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Abstract

The density limit for quasi stationary discharges in the TCA tokamak is approximately 5 x 1.0E 19/m3. Higher line average densities, above 1.0 E 20/m3, can be obtained by hard gas puffing. When this is followed by a gentle decrease of the gas flux, reproducible discharges without disruption can be obtained. Experimental results presented suggest that these are not IOC discharges. Nevertheless, the plasmas created are close to the Murakami density limit and the Troyon beta limit.

Additional information

Authors: NIESWAND C, Centre de Recherches en Physique des Plasmas, Ecole Polytechnique Fédérale de Lausanne, Lausanne (CH);PIETRZYK Z A, Centre de Recherches en Physique des Plasmas, Ecole Polytechnique Fédérale de Lausanne, Lausanne (CH);POCHELON A, Centre de Recherches en Physique des Plasmas, Ecole Polytechnique Fédérale de Lausanne, Lausanne (CH);BEHN R, Centre de Recherches en Physique des Plasmas, Ecole Polytechnique Fédérale de Lausanne, Lausanne (CH);KNIGHT A, Centre de Recherches en Physique des Plasmas, Ecole Polytechnique Fédérale de Lausanne, Lausanne (CH)
Bibliographic Reference: Paper presented: 17th EPS Conference on Controlled Fusion and Plasma Heating, Amsterdam (NL), June 25-29, 1990
Availability: Available from (1) as Paper EN 35301 ORA
Record Number: 199011570 / Last updated on: 1994-12-02
Category: PUBLICATION
Original language: en
Available languages: en