Experimental lifetime determination in neutral praseodymium (Pr I) and neodymium (Nd I)

E Biemont, P Quinet, Sune Svanberg, Huailiang Xu

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Abstract

Radiative lifetime measurements have been performed, with a time-resolved laser-induced fluorescence technique, for 18 even-parity levels of Pr I and 15 odd-parity levels of Nd I. The new results are compared with the few experimental data available in the literature and good agreement is found. However, fragmentary knowledge of the spectra prevents reliable calculation of branching fractions and calls for additional laboratory efforts in order to provide the astrophysicists with reliable transition probabilities needed for investigating the magnetic fields in chemically peculiar stars.
Original languageEnglish
Pages (from-to)1381-1389
JournalJournal of Physics B: Atomic, Molecular and Optical Physics
Volume37
Issue number7
DOIs
Publication statusPublished - 2004

Subject classification (UKÄ)

  • Atom and Molecular Physics and Optics

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