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Pis'ma v Zh. Èksper. Teoret. Fiz., 2019, Volume 110, Issue 4, Pages 222–229 (Mi jetpl5974)  

This article is cited in 1 scientific paper (total in 1 paper)

FIELDS, PARTICLES, AND NUCLEI

Angular distributions and anisotropy of fragments from the neutron-induced fission of $^{237}$Np in the energy range of 1–200 MeV: measurement data and model calculations

A. S. Vorobyeva, A. M. Gagarskia, O. A. Shcherbakova, L. A. Vaishnenea, A. L. Barabanovbc

a Petersburg Nuclear Physics Institute, National Research Center Kurchatov Institute, Gatchina, Russia
b Moscow Institute of Physics and Technology, State University, Dolgoprudnyi, Moscow region, Russia
c National Research Center Kurchatov Institute, Moscow, Russia

Abstract: The experimental data on the angular distributions of fragments from the fission of $^{237}$Np nuclei induced by 1–200 MeV neutrons have been presented. Such measurements for neutron energies above 16 MeV have been performed for the first time. These distributions have been analyzed and the angular anisotropy in the center-of-mass of fragments has been determined in the entire energy range under study. A method involvng the complex dynamics of the formation and decay of highly excited nuclei and based on the TALYS program has been proposed to calculate the angular distributions of fission fragments in a wide energy range for the collision of nuclei with neutrons. It has been shown that the developed model describes well the main features of the energy dependence of the angular anisotropy for the $^{237}$Np target nuclei and can be used to extract new information on the reaction and fission process.

Funding Agency Grant Number
Russian Foundation for Basic Research 18-02-00571_
This work was supported in part by the Russian Foundation for Basic Research (project no. 18-02-00571).


DOI: https://doi.org/10.1134/S0370274X19160021

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English version:
Journal of Experimental and Theoretical Physics Letters, 2019, 110:4, 242–249

Bibliographic databases:

Received: 17.06.2019
Revised: 08.07.2019
Accepted:14.07.2019

Citation: A. S. Vorobyev, A. M. Gagarski, O. A. Shcherbakov, L. A. Vaishnene, A. L. Barabanov, “Angular distributions and anisotropy of fragments from the neutron-induced fission of $^{237}$Np in the energy range of 1–200 MeV: measurement data and model calculations”, Pis'ma v Zh. Èksper. Teoret. Fiz., 110:4 (2019), 222–229; JETP Letters, 110:4 (2019), 242–249

Citation in format AMSBIB
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\by A.~S.~Vorobyev, A.~M.~Gagarski, O.~A.~Shcherbakov, L.~A.~Vaishnene, A.~L.~Barabanov
\paper Angular distributions and anisotropy of fragments from the neutron-induced fission of $^{237}$Np in the energy range of 1--200 MeV: measurement data and model calculations
\jour Pis'ma v Zh. \`Eksper. Teoret. Fiz.
\yr 2019
\vol 110
\issue 4
\pages 222--229
\mathnet{http://mi.mathnet.ru/jetpl5974}
\crossref{https://doi.org/10.1134/S0370274X19160021}
\elib{https://elibrary.ru/item.asp?id=39175308}
\transl
\jour JETP Letters
\yr 2019
\vol 110
\issue 4
\pages 242--249
\crossref{https://doi.org/10.1134/S0021364019160124}
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\scopus{https://www.scopus.com/record/display.url?origin=inward&eid=2-s2.0-85074157408}


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    This publication is cited in the following articles:
    1. A. S. Vorobev, A. M. Gagarskii, O. A. Scherbakov, L. A. Vaishnene, A. L. Barabanov, Pisma v ZhETF, 112:6 (2020), 343–351  mathnet  crossref
  •       Pis'ma v Zhurnal ksperimental'noi i Teoreticheskoi Fiziki
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