Development of actively cooled components for the Tore Supra toroidal pumplimiter

Actively cooled plasma facing components armoured with carbon fibre composi te hat tiles have been developed for Tore Supra Tokamak since 1994. After f abrication of prototypes successively tested in a high heat Bur test bed th e special bond between the carbon tiles and the hardened copper of the heat sink was particularly studied. Since 1997, 660 elements are in fabrication . The infrared acceptance test underlines the importance of the heat treatm ent during the manufacture and revealed some unexplained cracked tiles.