Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/30776
Appears in Collections:Biological and Environmental Sciences Journal Articles
Peer Review Status: Refereed
Title: Characterising radium-226 particles from legacy contamination to support radiation dose assessments
Author(s): McGuire, Corynne
Dale, Paul
Copplestone, David
Wilson, Clare
Tyler, Andrew
Contact Email: corynne.mcguire@stir.ac.uk
Issue Date: Feb-2020
Citation: McGuire C, Dale P, Copplestone D, Wilson C & Tyler A (2020) Characterising radium-226 particles from legacy contamination to support radiation dose assessments. Journal of Environmental Radioactivity, 212, Art. No.: 106127. https://doi.org/10.1016/j.jenvrad.2019.106127
Abstract: Radioactive particles are physically discrete sources of radioactivity that have been released into the environment as a result of past emergencies, events and practices. As the release of radioactive particles is often unplanned, the source term has not been characterised, and the potential radiation doses have not been prospectively assessed. If a plausible exposure pathway exists, radioactive particles in the environment may present a hazard to the public depending on their radiological, physical and chemical characteristics. Given their physically discrete nature, standard assessment approaches such as dispersion and transfer modelling of liquid and gaseous radioactive releases, are not appropriate for radioactive particles. The challenge for national regulatory authorities is to calculate potential radiation doses from unplanned releases of radioactive particles into the environment, assess whether the doses are relevant to radiological protection and decide whether actions are required to reduce potential doses. To address this challenge, this paper presents the approach being adopted to radiologically, physically and chemically characterise Ra-226 particles from a contaminated legacy site using gamma spectrometry, optical macroscopy and SEM-EDS. The use of particle characterisation data to support radiation dose assessments is discussed and consideration is given to radioactive particles in the context of radiological protection.
DOI Link: 10.1016/j.jenvrad.2019.106127
Rights: This item has been embargoed for a period. During the embargo please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study. Accepted refereed manuscript of: McGuire C, Dale P, Copplestone D, Wilson C & Tyler A (2020) Characterising radium-226 particles from legacy contamination to support radiation dose assessments. Journal of Environmental Radioactivity, 212, Art. No.: 106127. DOI: https://doi.org/10.1016/j.jenvrad.2019.106127 © 2019, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/
Licence URL(s): http://creativecommons.org/licenses/by-nc-nd/4.0/

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