The simulation method based on skeleton animation model and organ-monitoring-points for exposure dose assessment to workers in radioactive environments

Abstract

The objective of this paper is to develop a dose assessment method that takes into account the working postures and the non-uniformity of the radiation fields to ensure the radiation safety of workers in nuclear facilities. To simulate different working postures, the working posture models were developed with skeletal animation technology. And to assess the exposure dose to workers in a non-uniform radiation field, virtual reality technology was used to develop a model of a hypothetical human with organ-monitoring-points distributed in his/her organs and tissues. And then a dose assessment method based on skeletal animation technology and the organ-monitoring-points was developed. Simulation results were compared with that of MCNP, the point model and the organ’s minimum bounding box model, and they show that the method is effective in providing dose assessments to workers, taking into consideration the working postures and non-uniformity of radiation environments.