TY - JOUR PY - 2014// TI - A fast and simple approach for the estimation of a radiological source from localised measurements after the explosion of a radiological dispersal device JO - Radiation protection dosimetry A1 - Woda, C. A1 - Kaiser, J. C. A1 - Urso, L. A1 - Prouza, Z. A1 - Kuca, P. A1 - Hulka, J. A1 - Helebrant, J. SP - 453 EP - 460 VL - 158 IS - 4 N2 - After an explosion of a radiological dispersal device (dirty bomb), decision-makers need to implement countermeasures as soon as possible to minimise the radiation-induced risks to the population. In this work, the authors present a tool, which can help providing information about the approximate size of source term and radioactive contamination based on a Gaussian Plume model with the use of available measurements for liquid or aerosolised radioactivity. For two-field tests, the source term and spatial distribution of deposited radioactivity are estimated. A sensitivity analysis of the dependence on deposition velocity is carried out. In case of weak winds, a diffusive process along the wind direction is retained in the model.

Language: en

LA - en SN - 0144-8420 UR - http://dx.doi.org/10.1093/rpd/nct263 ID - ref1 ER -