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Mostrando ítems 1-10 de 200
Artículo
Energetic particle acceleration and transport by Alfven/acoustic waves in tokamak-like Solar flares
(Cambridge University Press, 2011)
Alfv´en/acoustic waves are ubiquitous in astrophysical as well as in laboratory plasmas. Their interplay with energetic ions is of crucial importance to understanding the energy and particle exchange in astrophysical ...
Artículo
Challenges in the extrapolation from DD to DT plasmas: experimental analysis and theory based predictions for JET-DT
(IOP Publishing, 2017-01)
A strong modelling program has been started in support of the future JET-DT campaign with the aim of guiding experiments in deuterium (D) towards maximizing fusion energy production in Deuterium–Tritium (DT). Some of the ...
Artículo
Quartz micro-balance results of pulse-resolved erosion/deposition in the JET-ILW divertor
(Elsevier, 2017)
A set of quartz crystal microbalances (QMB) was used at JET with full carbon wall to monitor mass ero- sion/deposition rates in the remote areas of the divertor. After introduction of the ITER- like wall (ILW) in JET with ...
Artículo
Near midplane scintillator-based fast ion loss detector on DIII-D
(America Institute of Physics, 2012)
A new scintillator-based fast-ion loss detector (FILD) installed near the outer midplane of the plasma has been commissioned on DIII-D. This detector successfully measures coherent fast ion losses produced by fast-ion ...
Artículo
Beryllium film deposition in cavity samples in remote areas of the JET divertor during the 2011-2012 ITER-like wall campaign
(Elsevier, 2017-08)
Beryllium film deposition was studied with cavity samples in remote areas of the inner and outer JET divertor and below divertor tile 5 during the 2011–2012 campaign with the ITER-like wall. Predominantly beryllium films ...
Artículo
Comparison of runaway electron generation parameters in small, medium-sized and large tokamaks-A survey of experiments in COMPASS, TCV, ASDEX-Upgrade and JET
(IOP Publishing, 2018-01)
This paper presents a survey of the experiments on runaway electrons (RE) carried out recently in frames of EUROFusion Consortium in different tokamaks: COMPASS, ASDEXUpgrade, TCV and JET. Massive gas injection (MGI) has ...
Artículo
Heat flux analysis of Type-I ELM impact on a sloped, protruding surface in the JET bulk tungsten divertor
(Elsevier, 2018-12)
Tungsten (W) melting due to transient power loads, for example those delivered by edge localised modes (ELMs), is a major concern for next step fusion devices. A series of experiments has been performed on JET to investigate ...
Artículo
Experimental estimation of tungsten impurity sputtering due to Type I ELMs in JET-ITER-like wall using pedestal electron cyclotron emission and target Langmuir probe measurements
(IOP Publishing, 2016-02)
The ITER baseline scenario, with 500 MW of DT fusion power and Q = 10, will rely on a Type I ELMy H-mode and will be achieved with a tungsten (W) divertor. W atoms sputtered from divertor targets during mitigated ELMs ...
Artículo
Scrape-off layer ion acceleration during fast wave injection in the DIII-D tokamak
(IOP Publishing, 2012-06)
Fast wave injection is employed on the DIII-D tokamak as a current drive and electron heating method. Bursts of energetic ions with energy Eo > 20 keV are observed immediately following fast wave injection in experiment ...
Artículo
Expanding the role of impurity spectroscopy for investigating the physics of high-Z dissipative divertors
(Elsevier, 2017-08)
New techniques that attempt to more fully exploit spectroscopic diagnostics in the divertor and pedestal region during highly dissipative scenarios are demonstrated using experimental results from recent low-Z seeding ...