Characteristic Ratios of Light-Water Reactor Fuel and Reactor Type of Spent Fuel

MCCOOR code was used to simulate the nuclide compositions for pressurized water reactor(PWR) fuel and boiling water reactor(BWR) fuel in the pin-cell model at different burnups for two different initial fuel enrichments and full power history, respectively. By analyzing the correlatednuclides ratios of light-water reactor(LWR) fuel, the characteristic ratios of correlated-nuclides for LWR fuel were found, and the characteristic ratios of related nuclides for spent fuel can be used to identify the reactor type.