Mitra, P. P., Sen, P. N.
(1992)
*Effects of surface relaxation on NMR pulsed field gradient experiments in porous media.*
Physica A: Statistical Mechanics and its Applications, 186 (1-2).
pp. 109-114.
ISSN 03784371 (ISSN)

## Abstract

We derive an expression for the magnetization M(k,t) in a pulsed fiield gradient spin echo (PFGSE) experiment for spins diffusing in a restricted geometry with relaxation at the pore walls. Exact solutions for a slab, and simple considerations for a periodic pore geometry show that the normalized amplitude M(k,t,p)/M(0, t,p) depends only weakly on the surface relaxivity p for small p. This suggests a 'factorization' that for small p, Mp(k,t) ≈ Mp(0,t) Mp=0(k,t). This factorization is useful in understanding PFGSE experiments, because Mp=0(k,t) is theoretically simpler to analyze, and is related to the structure of the pore space. © 1992.

Item Type: | Paper |
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Subjects: | Investigative techniques and equipment > magnetic resonance imaging physics physics > biophysics > pore dynamics |

CSHL Authors: | |

Communities: | CSHL labs > Mitra lab |

Depositing User: | CSHL Librarian |

Date: | 1992 |

Date Deposited: | 02 Apr 2012 20:20 |

Last Modified: | 10 Feb 2017 20:49 |

URI: | http://repository.cshl.edu/id/eprint/25863 |

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