Physics calculations for DK-2 diagnostic assembly

SKODA Works in Plzen carried out calculations and measurements of thermal, hydraulic and neutron parameters of fuel assemblies during service in cooperation with the Rheinsberg nuclear reactor establishment in the GDR. The methodologies and computer programs for the individual physical parameters are described. Input values for the calculations were the results of macro-calculations conducted for over 9 campaigns of the Rheinsberg power plant and certain geometrical and material configurations. The aim of stage one of the calculations was to test the uniformity of input data used and the suitability of methodologies. Stage two took into consideration the actual configuration of the Rheinsberg power plant core. Certain nonuniformity was found in the input data considered which affected the accuracy of calculations. (M.S.)