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University Lecturer Nina Reistad MSc, PhD

Nina Reistad

Senior lecturer

University Lecturer Nina Reistad MSc, PhD

Accurate transition probabilities in ions obtained by isoelectronic smoothing of line strengths

Author

  • N. Reistad
  • I. Martinson

Summary, in English

Lifetime measurements, based on the method of beam-foil spectroscopy, together with careful corrections for cascade effects, have in recent years yielded the line strength of the 2s2 1S-2s2p 1P°transition in Be-like ions with uncertainties ranging from 3.4% to 8.1% in Bei-O. By applying a method of isoelectronic smoothing of line strengths, similar to those earlier used for excitation energies and transition wavelengths, we have reduced the experimental uncertainties by about a factor of 2, to 1.9-3.6 % for these transitions. The fitted results are in excellent agreement with the best theoretical data. The applicability of this method to other isoelectronic sequences is briefly discussed.

Department/s

  • Department of Physics

Publishing year

1986

Language

English

Pages

2632-2637

Publication/Series

Physical Review A

Volume

34

Issue

4

Document type

Journal article

Publisher

American Physical Society

Topic

  • Atom and Molecular Physics and Optics

Status

Published

ISBN/ISSN/Other

  • ISSN: 1050-2947