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research article

Plasma turbulence in the scrape-off layer of the ISTTOK tokamak

Jorge, Rogério  
•
Ricci, Paolo
•
Halpern, Federico D.
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2016
Physics of Plasmas

The properties of plasma turbulence in a poloidally limited scrape-off layer (SOL) are addressed, with focus on ISTTOK, a large aspect ratio tokamak with a circular cross section. Theoretical investigations based on the drift-reduced Braginskii equations are carried out through linear calculations and non-linear simulations, in two-and three-dimensional geometries. The linear instabilities driving turbulence and the mechanisms that set the amplitude of turbulence as well as the SOL width are identified. A clear asymmetry is shown to exist between the low-field and the high-field sides of the machine. While the comparison between experimental measurements and simulation results shows good agreement in the far SOL, large intermittent events in the near SOL, detected in the experiments, are not captured by the simulations.

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Type
research article
DOI
10.1063/1.4964783
Web of Science ID

WOS:000387445500060

Author(s)
Jorge, Rogério  
Ricci, Paolo
Halpern, Federico D.
Loureiro, Nuno F.
Silva, Carlos
Date Issued

2016

Publisher

American Institute of Physics (AIP)

Published in
Physics of Plasmas
Volume

23

Issue

10

Article Number

102511

Subjects

CRPP_EDGE

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
SPC  
Available on Infoscience
November 16, 2016
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/131101
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