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) …
Orchestrating TRANSP simulations for interpretative and predictive tokamak modeling with OMFIT
BA Grierson, X Yuan, M Gorelenkova… - Fusion Science and …, 2018 - Taylor & Francis
TRANSP simulations are being used in the OMFIT workflow manager to enable a machine-
independent means of experimental analysis, postdictive validation, and predictive time …
independent means of experimental analysis, postdictive validation, and predictive time …
CAKE: consistent automatic kinetic equilibrium reconstruction
Magnetohydrodynamic equilibrium reconstructions with kinetic constraints are an essential
input of many tokamak stability and transport analysis workflows. The reconstructions …
input of many tokamak stability and transport analysis workflows. The reconstructions …
The effect of plasma shape and neutral beam mix on the rotation threshold for RMP-ELM suppression
Varying the neutral beam injection (NBI) mix reveals a clear pedestal-top rotation threshold
for edge localized mode (ELM) suppression by resonant magnetic perturbations (RMPs) …
for edge localized mode (ELM) suppression by resonant magnetic perturbations (RMPs) …
Time-dependent experimental identification of inter-ELM microtearing modes in the tokamak edge on DIII-D
In a series of discharges on the DIII-D tokamak, fast vertical plasma jogs are used to induce
current perturbations in the steep gradient region of the H-mode edge. These current …
current perturbations in the steep gradient region of the H-mode edge. These current …
Main ion and impurity edge profile evolution across the L-to H-mode transition on DIII-D
Detailed measurements of the main ion (${D}^{+} $) and impurity ion (${C}^{6+} $) evolution
during the development of the H-mode pedestal across an L–H transition show significant …
during the development of the H-mode pedestal across an L–H transition show significant …
[HTML][HTML] Active spectroscopy measurements of the deuterium temperature, rotation, and density from the core to scrape off layer on the DIII-D tokamak
Main-ion charge exchange recombination spectroscopy (MICER) uses the neutral beam
induced D α spectrum to measure the local deuterium ion (D+) temperature, rotation, and …
induced D α spectrum to measure the local deuterium ion (D+) temperature, rotation, and …
Central ion cyclotron emission in the DIII-D tokamak
KE Thome, DC Pace, RI Pinsker… - Nuclear …, 2019 - iopscience.iop.org
Collective ion cyclotron emission (ICE) at the ion cyclotron frequency and its harmonics is a
potential passive diagnostic of the fast-ion distribution in fusion reactors. ICE is observed in …
potential passive diagnostic of the fast-ion distribution in fusion reactors. ICE is observed in …
Role of microtearing turbulence in DIII-D high bootstrap current fraction plasmas
We report on the first direct comparisons of microtearing turbulence simulations to
experimental measurements in a representative high bootstrap current fraction (f BS) …
experimental measurements in a representative high bootstrap current fraction (f BS) …
Neural-network accelerated coupled core-pedestal simulations with self-consistent transport of impurities and compatible with ITER IMAS
O Meneghini, G Snoep, BC Lyons… - Nuclear …, 2020 - iopscience.iop.org
An integrated modeling workflow capable of finding the steady-state plasma solution with
self-consistent core transport, pedestal structure, current profile, and plasma equilibrium …
self-consistent core transport, pedestal structure, current profile, and plasma equilibrium …