Results 11 to 20 of about 20,009 (190)
Observation of a multimode plasma response and its relationship to density pumpout and edge-localized mode suppression [PDF]
, 2015 Density pumpout and edge-localized mode (ELM) suppression by applied n=2 magnetic fields in low-collisionality DIII-D plasmas are shown to be correlated with the magnitude of the plasma response driven on the high-field side (HFS) of the magnetic axis ...
Ferraro, N. M. +13 more
core +1 more source
ELM sputter erosion modeling of a tungsten coated small angle slot divertor in DIII-D
Nuclear Fusion, 2023 We modeled plasma edge localized mode (ELM) sputter erosion for a Small Angle Slot divertor with a tungsten coated region (SAS-VW), designed for experiments in the DIII-D tokamak, and proposed for use in future advanced tokamaks.
J.N. Brooks +4 more
doaj +1 more source
Turbulent transport of impurities and their effect on energy confinement [PDF]
, 2012 By presenting linear and nonlinear gyrokinetic studies, based on a balanced neutral beam injection deuterium discharge from the DIII-D tokamak, we demonstrate that impurities alter the scaling of the transport on the charge and mass of the main species ...
Candy, J. +3 more
core +2 more sources
The DIII-D cryogenic system upgrade [PDF]
15th IEEE/NPSS Symposium. Fusion Engineering, 1993 The original DIII-D cryogenic system was commissioned in 1981 and was used to cool the cryopanel arrays for three hydrogen neutral beam injectors. Since then, new demands for liquid helium have arisen including: a fourth neutral beam injector, ten superconducting magnets for the electron cyclotron heating gyrotrons, and more recently, the advanced ...
Schaubel, K. M. +5 more
openaire +3 more sources
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
doaj +1 more source
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
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
doaj +1 more source
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
doaj +1 more source
Synchrotron radiation from a runaway electron distribution in tokamaks [PDF]
, 2013 The synchrotron radiation emitted by runaway electrons in a fusion plasma provides information regarding the particle momenta and pitch-angles of the runaway electron population through the strong dependence of the synchrotron spectrum on these ...
A. Stahl +6 more
core +2 more sources
Performance, diagnostics, controls and plans for the gyrotron system on the DIII-D tokamak
EPJ Web of Conferences, 2012 The DIII-D ECH complex is being upgraded with three new depressed collector gyrotrons. The performance of the existing system has been very good.
Ponce D.M. +12 more
doaj +1 more source