Toward next JENDL Fission Yield Data and Decay Data

Minato, Futoshi   

We are now developing new decay data using microscopic theoretical models and experimental data newly measured since JENDL/DDF-2015. It includes not only new evaluations of standard decay data information such as half-lives, delayed neutron branching ratios, etc but also theoretically calculated delayed neutron spectra that have not been included in the series of JENDL decay data. We present the detail of the decay data and several results of summation calculation using the decay data and post JENDL/FPY-2011 data produced by TIT group. We also introduce recent theoretical studies for the evaluation of incident neutron energy dependence of fission product yields.