activity
20102024
most citedKinetic instabilities that limit β in the edge of a tokamak plasma: a picture of an H-mode pedestal

149 citations · 1.1k across the 33 of their papers we have counts for

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physics.plasm-ph2024

shear suppression of microtearing based transport in spherical tokamaks

B. S. Patel, M. R. Hardman, D. Kennedy +3

Electromagnetic microtearing modes (MTMs) have been observed in many different spherical tokamak regimes. Understanding how these and other electromagnetic modes nonlinearly satura…

physics.plasm-ph2024★ 35 cited

Flat-top plasma operational space of the STEP power plant

E. Tholerus, F. J. Casson, S. P. Marsden +16

STEP is a spherical tokamak prototype power plant that is being designed to demonstrate net electric power. The design phase involves the exploitation of plasma models to optimise…

physics.plasm-ph2023★ 29 cited

Electromagnetic gyrokinetic instabilities in STEP

Daniel Kennedy, Maurizio Giacomin, Francis J Casson +4

We present herein the results of a linear gyrokinetic analysis of electromagnetic microinstabilites in the conceptual high-, reactor-scale, tight-aspect-ratio tokamak STEP (Sphe…

physics.plasm-ph2023★ 23 cited

On electromagnetic turbulence and transport in STEP

Maurizio Giacomin, Daniel Kennedy, Francis J Casson +4

In this work, we present first-of-their-kind nonlinear local gyrokinetic simulations of electromagnetic turbulence at mid-radius in the burning plasma phase of the conceptual high-…

physics.plasm-ph2022★ 26 cited

Three-Dimensional Inhomogeneity of Electron-Temperature-Gradient Turbulence in the Edge of Tokamak Plasmas

J. F. Parisi, F. I. Parra, C. M. Roach +15

Nonlinear multiscale gyrokinetic simulations of a Joint European Torus edge pedestal are used to show that electron-temperature-gradient (ETG) turbulence has a rich three-dimension…

physics.plasm-ph2021★ 28 cited

Linear gyrokinetic stability of a high non-inductive spherical tokamak

B. S. Patel, D. Dickinson, C. M. Roach +1

Spherical tokamaks (STs) have been shown to possess properties desirable for a fusion power plant such as achieving high plasma ? and having increased vertical stability. To unders…