Oscillator Strengths and Rare-Gas-Induced Broadening of the Principal Series Lines of Ba

Kiyoshi Ueda, Yoshihiro Hamaguchi, Takashi Fujimoto, Kuniya Fukuda

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9 Citations (Scopus)

Abstract

Oscillator strengths have been determined for 23 transitions from the ground level of Ba relative to that of the resonance line by the hook method. The results are in good agreement with other experimental values. Rate coefficients of He-, Ar- and Kr-induced broadening have been measured for 6 s2 1 S0 -6 s n P1 ( n =7 to 10), 6 s2 1 S0 -5 d n P1 ( n =6 and 7), and 6 s2 1 S0 -5d7p 3D1 and 3P1 by the total absorption method. We find that, generally, the rate coefficient increases monotonously to its maximum value and then decreases with the effective principal quantum number of the upper level relative to the first ionization limit. For 6 s2 1 S0 -5d7p 3P1 and 3D1, the rate coefficients deviate from this tendency and show minimum values. This singularity is explained qualitatively on the basis of the Fermi potential model by taking account of the configuration mixing.

Original languageEnglish
Pages (from-to)2501-2505
Number of pages5
Journaljournal of the physical society of japan
Volume53
Issue number8
DOIs
Publication statusPublished - 1984

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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