KSTAR magnet structure design

The Korea Superconducting Tokamak Advanced Research(KSTAR) device is a stea dy-state-capable experimental fusion device with a fully superconducting ma gnet system, including Toroidal Field (TF) coils, Central Solenoid (CS) coi ls, and Poloidal Field (PF) coils. The major design consideration of the ma gnet system is to meet the KSTAR mission with plasma current of 2 MA and to roidal field of 3.5 T at the major radius 1.8 m and z=0. The preliminary analyses show that the magnet structure design has mechanic al, electrical, and thermal stability during operation. The TF magnets have a wedged structure, including coil cases, inter-coil structures, and inter -octant joints, The CS and PF structures are designed to support the electr omagnetic forces. To support the coil system against gravity and lateral lo ads, gravity support and lateral load structures are designed.