[en] Transitions between the five fine-structure levels in the 3s(2)3p(3) ground configuration of Fe XII (P-like) are of interest in astrophysics and terrestrial plasma diagnostics. The decay rates give rise to level lifetimes in the millisecond range, which have been measured recently at a heavy-ion storage ring. While most of the 3s(2)3p(2)3d levels are short-lived, two of these levels have no El decay channels and may also have millisecond lifetimes. We present HFR and MCDF calculations of the El, M1, E2 and M2 transition rates between the 3s(2)3p(3), 3s3p(4) and 3s(2)3p(2)3d levels and compare the lifetime results to most recent experimental data as well as to other predictions.
Disciplines :
Physics Chemistry
Author, co-author :
Biémont, Emile ; Université de Liège - ULiège > Département de physique > Physique nucléaire, atomique et spectroscopie
Palmeri, P.
Quinet, Pascal ; Université de Liège - ULiège > Département de physique > Physique nucléaire, atomique et spectroscopie
Trabert, E.
Zeippen, C. J.
Language :
English
Title :
Level lifetimes in 3p and 3d configurations of Fe XII
Publication date :
July 2002
Journal title :
European Physical Journal D -- Atoms, Molecules, Clusters and Optical Physics
ISSN :
1434-6060
Publisher :
Springer-Verlag, New York, United States - New York
