An efficient eigenfunction approach to calculate spin-echo signals in heterogeneous porous media
Artikel i vetenskaplig tidskrift, 2013

An approximate method for solving the Bloch-Torrey equation by surface integrals is developed. The method presents a fast means for calculating pulsed-gradient spin-echo nuclear magnetic resonance signals in porous systems, and it is especially efficient when the surface-to-volume ratio is low. The number of operations for retrieving echo decays scale as O(k(2)), where k is the number of surface elements. The theory is numerically validated for pulsed-gradient spin-echo sequences on two-dimensional and three-dimensional examples.

Eigenfunctions

Eigenvalues

Laplace operator

NMR

Diffusion

Författare

Matias Nordin

Chalmers, Kemi- och bioteknik, Teknisk ytkemi

D. Grebenkov

Laboratoire de Physique de la Matiere Condensee

Martin Nilsson Jacobi

Chalmers

Magnus Nydén

University of South Australia

Microporous and Mesoporous Materials

1387-1811 (ISSN)

Vol. 178 7-10

Ämneskategorier

Fysikalisk kemi

DOI

10.1016/j.micromeso.2013.02.055

Mer information

Senast uppdaterat

2018-09-10