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Title: Modular low aspect ratio-high beta torsatron

Patent ·
OSTI ID:864872

A fusion reactor device in which the toroidal magnetic field and at least a portion of the poloidal magnetic field are provided by a single set of modular coils. The coils are arranged on the surface of a low aspect ratio toroid in planes having the cylindrical coordinate relationship .phi.=.phi..sub.i +kz where k is a constant equal to each coil's pitch and .phi..sub.i is the toroidal angle at which the i'th coil intersects the z=o plane. The device may be described as a modular, high beta torsation whose screw symmetry is pointed along the systems major (z) axis. The toroid defined by the modular coils preferably has a racetrack minor cross section. When vertical field coils and preferably a toroidal plasma current are provided for magnetic field surface closure within the toroid, a vacuum magnetic field of racetrack shaped minor cross section with improved stability and beta valves is obtained.

Research Organization:
Princeton Univ., NJ (United States)
DOE Contract Number:
AC02-76CH03073
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Number(s):
US 4430600
Application Number:
06/364,276
OSTI ID:
864872
Country of Publication:
United States
Language:
English