Chapter

Physics of Diffusion

Paul T. Callaghan

in Diffusion MRI

Published on behalf of Oxford University Press

Published in print November 2010 | ISBN: 9780195369779
Published online September 2012 | e-ISBN: 9780199965144 | DOI: http://dx.doi.org/10.1093/med/9780195369779.003.0004
Physics of Diffusion

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This chapter discusses the history of diffusion theory and the measurement of diffusion by nuclear magnetic resonance (NMR) pulsed gradient methods. The idea of a conditional probability for displacement is introduced, along with the “average propagator” approach, a helpful tool in understanding q-space and diffusive diffraction. Multidimensional correlation and exchange measurements involving both diffusion and relaxation are also explained.

Chapter.  10655 words.  Illustrated.

Subjects: Neuroscientific Techniques

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