of E below 500 Ryd, using the Dirac atomic R-matrix code of Norrington and Grant. The effects of channel coupling, long-range multipole potentials and a 'top-up' based on the sum rules of Burgess and Sheorey (1974 J. Phys. B: At. Mol. Opt. Phys. 7 2403) are discussed. Effective collision strengths are obtained by averaging collision strengths over a Maxwellian velocity distribution. A detailed comparison of energy levels with other experimental and theoretical values has been made. Additionally, the collision strengths obtained have been compared with the data from the distorted-wave method. The accuracy of our calculations is assessed.
机译：Ni XXIII的（1s〜2）2s〜22p〜2、2s2p〜3、2p〜4、2s〜22p3s，2s〜22p3p，2s〜22p3d构型之间的精细结构转变已计算出碰撞强度使用Norrington和Grant的Dirac原子R矩阵代码在E低于500 Ryd的电子能量范围内。讨论了基于Burgess和Sheorey的求和规则（1974 J. Phys。B：At。Mol。Opt。Phys。7 2403）进行的通道耦合，远程多极电势和'top-up'效应。有效的碰撞强度是通过对麦克斯韦速度分布上的碰撞强度求平均而获得的。能量水平与其他实验和理论值进行了详细的比较。此外，已将获得的碰撞强度与扭曲波方法的数据进行了比较。我们计算的准确性得到评估。

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