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Mostrando ítems 1-10 de 13
Artículo
Challenges in the extrapolation from DD to DT plasmas: experimental analysis and theory based predictions for JET-DT
(IOP Publishing, 2017-01)
A strong modelling program has been started in support of the future JET-DT campaign with the aim of guiding experiments in deuterium (D) towards maximizing fusion energy production in Deuterium–Tritium (DT). Some of the ...
Artículo
Multi-machine scaling of the main SOL parallel heat flux width in tokamak limiter plasmas
(IOP Publishing, 2016-07)
As in many of today’s tokamaks, plasma start-up in ITER will be performed in limiter configuration on either the inner or outer midplane first wall (FW). The massive, beryllium armored ITER FW panels are toroidally shaped ...
Artículo
Deposition in the inner and outer corners of the JET divertor with carbon wall and metallic ITER-like wall
(IOP Publishing, 2016-02)
Rotating collectors and quartz microbalances (QMBs) are used in JET to provide time-dependent measurements of erosion and deposition. Rotation of collector discs behind apertures allows recording of the long term evolution ...
Artículo
L to H mode transition: parametric dependencies of the temperature threshold
(IOP Publishing, 2015-07)
The L to H mode transition occurs at a critical power which depends on various parameters, such as the magnetic field, the density, etc. Experimental evidence on various tokamaks (JET, ASDEX-Upgrade, DIII-D, Alcator C-Mod) ...
Artículo
The I-mode confinement regime at ASDEX Upgrade: global propert ies and characterization of strongly intermittent density fluctuations
(IOP Publishing, 2017)
Properties of the Imode confinement regime on the ASDEX Upgrade tokamak are summarized. A weak dependence of the power threshold for the LI transition on the toroidal magnetic field strength is found. During improved ...
Artículo
Physics and operation oriented activities in preparation of the JT-60SA tokamak exploitation
(IOP Publishing, 2017-08)
The JT-60SA tokamak, being built under the Broader Approach agreement jointly by Europe and Japan, is due to start operation in 2020 and is expected to give substantial contributions to both ITER and DEMO scenario ...
Artículo
Upgrade of the tangential gamma-ray spectrometer beam-line for JET DT experiments
(Elsevier, 2017-11)
The JET tangential gamma-ray spectrometer is undergoing an extensive upgrade in order to make itcompatible with the forthcoming deuterium-tritium (DT) experiments. The paper presents the resultsof the design for the main ...
Artículo
I-mode studies at ASDEX Upgrade: L-I and I-H transitions, pedestal and confinement properties
(IOP Publishing, 2017)
The I-mode is a plasma regime obtained when the usual L-H power threshold is high, e.g. with unfavourable ion B ∇ direction. It is characterised by the development of a temperature pedestal while the density remains ...
Artículo
A 3D electromagnetic model of the iron core in JET
(Elsevier, 2017-11)
The Magnet and Power Supplies system in JET includes a ferromagnetic core able to increase the trans-former effect by improving the magnetic coupling with the plasma. The iron configuration is based onan inner cylindrical ...
Artículo
High power neon seeded JET discharges: Experiments and simulations
(Elsevier, 2017-08)
A series of neon seeded JET ELMy H-mode pulses is considered from the modeling as well as from the experimental point of view. For two different Ne seeding rates and two different D puffing gas levels the heating power, P ...