[PDF] Top 20 Contribution of kinetic electrons in Tokamak plasmas
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Contribution of kinetic electrons in Tokamak plasmas
... models of electrons used in this study: In chapter 1 , we rst introduce the tokamak magnetic geometry that we use in this ...overview of the particle trajectories is done ... Voir le document complet
197
Streamer-induced transport in the presence of trapped ion modes in tokamak plasmas
... shear. In a pre- vious work, Fong and Hahm 20 derived the nonlinear electro- static bounce-averaged kinetic equations via phase space La- grangian Lie-perturbation ...form of the neoclassical ... Voir le document complet
21
Linear collisionless dynamics of the GAM with kinetic electrons: comparison simulations/theory
... simulations, kinetic electrons, Geodesic Accoustic Mode (GAM) ...role in the saturation of turbulence in ...level. In 1998, Rosenbluth and Hinton [22] showed that Zonal Flows are ... Voir le document complet
17
An analytic model for the collisional transport and poloidal asymmetry distribution of impurities in tokamak plasmas
... concentration. In our model, the neoclassical flux must be computed as a function of the impurity gradient to identify the stationnary point and determine the neoclassical diffusion and pinch velocity, as ... Voir le document complet
33
Natural poloidal asymmetry and neoclassical transport of impurities in tokamak plasmas
... space of a fusion reactor results from the balance between the heat source produced by alpha particles and additional heating systems on the one side, and the heat losses produced by the radiation emitted by ... Voir le document complet
34
Dynamics of runaway electrons in tokamak plasmas
... Runaway electrons can be generated in tokamak plasmas if the accelerating force from the toroidal electric field exceeds the collisional drag force owing to Coulomb collisions with the ... Voir le document complet
175
Impurity transport and its modification by MHD in tokamak plasmas, with application to Tungsten in the WEST tokamak
... transport of impurities is investigated analytically and numerically in this work, and the effect of a magnetic island for a WEST plasma is ...asymmetry of the impurity density can be ... Voir le document complet
5
Integrated equilibrium reconstruction and MHD stability analysis of tokamak plasmas in the EU-IM platform
... publication in the open ...publication of the original when applicable, or without the consent of the Publications Officer, EUROfu- sion Programme Management Unit, Culham Science Centre, Abingdon, ... Voir le document complet
7
The impact of two-fluid MHD instabilities on the transport of impurity in tokamak plasmas
... Summary In this chapter, compound sawteeth have been studied with the XTOR-2F ...simulations of sawtoothing cycles show that q-proles are at in the core region after a sawtooth crash, with q & ... Voir le document complet
141
Dust remobilization from rough planar surfaces in tokamak steady-state plasmas
... AFM in PeakForce Quantitative Nano-Mechanical mode (PF- QNM) in environmental ...composed of a matrix of 128 × 128 points at a scanning rate of ...amplitude of 300 ...regions ... Voir le document complet
6
Edge turbulence effect on ultra-fast swept reflectometry core measurements in tokamak plasmas
... interpretation of USFR is quiet ...used in past works, Gerbaud (2006 ...are of prime interest. Such methods gives good results in the case of small turbulence ...However in ... Voir le document complet
11
VMS Finite Element for MHD and Reduced-MHD in Tokamak Plasmas
... simulations in tokamaks [22, 37, 17, 32, 30]. We will discuss the effect of the potential vector representation of the magnetic field on the weak ...interaction of Fourier modes. In the ... Voir le document complet
50
Edge Localized Mode control by Resonant Magnetic Perturbations in tokamak plasmas
... Conclusion Tokamak plasmas, in high connement regime, undergo large periodical relaxations of the edge pressure prole, called Edge Localized Modes or ...plates. In ITER, if they are ... Voir le document complet
193
KINETIC DESCRIPTION OF THE ENERGETIC PARTICLES AND WAVES IN FUSION PLASMAS INTERACTION BETWEEN
... EGAMs in G YSELA ...difficulty of the subject, it constitutes the natural ending of the whole thesis, which acquires complete ...results of chapter 4 were obtained for the first time in ... Voir le document complet
170
Investigation of tokamak turbulent avalanches using wave-kinetic formulation in toroidal geometry
... 2008). In addition, simulations with both ITG and energetic–particle-driven GAMs (EGAMs) feature increased turbulent avalanches, synchronised at the EGAM frequency (Zarzoso et ...interaction of a GAM on an ... Voir le document complet
24
Co- and Counter-current Rotation Induced by Lower Hybrid Current Drive in Tokamak Plasmas
... modification of intrinsic rotation via changes in the ...L-mode plasmas have been ob- served to reverse rotation direction spontaneously as a function of current, density, and magnetic field ... Voir le document complet
5
A Coarse-grained Kinetic Equation for Neutral Particles in Turbulent Fusion Plasmas
... thousands of realizations, for β half integer and τ = ∞. Calculations in a 2D slab geometry for the average molecule density profile ...presented in Fig. 2 (reps. Fig. 3 ). The radial distances are ... Voir le document complet
10
Champ électrique radial dans les plasmas de tokamak non axi-symétrique: étude par réflectométrie Doppler
... de plasmas chauffés majoritairement par les réactions de fusion entre les ions Deuterium et ...le tokamak Tore Supra, un diagnostic de réflectométrie Doppler permet une mesure quasi-directe de la vitesse de ... Voir le document complet
239
IMPURITY TRANSPORT AND ITS MODIFICATION BY MHD IN TOKAMAK PLASMAS, WITH APPLICATION TO TUNGSTEN IN WEST
... • This fully determines the self-consistent asymmetry when the ion and electric potential asymmetries can be neglected (the formula can be extended in these cases). • Characteristics of the asymmetry circle ... Voir le document complet
2
Modelling the turbulent transport of angular momentum in tokamak plasmas - A quasi-linear gyrokinetic approach
... M. Faury, N. Fedorczak, C. Fenzi-Bonizec, M. Firdaouss, Y. Frauel, X. Garbet, J. Garcia, J.L. Gardarein, L. Gargiulo, P. Garibaldi, E. Gauthier, O. Gaye, A. Géraud, M. Geynet, P. Ghendrih, I. Giacalone, S. Gibert, C. ... Voir le document complet
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