Electricity: measuring and testing – Particle precession resonance – Using a nuclear resonance spectrometer system
Patent
1983-10-06
1986-10-07
Tokar, Michael J.
Electricity: measuring and testing
Particle precession resonance
Using a nuclear resonance spectrometer system
324318, G01R 3320
Patent
active
046161813
ABSTRACT:
The transmitter/measurement coil of a nuclear magnetic resonance tomography apparatus for medical diagnosis in which comparatively high Larmor frequencies are used, is divided into a number of parallel-connected subcoils. The self resonance frequency of the coil can thus be made substantially higher than the Larmor frequency, with the result that the coil will have a suitably improved quality factor at higher frequencies, and measurements can be performed with an acceptable signal-to-noise ratio.
REFERENCES:
patent: 4259638 (1981-03-01), Krueger
patent: 4411270 (1983-10-01), Damadian
patent: 4439733 (1984-03-01), Hinshaw
patent: 4449097 (1984-05-01), Young
patent: 4452250 (1984-06-01), Chance
patent: 4521734 (1985-06-01), Macovski
Meredith, A New Method for Measuring the Amplitude of De Haas-Van Alphen Oscillations, Aug. 1975, Figure, Holland.
Kemner Rudolf
Sinnema Dirk
Haken Jack E.
Tokar Michael J.
U.S. Philips Corporation
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