Indian Journal of Cryogenics

Magnet System Division of IPR is working on the development of high-temperature superconducting (HTS) magnets, test facilities, and associated technologies for plasma experiments. Under this initiative, the development of a cryostat with a room-temperature bore of ~50 mm for an HTS solenoid magnet capable of producing >0.2 T at 64 K has been carried out. The integrated system consists of an outer vacuum chamber, inner cryogenic chamber, HTS solenoid magnet, and top flanges with cryogenics, electrical, and instrumentation service ports, required for its operation has been validated up to 55 K by sub-cooling of LN₂. Integrated RTBC setup is demonstrated for the steady state operation of the HTS magnet up to ~ 3 Hrs. The design, development, manufacturing, assembly, integration, and validation tests of this integrated system of RTBC will be discussed in this paper.