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Mostrando ítems 21-30 de 244
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
A fast model to resolve the velocity-space of fast-ion losses detected in ASDEX Upgrade and MAST Upgrade
(Institute of Physics Publishing, 2019)
A forward model to resolve the fast-ion loss velocity-space on a fast-ion loss detector (FILD) probe head (FILDSIM) has been extended, making it possible to perform real-time analysis of the FILD data ("real-time FILDSIM"). ...
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 ...
Artículo
Deposition in the inner and outer corners of the JET divertor with carbon wall and metallic ITER-like wall
(IOP Publishing, 2016-02)
Rotating collectors and quartz microbalances (QMBs) are used in JET to provide time-dependent measurements of erosion and deposition. Rotation of collector discs behind apertures allows recording of the long term evolution ...
Artículo
Fuel inventory and deposition in castellated structures in JET-ILW
(IOP Publishing, 2017-06)
Since 2011 the JET tokamak has been operated with a metal ITER-like wall (JET-ILW) including castellated beryllium limiters and lamellae-type bulk tungsten tiles in the divertor. This has allowed for a large scale test ...
Artículo
Nonlinear alfvenic fast particle transport and losses
(IOP Publishing, 2012)
Magnetohydrodynamic instabilities like Toroidal Alfvén Eigenmodes or core-localized modes such as Beta Induced Alfvén Eigenmodes and Reversed Shear Alfvén Eigenmodes driven by fast particles can lead to significant ...
Artículo
Erosion at the inner wall of JET during the discharge campaign 2013-2014
(Elsevier, 2017-05)
The erosion of Be and W marker layers was investigated using long-term samples containing marker lay- ers during the second ITER-like wall discharge campaign 2013–2014 (ILW-2). The samples were mounted in Be coated Inconel ...
Artículo
Inferring divertor plasma properties from hydrogen Balmer and Paschen series spectroscopy in JET-ILW
(IOP Publishing, 2015-12)
A parametrised spectral line profile model is formulated to investigate the diagnostic scope for recovering plasma parameters from hydrogenic Balmer and Paschen series spectroscopy in the context of JET-ILW divertor ...
Artículo
Combination of fast-ion diagnostics in velocity-space tomographies
(IOP Publishing, 2013-06)
Fast-ion Dα (FIDA) and collective Thomson scattering (CTS) diagnostics provide indirect measurements of fastion velocity distribution functions in magnetically confined plasmas. Here we present the first prescription ...
Artículo
Ionoluminescent response of several phosphor screens to keV ions of different masses
(AIP Publishing, 2008-09-15)
We have characterized the ionoluminescent response of several phosphor powder materials when irradiated with ions of different masses H+ ,He+ ,Ar+ accelerated to keV energies. In particular, we have determined the ...