Parker, Andrew J. and Joyce, Malcolm J. and Boxall, Colin (2016) Radiometric detection of non-radioactive caesium flux using displaced naturally abundant potassium. Journal of Radioanalytical and Nuclear Chemistry, 307 (1). pp. 769-776. ISSN 0236-5731
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Abstract
We report on a method that allows for the radiometric detection of non-radioactive caesium by the measurement of potassium ions displaced from an ion exchange barrier. Electrokinetic transport of K+ and Cs+ through concrete samples was measured using a bespoke scintillation detector to monitor electrolyte concentrations. Results show experimental ionic flux and diffusion parameters of non-active caesium (~1 × 10−5 mol m−3) were consistent with those recorded for potassium and also with values reported in relevant literature. This work demonstrates a novel concept that can be applied to proof-of-concept studies that help develop the next generation of nuclear decommissioning technologies.