Patent ID: 7961067
Filing Date: 2011-06-14
Classification: G01R

Abstract:
1. A superconducting magnet apparatus, comprising: a circular superconducting coil which generates a magnetic field; a coil vessel which contains the superconducting coil together with refrigerant; a thermal shield arranged so as to surround the coil vessel; a vacuum vessel with the inside thereof kept vacuum, the vacuum vessel surrounding the thermal shield; and a cylinder of magnetic material for correcting the magnetic field, the magnetic material being arranged in the vacuum vessel; wherein the cylinder of magnetic material is supported by a heat-insulation support medium having a length and width; wherein the cylinder of magnetic material is connected with the vacuum vessel through a thermal conducting lead; wherein the cylinder of magnetic material is arranged on the outside of the thermal shield; wherein the support medium extends through the thermal shield; wherein the support medium has one end fixed to the cylinder of magnetic material and the opposite end fixed to the coil vessel and the support medium extends in a direction perpendicular to a z-axis of the apparatus to suppress movement in a direction perpendicular to a loading direction of the cylinder of magnetic material; and wherein each end of the support medium includes a non-magnetic metal connection member.