Mitsi Eleni

Ph.D Candidate

+30 210 6503769

Eleni Mitsi graduated from the Physics Department of National Kapodistrian University of Athens (2017) and received her M.Sc. in “Physics and Technological Applications” from National Technical University of Athens (2019). During her BSc’s and Master’s thesis she developed an open-source code to analyze μ-XRF spectra and also gained experience in neutron spectroscopy utilizing liquid scintillator followed by a pulse shape discrimination-capable circuit. Since 2020 she is a research associate at the Fusion Technology Group of the Institute of Nuclear and Radiological Sciences, Technology, Energy & Safety at NCSR ‘Demokritos’. She studies the evolution of defects created by protons impinging on tungsten (W) by means of in-situ electrical resistivity measurements.

PhD Short Description

Eleni Mitsi's Ph.D research project contributes to the European Fusion Programme (EUROfusion) by investigating the primary defect evolution and recovery in materials subjected to high-dose irradiation, a critical challenge for future fusion energy systems. The work focuses on understanding the thermal recovery mechanisms in materials that have experienced severe lattice damage, particularly in conditions relevant to fusion reactors where materials are exposed to intense neutron fluxes.

The research involves ion irradiation of fusion-relevant materials, such as ferritic alloys and tungsten, at cryogenic temperatures, followed by isochronal annealing across various temperatures. In-situ electrical resistivity measurements are used to monitor recovery behavior. Experiments are conducted using the TANDEM accelerator at NCSR “Demokritos” and other European facilities, including the Ruđer Bošković Institute in Croatia.

The study aims at providing experimental validation for theoretical models and simulations, enhancing predictive capabilities regarding material performance in fusion environments and contributing directly to the development of reliable materials for fusion energy systems.