Results 101 to 110 of about 1,720 (162)

Studies of the pedestal structure and inter-ELM pedestal evolution in JET with the ITER-like wall [PDF]

open access: yes, 2017
The pedestal structure of type I ELMy H-modes has been analysed for JET with the ITER-like Wall (JET-ILW). The electron pressure pedestal width is independent of ρ ∗ and increases proportionally to √β pol,PED.
Abduallev, S.   +1236 more
core   +2 more sources

COREDIV modelling of JET ILW discharges with different impurity seeding: nitrogen, neon, argon and krypton

open access: yesNukleonika, 2017
Numerical simulations with the COREDIV code of JET H-mode discharges with 25 MW of auxiliary heating in the ITER-like wall (ILW) configuration with different impurity seedings – nitrogen (N), neon (Ne), argon (Ar) and krypton (Kr) – are presented.
Ivanova-Stanik Irena, Zagórski Roman,
doaj   +1 more source

Neoclassical flows in deuterium-helium plasma density pedestals

open access: yes, 2017
In tokamak transport barriers, the radial scale of profile variations can be comparable to a typical ion orbit width, which makes the coupling of the distribution function across flux surfaces important in the collisional dynamics.
Buller, Stefan   +3 more
core   +1 more source

Tungsten coatings for application in WEST project

open access: yesNuclear Materials and Energy, 2016
The WEST (Tungsten Environment in Steady-state Tokamak) project is aimed to implement and test the ITER W divertor technology in relevant plasma operation conditions.
E. Grigore   +4 more
doaj   +1 more source

Qualitative effects of resistivity in JET-ILW Europed pedestal predictions

open access: yesNuclear Fusion
The effect of resistive MHD in the pedestal predictions for JET-ILW has been investigated, using the Europed workflow (Saarelma et al 2018 Plasma Phys. Control. Fusion 60 014042) with the resistive MHD stability code CASTOR (Kerner et al 1998 J.
A. Lafay-Labrosse   +5 more
doaj   +1 more source

Characterization of detachment inferred from the Balmer line ratios in JET-ILW low-confinement mode plasmas

open access: yesNuclear Materials and Energy
Spectroscopic measurements of the hydrogenic Balmer-α and Balmer-γ line emission in JET-ILW low-confinement mode (L-mode) deuterium plasmas are used to assess the onset of volume recombination in the low-field side (LFS) divertor.
Vesa-Pekka Rikala   +19 more
doaj   +1 more source

Characterization of ion cyclotron resonance heating in presence of the ITER-like wall in JET [PDF]

open access: yes, 2012
Carbon is not compatible with the long term use required for plasma facing components in future fusion reactors of the tokamak type e.g. from the point of view of erosion and tritium retention.Wand Be were chosen as plasma facing materials for ITER.
Bobkov, V.   +27 more
core   +1 more source

Global effects on neoclassical transport in the pedestal with impurities

open access: yes, 2016
We present a numerical study of collisional transport in a tokamak pedestal in the presence of non-trace impurities, using the radially global $\delta f$ neoclassical solver PERFECT [M. Landreman et al. 2014 Plasma Phys. Control. Fusion 56 045005]. It is
Buller, S., Landreman, M., Pusztai, I.
core   +1 more source

Isotope mix effect on edge turbulent transport in pre-L–H transition conditions in JET-ILW

open access: yesNuclear Fusion
The heat flux at the edge of L-mode JET-ILW (Be wall and W divertor) pulses is studied using the gyrokinetic code Gyrokinetic Electromagnetic Numerical Experiment (GENE) in its flux-tube configuration as well as the quasi-linear turbulent transport model
G. Lo-Cascio   +7 more
doaj   +1 more source

Effect of density on peeling limited pedestals in JET-ILW, MAST-U and TCV and implications for ITER pedestal predictions

open access: yesNuclear Fusion
Plasmas with low collisionality and with the pedestal limited by peeling modes have been achieved in JET-ILW, MAST-U and TCV. The achieved electron–electron pedestal collisionality and the achieved ratio between electron separatrix density to pedestal ...
L. Frassinetti   +41 more
doaj   +1 more source

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