Design and testing of a low impedance transceiver circuit for nitrogen-14 nuclear quadrupole resonance.

Abstract

A low impedance transceiver circuit consisting of a transmit-receive switch circuit, a class-D amplifier and a transimpedance amplifier (TIA) was newly designed and tested for a nitrogen-14 NQR. An NQR signal at 1.37MHz from imidazole was successfully observed with the dead time of ~85µs under the high Q transmission (Q~120) and reception (Q~140). The noise… (More)
DOI: 10.1016/j.ssnmr.2014.09.002

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