New formula for the spectrum of prompt neutrons from fission

Neutron Thermal Cross Sections, Westcott Factors, Resonance Integrals, Maxwellian Averaged Cross Sections and Astrophysical Reaction Rates Calculated from Major Evaluated Data Libraries

“…then kT =1420 keV for the approximate Maxwellian temperature [78]. Obviously, current approximation has its limitations and the more advanced formalisms have been proposed [79][80][81]. However, this temperature data are consistent with the 13 (n,γ) and 17 (n,fission) EXFOR data sets [32].…”

“…Fig. 2 shows a good agreement between two calculations with the exception of 79 Se where, due to lack of experimental data, ENDF/B-VII.0 evaluated capture cross sections have problem with merging of low-and high-energy data.…”