Decoupling of peeling and ballooning thresholds for pedestal stability and reduction in ELM frequency via enhanced turbulence with edge electron cyclotron heating in DIII-D

The edge localized mode (ELM) frequency ( f _ELM ) decreased by 63% when electron cyclotron heating (ECH) deposition location is shifted from ρ = 0.4 to ρ = 0.8 in DIII-D discharges where the power ratio between neutral beam injection (NBI) and ECH ( P _NBI / P _ECH ) is kept at ∼1. The performance...

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Bibliographic Details
Main Authors: Santanu Banerjee, K. Barada, C. Chrystal, R. Groebner, S. Mordijck, T. Odstrčil, T. Osborne, T.L. Rhodes, F. Scotti, Z. Yan, L. Zeng, J. Damba, F. Laggner, S. Haskey, B. Grierson, J. Chen, S. Saarelma, A. Pankin
Format: Article
Language:English
Published: IOP Publishing 2024-01-01
Series:Nuclear Fusion
Subjects:
Online Access:https://doi.org/10.1088/1741-4326/ad4d03