Deterministic Fission Matrix Acceleration of Monte Carlo Calculations

摘要

An approach for accelerating MC criticality calculations using a low-order approximation to the transport equation has been introduced. This work generalizes previous work in Ref. and offers advantages relative to other fission matrix acceleration schemes. Numerical experiments indicate that the method has the potential to greatly reduce the number of inactive cycles required to converge the fission source and to reduce the likelihood of undersampling important regions of the problem. These results are still very preliminary and significantly more work is needed to fully qualify the behavior of the method for more challenging problems.