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Title: Linear Transformation of Electromagnetic Wave Beams of the Electron-Cyclotron Range in Toroidal Magnetic Configurations

Abstract

The field structure of quasi-optical wave beams tunneled through the evanescence region in the vicinity of the plasma cutoff in a nonuniform magnetoactive plasma is analyzed. This problem is traditionally associated with the process of linear transformation of ordinary and extraordinary waves. An approximate analytical solution is constructed for a rather general magnetic configuration applicable to spherical tokamaks, optimized stellarators, and other magnetic confinement systems with a constant plasma density on magnetic surfaces. A general technique for calculating the transformation coefficient of a finite-aperture wave beam is proposed, and the physical conditions required for the most efficient transformation are analyzed.

Authors:
; ;  [1]
  1. Russian Academy of Sciences, Institute of Applied Physics (Russian Federation)
Publication Date:
OSTI Identifier:
22763274
Resource Type:
Journal Article
Journal Name:
Plasma Physics Reports
Additional Journal Information:
Journal Volume: 44; Journal Issue: 5; Other Information: Copyright (c) 2018 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1063-780X
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ANALYTICAL SOLUTION; CYCLOTRONS; ELECTROMAGNETIC RADIATION; MAGNETIC CONFINEMENT; MAGNETIC SURFACES; PLASMA DENSITY; SPHERICAL CONFIGURATION; STELLARATORS; TOKAMAK DEVICES

Citation Formats

Khusainov, T. A., E-mail: hta@appl.sci-nnov.ru, Shalashov, A. G., and Gospodchikov, E. D. Linear Transformation of Electromagnetic Wave Beams of the Electron-Cyclotron Range in Toroidal Magnetic Configurations. United States: N. p., 2018. Web. doi:10.1134/S1063780X18050070.
Khusainov, T. A., E-mail: hta@appl.sci-nnov.ru, Shalashov, A. G., & Gospodchikov, E. D. Linear Transformation of Electromagnetic Wave Beams of the Electron-Cyclotron Range in Toroidal Magnetic Configurations. United States. doi:10.1134/S1063780X18050070.
Khusainov, T. A., E-mail: hta@appl.sci-nnov.ru, Shalashov, A. G., and Gospodchikov, E. D. Tue . "Linear Transformation of Electromagnetic Wave Beams of the Electron-Cyclotron Range in Toroidal Magnetic Configurations". United States. doi:10.1134/S1063780X18050070.
@article{osti_22763274,
title = {Linear Transformation of Electromagnetic Wave Beams of the Electron-Cyclotron Range in Toroidal Magnetic Configurations},
author = {Khusainov, T. A., E-mail: hta@appl.sci-nnov.ru and Shalashov, A. G. and Gospodchikov, E. D.},
abstractNote = {The field structure of quasi-optical wave beams tunneled through the evanescence region in the vicinity of the plasma cutoff in a nonuniform magnetoactive plasma is analyzed. This problem is traditionally associated with the process of linear transformation of ordinary and extraordinary waves. An approximate analytical solution is constructed for a rather general magnetic configuration applicable to spherical tokamaks, optimized stellarators, and other magnetic confinement systems with a constant plasma density on magnetic surfaces. A general technique for calculating the transformation coefficient of a finite-aperture wave beam is proposed, and the physical conditions required for the most efficient transformation are analyzed.},
doi = {10.1134/S1063780X18050070},
journal = {Plasma Physics Reports},
issn = {1063-780X},
number = 5,
volume = 44,
place = {United States},
year = {2018},
month = {5}
}