In-situ X-ray fluorescence to investigate iodide diffusion in opalinus clay: Demonstration of a novel experimental approach
| Autor: | Olivier X. Leupin, Tim Grundl, Luc R. Van Loon, Thomas Gimmi, Senecio Schefer, A. Jakob, Pierre De Cannière, Max Jaquenoud, W. T. Elam, Veerle Cloet |
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| Přispěvatelé: | Physiotherapy, Human Physiology and Anatomy, Human Physiology and Sports Physiotherapy Research Group |
| Rok vydání: | 2021 |
| Předmět: |
In situ
Iodides/analysis Environmental Engineering X-RAYS Health Toxicology and Mutagenesis Nuclear engineering 0208 environmental biotechnology X-ray fluorescence 02 engineering and technology 010501 environmental sciences 01 natural sciences Fluorescence Diffusion Data acquisition 550 Earth sciences & geology Environmental Chemistry Diffusion (business) Radioactive Waste/analysis 0105 earth and related environmental sciences Alternative methods Public Health Environmental and Occupational Health General Medicine General Chemistry Iodides Pollution Experimental research 020801 environmental engineering Radioactive Waste Clay Environmental science Aluminum Silicates |
| Zdroj: | Chemosphere. 269:128674 |
| ISSN: | 0045-6535 |
| DOI: | 10.1016/j.chemosphere.2020.128674 |
| Popis: | During the last two decades, the Mont Terri rock laboratory has hosted an extensive experimental research campaign focusing on improving our understanding of radionuclide transport within Opalinus Clay. The latest diffusion experiment, the Diffusion and Retention experiment B (DR-B) has been designed based on an entirely different concept compared to all predecessor experiments. With its novel experimental methodology, which uses in-situ X-ray fluorescence (XRF) to monitor the progress of an iodide plume within the Opalinus Clay, this experiment enables large-scale and long-term data acquisition and provides an alternative method for the validation of previously acquired radionuclide transport parameters. After briefly presenting conventional experimental methodologies used for field diffusion experiments and highlighting their limitations, this paper will focus on the pioneer experimental methodology developed for the DR-B experiment and give a preview of the results it has delivered thus far. |
| Databáze: | OpenAIRE |
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