Title:
【発明の名称】防振型クライオスタツト
Document Type and Number:
Japanese Patent JP3102492
Kind Code:
B2
Abstract:
A magnetically shielded cryostat, e.g. in a MRI imaging apparatus, has a heat-insulating tank (7) having an outer wall. A magnetic shield (17,24) is spaced from the tank, covers at least partly the outer wall of the tank and is not supported by the tank. A refrigerator (10) having a cooled member (13,14) extends into the tank (7). In order to avoid direct transmission of vibration of the refrigerator (10) to a centre region of the shield (17,24), the refrigerator is supported on the magnetic shield by at least one elongate support member (18b) connected to the shield only at or close to the ends of the shield.
Inventors:
Norihide Saho
Takeo Nemoto
Mitsuru Saeki
Takeo Nemoto
Mitsuru Saeki
Application Number:
JP19053990A
Publication Date:
October 23, 2000
Filing Date:
July 20, 1990
Export Citation:
Assignee:
株式会社日立製作所
International Classes:
F25D3/10; A61B5/055; F02G1/044; F17C13/00; G01R33/385; G01R33/421; H01F6/04; H01L39/04; (IPC1-7): H01L39/04; F25D3/10; H01F6/04
Domestic Patent References:
| JP281486A | ||||
| JP278208A |
Attorney, Agent or Firm:
Yasuo Sakuta (1 outside)