Development of radiation monitoring technology for PWR NPP

Taking Phase I Fujian Fuqing nuclear power plant project as a reference, functions and composition of PWR Nuclear Power Plant radiation monitoring system operated in our country are introduced firstly in this article. Then development tendencies, as well as the design improvements are described in detail in aspects as airborne radioactive material sediment loss in the sampling pipeline, standard calibration methods for airborne sampling monitors, detection technology for leakage of primary circuits, network topology, high humidity noble gas monitoring technology, and site monitoring technology, etc. (authors)