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Experimental wavelengths for intrashell transitions in tungsten ions with partially filled 3p and 3d subshells

Lennartsson, Thomas LU ; Clementson, Joel and Beiersdorfer, Peter (2013) In Physical Review A (Atomic, Molecular and Optical Physics) 87(6).
Abstract
Spectra and measured wavelengths of intrashell n = 3 transitions in highly charged tungsten ions with partially filled 3p and 3d valence shells, Al-like W61+ through Fe-like W48+, are presented. The ions were created and excited at the electron-beam ion-trap facility at the Lawrence Livermore National Laboratory and measured with a high-resolution grazing-incidence spectrometer. The spectral lines were studied in the 27-41 angstrom range and were analyzed by a comparison with synthetic spectra based on a collisional-radiative model. We determined that the emission includes not only electric-dipole-allowed transitions, but also several electric-quadrupole and magnetic-dipole transitions. Line-position uncertainties as low as 25 ppm were... (More)
Spectra and measured wavelengths of intrashell n = 3 transitions in highly charged tungsten ions with partially filled 3p and 3d valence shells, Al-like W61+ through Fe-like W48+, are presented. The ions were created and excited at the electron-beam ion-trap facility at the Lawrence Livermore National Laboratory and measured with a high-resolution grazing-incidence spectrometer. The spectral lines were studied in the 27-41 angstrom range and were analyzed by a comparison with synthetic spectra based on a collisional-radiative model. We determined that the emission includes not only electric-dipole-allowed transitions, but also several electric-quadrupole and magnetic-dipole transitions. Line-position uncertainties as low as 25 ppm were achieved. Thus, our measurements provide much-needed benchmarks for calculations of the atomic structure of highly charged ions with a partially filled subshell, since these ions are difficult to calculate due to electron-correlation effects. (Less)
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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review A (Atomic, Molecular and Optical Physics)
volume
87
issue
6
publisher
American Physical Society
external identifiers
  • wos:000320385800001
  • scopus:84879214568
ISSN
1050-2947
DOI
10.1103/PhysRevA.87.062505
language
English
LU publication?
yes
id
891fa070-b70c-45a0-b379-639a1ea2cd8e (old id 3987363)
date added to LUP
2016-04-01 11:06:21
date last changed
2020-08-05 01:41:04
@article{891fa070-b70c-45a0-b379-639a1ea2cd8e,
  abstract     = {Spectra and measured wavelengths of intrashell n = 3 transitions in highly charged tungsten ions with partially filled 3p and 3d valence shells, Al-like W61+ through Fe-like W48+, are presented. The ions were created and excited at the electron-beam ion-trap facility at the Lawrence Livermore National Laboratory and measured with a high-resolution grazing-incidence spectrometer. The spectral lines were studied in the 27-41 angstrom range and were analyzed by a comparison with synthetic spectra based on a collisional-radiative model. We determined that the emission includes not only electric-dipole-allowed transitions, but also several electric-quadrupole and magnetic-dipole transitions. Line-position uncertainties as low as 25 ppm were achieved. Thus, our measurements provide much-needed benchmarks for calculations of the atomic structure of highly charged ions with a partially filled subshell, since these ions are difficult to calculate due to electron-correlation effects.},
  author       = {Lennartsson, Thomas and Clementson, Joel and Beiersdorfer, Peter},
  issn         = {1050-2947},
  language     = {eng},
  number       = {6},
  publisher    = {American Physical Society},
  series       = {Physical Review A (Atomic, Molecular and Optical Physics)},
  title        = {Experimental wavelengths for intrashell transitions in tungsten ions with partially filled 3p and 3d subshells},
  url          = {http://dx.doi.org/10.1103/PhysRevA.87.062505},
  doi          = {10.1103/PhysRevA.87.062505},
  volume       = {87},
  year         = {2013},
}