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Mostrando ítems 31-40 de 136
Artículo
EDGE2D-EIRENE simulations of the impact of poloidal flux expansion on the radiative divertor performance in JET
(Elsevier, 2017)
In the past at JET, with the MkI divertor, a systematic study of the influence of X-point height and poloidal flux expansion has been conducted [1,2] showing minor differences in the radiation distribution, whereas in [3] ...
Artículo
The effect of beryllium oxide on retention in JET ITER-like wall tiles
(Elsevier, 2019-05)
Preliminary results investigating the microstructure, bonding and effect of beryllium oxide formation on retention in the JET ITER-like wall beryllium tiles, are presented. The tiles have been investigated by several ...
Artículo
Three-dimensional non-linear magnetohydrodynamic modeling of massive gas injection triggered disruptions in JET
(AIP Publishing, 2015-07)
JOREK 3D non-linear MHD simulations of a D2 Massive Gas Injection (MGI) triggered disruption in JET are presented and compared in detail to experimental data. The MGI creates an overdensity that rapidly expands in the ...
Artículo
Experimental investigation of geodesic acoustic modes on JET using Doppler backscattering
(IOP Publishing, 2016-10)
Geodesic acoustic modes (GAMs) have been investigated in JET ohmic discharges using mainly Doppler backscattering. Characteristics and scaling properties of the GAM are studied. Time and spatial resolved measurements of ...
Artículo
Modelling of the JET DT Experiments in Carbon and ITER-like Wall Configurations
(Wiley Online Library, 2016-08)
In this paper numerical simulations with the self-consistent COREDIV code of the planned JET DT experiments have been performed. First, record shot from the 1997 experiments was simulated and good agreement with experimental ...
Artículo
Determination of tungsten sources in the JET-ILW divertor by spectroscopic imaging in the presence of a strong plasma continuum
(Elsevier, 2019-01)
The identification of the sources of atomic tungsten and the measurement of their radiation distribution in front of all plasma-facing components has been performed in JET with the help of two digital cameras with the same ...
Artículo
First mirror test in JET for ITER: Complete overview after three ILW campaigns
(ELSEVIER, 2019-05-19)
The First Mirror Test for ITER has been carried out in JET with mirrors exposed during (1) the third IIW campaign (11.W-3, 2015-2016, 23.33 h plasma) and (ii) all three campaigns, Le LW1 to ILW-3: 20112016 63,52 h in total. ...
Artículo
Improved ERO modelling for spectroscopy of physically and chemically assisted eroded beryllium from the JET-ILW
(Elsevier, 2016-12)
Physical and chemical assisted physical sputtering were characterised by the Be I and Be II line and BeD band emission in the observation chord measuring the sightline integrated emission in front of the inner beryllium ...
Artículo
Dynamic modelling of local fuel inventory and desorption in the whole tokamak vacuum vessel for auto-consistent plasma-wall interaction simulations
(Elsevier, 2019-05)
An extension of the SolEdge2D-EIRENE code package, named D-WEE, has been developed to add the dynamics of thermal desorption of hydrogen isotopes from the surface of plasma facing materials. To achieve this purpose, D-WEE ...
Artículo
A multi-machine scaling of halo current rotation
(IOP Publishing, 2018-01)
Halo currents generated during unmitigated tokamak disruptions are known to develop rotating asymmetric features that are of great concern to ITER because they can dynamically amplify the mechanical stresses on the ...