title: NMR microimaging studies of water diffusivity in saturated, microporous systems.
abstract: A novel microimaging method is described for measuring the effective diffusion coefficient (D infinity) of water in saturated, microporous materials. A simple multicompartment computer simulation was used to show how the value of D infinity, when combined with measurements of water proton relaxation times and pulsed field gradient spin-echo amplitudes, allows the pore size distribution and pore connectivity to be characterized.
authors.affiliation: AFRC Institute of Food Research, Norwich Laboratory, Norwich Research Park, Colney, United Kingdom.
authors.forename: B P
authors.initials: BP
authors.lastname: Hills
authors.forename: S C
authors.initials: SC
authors.lastname: Smart
authors.forename: V M
authors.initials: VM
authors.lastname: Quantin
authors.forename: P S
authors.initials: PS
authors.lastname: Belton
mesh_terms: D003198:Computer Simulation; D004058:Diffusion; D005502:Food; D005524:Food Technology; D008279:Magnetic Resonance Imaging / Q000379:methods*; D009682:Magnetic Resonance Spectroscopy / Q000379:methods; D016062:Porosity; D014867:Water
chemical_list: D014867:Water