The MRI apparatus has ring-shaped superconducting coils arranged to
vertically oppose each other. The superconducting coils are installed in
ring-shaped cooling containers. The cooling containers are accommodated
in radiation shield plates. The radiation shield plates are accommodated
in vacuum vessels. The cooling containers are connected together at at
least two locations. Support members are arranged between an outer wall
surface of the lower cooling container and an inner wall surface of the
lower vacuum vessel to support the lower cooling container on the lower
vacuum vessel. The upper cooling container is free, supported only by the
connecting tubes connecting the upper and lower cooling containers.