“Point by Point” model calculation of prompt neutron emission data for 248Cm(SF) and 244Cm(SF)

Abstract

This work is devoted to the modeling of the prompt neutron emission in the spontaneous fission of 248,244Cm. The Point by Point model calculations of relevant quantities (like: the multi-parametric matrix ν( A, TKE), the fission fragment multiplicity as a function of fragment mass (usually named sawtooth) ν( A), fission fragment pair multiplicity as a function of total excitation energy ν pair(TXE), total average prompt neutron multiplicity 〈 ν p 〉 and spectra N( E), total average multiplicity as a function of the total kinetic energy 〈 ν p 〉 (TKE) describe very well all existing experimental data. For the first time Point by Point model calculations of the probability of emission of 1, 2, 3 , … , n prompt neutrons P( ν), in very good agreement with the experimental data, are reported for 248,244Cm(SF) as well as for 252Cf(SF) (for validation purposes).