Validation of nuclear data for heavy water reactor lattices using WIMS and WIMKAL-88 nuclear data libraries

Integral measurements of various types provide valuable data to assess the adequacy of the cross sections used in predicting the nuclear characteristics of reactors. In this context measurements of reactivity, relative reaction rates and neutron balance assume fundamental importance. We have analysed these parameters for heavy water moderated systems by using WIMS and WIMKAL-88 cross section libraries both of which have 69 energy groups. The analysis has been carried out by the lattice analysis code CLUB. It employs a method based on combination of interface current formalism and collision probability (CP) method. 6 refs, 1 tab