Effective temperatures in hot dense plasmas

In medium- and high- Z hot dense non-local thermodynamic equilibrium plasmas a standard level-by-level collisional-radiative model cannot be used because of the excessive number of levels involved. Gathering the levels into large ensembles is a convenient way for reducing the complexity of the calcu...

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Bibliographic Details
Published in:Journal of quantitative spectroscopy & radiative transfer 2006-05, Vol.99 (1), p.55-66
Main Authors: Bauche, J., Bauche-Arnoult, C., Peyrusse, O.
Format: Article
Language:English
Subjects:
Collisional-radiative models
Non-LTE plasmas
Populations in plasmas
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Summary:In medium- and high- Z hot dense non-local thermodynamic equilibrium plasmas a standard level-by-level collisional-radiative model cannot be used because of the excessive number of levels involved. Gathering the levels into large ensembles is a convenient way for reducing the complexity of the calculations. A review is given of these approaches, whereby effective temperatures have been evidenced, and calculated ab initio. Numerical examples are presented in germanium and gold plasmas. The physical origin of these temperatures is discussed.
ISSN:0022-4073
1879-1352
DOI:10.1016/j.jqsrt.2005.05.003