Onset of High-Harmonic Fast Wave Propagation in Annulus Geometry

Open Access

Issue		EPJ Web Conf. Volume 346, 2026 25^th Topical Conference on Radio-Frequency Power in Plasmas (RFPPC2025)


Article Number		01022
Number of page(s)		7
Section		Theory and Modeling of Radio-Frequency Waves in Plasmas
DOI		https://doi.org/10.1051/epjconf/202634601022
Published online		07 January 2026

J. C. Hosea et al., High harmonic fast wave heating efficiency enhancement and current drive at longer wavelength on the National Spherical Torus Experiment, Phys. Plasmas 15, 056104 (2008). https://doi.org/10.1063/1.2837051 [Google Scholar]
S. H. Stix, Waves in Plasmas (American Institute of Physics, 1992) [Google Scholar]
D. L. Green et al., Predicting high harmonic ion cyclotron heating efficiency in tokamak plasmas, Phys. Rev. Lett. 107, 145001 (2011). https://doi.org/10.1103/PhysRevLett.107.145001 [Google Scholar]
N. Bertelli et al., Full wave simulations of fast wave heating losses in the scrape-off layer of NSTX and NSTX-U, Nucl. Fusion 54, 083004 (2014). https://doi.org/10.1088/0029-5515/54/8/083004 [Google Scholar]
E. H. Kim et al., Effect of wall boundary on the scrape-off layer losses of high harmonic fast wave in NSTX and NSTX-U, Phys. Plasmas 26, 062501 (2019). https://doi.org/10.1063/1.5091579 [Google Scholar]
N. Bertelli et al., 3D full wave fast wave modeling with realistic HHFW antenna geometry and SOL plasma in NSTX-U, Nucl. Fusion 62, 126046 (2022), https://doi.org/10.1088/1741-4326/ac9690 [Google Scholar]
R. Perkins et al., Resonance in fast-wave amplitude in the periphery of cylindrical plasmas and application to edge losses of wave heating power in tokamaks, Phys. Plasmas 23, 070702 (2016). https://doi.org/10.1063/1.4954899 [Google Scholar]
D. M. Pozar, Microwave Engineering (John Wiley and Sons, 2012) [Google Scholar]
N. Bertelli et al., Full wave simulations of fast wave efficiency and power losses in the scrape-off layer of tokamak plasmas in mid/high harmonic and minority heating regimes, Nucl. Fusion 56, 016019 (2015). https://doi.org/10.1088/0029-5515/56/1/016019 [Google Scholar]
D. G. Swanson, Plasma Waves (Institute of Physics, 2003) [Google Scholar]
S. Shiraiwa et al., RF wave simulation for cold edge plasmas using the MFEM library, EPJ Web Conf. 157, 03048 (2017). https://doi.org/10.1051/epjconf/201715703048 [Google Scholar]
A. Ram and K. Hizanidis. Scattering of radio frequency waves by cylindrical density filaments in tokamak plasmas, Phys. Plasmas 23, 022504 (2016). https://doi.org/10.1063/1.4941588 [Google Scholar]
R. De Levante Rodriguez, Study of high harmonic fast waves interactions in the scrape off layer of NSTX-U, Master Thesis, MIT (2025). [Google Scholar]
Y. Ogawa et al., Analysis of the loading resistance for ICRF heating experiments in ASDEX, Plasma Phys. Contr. Fus. 33, 155 (1991). https://doi.org/10.1088/0741-3335/33/2/005 [Google Scholar]
W. Tierens et al., On the origin of high harmonic fast wave edge losses in NSTX, Nucl. Fusion 62, 096011 (2022). https://doi.org/10.1088/1741-4326/ac7c7d [Google Scholar]
R. J. Perkins et al., High-harmonic fast-wave power flow along magnetic field lines in the scrape-off layer of NSTX, Phys. Rev. Lett. 109, 045001 (2012). https://doi.org/10.1103/PhysRevLett.109.045001 [Google Scholar]
R. J. Perkins et al., The role of rectified currents in far-field RF sheaths and in SOL losses of HHFW power on NSTX, Nucl. Mater. Energy 12, 283 (2017). https://doi.org/10.1016/j.nme.2017.04.013 [Google Scholar]
J. C. Hosea, HHFW Operations on NSTX-U, Physics Operations Course, PPPL (2015). https://nstx.pppl.gov/DragNDrop/Operations/Physi cs_Operations_Course/15%20Hosea_HHFW%20o perations_fin-2.pdf [Google Scholar]
W. Helou, The ITER ICRF system under the new ITER baseline: latest updates and technological development, 25th Topical Conference on Radio-Frequency Power in Plasmas, Schloss Hohenkammer, Germany, May 19-22 (2025), https://www.ipp.mpg.de/5487515/Talks [Google Scholar]

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.