Results 41 to 50 of about 15,788,610 (233)
UEDGE-predicted impact of molecules on low-field side target detachment in DIII–D
Nuclear Materials and Energy, 2019 The impact of fluid molecules on detachment was studied using the edge fluid code UEDGE for a set of DIII–D L-mode plasmas with varying degree of low-field side (LFS) target detachment.
A. Holm, M. Groth, T.D. Rognlien
doaj +1 more source
Control of neoclassical tearing modes in DIII–D [PDF]
Physics of Plasmas, 2002 The development of techniques for neoclassical tearing mode (NTM) suppression or avoidance is crucial for successful high beta/high confinement tokamaks. Neoclassical tearing modes are islands destabilized and maintained by a helically perturbed bootstrap current and represent a significant limit to performance at higher poloidal beta.
La Haye, R. J. +9 more
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Tests of advanced RF off-axis current drive techniques on DIII-D [PDF]
EPJ Web of Conferences, 2019 The establishment of reactor-relevant radiofrequency heating and current drive techniques is a focus of work on DIII-D in the next five-year period.
Pinsker R.I. +9 more
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Nuclear Materials and Energy, 2023 An experiment was performed in the DIII-D lower divertor to validate numerical SOL tungsten (W) impurity erosion and redeposition simulations against experimental data. The net and gross erosion of W were calculated as a function of the voltage (or bias)
L. Cappelli +14 more
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The density dependence of edge-localized-mode suppression and pump-out by resonant magnetic perturbations in the DIII-D tokamak [PDF]
Physics of Plasmas, 2019 The density dependence of edge-localized-mode (ELM) suppression and density pump-out (density reduction) by n = 2 resonant magnetic perturbations (RMPs) is consistent with the effects of narrow well-separated magnetic islands at the top and bottom of the
Q. Hu +6 more
semanticscholar +1 more source
Performance History and Upgrades for the DIII-D Gyrotron Complex
EPJ Web of Conferences, 2015 The gyrotron installation on the DIII-D tokamak has been in operation at the second harmonic of the electron cyclotron resonance since the mid-1990s. Prior to that a large installation of ten 60 GHz tubes was operated at the fundamental resonance.
Lohr J. +12 more
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SiC as a core-edge integrated wall solution in DIII-D
Nuclear Materials and Energy, 2023 Silicon carbide (SiC) is a promising material for use in a fusion reactor due to its low hydrogenic diffusivity, high temperature strength and resilience under neutron irradiation [1,2].
S. Zamperini +8 more
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Physics of Plasmas, 2020 Impurity seeding studies in the small angle slot (SAS) divertor at DIII-D have revealed a strong relationship between the detachment onset and pedestal characteristics with both target geometry and impurity species.
L. Casali +8 more
semanticscholar +1 more source
Supplemental ELM control in ITER through beryllium granule injection
Nuclear Materials and Energy, 2019 Injection of low-Z granules into high performance discharges on DIII-D has been shown to promptly trigger Edge Localized Modes (ELMs) providing high-Z impurity control without significant plasma degradation.
R. Lunsford +6 more
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DIII-D research operations [PDF]
, 1993 This report discusses the research on the following topics: DIII-D program overview; divertor and boundary research program; advanced tokamak studies; tokamak physics; operations; program development; support services; contribution to ITER physics R D; and collaborative efforts.
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