Development of candu reactor physics calculation system based on WIMS code

A comparison of global reactor parameters obtained by two different methodologies is considered in this paper. The classical CANDU methodology (experimental adjusted) and an alternative calculation system are used. The last is based on WIMS code, PIJXYZ-a 3D integral transport code and DIREN-a 3D diffusion code. Both these codes are PC versions that provide good portability, an easier path to develop new versions. PIJXYZ and DIREN have been developed for CANDU reactor type analysis. The results show fair agreement between CANDU benchmark predictions and our codes system estimations