SUPERCONDUCTING MAGNET AND MAGNETIC RESONANCE IMAGING APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide an MRI apparatus using a superconducting coil capable of maintaining a temperature of superconducting state while suppressing the power consumption of a refrigerator by cooling the superconducting coil to a temperature required for a superconducting state with heat removal means using a refrigerator comprising a heat transfer cooling member without using a liquid refrigerant and reducing the heat resistance of the contact face between the heat transfer cooling member and the superconducting coil.SOLUTION: The present invention relates to a superconducting magnet including a superconducting coil which uses a superconducting material for magnetic poles generating a static magnetic field and an MRI apparatus, the superconducting coil being annularly constructed of a good thermal conductive material such as a metal and installed contacting a heat transfer cooling member 11b which has a heat transfer path between a heat removal apparatus such as a refrigerator and the superconducting coil. The heat transfer cooling member 11b has a lattice-like slits 15 in a circumferential direction of the annular ring to allow for superior heat transfer in both circumferential and radial directions. In addition, the superconducting coil and the heat transfer cooling member 11b are integrally formed by resin hardening or adhesion.SELECTED DRAWING: Figure 1