Eur. Phys. J. D 27, 33-41 (2003)
https://doi.org/10.1140/epjd/e2003-00235-1

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

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

Corresponding authors: ^a E.Biemont@ulg.ac.be - ^b ph.lefebvre@ulg.ac.be - ^c Pascal.Quinet@umh.ac.be - ^d Sune.svanberg@fysik.lth.se - ^e Huailiang.Xu@fysik.lth.se

Received: 26 March 2003
Revised: 16 May 2003
Published online: 29 July 2003

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.