A Collaborative National Center for Fusion & Plasma Research

“Self Cooled Recirculating Liquid Metal Plasma Facing Wall System” Inventor ..--.. Richard P. Majeski

Disclosed is a design for a fully axisymmetric, fast flowing liquid lithium plasma facing “wall” or surface which, in its present form, is intended for implementation in a tokamak.  The design employs JxB forces to form a free-surface flow along a guide wall at the outer boundary of the plasma. The implementation of the disclosure design includes a system for recirculating the liquid metal within the volume of the toroidal field coils using inductive pumping, an approach wich allows independent energizing of the wall-forming and recirculating pumping systems, cooling of the recirculating liquid using fluid heat exchange with a molten salt, and accommodation for tokamak fueling, heating and current drive systems from the high field side of the torus. 


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