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Mostrando ítems 1-10 de 72
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
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
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
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 ...
Artículo
Risk Mitigation for ITER by a Prolonged and Joint International Operation of JET
(Springer, 2016-02)
Prolonged operation of the Joint European Torus (JET) in a set-up involving all ITER partners will be beneficial for ITER. Experiments at JET with its ITER-like wall and using a D–T plasma mixture will help to mitigate risks ...
Artículo
Calculation of the profile-dependent neutron backscatter matrix for the JET neutron camera system
(Elsevier, 2017-11)
We investigated the dependence of the backscatter component of the neutron spectrum on the emissivity profile. We did so for the JET neutron camera system, by calculating a profile-dependent backscatter matrix for each of ...
Artículo
The global build-up to intrinsic ELM bursts and comparison with pellet triggered ELMs seen in JET
(IOP Publishing, 2017-02)
We focus on JET plasmas in which ELMs are triggered by pellets in the presence of ELMs which occur naturally. We perform direct time domain analysis of signals from fast radial field coils and toroidal full flux azimuthal ...
Artículo
Multi-machine scaling of the main SOL parallel heat flux width in tokamak limiter plasmas
(IOP Publishing, 2016-07)
As in many of today’s tokamaks, plasma start-up in ITER will be performed in limiter configuration on either the inner or outer midplane first wall (FW). The massive, beryllium armored ITER FW panels are toroidally shaped ...
Artículo
Overview of the JET ITER-like wall divertor
(Elsevier, 2017-08)
The work presented draws on new analysis of components removed following the second JET ITER-like wall campaign 2013–14 concentrating on the upper inner divertor, inner and outer divertor corners, life- time issues relating ...