Design of a Cryocooler-Cooled Large Bore Superconducting Magnet for a 30 T Hybrid Magnet

Thermal properties of a large-bore cryocooled 10T superconducting magnet for a hybrid magnet

“…The superconducting magnet was designed to generate the magnetic field of 10 T in the 360 mm room temperature bore at the operating current of 246 A for Nb 3 Sn coils and 350 A for NbTi coils, respectively. Details of the coil design have been described in reference [3]. The hybrid magnet is shown in Fig.…”

“…Moreover, cryocooled superconducting magnets were very useful for the magneto-science such as the magnetic levitation, since the cryocooled superconducting magnets can provide the continual stable high magnetic fields. Therefore, the hybrid magnet composed of the inner water-cooled Bitter resistive magnet and the outer cryocooled superconducting magnet has been developed in order to obtain the high magnetic field for the magneto-science [3,4]. Although the superconducting magnet with a 360 mm room temperature bore was designed to generate the magnetic field of 10 T in the coil center, the superconducting magnet was restricted to excite to the magnetic field of 8.5 T in the hybrid magnet operation.…”

Development of large bore superconducting magnet for wastewater treatment application

“…Since the first successful conduction-cooled superconducting magnet demonstrated by K. Watanabe in 1992 [6], the superconducting magnet technology has experienced great advance and has been commercially available. The cryogen-free superconducting magnet system is almost developed toward the high magnetic field generation [7,8]. The superconducting magnet is the core of the superconducting magnetic separation water treatment system.…”