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Träfflista för sökning "WFRF:(Schultz Johanning M) "

Search: WFRF:(Schultz Johanning M)

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1.
  • Sikstrom, C. M, et al. (author)
  • The FERRUM project: experimental lifetimes of highly excited FeII 3d(6)4p levels and transition probabilities
  • 1999
  • In: Journal of Physics B: Atomic, Molecular and Optical Physics. - : IOP Publishing. - 0953-4075 .- 1361-6455. ; 32:24, s. 5687-5698
  • Journal article (peer-reviewed)abstract
    • We report on measurements of radiative lifetimes in singly ionized iron of six 3d(6)4p levels between 61 512 and 64 041 cm(-1),using time resolved laser-induced fluorescence. Absolute oscillator strengths of 18 Fe II lines in the wavelength range from 2350 to 2800 Angstrom have been obtained by measuring branching fractions for the lines from two Fe II levels with a Fourier-transform spectrometer. The uncertainty in the lifetimes is between 8% and 13%, whereas the uncertainty of the f-values varies between 9% and 19%. A comparison with several previously published values is given.
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2.
  • Schultz-Johanning, M, et al. (author)
  • Lifetimes, branching fractions, and oscillator strengths of doubly ionized Tungsten
  • 2001
  • In: Physica Scripta. Topical Issues. - 0281-1847. ; 63:5, s. 367-371
  • Journal article (peer-reviewed)abstract
    • A first small set of W III oscillator strengths has been obtained from combined lifetime and branching fraction measurements. The branching fractions in the wavelength region of 154-334 nm were measured with a Penning discharge and a Fourier transform spectrometer. Three levels have been calibrated on absolute scales with lifetimes measured with the time-resolved laser-induced fluorescence technique. The f-values derived have uncertainties of about 8% at best. A comparison with Cowan-code calculations is given since no other data are available in the literature.
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  • Result 1-2 of 2
Type of publication
journal article (2)
Type of content
peer-reviewed (2)
Author/Editor
Johansson, S (2)
Lundberg, Hans (2)
Schultz-Johanning, M (2)
Schnabel, R. (1)
Li, Z (1)
Nilsson, H (1)
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Raassen, A. J. J. (1)
Li, Z. S (1)
Kock, M. (1)
Kock, H (1)
Sikstrom, C. M (1)
Kling, R (1)
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University
Lund University (2)
Malmö University (1)
Language
English (2)
Research subject (UKÄ/SCB)
Natural sciences (2)

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