Determination of uncertainties of methods and data

The report documents the work performed within the Research and Development Task Determination of uncertainties of methods and datafor the physics core design of fast reactors, funded by the German government. It contains a summary of the results of own evaluations of experiments in zero-power facilities and in power reactors. On the basis of these evaluations it was possible to deduce systematic correction factors and uncertainties for the prediction of important core design parameters, such as critical mass, shut-down worth of absorbers and power distribution