| 摘要 |
PROBLEM TO BE SOLVED: To provide a cooling method and a cooling apparatus for cooling an object such as a superconductive electromagnet coil, capable of cooling an object such as the superconductive electromagnet coil, without being immersed into a cryogenic liquid vessel, and capable of using a conventional cryogen container under the condition where a residual amount of a cryogenic liquid is substantially low, without providing a cooling loop device. SOLUTION: This cooling apparatus for cooling cooled equipment has the cryogen container 10 storing the cooled equipment, a cryogenic gas for filling the cryogen container, and a refrigerator 12 having a cooling surface exposed to an inner face side of the cryogen container 10 to cool the cryogenic gas, and a gas flow generator constituted to freely circulate the cryogenic gas in the cryogen container, and constituted to cool the cryogenic gas by a refrigerator, to heat the gas by heat from the cooled equipment, and to cool thereby the cooled equipment. COPYRIGHT: (C)2008,JPO&INPIT |
