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Tungsten spectroscopy at the Livermore electron beam ion trap facility

Clementson, J.; Beiersdorfer, P.; Brown, G. V.; Gu, M. F.; Lundberg, Hans LU ; Podpaly, Y. and Traebert, E. (2011) In Canadian Journal of Physics 89(5). p.571-580
Abstract
The utilization of tungsten spectroscopy for diagnostics of magnetically confined fusion plasmas requires the radiative properties of tungsten ions to be accurately known. At the Lawrence Livermore National Laboratory, a program to gather spectroscopic data on tungsten ions has been initiated with the purpose to study spectral signatures and identify candidate fusion plasma diagnostics. In this paper, an overview of recent results from the Livermore WOLFRAM spectroscopy project is presented, which includes experimental investigations at the EBIT-I and SuperEBIT electron beam ion traps. In particular, the spectra of highly charged M-and L-shell tungsten ions have been studied. These investigations cover energy measurements of n = 2 to n =... (More)
The utilization of tungsten spectroscopy for diagnostics of magnetically confined fusion plasmas requires the radiative properties of tungsten ions to be accurately known. At the Lawrence Livermore National Laboratory, a program to gather spectroscopic data on tungsten ions has been initiated with the purpose to study spectral signatures and identify candidate fusion plasma diagnostics. In this paper, an overview of recent results from the Livermore WOLFRAM spectroscopy project is presented, which includes experimental investigations at the EBIT-I and SuperEBIT electron beam ion traps. In particular, the spectra of highly charged M-and L-shell tungsten ions have been studied. These investigations cover energy measurements of n = 2 to n = 2, 3 transitions in Ne-like W64+ through Li-like W71+ ions and soft X-ray measurements of n = 3 to n = 3, 4 transitions in M-shell ions with emphasis on the Ni-like W46+ and Si-like W60+ through Na-like W63+ ions. The measurements are complemented by atomic-structure calculations and spectral modeling using the Flexible Atomic Code (FAC). (Less)
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author
organization
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type
Contribution to journal
publication status
published
subject
in
Canadian Journal of Physics
volume
89
issue
5
pages
571 - 580
publisher
NRC Research Press
external identifiers
  • wos:000291476700009
  • scopus:80051503038
ISSN
0008-4204
DOI
10.1139/P11-028
language
English
LU publication?
yes
id
bdad9b0b-0b3b-4519-8176-54f9050d2648 (old id 1985005)
date added to LUP
2011-07-08 09:35:46
date last changed
2017-04-23 03:14:30
@article{bdad9b0b-0b3b-4519-8176-54f9050d2648,
  abstract     = {The utilization of tungsten spectroscopy for diagnostics of magnetically confined fusion plasmas requires the radiative properties of tungsten ions to be accurately known. At the Lawrence Livermore National Laboratory, a program to gather spectroscopic data on tungsten ions has been initiated with the purpose to study spectral signatures and identify candidate fusion plasma diagnostics. In this paper, an overview of recent results from the Livermore WOLFRAM spectroscopy project is presented, which includes experimental investigations at the EBIT-I and SuperEBIT electron beam ion traps. In particular, the spectra of highly charged M-and L-shell tungsten ions have been studied. These investigations cover energy measurements of n = 2 to n = 2, 3 transitions in Ne-like W64+ through Li-like W71+ ions and soft X-ray measurements of n = 3 to n = 3, 4 transitions in M-shell ions with emphasis on the Ni-like W46+ and Si-like W60+ through Na-like W63+ ions. The measurements are complemented by atomic-structure calculations and spectral modeling using the Flexible Atomic Code (FAC).},
  author       = {Clementson, J. and Beiersdorfer, P. and Brown, G. V. and Gu, M. F. and Lundberg, Hans and Podpaly, Y. and Traebert, E.},
  issn         = {0008-4204},
  language     = {eng},
  number       = {5},
  pages        = {571--580},
  publisher    = {NRC Research Press},
  series       = {Canadian Journal of Physics},
  title        = {Tungsten spectroscopy at the Livermore electron beam ion trap facility},
  url          = {http://dx.doi.org/10.1139/P11-028},
  volume       = {89},
  year         = {2011},
}