Hole-burning diffusion measurements in high magnetic field gradients

E. E. Sigmund; W. P. Halperin

doi:10.1016/S1090-7807(03)00133-2

Hole-burning diffusion measurements in high magnetic field gradients

E. E. Sigmund^*, W. P. Halperin

^*Corresponding author for this work

Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

16 Scopus citations

Abstract

We describe methods for the measurement of translational diffusion in very large static magnetic field gradients by NMR. The techniques use a "hole-burning" sequence that, with the use of fringe field gradients of 42T/m, can image diffusion along one dimension on a submicron scale. Two varieties of this method are demonstrated, including a particularly efficient mode called the "hole-comb," in which multiple diffusion times comprising an entire diffusive evolution can be measured within the span of a single detected slice. The advantages and disadvantages of these methods are discussed, as well as their potential for addressing non-Fickian diffusion, diffusion in restricted media, and spatially inhomogeneous diffusion.

Original language	English (US)
Pages (from-to)	99-104
Number of pages	6
Journal	Journal of Magnetic Resonance
Volume	163
Issue number	1
DOIs	https://doi.org/10.1016/S1090-7807(03)00133-2
State	Published - Jul 2003

Funding

We thank Y.-Q. Song and S. Lee for useful comments. This work has been supported by the NSF-MRSEC at the Materials Research Center at Northwestern University, Grant No. DMR-0076097.

Keywords

Diffusion
Fringe field
Hole-burning
NMR

ASJC Scopus subject areas

Condensed Matter Physics
Nuclear and High Energy Physics
Biophysics
Biochemistry

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10.1016/S1090-7807(03)00133-2

Cite this

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AU - Halperin, W. P.

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AB - We describe methods for the measurement of translational diffusion in very large static magnetic field gradients by NMR. The techniques use a "hole-burning" sequence that, with the use of fringe field gradients of 42T/m, can image diffusion along one dimension on a submicron scale. Two varieties of this method are demonstrated, including a particularly efficient mode called the "hole-comb," in which multiple diffusion times comprising an entire diffusive evolution can be measured within the span of a single detected slice. The advantages and disadvantages of these methods are discussed, as well as their potential for addressing non-Fickian diffusion, diffusion in restricted media, and spatially inhomogeneous diffusion.

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Hole-burning diffusion measurements in high magnetic field gradients

Abstract

Funding

Keywords

ASJC Scopus subject areas

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