PhD thesis defense: Models of Radiolysis in Liquid Reactors for Transmission Electron Microscopy

Speaker

Giuseppe De Salvo

Affiliation

CIC nanoGUNE

When
Place

CFM Auditorium

Host

Andrey Chuvilin & Stefan Merkens

In liquid phase transmission electron microscopy (LP-TEM), we capture real-time chemical transformations at the nanoscale. However, every sample under investigation is affected by a pervasive cascade of physical and chemical processes induced by the ionising electron beam - radiolysis of the liquid medium. Theoretical studies on radiolysis investigate the intricate web of reactions initiated, where each species interacts through "countless" possible pathways.  In this talk, I will present the key findings of my thesis, focusing on advances in radiolysis modeling using finite element methods. By simulating the irradiated environment with chemical, physical, and geometric accuracy, the work investigate newly implemented physics and irradiation scenarios, optimizes computational efficiency, and validates theoretical predictions with experimental data from literature.