Autor: |
Jan Carmeliet, Patrick Goethals, Patrick Jacobs, Anneke Volkaert, Staf Roels |
Rok vydání: |
2009 |
Předmět: |
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Zdroj: |
Engineering Geology. 103:134-138 |
ISSN: |
0013-7952 |
DOI: |
10.1016/j.enggeo.2008.06.015 |
Popis: |
The migration of moisture in cores of porous homogeneous sandstone of Ledian age (Belgian Eocene, Tertiary) is monitored with PET ( P ositron E mission T omography) and micro-focus X-ray radiography. In the case of PET, a nuclear medical imaging technique, 55 Co-EDTA ( E thylene d iamine T etra a cetic acid) and R- 18 F 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 . |
Databáze: |
OpenAIRE |
Externí odkaz: |
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