Spatially resolved determination of the electronic density and temperature by a visible spectro-tomography diagnostic in a linear magnetized plasma.

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2020
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Abstract
In this work, a non-intrusive, spatially resolved, spectro-tomographic optical diagnostic of the electronic density and temperature on the linear plasma column Mistral is presented. Coupling of spectroscopy and tomography technique gives access to the local plasma light emission at different wavelengths (visible and near IR) in an argon plasma. Taking advantage of the symmetry of the Mistral experiment, the diagnostic results are validated and the plasma is found to correspond to a corona equilibrium state. With the use of another spectrometer and a Langmuir probe, we propose a non-intrusive method to determine the electronic density and temperature of each pixel of the tomographic images of the plasma. The obtained results are in good agreement with the Langmuir probe ones.
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gonzalezfernandez2020spatiallyscientific Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Gonzalez-Fernandez, V;David, P;Baude, R;Escarguel, A;Camenen, Y;
Journal Scientific reports
Year 2020
DOI
10.1038/s41598-020-62426-9
URL
Keywords
sun: coronal mass ejections (cmes) sun: flares magnetohydrodynamics (mhd) solar-terrestrial relations stars: magnetic field stars: solar-type

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