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Updated: Apr 25, 2026

Magnetically Induced Rotating Rayleigh-Taylor Instability
Published on: March 3, 2017
Experimental observation of a magnetic-turbulence threshold for runaway-electron generation in the TEXTOR tokamak
L Zeng1, H R Koslowski2, Y Liang2
1Forschungszentrum Jülich GmbH, Institute of Energy and Climate Research-Plasma Physics (IEK-4), Association EURATOM-FZJ, Trilateral Euregio Cluster, 52425 Jülich, Germany and Institute of Plasma Physics, Chinese Academy of Sciences, 230031 Hefei, China.
Abstract:
Magnetic turbulence is observed at the beginning of the current quench in intended TEXTOR disruptions. Runaway electron (RE) suppression has been experimentally found at magnetic turbulence larger than a certain threshold. Below this threshold, the generated RE current is inversely proportional to the level of magnetic turbulence. The magnetic turbulence originates from the background plasma and the amplitude depends strongly on the toroidal magnetic field and plasma electron density. These results explain the previously found toroidal field threshold for RE generation and have to be considered in predictions for RE generation in ITER.
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