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POLARIZATION CHARACTERISTICS OF ELECTRODYNAMIC STARK EFFECT SPECTRA

A.V. Demura 1 *
A.V. Demura
* demura45@gmail.com
, 
D.S. Leontyev 1
D.S. Leontyev
, 
V.S. Lisitsa 1, 2, 3
V.S. Lisitsa
1 National Research Centre Kurchatov institute
2 National Research University MPTI
10.31857/S00444510240304e2
Published 2023-11-15
Article , Volume 165, Issue 3, 334-353
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Demura A., Leontyev D., Lisitsa V. POLARIZATION CHARACTERISTICS OF ELECTRODYNAMIC STARK EFFECT SPECTRA // Journal of Experimental and Theoretical Physics. 2023. Vol. 165. No. 3. pp. 334-353.
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Demura A., Leontyev D., Lisitsa V. POLARIZATION CHARACTERISTICS OF ELECTRODYNAMIC STARK EFFECT SPECTRA // Journal of Experimental and Theoretical Physics. 2023. Vol. 165. No. 3. pp. 334-353.
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TY - JOUR
DO - 10.31857/S00444510240304e2
UR - https://jetp.colab.ws/publications/10.31857/S00444510240304e2
TI - POLARIZATION CHARACTERISTICS OF ELECTRODYNAMIC STARK EFFECT SPECTRA
T2 - Journal of Experimental and Theoretical Physics
AU - Demura, A.V.
AU - Leontyev, D.S.
AU - Lisitsa, V.S.
PY - 2023
DA - 2023/11/15
PB - Nauka Publishers
SP - 334-353
IS - 3
VL - 165
ER -
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@article{2023_Demura,
author = {A.V. Demura and D.S. Leontyev and V.S. Lisitsa},
title = {POLARIZATION CHARACTERISTICS OF ELECTRODYNAMIC STARK EFFECT SPECTRA},
journal = {Journal of Experimental and Theoretical Physics},
year = {2023},
volume = {165},
publisher = {Nauka Publishers},
month = {Nov},
url = {https://jetp.colab.ws/publications/10.31857/S00444510240304e2},
number = {3},
pages = {334--353},
doi = {10.31857/S00444510240304e2}
}
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Demura, A.V., et al. “POLARIZATION CHARACTERISTICS OF ELECTRODYNAMIC STARK EFFECT SPECTRA.” Journal of Experimental and Theoretical Physics, vol. 165, no. 3, Nov. 2023, pp. 334-353. https://jetp.colab.ws/publications/10.31857/S00444510240304e2.
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Keywords

Balmer alpha line
Motional Stark Effect
parabolic wave functions
polarization characteristics of H-atom spectra
tokamak plasma

Abstract

The detailed study of physical processes responsible for the hydrogen atom spectra under its motion transverse to the strong magnetic field – due to electrodynamic Stark effect, known also as MSE (Motional Stark Effect) – is performed. The formation mechanisms of excited hydrogen levels population due to collisions with protons of plasma are investigated. The experimental and theoretical data on the total and partial excitation cross sections along with parabolic quantum numbers in the laboratory frame of moving atom are confronted. The universal approach for the calculations of cross sections in the basis of the parabolic wave functions with an account of their adiabatic suppression in the low energy range of collisions and selective in terms of the parabolic quantum numbers is proposed. The method developed is applied for the construction of the collisional-radiative kinetic model for the partial populations of the excited Stark sublevels calculations taking into account the ionization due to collisions with protons. The sources of the thermodynamically nonequilibrium origin of the Stark sublevel populations in the electrodynamic Stark effect are revealed in the wide diapason of the plasma density variation. The intensities of π- and σ Stark components of Hα line versus beam energy, magnetic field and plasma density are calculated. The polarization characteristics of MSE spectra of Hα line are calculated in the magnetically confined thermonuclear plasma. The obtained results are in the reasonable agreement with the literature data. The developed method is of interest as from the general physical point of view, as for the MSE-spectroscopy of tokamaks and in the other experimental conditions.

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