Prompt fission neutron multiplicity and spectrum evaluation for 235U(n,f) in the frame of the multi-modal fission model

Event-by-Event Modeling of Prompt Neutrons and Photons From Neutron-Induced and Spontaneous Fission With Freya

“…In Refs. [20,21], this relation is hardwired in and assumed to hold for E γ (A) and ν(A). They also use average values of the neutron separation energies and assume only a limited number of fragment pairs [21] and are thus not true event-by-event calculations.…”

Fluctuations of fission data in the resonances with a channel-mode formalism

“…Experimental T KE were corrected for prefission γ using equation (4) with (∂ T KE /∂E * ) = −0.8874 extrapolated from the experimental values of T KE/(T KE + T XE) 2 at higher energy measured by Hambsch et al [11].…”

Calculation of prompt fission neutron spectrum for 233 U(n, f) reaction by the semi-empirical method

“…The Los Alamos (LA) model [2] is one of the most successful models for predicting the prompt fission neutron spectrum with an assumption of the same triangular-shaped initial nuclear temperature distribution for both light and heavy fragments, and was originally developed for 235 U and 239 Pu. Based on the LA model, the multi-modal random neck-rupture model [3,4] has been applied to some calculations of prompt neutron spectrum of several actinide nuclei isotopes by Ohsawa [5,6], Hambach [7][8][9], Vladuca [10], and Zheng [11] et al But most of these calculations are for 235,238 U(n, f) and 239 Pu(n, f) reactions, only the calculation of Ref. [11] is for 233 U(n, f) reaction, but the nuclear temperature is still an assumption of simple triangular shaped.…”