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Experimental oscillator strengths in Th II
Atomic Astrophysics, Lund Observatory, Lund University, PO Box 43, 22100 Lund, Sweden.ORCID iD: 0000-0003-0375-6076
Atomic Physics, Department of Physics, Lund Institute of Technology, PO Box 118, 22100 Lund, Sweden.
Atomic Physics, Department of Physics, Lund Institute of Technology, PO Box 118, 22100 Lund, Sweden.
Atomic Astrophysics, Lund Observatory, Lund University, PO Box 43, 22100 Lund, Sweden.
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2002 (English)In: Astronomy and Astrophysics, ISSN 0004-6361, E-ISSN 1432-0746, Vol. 382, no 1, p. 368-377Article in journal (Refereed) Published
Abstract [en]

We have measured radiative lifetimes of ten Th II levels by using the laser-induced fluorescence technique and branching fractions with Fourier transform spectroscopy. By combining the new branching fractions with a total of 23 lifetimes, from the present work and from measurements by Simonsen et al. ([CITE]), absolute oscillator strengths for 180 lines have been derived. Some of these new f-values reported are relevant for radioactive dating of stars.

 

Place, publisher, year, edition, pages
EDP Sciences, 2002. Vol. 382, no 1, p. 368-377
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Atom and Molecular Physics and Optics
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URN: urn:nbn:se:mau:diva-63251DOI: 10.1051/0004-6361:20011597ISI: 000173522500034Scopus ID: 2-s2.0-0036187922OAI: oai:DiVA.org:mau-63251DiVA, id: diva2:1807668
Available from: 2023-10-27 Created: 2023-10-27 Last updated: 2023-11-17Bibliographically approved

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Nilsson, H.

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