40-T CLASS HYBRID MAGNET SYSTEM

Construction of a 40 T class hybrid magnet system is in progress at th e NRIM. A superconducting magnet is designed to generate central magne tic fields up to 15 T at room-temperature clear bore of 400 mm, in whi ch a polyhelix-type water-cooled resistive magnet is energized. Two ki nds of resistive magnets with clear bores of 30 and 50 mm are being fa bricated to generate total magnetic fields up to 40 and 35 T, respecti vely. We also constructing a 15 MW DC power supply, a 15 MW water-cool ing system, and a 150 1/h helium liquefier for the hybrid magnet syste m.