DIII-D
Use of Ar pellet ablation rate to estimate initial runaway electron seed population in DIII-D rapid shutdown experiments
... The electric field is then given by E φ = η j . The RE current is neglected here, i.e. RE seeds are assumed to be a small perturbation on the ohmic current during the TQ (this is supported subsequently by the result of 1 ...
18
Plasma Turbulence Imaging via Beam Emission Spectroscopy in the Core of the DIII-D Tokamak
... The newly implemented BES system has been sub- stantially upgraded from an earlier generation system at DIII-D [10, 16], and relocated to a larger laboratory to fa- cilitate further expansion. The upgraded ...
8
Protecting Against Damage from Refraction of High Power Microwaves in the DIII-D Tokamak
... A basic diagnostic, which has been in use on DIII-D for many years, is simple video imaging of the structure of the rf launchers seen through windows mounted in the launcher flange. The windows typically ...
6
Suppression and Mitigation of Edge Localized Modes in the DIII-D Tokamak with 3D Magnetic Perturbations
... in DIII-D ISS plasmas as shown in ...divertor D α signals i.e., Fig. 9 (d) and 9 (e) in these two discharges, we see that Type-I ELMs are sup- pressed immediately following the L-H transition ...
8
Protection of the DIII-D Vessel, Diagnostics and Windows from Microwaves Injected by the ECH/ECCD System
... the DIII-D tokamak plasma, with operational regimes approaching or exceeding the density limits for X-mode second harmonic resonance ...windows. DIII-D has a large array of protections to ...
5
Tests of advanced RF off-axis current drive techniques on DIII-D
... A research and development program to support the design of the high-power antenna components is ongoing at DIII-D. A test stand has been constructed with a 10 kW solid-state UHF band transmitter, a vacuum ...
6
High Field Side Lower Hybrid Current Drive Simulations for Off- axis Current Drive in DIII-D
... for DIII-D advanced tokamak discharges through utilizing advanced ray tracing and Fokker Planck simulation tools (GENRAY+CQL3D) constrained by experimental ...These DIII-D discharge ...
5
Applications of ECH on the DIII-D tokamak and projections for future ECH upgrades
... low torque, while controlling tearing modes at one or more surfaces, modelling shows that the power of the ECH system will need to be upgraded to 15 MW. This can be done most cost-effectively by adding two 1.5 MW ...
6
The Torroidal Plasma Current Profile Control In Diii D Tokamak
... Where represents the poloidal magnetic flux, ‘t’ is time, and is the plasma resistivity dependent on the electron temperature, , is the vacuum permeability, is the noninductive current density from neutral beam injection ...
6
Performance, diagnostics, controls and plans for the gyrotron system on the DIII-D tokamak
... The rf beams are launched in the tokamak from the mouths of oversized circular corrugated waveguides 60 mm in diameter. Each beam strikes a weakly focusing fixed mirror, which reflects it through ~ 45 ° and directs it to ...
6
Knölker, Matthias (2019): Investigation of the nonlinear phase of edge-localized-modes on the DIII-D tokamak. Dissertation, LMU München: Fakultät für Physik
... on DIII-D with MAFOT have shown that the IR heat flux footprint geometrically aligns with MAFOT predictions of field line widening at the strike point due to currents flowing through the confined plasma ...
137
Design and Performance of Microwave Components for ECH and ECE Applications at General Atomics
... Microwave technology for fusion devices has evolved considerably over the past several decades. Experience gained from the practical application of electron cyclotron heating (ECH) systems such as at ...
8
Multi-device studies of pedestal physics and confinement in the I-mode regime
... divertor D . An example is shown in Figure 10. This ‘burstiness’ in D can also be seen as an increased fluctuation level in the example of ...the D bursts are not typical Type I ...in ...
33
Fully kinetic simulation of ion-temperature-gradient instability in tokamaks
... Figure 2. Time evolution of an n = 29 linear ITG instability for DIII-D cyclone base case parameters. In the simulation, the perturbed electric potential δΦ is Fourier filtered along the toroidal direction ...
12
Stark Broadening Measurements at Low Plasma Densities using Doppler-free Saturation Spectroscopy in a Helium Discharge.
... of hydrogen lines including nonideal effects. Leonard, and the DIII-D Team. Benchmarking of alternate theories for stark broadening against experimental data from diii-d diagnostics. Gon[r] ...
214
Experimental Confinement Studies Beyond ITER
... of DIII-D tokamak ...of DIII-D tokamak, the GAM fraction decreases with an increase in zonal flow amplitude as the observation point goes ...
7
Potent Neutralizing Human Monoclonal Antibodies Preferentially Target Mature Dengue Virus Particles: Implication for Novel Strategy for Dengue Vaccine
... that DIII TS potently neutralizing MAbs require a lower occupancy on DENV2 particles to achieve 50% neutralization than CR weakly neutralizing MAbs ...that DIII potent neutralizing MAbs can achieve 50% ...
16
The Interaction of Alphavirus E1 Protein with Exogenous Domain III Defines Stages in Virus-Membrane Fusion
... of DIII blocked lipid mixing of the virus and target membranes but did not inhibit E1-membrane ...excess DIII, the E1 intermediate exhibited neither SDS nor trypsin resistance, presumably reflecting a ...
9
Mutagenesis of the DI/DIII Linker in Dengue Virus Envelope Protein Impairs Viral Particle Assembly
... Immunofluorescence analysis of E and C proteins following electroporation of cells with genomic RNAs encoding wild-type virus and DI/DIII linker mutants indicated that these two struc- tural proteins are expressed ...
12
Monoclonal Antibodies That Bind to Domain III of Dengue Virus E Glycoprotein Are the Most Efficient Blockers of Virus Adsorption to Vero Cells
... The flavivirus E glycoprotein is the primary antigen inducing protective immunity, is essential for membrane fusion, and mediates binding to cellular receptors. Therefore, this protein directly affects host range, ...
5