Crossed-field divertor for a plasma device

Patent · Thu Jan 01 00:00:00 EST 1981

OSTI ID:863806

Kerst, Donald W ^[1]; Strait, Edward J ^[1]

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1. Madison, WI

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.

• Research Organization: Univ. of Wisconsin, Madison, WI (United States)
• DOE Contract Number: EY-76-S-02-2387
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4252609
• OSTI ID: 863806
• Country of Publication: United States
• Language: English

Related Subjects

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
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