Calculation of fission observables through event-by-event simulation

Abstract

The increased interest in more exclusive fission observables has demanded more detailed models. We present here a new computational model, FREYA, that aims to meet this need by producing large samples of complete fission events from which any observable of interest can then be extracted consistently, including arbitrary correlations. The various model assumptions are described and the potential utility of the model is illustrated by means of several novel correlation observables.

11 pages, 12 eps figures

References in corpus (1)

• Nuclear Ground-State Masses and Deformations

Cited by in corpus (24)

• Description of Induced Nuclear Fission with Skyrme Energy Functionals: I. Static Potential Energy Surfaces and Fission Fragment Properties
• Fission Fragment Decay Simulations with the CGMF Code
• Nuclear Fission Dynamics: Past, Present, Needs, and Future
• Generation of fragment angular momentum in fission
• Correlated Prompt Fission Data in Transport Simulations
• Final excitation energy of fission fragments
• 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
• Event-by-event study of prompt neutrons from 239Pu(n,f)
• Study of angular momentum effects in fission
• Prompt Fission Neutrons in the ${}^{239}$Pu($n,f$) Reaction
• Correlation studies of fission fragment neutron multiplicities
• Coupled fission fragment angular momenta
• Spatial orientation of the fission fragment intrinsic spins and their correlations
• Near-barrier Photofission in ${}^{232}$Th and ${}^{238}$U
• Structures in the energy distribution of the scission neutrons: finite neutron-number effect
• Structure in the Event-by-Event Energy-Dependent Neutron-Gamma Multiplicity Correlations in ${}^{252}\text{Cf}$(sf)
• High resolution measurement of tagged two-neutron energy and angle correlations in Cf-252(sf)
• Correlations between energy and $\gamma$-ray emission in ${}^{239}\mathrm{Pu}(n,\mathrm{f})$
• Connection of four-dimensional Langevin model and Hauser-Feshbach theory to describe statistical decay of fission fragments
• Event-by-Event Multiplicity Correlations in ${}^{252}$Cf(sf)
• Parameter Optimization and Uncertainty Analysis of FREYA for Spontaneous Fission
• Meaurement of spin vs. TKE of ${}^{144}$Ba produced in spontaneous fission of ${}^{252}$Cf
• Fragment Intrinsic Spins and Fragments' Relative Orbital Angular Momentum in Nuclear Fission