Results 31 to 40 of about 20,009 (190)
Characterization of density fluctuations during the search for an I-mode regime on the DIII-D tokamak [PDF]
, 2015 The I-mode regime, routinely observed on the Alcator C-Mod tokamak, is characterized by an edge energy transport barrier without an accompanying particle barrier and with broadband instabilities, known as weakly coherent modes (WCM), believed to regulate
Burrell, K.H. +10 more
core +2 more sources
Deuterium retention behaviors of boronization films at DIII-D divertor surface
Nuclear Materials and EnergyBoron coating of plasma-facing components (PFCs) is widely used in fusion devices to form surface coatings and chemical compounds on the PFCs, thus suppressing plasma contamination by impurities such as oxygen, carbon, and tungsten.
Shota Abe +10 more
doaj +1 more source
Restoration of the DIII-D solenoid [PDF]
17th IEEE/NPSS Symposium Fusion Engineering (Cat. No.97CH36131), 2002 The DIII-D tokamak has been operated since June 1995 with constrained ohmic heating capability as imposed by the abandonment of half of it`s solenoid system due to a cooling water leak. The solenoid is comprised of A and B windings with separate multiple power leads to each. The cooling water leak occurred in the lead of the B winding.
Anderson, P.M. +3 more
openaire +2 more sources
Interpretation of runaway electron synchrotron and bremsstrahlung images
, 2017 The crescent spot shape observed in DIII-D runaway electron synchrotron radiation images is shown to result from the high degree of anisotropy in the emitted radiation, the finite spectral range of the camera and the distribution of runaways.
Embréus, O. +4 more
core +1 more source
Dust Studies in DIII-D Tokamak [PDF]
AIP Conference Proceedings, 2008 Studies of submicron dust using Mie scattering from Nd:YAG lasers and video data of micron to sub‐millimeter sized dust on DIII‐D tokamak have provided the first data of dust sources and transport during tokamak discharges. During normal operation on DIII‐D dust observation rates are low, a few events per discharge or less.
D. L. Rudakov +19 more
openaire +1 more source
Understanding the effect resonant magnetic perturbations have on ELMs
, 2013 All current estimations of the energy released by type I ELMs indicate that, in order to ensure an adequate lifetime of the divertor targets on ITER, a mechanism is required to decrease the amount of energy released by an ELM, or to eliminate ELMs ...
Chapman, I. T. +10 more
core +1 more source
Toxins, 2019 Although the C-terminal domain (DIII) of three-domain Cry insecticidal toxins from Bacillus thuringiensis has been implicated in various biological functions, its exact role still remains to be elucidated.
Anon Thammasittirong +4 more
doaj +1 more source
Top Launch for Higher Off-axis Electron Cyclotron Current Drive Efficiency [PDF]
EPJ Web of Conferences, 2019 Efficient off-axis current drive is crucial for economic, steady-state tokamak fusion power plants. “Top Launch” electron cyclotron current drive (ECCD) is one promising method for driving strong off-axis current to achieve the desired broad current ...
Chen Xi +6 more
doaj +1 more source
Results from core-edge experiments in high Power, high performance plasmas on DIII-D
Nuclear Materials and Energy, 2017 Significant challenges to reducing divertor heat flux in highly powered near-double null divertor (DND) hybrid plasmas, while still maintaining both high performance metrics and low enough density for application of RF heating, are identified.
T.W. Petrie +16 more
doaj +1 more source
DIII-D advanced tokamak research overview [PDF]
Nuclear Fusion, 2000 Recent progress in the development of long pulse, high performance discharges on the DIII-D tokamak is reviewed. This is highlighted by a discharge achieving simultaneously a ?N H of 9, bootstrap current fraction of 0.5 and non-inductive current fraction of 0.75, sustained for 16 energy confinement times.
V.S Chan +6 more
openaire +1 more source