| Issue |
EPJ Web Conf.
Volume 256, 2021
Scientific Workshop on “Nuclear Fission Dynamics and the Emission of Prompt Neutrons and Gamma Rays” (Theory-5)
|
|
|---|---|---|
| Article Number | 00009 | |
| Number of page(s) | 8 | |
| DOI | https://doi.org/10.1051/epjconf/202125600009 | |
| Published online | 15 December 2021 | |
https://doi.org/10.1051/epjconf/202125600009
Anisotropy in fission fragment and prompt neutron angular distributions
Los Alamos National Laboratory, Los Alamos, New Mexico, 87545, USA
* e-mail: lovell@lanl.gov
Published online: 15 December 2021
Several physics mechanisms can lead to the deviation from an isotropic angular distribution for both fission fragments and the neutrons that are emitted during the fission event. Two of these effects have recently been implemented into CGMF, the Monte Carlo fission event generator developed at Los Alamos National Laboratory: angular distribution sampling for fission fragments and pre-equilibrium neutrons (those emitted before the compound nucleus forms). Using these new developments, we show that the anisotropy of the neutrons reflects the anisotropy of the fission fragments, in particular as the outgoing energy of neutrons increases. Correlations between the fission fragment and neutron anisotropies could be used to extract the fission fragment anisotropy from the neutron angular distributions.
© The Authors, published by EDP Sciences, 2021
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