Magnet structure and method of operation

Details Magnet structure and method of operation Magnet structure and method of operation

1995-07-26

1997-10-07

Gellner, Michael L.

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

Magnet structure or material

336229, 376133, 376142, H01K 500

Patent

active

056753047

ABSTRACT:
A novel method and apparatus are described for modifying the field within the toroidal chamber of a stellarator or a tokamak. At least one additional electrical conductor is arranged around the straight axis of the toroidal chamber and has a sawtooth or zigzag shape with the number of teeth being the same as the number of toroidal field coils or a factor thereof. The conductor is shaped so that one edge of each tooth is substantially parallel to a portion of one of the toroidal field coils while the other edge of the tooth extends from the upper portion of one coil to a lower portion of the toroidal field coil associated with another tooth. The conductor is adapted to carry a current that is approximately the same as that in the toroidal field coil but in the opposite direction. As a result of this arrangement, magnetic effects can be achieved within the toroidal chamber that are approximately the same as would be created by a helical current flow around the toroidal chamber as in a torsatron or by a twisted toroidal field coil.

REFERENCES:
patent: 4920095 (1990-04-01), Ishigaki et al.

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