Radiative lifetime measurements and oscillator strength determination for transitions in singly ionized praseodymium (Pr II)期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

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Radiative lifetime measurements and oscillator strength determination for transitions in singly ionized praseodymium (Pr II)

Authors:	Email author" target="_blank">E?Biémont Email author P-H?Lefèbvre P?Quinet S?Svanberg H?L?Xu

Institution:	(1) Astrophysique et Spectroscopie, Université de Mons-Hainaut, 7000 Mons, Belgium;(2) IPNAS, Université de Liège, Sart Tilman B15, 4000 Liège, Belgium;(3) Department of Physics, Lund Institute of Technology, PO Box 118, 221 00, Lund, Sweden

Abstract:	New radiative lifetimes for 20 levels of Pr II have been measured using the time-resolved laser-induced fluorescence (LIF) technique. The combination of these experimental values with theoretical branching fractions (BF) obtained with the pseudo-relativistic Hartree-Fock (HFR) approach has allowed us to determine oscillator strengths and transition probabilities for about 150 lines appearing in the spectral region between 369.9 and 741.2 nm. A detailed discussion of our new results and comparisons with previous data are also given in the present paper.Received: 26 March 2003, Published online: 29 July 2003PACS: 32.70.Cs Oscillator strengths, lifetimes, transition moments - 42.62.Fi Laser spectroscopy

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