Comparison of Positron Emission Tomography and X-ray radiography for studies of physical processes in sandstone

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The migration of moisture in cores of porous homogeneous sandstone of Ledian age (Belgian Eocene, Tertiary) is monitored with PET (Positron Emission Tomography) and micro-focus X-ray radiography. In the case of PET, a nuclear medical imaging technique, 55Co-EDTA (Ethylenediamine Tetraacetic acid) and R-18F were used as water-soluble tracers. The X-ray projection method has evolved from the better-known medical technique and allows a fast and accurate determination of the two-dimensional transient moisture content profiles. Results indicate that both techniques can deliver important information concerning physical processes in situ.


Original languageEnglish
Pages (from-to)134-138
JournalEngineering Geology
Issue number3-4
Publication statusPublished - Feb 2009


  • Positron Emission Tomography, PET, X-ray radiography, Moisture migration, Belgian Ledian sandstone

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