Abstract
The event-by-event fission model FREYA is employed to study photon observables. The model has been expanded beyond the simple statistical photon emission reported previously to include the discrete RIPL-3 lines. We update the earlier results and discuss the sensitivity of the results to the FREYA input parameters.
Highlights
The computational model FREYA [1,2,3,4,5,6,7] generates complete fission events, i.e. it provides the full kinematic information on the two product nuclei as well as all the emitted neutrons and photons
An emphasis had been put on speed so that large event samples can be generated fast
The fragment charges are sampled from the normal distributions suggested by experiment [3]
Summary
The computational model FREYA [1,2,3,4,5,6,7] generates complete fission events, i.e. it provides the full kinematic information on the two product nuclei as well as all the emitted neutrons and photons. (It should be noted that the statistical decay procedure was modified so that the angular momentum is reduced by one unit for each emission in order to better emulate the predominantly E1 and M1 character of those transitions.) In order to ensure that the nucleus arrives at a tabulated level, the energy of the last statistical transition is increased (slightly) so that the final state is the closest lower-lying level.
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