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Title: Thermomagnetic burn control for magnetic fusion reactor

Abstract

Apparatus is provided for controlling the plasma energy production rate of a magnetic-confinement fusion reactor, by controlling the magnetic field ripple. The apparatus includes a group of shield sectors (30a, 30b, etc.) formed of ferromagnetic material which has a temperature-dependent saturation magnetization, with each shield lying between the plasma (12) and a toroidal field coil (18). A mechanism (60) for controlling the temperature of the magnetic shields, as by controlling the flow of cooling water therethrough, thereby controls the saturation magnetization of the shields and therefore the amount of ripple in the magnetic field that confines the plasma, to thereby control the amount of heat loss from the plasma. This heat loss in turn determines the plasma state and thus the rate of energy production.

Inventors:
 [1];  [2]
  1. (Del Mar, CA)
  2. (Solana Beach, CA)
Issue Date:
Research Org.:
GA TECHNOLOGIES INC
OSTI Identifier:
864338
Patent Number(s):
4349506
Assignee:
United States of America as represented by United States (Washington, DC) OSTI
DOE Contract Number:  
AT03-76ET51011
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
thermomagnetic; burn; control; magnetic; fusion; reactor; apparatus; provided; controlling; plasma; energy; production; rate; magnetic-confinement; field; ripple; shield; sectors; 30a; 30b; etc; formed; ferromagnetic; material; temperature-dependent; saturation; magnetization; lying; 12; toroidal; coil; 18; mechanism; 60; temperature; shields; flow; cooling; water; therethrough; controls; amount; confines; heat; loss; determines; reactor apparatus; production rate; confinement fusion; heat loss; cooling water; magnetic field; fusion reactor; toroidal field; magnetic material; field coil; ferromagnetic material; energy production; plasma energy; energy product; field ripple; magnetic shield; magnetic fusion; /376/

Citation Formats

Rawls, John M., and Peuron, Unto A. Thermomagnetic burn control for magnetic fusion reactor. United States: N. p., 1982. Web.
Rawls, John M., & Peuron, Unto A. Thermomagnetic burn control for magnetic fusion reactor. United States.
Rawls, John M., and Peuron, Unto A. Fri . "Thermomagnetic burn control for magnetic fusion reactor". United States. https://www.osti.gov/servlets/purl/864338.
@article{osti_864338,
title = {Thermomagnetic burn control for magnetic fusion reactor},
author = {Rawls, John M. and Peuron, Unto A.},
abstractNote = {Apparatus is provided for controlling the plasma energy production rate of a magnetic-confinement fusion reactor, by controlling the magnetic field ripple. The apparatus includes a group of shield sectors (30a, 30b, etc.) formed of ferromagnetic material which has a temperature-dependent saturation magnetization, with each shield lying between the plasma (12) and a toroidal field coil (18). A mechanism (60) for controlling the temperature of the magnetic shields, as by controlling the flow of cooling water therethrough, thereby controls the saturation magnetization of the shields and therefore the amount of ripple in the magnetic field that confines the plasma, to thereby control the amount of heat loss from the plasma. This heat loss in turn determines the plasma state and thus the rate of energy production.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1982},
month = {1}
}

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