Calculation of effective point kinetics parameters in the Serpent 2 Monte Carlo code

•The IFP method was implemented in Serpent 2 at the Politecnico di Milano.•The method is intended for calculating adjoint-weighted point kinetics parameters.•Validation was performed by comparison to MCNP5 and experimental results.•The results showed good agreement in 31 critical configurations.

This paper presents the methodology developed for the Serpent 2 Monte Carlo code for the calculation of adjoint-weighted reactor point kinetics parameters: effective generation time and delayed neutron fractions. The calculation routines were implemented at the Politecnico di Milano, and they are based on the iterated fission probability (IFP) method. The developed methodology is mainly intended for the modeling of small research reactor cores, and the results are validated by comparison to experimental data and MCNP5 calculations in 31 critical configurations.