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arXiv · 1606.09538

Plasma Turbulence in the Scrape-off Layer of the ISTTOK Tokamak

Rogerio Jorge·Paolo Ricci·Federico D. Halpern·Nuno F. Loureiro·Carlos Silva
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Abstract

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. A comparison between experimental measurements and simulation results is presented.

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Rogerio Jorge, Paolo Ricci, Federico D. Halpern, Nuno F. Loureiro, Carlos Silva. 2016-10-02. Plasma Turbulence in the Scrape-off Layer of the ISTTOK Tokamak. https://doi.org/10.1063/1.4964783

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