High density operation for reactor-relevant power exhaust

M Wischmeier, ASDEX Upgrade Team - Journal of Nuclear Materials, 2015 - Elsevier
With increasing size of a tokamak device and associated fusion power gain an increasing
power flux density towards the divertor needs to be handled. A solution for handling this …

Experimental validation of a filament transport model in turbulent magnetized plasmas

D Carralero, P Manz, L Aho-Mantila, G Birkenmeier… - Physical review …, 2015 - APS
In a wide variety of natural and laboratory magnetized plasmas, filaments appear as a result
of interchange instability. These convective structures substantially enhance transport in the …

[HTML][HTML] Plasma edge and plasma-wall interaction modelling: Lessons learned from metallic devices

S Wiesen, M Groth, M Wischmeier, S Brezinsek… - Nuclear Materials and …, 2017 - Elsevier
Robust power exhaust schemes employing impurity seeding are needed for target
operational scenarios in present day tokamak devices with metallic plasma-facing …

High-resolution heat flux width measurements at reactor-level magnetic fields and observation of a unified width scaling across confinement regimes in the Alcator C …

D Brunner, B LaBombard, AQ Kuang, JL Terry - Nuclear Fusion, 2018 - iopscience.iop.org
New data from Alcator C-Mod have extended the range of heat flux measurements and
scalings to poloidal magnetic fields above ITER-level. Knowledge of how the scrape-off …

The H-mode density limit in the full tungsten ASDEX Upgrade tokamak

M Bernert, T Eich, A Kallenbach… - Plasma Physics and …, 2014 - iopscience.iop.org
The high confinement mode (H-mode) is the operational scenario foreseen for ITER, DEMO
and future fusion power plants. At high densities, which are favorable in order to maximize …

Cross-field and parallel dynamics of SOL filaments in TCV

N Offeddu, W Han, C Theiler, T Golfinopoulos… - Nuclear …, 2022 - iopscience.iop.org
Using recently installed scrape-off layer diagnostics on the tokamak à configuration variable,
we characterise the poloidal and parallel properties of turbulent filaments. We access both …

Recent progress towards a quantitative description of filamentary SOL transport

D Carralero, M Siccinio, M Komm, SA Artene… - Nuclear …, 2017 - iopscience.iop.org
A summary of recent results on filamentary transport, mostly obtained with the ASDEX-
Upgrade tokamak (AUG), is presented and discussed in an attempt to produce a coherent …

Investigation into the formation of the scrape-off layer density shoulder in JET ITER-like wall L-mode and H-mode plasmas

A Wynn, B Lipschultz, I Cziegler, J Harrison… - Nuclear …, 2018 - iopscience.iop.org
The low temperature boundary layer plasma (scrape-off layer or SOL) between the hot core
and the surrounding vessel determines the level of power loading, erosion and implantation …

Numerical simulations of blobs with ion dynamics

AH Nielsen, JJ Rasmussen, J Madsen… - Plasma Physics and …, 2016 - iopscience.iop.org
The transport of particles and energy into the scrape-off layer (SOL) region at the outboard
midplane of medium-sized tokamaks, operating in low confinement mode, is investigated by …

Dependence of scrape-off layer profiles and turbulence on gas fuelling in high density H-mode regimes in TCV

A Stagni, N Vianello, CK Tsui, C Colandrea… - Nuclear …, 2022 - iopscience.iop.org
A set of high density, highly shaped H-mode discharges has been performed in the TCV
tokamak with the aim of assessing the effects of increasing divertor neutral recycling on the …