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Dust Divertor for a Tokamak Fusion Reactor

Dust Divertor for a Tokamak Fusion Reactor,10.1007/s10894-010-9295-x,Journal of Fusion Energy,X. Z. Tang,G. L. Delzanno

Dust Divertor for a Tokamak Fusion Reactor  
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Micron-size tungsten particulates find their equilibrium position in the magnetized plasma sheath in the normal direction of the divertor surface, but are convected poloidally and toroidally by the sonic ion flow drag parallel to the divertor surface. The natural circulation of the dust particles in the magnetized plasma sheath can be used to set up a flowing dust shield that absorbs and exhausts most of the tokamak heat flux to the divertor. The size of the particulates and the choice of materials offer substantial room for optimization.
Journal: Journal of Fusion Energy - J FUSION ENERG , vol. 29, no. 5, pp. 407-411, 2010
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