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Title: Segmented saddle-shaped passive stabilization conductors for toroidal plasmas

Abstract

A large toroidal vacuum chamber for plasma generation and confinement is lined with a toroidal blanket for shielding using modules segmented in the toroidal direction. To provide passive stabilization in the same manner as a conductive vacuum chamber wall, saddle-shaped conductor loops are provided on blanket modules centered on a midplane of the toroidal chamber with horizontal conductive bars above and below the midplane, and vertical conductive legs on opposite sides of each module to provide return current paths between the upper and lower horizontal conductive bars. The close proximity of the vertical legs provided on adjacent modules without making physical contact cancel the electromagnetic field of adjacent vertical legs. The conductive bars spaced equally above and below the midplane simulate toroidal conductive loops or hoops that are continuous, for vertical stabilization of the plasma even though they are actually segmented.

Inventors:
 [1]
  1. Encinitas, CA
Issue Date:
Research Org.:
GA Technologies Inc
OSTI Identifier:
867361
Patent Number(s):
4921661
Application Number:
07/431,365
Assignee:
United States of America as represented by United States (Washington, DC)
DOE Contract Number:  
AA03-84SF00100
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
segmented; saddle-shaped; passive; stabilization; conductors; toroidal; plasmas; vacuum; chamber; plasma; generation; confinement; lined; blanket; shielding; modules; direction; provide; manner; conductive; wall; conductor; loops; provided; centered; midplane; horizontal; bars; below; vertical; legs; opposite; module; return; current; paths; upper; close; proximity; adjacent; physical; contact; cancel; electromagnetic; field; spaced; equally; simulate; hoops; continuous; toroidal direction; current paths; electromagnetic field; close proximity; toroidal plasma; vacuum chamber; magnetic field; chamber wall; physical contact; toroidal chamber; adjacent modules; conductive bars; toroidal plasmas; current path; vertical conductive; plasma generation; adjacent module; conductive legs; /376/

Citation Formats

Leuer, James A. Segmented saddle-shaped passive stabilization conductors for toroidal plasmas. United States: N. p., 1990. Web.
Leuer, James A. Segmented saddle-shaped passive stabilization conductors for toroidal plasmas. United States.
Leuer, James A. Tue . "Segmented saddle-shaped passive stabilization conductors for toroidal plasmas". United States. https://www.osti.gov/servlets/purl/867361.
@article{osti_867361,
title = {Segmented saddle-shaped passive stabilization conductors for toroidal plasmas},
author = {Leuer, James A},
abstractNote = {A large toroidal vacuum chamber for plasma generation and confinement is lined with a toroidal blanket for shielding using modules segmented in the toroidal direction. To provide passive stabilization in the same manner as a conductive vacuum chamber wall, saddle-shaped conductor loops are provided on blanket modules centered on a midplane of the toroidal chamber with horizontal conductive bars above and below the midplane, and vertical conductive legs on opposite sides of each module to provide return current paths between the upper and lower horizontal conductive bars. The close proximity of the vertical legs provided on adjacent modules without making physical contact cancel the electromagnetic field of adjacent vertical legs. The conductive bars spaced equally above and below the midplane simulate toroidal conductive loops or hoops that are continuous, for vertical stabilization of the plasma even though they are actually segmented.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1990},
month = {5}
}

Patent:

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