Designing a Validation Experiment for Radio Frequency Condensation

Lanke Fu; E. Litvinova Mitra; R. Nies; A. H. Reiman; M. Austin; L. Bardoczi; M. Brookman; Xi Chen; W. Choi; N. J. Fisch; Q. Hu; A. Hyatt; E. Jung; R. La Haye; N. C. Logan; M. Maraschek; J. J. McClenaghan; E. Strait; A. Welander; J. Yang; ASDEX Upgrade team

arXiv · 2410.13717

Designing a Validation Experiment for Radio Frequency Condensation

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Abstract

Theoretical studies have suggested that nonlinear effects can lead to "radio frequency condensation", which coalesces RF power deposition and driven current near the center of a magnetic island. It is predicted that an initially broad current profile can coalesce in islands when they reach sufficient width, providing automatic stabilization. Experimental validation of the theory has thus far been lacking. This paper proposes experiments on DIII-D for testing and refining the theory of the nonlinear effects.

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Lanke Fu, E. Litvinova Mitra, R. Nies, A. H. Reiman, M. Austin, L. Bardoczi, M. Brookman, Xi Chen, W. Choi, N. J. Fisch, Q. Hu, A. Hyatt, E. Jung, R. La Haye, N. C. Logan, M. Maraschek, J. J. McClenaghan, E. Strait, A. Welander, J. Yang, ASDEX Upgrade team. 2024-10-17. Designing a Validation Experiment for Radio Frequency Condensation. https://arxiv.org/abs/2410.13717

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