A brief history of negative triangularity tokamak plasmas
A Marinoni, O Sauter, S Coda - Reviews of Modern Plasma Physics, 2021 - Springer
This review is devoted to tokamak plasmas with a cross sectional shape featuring negative
triangularity, which appear to hold great promise as a candidate reactor configuration owing …
triangularity, which appear to hold great promise as a candidate reactor configuration owing …
Robust avoidance of edge-localized modes alongside gradient formation in the negative triangularity tokamak edge
In a series of high performance diverted discharges on DIII-D, we demonstrate that strong
negative triangularity (NT) shaping robustly suppresses all edge-localized mode (ELM) …
negative triangularity (NT) shaping robustly suppresses all edge-localized mode (ELM) …
First-principles density limit scaling in tokamaks based on edge turbulent transport and implications for ITER
A first-principles scaling law, based on turbulent transport considerations, and a
multimachine database of density limit discharges from the ASDEX Upgrade, JET, and TCV …
multimachine database of density limit discharges from the ASDEX Upgrade, JET, and TCV …
Prospects for H-mode inhibition in negative triangularity tokamak reactor plasmas
AO Nelson, C Paz-Soldan, S Saarelma - Nuclear Fusion, 2022 - iopscience.iop.org
Instability to high toroidal mode number (n) ballooning modes has been proposed as the
primary gradient-limiting mechanism for tokamak equilibria with negative triangularity …
primary gradient-limiting mechanism for tokamak equilibria with negative triangularity …
L-mode-edge negative triangularity tokamak reactor
M Kikuchi, T Takizuka, S Medvedev, T Ando… - Nuclear …, 2019 - iopscience.iop.org
The negative triangularity tokamak (NTT) is a unique reactor concept based on'power-
handling-first'philosophy with the heat exhaust problem as the leading concern. The present …
handling-first'philosophy with the heat exhaust problem as the leading concern. The present …
H-mode grade confinement in L-mode edge plasmas at negative triangularity on DIII-D
A Marinoni, ME Austin, AW Hyatt, ML Walker… - Physics of …, 2019 - pubs.aip.org
Plasmas with a negative triangularity shape have been created on the DIII-D tokamak that,
despite maintaining standard L-mode edge radial profiles, reach volume averaged pressure …
despite maintaining standard L-mode edge radial profiles, reach volume averaged pressure …
The E× B staircase of magnetised plasmas
G Dif-Pradalier, G Hornung, X Garbet… - Nuclear …, 2017 - iopscience.iop.org
We show that a class of near-marginal and low-collisional magnetised plasmas naturally
evolve into a globally organised state dubbed the'$\mathbf {E}\times\mathbf {B} $ staircase' …
evolve into a globally organised state dubbed the'$\mathbf {E}\times\mathbf {B} $ staircase' …
The negative triangularity tokamak: stability limits and prospects as a fusion energy system
The paper discusses edge stability, beta limits and power handling issues for negative
triangularity tokamaks. The edge magnetohydrodynamic stability is the most crucial item for …
triangularity tokamaks. The edge magnetohydrodynamic stability is the most crucial item for …
Enhancing predictive capabilities in fusion burning plasmas through surrogate-based optimization in core transport solvers
P Rodriguez-Fernandez, NT Howard, A Saltzman… - Nuclear …, 2024 - iopscience.iop.org
This work presents the PORTALS framework (Rodriguez-Fernandez et al 2022 Nucl.
Fusion62 076036), which leverages surrogate modeling and optimization techniques to …
Fusion62 076036), which leverages surrogate modeling and optimization techniques to …
The effect of triangularity on fluctuations in a tokamak plasma
M Fontana, L Porte, S Coda, O Sauter… - Nuclear …, 2017 - iopscience.iop.org
The effects of plasma shaping, in particular triangularity (δ), on temperature fluctuations in
the tokamak à configuration variable have been studied using the correlation electron …
the tokamak à configuration variable have been studied using the correlation electron …