Erlangen 2026 – wissenschaftliches Programm
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P: Fachverband Plasmaphysik
P 16: Poster Session Plasma Physics
P 16.30: Poster
Donnerstag, 19. März 2026, 13:45–15:45, Redoutensaal
ERO2.0 code validation using boron erosion experiments at PSI-2 — •Andriy Tarasenko1,2, Christoph Baumann1, Juri Romazanov1, Sebastijan Brezinsek1,2, Marc Sackers1, and Arkadi Kreter1 — 1Forschungszentrum Jülich GmbH, Institute of Fusion Energy and Nuclear Waste Management - Plasma Physics, 52425 Jülich, Germany — 2Faculty of Mathematics and Natural Sciences, Heinrich Heine University Düsseldorf
Reliable predictions of plasma-wall interactions are essential for the design and operation of future fusion devices. In this work, the impurity transport code ERO2.0 is benchmarked against boron (B) erosion experiments performed at the linear plasma device PSI-2. Thin B layers on tungsten substrates were exposed to deuterium (D) plasmas with ion energies near the physical sputtering threshold, and erosion was quantified through post-mortem FIB-cuts analysis and optical emission spectroscopy. Experimentally inferred sputtering yields exceed classical BCA predictions, confirming earlier observations, such as those by Hechtl et al. of enhanced near-threshold B erosion. The exceeding yield can be caused by chemical erosion, which was investigated and compared with measured BD band emission. Using experimental plasma profiles, SDTrimSP sputter data, and synthetic emission line modelling, ERO2.0 reproduces key features of the measured impurity distribution and B emission profiles. The comparison highlights parameter sensitivities and demonstrates the capability of ERO2.0 to interpret PSI-2 measurements and support predictive modelling for ITER.
Keywords: ERO2.0; Plasma Physics; Plasma-Wall Interaction; Modeling