Superconductive magnetic device, magnetic resonance imaging apparatus and magnetic field inhomogeneity compensation method
US8198897B2 · kind B2 · utility
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6References
16Claims
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Key dates
| Filing date | Apr 10, 2008 |
| Grant date | Jun 12, 2012 |
| Priority date | — |
| Expiry date | Mar 15, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/389
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The magnetic field homogeneity adjusting device (20) is characterized by comprising a magnetic field distribution measuring unit (21) for measuring the magnetic field distribution in the magnetic field space, a temperature variation calculating unit (22) for calculating the temperature variation of the ferromagnetic bodies needed to improve the homogeneity of the magnetic field space based on the measured magnetic field distribution, and a temperature control unit (12) for setting a temperature control value of the ferromagnetic bodies according to the calculated temperature variation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.