Lifetime measurements and calculated transition probabilities in W III

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Abstract

New experimental lifetimes for two levels in doubly ionized tungsten, W III, have been obtained using the time-resolved laser-induced-fluorescence technique. Theoretical oscillator strengths obtained from a HFR calculation including the effects of core-polarization are reported for all transitions from levels below E < 70000 cm(-1) and with log g f >= -2, thus greatly extending our knowledge of the radiative data in W III. Good agreement is found between the calculated lifetimes and the experimental values from this and previous works. These new results fill a gap in the available data for this ion which is expected to play an important role in fusion reactors.

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Subject classification (UKÄ) – MANDATORY

  • Astronomy, Astrophysics and Cosmology
  • Atom and Molecular Physics and Optics
Original languageEnglish
JournalPhysica Scripta
Volume78
Issue number1
Publication statusPublished - 2008
Publication categoryResearch
Peer-reviewedYes