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.
Received: 23 February 2005
Revised: 18 March 2005
Accepted manuscript online:
(Calculations and mathematical techniques in atomic and molecular physics)
Fund: Project supported by the NationalNatural Science Foundation of China (Grand No 10474029).
Cite this article:
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) Transition energy and oscillator strength of Sc18+ ion 2005 Chinese Physics 14 1559
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