Elements of H-mode pedestal structure
RJ Groebner, S Saarelma - Plasma Physics and Controlled …, 2023 - iopscience.iop.org
This paper reviews current understanding of key physics elements that control the H-mode
pedestal structure, which exists at the boundary of magnetically confined plasmas. The …
pedestal structure, which exists at the boundary of magnetically confined plasmas. The …
Gaussian process regression models for the properties of micro-tearing modes in spherical tokamaks
Spherical tokamaks have many desirable features that make them an attractive choice for a
future fusion power plant. Power-plant viability is intrinsically related to plasma heat and …
future fusion power plant. Power-plant viability is intrinsically related to plasma heat and …
On electromagnetic turbulence and transport in STEP
In this work, we present first-of-their-kind nonlinear local gyrokinetic (GK) simulations of
electromagnetic turbulence at mid-radius in the burning plasma phase of the conceptual …
electromagnetic turbulence at mid-radius in the burning plasma phase of the conceptual …
Gyrokinetic analysis of inter-edge localized mode transport mechanisms in a DIII-D pedestal
MR Halfmoon, DR Hatch, MT Kotschenreuther… - Physics of …, 2022 - pubs.aip.org
In this study, gyrokinetic simulations are used to study pedestal fluctuations for DIII-D
discharge 174082 using the GENE code. Nonlinear local simulations indicate that electron …
discharge 174082 using the GENE code. Nonlinear local simulations indicate that electron …
Modeling electron temperature profiles in the pedestal with simple formulas for ETG transport
This paper reports on the refinement (building on (Hatch DR et al 2022 Phys. Plasmas29
062501)) and application of simple formulas for electron heat transport from electron …
062501)) and application of simple formulas for electron heat transport from electron …
Micro-tearing mode dominated electron heat transport in DIII-D H-mode pedestal
A new, comprehensive set of evidence reveals that Micro-Tearing Modes (MTMs) dominate
pedestal electron heat transport in an H-mode experiment in the DIII-D tokamak. The …
pedestal electron heat transport in an H-mode experiment in the DIII-D tokamak. The …
Gyrokinetic simulations compared with magnetic fluctuations diagnosed with a Faraday-effect radial interferometer-polarimeter in the DIII-D pedestal
Experimental data on electromagnetic fluctuations in DIII-D, made available by the Faraday-
effect radial interferometer-polarimeter (RIP) diagnostic Chen (2016 Rev. Sci. Instrum. 87 …
effect radial interferometer-polarimeter (RIP) diagnostic Chen (2016 Rev. Sci. Instrum. 87 …
Electromagnetic gyrokinetic instabilities in the Spherical Tokamak for Energy Production (STEP) part II: transport and turbulence
In this work, we present the results of first-of-their-kind nonlinear local gyrokinetic
simulations of electromagnetic turbulence at mid-radius in the burning plasma phase of the …
simulations of electromagnetic turbulence at mid-radius in the burning plasma phase of the …
[HTML][HTML] Global micro-tearing modes in the wide pedestal of an NSTX plasma
J Dominski, W Guttenfelder, D Hatch, T Goerler… - Physics of …, 2024 - pubs.aip.org
Global linear electromagnetic gyrokinetic simulations of micro-tearing modes (MTMs)
growing in the wide pedestal of the ELM-free NSTX discharge# 132 588 are reported. Two …
growing in the wide pedestal of the ELM-free NSTX discharge# 132 588 are reported. Two …
A quasi-linear model of electromagnetic turbulent transport and its application to flux-driven transport predictions for STEP
M Giacomin, D Dickinson, W Dorland… - arXiv preprint arXiv …, 2024 - arxiv.org
A quasi-linear reduced transport model is developed from a database of high-$\beta $
electromagnetic nonlinear gyrokinetic simulations performed with Spherical Tokamak for …
electromagnetic nonlinear gyrokinetic simulations performed with Spherical Tokamak for …