Dielectronic recombination of Fe22+ and Fe21+
Dielectronic recombination of Fe22+ and Fe21+
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DOI：
10.1088/0022-3700/19/22/023
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发表时间：
1986-11
期刊：
影响因子：
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通讯作者：
N. Badnell
中科院分区：
文献类型：
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作者：
N. Badnell
本文采用多组态LS-耦合展开，并考虑Δ nc=0和Δ nc=1的自电离跃迁，计算了类铍离子Fe ~（22+）和类硼离子Fe ~（21+）的双电子复合速率系数。中间耦合的影响也被调查，发现是小于10%。他们使用autostructure-a通用程序计算多组态LS耦合或中间耦合自动电离跃迁速率（包括超结构）-计算1-2和2-3核心跃迁的双电子复合速率系数。再加上伯吉斯一般公式的2-2过渡，他们获得约95%的总双电子复合率系数为基态，并期待在电离平衡的稳态等离子体的影响。它们证实了Smith等人（1985）的最新发现，即对于高电荷离子，Δ nc=0的二次自电离效应远不如Jacobs等人提出的显著。
The author calculates dielectronic recombination rate coefficients for the Be-like and B-like ions Fe22+ and Fe21+ using a multiconfiguration LS-coupling expansion and allowing for Delta nc=0 and Delta nc=1 autoionising transition into the continuum of excited states. The effect of intermediate coupling is also investigated and found to be less than 10%. They use autostructure-a general program for the calculation of multiconfiguration LS-coupling or intermediate-coupling autoionisation transition rates (incorporating superstructure)-to calculate the dielectronic recombination rate coefficient for the 1-2 and 2-3 core transitions. Together with the Burgess general formula for the 2-2 transition, they obtain about 95% of the total dielectronic recombination rate coefficient for ground state and look at its effect on the ionisation balance for a steady-state plasma. They confirm the recent findings of Smith et al. (1985) that the effect of Delta nc=0 secondary autoionisation is much less significant for highly charged ions than was suggested by Jacobs et al.