Superconducting magnet coils for thermonuclear research

Abstract

This paper reviews the present state of development of high-field superconductivity with particular regard to the prospective use of that phenomenon in magnet coils for thermonuclear research. It is concluded that although magnets for thermonuclear research are not yet practical, their development is advancing rapidly to the stage of feasibility for that purpose. Progress at present is dependent upon the achievement of a greater understanding of the basic and applied science of superconductivity and the development of materials less susceptible to a phenomenon known as "flux jumping." A review of the present state of scientific knowledge pertinent to large-magnet technology is provided.

The new technological solution for the JT-60SA quench protection circuits

“…The steady-state operation of magnetically confined fusion plasmas requires the adoption of superconducting (SC) magnets in order to provide the necessary intense magnetic fields without dissipating huge amount of energy. Gauster and Freeman [1] reviewed the SC magnet technology for thermonuclear fusion application in 1964. Since then, the SC technology has grown a lot, thanks to the R&D programs mainly connected to the realization of ITER [2].…”

Technology development and mass production of Nb3Sn conductors for ITER toroidal field coils in Japan

“…The application of superconductors in fusion research has a long history [1]. The superconducting magnet system in the International Thermonuclear Experimental Reactor (ITER) consists of 18 toroidal field (TF) coils, one set of central solenoid (CS) and six poloidal field (PF) coils [2].…”