Magnetohydrodynamic activity during edge localized modes on ASDEX
Autor: | G. Fussmann, M. Kornherr, S. von Goeler, J. Gernhardt, O. Klüber |
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Rok vydání: | 1990 |
Předmět: | |
Zdroj: | Nuclear Fusion. 30:395-404 |
ISSN: | 1741-4326 0029-5515 |
DOI: | 10.1088/0029-5515/30/3/001 |
Popis: | Magnetohydrodynamic (MHD) activity during edge localized modes (ELMs) has been monitored in the ASDEX tokamak. Besides a fast inward shift of the plasma column, a helical MHD perturbation has been found to accompany ELMs. For the discharges investigated, the helical instability has a poloidal mode number m of 3 or 4 and a toroidal mode number n of 1, and it propagates in the direction of the electron diamagnetic drift. It seems to be identical with the Toi mode, which has been observed to disappear during L-H transitions. |
Databáze: | OpenAIRE |
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