Quadrature coil system

Details Quadrature coil system Quadrature coil system

1991-11-06

1993-06-01

Tokar, Michael J.

Electricity: measuring and testing

Particle precession resonance

Spectrometer components

324322, G01R 3320

Patent

active

052163687

ABSTRACT:
Two high-frequency coil systems are concentric with a common symmetry axis and are adapted to be connected to a high-frequency transmitter and/or a high-frequency receiver. The field directions of the systems enclose an angle of 90.degree. with respect to one another. Such a quadrature system can be used as a whole-body coil in a magnetic resonance examination apparatus whose magnetic field extends perpendicular to the longitudinal axis of a patient to be examined. The first high-frequency coil system comprises a plurality of inductively coupled, annular conductor loops mutually offset along the symmetry axis, the second coil system comprising conductors arranged in parallel planes and which enclose the symmetry axis arc-like and which are interconnected via conductors extending parallel to the symmetry axis.

REFERENCES:
patent: 4467282 (1984-08-01), Siebold
patent: 4986272 (1991-01-01), Riederer
patent: 4998066 (1991-03-01), Wichern et al.
patent: 4999580 (1991-03-01), Meyer et al.
patent: 5003265 (1991-03-01), Leussler
L. Bolinger et al., "A Multiple-Frequency Coil with a Highly Uniform B1 Field", Journal of Magnetic Resonance, vol. 81, No. 1, Jan. 1988, pp. 162-166.

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