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Forbidden-line spectroscopy of the ground-state configuration of Cd-like W

På svenska

Author

  • Z. Fei
  • W. Li
  • Jon Grumer
  • Z. Shi
  • R. Zhao
  • Tomas Brage
  • S. Huldt
  • K. Yao
  • R. Hutton
  • Y. Zou

Summary, in English

only using electric-dipole forbidden emission lines, in what we label forbidden-line spectroscopy, we identified several energy levels in cadmium-like tungsten, W26+. The spectrum was recorded at the Shanghai permanentmagnet electron beam ion trap in the visible region. The identifications were supported by large-scale multiconfiguration Dirac-Hartree-Fock calculations which involved careful investigations of core-valence and core-core correlation effects, and by relativistic many-body perturbation theory calculations. With this novel method we identified in all seven lines and measured their wavelengths. From this we can determine the relative position of seven energy levels. Due to the close degeneracy of two levels, we give alternative energies for three of the levels.

Publishing year

2014

Language

English

Publication/Series

Physical Review A (Atomic, Molecular and Optical Physics)

Volume

90

Issue

5

Document type

Journal article

Publisher

American Physical Society

Topic

  • Condensed Matter Physics

Status

Published

ISBN/ISSN/Other

  • ISSN: 1050-2947