Compact, open geometry U-shaped magnet for magnetic resonance im

Details Compact, open geometry U-shaped magnet for magnetic resonance im Compact, open geometry U-shaped magnet for magnetic resonance im

1994-12-12

1997-01-07

Tokar, Michael

Electricity: measuring and testing

Particle precession resonance

Spectrometer components

324318, G01V 300

Patent

active

055920900

ABSTRACT:
A compact, open geometry U-shaped magnet formed by parallel iron slabs and a flux return is activated by a coil which surrounds the flux return. The inner surfaces of the iron slabs and an outer surface of the coil are substantially contiguous. The field homogeneity within the compact, open geometry U-shaped magnet is improved by controlling the reluctance of a secondary flux flow circuit extending away from the pair of parallel iron slabs. The geometry of the compact, open geometry U-shaped magnet also provides for utilization of an automatic active shimming system.

REFERENCES:
patent: 3434085 (1969-03-01), Gang
patent: 4587490 (1986-05-01), Muller et al.
patent: 4667174 (1987-05-01), MacKinnon et al.
patent: 4761614 (1988-08-01), Prammer et al.
patent: 4771785 (1988-09-01), Duer
patent: 4791370 (1988-12-01), MacKinnon
patent: 4899109 (1990-02-01), Tropp et al.
patent: 4985678 (1991-01-01), Gangarosa et al.
patent: 4987371 (1991-01-01), Glover et al.
patent: 5006804 (1991-04-01), Dorri et al.
patent: 5008624 (1991-04-01), Yoshida
patent: 5168232 (1992-12-01), Glover et al.
patent: 5194810 (1993-03-01), Breneman et al.
patent: 5207224 (1993-05-01), Dickinson et al.
patent: 5291169 (1994-03-01), Ige et al.
patent: 5305749 (1994-04-01), Li et al.
patent: 5315276 (1994-05-01), Huson et al.
patent: 5343151 (1994-08-01), Cory et al.
Minimum Energy MRI Gradient Coils of General Geometry, by Sergio Pissanetzky Meas. Sci. Technol. 3 (1992) 667-673.
Formation of a Homogeneous Magnetic Field in Spectrometer Dipole Magnet Using Permanent Magnet, by Borisov et al., IEEE Transactions on Magnetics, vol. 28, No. 1 (Jan. 1992) 568-570.
The Design and Construction of High Field-Uniformity Permanent Magnet System for MRI, by Feng et al., IEEE Transactions on Magnetics, vol. 28, No. 1, (Jan. 1992) 641-643.
Bringing MRI to More Patients, Magna-Lab, Inc. (1992).
Magnetic Field Corrections in the Cyclotron, by M. E. Rose, Physical Review, vol. 53 (May 1938) 715-719.
On a Design of Wide Range Magnet for Cyclotron, by Hiroo Kumagai, Lear Instruments and Methods 6 (1960) 213-216.
On the Design of Wide Range Electromagnets of High Homogeneity, by A. Huber and H. Primas, Lear Instruments and Methods 33 (1965) 125-130.
General Electric Preparing to Announce Extraordinary New MRI System, Superconductivity News, vol. 6, No. 16 (Jan. 1994) 1-12.

Affiliated with

Also associated with

Rating

Compact, open geometry U-shaped magnet for magnetic resonance im does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Compact, open geometry U-shaped magnet for magnetic resonance im, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Compact, open geometry U-shaped magnet for magnetic resonance im will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1767445