Progress in Large Superconducting Pulsed Conductors and Coils for the Fusion Experimental Reactor

This paper gives an overview of superconducting poloidal coil development for the Fusion Experimental Reactor (FER) in Japan. This work was started from conductor development in January 1980 by the Japan Atomic Energy Research Institute (JAERI) and the first stage has been finished by March 1983. Through this work, five high-current pulsed conductors and five pulsed coils have been developed, achieving the levels of 50-kA pool-cooled pulsed conductors, a 30-kA forced-cooled pulsed conductor, and 10-kA pulsed coils. This paper describes technical goals of the development, major steps of the program, management of the task, technical features of developed conductors, test results of coils, and key achievements of the whole task.