Electricity: measuring and testing – Particle precession resonance – Using a nuclear resonance spectrometer system
Patent
1985-03-21
1987-07-21
Tokar, Michael J.
Electricity: measuring and testing
Particle precession resonance
Using a nuclear resonance spectrometer system
G01R 3308
Patent
active
046821066
ABSTRACT:
A method for proton decoupling, nuclear Overhauser enhancement and/or in selective saturation magnetic resonance spectroscopy, particularly relevant to in vivo spectroscopic imaging, utilizes a radio-frequency pulse modulated with a truncated (sinc X)/X function capable of being windowed. The radio-frequency pulse is tuned to the frequency of the nuclear species, such as .sup.1 H, to be decoupled or saturated and has a bandwidth adjusted to correspond to the entire chemical shift spectrum of the nuclear species to be decoupled, minimizing the amount of radio-frequency power transmitted into a volume of the irradiated sample. Several methods, and several embodiments of apparatus, for forming the required radio-frequency pulse, are disclosed.
REFERENCES:
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Bottomley Paul A.
Foster Thomas H.
Vatis Dimitrios
Davis Jr. James C.
General Electric Company
Jaworski Francis J.
Krauss Geoffrey H.
Snyder Marvin
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