Experience of primary chemistry management and countermeasure for dose reduction at Tsuruga nuclear power plant unit2

摘要

We have examined and applied optimization of chemistry management and application of advanced technology for dose rate reduction in Tsuruga-2(PWR).In Tsuruga-2,as the dose rate increased since 11th outage,we have taken countermeasures such as high Li control(maximum Li concentration: 3.5 ppm)in the beginning of cycle and outer oxide layer removal due to low dissolved hydrogen control during shutdown.