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A bi-symmetric square wave Zeeman modulator for nuclear quadrupole resonance
D Mao1, G L Petersen, P J Bray
1Department of Physics, Brown University, Providence, RI 02912.
Solid State Nuclear Magnetic Resonance
|November 1, 1992
Abstract:
A simple circuit has been designed to generate a bi-symmetric square wave Zeeman modulation for the detection of nuclear quadrupole resonance. The square waveform not only provides an optimum result among bi-symmetric modulation waveforms, but also allows the observation of the Zeeman perturbed NQR powder pattern without the need for an extra external magnetic field.