Erlangen 2026 – scientific programme
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P: Fachverband Plasmaphysik
P 22: Plasma Wall Interaction III
P 22.1: Invited Talk
Friday, March 20, 2026, 09:00–09:30, KH 01.012
ERO/ERO2.0 modelling for tokamaks, stellarators and linear plasma devices — •Juri Romazanov1, Henri Kumpulainen1, Christoph Baumann1, Sebastian Rode1, Andriy Tarasenko1, Andreas Kirschner1, Georgii Timkovskii1, Dmitry Matveev1, Sebastijan Brezinsek1, JET team2, and W7-X team3 — 1Forschungszentrum Jülich GmbH, IFN-1, 52425 Jülich, Germany — 2See the author list of "Overview of T and D-T results in JET with ITER-like wall" by C.F. Maggi et al. Nucl. Fusion 64, 112012 (2024). — 3Max-Planck-Institut für Plasmaphysik, 17491 Greifswald, Germany
This contribution summarizes PWI research using the ERO2.0 code for erosion and material migration in magnetic confinement fusion devices. Code validation is demonstrated using experiments in the linear plasma device PSI-2, where B sample exposures were analyzed using spectroscopy of atomic B and molecular BD emission. Another validation study was conducted at JET, where interpretative plasma reconstructions were combined with predictive W modelling across all plasma regions and compared with experimental W profiles inferred from multiple diagnostics. Predictive studies are presented for several future devices. These include assessments of replacing C with W PFCs in W7-X, W erosion and prompt redeposition in ITER during limiter ramp-up and diverted operation with neon seeding, and lifetime predictions for diagnostic first mirrors. We conclude with EU-DEMO results and discuss challenges stemming from extrapolating plasma profiles to reactor walls.
Keywords: Erosion; ERO2.0; Plasma-wall interaction; Magnetic Confinement Fusion