Some perspectives on dispersion and the use of ensemble-averaged PGSE NMR |
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Authors: | Callaghan Paul T |
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Institution: | MacDiarmid Institute for Advanced Materials and Nanotechnology, School of Chemical and Physical Sciences, Victoria University of Wellington, Wellington, New Zealand. paul.callaghan@vuw.ac.nz |
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Abstract: | Magnetic resonance methodology has made a significant impact in helping us understand the physics of porous media. Among an important class of experiments is that set of techniques designed to measure fluid dispersion. This paper provides some background on some of the underlying physics of dispersion, and outlines some of the NMR approaches that have proven successful. The local and nonlocal dispersion tensors are described and the prospects for future NMR advances considered. |
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