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Title: Characteristics of the three-half-turn-antenna-driven RF discharge in the Uragan-3M torsatron

In the ℓ = 3 Uragan-3M torsatron hydrogen plasma is produced by RF fields in the Alfvén range of frequencies (ω ≤ ω{sub ci}). The initial (target) plasma with the line-averaged density of units 10{sup 12} cm{sup −3} is produced by a frame antenna with a broad spectrum of generated parallel wavenumbers. After this, to heat the plasma and bring its density to ∼10{sup 13} cm{sup –3}, another, shorter wavelength three-half-turn antenna with large transverse currents is used. The behavior of the density, electron temperature, and loss of the plasma supported by the three-half-turn antenna is studied depending on the RF power fed to the antenna and initial values of the density and electron temperature supplied by the frame antenna.
Authors:
; ; ; ; ; ; ; ; ; ; ; ; ; ; ;  [1]
  1. National Science Center Kharkiv Institute of Physics and Technology, Institute of Plasma Physics (Ukraine)
Publication Date:
OSTI Identifier:
22472014
Resource Type:
Journal Article
Resource Relation:
Journal Name: Plasma Physics Reports; Journal Volume: 41; Journal Issue: 12; Other Information: Copyright (c) 2015 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ALFVEN WAVES; ANTENNAS; ELECTRIC CURRENTS; ELECTRON DENSITY; ELECTRON TEMPERATURE; HEAT; HYDROGEN; LOSSES; PLASMA; PLASMA DENSITY; URAGAN STELLARATOR