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Article Dans Une Revue Journal of Plasma Physics Année : 2016

Diagnostics of inhomogeneous plasmas: correction coefficients of the self-absorption and of the effect of spatial inhomogeneity

Résumé

A plasma spatial distribution model for a cylindrical geometry was developed to study the dependence of the spectral lines in the plasma emission spectra on plasma inhomogeneity and on the self-absorption effect. In this work, we consider a particular spatial distribution of a plasma. This distribution has allowed us to establish new correction coefficients of spectral lines on the self-absorption effect and to consider the media inhomogeneity effect. These coefficients are then used to analyse experimental spectral lines of emission of a single laser breakdown in an underwater medium. A spatial and time resolved spectroscopic method was used to study the spectrum. For the electron temperature and electron density measurements, trace impurities of Ca and K are added to the water.

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Dates et versions

hal-01463877 , version 1 (09-02-2017)

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Hssaïne Amamou, Alexandre Escarguel. Diagnostics of inhomogeneous plasmas: correction coefficients of the self-absorption and of the effect of spatial inhomogeneity . Journal of Plasma Physics, 2016, ⟨10.1017/S0022377816000283⟩. ⟨hal-01463877⟩
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