Research and application of the computer real-time dose assessment system in Qinshan Nuclear Power Plant

The choice of assessment method and purpose of setting computer real-time dose assessment system is introduced. The system is one of the special emergency facilities in QNPP (300 MW set). According to the environmental characteristics around Qinshan Nuclear Power Plant, the dynamic puff model to emulate the continuous plume and three dimensions wind model are selected. It describes the model and parameters of computer real-time dose assessment system (CRTDAS), the composition and development of the hardware and software, the assessment progresses, and main functions. It includes: acquiring and displaying of meteorological parameters, environmental radiation parameters and plant safety parameters, describing the plant status and estimating accident source terms, assessing the environmental consequence et. al. Finally, the applications of the assessment system, emulating calculations, practices and some developing aspects are also introduced and some rational proposals for the next development in the field are put forward. (4 refs., 12 figs., 10 tabs.)