Detection of defects and hydrogen by ion beam analysis in channelling mode for fusion

Type of project: national project

Duration: 2021 - 2024

Project leader: Doc. Dr Sabina MarkeljCode: J2-3038Coworkers: Dr Esther Punzón Quijorna, Mitja Kelemen, Prof. Dr Primož Pelicon, Assoc. Prof. Dr Matjaž VenceljExternal coworkers: Dr janez Zavašnik, Andrej Šestan

Understanding the interaction of hydrogen with the host lattice of plasma-facing as well as structural materials is crucial since low hydrogen isotope (HI) retention is a stringent prerequisite in thermonuclear fusion. This project is focused on the development of a new characterization technique to explore the influence of structural defects on HI retention and vice versa. As a pilot case, we will study HI interaction with tungsten (W); the latter considered as the main candidate for the wall material in a future fusion device. The main objective of our project is to set foundation for the evaluation of the interaction of structural defects with HI and the subsequent effect on HI retention and defect creation and evolution. We want to develop and use a novel ion channelling method at the tandem accelerator laboratory in Ljubljana to characterize the produced structural defects and HI retention.