NMR in polymers using magnetic field gradients imaging, diffusion and flow

While the use of magnetic field gradients to study molecular translational motion is almost as old as NMR itself, the realisation that these gradients could also be used to reconstruct an image of the molecular distributions 

In general, the field gradient tensor describes the variation of three Cartesian components of magnetic field along the three independent Cartesian axes. Because in NMR applications such gradients result in additional magnetic 

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NMR in polymers using magnetic field gradients imaging, diffusion and flow... 

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