An efficient eigenfunction approach to calculate spin-echo signals in heterogeneous porous media

Matias Nordin; Denis Grebenkov; Martin Nilsson Jacobi; Magnus Nydeń

doi:10.1016/j.micromeso.2013.02.055

An efficient eigenfunction approach to calculate spin-echo signals in heterogeneous porous media

Matias Nordin
, Denis Grebenkov
, Martin Nilsson Jacobi
, Magnus Nydeń

Chalmers University of Technology
University of South Australia

Résultats de recherche: Contribution à un journal › Article › Revue par des pairs

Résumé

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(k²), 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.

langue originale	Anglais
Pages (de - à)	7-10
Nombre de pages	4
journal	Microporous and Mesoporous Materials
Volume	178
Les DOIs	https://doi.org/10.1016/j.micromeso.2013.02.055
état	Publié - 15 sept. 2013

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10.1016/j.micromeso.2013.02.055

Contient cette citation

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title = "An efficient eigenfunction approach to calculate spin-echo signals in heterogeneous porous media",

abstract = "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(k2), 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.",

keywords = "Diffusion, Eigenfunctions, Eigenvalues, Laplace operator, NMR",

author = "Matias Nordin and Denis Grebenkov and Jacobi, \{Martin Nilsson\} and Magnus Nyde{\'n}",

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doi = "10.1016/j.micromeso.2013.02.055",

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T1 - An efficient eigenfunction approach to calculate spin-echo signals in heterogeneous porous media

AU - Nordin, Matias

AU - Grebenkov, Denis

AU - Jacobi, Martin Nilsson

AU - Nydeń, Magnus

PY - 2013/9/15

Y1 - 2013/9/15

N2 - 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(k2), 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.

AB - 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(k2), 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.

KW - Diffusion

KW - Eigenfunctions

KW - Eigenvalues

KW - Laplace operator

KW - NMR

U2 - 10.1016/j.micromeso.2013.02.055

DO - 10.1016/j.micromeso.2013.02.055

M3 - Article

AN - SCOPUS:84894904777

SN - 1387-1811

VL - 178

SP - 7

EP - 10

JO - Microporous and Mesoporous Materials

JF - Microporous and Mesoporous Materials

ER -

An efficient eigenfunction approach to calculate spin-echo signals in heterogeneous porous media

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