Results 31 to 40 of about 18,296 (224)
Tungsten impurity transport experiments in Alcator C-Mod to address high priority research and development for ITERa) [PDF]
Physics of Plasmas, 2015 Experiments in Alcator C-Mod tokamak plasmas in the Enhanced D-alpha H-mode regime with ITER-like mid-radius plasma density peaking and Ion Cyclotron Resonant heating, in which tungsten is introduced by the laser blow-off technique, have demonstrated that accumulation of tungsten in the central region of the plasma does not take place in these ...
Loarte, A. +13 more
openaire +3 more sources
Intervalley Scattering and Localization Behaviors of Spin-Valley Coupled Dirac Fermions [PDF]
, 2013 We study the quantum diffusive transport of multivalley massive Dirac cones, where time-reversal symmetry requires opposite spin orientations in inequivalent valleys. We show that the intervalley scattering and intravalley scattering can be distinguished
Lu, Hai-Zhou +3 more
core +2 more sources
Global modelling of tungsten impurity transport based on the drift-kinetic equation
Nuclear Fusion, 2019 A global kinetic simulation model of collisional impurity transport is developed for evaluating the radial particle flux of tungsten impurity in the edge region of a tokamak plasma. Here, the plasma including the impurity and the background ion is presupposed to be quasi-steady.
Ryutaro Kanno +5 more
openaire +1 more source
Gaussian process tomography for soft x-ray spectroscopy at WEST without equilibrium information [PDF]
, 2018 International audienceGaussian process tomography (GPT) is a recently developed tomography method based on the Bayesian probability theory [J. Svensson, JET Internal Report EFDA-JET-PR(11)24, 2011 and Li et al., Rev. Sci. Instrum. 84, 083506 (2013)].
Jardin, A. +5 more
core +3 more sources
Plasma Physics and Controlled Fusion, 2020 Abstract Long-lived metastable states in neutral tungsten are shown to potentially impact measurements of tungsten erosion from plasma facing components. Time-dependent collisional radiative modeling of neutral tungsten is used to analyze the role of these states in tungsten emission and ionization.
C A Johnson, S D Loch, D A Ennis
openaire +2 more sources
Incorporating non-adiabatic effects in Embedded Atom potentials for radiation damage cascade simulations [PDF]
, 2015 In radiation damage cascade displacement spikes ions and electrons can reach very high temperatures and be out of thermal equilibrium. Correct modelling of cascades with molecular dynamics should allow for the non-adiabatic exchange of energy between ...
Mason, Daniel
core +1 more source
, 2018 Access conditions for full suppression of Edge Localised Modes (ELMs) by Magnetic Perturbations (MP) in low density high confinement mode (H-mode) plasmas are studied in the ASDEX Upgrade tokamak.
Bobkov, V. +11 more
core +1 more source
Recent ASDEX Upgrade research in support of ITER and DEMO [PDF]
, 2015 Recent experiments on the ASDEX Upgrade tokamak aim at improving the physics base for ITER and DEMO to aid the machine design and prepare efficient operation. Type I edge localized mode (ELM) mitigation using resonant magnetic perturbations (RMPs) has
García Muñoz, Manuel +4 more
core +1 more source
Nuclear Fusion, 2021 Abstract To demonstrate the performance of tungsten (W) as the divertor target material and to solve the power handling problem during high power long-pulse discharge, the upgrade of EAST lower divertor is planned. In this work, the physical design of the W divertor is presented by using 2D edge plasma code SOLPS and Monte Carlo impurity
Chaofeng Sang +13 more
openaire +1 more source