Energization Result of JT-60SA Poloidal Field Coil

Abstract

Ten JT-60SA poloidal field （PF） coils contain four central solenoid coils and six equilibrium field coils. Of these, some PF coils were successfully energized up to 5 kA and some coils were energized up to 10 kA for an individual operation test. After the test, all 10 PF coils were simultaneously operated along the current pattern of plasma operation with a maximum current of 5 kA for an integrated operation test. After the completion of commissioning tests, plasma operation was initiated and no quench occurred during the entire operation period. JT-60SA generated the first tokamak plasma in October 2023, and the plasma current reached 1.2 MA. The energization results of the commissioning test and plasma operation are reported in this paper.