Design improvements simplify remote maintenance of tokamaks

Conference · Sun Jan 01 04:00:00 EST 1978

OSTI ID:6380865

Spampinato, P T; Sardella, C; Shannon, T E

The tokamak, by the nature of its plasma confinement concept, is a difficult device to maintain, and maintainability problems are compounded by the need to perform all operations remotely. This paper discusses the modifications to the Oak Ridge baseline TNS which led to significant improvements in device maintainability. They are: (1) a reduction in the number of toroidal field coils used and an increase in coil size, (2) a rearrangement of poloidal field coils to preclude the need for coil dismantling during a torus sector replacement, (3) use of a secondary vacuum enclosure. Various types of secondary enclosures are discussed, and the rationale for selecting a vacuum building approach is given.

• Research Organization: Grumman Aerospace Corp., Bethpage, NY (USA); Oak Ridge National Lab., TN (USA)
• DOE Contract Number: W-7405-ENG-26
• OSTI ID: 6380865
• Report Number(s): CONF-781105-86
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700209* -- Fusion Power Plant Technology-- Component Development & Materials Testing
BUILDINGS
ELECTRIC COILS
ELECTRICAL EQUIPMENT
EQUIPMENT
MAGNET COILS
MAINTENANCE
REMOTE HANDLING
SIZE
THERMONUCLEAR REACTORS
TNS REACTORS
TOKAMAK TYPE REACTORS
VACUUM SYSTEMS