9–13 Sept 2024
ETH Zürich
Europe/Zurich timezone

【212】MHD simulations of runaway electron avalanche in ITER mitigated disruptions

12 Sept 2024, 17:15
15m
ETZ E 7

ETZ E 7

Talk Applied Physics; Plasma Physics Applied Physics

Speaker

Chizhou Wang (Swiss Plasma Center, EPFL)

Description

The avalanche of high-energy runaway electrons (RE) during ITER disruptions could potentially generate several MA’s of RE current which might damage the plasma-facing components. Previous studies have suggested that avoiding the formation of such a large RE current would be difficult. However, before their quantity increases to a large value, some REs might be lost due to the scraping-off of the flux surfaces on the wall during the plasma’s vertical displacement or the magnetic stochasticity from the growth of MHD instabilities. In our work, this process is simulated with the JOREK code, using a reduced MHD model self-consistently coupled to a RE fluid description.

Author

Chizhou Wang (Swiss Plasma Center, EPFL)

Co-authors

Eric Nardon Mr Javier Artola (ITER Organiation) Mr Jonathan Graves (Swiss Plasma Center, EPFL) Mr Matthias Hoelzl (Max Planck Institute for Plasma Physics) Ms Mengdi Kong (Swiss Plasma Center, EPFL) Mr Vinodh Bandaru (Indian Institute of Technology Guwahati)

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