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Abstract

In the regime of Improved Ohmic Confinement (IOC) in ASDEX the energy confinement time increases linearly with increasing line-averaged density up to the density limit. The establishment of the IOC is accompanied by a substantial reduction of the external gas feed, concomitant with large decreases of all plasma edge fluxes. However, the data do not supply conclusive evidence that the IOC is primarily connected with the recycling conditions. More recent observations with very clean machine conditions seem to indicate that the impurity radiation plays a significant role.

Additional information

Authors: VERBEEK H, Max-Planck-Institut für Plasmaphysik, Garching bei München (DE);POSCHENRIEDER W, Max-Planck-Institut für Plasmaphysik, Garching bei München (DE);CARLSON A, Max-Planck-Institut für Plasmaphysik, Garching bei München (DE);THE ASDEX TEAM ET AL., Max-Planck-Institut für Plasmaphysik, Garching bei München (DE)
Bibliographic Reference: Article: Plasma Physics and Controlled Fusion, Vol. 32 (1990) No. 8, pp. 651-658
Record Number: 199011454 / Last updated on: 1994-12-02
Category: PUBLICATION
Original language: en
Available languages: en