Construction of radiation index evaluation model for nuclear power plants

Radiation index evaluation model establishes a standard radiation monitoring method to obtain radiation data of typical radiation spots in reactor buildings, then calculates and analyzes the radiation index to evaluate the fluctuation law of radiation level. The practice proved that the radiation index evaluation model can accurately show the fluctuation trend of radiation level of units. The radiation index evaluation model has made a great effort in radiation protection management, radiation dose control, abnormal radiation events' investigation and source analysis, it has practical value and provides nuclear peers with ideas and references on radiation protection management. (authors)