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Fine structure collision strengths for S VII lines

机译:S VII线具有优良的结构碰撞强度

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摘要

Energy levels, oscillator strengths, radiative decay rates and fine structure collision strengths are presented for six times ionized sulfur S VII. The atomic data are calculated with the SUPERSTRUCTURE code, where relativistic corrections are introduced according to the BreitPauli approach. We include in this work the (1s ~2) 2s ~22p ~6, ~2s ~22p ~53l, 2s2p ~63l, ~2s ~22p ~54l (ln1) configurations that yield the lowest 75 levels. The scattering problem is treated in the distorted wave approach by the code DISTORTED WAVE. This produces collision strengths in LS coupling that will be used by the code JAJOM to transform them into fine structure ones. Fine structure collision strengths for transitions from the ground and the first four excited levels are presented at six electron energies from 20 to 120Ryd by a step of 20Ryd. Our atomic structure data are compared with the available experimental and theoretical results.
机译:给出了六倍离子化硫S VII的能级,振荡器强度,辐射衰减率和精细结构碰撞强度。原子数据使用SUPERSTRUCTURE代码计算,根据BreitPauli方法引入相对论校正。我们在这项工作中包括(1s〜2)2s〜22p〜6,〜2s〜22p〜53l,2s2p〜63l,〜2s〜22p〜54l(ln1)配置,它们产生最低的75个水平。散射问题在扭曲波方法中通过代码DISTORTED WAVE处理。这会在LS耦合中产生碰撞强度,代码JAJOM将使用该碰撞强度将其转换为精细结构。在从20到120Ryd的六个电子能量上,以20Ryd的阶跃呈现了从地面和前四个激发能级跃迁的精细结构碰撞强度。我们将原子结构数据与可用的实验和理论结果进行了比较。

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