SUPERCONDUCTIVE MAGNET DEVICE

摘要

PURPOSE:To make each part of cryostat in unit and provide a structure of a support fixing of components of a cryostat for readily carrying out assemble and disassemble in a superconductive magnet device comprising a superconductive coil; a cryogen tank for refrigerant storing liquid helium receiving the superconductive coil; a heat radiating shield; a vacuum container; and an introducing port for introducing liquid helium and a current. CONSTITUTION:A liquid helium introducing port and a cryogen tank for refrigerant use a metal seal using a metal packing having elasticity via a metal bellow 17 and a vacuum container is connected by a flange and an O-ring. A cryogen tank 1 for refrigerant is fixed by a cryogen tank fixing beam 6 mutually stretching by at least two chains 5 at one end supported by a cryogen tank movable supporting tool 5a of which both side ends are fixed to a vacuum container 3 in the gravity direction; and a holding ring 7 and a fixed beam supporting tool 6a that at least one end of an outer peripheral surface is fixed to the vacuum container 3 at three positions or more in the level direction.