Some Aspects of Nuclear Data Evaluation at Bruyères-le-Chatel

Transport calculations made in different fields of nuclear applications need knowledge of microscopic data, both complete and coherent, which for some nuclei exist as an evaluated nuclear data file. The increasing number of available experimental results are however, insufficient to assure the required qualities of a data set. So we have to use the theory of nuclear reactions. The application varies from the interpolation between energy ranges where there is a large number of experimental results to data prediction for unmeasurable nuclei. The general method followed and the application of nuclear models to obtain evaluated data are reported, and some examples given.