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Role in the project

SOTERIA is managed by the 19th Regional Office of CNRS (Normandy) which is fully experienced in this field. In SOTERIA, 5 research units are involved:
GPM UMR 6634
The GPM is involved in WP 2 and 3: In WP2, the GPM is working on the effect of flux on microstructural evolution of internals and on the microstrucre of RPV steels or model alloys irradiated at high fluence. In WP3, the GPM is working on the influence of metallurgical heterogeneities on microstructural irradiation response of 16MND5 vessel steel. In both cases, the main activities of the GPM are the nanoanalysis (APT, STEM) of irradiated model alloys and steels for a better understanding of irradiation ageing mechanisms.
The CSNSM is involved in WP2 and 3: In WP2, the CSNSM is involved in the study of the effect of neutron flux on the irradiation – induced nanostructure of RPV steels or model alloys. In  WP3, the CSNSM is involved in the study of  the influence of metallurgical heterogeneities on microstructural irradiation response of 16MND5 vessel steel. In both cases, the main activities of the CSNSM are the TEM investigations of irradiated model alloys and steels and material ion irradiation when planned.
UMET – UMR8207
The UMET is involved in WP5: the UMET is in charge - in close collaboration with EDF - of the development and improvement of nanostructure models for RPV and internals, using Density Functional Theory, Kinetic Monte Carlo and Rate Theory models. The sink strengths will be determined using phase field models.
This unit carries out the following activities:
• Positron annihilation spectroscopy in RPV models WP1.
• Positron annihilation spectroscopy in 16MND vessel steels WP3.
• He irradiations for the study of the Effects of Helium on IASCC Susceptibility in collaboration in WP4.
LMA – UPR7051
In close collaboration with IRSN, the role of the LMA in SOTERIA is to develop and to apply numerical full-field methods to study the mechanical behavior of  polycrystalline viscoplastic materials in presence of pores and cavities.

Personnel involved

Radiguet Bertrand, Associate Professor at University of Rouen
PhD drom University of Rouen in 2004. Associate Professor at the Groupe de Physique des Matériaux (GPM) since 2005. He is speciatlist of fine scale characterization (3D-field ion microscopy, atom probe tomography, scanning electron microscopy, focused ion beam, electron backscattered diffraction, energy dispersive X-ray spectroscopy) and fundamental understanding of structural evolution of steels and metal alloys under severe conditions (mainly irradiation but alsoball milling, high pressure torsion).
Radiguet Bertrand
Décamps Brigitte, Director of researches at CNRS
Brigitte Décamps is affected to the CSNSM since 2007.Shey participates actively in research involving the JANNuS Orsay platform through EMIR, EFDA including responsibility in the laboratory for European contracts GETMAT and PERFORM60, Needs... Brigitte Décamps is a specialist in the study of defects (dislocations , dislocation loops , bubbles / voids, Interaction dislocations / interfaces) ) by using several techniques TEM ( bright field , dark field , weak-beam dark field) assisted by simulation contrast of these defects on computer
Décamps Brigitte
Marie-France Barthe, Director of researches at CNRS
Assistant manager of CEMHTI. Specialist in irradiation science, irradiation induced damage in solids such as ceramics, semi-conductors or metals, characterization of point defects for determining their properties (formation, migration, agglomeration and interactions with impurities) by using positron annihilation spectroscopy.
Marie-France Barthe
Becquart Charlotte, Professor, lead investigator
Specialist of irradiation effect in metallic alloys using techniques such as Molecular Dynamics, Kinetic Monte Carlo and Density Functional Theory calculations
Becquart Charlotte
Hervé Moulinec, research engineer
Engineering diploma of ENSIEG (1984). PhD in Image Processing of Nice University (1989). Specialist in computational mechanics. Co-inventor of a numerical method based on FFT for computing the mechanical properties of heterogeneous materials, author of the code named CraFT based on this method.
Hervé Moulinec

Available Documentation

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