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Mostrando ítems 11-20 de 36
Artículo
Comparative H-mode density limit studies in JET and AUG
(Elsevier, 2017-08)
Identification of the mechanisms for the H-mode density limit in machines with fully metallic walls, and their scaling to future devices is essential to find for these machines the optimal operational boundaries with the ...
Artículo
Determination of retained tritium from ILW dust particles in JET
(Elsevier, 2020)
Quantitative tritium inventory in dust particles from campaigns in the JET tokamak with the carbon wall (2007–2009) and the ITER-like wall (ILW 2011–2012) were determined by the liquid scintillation counter and the full ...
Artículo
An analytical expression for ion velocities at the wall including the sheath electric field and surface biasing for erosion modeling at JET ILW
(Elsevier, 2017)
For simulation of plasma-facing component erosion in fusion experiments, an analytical expression for the ion velocity just before the surface impact including the local electric field and an optional surface biasing effect ...
Artículo
Pedestal evolution physics in low triangularity JET tokamak discharges with ITER-like wall
(IOP Publishing, 2018-01)
The pressure gradient of the high confinement pedestal region at the edge of tokamak plasmas rapidly collapses during plasma eruptions called edge localised modes (ELMs), and then re-builds over a longer time scale before ...
Artículo
Dose rates and specific activities of copper based materials irradiated during the TT plasma operation at JET
(Elsevier, 2020)
Before deuterium-tritium (DTE2), a new tritium campaign (TT) with the objective to validate the activities, dose rates for selected materials and OLTIS container components, as resulting from neutron irradiation at ...
Artículo
Neural network approximated Bayesian inference of edge electron density profiles at JET
(IOP Publishing, 2020)
A neural network (NN) has been trained on the inference of the edge electron density profiles from measurements of the JET lithium beam emission spectroscopy (Li-BES) diagnostic. The novelty of the approach resides in ...
Artículo
Overview of the JET results
(IOP Publishing, 2015)
Since the installation of an ITER-like wall, the JET programme has focused on the consolidation of ITER design choices and the preparation for ITER operation, with a specific emphasis given to the bulk tungsten melt ...
Artículo
The preparation of the Shutdown Dose Rate experiment for the next JET Deuterium-Tritium campaign
(Elsevier, 2017-11)
The assessment of the Shutdown Dose Rate (SDR) due to neutron activation is a major safety issue forfusion devices and in the last decade several benchmark experiments have been conducted at JET duringDeuterium-Deuterium ...
Artículo
Effect of the relative shift between the electron density and temperature pedestal position on the pedestal stability in JET-ILW and comparison with JET-C
(IOP Publishing, 2018-05)
The electron temperature and density pedestals tend to vary in their relative radial positions, as observed in DIII-D (Beurskens et al 2011 Phys. Plasmas 18 056120) and ASDEX Upgrade (Dunne et al 2017 Plasma Phys. Control. ...
Artículo
Asymmetric toroidal eddy currents (ATEC) to explain sideways forces at JET
(IOP Publishing, 2016-10)
During some JET vertical displacement events (VDEs) plasma current and position are found to be toroidally asymmetric. When asymmetries lock, the vessel has been observed to move horizontally, consequently strong horizontal ...