The estimation of absorbed dose rates for non-human biota: an extended inter-comparison

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dc.contributor.authorVives i Batlle, Jen_AU
dc.contributor.authorBeaugelin-Seiller, Ken_AU
dc.contributor.authorBeresford, NAen_AU
dc.contributor.authorCopplestone, Den_AU
dc.contributor.authorHoryna, Jen_AU
dc.contributor.authorHosseini, Aen_AU
dc.contributor.authorJohansen, MPen_AU
dc.contributor.authorKamboj, Sen_AU
dc.contributor.authorKeum, DKen_AU
dc.contributor.authorKurosawa, Nen_AU
dc.contributor.authorNewsome, Len_AU
dc.contributor.authorOlysaegers, Gen_AU
dc.contributor.authorVandenhove, Hen_AU
dc.contributor.authorRyufuku, Sen_AU
dc.contributor.authorLynch, SVen_AU
dc.contributor.authorWood, MDen_AU
dc.contributor.authorYu, Cen_AU
dc.date.accessioned2012-05-01T03:58:20Zen_AU
dc.date.available2012-05-01T03:58:20Zen_AU
dc.date.issued2011-05-01en_AU
dc.date.statistics2012-03-01en_AU
dc.description.abstractAn exercise to compare 10 approaches for the calculation of unweighted whole-body absorbed dose rates was conducted for 74 radionuclides and five of the ICRP's Reference Animals and Plants, or RAPs (duck, frog, flatfish egg, rat and elongated earthworm), selected for this exercise to cover a range of body sizes, dimensions and exposure scenarios. Results were analysed using a non-parametric method requiring no specific hypotheses about the statistical distribution of data. The obtained unweighted absorbed dose rates for internal exposure compare well between the different approaches, with 70% of the results falling within a range of variation of +/- 20%. The variation is greater for external exposure, although 90% of the estimates are within an order of magnitude of one another. There are some discernible patterns where specific models over- or under-predicted. These are explained based on the methodological differences including number of daughter products included in the calculation of dose rate for a parent nuclide; source-target geometry; databases for discrete energy and yield of radionuclides; rounding errors in integration algorithms; and intrinsic differences in calculation methods. For certain radionuclides, these factors combine to generate systematic variations between approaches. Overall, the technique chosen to interpret the data enabled methodological differences in dosimetry calculations to be quantified and compared, allowing the identification of common issues between different approaches and providing greater assurance on the fundamental dose conversion coefficient approaches used in available models for assessing radiological effects to biota. © 2011, Springer.en_AU
dc.identifier.citationBatlle, J. V. I., Beaugelin-Seiller, K., Beresford, N. A., Copplestone, D., Horyna, J., Hosseini, A., Johansen, M., Kamboj, S., Keum, D. K., Kurosawa, N., Newsome, L., Olyslaegers, G., Vandenhove, H., Ryufuku, S., Lynch, S. V., Wood, M. D., Yu, C. (2011). The estimation of absorbed dose rates for non-human biota: an extended intercomparison. Radiation and Environmental Biophysics, 50(2), 231-251. doi:10.1007/s00411-010-0346-5en_AU
dc.identifier.govdoc4070en_AU
dc.identifier.issn0301-634Xen_AU
dc.identifier.issue2en_AU
dc.identifier.journaltitleRadiation and Environmental Biophysicsen_AU
dc.identifier.pagination231-251en_AU
dc.identifier.urihttp://dx.doi.org/10.1007/s00411-010-0346-5en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/4204en_AU
dc.identifier.volume50en_AU
dc.language.isoenen_AU
dc.publisherSpringeren_AU
dc.subjectDose ratesen_AU
dc.subjectRadioisotopesen_AU
dc.subjectDosemetersen_AU
dc.subjectAlgorithmsen_AU
dc.subjectGeometryen_AU
dc.subjectDataen_AU
dc.titleThe estimation of absorbed dose rates for non-human biota: an extended inter-comparisonen_AU
dc.typeJournal Articleen_AU
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