https://doi.org/10.1140/epjd/e2005-00256-8
Radiative lifetimes and transition probabilities in Ta I
1
Astrophysique et Spectroscopie, Université de Mons-Hainaut, 15 rue de la Halle, 7000 Mons, Belgium
2
IPNAS (Bât. B15), Université de Liège, 4000 Liège, Belgium
3
Department of Physics, Lund Institute of Technology, P.O. Box 118, 22100 Lund, Sweden
Corresponding author: a e.biemont@ulg.ac.be
Received:
23
June
2005
Revised:
10
August
2005
Published online:
20
September
2005
Radiative lifetimes of 14 odd-parity Ta I levels, belonging to the 
and 
configurations in the energy range from 30 664 to 45 256 cm-1, have been measured using the time-resolved laser-induced fluorescence technique. Extensive calculations, taking configuration interactions and core-polarisation effects into account, are able to reproduce in a satisfying way the available experimental results but suffer from the rather fragmentary knowledge of the level structure of this atom. New transition probabilities are deduced for a set of strong lines depopulating the levels investigated experimentally in the present work.
PACS: 31.25.-v – Electron correlation calculations for atoms and molecules / 52.38.-r – Laser-plasma interactions
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2005
