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Mostrando ítems 1-10 de 11
Artículo
Long-term fuel retention and release in JET ITER-Like Wall at ITER-relevant baking temperatures
(IOP Publishing, 2017-08)
The fuel outgassing efficiency from plasma-facing components exposed in JET-ILW has been studied at ITER-relevant baking temperatures. Samples retrieved from the W divertor and Be main chamber were annealed at 350 and ...
Artículo
Dynamics and stability of divertor detachment in H-mode plasmas on JET
(IOP Publishing, 2017-09)
The dynamics and stability of divertor detachment in N2 seeded, type-I, ELMy H-mode plasmas with dominant NBI heating in the JET ITER-like wall device is studied by means of an integrated analysis of diagnostic data from ...
Artículo
Overview of progress in European medium sized tokamaks towards an integrated plasma-edge/wall solution
(IOP Publishing, 2017)
Integrating the plasma core performance with an edge and scrape-off layer (SOL) that leads to tolerable heat and particle loads on the wall is a major challenge. The new European medium size tokamak task force (EU-MST) ...
Artículo
Tritium distributions on W-coated divertor tiles used in the third JET ITER-like wall campaign
(Elsevier, 2019-01)
Tritium (T) distributions on tungsten (W)-coated plasma-facing tiles used in the third ITER-like wall campaign (2015-2016) of the Joint European Torus (JET) were examined by means of an imaging plate technique and beta-ray ...
Artículo
Material migration and fuel retention studies during the JET carbon divertor campaigns
(Elsevier, 2019-01)
The first divertor was installed in the JET machine between 1992 and 1994 and was operated with carbon tiles and then beryllium tiles in 1994-5. Post-mortem studies after these first experiments demonstrated that most of ...
Artículo
On the role of finite grid extent in SOLPS-ITER edge plasma simulations for JET H-mode discharges with metallic wall
(Elsevier, 2018-12)
The impact of the finite grid size in SOLPS-ITER edge plasma simulations is assessed for JET H-mode discharges with a metal wall. For a semi-horizontal divertor configuration it is shown that the separatrix density is at ...
Artículo
WEST Physics Basis
(IOP Publishing, 2015)
With WEST (Tungsten Environment in Steady State Tokamak) (Bucalossi et al 2014 Fusion Eng. Des. 89 907-12), the Tore Supra facility and team expertise (Dumont et al 2014 Plasma Phys. Control. Fusion 56 075020) is used to ...
Artículo
EDGE2D-EIRENE simulations of the influence of isotope effects and anomalous transport coefficients on near scrape-off layer radial electric field
(IOP Publishing, 2019-04-04)
EDGE2D-EIRENE (the ‘code’) simulations show that radial electric field, Er, in the near scrape-off layer (SOL) of tokamaks can have large variations leading to a strong local E × B shear greatly exceeding that in the core ...
Artículo
Possible influence of near SOL plasma on the H-mode power threshold
(Elsevier, 2017)
A strong effect of divertor configuration on the threshold power for the L-H transition (P LH ) was observed in recent JET experiments in the new ITER-like Wall (ILW) [1–3] . Following a series of EDGE2D-EIRENE code ...
Artículo
An assessment of nitrogen concentrations from spectroscopic measurements in the JET and ASDEX upgrade divertor
(Elsevier, 2019-01)
The impurity concentration in the tokamak divertor plasma is a necessary input for predictive scaling of divertor detachment, however direct measurements from existing tokamaks in different divertor plasma conditions are ...