Angular distribution of fragments in neutron-induced nuclear fission at energies 1−200 MeV: Data, theoretical models and relevant problems

In recent years, investigations of angular distributions of fragments in neutron-induced nuclear fission have been extended to intermediate energies, up to 200 MeV, as well as to a wide range of target isotopes. Using as an example the latest data obtained by our group for the reaction 237Np(n; f),...

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Main Authors: Barabanov Alexey, Vorobyev Alexander, Gagarski Alexei, Shcherbakov Oleg, Vaishnene Larisa
Format: Article
Language:English
Published: EDP Sciences 2021-01-01
Series:EPJ Web of Conferences
Online Access:https://www.epj-conferences.org/articles/epjconf/pdf/2021/10/epjconf_theory52021_00003.pdf
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author Barabanov Alexey
Vorobyev Alexander
Gagarski Alexei
Shcherbakov Oleg
Vaishnene Larisa
author_facet Barabanov Alexey
Vorobyev Alexander
Gagarski Alexei
Shcherbakov Oleg
Vaishnene Larisa
author_sort Barabanov Alexey
collection DOAJ
description In recent years, investigations of angular distributions of fragments in neutron-induced nuclear fission have been extended to intermediate energies, up to 200 MeV, as well as to a wide range of target isotopes. Using as an example the latest data obtained by our group for the reaction 237Np(n; f), we discuss the specific features of fission fragment angular distribution and present a method for their simulation based on the code TALYS. It is shown that a simplified model reasonably describes energy dependence of the angular distribution in the whole range 1–200 MeV. The ways to improve the model are discussed along with the possibilities to use it for obtaining new information on fission and pre-equilibrium processes in neutron-nucleus interaction. We consider also the relevant problems of describing fission fragment angular distributions.
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spelling doaj.art-57a8b3fac3be44ffa1422ee2913f70392022-12-22T04:16:29ZengEDP SciencesEPJ Web of Conferences2100-014X2021-01-012560000310.1051/epjconf/202125600003epjconf_theory52021_00003Angular distribution of fragments in neutron-induced nuclear fission at energies 1−200 MeV: Data, theoretical models and relevant problemsBarabanov Alexey0Vorobyev Alexander1Gagarski Alexei2Shcherbakov Oleg3Vaishnene Larisa4NRC Kurchatov InstituteNRC Kurchatov Institute, B.P. Konstantinov Petersburg Nuclear Physics InstituteNRC Kurchatov Institute, B.P. Konstantinov Petersburg Nuclear Physics InstituteNRC Kurchatov Institute, B.P. Konstantinov Petersburg Nuclear Physics InstituteNRC Kurchatov Institute, B.P. Konstantinov Petersburg Nuclear Physics InstituteIn recent years, investigations of angular distributions of fragments in neutron-induced nuclear fission have been extended to intermediate energies, up to 200 MeV, as well as to a wide range of target isotopes. Using as an example the latest data obtained by our group for the reaction 237Np(n; f), we discuss the specific features of fission fragment angular distribution and present a method for their simulation based on the code TALYS. It is shown that a simplified model reasonably describes energy dependence of the angular distribution in the whole range 1–200 MeV. The ways to improve the model are discussed along with the possibilities to use it for obtaining new information on fission and pre-equilibrium processes in neutron-nucleus interaction. We consider also the relevant problems of describing fission fragment angular distributions.https://www.epj-conferences.org/articles/epjconf/pdf/2021/10/epjconf_theory52021_00003.pdf
spellingShingle Barabanov Alexey
Vorobyev Alexander
Gagarski Alexei
Shcherbakov Oleg
Vaishnene Larisa
Angular distribution of fragments in neutron-induced nuclear fission at energies 1−200 MeV: Data, theoretical models and relevant problems
EPJ Web of Conferences
title Angular distribution of fragments in neutron-induced nuclear fission at energies 1−200 MeV: Data, theoretical models and relevant problems
title_full Angular distribution of fragments in neutron-induced nuclear fission at energies 1−200 MeV: Data, theoretical models and relevant problems
title_fullStr Angular distribution of fragments in neutron-induced nuclear fission at energies 1−200 MeV: Data, theoretical models and relevant problems
title_full_unstemmed Angular distribution of fragments in neutron-induced nuclear fission at energies 1−200 MeV: Data, theoretical models and relevant problems
title_short Angular distribution of fragments in neutron-induced nuclear fission at energies 1−200 MeV: Data, theoretical models and relevant problems
title_sort angular distribution of fragments in neutron induced nuclear fission at energies 1 200 mev data theoretical models and relevant problems
url https://www.epj-conferences.org/articles/epjconf/pdf/2021/10/epjconf_theory52021_00003.pdf
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