SUPERCONDUCTIVE MAGNET DEVICE AND MAGNETIC RESONANCE IMAGING DEVICE USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide an MRI device with a 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 obtained while ensuring a magnetic field correction effect according to the superconductive magnet device for the MRI device. COPYRIGHT: (C)2005,JPO&NCIPI