POSSIBLE DIVERTOR SOLUTIONS FOR A FUSION-REACTOR .2. TECHNICAL ASPECTS OF A POSSIBLE DIVERTOR

Safe operation of a fusion reactor divertor requires the exhaust of he at fluxes ranging from 5 to 30 MW m(-2). The different technical solut ions which are proposed rely on various water cooled copper hear sink designs. The protective armour may be Tungsten, Beryllium or Carbon de pending on the plasma interaction. Optimisation is achieved by an over all comparison stressing the compliance to industrial defects. Reliabl e designs have been proposed and tested on large elements with carbon tiles for several thousand cycles, at power levels up to 10 MW m(-2). (C) 1997 Elsevier Science S.A.