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Title: Vertically stabilized elongated cross-section tokamak

Abstract

This invention provides a vertically stabilized, non-circular (minor) cross-section, toroidal plasma column characterized by an external separatrix. To this end, a specific poloidal coil means is added outside a toroidal plasma column containing an endless plasma current in a tokamak to produce a rectangular cross-section plasma column along the equilibrium axis of the plasma column. By elongating the spacing between the poloidal coil means the plasma cross-section is vertically elongated, while maintaining vertical stability, efficiently to increase the poloidal flux in linear proportion to the plasma cross-section height to achieve a much greater plasma volume than could be achieved with the heretofore known round cross-section plasma columns. Also, vertical stability is enhanced over an elliptical cross-section plasma column, and poloidal magnetic divertors are achieved.

Inventors:
 [1]
  1. Hopewell, NJ
Issue Date:
Research Org.:
Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
OSTI Identifier:
862980
Patent Number(s):
4065350
Assignee:
United States Government as represented by Department of Energy (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
G - PHYSICS G21 - NUCLEAR PHYSICS G21B - FUSION REACTORS
DOE Contract Number:  
AT(11-1)-3073
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
vertically; stabilized; elongated; cross-section; tokamak; provides; non-circular; minor; toroidal; plasma; column; characterized; external; separatrix; specific; poloidal; coil; means; added; outside; containing; endless; current; produce; rectangular; equilibrium; axis; elongating; spacing; maintaining; vertical; stability; efficiently; increase; flux; linear; proportion; height; achieve; volume; achieved; heretofore; columns; enhanced; elliptical; magnetic; divertors; rectangular cross-section; poloidal flux; plasma current; plasma column; toroidal plasma; column containing; poloidal magnetic; plasma volume; vertical stability; coil means; vertically stabilized; poloidal coil; /376/

Citation Formats

Sheffield, George V. Vertically stabilized elongated cross-section tokamak. United States: N. p., 1977. Web.
Sheffield, George V. Vertically stabilized elongated cross-section tokamak. United States.
Sheffield, George V. Sat . "Vertically stabilized elongated cross-section tokamak". United States. https://www.osti.gov/servlets/purl/862980.
@article{osti_862980,
title = {Vertically stabilized elongated cross-section tokamak},
author = {Sheffield, George V},
abstractNote = {This invention provides a vertically stabilized, non-circular (minor) cross-section, toroidal plasma column characterized by an external separatrix. To this end, a specific poloidal coil means is added outside a toroidal plasma column containing an endless plasma current in a tokamak to produce a rectangular cross-section plasma column along the equilibrium axis of the plasma column. By elongating the spacing between the poloidal coil means the plasma cross-section is vertically elongated, while maintaining vertical stability, efficiently to increase the poloidal flux in linear proportion to the plasma cross-section height to achieve a much greater plasma volume than could be achieved with the heretofore known round cross-section plasma columns. Also, vertical stability is enhanced over an elliptical cross-section plasma column, and poloidal magnetic divertors are achieved.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1977},
month = {1}
}

Patent:

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