Edge exposure of poloidal divertor target plate tiles

Journal Article · Sun Dec 01 00:00:00 EST 1996 · Fusion Technology

OSTI ID:426230

Mohanti, R B ^[1]; Gilligan, J G; Bourham, M A ^[2]

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1. AEA Technology, Abingdon (United Kingdom)
2. North Carolina State Univ., Raleigh, NC (United States)

Exposure to near normal surfaces of poloidal divertor target plate tiles is a limiting feature of the power handling capability of the tiles. The problems associated with the design of poloidal divertor tiles, with beryllium chosen as the tile material, and possible methods of solving the problem are discussed. Thermal two- and three-dimensional analyses are carried out for the assessment of relative merits in performance due to modifications to the surface. The power handling capability (time to reach melting temperature of beryllium) of the target plate tiles is presented for unswept and swept plasma cases. Results have shown that sweeping the plasma improves the power handling capability by a factor of up to 10. 20 refs., 7 figs., 3 tabs.

• OSTI ID: 426230
• Journal Information: Fusion Technology, Vol. 30, Issue 3 pt 1; Other Information: PBD: Dec 1996
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION
POLOIDAL FIELD DIVERTORS
DESIGN
BERYLLIUM
NUMERICAL DATA
PLASMA IMPURITIES
THERMAL ANALYSIS
TWO-DIMENSIONAL CALCULATIONS
THREE-DIMENSIONAL CALCULATIONS
PERFORMANCE
POWER DENSITY
FLUX DENSITY
ITER TOKAMAK
NUMERICAL ANALYSIS