Plasma burn—mind the gap

H Meyer, STEP Plasma Team - Philosophical …, 2024 - royalsocietypublishing.org
The programme to design plasma scenarios for the Spherical Tokamak for Energy
Production (STEP), a reactor concept aiming at net electricity production, seeks to exploit the …

Flat-top plasma operational space of the STEP power plant

E Tholerus, FJ Casson, SP Marsden, T Wilson… - arXiv preprint arXiv …, 2024 - arxiv.org
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 …

Digital: accelerating the pathway

A Davis, C Waldon, SI Muldrew… - Philosophical …, 2024 - royalsocietypublishing.org
The Spherical Tokamak for Energy Production (STEP) programme is an ambitious but
challenging endeavour to design and deliver a prototype fusion power plant. It is a rapid, fast …

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 …

On the importance of parallel magnetic-field fluctuations for electromagnetic instabilities in STEP

D Kennedy, CM Roach, M Giacomin, P Ivanov… - Nuclear …, 2024 - iopscience.iop.org
This paper discusses the importance of parallel perturbations of the magnetic-field in
gyrokinetic simulations of electromagnetic instabilities and turbulence at mid-radius in the …

Simulation and analysis of a high-k electron scale turbulence diagnostic for MAST-U

DC Speirs, J Ruiz-Ruiz, M Giacomin… - arXiv preprint arXiv …, 2024 - arxiv.org
Plasma turbulence on disparate spatial and temporal scales plays a key role in defining the
level of confinement achievable in tokamaks, with the development of reduced numerical …

shear suppression of microtearing based transport in spherical tokamaks

BS Patel, MR Hardman, D Kennedy… - arXiv preprint arXiv …, 2024 - arxiv.org
Electromagnetic microtearing modes (MTMs) have been observed in many different
spherical tokamak regimes. Understanding how these and other electromagnetic modes …

NSTX-U National Research Program: White Paper in Response to Call from FESAC Sub-Committee

S Kaye, J Berkery, R Maingi, J Menard, F Parra Diaz… - 2024 - osti.gov
Both scientific and technical innovation is needed for the realization of an attractive
engineering solution for a timely and cost-effective Pilot Plant, the design and construction of …

[PDF][PDF] On the importance of parallel magnetic-field fluctuations for electromagnetic instabilities in STEP

M Giacomin, D Kennedy, FJ Casson - pure.york.ac.uk
This paper discusses the importance of parallel perturbations of the magnetic-field in
gyrokinetic simulations of electromagnetic instabilities and turbulence at mid-radius in the …