Method and Apparatus for Detecting Target Species having Quadropolar Nuclei by Stochastic Nuclear Quadrupole Resonance.
Patent, Filed 28 Dec 95, patented 4 Mar 97,
DEPARTMENT OF THE NAVY WASHINGTON DC
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One aspect of the present invention is a method for detecting a class of target species containing quadrupolar nuclei in a specimen by nuclear quadrupole resonance, comprising a generating a random or pseudo-random train of rf pulses b irradiating the specimen with the train of rf pulses c detecting an NQR signal in response to irradiating the specimen d cross-correlating the NQR signal with the random or pseudo-random train of rf pulses, thereby generating a free induction decay signal and c converting the free induction decay signal into a frequency domain signal. Another aspect of the present invention is an apparatus for carrying out the method of the invention.
- Nuclear Physics and Elementary Particle Physics