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Development of Electric Field Nmr Signal Acquisition System

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posted on 2023-06-07, 21:33 authored by Robert Prance, Ahmet Aydin, Christopher J Harland, Helen Prance
An entirely new approach to signal acquisition in nuclear magnetic resonance (NMR) systems has recently been demonstrated experimentally at Sussex. We report results which bring this method closer to realising some significant advantages over the conventional approach. The method uses a novel sensor technology, the electric potential sensor, to detect the electric field signal associated with the precessing nuclear spins. It provides an alternative non-inductive method for acquiring the signal via a weak capacitive coupling to the sample. This paper builds on previously published results and demonstrates the ability to detect spin-echo signals from liquid samples as well as free induction decays from solid samples using this technique. In addition, we demonstrate the intrinsic spatial resolution of the method by using a measurement electrodes with a range of sizes from 180 to 0.2 mm2, corresponding to coupling capacitance of 1 pF to 1 fF. Conclusions are drawn as to some of the likely application areas for this signal acquisition technique

History

Publication status

  • Published

Publisher

Springer Verlag

Page range

245-252

Pages

8.0

Book title

Explosives Detection Using Magnetic And Nuclear Resonance Techniques

Place of publication

Dordrecht

ISBN

9789048130603

Series

NATO Science for Peace and Security Series B: Physics and Biophysics

Department affiliated with

  • Engineering and Design Publications

Full text available

  • No

Peer reviewed?

  • Yes

Editors

Jacques Fraissard, Olga Lapina

Legacy Posted Date

2012-02-06

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