Abstract: A noninvasive diagnostic technique relying on optical emission spectroscopy is used for studying plasma confined in a purely toroidal magnetic field. Visible emission lines of molecular hydrogen were specifically targeted. Bi-dimensional structures and poloidal plasma profiles were reconstructed from the emissivity distribution of hydrogen Fulcher system using a tomographic method. A few details concerning the methods employed to capture different emission viewlines, data reduction and tomographic reconstruction techniques are also addressed. We report also the first measurement of the excitation temperature of the H 2 [3c] level in the center of the plasma column, Texc= 0.67 ± 0.11 eV. Graphic Abstract: [Figure not available: see fulltext.]

Barni, R., Alex, P., Ghorbanpour, E., Riccardi, C. (2021). A spectroscopical study of H 2 emission in a simply magnetized toroidal plasma. THE EUROPEAN PHYSICAL JOURNAL. D, ATOMIC, MOLECULAR AND OPTICAL PHYSICS, 75(3) [10.1140/epjd/s10053-021-00109-4].

A spectroscopical study of H 2 emission in a simply magnetized toroidal plasma

Barni R.
Primo
;
Alex P.
Secondo
;
Riccardi C.
Ultimo
2021

Abstract

Abstract: A noninvasive diagnostic technique relying on optical emission spectroscopy is used for studying plasma confined in a purely toroidal magnetic field. Visible emission lines of molecular hydrogen were specifically targeted. Bi-dimensional structures and poloidal plasma profiles were reconstructed from the emissivity distribution of hydrogen Fulcher system using a tomographic method. A few details concerning the methods employed to capture different emission viewlines, data reduction and tomographic reconstruction techniques are also addressed. We report also the first measurement of the excitation temperature of the H 2 [3c] level in the center of the plasma column, Texc= 0.67 ± 0.11 eV. Graphic Abstract: [Figure not available: see fulltext.]
Articolo in rivista - Articolo scientifico
plasma, emission spectroscopy, diagnostics
English
16-mar-2021
2021
75
3
101
open
Barni, R., Alex, P., Ghorbanpour, E., Riccardi, C. (2021). A spectroscopical study of H 2 emission in a simply magnetized toroidal plasma. THE EUROPEAN PHYSICAL JOURNAL. D, ATOMIC, MOLECULAR AND OPTICAL PHYSICS, 75(3) [10.1140/epjd/s10053-021-00109-4].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/308822
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