PHYSICAL VERIFICATION TEST OF C-14 TARGET OF QINSHAN PRESSURIZED HEAVY WATER REACTOR(PHWR) AFTER FIRST REPLACEMENT

抄録

In order to produce C-14 isotope, the first batch of commercial reactor C-14 irradiation production targets were put into the reactor and started large-scale production during the outage 211 of unit 2 of Qinshan 3rd nuclear power plant. In order to verify whether the newly replaced adjuster rods after C-14 target replacement meet the design requirements and ensure that the reactor with the new adjuster rods is operating in a safe state, a series of physical verification tests were organized and implemented, including the adjuster rods reactivity value measurement test and core flux distribution measurement test, etc. After the above tests, it is confirmed that the performance of the new adjuster rods is comparable to that of the original adjuster rods, and the reactor with the new adjuster rods is operating in a safe state.