Neutron-Induced Fission of 233U, 238U, 232Th, 239Pu, 237Np, natPb and 209Bi Relative to 235U in the energy range 1-200 MeV

Oleg Shcherbakov, Andrei Donets, Alexander Evdokimov, Alexander Fomichev, Tokio Fukahori, Akira Hasegawa, Alexander Laptev, Vladimir Maslov, Guennady Petrov, Sergei Soloviev, Yuri Tuboltsev, Alexander Vorobyev

Research output: Contribution to journalArticlepeer-review

67 Citations (Scopus)

Abstract

Fission cross section ratios of 233U, 238U, 232Th, 239Pu, 237Np, natural Pb and 209Bi to 235U have been measured in a wide energy range of incident neutrons from 1 MeV to 200 MeV using a time-of-flight technique at the neutron spectrometer GNEIS based on the 1-GeV proton synchrocyclotron of PNPI. For actinide targets, the threshold cross section method and evaluated data below 14 MeV were used for normalization of the shape measurement data, while the evaluated and recommended fission cross sections of 235U were used to convert the ratio data to absolute fission cross sections. For Pb and Bi targets, an absolute normalization of the measured cross section ratios has been done using the thickness of the targets and detection efficiencies.

Original languageEnglish
Pages (from-to)230-233
Number of pages4
Journaljournal of nuclear science and technology
Volume39
DOIs
Publication statusPublished - 2002 Aug
Externally publishedYes

Keywords

  • Bismuth 209
  • Cross section
  • Intermediate energy
  • Ionization chamber
  • Measurement
  • Natural lead
  • Neptunium 237
  • Neutron fission
  • Plutonium 239
  • Thorium 232
  • Time-of-flight
  • Uranium 233
  • Uranium 235
  • Uranium 238

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering

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