Use of synchrotron tomographic techniques in the assessment of diffusion parameters for solute transport in groundwater flow
Use of synchrotron tomographic techniques in the assessment of diffusion parameters for solute transport in groundwater flow
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.
porosity structure, diffusion, hydrogeology, synchrotron, X-ray, tomography, tracing
217-223
Betson, Mark
6d5826e1-3301-47fa-ad7d-e8020954ca35
Barker, John
33bf9dec-cc9b-451c-8192-46099e316b6d
Barnes, Paul
da05324f-a79f-40cb-bfd0-e2025f58920a
Atkinson, Tim
9ea72b31-61a8-4be3-8e6d-2dbfba82ce73
August 2005
Betson, Mark
6d5826e1-3301-47fa-ad7d-e8020954ca35
Barker, John
33bf9dec-cc9b-451c-8192-46099e316b6d
Barnes, Paul
da05324f-a79f-40cb-bfd0-e2025f58920a
Atkinson, Tim
9ea72b31-61a8-4be3-8e6d-2dbfba82ce73
Betson, Mark, Barker, John, Barnes, Paul and Atkinson, Tim
(2005)
Use of synchrotron tomographic techniques in the assessment of diffusion parameters for solute transport in groundwater flow.
Transport in Porous Media, 60 (2), .
(doi:10.1007/s11242-004-5737-0).
Abstract
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.
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Published date: August 2005
Keywords:
porosity structure, diffusion, hydrogeology, synchrotron, X-ray, tomography, tracing
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Local EPrints ID: 48129
URI: http://eprints.soton.ac.uk/id/eprint/48129
ISSN: 0169-3913
PURE UUID: ce219fc7-1664-4a09-89f6-9760c7430665
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Date deposited: 29 Aug 2007
Last modified: 15 Mar 2024 09:43
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Author:
Mark Betson
Author:
Paul Barnes
Author:
Tim Atkinson
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