Analyzing and updating nuclear decay data evaluations to improve the IRDFF Decay sub-library

The main goal of this research as a part of the IAEA CRP F41031 is to test, validate and improve the IRDFF Decay sub-library. The nuclear decay data of interest for dosimetry applications are radionuclide half-lives, decay modes, energy and intensity of prominent radiation used for the detection of the dosimetry reaction products. The work program has included for radionuclides – dosimetry neutron reaction residuals: - preliminary analysis of available evaluated decay data containing in the Evaluated Nuclear Structure Data File (ENSDF) and also on the Decay Data Evaluation Project (DDEP) web site, - testing the evaluated decay data containing in the file irdf2012.endf (source on Oct 2012) for validity and determination of the list of radionuclides for which there are available new published experimental data and/or important compilations, - with using the DDEP methodology, analyzing decay schemes and the full re-evaluation/update of decay data for the radionuclides from the above list, - introducing small update amendments where needed to the existing sets of NDS/DDEP evaluated data which mainly retain their validity, representation of the evaluated decay data for all the considered radionuclides in the ENSDF formatting to transfer them into the ENDF format.