| 摘要 |
PURPOSE:To secure a magnetic field of basic performance by constituting an inner magnet to be used in a strong magnetic field of predetermined tesla or higher generated by a magnet of an oxide superconductor in a cryostat wherein a liquid He cooling type magnet is used outside while the magnet can be replaced with a new one. CONSTITUTION:An outer periphery of a superconducting coil 16 is coated by a coil-reinforcing layer 17 and inserted in an outer superconducting coil. Therefore by making a hole at the center of a disc 22 to permit sample holder 12 to be inserted, it is possible to integrate the oxide superconducting coil 16 and fix it while it can be freely mounted on an removed from a supporting material 21 under a cryostat 11 by a plurality of fixing screws 23. Thus the cryostat part and the magnetic part are structured to be independent of each other, and when the coil 16 is deteriorated, it can be freely replaced with a new one by the screws 23. Thus a sum of a strong magnetic field of 12 tesla or higher which is generated by the metal superconducting magnet provided outside and a magnetic field generated from the inner oxide superconducting magnetic is applied to a sample in the holder 12. |
