Application and Analysis of On-line Fuel Damage Detection System in Nuclear Power Plant

The on-line fuel damage detection system (FDDS) developed by the China Institute of Atomic Energy was installed respectively in two domestic nuclear power units. By continuously monitoring and analyzing fuel damage in two nuclear power units, the results show that FDDS plays a good role in on-line measurement of primary circuit radioactive nuclide activity concentration and fuel damage monitoring in these plants, and makes up for the shortcomings of chemical sampling analysis method.