Spectral intensities from hydrogen-like ions
Spectral intensities from hydrogen-like ions
复制标题
类氢离子的光谱强度
DOI：
10.1088/0022-3700/17/15/019
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发表时间：
1984
期刊：
影响因子：
--
通讯作者：
R. Mcwhirter
中科院分区：
文献类型：
--
作者：
N. N. Ljepojevoc;R. Hutcheon;R. Mcwhirter
作者描述了一个核荷小于15的类氢离子的碰撞辐射计算。单独考虑（n,l,j）子能级直至并包括n=4，以便计算结果可用于预测相应过渡的精细结构分量的强度。作者特别提出了莱曼α分量（1S12/-2P1/2和1S1/2-2P3/2）的计算强度比，以便与最近从太阳耀斑和托卡马克等离子体中观测到的这些已分辨分量进行比较。计算还给出了各种激发、重组和电离速率系数的许多值，其中一些值是通过将新结果与以前和已经发表的结果进行比较得到的。这些差异部分来自于新的（作者认为更好的）基本原子数据的选择，部分是因为他们分别处理了（n,l,j）能级。
The authors describe a collisional-radiative calculation for hydrogen-like ions of nuclear charge less than about 15. Separate account is taken of the (n,l,j) sublevels up to and including n=4 so that the results of the calculation may be used to predict the intensities of the fine-structure components of the corresponding transitions. In particular the authors present calculated intensity ratios for the Lyman-alpha components (1S12/-2P1/2 and 1S1/2-2P3/2) for comparison with the recent observations of these resolved components seen from solar flares and tokamak plasmas. The calculation also gave numerous values of various excitation, recombination and ionisation rate coefficients and some of these are presented by comparing the new results with values derived previously and already published. The differences are shown to arise partly from the new (and the authors believe better) choice of basic atomic data and partly because they have treated the (n,l,j) levels separately.