KINETICS PARAMETER ESTIMATION FOR INITIALLY SUBCRITICAL SYSTEMS IN THE MONTE CARLO FIXED SOURCE CALCULATIONS

摘要

The point kinetics model for an initially subcritical system such as the accelerator-drivensystem (ADS) requires the adjoint function and the adjoint-weighted kinetics parameters to beestimated in its nominal subcritical state with external sources. Monte Carlo (MC) algorithmsare newly developed to calculate the kinetics parameters for the subcritical system byestimating the adjoint function in the MC fixed source calculations. The developed algorithmis verified through a simple two-group problem by comparing with analytic solutions.