NEUTRON-INDUCED FISSION MEASUREMENTS AT THE DANCE AND LSDS FACILITIES AT LANL

摘要

New results from neutron-induced fission measurements performed at the Detector for Advanced Neutron Capture Experiments (DANCE) and Lead Slowing Down Spectrometer (LSDS) are presented. New correlated data on prompt-fission γ-ray (PFG) distributions were measured using the DANCE array for resonant neutron-induced fission of ~(233)U, ~(235)U and ~(239)Pu. The deduced properties of PFG emission are presented using a simple parametrization. An accurate knowledge of fission γ-ray spectra enables us to analyze the isomeric states of ~(236)U created after neutron capture on ~(235)U. We briefly discuss these new results. Finally, we review details and preliminary results of the challenging ~(237)U(n,f) cross section measurement at the LSDS facility.