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The properties of an island divertor for Wendelstein 7-AS were investigated by using the B2-Eirene package. Because B2 is a two dimensional code the calculation needs to be done on a toroidally averaged grid. Carbon influx resulting from physical and chemical sputtering was treated self-consistently. The model predicts a transition from low to high recycling at a separatrix density of 1E19 m{-3}. A detailed discussion of the momentum removal mechanism for this geometry will be presented.

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Authors: HERRE G ET AL, Max-Planck-Institut für Plasmaphysik, Garching bei München (DE)
Bibliographic Reference: Article: Journal of Nuclear Materials, Vol. 214-243 (1997) pp. 941-945
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