Overview of the SPARC tokamak
The SPARC tokamak is a critical next step towards commercial fusion energy. SPARC is
designed as a high-field () relevant to fusion power plants. SPARC's place in the path to …
designed as a high-field () relevant to fusion power plants. SPARC's place in the path to …
Overview of the SPARC physics basis towards the exploration of burning-plasma regimes in high-field, compact tokamaks
P Rodriguez-Fernandez, AJ Creely… - Nuclear …, 2022 - iopscience.iop.org
The SPARC tokamak project, currently in engineering design, aims to achieve breakeven
and burning plasma conditions in a compact device, thanks to new developments in high …
and burning plasma conditions in a compact device, thanks to new developments in high …
[HTML][HTML] DREAM: a fluid-kinetic framework for tokamak disruption runaway electron simulations
Avoidance of the harmful effects of runaway electrons (REs) in plasma-terminating
disruptions is pivotal in the design of safety systems for magnetic fusion devices. Here, we …
disruptions is pivotal in the design of safety systems for magnetic fusion devices. Here, we …
MHD stability and disruptions in the SPARC tokamak
SPARC is being designed to operate with a normalized beta of that rises linearly with a
change in the plasma current. Massive material injection is planned to reduce the disruption …
change in the plasma current. Massive material injection is planned to reduce the disruption …
Runaway dynamics in the DT phase of ITER operations in the presence of massive material injection
A runaway avalanche can result in a conversion of the initial plasma current into a relativistic
electron beam in high-current tokamak disruptions. We investigate the effect of massive …
electron beam in high-current tokamak disruptions. We investigate the effect of massive …
Effect of two-stage shattered pellet injection on tokamak disruptions
An effective disruption mitigation system in a tokamak reactor should limit the exposure of
the wall to localized heat losses and to the impact of high current runaway electron beams …
the wall to localized heat losses and to the impact of high current runaway electron beams …
Evaluation of the Dreicer runaway generation rate in the presence of high-impurities using a neural network
L Hesslow, L Unnerfelt, O Vallhagen… - Journal of Plasma …, 2019 - cambridge.org
Integrated modelling of electron runaway requires computationally expensive kinetic models
that are self-consistently coupled to the evolution of the background plasma parameters. The …
that are self-consistently coupled to the evolution of the background plasma parameters. The …
Disruption runaway electron generation and mitigation in the Spherical Tokamak for Energy Production (STEP)
Abstract Generation of Runaway Electrons (REs) during plasma disruptions is of great
concern for ITER and future reactors based on the tokamak concept. Unmitigated RE …
concern for ITER and future reactors based on the tokamak concept. Unmitigated RE …
Runaway electron generation during tokamak start-up
Tokamak start-up is characterized by low electron densities and strong electric fields, in
order to quickly raise the plasma current and temperature, allowing the plasma to fully ionize …
order to quickly raise the plasma current and temperature, allowing the plasma to fully ionize …
Bayesian optimization of massive material injection for disruption mitigation in tokamaks
A Bayesian optimization framework is used to investigate scenarios for disruptions mitigated
with combined deuterium and neon injection in ITER. The optimization cost function takes …
with combined deuterium and neon injection in ITER. The optimization cost function takes …