Thermal sweeping analysis for divertor plate materials

Conference · Sat Sep 01 04:00:00 EDT 1990

OSTI ID:6205196

Hassanein, A

Magnetically sweeping the separatrix along the divertor plate is proposed to accommodate higher heat loads or to reduce the maximum armor/coatings surface temperature for a given heat flux distribution. During the sweeping, each position on the divertor plate will experience periodic heat and particle flux variations. The magnitude of these variations with time will depend on the location as well as on the time shape of the sweeping wave. Consequently, the shape of the sweeping pulse and the sweeping frequency will determine the maximum surface temperature was well as the spatial distribution of the temperature along the sweeping distance. Sweeping is also expected to increase the lifetime due to reduction in both physical sputtering and chemical and radiation enhanced erosion for materials such as graphite or carbon composites. 4 refs., 7 figs.

• Research Organization: Argonne National Lab., IL (USA)
• Sponsoring Organization: DOE/ER
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 6205196
• Report Number(s): ANL/CP-71555; CONF-901007--46; ON: DE91006456
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700202* -- Fusion Power Plant Technology-- Magnet Coils & Fields
700209 -- Fusion Power Plant Technology-- Component Development & Materials Testing
CARBON
CLOSED PLASMA DEVICES
DIVERTORS
ELEMENTAL MINERALS
ELEMENTS
EROSION
GRAPHITE
HEAT FLUX
ITER TOKAMAK
MATERIALS
MINERALS
NONMETALS
SPUTTERING
TEMPERATURE EFFECTS
THERMAL ANALYSIS
THERMONUCLEAR DEVICES
THERMONUCLEAR REACTOR MATERIALS
TOKAMAK DEVICES