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Neutron resonance transmission analysis of cylindrical samples used for reactivity worth measurements

  • Lino ŠalamonEmail author
  • Benoit Geslot
  • Jan Heyse
  • Stefan Kopecky
  • Pierre Leconte
  • Gilles Noguere
  • Carlos Paradela
  • Peter Schillebeeckx
  • Luka Snoj
Article

Abstract

A characterization of cylindrical samples by neutron resonance transmission analysis (NRTA) at the GELINA facility of JRC Geel (Belgium) is presented. The samples were designed and produced for reactivity worth measurements in the MINERVE reactor of CEA Cadarache (France). NRTA was applied to determine the nuclide composition of UO2, Al2O3 and liquid samples that were doped with silver. The volume number densities of 238U, 107Ag and 109Ag obtained by NRTA are within 2% fully consistent with the values that are quoted by the manufacturer. In addition, the NRTA data reveal a tungsten contamination which is not reported by the provider. It is shown that such a contamination contributes by up to 5.7% to the reactivity worth.

Keywords

Neutron resonance transmission analysis Silver isotopes Reactivity worth Time-of-flight 

Notes

Acknowledgements

This work was supported by the EUFRAT open access programme of the Joint Research Centre. The authors would like to thank technical staff for the dedicated and skillful operation of GELINA. We are also grateful to scientists of EC-JRC-Geel for their valuable comments and suggestions. L. Šalamon acknowledges the GENTLE project (Grant No. 323304) for the support during his stay at the JRC Geel.

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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2019

Authors and Affiliations

  1. 1.DER/DEN, CEA CadaracheSaint-Paul-lez-DuranceFrance
  2. 2.Joint Research CentreEuropean CommissionGeelBelgium
  3. 3.Reactor Physics DivisionJozef Stefan InstituteLjubljanaSlovenia

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