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Measurements of fast neutron capture cross sections on 63Cu and 186W

  • G. D. Kim
  • H. J. Woo
  • H. W. Choi
  • N. B. Kim
  • T. K. Yang
  • J. H. Chang
  • K. S. Park
Article

Abstract

Neutron capture cross sections on 63Cu and 186W were measured by fast neutron activation method at neutron energies from 1 to 2 MeV. Monoenergetic fast neutrons were produced by 3H(p,n)3He reaction. Neutron energy spread by target thickness, which was assumed to be the main factor of neutron energy spread, was estimated to be 1.5% at neutron energy of 2.077 MeV. Neutron capture cross sections on 63Cu and 186W were calculated by reference comparison method on those of 197Au(n,γ). Not only statistical errors of gamma-counts from samples but also systematic errors in the counting efficiency for HP Ge detector and the uncertainty of areal density of samples were considered in calculating neutron capture cross section. Estimated neutron capture cross sections on 63Cu and 186W were also compared with ENDF-6 data.

Keywords

Neutron Flux Fast Neutron Neutron Energy Areal Density Neutron Capture Cross Section 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Akadémiai Kiadó 2007

Authors and Affiliations

  • G. D. Kim
    • 1
  • H. J. Woo
    • 1
  • H. W. Choi
    • 1
  • N. B. Kim
    • 1
  • T. K. Yang
    • 2
  • J. H. Chang
    • 3
  • K. S. Park
    • 4
  1. 1.Ion Beam Application GroupKorea Institute of Geoscience and Mineral ResourcesDaejeonKorea
  2. 2.Cyclotron Application LaboratoryKorea Institute of Radiological and Medical SciencesSeoulKorea
  3. 3.Nuclear Data Evaluation LaboratoryKorea Atomic Energy Research InstituteDaejeonKorea
  4. 4.Korea Science Service InstituteSeoulKorea

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