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In DIII-D three different types of edge localised modes (ELMs) have been observed (types I, II and III). The type III ELMs are similar to those observed on ASDEX, whereas the type I ELMs did not occur on ASDEX. A stability analysis of standard DIII-D discharges indicates that type III ELMs occur well below the ideal ballooning limit. Type I ELMs generally occur close to this limit; there are indications that they also occur in discharges in which the edge is in the connection region to the second stability regime.

Additional information

Authors: ZOHM H, Max-Planck-Institut für Plasmaphysik, Garching bei München (DE);OSBORNE T H ET AL., General Atomics, San Diego, California (US);DOYLE E J, University of California at Los Angeles (US);HILL D N, Lawrence Livermore National Laboratory, California (US)
Bibliographic Reference: Article: Nuclear Fusion, Vol. 35 (1995) No. 5, pp. 543-550
Record Number: 199510935 / Last updated on: 1995-08-10
Original language: en
Available languages: en