High precision measurements on fission-fragment de-excitation

摘要: Abstract In recent years nuclear fission has gained renewed interest both from the energy community and in basic science. The first, represented by OECD Nuclear Energy Agency, expressed need for more accurate cross-section fragment yield data safety assessments of Generation IV reactor systems. science modelling made much progress describing de-excitation mechanism neutron-rich isotopes, e.g. produced fission. Benchmarking different models require a precise experimental on prompt neutron γ -ray emission, multiplicity, average per particle total dissipated fission, preferably as function fission-fragment mass kinetic energy. A collaboration scientists JRC Geel (formerly known IRMM) other institutes took lead establishing dedicated measurement programme characteristics, which triggered even activities around world. This contribution presents new advanced instrumentation methodology we use to generate high-precision spectral will give flavour future needs opportunities.