Direct toroidal torque driven by ICRF heating and its dependence on the plasma rotation

Bilato, R.; Brambilla, M.; Fable, E.; Poli, E.

doi:10.1088/1741-4326/aa6f39

Cited by 3 publications

(1 citation statement)

References 34 publications

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“…consistent with the assumptions made in SSFPQL). In TORIC/SSFPQL, plasma rotation is now considered both for ICRH absorption [40] and NBI (implemented for this paper). The output distribution function of SSFPQL is given in the plasma frame, and is then transformed into the lab frame for comparison with TRANSP and the experiment.…”

Section: Comparison With Theory 41 Code Overviewmentioning

confidence: 99%

Phase-space resolved measurement of 2nd harmonic ion cyclotron heating using FIDA tomography at the ASDEX Upgrade tokamak

et al. 2017

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Section: Comparison With Theory 41 Code Overviewmentioning

confidence: 99%

Phase-space resolved measurement of 2nd harmonic ion cyclotron heating using FIDA tomography at the ASDEX Upgrade tokamak

et al. 2017

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Momentum Sources

Rice

2021

Springer Series on Atomic, Optical, and Plasma Physics

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ELM-free enhanced D α H-mode with near zero NBI torque injection in DIII-D tokamak

Macwan,

Barada,

Parisi

et al. 2024

Physics of Plasmas

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Enhanced Dα H-mode (EDA H-mode), an ELM-free H-mode regime, and the concomitant quasi-coherent mode (QCM) are explored in neutral beam heated, lower single null plasmas with near zero external torque injection. This regime exhibits good energy confinement (H98y2 ∼ 1) with βN ∼ 2, high density, regime access at low input power, and no ELMs. New time–resolved measurements of electron and ion density, temperature, plasma rotation, and radial electric field as well as turbulence, flows, thermal and particle transport, and linear instability calculations examining the dynamics of the QCM are presented. Measurements using multiple fluctuation diagnostics reveal the QCM to be a separatrix spanning mode, peaking just inside the separatrix, existing in a wide range of k⊥ρs ∼ 0.1–1.2 with multiple harmonics, and propagating with a very small phase velocity in the plasma frame, where k⊥ is the binormal wavenumber and ρs is the ion sound radius. Linear gyrokinetic simulations of this EDA H-mode discharge with CGYRO indicate that the trapped electron mode (TEM) and electron temperature gradient mode are the dominant instabilities in the radial region where QCM is also unstable. Qualitative analysis indicates that the properties of TEM are consistent with the experimentally observed characteristics of the QCM. These similarities suggest that the QCM is consistent with a TEM instability existing in the edge region of the EDA H-mode plasmas.

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Direct toroidal torque driven by ICRF heating and its dependence on the plasma rotation

Cited by 3 publications

References 34 publications

Phase-space resolved measurement of 2nd harmonic ion cyclotron heating using FIDA tomography at the ASDEX Upgrade tokamak

Phase-space resolved measurement of 2nd harmonic ion cyclotron heating using FIDA tomography at the ASDEX Upgrade tokamak

Momentum Sources

ELM-free enhanced D α H-mode with near zero NBI torque injection in DIII-D tokamak

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