Journal article
First observation of a new zonal-flow cycle state in the H-mode transport barrier of the experimental advanced superconducting Tokamak
A new turbulence-flow cycle state has been discovered after the formation of a transport barrier in the H-mode plasma edge during a quiescent phase on the EAST superconducting tokamak. Zonal-flow modulation of high-frequency-broadband (0.05-1MHz) turbulence was observed in the steep-gradient region leading to intermittent transport events across the edge transport barrier.
Good confinement (H-98y,H-2 similar to 1) has been achieved in this state, even with input heating power near the L-H transition threshold. A novel model based on predator-prey interaction between turbulence and zonal flows reproduced this state well. © 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4769852]
Language: | English |
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Publisher: | American Institute of Physics |
Year: | 2012 |
Pages: | 122502 |
ISSN: | 10897674 and 1070664x |
Types: | Journal article |
DOI: | 10.1063/1.4769852 |
ORCIDs: | Naulin, Volker |