Spatially resolved nuclear magnetic resonance

S. D. Beyea, A. Caprihan, S. J. Glass, A. DiGiovanni 2003, (Non-destructive characterization of nanopore microstructure spatially resolved BET isotherms using nuclear magnetic resonance imaging),/. Appl. Phys. 94 (2), 935—41. 

Nuclear magnetic resonance imaging (NMRI) is a technique for measuring spatially resolved features of inhomogeneous samples. The technique has found particular utility in the nodical field, where it is used for diagnosis based on the fact that the mobility of water in diseased tissue is different from that in normal tissue. However, in recent years, NMRI has found its way into the field of materials, particularly polymers. 

The use of magnetic resonance imaging (MRI) to study flow patterns in reactors as well as to perform spatially resolved spectroscopy is reviewed by Lynn Gladden, Michael Mantle, and Andrew Sederman (University of Cambridge). This method allows even unsteady-state processes to be studied because of the rapid data acquisition pulse sequence methods that can now be used. In addition, MRI can be used to study systems with short nuclear spin relaxation times—e.g., to study coke distribution in catalytic reactors. 

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