Test results of the toroidal model pancake for ITER/FER toroidal field coils

Development of a hollow cooling monolithic (TMC-FF) conductor has been carried out by Japan Atomic Energy Research Institute (JAERI) since 1988. Manufacture of the toroidal model pancake (TMP) made of the TMC-FF conductor was completed in August, 1991, after trial manufacturing and verification tests. Experiments on the TMP started in January, 1992, in the Demo Poloidal Coil (DPC) test facility. Results of cooldown, pressure drop, stability, and mechanical performance of the TMP are presented. >