Fast Reactor Experiments for hYbrid Applications (FREYA)
Research Project, 2011 – 2016

Building up on the former activities accomplished in the previous FPs, namely MUSE in FP5 and EUROTRANS in FP6, it is proposed in the FREYA project to extend the investigations of the subcritical figurations for validation of the methodology for on-line reactivity monitoring of ADS systems. The investigations will be related to the different subcriticality levels for the nominal operation mode of ADS. In order to investigate the robustness of several proposed measurement techniques with regard to the reflector effect, it is foreseen to perform experiments with different reflector materials. To complete the validation of the methodology for subcriticality monitoring, the robustness of the reactivity indicators with regard to a change in vertical position of the neutron source will be investigated in view of possible variations of the height of the spallation source in a real ADS. On the other hand given the objectives for MYRRHA/FASTEF as studied within FP7 CDT to be operated as a subcritical facility and a critical facility, an experimental programme in support of the design and licensing of both operation modes is needed. Although the experimental programme with regard to the critical mode operation of MYRRHA/FASTEF can generate useful information for the validation of reactor codes for LFR development, a dedicated effort for the validation of reactor codes for LFR developments is envisaged by the LFR community.


Imre Pazsit (contact)

Nuclear Engineering

Dina Chernikova

Nuclear Engineering

Syed F Naeem

Nuclear Engineering


AGH University of Science and Technology

Krakow, Poland

Ansaldo Nucleare

Genova, Italy

Budapest University of Technology and Economics

Budapest, Hungary

Centre national de la recherche scientifique (CNRS)

Paris, France

Centro de Investigaciones Energeticas, Medioambientales y Tecnologicas (Ciemat)

Madrid, Spain

Delft University of Technology

Delft, Netherlands


Berlin, Germany

Instituto Superior Tecnico

Lisboa, Portugal

Instituto Tecnologico e Nuclear

Sacavem, Portugal

Italian National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA)

Roma, Italy

Karlsruhe Institute of Technology (KIT)

Karlsruhe, Germany

National Institute for Nuclear Physics

Roma, Italy

Royal Institute of Technology (KTH)

Stockholm, Sweden

Studiecentrum voor Kernenergie (SCK-CEN)

Brussel, Belgium

Technical University of Madrid

Madrid, Spain

The French Alternative Energies and Atomic Energy Commission (CEA)

Gif-sur-Yvette, France


European Commission (EC)

Project ID: EC/FP7/269665
Funding Chalmers participation during 2011–2016

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