The authors optimize FREYA model parameters for thermal neutron-induced fission of 233,235U and 239,241Pu via genetic algorithm and test predictions on held-out observables.
Improved modeling of photon observables with FREYA
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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.
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Improving the Predictive Capability of the Fission Reaction Event Yield Algorithm ($\mathtt{FREYA}$)
The authors optimize FREYA model parameters for thermal neutron-induced fission of 233,235U and 239,241Pu via genetic algorithm and test predictions on held-out observables.