Verification of GENE and GYRO with L-mode and I-mode plasmas in Alcator C-Mod
نویسندگان
چکیده
منابع مشابه
Heat-flux footprints for I-mode and EDA H-mode plasmas on Alcator C-Mod
IR thermography is used to measure the heat flux footprints on C-Mod’s outer target in Imode and EDA H-mode plasmas. The footprint profiles are fit to a function with a simple physical interpretation. The fit parameter that is sensitive to the power decay length into the SOL, λSOL, is ~1-3x larger in I-modes than in H-modes at similar plasma current, which is the dominant dependence for the H-m...
متن کاملH-mode edge stability of Alcator C-mod plasmas
For steady state H-mode operation, a relaxation mechanism is required to limit build-up of the edge gradient and impurity content. C-Mod sees two such mechanisms-EDA and grassy ELMs, but not large type I ELMs. In EDA the edge relaxation is provided by an edge localized quasicoherent electromagnetic mode that exists at moderate pedestal temperature T< 400 eV, high pedestal density and high edge ...
متن کاملStudies of turbulence and transport in Alcator C-Mod H- mode plasmas with phase contrast imaging and comparisons with GYRO
Citation Lin, L. et al. " Studies of turbulence and transport in Alcator C-Mod H-mode plasmas with phase contrast imaging and comparisons with GYRO. Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. The MIT Faculty has made this article openly available. Please share how this access ...
متن کاملI-Mode: An H-Mode Energy Confinement Regime with L-Mode Particle Transport in Alcator C-Mod
An improved energy confinement regime, I-mode is studied in Alcator C-Mod, a compact high-field divertor tokamak using Ion Cyclotron Range of Frequencies (ICRF) auxiliary heating. I-mode features an edge energy transport barrier without an accompanying particle barrier, leading to several performance benefits. H-mode energy confinement is obtained without core impurity accumulation, resulting i...
متن کاملH Mode Confinement in Alcator C-mod
A series of experiments, examining the confinement properties of ion cyclotron range of frequencies (ICRF) heated H mode plasmas, has been carried out on the Alcator C-Mod tokamak. Alcator C-Mod is a compact tokamak that operates at high particle, power and current densities at toroidal fields up to 8 T. Under these conditions the plasma is essentially thermal with very little contribution to t...
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ژورنال
عنوان ژورنال: Physics of Plasmas
سال: 2018
ISSN: 1070-664X,1089-7674
DOI: 10.1063/1.5018741