Buscar
Mostrando ítems 1-10 de 20
Artículo
Modelling of the effect of ELMs on fuel retention at the bulk W divertor of JET
(Elsevier, 2019-05)
Effect of ELMs on fuel retention at the bulk W target of JET ITER-Like Wall was studied with multi-scale calculations. Plasma input parameters were taken from ELMy H-mode plasma experiment. The energetic intra-ELM fuel ...
Artículo
Beryllium global erosion and deposition at JET-ILW simulated with ERO2.0
(Elsevier, 2019-01)
The recently developed Monte-Carlo code ERO2.0 is applied to the modelling of limited and diverted discharges at JET with the ITER-like wall (ILW). The global beryllium (Be) erosion and deposition is simulated and compared ...
Artículo
Impact of the JET ITER-like wall on H-mode plasma fueling
(IOP Publishing, 2017-06)
JET ITER-like wall (ILW) experiments show that the edge density evolution is strongly linked with the poloidal distribution of the ionization source. The fueling profile in the JET-ILW is more delocalized as compared to ...
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
Modelling of the JET DT Experiments in Carbon and ITER-like Wall Configurations
(Wiley Online Library, 2016-08)
In this paper numerical simulations with the self-consistent COREDIV code of the planned JET DT experiments have been performed. First, record shot from the 1997 experiments was simulated and good agreement with experimental ...
Artículo
Determination of tungsten sources in the JET-ILW divertor by spectroscopic imaging in the presence of a strong plasma continuum
(Elsevier, 2019-01)
The identification of the sources of atomic tungsten and the measurement of their radiation distribution in front of all plasma-facing components has been performed in JET with the help of two digital cameras with the same ...
Artículo
Improved ERO modelling for spectroscopy of physically and chemically assisted eroded beryllium from the JET-ILW
(Elsevier, 2016-12)
Physical and chemical assisted physical sputtering were characterised by the Be I and Be II line and BeD band emission in the observation chord measuring the sightline integrated emission in front of the inner beryllium ...
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
Plasma edge and plasma-wall interaction modelling: Lessons learned from metallic devices
(Elsevier, 2017-08)
Robust power exhaust schemes employing impurity seeding are needed for target operational scenar- ios in present day tokamak devices with metallic plasma-facing components (PFCs). For an electricity- producing fusion power ...
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 ...