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Scrape-off layer ion temperature measurements at the divertor target during type III and type I ELMs in MAST measured by RFEA
- Publication Year :
- 2016
- Publisher :
- arXiv, 2016.
-
Abstract
- In future nuclear fusion reactors high heat load events, such as edge-localised modes (ELMs), can potentially damage divertor materials and release impurities into the main plasma, limiting plasma performance. The most difficult to handle are type I ELMs since they carry the largest fraction of energy from the plasma and therefore deposit the largest heat flux at the target and on first wall materials. Knowing the temperature of the ions released from ELM events is important since it determines the potential sputtering they would cause from plasma facing materials. To make measurements of Ti by retarding field energy analyser (RFEA) during type I ELMs a new operational technique has been used to allow faster measurements to be made; this is called the fast swept technique (FST).<br />Comment: 20 pages, 12 figures. This is an author-created, un-copyedited version of an article submitted for publication in Plasma Physics and Controlled Fusion. IoP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it
- Subjects :
- Nuclear and High Energy Physics
Materials science
Tokamak
Analyser
FOS: Physical sciences
Ion temperature
01 natural sciences
010305 fluids & plasmas
Ion
law.invention
Sputtering
Impurity
law
0103 physical sciences
Nuclear fusion
General Materials Science
010306 general physics
Ion energy
Chemistry
Divertor
Plasma
Condensed Matter Physics
Physics - Plasma Physics
Computational physics
Plasma Physics (physics.plasm-ph)
Field energy
Heat flux
Nuclear Energy and Engineering
Atomic physics
Subjects
Details
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....04c31ec998da2fe80127975c63ede95a
- Full Text :
- https://doi.org/10.48550/arxiv.1602.03015