Influence of Prompt Neutron Emission on the Final Distribution of Mass, Kinetic Energy, and Charge of Fragments from Actinide Fission

Abstract

In nuclear fission of actinides samples, the fragments emit prompt neutrons before they reach the detectors. This chapter shows the effects of that emission on the final distribution of mass, charge, kinetic energy, and prompt neutron multiplicity of fragments. Those effects depend on the experimental technique. This chapter shows the curve of the maximal value of total kinetic energy as a function of primary fragment mass for the reactions 233U(nth, f), 235U(nth, f), and 239Pu(nth, f) which reflect the deformation properties of fragments in their ground states and the Coulomb effect on their scission configurations. The odd–even effects on the cold fission region will be also presented.