Measurement of radiative lifetimes in Sm II

We have measured the radiative lifetimes of 82 levels of Sm II using the beam-laser method. The levels studied had term energies up to ~29 600 cm –1 and lifetimes in the range 9–190 ns. Experimental uncertainty was less than 7%, with a typical value of 1.6%. We have used these lifetimes to update tr...

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Bibliographic Details
Published inCanadian journal of physics Vol. 80; no. 12; pp. 1621 - 1629
Main Authors Scholl, T J, Holt, R A, Masterman, D, Rivest, R C, Rosner, S D, Sharikova, A
Format Journal Article
LanguageEnglish
Published Ottawa, Canada NRC Research Press 01.12.2002
Canadian Science Publishing NRC Research Press
Subjects
Abundance
Physics
Radiation
Radiative lifetime
Rare earth elements
Stars & galaxies
Transition probabilities
Uncertainty
Wavelengths
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Summary:We have measured the radiative lifetimes of 82 levels of Sm II using the beam-laser method. The levels studied had term energies up to ~29 600 cm –1 and lifetimes in the range 9–190 ns. Experimental uncertainty was less than 7%, with a typical value of 1.6%. We have used these lifetimes to update transition probabilities for 35 transitions in the wavelength range 363–771 nm, which are useful for stellar abundance determinations. PACS Nos.: 32.70Cs, 95.30Ky
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
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ISSN:0008-4204
1208-6045
DOI:10.1139/p02-122