# Multi-layers grid environment modeling for nuclear facilities: A virtual simulation-based exploration of dose assessment and dose optimization

• Jia, Ming (State Key Laboratory of Nuclear Power Safety Monitoring Technology and Equipment) ;
• Li, Mengkun (School of Electric Power, South China University of Technology) ;
• Mao, Ting (State Key Laboratory of Nuclear Power Safety Monitoring Technology and Equipment) ;
• Yang, Ming (School of Electric Power, South China University of Technology)
• Accepted : 2019.10.31
• Published : 2020.05.25

#### Abstract

Dose optimization for Radioactive Occupational Personal (ROP) is an important subject in nuclear and radiation safety field. The geometric environment of a nuclear facility is complex and the work area is radioactive, so traditional navigation model and radioactive data field cannot form an effective environment model for dose assessment and dose optimization. The environment model directly affects dose assessment and indirectly affects dose optimization, this is an urgent problem needed to be solved. Therefore, this paper focuses on an environment model used for Dose Assessment and Dose Optimization (DA&DO). We designed a multi-layer radiation field coupling modeling method, and then explored the influence of the environment model to DA&DO by virtual simulation. Then, a simulation test is done, the multi-layer radiation field coupling model for nuclear facilities is demonstrated to be effective for dose assessment and dose optimization through the experiments and analysis.