Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – Superconductive type
Patent
1995-07-31
1997-12-09
Donovan, Lincoln
Electricity: magnetically operated switches, magnets, and electr
Magnets and electromagnets
Superconductive type
335299, 324318, H01F 100
Patent
active
056964765
ABSTRACT:
A passively shimmed open architecture magnetic resonance imaging magnet utilizing separated superconducting coil assemblies with open space between including means to obtain a uniform magnetic field in the open space by shaped ferromagnetic bands in the bore of the magnets, the shaping including an axial notch and circumferential holes for attaching passive shims.
REFERENCES:
patent: 4710741 (1987-12-01), McGinley
patent: 5291169 (1994-03-01), Ige et al.
patent: 5463364 (1995-10-01), Muller
Havens Timothy John
Smith R. Seth
Donovan Lincoln
Freedman Irving M.
General Electric Company
Pilarski John H.
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