Analysis of Parametric Decay Instabilities Driven by Helicon Waves in Tokamak Experiments

Open Access

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


Article Number		02019
Number of page(s)		4
Section		Wave Heating and Current Drive in Present and Future Fusion Devices
DOI		https://doi.org/10.1051/epjconf/202634602019
Published online		07 January 2026

R.I. Pinsker, B. Van Compernolle, S.X. Tang, J.B. Lestz, C.P. Moeller, C.C. Petty, A. Dupuy, J.P. Squire, A.M. Garofalo, M. Porkolab, J.C. Rost, S.G. Baek, A. Nagy, S. Chowdhury, N.A. Crocker, G.H. Degrandchamp, A.G. McLean, K.R. Gage, A. Marinoni, E.H. Martin, G. Ronchi, and the D.- D. Team, First high-power helicon results from DIII-D, Nuclear Fusion 64, 126058 (2024). https://doi.org/10.1088/1741-4326/ad78e8 [Google Scholar]
H.Y. Lee, J.H. Kim, H.H. Wi, J.G. Kwak, and S.J. Wang, RF conditioning to suppress multipactor discharge for helicon wave current drive in KSTAR, Fusion Engineering and Design 193, 113782 (2023). https://doi.org/10.1016/j.fusengdes.2023.113782 [Google Scholar]
V.L. Vdovin, Current generation by helicons and lower hybrid waves in modern tokamaks and reactors ITER and DEMO. Scenarios, modeling and antennae, Plasma Phys. Rep. 39, 95 (2013). https://doi.org/10.1134/S1063780X13020037 [Google Scholar]
X. Li, H. Liu, N. Xiang, and M. Li, Theoretical analysis of helicon wave current drive in EAST with high βe operation, Physics Letters A 384, 126779 (2020). https://doi.org/10.1016/j.physleta.2020.126779 [Google Scholar]
H.B. Liu, X.X. Li, Z.Y. Xiao, D.Z. Zhang, and A.P. Sun, Numerical simulation of helicon waves current drive in the HL-2M tokamak for the steady-state scenario, J. Korean Phys. Soc. 79, 1135–1140 (2021). https://doi.org/10.1007/s40042-021-00326-5 [Google Scholar]
M.A. Irzak, and S.A. Nechaev, Full-Wave 2D Modeling of Helicons Propagation and Absorption in the Spherical Tokamak Globus-M2, Tech. Phys. 68, 361 (2023). https://doi.org/10.1134/S1063784223900644 [Google Scholar]
C. Lau, E.F. Jaeger, N. Bertelli, L.A. Berry, D.L. Green, M. Murakami, J.M. Park, R.I. Pinsker, and R. Prater, AORSA full wave calculations of helicon waves in DIII-D and ITER, Nucl. Fusion 58, 066004 (2018). https://doi.org/10.1088/1741-4326/aab96d [Google Scholar]
M. Porkolab, R.I. Pinsker, G.H. DeGrandchamp, S.G. Baek, B.V. Compernolle, S. Denk, C.C. Petty, S.X. Tang, and K.E. Thome, Parametric decay instabilities driven by high power helicon waves in DIII-D, AIP Conference Proceedings 2984, 070004 (2023). https://doi.org/10.1063/5.0163570 [Google Scholar]
Z. Gao, Z.H. Su, Z.R. Liu, Z.K. Huang, J.Y. Han, and Z.Y. Liu, Kinetic theory of parametric instabilities in magnetized plasmas and its application to analyzing decay waves during the injection of lower hybrid waves, Nucl. Fusion 65, 046033 (2025). https://doi.org/10.1088/1741-4326/adbcc4 [Google Scholar]
R. Cesario, L. Amicucci, A. Cardinali, C. Castaldo, M. Marinucci, F. Napoli, F. Paoletti, D. De Arcangelis, M. Ferrari, A. Galli, G. Gallo, E. Pullara, G. Schettini, and A.A. Tuccillo, Spectral broadening of parametric instability in lower hybrid current drive at a high density, Nucl. Fusion 54, 043002 (2014). https://doi.org/10.1088/0029-5515/54/4/043002 [Google Scholar]
A. Zhao, and Z. Gao, Parameter study of parametric instabilities during lower hybrid wave injection into tokamaks, Nucl. Fusion 53, 083015 (2013). https://doi.org/10.1088/0029-5515/53/8/083015 [Google Scholar]
K. Chen, and Z. Gao, Saturation of a quasi-mode parametric instability in an inhomogeneous plasma, Nucl. Fusion 65, 036020 (2025). https://doi.org/10.1088/1741-4326/adb0de [Google Scholar]
K. Chen, and Z. Gao, Analysis of the convective amplification process of a three-wave parametric instability arises from low frequency plasma fluctuation, Plasma Phys. Control. Fusion 67, 035026 (2025). https://doi.org/10.1088/1361-6587/adb888 [Google Scholar]
K. Chen, and Z. Gao, Absolute parametric instabilities with non-resonant daughter waves in an inhomogeneous plasma, Commun. Theor. Phys. 77, 115501 (2025). https://doi.org/10.1088/1572-9494/addb26 [Google Scholar]

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