Electricity: measuring and testing – Particle precession resonance – Using a nuclear resonance spectrometer system
Patent
1983-02-09
1985-02-26
Tokar, Michael J.
Electricity: measuring and testing
Particle precession resonance
Using a nuclear resonance spectrometer system
324307, G01R 3308
Patent
active
045020086
ABSTRACT:
A method and apparatus for nuclear magnetic resonance spectroscopy is disclosed which expands the decoupling bandwidth. In the method, a pulse train containing a series of radiofrequency pulses joined without interval is applied repeatedly to a sample, each radiofrequency pulse being phased at 0.degree., 90.degree., 180.degree., or 270.degree., and the radiofrequency carrier of the pulse train is reversed in phase at the interval longer than the repetitive cycle of the pulse train asynchronously with the repetition of application of the pulse train.
REFERENCES:
patent: 4068161 (1978-01-01), Ernst
R. Freeman et al., "Composite Pulse Decoupling" Journal of Magnetic Resonance, 43, pp. 502-507 (1981).
Jeol Ltd.
Tokar Michael J.
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