Analysis of the Rowlands uranium oxide pin-cell benchmark with an updated wims-d library

The Rowla.nds uranium oxide light water reactor pin-cell numerical benchmark results from the literature were analysed to obtain a self consistent set which can be used as reference. Tht! materials relevant to the benchmark from the JEF-2.2 evaluated nuclear data file were processed with the NJOY code and the WIMS-D multigroup library was updated. An input for WIMSD-5A was prepared. Integral parameters, which include reaction rates and mU:ltiplication factors for the pin cell at different temperatures, moderator density and leakage were calculated. The results were compared to the previously defined reference values