Design study of superconducting poloidal magnets for tokamak fusion power reactor

Design study of the superconducting poloidal magnets for a tokamak fusion power reactor has been carried out. The purpose is to clearify engineering problems in development of the superconducting poloidal magnets. Performed here were electrical design, stress analysis of electromagnetic forces, design of superconducting wires, calculation of heat generated in superconducting coils by pulsive current, design of the cryostat and its heat-leak calculation and design of refrigeration system. As the result, the need for further study was indicated in the following areas: supports of coils against electromagnetic forces, structure of low-eddy-current cryostat and circulation of liquid helium in superconducting coils. (auth.)