Diffusion propagator as a probe of the structure of porous media
- 15 June 1992
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 68 (24) , 3555-3558
- https://doi.org/10.1103/physrevlett.68.3555
Abstract
We propose a simple ansatz that relates the diffusion propagator for the molecules of a fluid confined in a porous medium to the pore-space structure factor. Theoretical arguments and numerical simulations show that it works well for both periodic and disordered geometries. The ansatz allows us to deconvolve structural data from momentum dependent pulsed field gradient spin-echo data.Keywords
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