Grâce au faisceau d’Arronax, le jeune scientifique entame une série de travaux visant à collecter des données inédites sur la dégradation des polycarboxylates d’éther soumis à des rayonnements ionisants.

After a thesis at the French Alternative Energies and Atomic Energy Commission (CEA) and the Institut de Chimie Séparative de Marcoule (ICSM) defended in July 2020, Vincent Fiegel has just joined Nantes and the Subatech laboratory (UMR 6457) for a year as a post-doc funded within the European project CORI (Cement Organic Radionuclide Interactions).

His work concerns the degradation, under the effect of ionizing radiations, of ether polycarboxylates, a class of superplasticizers used in the composition of concrete used in nuclear packages in radioactive waste storage buildings. The alpha radiolysis of the Arronax cyclotron and the gamma irradiator will allow Vincent Fiegel to reproduce the exposure conditions of superplasticizers and to study their effects on the chemistry of these compounds.

Integrated in the radiochemistry group of Subatech and hosted in Arronax, Vincent Fiegel works in collaboration with Johan Vandenborre and Guillaume Blain.

Contact : Vincent Fiegel