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Preliminary results of the first two months of ASDEX Upgrade operation with the new Lyra divertor (DV-II) are presented and compared to those obtained with the previous divertor configuration (DV-I). Emphasis is placed on issues which, according to common knowledge, might be related to the edge/divertor geometry, in particular upper density limits, H mode characteristics, particle control and impurity behaviour. The experimental facts are complemented by B2-Eirene modelling results. Remarkable changes in core magnetohydrodynamic (MHD) behaviour are also included, but their origin is not yet clear.

Additional information

Authors: NEUHAUSER J (EDITOR), Max-Planck-Institut für Plasmaphysik, Garching bei München (DE)
Bibliographic Reference: Report: IPP 1/311 EN (1997) 18pp.
Availability: Available from the Max-Planck-Institut für Plasmaphysik, 85748 Garching bei München (DE)
Record Number: 199711492 / Last updated on: 1997-11-18
Original language: en
Available languages: en
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