0000000000468149

AUTHOR

P. Belo

showing 2 related works from this author

Overview of the JET results

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 experiment, which has been crucial for the final decision on the material choice for the day-one tungsten divertor in ITER. Integrated scenarios have been progressed with the re-establishment of long-pulse, high-confinement H-modes by optimizing the magnetic configuration and the use of ICRH to avoid tungsten impurity accumulation. Stationary discharges with detached divertor conditions and small edge localized modes have been demonstrated by nitrogen seeding. The differences in…

Chemical analysiMagnetic confinementEdge localized modeTokamak:Física [Ciências exactas e naturais]Nuclear engineeringplasma-facing componentsTungsten7. Clean energyiter-like walllaw.inventionheat loadsAlcator C-ModlawPlasma-facing componentalcator C-MODQCPhysicsJet (fluid)Thermally activatedDivertormagnetic confinementMagnetic confinement fusionTokamak deviceerosionCondensed Matter PhysicsChemical erosionPost mortem analysiCondensed Matter Physics; Nuclear and High Energy PhysicsBerylliumAtomic physicstokamaksTokamaksNuclear and High Energy Physicschemistry.chemical_elementImpurity accumulationCondensed Matter PhysicNuclear and High Energy Physics; Condensed Matter PhysicsTungstenFísica Física:Physical sciences [Natural sciences]divertorNuclear fusionNuclear and High Energy PhysicPhysics Physical sciencesGas fuel analysifuel retentionSettore FIS/07 - Fisica Applicata(Beni Culturali Ambientali Biol.e Medicin)operationOrders of magnitudechemistryJETtransportMagnetic configuration
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Improved EDGE2D-EIRENE simulations of JET ITER-like wall L-mode discharges utilising poloidal VUV/visible spectral emission profiles

2015

A discrepancy in the divertor radiated powers between EDGE2D-EIRENE simulations, both with and without drifts, and JET-ILW experiments employing a set of NBI-heated L-mode discharges with step-wise density variation is investigated. Results from a VUV/visible poloidally scanning spectrometer are used together with bolometric measurements to determine the radiated power and its composition. The analysis shows the importance of D line radiation in contributing to the divertor radiated power, while contributions from D radiative recombination are smaller than expected. Simulations with W divertor plates underestimate the Be content in the divertor, since no allowance is made for Be previously …

Nuclear and High Energy PhysicsJet (fluid)ta214TokamakMaterials scienceta114SpectrometerDivertorta221BolometerEffective radiated power01 natural sciences010305 fluids & plasmaslaw.inventionNuclear Energy and EngineeringlawSputtering0103 physical sciencesGeneral Materials ScienceSpontaneous emissiontokamaksAtomic physics010306 general physicsta218Journal of Nuclear Materials
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