Nuclear Techniques ›› 2018, Vol. 41 ›› Issue (3): 30603-030603.doi: 10.11889/j.0253-3219.2018.hjs.41.030603

• NUCLEAR ENERGY SCIENCE AND ENGINEERING • Previous Articles     Next Articles

Nuclear accident consequence prediction and assessment system and its applications

WANG Ruiying1, FENG Wendong2, WANG Shaowei1, LIN Quanyi1, LI Wenting1   

  1. 1. Nuclear and Radiation Safety Center, Ministry of Environmental Protection, Beijing 100082, China;
    2. China Institute for Radiation Protection, Taiyuan 030006, China
  • Received:2017-09-20 Revised:2017-12-04 Online:2018-03-10 Published:2018-03-14
  • Supported by:
    Supported by Public Welfare Special Research on Industry (No.201309058)

Abstract: [Background] The nuclear accident consequence prediction and assessment decision system (NACPADS) is developed by Nuclear and Radiation Safety Center of Ministry of Environmental Protection of the People's Republic of China for quick and accurate evaluation of the consequences of nuclear accidents. [Purpose] This study aims to assess and analyze the radioactive effect in accident scene for nuclear power plant accident emergency exercise in China. [Methods] Three modules, i.e., fine evaluation, rapid evaluation, and dose estimation based on radiation monitoring results, are implemented in NACPADS. The detailed evaluation module possesses funtionalities of the source input, meteorological, atmospheric diffusion and dose calculation, protection action and its consequence calculation etc., thus can be used to give detailed evaluation results. The rapid evaluation module is possessed of simple atmospheric diffusion and dose calculation for quick and simple evaluation results. According to the radiation monitoring results, the dose module is designed for dose calculation using field radiation monitoring data. [Results] The calculation results showed that NACPADS was suitable for early consequence assessment of nuclear accidents. [Conclusion] NACPADS can quickly provide emergency protection actions such as concealment, evacuation and iodine, and provide necessary support for the emergency decision-making of China's nuclear safety regulators.

Key words: NACPADS, Nuclear accident, Consequence evaluation

CLC Number: 

  • TL72