Metastable levels in Sc II: lifetime measurements and calculations

Research output: Contribution to journalArticle


The lifetime of the metastable level 3d(21)G(4) in a singly charged scandium has been experimentally investigated at the ion storage ring CRYRING. A laser probing technique has been used for the studies. We also report calculated lifetimes and transition rates for 10 metastable levels in Sc II, including the 3d(21)G(4) state, by calculations using configuration interaction wave functions. The lifetime of the (1)G(4) level is experimentally determined to be tau(exp) = 2.64 +/- 0.18 s and is in good agreement with the theoretical calculation tau(th) = 2.84 s.


  • P. Lundin
  • J. Gurell
  • S. Mannervik
  • P. Royen
  • L.-O. Norlin
  • Henrik Hartman
  • A. Hibbert
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Astronomy, Astrophysics and Cosmology
Original languageEnglish
JournalPhysica Scripta
Issue number1
Publication statusPublished - 2008
Publication categoryResearch