Details
| Original language | English |
|---|---|
| Pages (from-to) | 4222-4229 |
| Number of pages | 8 |
| Journal | Geophysical research letters |
| Volume | 41 |
| Issue number | 12 |
| Publication status | Published - 2014 |
| Externally published | Yes |
Abstract
The noninvasive detection and characterization of subsurface aquifer structures demands geophysical techniques. Surface nuclear magnetic resonance (SNMR) is the only technique that is directly sensitive to hydrogen protons and, therefore, allows for unambiguous detection of subsurface water. Traditionally, SNMR utilizes large surface coils for both transmitting excitation pulses and recording the groundwater response. Recorded data are thus a voltage induced by the time derivative of the secondary magnetic field. For the first time, we demonstrate that the secondary magnetic field in a SNMR experiment can be directly detected using a superconducting quantum interference device magnetometer. Conducting measurements at a test site in Germany, we demonstrate not only the ability to detect SNMR signals on the order of femtoTesla but also we are able to satisfy the observed data by inverse modeling. This is expected to open up completely new applications for this exciting technology.
ASJC Scopus subject areas
- Earth and Planetary Sciences(all)
- Geophysics
- Earth and Planetary Sciences(all)
- General Earth and Planetary Sciences
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In: Geophysical research letters, Vol. 41, No. 12, 2014, p. 4222-4229.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - First evidence of detecting surface nuclear magnetic resonance signals using a compact B-field sensor
AU - Davis, Aaron C.
AU - Dlugosch, Raphael
AU - Queitsch, Matthias
AU - Macnae, James C.
AU - Stolz, Ronny
AU - Müller-Petke, Mike
N1 - Publisher Copyright: © 2014. American Geophysical Union. All Rights Reserved.
PY - 2014
Y1 - 2014
N2 - The noninvasive detection and characterization of subsurface aquifer structures demands geophysical techniques. Surface nuclear magnetic resonance (SNMR) is the only technique that is directly sensitive to hydrogen protons and, therefore, allows for unambiguous detection of subsurface water. Traditionally, SNMR utilizes large surface coils for both transmitting excitation pulses and recording the groundwater response. Recorded data are thus a voltage induced by the time derivative of the secondary magnetic field. For the first time, we demonstrate that the secondary magnetic field in a SNMR experiment can be directly detected using a superconducting quantum interference device magnetometer. Conducting measurements at a test site in Germany, we demonstrate not only the ability to detect SNMR signals on the order of femtoTesla but also we are able to satisfy the observed data by inverse modeling. This is expected to open up completely new applications for this exciting technology.
AB - The noninvasive detection and characterization of subsurface aquifer structures demands geophysical techniques. Surface nuclear magnetic resonance (SNMR) is the only technique that is directly sensitive to hydrogen protons and, therefore, allows for unambiguous detection of subsurface water. Traditionally, SNMR utilizes large surface coils for both transmitting excitation pulses and recording the groundwater response. Recorded data are thus a voltage induced by the time derivative of the secondary magnetic field. For the first time, we demonstrate that the secondary magnetic field in a SNMR experiment can be directly detected using a superconducting quantum interference device magnetometer. Conducting measurements at a test site in Germany, we demonstrate not only the ability to detect SNMR signals on the order of femtoTesla but also we are able to satisfy the observed data by inverse modeling. This is expected to open up completely new applications for this exciting technology.
UR - http://www.scopus.com/inward/record.url?scp=84903222691&partnerID=8YFLogxK
U2 - 10.1002/2014GL060150
DO - 10.1002/2014GL060150
M3 - Article
AN - SCOPUS:84903222691
VL - 41
SP - 4222
EP - 4229
JO - Geophysical research letters
JF - Geophysical research letters
SN - 0094-8276
IS - 12
ER -