ABSTRACT

Magnetic resonance imaging (MRI) methods have been used with success (Nakagawa, et al. 1997a) in pure and binary mixtures to elucidate features that are difficult to see by optical methods noted above. There are limitations to the technique but the ability for MRI to make spatially resolved measurements in “realistic” settings means that models and mechanisms for internal transport processes in granular materials can be evaluated (Caprihan & Seymour, 2000).