Dust Transport in MAST-U

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The aim of this project is to experimentally study dust transport and mobilization to: i) verify thephysical models used in DTOKs in a magnetized plasma; ii) study the mobilization and transport ofdust in MAST-U with different divertor (the tokamak's exhaust) configurations. Experiments verifyingexisting ion drag models and studying mobilization from surfaces will be performed at Liverpool onthe magnetized RF plasma experiment. Advanced plasma diagnostics such as RFEA, Langmuir andemissive probes, imaging emission spectroscopy and fast visible cameras will be used. To study dustmobilization and transport in MAST-U a recently developed modified DSF (Divertor Science Facility)probe head will be used to inject dust with a separate head for MAST-U and ITER relevant slots(representing typical tile gaps). Stereoscopic imaging, using fast visible and infra-red cameras and amachine learning dust tracking algorithm, along with other diagnostics (such as Langmuir probes)will be used to reconstruct the dust trajectory. Plasma background simulations along with DTOKspredictions will then be used to verify existing models and study dust transport from thereconstructed trajectories.