To provide cryostat structure of efficient heat transfer, free from vibration and capable of obtaining high safety in maintenance work under an operation.
In this cryostat structure provided with an outer shell, and a neck tube for storing a cold head of a cryocooler, wherein the coldest cold stage of the cold head is disposed in a contact-free manner relative to the neck tube and the cryocontainer, and wherein a cryogenic fluid is located in the neck tube, is characterized in that the neck tube is disposed between the outer shell and the cryocontainer and/or a radiation shield, the neck tube is connected to the radiation shield arranged between the one cryocontainer and/or the plurality of cryocontainers, or between the cryocontainer and the outer shell, via a connection excellent in thermal conductivity, and a filling device is provided in an end where the neck tube has an ambient temperature. The efficient heat transmission is attained thereby, and the high safety is secured in the maintenance work under the operation, without discharging a magnet, at the same time.
MEYER URS
KRAUS ANDREAS
MRAZ BEAT
| JPH08279412A | 1996-10-22 | |||
| JPH11243007A | 1999-09-07 | |||
| JP2000079106A | 2000-03-21 | |||
| JPH05243042A | 1993-09-21 | |||
| JPH10294213A | 1998-11-04 |
| US20020002830A1 | 2002-01-10 | |||
| DE2906060A1 | 1979-08-30 | |||
| EP0905436A2 | 1999-03-31 | |||
| EP0905524A1 | 1999-03-31 | |||
| WO2003036207A2 | 2003-05-01 | |||
| WO2003036190A1 | 2003-05-01 | |||
| US5966944A | 1999-10-19 | |||
| US5563566A | 1996-10-08 | |||
| US5613367A | 1997-03-25 | |||
| US5782095A | 1998-07-21 | |||
| US5918470A | 1999-07-06 | |||
| US20030230089A1 | 2003-12-18 |
Satoshi Muramatsu
Natsuki Goto