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Ideal Coulomb Plasma Approximation in Line Shape Models: Problematic Issues

Aix Marseille Université, CNRS, PIIM UMR 7345, Marseille 13397, France
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Atoms 2014, 2(2), 253-258; https://doi.org/10.3390/atoms2020253
Received: 23 March 2014 / Revised: 11 June 2014 / Accepted: 13 June 2014 / Published: 19 June 2014
(This article belongs to the Special Issue Spectral Line Shapes in Plasmas)
In weakly coupled plasmas, it is common to describe the microfield using a Debye model. We examine here an “artificial” ideal one-component plasma with an infinite Debye length, which has been used for the test of line shape codes. We show that the infinite Debye length assumption can lead to a misinterpretation of numerical simulations results, in particular regarding the convergence of calculations. Our discussion is done within an analytical collision operator model developed for hydrogen line shapes in near-impact regimes. When properly employed, this model can serve as a reference for testing the convergence of simulations. View Full-Text
Keywords: Stark broadening; hydrogen plasmas; numerical simulations; collision operators Stark broadening; hydrogen plasmas; numerical simulations; collision operators
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Rosato, J.; Capes, H.; Stamm, R. Ideal Coulomb Plasma Approximation in Line Shape Models: Problematic Issues. Atoms 2014, 2, 253-258.

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