Electricity: measuring and testing – Particle precession resonance – Using a nuclear resonance spectrometer system
Patent
1992-04-22
1994-02-01
Arana, Louis
Electricity: measuring and testing
Particle precession resonance
Using a nuclear resonance spectrometer system
324309, G01V 300
Patent
active
052835251
ABSTRACT:
An object is placed within the field of magnetic coils which generate a steady uniform magnetic field. The object contains nuclear spins of coupled first and second types of nucleus, for example, CH.sub.n in which C is a .sup.13 C carbon isotope and H is a .sup.1 H proton. Magnetic resonance signals are generated in the object by RF pulses. Pulse and gradient sequences are generated for providing magnetization transfer from the first nucleus to the second nucleus via first and second channels. A display displays spectra formed from resonance signals processed by a programmed processor via Fourier tranformation of sampled values. A pick up coil is tuned to receive the signals from a corresponding nucleus which is processed by a corresponding channel. The process is volume selective combined with a Hartmann-Hahn transfer sequence.
REFERENCES:
patent: 4682107 (1987-07-01), Bendall et al.
patent: 4922203 (1990-05-01), Sillerud et al.
patent: 4987369 (1991-01-01), Van Stapele et al.
R. R. Ernst et al., "Principles of Nuclear Magnetic Resonance in One and Two Dimensions", Oxford Scientific Publications, 1986, pp. 185-191.
R. J. Ordidge et al., "Image-Selected in Viro Spectroscopy (ISIS). A New Technique for Spatially Selective NMR Spectroscopy", Journal of Magnetic Resonance, vol. 66, pp. 283-194. (Apr. 1985).
Den Hollander Jan A.
Lamerichs Rudolf M. J. N.
Van Stapele Reurt P.
Arana Louis
Slobod Jack D.
U.S. Philips Corporation
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