Magnetic field generating device used for MRI

Details Magnetic field generating device used for MRI Magnetic field generating device used for MRI

1991-09-27

1994-02-01

Donovan, Lincoln

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

Magnet structure or material

335299, H01F 100

Patent

active

052835448

ABSTRACT:
A magnetic field generating device used for MRI includes a pair of magnetic pole pieces to each other to provide a gap therebetween and generate a magnetic field in the gap, the magnetic pole pieces being formed by laminating and integrating a plurality of non-oriented silicon steel sheets. By using laminated non-oriented silicon sheets the eddy current generated in the magnetic pole pieces caused by the application of GC pulses can be reduced and phenomenon of the residual magnetism can also be reduced.

REFERENCES:
patent: 4671119 (1987-02-01), Moore
patent: 4758813 (1988-07-01), Holsinger et al.
patent: 4818966 (1989-04-01), Miyamoto et al.
patent: 4827235 (1989-05-01), Inomata et al.
patent: 4887059 (1989-12-01), Asano et al.
patent: 5061897 (1991-10-01), Danby et al.
patent: 5124651 (1992-06-01), Danby et al.

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