中国物理B ›› 2008, Vol. 17 ›› Issue (5): 1845-1847.doi: 10.1088/1674-1056/17/5/049

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The effect of configuration complex on dielectronic recombination process in highly ionized plasmas

焦荣珍, 冯晨旭   

  1. School of Sciences, Beijing University of Posts and Telecommunications, Beijing 100876, China
  • 收稿日期:2007-02-03 修回日期:2007-08-23 出版日期:2008-05-20 发布日期:2008-05-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No 60054402).

The effect of configuration complex on dielectronic recombination process in highly ionized plasmas

Jiao Rong-Zhen(焦荣珍)† and Feng Chen-Xu(冯晨旭)   

  1. School of Sciences, Beijing University of Posts and Telecommunications, Beijing 100876, China
  • Received:2007-02-03 Revised:2007-08-23 Online:2008-05-20 Published:2008-05-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No 60054402).

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摘要： This paper analyses the effect of configuration complex on dielectronic recombination (DR) process in highly ionized plasmas (Xe26+, Dy38+, W46+) by using the multiconfiguration relativistic Hartree--Fock method. Resonant and nonresonant radiative stabilizing transitions and decays to autoionizing levels followed by radiative cascades are included. Collisional transitions following electron capture are neglected. The remarkable difference between the isoelectronic trend of the rate coefficients for DR through 3d9414l' and through 3d94l 5l' is emphasized. The trend of DR through 3d94l4l' shows irregularities at relatively low temperature due to the progressive closing of DR channels as atomic number Z increases.

关键词: dielectronic recombination, autoionization, radiative-decay

Abstract: This paper analyses the effect of configuration complex on dielectronic recombination (DR) process in highly ionized plasmas (Xe26+, Dy38+, W46+) by using the multiconfiguration relativistic Hartree--Fock method. Resonant and nonresonant radiative stabilizing transitions and decays to autoionizing levels followed by radiative cascades are included. Collisional transitions following electron capture are neglected. The remarkable difference between the isoelectronic trend of the rate coefficients for DR through 3d94l'4l' and through 3d94l'5l'' is emphasized. The trend of DR through 3d94l'4l'' shows irregularities at relatively low temperature due to the progressive closing of DR channels as atomic number Z increases.

Key words: dielectronic recombination, autoionization, radiative-decay

中图分类号:  (Ionization of plasmas)

  • 52.25.Jm
31.15.xr (Self-consistent-field methods) 32.80.Zb (Autoionization) 34.80.Lx (Recombination, attachment, and positronium formation)