Nuclear Analysis on the HAMP-1 Irradiation Test Using the McCARD

The HANARO is supporting domestic nuclear research activities such as nuclear fuel and material irradiation tests, isotope production, and neutron beam research. WIMS, VENTURE, HELIOS, and MCNP have been used to support the core analysis needs of various fields. Among the various fields of application, the nuclear fuel irradiation test requires a more accurate core analysis. This paper presents the results of the McCARD calculations and the comparison with experiments on the first U-Mo irradiation test using the HAMP-1 test rig. In HANARO, the irradiation test of HAMP-1 was completed for the verification of the U-Mo fuel to be used in the KJRR. Core calculations were performed using the McCARD code. To simulate the burnt HANARO core, the core follow-up calculation was started by using the burn-up distribution of the HANARO fuel management system before the irradiation test. The errors of the criticality calculations during the cycles with HAMP-1 irradiated were maintained within 5mk. The burn-up measurement results by the chemical method and the calculation results were found to be in good agreement with each other.