Zobrazeno 1 - 10
of 189
pro vyhledávání: '"R.R. Weynants"'
Autor:
J. Harhausen, A. Herrmann, Y. D. Bae, S. J. Wang, G. Van Wassenhove, U. Samm, R.R. Weynants, V. Rohde, V. Philipps, D. Douai, D. Van Eester, M. Vervier, H.-U. Fahrbach, H. Reimer, A.I. Lyssoivan, O. Marchuk, M. Freisinger, V. Mertens, J. Hu, O. Gruber, R. Koch, D. A. Hartmann, Arkadi Kreter, Textor Team, C. Schulz, E. Lerche, V. Bobkov, J. G. Kwak, R. Neu, A. Scarabosio, G. Sergienko, H.G. Esser, J.-M. Noterdaeme
Publikováno v:
Journal of Nuclear Materials. :907-910
In the present paper, inter-machine studies of Ion Cyclotron Wall Conditioning (ICWC) have been performed in limiter (TEXTOR) and divertor (ASDEX Upgrade, AUG) tokamaks in the presence of toroidal (0.2–2.35 T) and vertical (0–0.04 T) magnetic fie
Autor:
R. J. E. Jaspers, Y. Xu, P. Beyer, Michael Lehnen, B. Unterberg, Dirk Reiser, K.H. Finken, S. Jachmich, R.R. Weynants, M. W. Jakubowski, M. Vergote, M. Mitri, M. Van Schoor, B. Schweer
Publikováno v:
Nuclear Fusion. 47:1696-1709
The influence of the magnetic ergodization on edge turbulence and turbulence-induced transport has been investigated by Langmuir probes in TEXTOR under three different static DED configurations. Common features are observed. With DED, the edge equili
Publikováno v:
Journal of Nuclear Materials. :703-707
We discuss the modeling of turbulence by means of a simulation code and compare these simulations to experimental results recently obtained in TEXTOR using a new Reynolds stress probe. The probe, reciprocating on a fast manipulator, allows to track p
Publikováno v:
Journal of Nuclear Materials. :718-722
The radial profiles of electrostatic Reynolds stress and fluctuation-driven particle flux have been measured in the plasma boundary using a multi-array of fast reciprocating Langmuir probes during the static 6/2 and 3/1 mode dynamic ergodic divertor
Publikováno v:
Plasma Physics and Controlled Fusion. 48:S75-S86
We describe the results of a measurement campaign on the CASTOR tokamak where the drive of flows and zonal flows by Reynolds stress was investigated by means of a dual probe head system allowing us to measure the properties of the electrostatic turbu
Autor:
A.M. Messiaen, R. Koch, S. Huygen, A. Lyssoivan, M. Vervier, Pierre Dumortier, Frédéric Durodié, P.E. Vandenplas, R.R. Weynants, G. Van Wassenhove
Publikováno v:
Fusion Science and Technology. 47:97-107
The original work done on TEXTOR on ion cyclotron resonance heating of the plasma is reviewed. After a brief introduction outlining the principles, the radio-frequency (rf) system is described, with its substantial evolution during time. Then, the di
Publikováno v:
Fusion Science and Technology. 47:202-208
The application in TEXTOR of an externally controlled radial electric field Er, imposed by means of an electrode, has allowed to ascertain many aspects of the physics of the creation of Er and of i...
Autor:
R.R. Weynants, Ricardo Magnus Osorio Galvao, R. Koch, S. Yu. Medvedev, A. A. Ivanov, Artour G Elfimov, K.H. Finken, D.W. Faulconer
Publikováno v:
Nuclear fusion 44, s83-s92 (2004). doi:10.1088/0029-5515/44/6/S09
The profile and dissipation of the field excited by dynamic ergodic divertor (DED) coils in tokamak plasmas are calculated, and an estimate is made of the poloidal/toroidal velocities driven by this field. The coils are idealized as an inboard sheet
Autor:
Denis Kalupin, B. Unterberg, M. Z. Tokar, Pierre Dumortier, A.M. Messiaen, Geert Verdoolaege, R.R. Weynants, G. Van Wassenhove
Publikováno v:
Plasma physics and controlled fusion 45, 1501-1510 (2003). doi:10.1088/0741-3335/45/8/308
The radiative improved (RI) mode at TEXTOR is a high confinement regime, which is obtained by the seeding of neon into deuterium plasmas. Recent experiments were aimed to study the influence of external gas fuelling on the confinement properties of t
Publikováno v:
Journal of Nuclear Materials. :1326-1330
The plasma edge plays an important role in the physics of improved confinement. In this region, shear in the E → × B → flow can be responsible for the suppression of turbulence. An electric field and sheared flows are set up by plasma edge polar