News JANNuS-Saclay

The JANNuS-Saclay facility grows together with the needs of its users : a new beam line and connected end-station have been commissioned in 2019

The multi-beam irradiation facility JANNuS-Saclay has been designed for studying the radiation resistance of nuclear materials for fission and fusion systems and for the fuel-cycle management. Its three ion-accelerators can simulate many of the physical and chemical interaction effects between neutrons and matter such as nuclear recoil damage, production of fission gasses, helium and hydrogen production from nuclear reactions… The wide range of beam conditions can also enable to investigate in-service ageing of structural materials and to manufacture on-demand nano-structured compounds of interest for renewable energies.
The facility includes three electrostatic ion-accelerators with complementary performances connected to several optical beam lines and end stations. Since its opening in the late 2000’s, the users’ needs grow toward customised experiments, which reliably replicate a set of environmental factors (temperature, damage rate and distribution…). In 2017, a decision was taken to build a supplementary beam line linked to Epiméthée and connected to a new irradiation chamber in order to increase the facility operability and agility in planning experiments.
After more than two years of design, construction and developments, the first irradiation experiment was successfully performed in the new end-station in October 2019.


Assembly and tests of the new optical beamline (left) and its irradiation chambre named E2 (right)