0000000000755228

AUTHOR

Rok Zaplotnik

showing 2 related works from this author

Evolution of nitrogen concentration and ammonia production in N 2 -seeded H-mode discharges at ASDEX Upgrade

2019

Ammonia formation was studied in a series of dedicated nitrogen seeded H-mode discharges at ASDEX Upgrade. The evolution of ammonia formation was investigated with a reference phase before the seeding, and a long, stable flat-top nitrogen-seeded phase. It was monitored with divertor spectroscopy and analysis of the exhaust gas. The amount of the detected ammonia increased continuously over the course of five discharges with the same nitrogen seeding rate. The same trend was observed in the nitrogen density in the core plasma, as measured by charge exchange recombination spectroscopy and other signals, linked to the effects of nitrogen seeding. The results show that the rate of ammonia forma…

Nuclear and High Energy Physicsammonia; ASDEX Upgrade; mass spectrometry; nitrogen seeding; plasma-surface interaction; residual gas analysisnitrogen seedingDivertorresidual gas analysisAnalytical chemistryExhaust gaschemistry.chemical_elementCondensed Matter Physicsammonia01 natural sciencesNitrogen010305 fluids & plasmasAmmonia productionAmmoniachemistry.chemical_compoundchemistryASDEX Upgrade0103 physical sciencesSeedingASDEX Upgradeplasma-surface interaction010306 general physicsSpectroscopymass spectrometryNuclear Fusion
researchProduct

Plasma-wall interaction studies within the EUROfusion consortium: Progress on plasma-facing components development and qualification

2017

This work has been carried out within the framework of the EUROfusion Consortium and has received funding from the Euratom research and training programme 2014-2018 under grant agreement No 633053. The views and opinions expressed herein do not necessarily reflect those of the European Commission.

plasma-facing components ; plasma-surface interaction ; power exhaust ; particle exhaust ; tungsten ; berylliumNuclear and High Energy PhysicstungstenNuclear engineeringPlasma surface interactionparticle exhaustplasma-facing components01 natural sciences114 Physical sciences010305 fluids & plasmas0103 physical sciences:NATURAL SCIENCES:Physics [Research Subject Categories]ddc:530beryllium; particle exhaust; plasma-facing components; plasma-surface interaction; power exhaust; tungsten; Nuclear and High Energy Physics; Condensed Matter Physics010306 general physicsplasma-surface interaction;particle exhaust;tungsten;beryllium;power exhaust;plasma-facing componentspower exhaustPhysicsPlasma16. Peace & justiceberylliumCondensed Matter PhysicsInteraction studiesEnvironmental science[PHYS.PHYS.PHYS-CHEM-PH]Physics [physics]/Physics [physics]/Chemical Physics [physics.chem-ph]plasma-surface interaction
researchProduct