Flow in porous metallic materials: A magnetic resonance imaging study

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Abstract

Purpose: To visualize flow dynamics of analytes inside porous metallic materials with laser-detected magnetic resonance imaging (MRI). Materials and Methods: We examine the flow of nuclear-polarized water in a porous stainless steel cylinder. Laser-detected MRI utilizes a sensitive optical atomic magnetometer as the detector. Imaging was performed in a remote-detection mode: the encoding was conducted in the Earth's magnetic field, and detection is conducted downstream of the encoding location. Conventional MRI (7T) was also performed for comparison. Results: Laser-detected MRI clearly showed MR images of water flowing through the sample, whereas conventional MRI provided no image. Conclusion: We demonstrated the viability of laser-detected MRI at low-field for studying porous metallic materials, extending MRI techniques to a new group of systems that is normally not accessible to conventional MRI. © 2008 Wiley-Liss, Inc.

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Xu, S., Harel, E., Michalak, D. J., Crawford, C. W., Budker, D., & Pines, A. (2008). Flow in porous metallic materials: A magnetic resonance imaging study. Journal of Magnetic Resonance Imaging, 28(5), 1299–1302. https://doi.org/10.1002/jmri.21532

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