On the interaction of scrape off layer filaments

The Influence of Filaments on Scrape-Off Layer Transport in MAST

The tokamak scrape-off-layer (SOL) is a primary component of the interface between the core plasma and the material surfaces of the vacuum vessel. Investigations on the Mega-Ampere Spherical Tokamak (MAST) have been undertaken in an effort to characterise the filamentary nature of the SOL and to assess the influence of this intermittency on traditional steady-state approximations of the plasma ...

Finite ion temperature effects on scrape-off layer turbulence

Plasma shaping effects on tokamak scrape-off layer turbulence

The impact of plasma shaping on tokamak scrape-off layer (SOL) turbulence is investigated. The drift-reduced Braginskii equations are written for arbitrary magnetic geometries, and an analytical equilibrium model is used to introduce the dependence of turbulence equations on tokamak inverse aspect ratio ( ), Shafranov’s shift (∆), elongation (κ), and triangularity (δ). A linear study of plasma ...

Aspect ratio effects on limited scrape-off layer plasma turbulence

Simulation of the scrape-off layer region of tokamak devices

Understanding the key processes occurring in the tokamak scrape-off layer (SOL) is becoming of the outmost importance while we enter the ITER era and we move towards the conception of future fusion reactors. By controlling the heat exhaust, by playing an important role in determining the overall plasma confinement, and by regulating the impurity level in tokamak core, the dynamics of the fusion...