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arXiv · 2002.05396

Fast switching coil system for sample premagnetization in an unshielded ultra-low-field Nuclear Magnetic Resonance experiment

Valerio Biancalana·Roberto Cecchi·Leonardo Stiaccini·Antonio Vigilante
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Abstract

We present a system developed to premagnetize liquid samples in an ultra-low-field Nuclear Magnetic Resonance (NMR) experiment. Liquid samples of a few milliliter are exposed to a magnetic field of about 70~mT, which is abruptely switched off, so to leave a transverse microtesla field where nuclei start precessing. An accurate characterization of the transients and intermediate field level enables a reliable operation of the detection system, which is based on an optical magnetometer.

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Valerio Biancalana, Roberto Cecchi, Leonardo Stiaccini, Antonio Vigilante. 2020-02-13. Fast switching coil system for sample premagnetization in an unshielded ultra-low-field Nuclear Magnetic Resonance experiment. https://doi.org/10.1063/5.0003882

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