Plasma and Fusion Research
Volume 6, 2402024 (2011)
Regular Articles
- Institute of Plasma Physics, NSC KIPT, Kharkov 61108, Ukraine
- 1)
- Laboratory for Plasma Physics - ERM/KMS, Brussels, Belgium
- 2)
- Laboratorio Nacional de Fusión Asociación Euratom/Ciemat, 28040 Madrid, Spain
- 3)
- Max-Planck-Institut für Plasmaphysik, EURATOM Assoziation, TI, D-17491, Greifswald, Germany
Abstract
At present, two stellarator type fusion devices, Uragan-2 M and Uragan-3 M, are in operation in Kharkov. At the Uragan-3 M machine, investigations of the low-density low-collisional plasma are continued. L-H-mode-like transition is studied with particular attention to the mechanisms of its formation and impact on divertor flow behaviour. For a higher density plasma, a scenario of the RF Alfvén resonance heating in high k|| regime is realized both with continuous and pulsed gas injection. On Uragan-2 M the studies of RF wall conditioning are in progress. A new wall conditioning scheme which uses the high frequency slow wave is implemented.
Keywords
torsatron, wall conditioning, RF heating, plasma confinement, L-H transition, divertor plasma flow
Full Text
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This paper may be cited as follows:
Vladimir S. VOITSENYA, Anatoli I. LYSSOIVAN, Vladimir E. MOISEENKO, Francisco CASTEJÓN, Victor V. CHECHKIN, Dirk HARTMANN, Carlos HIDALGO, Raymond KOCH, Valery K. PASHNEV, Yevgen D. VOLKOV, Vladimir TERESHIN, Igor E. GARKUSHA, U-2 M Team and U-3 M Team, Plasma Fusion Res. 6, 2402024 (2011).