NuFuel & MMSNF 2015

First Workshop on Research into Nuclear Fuel in Europe
and Materials Modeling and Simulation for Nuclear Fuels Workshop
Karlsruhe, Germany, November 16th to 18th, 2015

Updated: Tue 08 Dec 2015, 14:27

Talk 2.3: Outcomes from the implementation of irradiation tests on minor actinides bearing oxide fuels

S. BĂ©jaoui1, Elio D’Agata2, R. Hania3, J. Somers4, D. Freis4 and F. Delage1
  • 1: CEA - France
  • 2: JRC/IET - Netherlands
  • 3: NRG, Netherlands
  • 4: JRC/ITU - Germany


The PELGRIMM European project (“PELlets versus GRanulates: Irradiation, Manufacturing, Modelling”) deals with modelling and experimental studies on Minor Actinides (MA) bearing oxide fuels devoted to both homogeneous recycling in driver fuels and heterogeneous recycling in radial core blankets, in Sodium-cooled Fact Reactor (SFR). Significant effort is directed towards the development of irradiation tests. Behaviour under irradiation of Americium Bearing Blanket (AmBB) fuel is addressed through the MARIOS separate-effect irradiation aiming at studying gaseous release and swelling of small fuel discs as a function of temperature thanks to an innovative experiment design. Study of AmBB behaviour is also the purpose of the semi-integral irradiation experiment MARINE in which are tested both pelletized and spherepacked fuel under irradiation. A specific feature of MARINE is the use of pressure transducers allowing direct measurement of gaseous release from the fuels during the experiment. SPHERE experiment addresses the behaviour under irradiation of both pelletized and spherepacked fuel for homogenous MA recycling. The description and the status of these irradiation tests will be provided in the presentation. Through this description, the different realisation steps of an irradiation experiment will be illustrated:

  • design phase studies and irradiation preparation with MARINE experiment,
  • performing of the irradiation with SPHERE experiment,
  • interpretation of the irradiation and obtaining of the experimental results with MARIOS post-irradiation examinations.

The authors appreciate the support of the scientists and institutions involved in the FP–7 PELGRIMM Project, as well as the financial support of the European Commission through the grant agreement 295664.