Betson, M. and Barker, J. and Barnes, Paul and Atkinson, T. (2005) Use of synchrotron tomographic techniques in the assessment of diffusion parameters for solute transport in groundwater flow. Transport in Porous Media 60 (2), pp. 217-223. ISSN 0169-3913.
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This technical note describes the use of time-resolved synchrotron radiation tomographic energy dispersive diffraction imaging (TEDDI) and tomographic X-ray fluorescence (TXRF) for examining ion diffusion in porous media. The technique is capable of tracking the diffusion of several ion species simultaneously. This is illustrated by results which compare the movement of Cs+, Ba2+ and La3+ ions from solution into a typical sample of English chalk. The results exhibited somewhat anomalous (non-Fickian) behaviour and revealed heterogeneities (in 1D) on the scale of a few millimetres.
|Additional Information:||The original publication is available at www.springerlink.com|
|Keyword(s) / Subject(s):||porosity structure, diffusion, hydrogeology, synchrotron, X-ray, tomography, tracing|
|School or Research Centre:||Birkbeck Schools and Research Centres > School of Science > Biological Sciences|
|Depositing User:||Sandra Plummer|
|Date Deposited:||28 Mar 2006|
|Last Modified:||17 Apr 2013 12:32|
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