Publication

H-mode scrape-off layer power width in the TCV tokamak

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Based on a gyrokinetic analysis of and extrapolation from TCV discharges with large negative and positive triangularity delta, the potential of extreme | delta | in reducing turbulent transport is assessed. Linearly, both positive and negative delta can ex ...

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We present the results of 3D, flux-driven, global, two-fluid electrostatic turbulence simulations in a 5-field period stellarator with an island divertor. The numerical simulations are carried out with the GBS code, which solves the two-fluid drift-reduced ...

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Model-based optimization of magnetic control in the TCV tokamak: design and experiments

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Power exhaust by core radiation at COMPASS tokamak

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Substantial power dissipation in the edge plasma is required for the safe operation of ITER and next-step fusion reactors, otherwise unmitigated heat fluxes at the divertor plasma-facing components (PFCs) would easily exceed their material limits. Traditio ...

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Turbulence in the scrape-off layer of double-null tokamak configurations

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Understanding the turbulent dynamics in the outermost region of the tokamak is essential to predict and control the heat and particle loads to the vessel wall, a crucial problem for the entire fusion program. In this thesis, the problem is approached via t ...

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Development of an 11-channel multi wavelength imaging diagnostic for divertor plasmas in MAST Upgrade

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Divertor detachment and alternative divertor magnetic geometries are predicted to be promising approaches to handle the power exhaust of future fusion devices. In order to understand the detachment process caused by volumetric losses in alternative diverto ...

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Investigating Scrape-Off Layer transport in alternative divertor geometries on the TCV tokamak

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Nitrogen-seeded divertor detachment in TCV L-mode plasmas

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Most of the detachment experiments done to date on the tokamak a configuration variable (TCV), both in standard and alternative divertor geometries, focused on L-mode integrated core density ramps. In view of extending these studies to high-power, high-con ...

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