The importance of realistic plasma filament waveforms for the study of resonant wave-filament interactions in tokamak edge plasmas

W. Tierens, W. Zhang, P. Manz

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

Recently, an analytical solution for plane wave scattering at density filaments in magnetized plasma was derived [A. K. Ram and K. Hizanidis, Phys. Plasmas 23, 022504 (2016)], from which conclusions were drawn regarding the possibility of resonant wave-filament interactions [W. Tierens et al., Phys. Plasmas 27, 010702 (2020)] between electromagnetic waves in the ion cyclotron range of frequencies and density filaments in tokamak edge plasmas. This analytical solution relies on several strongly simplified assumptions, such as a constant background density and a discontinuous density step at the filament surface. In this work, we numerically investigate to what extent conclusions based on this analytical solution remain qualitatively true in more realistic scenarios.

Original languageEnglish
Article number052102
JournalPhysics of Plasmas
Volume27
Issue number5
DOIs
StatePublished - May 1 2020
Externally publishedYes

Funding

This work has been carried out within the framework of the EUROfusion Consortium and has received funding from the Euratom research and training program 2014–2018 and 2019–2020 under Grant Agreement No. 633053. The views and opinions expressed herein do not necessarily reflect those of the European Commission.

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