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放射性核素浓度的确定是放射性事故应急救援和辐射防护等工作的基础和前提,是放射性事故应急救援的重要组成部分.在一维扩散模型的基础上,建立了放射性核素瞬时污染点源三维扩散模型、连续污染点源三维扩散模型、连续污染点源三维扩散稳态模型,并编写程序,实现了对放射性核素污染扩散的快速仿真分析,较好模拟了水体中放射性核素的扩散趋势.研究结果在核事故应急救援过程中,可为相关部门制定救援方案及应急决策提供科学依据.
The determination of radionuclide concentration is the basis and prerequisite for emergency rescue and radiation protection of radioactive accident and is an important part of emergency rescue in radiological accident.Based on the one-dimensional diffusion model, the three-dimensional Diffusion model, continuous pollution point source three-dimensional diffusion model, continuous pollution point source three-dimensional diffusion steady-state model, and the preparation of the program to achieve a rapid simulation analysis of radionuclide pollution diffusion, better simulate the water body radionuclide diffusion trend The research results can provide a scientific basis for the relevant departments to formulate rescue plans and emergency decisions during the emergency rescue of nuclear accidents.