Method and Apparatus for Detecting Target Species Having Quadrupolar Nuclei byStochastic Nuclear Quadrupole Resonance

摘要

One aspect of the present invention is a method for detecting a class of targetspecies containing quadrupolar nuclei in a specimen by nuclear quadrupole resonance, comprising: generating a random or pseudo-random train of rf pulses; irradiating the specimen with the train of rf pulses; detecting an NQR signal in response to irradiating the specimen; cross-correlating the NQR signal with the random or pseudo-random train of rf pulses, thereby generating a free induction decay signal; and 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.