Magnet arrangements

Details Magnet arrangements Magnet arrangements

1989-02-17

1989-09-26

Harris, George

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

Magnet structure or material

335297, 324318, H01F 700

Patent

active

048703800

ABSTRACT:
A magnet arrangement for producing a magnet field in a gap (3) between a pair of pole pieces (1), e.g. to provide the main magnetic field for application to a subject for magnetic resonance imaging, wherein adjacent the pole pieces the magnet core 15 has sections 17 of restricted cross-sectional area which serve to improve the homogeneity of the field in the gap.

REFERENCES:
patent: 4217568 (1980-08-01), Chiba et al.
patent: 4672346 (1987-06-01), Miyamoto et al.
patent: 4679022 (1987-07-01), Miyamoto et al.
H. Zijlstra; "Permanent Magnet Systems for NMR Tomography", Philips Journal of Research, vol. 40, No. 5, (1985), pp. 259-288.

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