Dielectronic recombination in He-like, Li-like, and Be-like highly charged ions in the KLL and KLM manifolds
Dielectronic recombination in He-like, Li-like, and Be-like highly charged ions in the KLL and KLM manifolds
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DOI：
10.1103/physreva.81.022712
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发表时间：
2010-02
影响因子：
2.9
通讯作者：
A. Kavanagh;H. Watanabe;Yibin Li;B. O’Rourke;Hirotsugu Tobiyama;N. Nakamura;S. McMahon;C. Yamada;S. Ohtani;F. Currell
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文献类型：
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作者：
A. Kavanagh;H. Watanabe;Yibin Li;B. O’Rourke;Hirotsugu Tobiyama;N. Nakamura;S. McMahon;C. Yamada;S. Ohtani;F. Currell
本文系统地研究了类He、类Li和类Be离子的双电子复合共振强度与原子序数的关系。最近测量的双电子复合共振强度的KLL和KLM歧管的铁，Y，碘，Ho，和铋也被描述。对共振强度进行归一化处理，计算出电子碰撞电离截面。实验测得的共振强度与采用扭曲波近似的理论计算结果基本一致。然而，对高原子序开壳层离子的KLM共振强度测量给出了比计算结果更高的值。利用最近的测量数据，结合现有的结果，已经生成了KLL和KLM流形中类He、类Li和类Be离子的标度律作为原子序数的函数。
This paper reports a systematic study of the dependence on atomic number of the dielectronic recombination resonance strengths for He-like, Li-like and Be-like ions. Recent measurements of dielectronic recombination resonance strengths for the KLL and KLM manifolds for iron, yttrium, iodine, holmium, and bismuth are also described. The resonance strengths were normalized to calculated electron impact ionization cross sections. The measured resonance strengths generally agree well with theoretical calculations using the distorted wave approximation. However, KLM resonance strength measurements on high atomic number open-shell ions gave higher values than those suggested by calculations. Using recently measured data, along with existing results, scaling laws have been generated as a function of atomic number for He-like, Li-like, and Be-like ions in the KLL and KLM manifolds.