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Article Dans Une Revue Nuclear Materials and Energy Année : 2023

Post-mortem and in-situ investigations of magnetic dust in ASDEX Upgrade

Résumé

Pre-plasma mobilization of magnetic dust can be an important issue for future fusion reactors where plasma breakdown is critical. A combined on-line and off-line study of magnetic dust in ASDEX Upgrade is reported. Post-mortem collection revealed similar composition and morphology compared to other tokamaks, but the overall amount was much smaller. Optical and IR camera diagnostics excluded dust flybys prior to plasma start-up. The negative detection is discussed in light of the magnetic dust properties, the strength of mobilizing forces and the temporal evolution of the magnetic field.
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Dates et versions

hal-04210261 , version 1 (18-09-2023)

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M. de Angeli, V. Rohde, P. Tolias, S. Ratynskaia, F. Brochard, et al.. Post-mortem and in-situ investigations of magnetic dust in ASDEX Upgrade. Nuclear Materials and Energy, 2023, 36, pp.101476. ⟨10.1016/j.nme.2023.101476⟩. ⟨hal-04210261⟩
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