Title:
磁極片付き超伝導マグネット用の装置および方法
Document Type and Number:
Japanese Patent JP3615119
Kind Code:
B2
Abstract:
A magnet, such as an open magnetic-resonance-imaging (MRI) magnet) has a first assembly including a superconductive main coil and a magnetizable pole piece which, during magnet operation, has a temperature equal to generally the temperature of the main coil. In one example, a cryogenic-fluid (e.g., liquid helium) dewar encloses the main coil, and the dewar has an interior surface defined in part by a surface portion of the pole piece. A method for providing a homogeneous imaging volume for a magnet includes steps to construct the above-described magnet.
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Inventors:
Evangelos Triphone Rascalis
Michael Anthony Palmo, Jr.
Michael Anthony Palmo, Jr.
Application Number:
JP2000120210A
Publication Date:
January 26, 2005
Filing Date:
April 21, 2000
Export Citation:
Assignee:
GENERAL ELECTRIC COMPANY
International Classes:
G01R33/3815; H01F6/00; G01R33/38; (IPC1-7): H01F6/00
Domestic Patent References:
| JP9182730A | ||||
| JP62126809U | ||||
| JP9213519A | ||||
| JP10135027A | ||||
| JP5090022A | ||||
| JP2000037366A | ||||
| JP2000051178A |
Attorney, Agent or Firm:
Kenichi Matsumoto