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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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author
; and
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
2024-04-22 05:01:05
@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}},
}