Superconducting magnet with tube-type cryostat for magnetically suspended train

In order to develop a compact and light-weight superconducting vehicle magnet for a magnetically suspended high speed train, a superconducting magnet with a tube-type cryostat has been constructed and tested. The shape of the superconducting coil is a rectangle, which has a length of 1.5 m and a width of 0.6 m, and coaxial vessels of the cryostat cover the coil winding. The liquid helium vessel and the outer vacuum vessel of the cryostat have an outside diameter of 8 cm and 14 cm, respectively. The experimental results and the evaluation for the magnet are described.