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Workers’ behavior during the dynamic process of nuclear decommissioning is a complex phenomenon. In a nuclear environment, some workers may spontaneously and inadvertently engage in unsafe behavior which has high risks of serious injury and accident. In this paper, we determined and classified some of the unsafe behavior of workers in the nuclear decommissioning process. The evaluation factor system and the AHP model were established. The safety of behavior of virtual human, a trainee controlled in digital simulation, was quantified by fuzzy evaluation method. A primary virtual training method to reduce the chance of unsafe behavior was proposed and a safety training simulation software was developed. The feasibility of the proposed methods was tested through a hypothetical case. [ABSTRACT FROM AUTHOR]

In this paper, virtual simulation was taken as an auxiliary tool for radiation protection, dose assessment. So radiation protection using virtual reality was taken as a research subject. A simple voxel modeling for virtual human was proposed. Based on the voxel model, dose assessment and visualization methods for virtual human in radiation environment were proposed. The parallel technology contributed to dose assessment in real-time. Based on dose assessment and visualization methods, a radiation protection method using virtual simulation was developed for the preparation of working in radiation environment. These validation tests demonstrate these methods make it possible to plan for the exposure dose to workers in radiation environment using virtual simulation. [ABSTRACT FROM AUTHOR]