中国物理B ›› 2005, Vol. 14 ›› Issue (8): 1559-1565.doi: 10.1088/1009-1963/14/8/015

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Transition energy and oscillator strength of Sc18+ ion

王治文, 杨迪, 胡木宏, 韩秋菊, 李金英   

  1. School of Physics and Electronic Technology, Liaoning NormalUniversity, Dalian 116029, China
  • 收稿日期:2005-02-23 修回日期:2005-03-18 出版日期:2005-07-13 发布日期:2005-08-20
  • 基金资助:
    Project supported by the NationalNatural Science Foundation of China (Grand No 10474029).

Transition energy and oscillator strength of Sc18+ ion

Wang Zhi-Wen (王治文), Yang Di (杨迪), Hu Mu-Hong (胡木宏), Han Qiu-Ju (韩秋菊), Li Jin-Ying (李金英)   

  1. School of Physics and Electronic Technology, Liaoning NormalUniversity, Dalian 116029, China
  • Received:2005-02-23 Revised:2005-03-18 Online:2005-07-13 Published:2005-08-20
  • Supported by:
    Project supported by the NationalNatural Science Foundation of China (Grand No 10474029).

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摘要： The transition energies and the dipole oscillator strengths for the 1s22s--1s2np (2≤n≤9) and 1s22p--1s2nd (3≤n ≤9) of lithium-like Sc18+ ion are calculated by using the full core plus correlation method. The fine structure splittings of 1s2np and 1s2nd (n ≤9) states are determined from the expectation values of spin-orbit and spin-other-orbit interaction operators. The quantum defects of these series, as function of principal quantum number n, are obtained. The agreement between the f-values obtained from three alternative formulae is excellent. Comparisons of our results with experimental data available in the literature are carried out.Combining the single-channel quantum defect theory with the discrete oscillator strengths obtained in this work, this paper obtains the behaviour of discrete oscillator strengths and oscillator strength densities corresponding to the bound-free transitions adjacent to ionization threshold.

关键词: Sc+18 ion, transition energy, fine structure, oscillator strength

Abstract: The transition energies and the dipole oscillator strengths for the 1s22s--1s2np (2≤n≤9) and 1s22p--1s2nd (3≤n≤9) of lithium-like Sc18+ ion are calculated by using the full core plus correlation method. The fine structure splittings of 1s2np and 1s2nd (n ≤9) states are determined from the expectation values of spin-orbit and spin-other-orbit interaction operators. The quantum defects of these series, as function of principal quantum number n, are obtained. The agreement between the f-values obtained from three alternative formulae is excellent. Comparisons of our results with experimental data available in the literature are carried out.Combining the single-channel quantum defect theory with the discrete oscillator strengths obtained in this work, this paper obtains the behaviour of discrete oscillator strengths and oscillator strength densities corresponding to the bound-free transitions adjacent to ionization threshold.

Key words: Sc+18 ion, transition energy, fine structure, oscillator strength

中图分类号:  (Oscillator strengths, lifetimes, transition moments)

  • 32.70.Cs
32.10.Fn (Fine and hyperfine structure) 31.15.-p (Calculations and mathematical techniques in atomic and molecular physics)