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Cancellation of ringing artifacts and far field interference in nuclear quadrupole resonance

  • U.S. Patent No. 7,791,342
  • Issued: September 7, 2010
  • Status: Active
Photonics Electronics

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A device for detecting a class of target species containing quadrupolar nuclei in a specimen by nuclear quadrupole resonance, comprising a pulse generator for generating a three-pulse-composite-pulse to refocus signals that were excited by another pulse, an irradiator for irradiating a specimen with the three-pulse-composite-pulse, a detector for detecting an NQR signal in response to irradiating the specimen, a coupler for transmitting the three-pulse-composite-pulse to the irradiating means, and a transformer for converting the free induction decay signal into a frequency domain signal.

A method for detecting a class of target species containing quadrupolar nuclei in a specimen by nuclear quadrupole resonance, comprising generating a three-pulse-composite-pulse, irradiating said specimen with said three-pulse-composite-pulse, detecting an NQR signal in response to irradiating said specimen and converting said free induction decay signal into a frequency domain signal.

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