Abstract
Multifrequency 14N nuclear quadrupole resonance (NQR) signals induced due to irradiation by two-frequency composite pulses have been studied. The experiments have been performed on RDX explosive at room temperature. It has been shown that the NQR signal at the observed transition can be essentially enhanced by use of the two-frequency composite pulses. Moreover, it is possible to excite and maintain the precession signal at the third, nonirradiated frequency. We have also shown that the two-frequency composite pulse can be applied as the preparatory pulse for increasing the NQR signal in multipulse sequences.
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Schedule a callMore From: Journal of Superconductivity: Incorporating Novel Magnetism
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