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

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 ( Ethylene diamine Tetra acetic acid...

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Bibliographic Details
Published in:Engineering geology 2009-02, Vol.103 (3), p.134-138
Main Authors: Goethals, Patrick, Volkaert, Anneke, Jacobs, Patric, Roels, Staf, Carmeliet, Jan
Format: Article
Language:English
Subjects:
Belgian Ledian sandstone
Moisture migration
PET
Positron Emission Tomography
X-ray radiography
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Summary: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 ( Ethylene diamine Tetra acetic 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.
ISSN:0013-7952
1872-6917
DOI:10.1016/j.enggeo.2008.06.015