[en] Radiative lifetimes of 14 odd-parity Ta I levels, belonging to the 5d(3)6s6p and 5d(4)6p 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 corepolarisation 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.
Disciplines :
Physics Chemistry
Author, co-author :
Fivet, V.
Palmeri, P.
Quinet, Pascal ; Université de Liège - ULiège > Département de physique > Physique nucléaire, atomique et spectroscopie
Biémont, Emile ; Université de Liège - ULiège > Département de physique > Physique nucléaire, atomique et spectroscopie
Xu, H. L.
Svanberg, S.
Language :
English
Title :
Radiative lifetimes and transition probabilities in TaI
Publication date :
January 2006
Journal title :
European Physical Journal D. Atoms, Molecules, Clusters and Optical Physics
