Radiation source rate estimation through data assimilation of gamma dose rate measurements for operational nuclear emergency response systems

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dc.contributor.authorTsiouri, Ven_AU
dc.contributor.authorAndronopoulos, Sen_AU
dc.contributor.authorKovalets, Ien_AU
dc.contributor.authorDyer, LLen_AU
dc.contributor.authorBartzis, JGen_AU
dc.date.accessioned2014-04-23T05:51:40Zen_AU
dc.date.available2014-04-23T05:51:40Zen_AU
dc.date.issued2012-01-01en_AU
dc.date.statistics2014-04-23en_AU
dc.description.abstractThis paper presents an evaluation of an innovative data assimilation method that has been recently developed in NCSR Demokritos for estimating an unknown emission rate of radionuclides in the atmosphere, with real-scale experimental data. The efficient algorithm is based on the assimilation of gamma dose rate measured data in the Lagrangian atmospheric dispersion model DIPCOT and uses variational principles. The DIPCOT model is used in the framework of the nuclear emergency response system (ERS) RODOS. The evaluation is performed by computational simulations of dispersion of Ar-41 that was emitted routinely by the Australian Nuclear Science and Technology Organisation’s (ANSTO) previous research reactor, HIFAR, located in Sydney, Australia. In this paper the algorithm is evaluated against a more complicated Radiation source rate estimation through data assimilation 387 case than the others used in previous studies: There was only one monitoring station available each day and the site topography is characterised as moderately complex. Overall the estimated release rate approaches the real one to a very satisfactory degree as revealed by the statistical indicators of errors. © 2012 Inderscience Enterprises Ltd.en_AU
dc.identifier.citationTsiouri, V., Andronopoulos, S., Kovalets, I., Dyer, L. L., & Bartzis, J. G. (2012). Radiation source rate estimation through data assimilation of gamma dose rate measurements for operational nuclear emergency response systems. Paper presented at HARMO13 - 1-4 June 2010, Paris, France, 13th Conference on Harmonisation within Atmospheric Disperson Modelling for Regulatory Purposes. In International Journal of Environment and Pollution, 50(1-4), 386-395. doi:10.1504/IJEP.2012.051209en_AU
dc.identifier.conferenceenddate4 June 2010en_AU
dc.identifier.conferencenameHARMO13, 13th Conference on Harmonisation within Atmospheric Disperson Modelling for Regulatory Purposesen_AU
dc.identifier.conferenceplaceParis, Franceen_AU
dc.identifier.conferencestartdate1 June 2010en_AU
dc.identifier.govdoc4805en_AU
dc.identifier.issn0957-4352en_AU
dc.identifier.issue1-4en_AU
dc.identifier.journaltitleInternational Journal of Environment and Pollutionen_AU
dc.identifier.pagination386-395en_AU
dc.identifier.urihttp://dx.doi.org/10.1504/IJEP.2012.051209en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/5474en_AU
dc.identifier.volume50en_AU
dc.language.isoenen_AU
dc.publisherInderscience Enterprises Ltden_AU
dc.subjectRadiation sourcesen_AU
dc.subjectRadioisotopesen_AU
dc.subjectVariational methodsen_AU
dc.subjectLagrangian field theoryen_AU
dc.subjectDispersionsen_AU
dc.subjectGamma radiationen_AU
dc.titleRadiation source rate estimation through data assimilation of gamma dose rate measurements for operational nuclear emergency response systemsen_AU
dc.typeConference Paperen_AU
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