Bayesian estimation of a source term of radiation release with approximately known nuclide ratios

0458895 - ÚTIA 2017 RIV DE eng A - Abstract
Tichý, Ondřej - Šmídl, Václav - Hofman, Radek
Bayesian estimation of a source term of radiation release with approximately known nuclide ratios.
Geophysical Research Abstracts. Göttingen: European Geosciences Union, 2016. ISSN 1607-7962.
[EGU General Assembly 2016. 18.04.2016-22.04.2016, Vienna]
R&D Projects: GA MŠMT(CZ) 7F14287
Institutional support: RVO:67985556
Keywords : inverse modeling * Variational Bayes method
Subject RIV: BB - Applied Statistics, Operational Research
http://library.utia.cas.cz/separaty/2016/AS/tichy-0458895.pdf

We are concerned with estimation of a source term in case of an accidental release from a known location, e.g. a power plant. Usually, the source term of an accidental release of radiation comprises of a mixture of nuclide. The gamma dose rate measurements do not provide a direct information on the source term composition. However, physical properties of respective nuclide (deposition properties, decay half-life) can be used when uncertain information on nuclide ratios is available, e.g. from known reactor inventory.
Permanent Link: http://hdl.handle.net/11104/0259705