A design approach for actively shielded magnetic resonance imaging magnets

A design approach for actively shielded magnetic resonance imaging magnets

A design basis for an actively shielded arrangement of coils is presented which results in an optimized magnet configuration suitable for magnetic resonance imaging (MRI). A random search technique is used to select configurations using the least amount of conductor, exhibiting the smallest level of...

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Veröffentlicht in:IEEE transactions on magnetics 1990-05, Vol.26 (3), p.1181-1188
1. Verfasser: Kalafala, A.K.
Format: Artikel
Sprache:eng
Schlagworte:
Boring
Coils
Conducting materials
Exact sciences and technology
Hospitals
Infrared, submillimeter wave, microwave and radiowave instruments, equipment and techniques
Instruments, apparatus, components and techniques common to several branches of physics and astronomy
Magnetic materials
Magnetic resonance imaging
Magnetic separation
Magnetic shielding
Magnetosphere
Magnets
Physics
Submillimeter wave, microwave and radiowave spectrometers
magnetic resonance spectrometers, auxiliary equipments and techniques
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Zusammenfassung:A design basis for an actively shielded arrangement of coils is presented which results in an optimized magnet configuration suitable for magnetic resonance imaging (MRI). A random search technique is used to select configurations using the least amount of conductor, exhibiting the smallest level of field inhomogeneity, and resulting in the least level of stray field while meeting central field and size requirements. A computer program has been developed which incorporates this design approach. Magnetic configurations selected with the aid of this design tool are discussed.< >
ISSN:0018-9464
1941-0069
DOI:10.1109/20.53996