Effect of the Self-pumped Limiter Concept on the Tritium Fuel Cycle

EFFECT OF THE SELF-PUMPED LIMITER CONCEPT ON THE TRITIUM FUEL CYCLE P. A. Finn, D. K. Sze and A. Hassanein Argonne National Laboratory Argonne, I I 60439 ABSTRACT The self-pumped limiter concept for impurity control of the plasma of a fusion reactor has a major impact on the design of the tritium systems. To achieve a sustained burn, conventional limiters and divertors remove large quantities of unburnt tritium and deuterium from the plasma which must be then recycled using a plasma processing system. The self-pumped limiter which does not remove the hydrogen species, does not require any plasma processing equipment. The blanket system and the coolant processing systems acquire greater importance with the use of this unconventional impurity control system.