Inductively coupled multi-section radio frequency field coil for

Details Inductively coupled multi-section radio frequency field coil for Inductively coupled multi-section radio frequency field coil for

1983-11-14

1993-12-28

Tokar, Michael J.

Electricity: measuring and testing

Particle precession resonance

Spectrometer components

324322, G01R 3320

Patent

active

052743322

ABSTRACT:
An NMR radio-frequency (RF) coil is made up, in the preferred embodiment, of upper and lower coil assemblies. Each coil assembly includes a tuned circuit. In operation, only one of the tuned circuits is energized, while the other is mutually inductively coupled such that they resonate together as one circuit at substantially the same frequency. A first set of latches is provided to fasten the lower coil assembly to a patient cradle. A second set of latches is utilized to fasten the upper coil assembly to the lower while permitting relative longitudinal motion between the two assemblies.
In another embodiment, which does not utilize mutual inductance, the tuned circuits on each assembly are electrically connected to form a complete coil by means of, for example, an electrical plug-and-jack arrangement.

REFERENCES:
patent: 2964696 (1960-12-01), Pinkley
patent: 3427532 (1969-02-01), Nelson
patent: 3945250 (1976-03-01), Elazar
patent: 4398149 (1983-08-01), Zens

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