Superconducting magnet apparatus and magnetic resonance imaging apparatus
US7961067B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 19, 2007 |
| Grant date | Jun 14, 2011 |
| Priority date | — |
| Expiry date | Jul 19, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/3873
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A superconducting magnet apparatus obtains high magnetic field uniformity without increasing the volume of a magnetic material even against disturbances. The superconducting magnet apparatus has a circular superconducting coil which generates a magnetic field; a coil vessel which contains the superconducting coil 11 together with refrigerant; a thermal shield arranged so as to surround the coil vessel; a vacuum vessel with inside kept vacuum which surrounds the thermal-shield; and magnetic materials and for correcting the magnetic field, the magnetic materials being arranged in the vacuum vessel; wherein the magnetic materials and are supported by a heat-insulation support medium fixed to the coil vessel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.