Characterisation of mixed neutron-photon workplace fields at nuclear facilities by spectrometry (energy and direction) within the EVIDOS project

Research output: Contribution to journalArticlepeer-review


  • M. Luszik-Bhadra
  • D. Bartlett
  • T. Bolognese-Milsztajn
  • M. Boschung
  • Michèle Coeck
  • G. Curzio
  • F. d'Errico
  • A. Fiechtner
  • V. Lacoste
  • L. Lindborg
  • M. Reginatto
  • H. Schuhmacher
  • R. Tanner
  • Filip Vanhavere

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Within the EC project EVIDOS, 17 different mixed neutron-photon workplace fields at nuclear facilities (boiling water reactor, pressurised water reactor, research reactor, fuel processing, storage of spent fuel) were characterised using conventional Bonner sphere spectrometry and newly developed direction spectrometers. the results of the analysis, using Baeyesian parameter estimation methods and different unfolding codes, some of them especially adapted to simultaneously unfold energy and direction distributions of the neutron fluence, showed that neutron spectra differed strongly at the different places, both in energy and direction distribution. The implication of the results for the determination of reference values for radiation protection quantities (ambient dose equivalent, personal dose equivalent and effective dose) and the related uncertainties are discussed.


Original languageEnglish
Pages (from-to)219-229
Number of pages10
JournalRadiation protection dosimetry
Issue number3
Publication statusPublished - 23 Sep 2007


  • characterisation, mixed neutron-photon, workplace, nuclear facilities, spectrometry, EVIDOS

ID: 81588