Radio frequency coil for nuclear magnetic resonance imaging

Details Radio frequency coil for nuclear magnetic resonance imaging Radio frequency coil for nuclear magnetic resonance imaging

1987-02-12

1988-07-05

Tokar, Michael J.

Electricity: measuring and testing

Particle precession resonance

Spectrometer components

333219, G01R 3320

Patent

active

047557567

ABSTRACT:
A radio frequency coil for nuclear magnetic resonance imaging comprises at least one pair of arcuate H-shaped members which are disposed about a longitudinal axis so as to form a tube. A variable capacitor means for adjusting the resonant frequency of the coil is connected across the feeding points of the coil. A balanced feed circuit comprising a balanced impedance matching circuit and a balanced-to-unbalanced converter is connected across the feeding points. An unbalanced current from a transceiver is converted into balanced currents which are fed to the feeding points.

REFERENCES:
patent: 4633181 (1986-12-01), Murphy et al.
patent: 4634980 (1987-01-01), Misic et al.
patent: 4641097 (1987-02-01), Bottomley
"An Efficient Decoupler Coil Design Which Reduces Heating in Conductive Samples in Superconducting Spectrometers", Journal of Magnetic Resonance, vol. 36, pp. 447-451, 1979.

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