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 JANNuS Saclay irradiation platform

Located at CEA Saclay in the Nuclear Materials Department (DMN), the JANNuS facility (Joint Accelerator for Nanosciences and Nuclear & Simulation) is a triple beam facility coupling three ion accelerators dedicated to the experimental simulation of neutron irradiation effects in nuclear reactor structural materials and fuel. It is a complementary irradiation tool with the OSIRIS research reactor in Saclay and the JHR European reactor, which is currently under construction at CEA Cadarache. JANNuS couples a 3 MV Pelletron accelerator (ÉPIMÉTHÉE line) equipped with a multi-charged ECR ion source, a 2.5 MV Pelletron acelerator with an RF ion source (PANDORE line), and a 2 MV Pelletron Tandem accelerator (JAPET line). Associated with the complementary JANNuS Orsay facility, this platform is the only one of this kind in Europe and is used to:

• simulate neutron-induced ballistic damage and atom production (nuclear reactions) in nuclear materials using ion beams;

• modify the properties of materials in a fully controlled way and to synthesize new phases by ion implantation or irradiation;

• quantify the evolution of chemical composition and microstructure of irradiated materials using available on-line ion beam analysis techniques;

• promote training and teaching activities in the field of ion/matter interaction;

• strengthen interactions between experimentalists and scientists that develop analytical models for the behavior of irradiated materials  on scales ranging from nanometric (atom displacement) to macroscopic (evolution of physical, chemical, and mechanical properties).