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The suppression of synchronous interference NQR with Zeeman modulationKeywords: NQR , Zeeman modulation , synchronous interference , hexamethylenetetramine Abstract: The principles of frequency and Zeeman modulation in nuclear quadrupole resonance were considered, and the advantages of the latter were shown. The authors propose a method to eliminate the synchronous noise caused by switching of the magnetic field. Results of observations of the resonance line with 14N in the hexamethylenetetramine sample weighing 2 g were given.
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