SUPERCONDUCTIVE MAGNET DEVICE AND MAGNETIC RESONANCE IMAGING DEVICE USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide an MRI device with small magnetic field fluctuation in spite of room temperature fluctuation and vibration. SOLUTION: The superconductive magnet device for the MRI device is characterized in that a magnetic material for correcting the magnetic field is arranged in a heat shield system of the superconductive magnet device. Further, the device is also characterized in that the magnetic material for correcting the magnetic field is arranged in a location where the room temperature fluctuation is not conducted present in a vacuum container. The MRI device having the small magnetic fluctuation in spite of the room temperature fluctuation and the vibration can be provided while ensuring magnetic field correction effect according to the superconductive magnet device for the MRI device. COPYRIGHT: (C)2005,JPO&NCIPI