Abstract.
In the last years, special effort has been made to achieve spatial localization with single-sided nuclear magnetic resonance systems. The implementation of three-dimensional imaging techniques on such sensors converted the tool in a truly noninvasive open tomograph useful to resolve the structure of arbitrary large samples. This paper summarizes the strategy developed to incorporate spatial resolution on open sensors, and presents a number of applications that illustrate the performance of the technique in fields like quality control, medicine, and materials science. In some cases the structure of the sample under study changes only along the depth direction. To resolve the depth structure with high resolution, a sensor generating strong and highly uniform static gradient has been presented. This profiling tool quickly found important applications in resolving multilayer structures, where even dynamic processes happening at the surface of the sample can be followed in real time. In this work the method is used to study the efficiency of barrier layers included to stop the diffusion of solvents penetrating into the sample and to study aging processes that degrade the material structure. These examples demonstrate the potential of single-sided sensors to assist in the design of materials with improved properties.
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Authors' address: Bernhard Blümich, Institut für Technische Chemie und Makromolekulare Chemie, Rheinisch-Westfälische Technische Hochschule, Worringerweg 1, 52056 Aachen, Germany
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Kolz, J., Goga, N., Casanova, F. et al. Spatial Localization with Single-Sided NMR Sensors. Appl Magn Reson 32, 171–184 (2007). https://doi.org/10.1007/s00723-007-0011-6
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DOI: https://doi.org/10.1007/s00723-007-0011-6