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<p>The angular distributions of fragments and the cross section for the neutron-induced fission of <sup>242</sup>Pu nuclei in the energy range of 0.3–500 MeV have been measured using the time-of-flight spectrometer of the GNEIS neutron complex at the Petersburg Nuclear Physics Institute, National Research Center Kurchatov Institute. Fission fragments have been detected using low-pressure position-sensitive multiwire proportional counters. The <sup>242</sup>Pu<InlineEquation ID="IEq1"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="11448_2025_4187_Article_IEq1.gif" Format="GIF" Height="19" Rendition="HTML" Resolution="72" Type="Linedraw" Width="42" /> </InlineMediaObject> <EquationSource Format="TEX">\((n,f)\)</EquationSource> <!--JETPLet2560567Vorobyev-m1--> </InlineEquation> fission cross section has been measured with respect to the <sup>235</sup>U<InlineEquation ID="IEq2"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="11448_2025_4187_Article_IEq1.gif" Format="GIF" Height="19" Rendition="HTML" Resolution="72" Type="Linedraw" Width="42" /> </InlineMediaObject> <EquationSource Format="TEX">\((n,f)\)</EquationSource> <!--JETPLet2560567Vorobyev-m2--> </InlineEquation> fission cross section. The data obtained are compared to the results of previous experiments, as well as to estimates from various evaluated data libraries.</p>

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Measurement of the Anisotropy of the Angular Distributions of Fragments and the Cross Section for the Neutron-Induced Fission of 242Pu Nuclei in the Energy Range of 0.3–500 MeV

  • 期刊论文

  • 发表日期：

    2025年4月1日

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  • A. S. Vorobyev,
  • A. M. Gagarski,
  • O. A. Shcherbakov,
  • L. A. Vaishnene,
  • A. M. Tiagelskaia,
  • N. M. Olkhovich,
  • A. L. Barabanov,
  • T. E. Kuz’mina

摘要

The angular distributions of fragments and the cross section for the neutron-induced fission of 242Pu nuclei in the energy range of 0.3–500 MeV have been measured using the time-of-flight spectrometer of the GNEIS neutron complex at the Petersburg Nuclear Physics Institute, National Research Center Kurchatov Institute. Fission fragments have been detected using low-pressure position-sensitive multiwire proportional counters. The 242Pu \((n,f)\) fission cross section has been measured with respect to the 235U \((n,f)\) fission cross section. The data obtained are compared to the results of previous experiments, as well as to estimates from various evaluated data libraries.