Estimating the exposure to first receivers from a contaminated victim of a radiological dispersal device detonation

摘要

The threat of a Radiological Dispersal Device (RDD) detonation arouses theconcern of contaminated victims of all ages. The purpose of this study was toinvestigate the dose to a uniformly contaminated five-year old male. It also explores theexposure rates surrounding the victim to be used by first receivers to estimate theirexposure from the victim.The victim was modeled as an anthropomorphic phantom using the BodyBuilderprogram. A thin layer of source material was added to the surface of the phantom?s skinto simulate whole-body contamination. The computer code MCNP5 was used to tallythe doses to the individual organs of the phantom and create a mesh to generate contourexposure rate lines.Using an activity of 37 GBq m-2, the five-year-old victim received an effectivedose 158.23 mSv in one hour. Contour lines were produced that showed the exposurerates around the victims ranging from 0.5 to 10 R/h. The contour exposure-rate contourlines were also generated after the removal of contaminated clothing. Removing thevictim?s clothing reduced the exposure rates by eighty percent.