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  • Title: Application of a portable nuclear magnetic resonance surface probe to porous media.
    Author: Marko A, Wolter B, Arnold W.
    Journal: J Magn Reson; 2007 Mar; 185(1):19-27. PubMed ID: 17140825.
    Abstract:
    A portable nuclear magnetic resonance (NMR) surface probe was used to determine the time-dependent self-diffusion coefficient D(t) of water molecules in two fluid-filled porous media. The measuring equipment and the inhomogeneous magnetic fields in the sensitive volume of the probe are described. It is discussed how to evaluate D(t) using a surface probe from the primary and stimulated echoes generated in three-pulse experiments. Furthermore, the evaluation of D(t) allows one to determine the geometrical structure of porous materials.
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