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Title: Crossed-field divertor for a plasma device

Abstract

A divertor for removal of unwanted materials from the interior of a magnetic plasma confinement device includes the division of the wall of the device into segments insulated from each other in order to apply an electric field having a component perpendicular to the confining magnetic field. The resulting crossed-field drift causes electrically charged particles to be removed from the outer part of the confinement chamber to a pumping chamber. This method moves the particles quickly past the saddle point in the poloidal magnetic field where they would otherwise tend to stall, and provides external control over the rate of removal by controlling the magnitude of the electric field.

Inventors:
 [1];  [1]
  1. (Madison, WI)
Issue Date:
Research Org.:
Wisconsin Univ., Madison (USA)
OSTI Identifier:
863806
Patent Number(s):
4252609
Assignee:
United States of America as represented by United States (Washington, DC) OSTI
DOE Contract Number:  
EY-76-S-02-2387
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
crossed-field; divertor; plasma; device; removal; unwanted; materials; interior; magnetic; confinement; division; wall; segments; insulated; apply; electric; field; component; perpendicular; confining; resulting; drift; causes; electrically; charged; particles; removed; outer; chamber; pumping; method; moves; quickly; past; saddle; poloidal; otherwise; tend; stall; provides; external; control; rate; controlling; magnitude; confining magnetic; confinement chamber; charged particles; electric field; magnetic field; charged particle; plasma confinement; electrically charged; poloidal magnetic; plasma device; pumping chamber; external control; confinement device; magnetic plasma; /376/

Citation Formats

Kerst, Donald W., and Strait, Edward J. Crossed-field divertor for a plasma device. United States: N. p., 1981. Web.
Kerst, Donald W., & Strait, Edward J. Crossed-field divertor for a plasma device. United States.
Kerst, Donald W., and Strait, Edward J. Thu . "Crossed-field divertor for a plasma device". United States. https://www.osti.gov/servlets/purl/863806.
@article{osti_863806,
title = {Crossed-field divertor for a plasma device},
author = {Kerst, Donald W. and Strait, Edward J.},
abstractNote = {A divertor for removal of unwanted materials from the interior of a magnetic plasma confinement device includes the division of the wall of the device into segments insulated from each other in order to apply an electric field having a component perpendicular to the confining magnetic field. The resulting crossed-field drift causes electrically charged particles to be removed from the outer part of the confinement chamber to a pumping chamber. This method moves the particles quickly past the saddle point in the poloidal magnetic field where they would otherwise tend to stall, and provides external control over the rate of removal by controlling the magnitude of the electric field.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1981},
month = {1}
}

Patent:

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