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Metastable levels in ScII: lifetime measurements and calculations
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2008 (English)In: Physica Scripta, ISSN 0031-8949, E-ISSN 1402-4896, Vol. 78, no 1, 015301- p.Article in journal (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
2008. Vol. 78, no 1, 015301- p.
Keyword [en]
ION STORAGE-RING; FERRUM PROJECT; ETA-CARINAE; ASTROPHYSICAL APPLICATIONS; TRANSITION-PROBABILITIES; OSCILLATOR-STRENGTHS; GENERAL PROGRAM; ATOMIC STATES; EXCITATION; LINES
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Physical Sciences
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URN: urn:nbn:se:kth:diva-36313DOI: 10.1088/0031-8949/78/01/015301ISI: 000258143600018Scopus ID: 2-s2.0-47749103351OAI: oai:DiVA.org:kth-36313DiVA: diva2:430596
Note
QC 20110711Available from: 2011-07-11 Created: 2011-07-11 Last updated: 2017-12-11Bibliographically approved

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