Anisotropy in fission fragment and prompt neutron angular distributions
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 A...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2021-01-01
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| Series: | EPJ Web of Conferences |
| Online Access: | https://www.epj-conferences.org/articles/epjconf/pdf/2021/10/epjconf_theory52021_00009.pdf |
| _version_ | 1798014319755001856 |
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| author | Lovell A.E. Talou P. Stetcu I. Kelly K.J. |
| author_facet | Lovell A.E. Talou P. Stetcu I. Kelly K.J. |
| author_sort | Lovell A.E. |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-04-11T15:15:39Z |
| format | Article |
| id | doaj.art-17ab2a009cb0438392ddace9fc3fa82a |
| institution | Directory Open Access Journal |
| issn | 2100-014X |
| language | English |
| last_indexed | 2024-04-11T15:15:39Z |
| publishDate | 2021-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj.art-17ab2a009cb0438392ddace9fc3fa82a2022-12-22T04:16:29ZengEDP SciencesEPJ Web of Conferences2100-014X2021-01-012560000910.1051/epjconf/202125600009epjconf_theory52021_00009Anisotropy in fission fragment and prompt neutron angular distributionsLovell A.E.0Talou P.1Stetcu I.2Kelly K.J.3Los Alamos National LaboratoryLos Alamos National LaboratoryLos Alamos National LaboratoryLos Alamos National LaboratorySeveral 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.https://www.epj-conferences.org/articles/epjconf/pdf/2021/10/epjconf_theory52021_00009.pdf |
| spellingShingle | Lovell A.E. Talou P. Stetcu I. Kelly K.J. Anisotropy in fission fragment and prompt neutron angular distributions EPJ Web of Conferences |
| title | Anisotropy in fission fragment and prompt neutron angular distributions |
| title_full | Anisotropy in fission fragment and prompt neutron angular distributions |
| title_fullStr | Anisotropy in fission fragment and prompt neutron angular distributions |
| title_full_unstemmed | Anisotropy in fission fragment and prompt neutron angular distributions |
| title_short | Anisotropy in fission fragment and prompt neutron angular distributions |
| title_sort | anisotropy in fission fragment and prompt neutron angular distributions |
| url | https://www.epj-conferences.org/articles/epjconf/pdf/2021/10/epjconf_theory52021_00009.pdf |
| work_keys_str_mv | AT lovellae anisotropyinfissionfragmentandpromptneutronangulardistributions AT taloup anisotropyinfissionfragmentandpromptneutronangulardistributions AT stetcui anisotropyinfissionfragmentandpromptneutronangulardistributions AT kellykj anisotropyinfissionfragmentandpromptneutronangulardistributions |