In ASDEX Upgrade helium plasmas, He2+ dominates tungsten divertor erosion, and the chosen sheath boundary condition can change the predicted tungsten source by an order of magnitude.
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Tungsten erosion and scrape-off layer transport modelling in L-mode helium plasma discharges in ASDEX Upgrade
In ASDEX Upgrade helium plasmas, He2+ dominates tungsten divertor erosion, and the chosen sheath boundary condition can change the predicted tungsten source by an order of magnitude.