Improved modeling of photon observables with FREYA

Abstract

The event-by-event fission model FREYA has been improved, in particular to address deficiencies in the calculation of photon observables. We discuss the improvements that have been made and introduce several new variables, some detector dependent, that affect the photon observables. We show the sensitivity of FREYA to these variables. We then compare the results to the available photon data from spontaneous and thermal neutron-induced fission.

arXiv comment25 pages, 31 figures, version as accepted in Phys. Rev. C

References in corpus (5)

• A 4p BaF2 detector for (n,g) cross section measurements at a spallation neutron source
• Event-by-event evaluation of the prompt fission neutron spectrum from 239Pu(n, f)
• Event-by-event study of neutron observables in spontaneous and thermal fission
• Late Time Emission of Prompt Fission Gamma Rays
• Energy dependence of the prompt $\gamma$-ray emission from the $(d,p)$-induced fission of ${}^{234}{\mathrm{U}}^{\ast }$ and ${}^{240}{\mathrm{Pu}}^{\ast }$

Cited by in corpus (11)

• Review on the progress in nuclear fission
• Theory of Nuclear Fission
• Using excitation-energy dependent fission yields to identify key fissioning nuclei in r-process nucleosynthesis
• Correlated Prompt Fission Data in Transport Simulations
• Angular Momentum of Fission Fragments from Microscopic Theory
• Study of angular momentum effects in fission
• MeV Gamma Rays from Fission: A Distinct Signature of Actinide Production in Neutron Star Mergers
• High resolution measurement of tagged two-neutron energy and angle correlations in Cf-252(sf)
• Correlations between energy and $\gamma$-ray emission in ${}^{239}\mathrm{Pu}(n,\mathrm{f})$
• Parameter Optimization and Uncertainty Analysis of FREYA for Spontaneous Fission
• Microscopic theory of angular momentum distributions across the full range of fission fragments