Spectra of heliumlike carbon,aluminium and argon under strongly coupled plasma |
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Authors: | A N Sil J Anton S Fritzsche P K Mukherjee and B Fricke |
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Institution: | (1) Swedish Institute of Space Physics, P.O. Box 537, SE-751 21 Uppsala, Sweden;(2) Finnish Meteorological Institute, Helsinki, Finland;(3) Department of Physics, University of Oslo, Oslo, Norway;(4) Department of Space and Plasma Physics, Royal Institute of Technology, Stockholm, Sweden |
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Abstract: | Spectral line positions for the highly stripped helium like carbon, aluminium and argon embedded in
intense plasma environments have been calculated theoretically to compare with the existing data
available from laser plasma experiments. The changes in the ionization potentials for such ions have
been determined and the excitation energies, oscillator strengths and transition probabilities for
the transitions 1s2
1S → 1snp 1P (n=2-5) have been evaluated for the diagnostic
determination of such plasmas. The ion sphere (IS) model was used for estimating the effect of strongly
coupled plasma on the ions within the non-relativistic as well as the relativistic framework. Time dependent
perturbation theory has been applied for obtaining the linear response properties of the ions in the
non-relativistic approximation. The effects of the plasma environment on such properties of the ions under
the Debye screening model with suitable cut off radii have also been considered for comparing the data with
those obtained from the IS model of the plasma. |
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Keywords: | |
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