Metastable levels in Sc II: lifetime measurements and calculations
Lundin, P.; Gurell, J.; Mannervik, S.; Royen, P., et al. (2008). Metastable levels in Sc II: lifetime measurements and calculations. Physica Scripta, 78, (1)
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Published
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English
Authors:
Lundin, P.
;
Gurell, J.
;
Mannervik, S.
;
Royen, P.
, et al.
Department:
Lund Observatory - Has been reorganised
Atomic Astrophysics-lup-obsolete
Research Group:
Atomic Astrophysics-lup-obsolete
Abstract:
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.
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