[en] As discussed in Ref. [1], recent theoretical and numerical treatments [2, 3] have sought to express the plasma radiofrequency (RF) response as a nonlocal integral operator formulated in configuration space. Analytical expressions of the integral kernels are available for Maxwellian particle species. This approach enables (i) direct use of the finite element method (FEM) to model wave propagation and absorption in hot inhomogeneous fusion plasmas, (ii) local mesh-refinement, (iii) provides RF field representations suited to address tokamak geometry, and (iv) allows straightforward connection between plasma and antenna models. The present contribution focuses on the concrete application of this method, in an incremental way, developing codes and exploiting finite element codes/libraries.
Disciplines :
Computer science
Author, co-author :
Reman, Bernard C.G.; Laboratory for Plasma Physics, Royal Military Academy, Brussels, Belgium
Lamalle, Philippe; Laboratory for Plasma Physics, Royal Military Academy, Brussels, Belgium
Zaleski, Jules ; Université de Liège - ULiège > Département d'électricité, électronique et informatique (Institut Montefiore) > Applied and Computational Electromagnetics (ACE)
Slaby, Christoph; Max-Planck-Institut für Plasmaphysik, Germany ; Greifswald, Germany
Van Eester, Dirk; Laboratory for Plasma Physics, Royal Military Academy, Brussels, Belgium
Geuzaine, Christophe ; Université de Liège - ULiège > Département d'électricité, électronique et informatique (Institut Montefiore) > Applied and Computational Electromagnetics (ACE)
Louche, Fabrice; Laboratory for Plasma Physics, Royal Military Academy, Brussels, Belgium
Lerche, Ernesto; Laboratory for Plasma Physics, Royal Military Academy, Brussels, Belgium
Sánchez, Elena Moral; Max-Planck-Institut für Plasmaphysik, Germany ; Garching, Germany
Maquet, Vincent; Laboratory for Plasma Physics, Royal Military Academy, Brussels, Belgium
Language :
English
Title :
Integral dielectric kernel implementation to model RF heating in toroidal plasmas
Publication date :
07 January 2026
Event name :
25th Topical Conference on Radio-Frequency Power in Plasmas
SPINNER GmbH; This work has been carried out within the framework of the EUROfusion Consortium, funded by the European Union via the Euratom Research and Training Programme (Grant Agreement No 101052200 \u2014 EUROfusion). Views and opinions expressed are however those of the author(s) only and do not necessarily reflect those of the European Union or the European Commission. Neither the European Union nor the European Commission can be held responsible for them.
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