Study of helium migration in nuclear materials at Jannus–Saclay

The Jannus multi-ion beam facility at Saclay allows performing as well single, dual or triple beam irradiation, ion implantation and ion beam analysis. This versatility is due on one hand to the large range of ion beams available from the three coupled accelerators and on the other hand to the possibility to use several dedicated or multi-purpose vacuum chambers. It is thus possible to investigate the radiation tolerance of inorganic or organic materials and the specific effect of an atomic species of nuclear interest like hydrogen, helium, fission or transmutation products under thermal treatment or ion irradiation. This paper discusses the capabilities offered by the Jannus facility to study helium mobility in advanced nuclear materials.