First evidence of T2* in SNMR measurements with SQUID sensors

Aaron C Davis; Mike Mueller-Petke; Raphael Dlugosch; Matthias Quietsch; James Macnae; Ronny Stolz

doi:10.1071/ASEG2015ab239

24th International Geophysical Conference and Exhibition – Geophysics and Geology Together for Discovery

ISSN: 2202-0586
E-ISSN:

oa First evidence of T2* in SNMR measurements with SQUID sensors
Authors Aaron C Davis^a, Mike Mueller-Petke^b, Raphael Dlugosch^b, Matthias Quietsch^c, James Macnae^d and Ronny Stolz^e
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^a CSIRO Perth, Australia ^b LIAG Hannover, Germany ^c Friedrich-S-University, Jena, Germany ^d RMIT Melbourne, Australia ^e LIPT Jena, Germany
Publisher: Australian Society of Exploration Geophysicists
Source: ASEG Extended Abstracts, Volume 2015, Issue 24th International Geophysical Conference and Exhibition – Geophysics and Geology Together for Discovery, Dec 2015, p. 1 - 3
DOI: https://doi.org/10.1071/ASEG2015ab239
- Published online: 01 Dec 2015

Abstract

We discuss the theoretical development of the measurement of the T2* component from a surface nuclear magnetic resonance (SNMR) experiment using superconducting quantum interference devices (SQUIDS) as a point B-field receiver.

We discuss the differences between point receivers compared to traditional coincident-loop receivers, and demonstrate the first measurements of T2* with a SQUID sensor at the hydrogeophysical test site in Schillerslage, Germany.

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2026-01-17

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References

Chwala, A. et al., 2011, Low temperature SQUID magnetometer systems for geophysical exploration with transient electromagnetics: Superconductor Science and Technology,24(12), 125006.
Davis, A.C. et al., 2012, Aquifer characterisation in the Uley South Basin, South Australia, using NMR: Final Report: CSIRO Water for a Healthy Country National Research Flagship.
Davis, A.C. et al., 2014, First evidence of detecting surface nuclear magnetic resonance signals using a compact B-field sensor: Geophysical Research Letters,41(12), 4222-4229.
Dlugosch, R. et al., 2010, New hydrogeophysical methods examined at the test-site Schillerslage -Derivation of hydraulic parameters in the field scale, in European Geosciences Union General Assembly.
Walsh, D. et al., 2013, A Small-Diameter NMR Logging Tool for Groundwater Investigations: Groundwater,51(6), 914-926.
Walsh, D.O., 2008, Multi-channel surface NMR instrumentation and software for 1D/2D groundwater investigations: Journal of Applied Geophysics,66(3-4), 140-150.

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Article Type: Research Article

Keyword(s): B-field; groundwater; NMR; SNMR; SQUID; Surface nuclear magnetic resonance

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oa First evidence of T2* in SNMR measurements with SQUID sensors

Abstract

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