partly extended to non-spherical grains, which allowed assessing the impact of
complex shapes of the dust particles in fusion devices on the dust dynamics. The
results of numerical simulations (performed with sophisticated codes developed
from scratch) of the dust particle dynamics and transport in fusion devices show
decent agreement with the experimental observations.
However, there are still some gaps in our understanding/description of the dust
physics in fusion devices. Some of them are related to the plasma physics (e.g. the
description of an impact of large turbulent plasma fluctuations, often observed in the
edge plasma, on dust transport), but probably the most important and the most
complex one, the dust generation and injection rate into the plasma, is related to
both the material science and the plasma-material interactions. Still, a lot should be
done in this direction.
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