MOSAIC: the ion beams of Andromeda, JANNuS-Orsay and SIDONIE unite

This interdisciplinary research platform, born in 2023 from the merger of Andromède and JANNuS-SCALP from IJCLab, delivers ion beams to synthesize, modify, characterize materials, and study ion-matter interactions. MOSAIC consists of various equipment:

  • Irradiation devices and ion implantation in a wide range of energy and temperature, from protons to gold nanoparticles: 4 MV Andromède and 2 MV ARAMIS accelerators, 190 kV IRMA implanter, 40 kV SIDONIE isotope separator, probe of multicharged ions 30 kV Tancrède.
  • Tools for structural and physicochemical analysis of surfaces and materials: analyzes by RBS, ERDA, PIXE, PIGE, MSI ion beams, and MET, SEM, AFM microscopes.

Six IJCLab centers regularly use this equipment located in buildings 108 and 201. The JANNuS-Orsay experimental hall houses IRMA, ARAMIS, and the various associated beamlines. MOSAIC is open to academics, industrialists, and students for practical work. The international reputation of the platform is based in particular on the following specific features:

  • Atomic and molecular characterizations via time-of-flight mass spectrometry on Andromède, using energetic nanoparticles as projectiles to probe at the nanometric scale the chemistry of various surfaces (mineral and organic matrices).
  • The measurement of low-energy nuclear reactions in situ, with the hosting of multi-year experiments at Andromède combined with multi-charged ion beams.
  • The production of high purity isotopes, thanks to the SIDONIE separator.
  • In situ characterization, at the nanometric scale, of the evolution of structural and chemical modifications of materials subjected to one or two ion beams, using the coupling of a Transmission Electron Microscope with ARAMIS and IRMA.
  • Measurements of the behavior of materials under irradiation, carried out by RBS-C in situ, and soon in a complementary manner using an in situ X-ray diffractometer (SIXPAC project).

IJCLab's MOSAIC platform, supported by CNRS IN2P3 and Paris-Saclay University, is a member of the EMIR&A accelerator federation listed on the national research infrastructure roadmap.

2023-09-15 13:06