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Abstract

According to the magnetic diffusion equation, the ratio of the normalised current density and the temperature sawteeth should lie between 2/3 and 3/4 on the tokamak magnetic axis if, as is the case in TEXTOR, the q = 1 magnetic surface remains still during the sawtooth ramp phase, and if the sawtooth amplitude is moderately small and rises linearly with time. Experimental confirmation of this theoretical result in TEXTOR is presented. The implication is that the electrical conductivity is neoclassical over most of the ramp phase.

Additional information

Authors: HASSELBERG G, Institut für Plasmaphysik, Kernforschungsanlage Jülich GmbH, Jülich (DE);ROGISTER A L M, Institut für Plasmaphysik, Kernforschungsanlage Jülich GmbH, Jülich (DE);SOLTWISCH H, Institut für Plasmaphysik, Kernforschungsanlage Jülich GmbH, Jülich (DE);KHALIL S M, Nuclear Research Centre, Plasma Physics Department, Cairo (EG)
Bibliographic Reference: Article: Nuclear Fusion, Vol. 31 (1991) No. 3, pp. 592-595
Record Number: 199110889 / Last updated on: 1994-12-02
Category: PUBLICATION
Original language: en
Available languages: en