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Experimental transition probabilities and improved level energies in YbIII

Öberg, Kasper LU and Lundberg, Hans LU (2007) In European Physical Journal D. Atomic, Molecular, Optical and Plasma Physics 42(1). p.15-34
Abstract
Radiative lifetimes of nine out of the twelve 4f(13)6p levels in Yb III have been measured, seven of these for the first time. A Penning discharge lamp is introduced as a continuous plasma source, in which the lifetimes are determined with the time-resolved laser-induced fluorescence technique by pumping from metastable 5d and 6s levels. Spectra of the same source are recorded with a Fourier-transform spectrometer, which are used to derive branching fractions of the 6p and 7s levels. Combined with the lifetimes, the branching fractions are used to determine 81 experimental transition probabilities. Wavelengths of 142 Yb III transitions are measured and the uncertainties of corresponding Ritz wavenumbers are improved by an order of... (More)
Radiative lifetimes of nine out of the twelve 4f(13)6p levels in Yb III have been measured, seven of these for the first time. A Penning discharge lamp is introduced as a continuous plasma source, in which the lifetimes are determined with the time-resolved laser-induced fluorescence technique by pumping from metastable 5d and 6s levels. Spectra of the same source are recorded with a Fourier-transform spectrometer, which are used to derive branching fractions of the 6p and 7s levels. Combined with the lifetimes, the branching fractions are used to determine 81 experimental transition probabilities. Wavelengths of 142 Yb III transitions are measured and the uncertainties of corresponding Ritz wavenumbers are improved by an order of magnitude from the prior values. The energy of the 5d (5/2,5/2)(o)(o) level has been shifted 144.20 cm(-1) to the higher value 45421.045 cm(-1). Much emphasis is put on data treatment and error analysis. (Less)
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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
European Physical Journal D. Atomic, Molecular, Optical and Plasma Physics
volume
42
issue
1
pages
15 - 34
publisher
EDP Sciences
external identifiers
  • wos:000245788200003
  • scopus:33847679407
ISSN
1434-6060
DOI
10.1140/epjd/e2007-00002-4
language
English
LU publication?
yes
id
fbc3cca3-e72c-4af4-8fbb-64e4c38697bb (old id 666009)
date added to LUP
2007-12-17 16:21:13
date last changed
2017-01-01 06:56:30
@article{fbc3cca3-e72c-4af4-8fbb-64e4c38697bb,
  abstract     = {Radiative lifetimes of nine out of the twelve 4f(13)6p levels in Yb III have been measured, seven of these for the first time. A Penning discharge lamp is introduced as a continuous plasma source, in which the lifetimes are determined with the time-resolved laser-induced fluorescence technique by pumping from metastable 5d and 6s levels. Spectra of the same source are recorded with a Fourier-transform spectrometer, which are used to derive branching fractions of the 6p and 7s levels. Combined with the lifetimes, the branching fractions are used to determine 81 experimental transition probabilities. Wavelengths of 142 Yb III transitions are measured and the uncertainties of corresponding Ritz wavenumbers are improved by an order of magnitude from the prior values. The energy of the 5d (5/2,5/2)(o)(o) level has been shifted 144.20 cm(-1) to the higher value 45421.045 cm(-1). Much emphasis is put on data treatment and error analysis.},
  author       = {Öberg, Kasper and Lundberg, Hans},
  issn         = {1434-6060},
  language     = {eng},
  number       = {1},
  pages        = {15--34},
  publisher    = {EDP Sciences},
  series       = {European Physical Journal D. Atomic, Molecular, Optical and Plasma Physics},
  title        = {Experimental transition probabilities and improved level energies in YbIII},
  url          = {http://dx.doi.org/10.1140/epjd/e2007-00002-4},
  volume       = {42},
  year         = {2007},
}