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Experimental determination of the three components of toroidal momentum transport in the core of a tokamak plasma

  • C. F.B. Zimmermann*
  • , R. M. McDermott
  • , C. Angioni
  • , B. P. Duval
  • , R. Dux
  • , E. Fable
  • , T. Luda
  • , Antti Salmi
  • , U. Stroth
  • , Tuomas Tala
  • , G. Tardini
  • , T. Pütterich
  • , ASDEX Upgrade Team
  • *Corresponding author for this work
  • Max-Planck-Institut für Plasmaphysik (IPP)
  • Ecole Polytechnique Fédérale de Lausanne (EPFL)

Research output: Contribution to journalArticleScientificpeer-review

Abstract

A new approach to infer the momentum transport in tokamak core plasmas via perturbation experiments is presented. For the first time, the analysis self-consistently includes all momentum transport components and their time dependencies, which are essential to separate the momentum fluxes and closely match the experiment. The quantitative agreement between the experimentally inferred transport coefficients and the gyrokinetic predictions provides an unprecedented validation. This work shows that the new methodology and gyrokinetic predictions can now be utilized on the route to physics-based prediction of momentum transport in future reactor plasmas.

Original languageEnglish
Article number124003
Number of pages7
JournalNuclear Fusion
Volume63
Issue number12
DOIs
Publication statusPublished - Dec 2023
MoE publication typeA1 Journal article-refereed

Funding

The authors would like to sincerely thank Dr Stoltzfus-Dueck for the fruitful discussions. This work has been carried out within the framework of the EUROfusion Consortium, partially funded by the European Union via the Euratom Research and Training Programme (Grant Agreement No. 101052200—EUROfusion). The Swiss contribution to this work has been funded by the Swiss State Secretariat for Education, Research and Innovation (SERI). Views and opinions expressed are however those of the author(s) only and do not necessarily reflect those of the European Union, the European Commission or SERI. Neither the European Union nor the European Commission nor SERI can be held responsible for them.

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 7 - Affordable and Clean Energy
    SDG 7 Affordable and Clean Energy

Keywords

  • ASDEX Upgrade
  • intrinsic torque
  • momentum transport
  • perturbation experiment
  • plasma rotation
  • residual stress
  • tokamak

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