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Merck
  • A bi-symmetric square wave Zeeman modulator for nuclear quadrupole resonance.

A bi-symmetric square wave Zeeman modulator for nuclear quadrupole resonance.

Solid state nuclear magnetic resonance (1992-11-01)
D Mao, G L Petersen, P J Bray
摘要

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.

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Sigma-Aldrich
偏硼酸钙, technical, 39-44% B2O3 basis, 31-37% CaO basis, powder