Dependence of average total kinetic energy of fission fragments on the excitation energy of the compound nucleus

The fast neutron induced fission of $^{240}$Pu and $^{242}$Pu

“…and Sedykh model [45,46] to our experimental data for 240,242 Pu (n,f). The Denisov and Sedykh model well describes our data at energies where E * ≥ B n .…”

“…Denisov and Sedykh developed a simple model within the average total kinetic energy TKE framework to highlight the energy dependence of the average kinetic energies of the fission fragments [45,46]. The two key dependencies in the fissioning system upon which the Denisov and Sedykh model is based are:…”

“…The following equations explore these two dependencies and describe how we used the model derived by Denisov and Sedykh to fit our 240,242 Pu(n,f) measurements. (The complete derivation for the expression for the dependence of the average total kinetic energy TKE of fission fragments on the excitation energy of the compound nucleus can be found in [45,46]. )…”

“…The values of the stiffness parameter C for the fragment asymmetry in the compound nuclei 241,243 Pu were 37.1 and 49.7 MeV respectively. Finally, the average total kinetic energy TKE is given by [46] T…”

“…In Figure 10 we compare the dependence of the average total kinetic energy TKE on incident neutron energy derived from the Denisov A (E * ) as a function of A for 240,242 Pu(n,f), evaluated using equation 12. [45,46]. (Color online)…”