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Le centre CEA Paris-Saclay rassemble près de 7 000 personnes sur plusieurs sites géographiques proches de Paris, au sud et au sud-ouest de la région Île-de France. Créé en février 2017, le CEA Paris-Saclay regroupe des sites historiques du CEA, Fontenay-aux-Roses et Saclay, et des sites plus récents (Évry).
Toutes les dernières actualités scientifiques et institutionnelles des instituts du centre CEA Paris-Saclay.
Appel d'offres du CEA Paris-Saclay
Consultez les plans d'accès de nos établissements de Saclay, Fontenay-aux-Roses et Evry.
Actualité
Through the study of model systems, physicists from IRAMIS are gaining a deeper understanding of the mechanisms involved in the irradiation of a crystalline surface with "swift" ions. Ion beams can be produced by small accelerators and make it possible to shape surfaces on the atomic scale, including high-quality incisions or bends in a monoatomic layer of molybdenum disulfide (MoS2) or graphene.
For the first time, IRAMIS researchers have isolated complex ion pairs in the gas phase and were able to characterize them using UV and infrared spectroscopy. This original experimental approach will deepen the scientists' understanding of extremely diverse physicochemical processes in media as varied as biological cells and batteries.
Several decades after its discovery, dark matter remains enigmatic. Researchers from IRFU have tested three models of dark matter in which the formation of large structures was modeled using supercomputing. The reconstruction of large structures from observations of quasar spectra favors the hypothesis of a standard "cold" dark matter and sets some of the strongest constraints on these invisible masses.
Physicists from IRFU have announced that no "big brother" of the Higgs boson has been detected at the ATLAS experiment at CERN's LHC. Their results rely on new analyzes with higher sensitivity.
A European collaboration involving IRAMIS has described the fabrication of nanoporous graphene sheets that are both robust and easy to handle. The process, which can be used for large area fabrication, uses a copper/graphene/polymer 'sandwich' exposed to heavy swift-ion beam irradiation. It paves the way for numerous applications, including filtration for DNA sequencing and desalination of seawater.
A team from IRFU has reached a first milestone in the development of a detector for brain imaging which, scientists hope, will allow the measure of spatial resolution in positron emission tomography (PET) scans at the MRI level (mm3). The scientists have recently achieved the ultra-purification of a liquid similar the candidate for detection.
Through the radiocarbon dating of calcite granules secreted by earthworms, a multidisciplinary team involving LSCE proposed the first precise chronological framework for all thawing phases in the last glacial period.
What are the mechanisms of HIV control in individuals known as "controllers"? Researchers at the François-Jacob Institute and their partners have highlighted the peculiarities of CD8+ T cells.
An international collaboration led by IRFU and Riken Nishina Center (Japan) has performed the first spectroscopy of very neutron-rich krypton nuclei 98Kr and 100Kr, using the Radioactive Isotope Beam Factory accelerator in Riken. These experiments complement the results obtained on rubidium and zirconium and deepen the knowledge on a shape transition that occurs in these three nuclei beyond 60 neutrons.
Researchers from the CEA Frédéric-Joliot Institute have identified photosynthesis mechanisms that protect plants from excessive sunlight, with the idea of mimicking them to optimize solar technologies.
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Acteur majeur de la recherche, du développement et de l'innovation, le CEA intervient dans quatre grands domaines : énergies bas carbone, défense et sécurité, technologies pour l’information et technologies pour la santé.