Finite-Difference Approach for the High-Precision Analysis of Rotating-Frame Diffusion Images

Abstract

A finite-difference approach has been developed for precisely determining diffusion coefficient and T1 relaxation time in fluid samples analyzed by magnetization-grating rotating-frame imaging (MAGROFI) with either a surface coil or a toroid cavity detector (TCD). This approach avoids shortcomings of phenomenologically based approximations, such as neglect of sample geometries with singularities at the confines of the sample volume, and accounts for the diffusive edge enhancement observed in fluid imaging. Error limits are discussed. The new method has been applied to the determination of the self-diffusion coefficient for MAGROFI experiments using TCDs filled with acetone.

Department(s)

Chemistry

International Standard Serial Number (ISSN)

1090-7807

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2000 Elsevier, All rights reserved.

Publication Date

01 Aug 2000

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