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Radiative parameters of Nb i excited states

Malcheva, G.; Nilsson, Hampus LU ; Engström, Lars LU ; Lundberg, Hans LU ; Biemont, E.; Palmeri, P.; Quinet, P. and Blagoev, K. (2011) In Monthly Notices of the Royal Astronomical Society 412(3). p.1823-1827
Abstract
Radiative lifetimes of 17 excited levels of Nb i, in the energy range 27 400-47 700 cm-1 (5p y 6D degrees(9/2), 5p x 6D degrees(7/2), 5p w 4G degrees(7/2,9/2,11/2), 5s5p v 4D degrees(1/2,3/2,5/2,7/2), 5s6p n 4D degrees(1/2,3/2,5/2,7/2), 5s6p o 4F degrees(3/2,5/2,7/2,9/2)), have been measured. For 15 of these levels, the lifetimes are obtained for the first time. The lifetimes were measured using the time-resolved laser-induced fluorescence technique and the experiments are complemented by a theoretical investigation using a relativistic Hartree-Fock method including core polarization. By combining the experimental lifetimes and the calculated branching fractions, we obtain transition probabilities for the individual de-excitation channels... (More)
Radiative lifetimes of 17 excited levels of Nb i, in the energy range 27 400-47 700 cm-1 (5p y 6D degrees(9/2), 5p x 6D degrees(7/2), 5p w 4G degrees(7/2,9/2,11/2), 5s5p v 4D degrees(1/2,3/2,5/2,7/2), 5s6p n 4D degrees(1/2,3/2,5/2,7/2), 5s6p o 4F degrees(3/2,5/2,7/2,9/2)), have been measured. For 15 of these levels, the lifetimes are obtained for the first time. The lifetimes were measured using the time-resolved laser-induced fluorescence technique and the experiments are complemented by a theoretical investigation using a relativistic Hartree-Fock method including core polarization. By combining the experimental lifetimes and the calculated branching fractions, we obtain transition probabilities for the individual de-excitation channels from the investigated levels. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
atomic data, atomic processes, methods: laboratory
in
Monthly Notices of the Royal Astronomical Society
volume
412
issue
3
pages
1823 - 1827
publisher
Wiley-Blackwell
external identifiers
  • wos:000289159100032
  • scopus:79953327880
ISSN
1365-2966
DOI
10.1111/j.1365-2966.2010.18020.x
language
English
LU publication?
yes
id
f1cc3e37-92f8-487e-ad06-4ade760ae4ad (old id 1918366)
date added to LUP
2011-05-13 16:07:43
date last changed
2017-09-17 03:53:45
@article{f1cc3e37-92f8-487e-ad06-4ade760ae4ad,
  abstract     = {Radiative lifetimes of 17 excited levels of Nb i, in the energy range 27 400-47 700 cm-1 (5p y 6D degrees(9/2), 5p x 6D degrees(7/2), 5p w 4G degrees(7/2,9/2,11/2), 5s5p v 4D degrees(1/2,3/2,5/2,7/2), 5s6p n 4D degrees(1/2,3/2,5/2,7/2), 5s6p o 4F degrees(3/2,5/2,7/2,9/2)), have been measured. For 15 of these levels, the lifetimes are obtained for the first time. The lifetimes were measured using the time-resolved laser-induced fluorescence technique and the experiments are complemented by a theoretical investigation using a relativistic Hartree-Fock method including core polarization. By combining the experimental lifetimes and the calculated branching fractions, we obtain transition probabilities for the individual de-excitation channels from the investigated levels.},
  author       = {Malcheva, G. and Nilsson, Hampus and Engström, Lars and Lundberg, Hans and Biemont, E. and Palmeri, P. and Quinet, P. and Blagoev, K.},
  issn         = {1365-2966},
  keyword      = {atomic data,atomic processes,methods: laboratory},
  language     = {eng},
  number       = {3},
  pages        = {1823--1827},
  publisher    = {Wiley-Blackwell},
  series       = {Monthly Notices of the Royal Astronomical Society},
  title        = {Radiative parameters of Nb i excited states},
  url          = {http://dx.doi.org/10.1111/j.1365-2966.2010.18020.x},
  volume       = {412},
  year         = {2011},
}