VALIDATION OF THE GROUP PHYSICAL MODULE IN THE NEUTRON ENERGY CALCULATION PROGRAM KINETICS OF KIR2 BASED ON BENCHMARK TEST C5G7

Describes the software used in the calculation, according to the KIR2 program and the algorithms developed by the MAGMA group module (Group modulus taking into account anisotropic scattering). The results of the verification stage of the KIR2 program with a group physical module are presented. For verification, we used the C5G7 mathematical benchmark test, in which the energy field is divided into 7 groups. The results of comparison with the MCNP benchmark program on the effective breeding coefficient, confidence intervals and deviations from the benchmark program are presented. A comparison with other programs based on the Monte Carlo method (VIM and UNKMK and other independent calculations using the MCNP program) is also given. In addition, the use of the calculated data of the KIR2 program with high statistics as reference data for deterministic class codes (ATTILA, MCCG3D, CRX, PARTISN, UNKGRO) and programs based on the Monte Carlo method is presented. The analysis of the effectiveness of using comparison methods by deviations and confidence intervals is presented. The results of the verification phase of the KIR2 program with the MAGMA group module are summarized.