Nuclear magnetic resonance imaging in space and frequency coordi

Details Nuclear magnetic resonance imaging in space and frequency coordi Nuclear magnetic resonance imaging in space and frequency coordi

1980-03-06

1982-03-09

Tokar, Michael J.

Electricity: measuring and testing

Particle precession resonance

Using a nuclear resonance spectrometer system

324313, G01N 2700

Patent

active

043191908

ABSTRACT:
Imaging of 1-, 2-, or 3-dimensional specimens is effected based on nuclear magnetic resonance of a chemical species. A specimen is placed in an essentially constant magnetic field H.sub.o, exposed to an electromagnetic pulse, and exposed to an an additional magnetic field H.sub.1 whose strength is linearly increasing across the specimen. A free induction decay signal is sampled after field H.sub.1 is turned off, and sample values are stored for later processing. These steps are carried out repeatedly for different fields H.sub.1, and stored sample values are Fourier transformed into desired frequency spectra at points in the specimen.

REFERENCES:
patent: 4184110 (1980-01-01), Hinshaw

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