Electricity: measuring and testing – Particle precession resonance – Spectrometer components
Patent
1987-12-22
1990-02-27
Williams, Hezron E.
Electricity: measuring and testing
Particle precession resonance
Spectrometer components
335216, G01R 3320
Patent
active
049053167
ABSTRACT:
A magnetic field generating system for use in a magnetic resonance imaging system to apply a static magnetic field and additionally a gradient field and a high frequency field to a body under examination in order to excite a magnetic resonance and to collect magnetic resonance data about the magnetic resonance. The field generating system comprises a superconducting including magnet a superconducting coil for generating the static magnetic field, a gradient coil for generating the gradient field and a high frequency coil for generating the high frequency field. At least part of the superconducting magnet is made of a metal member, and at least part of the metal member is interposed between the superconducting coil the gradient coil provided with non-conductive sections for impeding an eddy current.
REFERENCES:
patent: 4590428 (1986-05-01), Muller et al.
patent: 4652824 (1987-03-01), Oppelt
patent: 4688132 (1987-08-01), Dustmann
Kabushiki Kaisha Toshiba
O'Shea Kevin D.
Williams Hezron E.
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