Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8210180 | Applied Radiation and Isotopes | 2014 | 6 Pages |
Abstract
A filter free diffusion set-up was developed for measuring the diffusion of strongly sorbing radionuclides in indurated argillaceous rocks such as Opalinus Clay (OPA) that normally disintegrate when contacted with a solution. Small bore cores drilled parallel to the bedding plane and embedded in epoxy resin were found to be stable and could be used for performing in-diffusion measurements. The method was tested with the diffusion of caesium, spiked with caesium-134, in Opalinus Clay. The profile of Cs in the clay sample was determined with a modified version of the abrasive peeling technique. The diffusion parameters obtained for caesium were in fair agreement with those determined earlier using the classical through-diffusion technique where stainless steel filters were used to confine the samples.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Radiation
Authors
Luc R. Van Loon, Werner Müller,