Overview of progress in European medium sized tokamaks towards an integrated plasma-edge/wall solution a

H Meyer, T Eich, M Beurskens, S Coda, A Hakola… - Nuclear …, 2017 - iopscience.iop.org
Integrating the plasma core performance with an edge and scrape-off layer (SOL) that leads
to tolerable heat and particle loads on the wall is a major challenge. The new European …

Basic physical processes and reduced models for plasma detachment

PC Stangeby - Plasma Physics and Controlled Fusion, 2018 - iopscience.iop.org
The divertor of a tokamak reactor will have to satisfy a number of critical constraints, the first
of which is that the divertor targets not fail due to excessive heating or sputter-erosion. This …

Partial detachment of high power discharges in ASDEX Upgrade

A Kallenbach, M Bernert, M Beurskens, L Casali… - Nuclear …, 2015 - iopscience.iop.org
Detachment of high power discharges is obtained in ASDEX Upgrade by simultaneous
feedback control of core radiation and divertor radiation or thermoelectric currents by the …

The physics and technology basis entering European system code studies for DEMO

R Wenninger, R Kembleton, C Bachmann, W Biel… - Nuclear …, 2016 - iopscience.iop.org
A large scale program to develop a conceptual design for a demonstration fusion power
plant (DEMO) has been initiated in Europe. Central elements are the baseline design points …

Turbulence driven widening of the near-SOL power width in ASDEX Upgrade H-Mode discharges

T Eich, P Manz, RJ Goldston, P Hennequin… - Nuclear …, 2020 - iopscience.iop.org
Divertor heat flux data from infra red (IR) from various tokamaks in H-Mode regime show that
the power width, $\lambda_ {q} $, scales approximately like 1.6 (R/a) ρ s, pol. However, the …

Advances in the physics basis for the European DEMO design

R Wenninger, F Arbeiter, J Aubert, L Aho-Mantila… - Nuclear …, 2015 - iopscience.iop.org
In the European fusion roadmap, ITER is followed by a demonstration fusion power reactor
(DEMO), for which a conceptual design is under development. This paper reports the first …

[HTML][HTML] Impact of wall materials and seeding gases on the pedestal and on core plasma performance

E Wolfrum, M Beurskens, MG Dunne… - Nuclear Materials and …, 2017 - Elsevier
Plasmas in machines with all metal plasma facing components have a lower Z eff, less
radiation cooling in the scrape-off layer and divertor regions and are prone to impurity …

First-principles density limit scaling in tokamaks based on edge turbulent transport and implications for ITER

M Giacomin, A Pau, P Ricci, O Sauter, T Eich… - Physical Review Letters, 2022 - APS
A first-principles scaling law, based on turbulent transport considerations, and a
multimachine database of density limit discharges from the ASDEX Upgrade, JET, and TCV …

The DEMO wall load challenge

R Wenninger, R Albanese, R Ambrosino… - Nuclear …, 2017 - iopscience.iop.org
For several reasons the challenge to keep the loads to the first wall within engineering limits
is substantially higher in DEMO compared to ITER. Therefore the pre-conceptual design …

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 …