Results of Testing the Cross Section and Related Uncertainty Data to BE Used in the New International Reactor Dosimetry File IRDF-2002

The Nuclear Data Section of the International Atomic Energy Agency started a project in 2001 for updating the old reactor dosimetry file IRDF-90. The data for the new library (entitled IRDF-2002) should derive from tested, up-to-date reactor dosimetry files or evaluations. Two new reactor dosimetry libraries have been published from the time of releasing IRDF-90: JENDL/D-99 (Japan) and RRDF-98 (Russia). As the uncertainties of the cross sections in the new libraries are significantly smaller for a number of reactions, and as, furthermore, several new reactions can be found in these files, as compared with IRDF-90, they can be considered as potential sources for the up-dating procedure. Therefore, the content of these files has been analysed, tested and, intercompared with the corresponding data of IRDF-90. This paper presents the results from this comparison and, gives a proposal concerning the cross sections to be included in IRDF-2002.