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Measurement of the Subthermal Neutron Induced Fission Cross Section of 241Pu

  • C. Wagemans
  • P. Schillebeeckx
  • A. J. Deruytter
  • R. Barthélémy
Part of the Research Reports in Physics book series (RESREPORTS)

Abstract

The 241Pu(n, f) cross-section has been measured from 2 meV up to 20 eV. The experiments were performed at GELINA, using a dedicated set-up optimized for cross-section measurements below 1 eV. The present σf(E)-data below 40 meV are clearly compatible with a 1/v-shape, in contradiction to the measurements reported in the literature. Consequently, there is a probability of errors in the thermal normalization of these measurements. Furthermore, the Westcott gf-factor calculated from the present σf(E)-data yields a value of 1.041 ± 0.003, which is lower than generally adopted.

Keywords

241Pu fission cross-section range 0.002—20 eV Wescott gf-factor 

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References

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Copyright information

© Springer-Verlag Berlin Heidelberg 1992

Authors and Affiliations

  • C. Wagemans
    • 1
  • P. Schillebeeckx
    • 2
  • A. J. Deruytter
    • 3
  • R. Barthélémy
    • 3
  1. 1.NFWO, Nuclear Physics Lab.University of GentBelgium
  2. 2.CEC, JRC, ISTIspraItaly
  3. 3.Commission of the European Communities, Joint Research CentreCentral Bureau for Nuclear MeasurementsGeelBelgium

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