Analiza zadrževanja devterija v poškodovanem volframu s pomočjo ionskega žarka v načinu kanaliziranja za raziskave v fuziji
Oznaka in naziv projekta
J2-60052 Analiza zadrževanja devterija v poškodovanem volframu s pomočjo ionskega žarka v načinu kanaliziranja za raziskave v fuziji
J2-60052 Channeling Mode Ion Beam Analysis of Deuterium Retention in Damaged Tungsten for Fusion Research (IBADeTung)
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Projektna skupina
Vodja projekta: dr. Esther Punzon Quijorna
Sodelujoče raziskovalne organizacije: Povezava na SICRIS
Sestava projektne skupine: Povezava na SICRIS
Vsebinski opis projekta
Controlled nuclear fusion is one of the most promising pathways toward sustainable and clean energy, replicating the energy-generating process of the sun. Fusion reactions, particularly those involving hydrogen isotopes, deuterium and tritium, are the most widely explored option for energy production in fusion reactors. However, they place extreme demands on the materials used in reactors. Tungsten is the leading candidate for plasma-facing components due to its robustness and low hydrogen isotope retention. Nevertheless, neutron irradiation produced in the D-T fusion reaction induces damage in the crystal lattice of tungsten, affecting its properties, including hydrogen isotope retention.
This research addresses the challenge by investigating how irradiation-induced defects in tungsten interact with hydrogen isotopes. We employ advanced techniques such as Rutherford Backscattering Spectrometry (RBS) and Nuclear Reaction Analysis (NRA) in channeling configuration, which allow us to both track the evolution of crystal damage and quantify hydrogen trapped in defects. This innovative combination provides insights beyond the reach of conventional methods.
The project also involves upgrading the INSIBA end-station at the tandem accelerator at JSI for in-situ studies, incorporating a 6-axis goniometer with heating (up to 1200 °C) and liquid nitrogen cooling. This will enable real-time monitoring of defects and hydrogen behaviour under fusion-relevant conditions. Complementary analyses, including transmission electron microscopy and positron-based techniques, will help us build a complete picture of microstructural evolution.
By advancing our understanding of defect dynamics and hydrogen retention in tungsten, this research contributes to the development of resilient materials for future fusion reactors, supporting the global transition to clean and sustainable energy.
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