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Spectral Modeling of Hydrogen Radiation Emission in Magnetic Fusion Plasmas

PIIM laboratory, Aix-Marseille Université and Centre national de la recherche scientifique (CNRS), F-13397 Marseille, France
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Atoms 2019, 7(1), 23; https://doi.org/10.3390/atoms7010023
Received: 11 December 2018 / Revised: 30 January 2019 / Accepted: 1 February 2019 / Published: 12 February 2019
(This article belongs to the Special Issue SPIG2018)
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Abstract

Modeling of the spectral line and continuum radiation emitted by hydrogen isotopes in peripheral regions of magnetic fusion is presented through profiles of the Zeeman-Doppler broadened Hα/Dα line and those of the Stark broadened high-n Balmer lines extending beyond the series limit for recombining plasmas. The Hα/Dα line profiles should be modelled while accounting for several populations of neutrals to mimic real situations and analyze experimental data for isotopic ratio determination. On the other side, high-n Balmer lines of hydrogen are used for plasma electron density and temperature diagnostics. Moreover, modelling whole spectra including the continuum radiation contributes to the development of synthetic diagnostics for future magnetic fusion devices for which they can give predictive results through coupling to numerical simulation tools. View Full-Text
Keywords: plasma spectroscopy; Stark broadening; plasma diagnostics; line shape modeling; Zeeman-Doppler broadening; Balmer line series; radiative recombination plasma spectroscopy; Stark broadening; plasma diagnostics; line shape modeling; Zeeman-Doppler broadening; Balmer line series; radiative recombination
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Koubiti, M.; Sheeba, R.R. Spectral Modeling of Hydrogen Radiation Emission in Magnetic Fusion Plasmas. Atoms 2019, 7, 23.

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