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Title: High beta plasma operation in a toroidal plasma producing device

Abstract

A high beta plasma is produced in a plasma producing device of toroidal configuration by ohmic heating and auxiliary heating. The plasma pressure is continuously monitored and used in a control system to program the current in the poloidal field windings. Throughout the heating process, magnetic flux is conserved inside the plasma and the distortion of the flux surfaces drives a current in the plasma. As a consequence, the total current increases and the poloidal field windings are driven with an equal and opposing increasing current. The spatial distribution of the current in the poloidal field windings is determined by the plasma pressure. Plasma equilibrium is maintained thereby, and high temperature, high beta operation results.

Inventors:
 [1]
  1. Oak Ridge, TN
Issue Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
OSTI Identifier:
863184
Patent Number(s):
4115190
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
H - ELECTRICITY H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR H05H - PLASMA TECHNIQUE
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
beta; plasma; operation; toroidal; producing; device; produced; configuration; ohmic; heating; auxiliary; pressure; continuously; monitored; control; current; poloidal; field; windings; throughout; process; magnetic; flux; conserved; inside; distortion; surfaces; drives; consequence; total; increases; driven; equal; opposing; increasing; spatial; distribution; determined; equilibrium; maintained; temperature; results; toroidal plasma; magnetic flux; poloidal field; plasma producing; auxiliary heat; producing device; total current; field windings; flux surface; heating process; plasma pressure; operation result; ohmic heating; continuously monitored; toroidal configuration; beta plasma; continuously monitor; /376/

Citation Formats

Clarke, John F. High beta plasma operation in a toroidal plasma producing device. United States: N. p., 1978. Web.
Clarke, John F. High beta plasma operation in a toroidal plasma producing device. United States.
Clarke, John F. Sun . "High beta plasma operation in a toroidal plasma producing device". United States. https://www.osti.gov/servlets/purl/863184.
@article{osti_863184,
title = {High beta plasma operation in a toroidal plasma producing device},
author = {Clarke, John F},
abstractNote = {A high beta plasma is produced in a plasma producing device of toroidal configuration by ohmic heating and auxiliary heating. The plasma pressure is continuously monitored and used in a control system to program the current in the poloidal field windings. Throughout the heating process, magnetic flux is conserved inside the plasma and the distortion of the flux surfaces drives a current in the plasma. As a consequence, the total current increases and the poloidal field windings are driven with an equal and opposing increasing current. The spatial distribution of the current in the poloidal field windings is determined by the plasma pressure. Plasma equilibrium is maintained thereby, and high temperature, high beta operation results.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1978},
month = {1}
}

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