Design, fabrication, and initial operation of the interchangeable module stellarator

Thesis/Dissertation · Sun Jan 01 04:00:00 EST 1984

OSTI ID:5642042

Anderson, D T

A modular stellarator has been designed, fabricated, and operated based upon twisted coils derived from the ultimate stellarator concept. The device, the Interchangeable Module Stellarator (IMS), was desgined to provide a close approximation to the gross macroscopic magnetic parameters of the continuous-helix Proto-Cleo Stellarator; l = 3, seven field periods, a major radius of forty centimeters, plasma volume of eleven liters, and a parabolic rotational transform profile with no transform on axis and t = .6 at the plasma edge. The efficiency of the modular coils allows over a doubling of attainable magnetic field strength as compared to Proto-Cleo utilizing the same power supply. The conceptual design is discussed, and the engineering design and fabrication techniques are presented. The initial operation of IMS has shown that the desired magnetic topology has been achieved. Preliminary results obtained through introduction of plasma by electron cyclotron resonant breakdown of a hydrogen gas background indicate confinement similar to that previously obtained in the Proto-Cleo Stellarator. The predicted modular bundle divertors in IMS have been confirmed experimentally with the ECR-produced plasmas.

• Research Organization: Wisconsin Univ., Madison (USA)
• OSTI ID: 5642042
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700101* -- Fusion Energy-- Plasma Research-- Confinement
Heating
& Production
CLOSED PLASMA DEVICES
DESIGN
ECR HEATING
HEATING
HIGH-FREQUENCY HEATING
MODULAR STRUCTURES
OPERATION
PERFORMANCE
PLASMA HEATING
STELLARATORS
THERMONUCLEAR DEVICES