Detector positioning for the initial subcriticality level determination in accelerator-driven systems

Wim Uyttenhove, Gert Van den Eynde, Peter Baeten, Anatoly Kochetkov, Guido Vittiglio, Jan Wagemans, Danny Lathouwers, J. L. Kloosterman, Tim H.J.J. Van Der Hagen, Frank Wols, Annick Billebaud, Sébastien Chabod, H. E. Thybault, Jean-Luc Lecouey, Gilles M. Ban, François-René Lecolley, Nathalie Marie, Jean Claude Steckmeyer, Ph. Dessagne, M. KervenoFrédéric Mellier

Research outputpeer-review

7 Scopus citations


Within the GUINEVERE project (Generation of Uninterrupted Intense NEutrons at the lead VEnus REactor) carried out at SCK•CEN in Mol, the continuous deuteron accelerator GENEPI-3C was coupled to the VENUS-F fast simulated lead-cooled reactor. Today the FREYA project (Fast Reactor Experiments for hYbrid Applications) is ongoing to study the neutronic behavior of this Accelerator Driven System (ADS) during different phases of operation. In particular the set-up of a monitoring system for the subcriticality of an ADS is envisaged to guarantee safe operation of the installation. The methodology for subcriticality monitoring in ADS takes into account the determination of the initial subcriticality level, the monitoring of reactivity variations, and interim cross-checking. At start-up, the Pulsed Neutron Source (PNS) technique is envisaged to determine the initial subcriticality level. Thanks to its reference critical state, the PNS technique can be validated on the VENUS-F core. A detector positioning methodology for the PNS technique is set up in this paper for the subcritical VENUS-F core, based on the reduction of higher harmonics in a static evaluation of the Sjöstrand area method. A first case study is provided on the VENUS-F core. This method can be generalised in order to create general rules for detector positions and types for full-scale ADS.

Original languageEnglish
Title of host publicationInternational Conference on the Physics of Reactors 2012, PHYSOR 2012
Subtitle of host publicationAdvances in Reactor Physics
PublisherAmerican Nuclear Society
Number of pages13
ISBN (Print)9781622763894
StatePublished - 2012
EventInternational Conference on the Physics of Reactors 2012: Advances in Reactor Physics, PHYSOR 2012 - Knoxville, TN
Duration: 15 Apr 201220 Apr 2012

Publication series

NameInternational Conference on the Physics of Reactors 2012, PHYSOR 2012: Advances in Reactor Physics


ConferenceInternational Conference on the Physics of Reactors 2012: Advances in Reactor Physics, PHYSOR 2012
Country/TerritoryUnited States
CityKnoxville, TN

ASJC Scopus subject areas

  • Nuclear Energy and Engineering

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