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My research activity focuses on the study at the nanometric scale of structural and chemical modifications in materials induced by ion implantation and/or irradiation, to understand the basic mechanisms of the synthesis of materials under ion beams, or their damage. The JANNuS−Orsay platform at CSNSM (of which I am a local contact), consisting of a transmission electron microscope connected to two ion accelerators, is an ideal tool because it allows the irradiation and / or implantation of the considered material with one or two simultaneous ion beams, with in situ observations and structural studies.
Currently I am studying in particular the two following points:
Ageing of power plants vessels components, experimentally simulated through ion beams (irradiation and helium presence), in order to understand the mechanisms (more information here)
Understanding nano-oxides synthesis by ion implantation in steels: application to ODS materials, under consideration for Gen IV nuclear reactors, more information here