Results 261 to 270 of about 1,947,311 (293)

Interaction between resonant magnetic perturbation and the rotating magnetic island

Physics of Plasmas, 1994
Nonlinear interaction between an external static resonant magnetic perturbation (RMP) and the corresponding rotating saturated magnetic island in tokamak plasma has been numerically simulated. The influence of flow shear driven by this nonlinear interaction is considered.
Wenjin Mao, Maoquan Wang
openaire   +1 more source

Influence of the Resonant Magnetic Perturbation on the Plasma Boundary in DIII‐D

Contributions to Plasma Physics, 2010
AbstractStochastic boundaries in fusion devices have been investigated in tokamaks, stellarators and reversed field pinch experiments for many years. However, since edge localized modes (ELMs) have been successfully eliminated in H‐mode plasmas at the DIII‐D tokamak [1,2] with small, edge resonant magnetic perturbations, they have become a widely ...
Jakubowski, M., Evans, T., Fenstermacher, M., Lasnier, C., Schmitz, O., Wolf, R., Baylor, L., Boedo, J., Burrell, K., Frerichs, H., deGrassie, J., Gohil, P., Mordijck, S., Moyer, R., Leonard, A., Reiter, D., Samm, U., Schaffer, M., Osborne, T., Unterberg, E., Watkins, J.   +20 more
openaire   +2 more sources

Plasma currents induced by resonant magnetic field perturbations in tokamaks

Physics of Plasmas, 2009
The plasma response on externally applied resonant magnetic field perturbations is studied by means of numerical simulations. It is shown that dependent on collisionality and perturbation strength, plasma currents build up which can compensate the ...
Dirk Reiser
exaly   +2 more sources

Magnetic trapping caused by resonant perturbations in tokamaks with reversed magnetic shear

Physics of Plasmas, 2004
Reversed magnetic shear configurations in tokamaks reduce substantially particle diffusivity and improve plasma confinement due to the formation of a transport barrier, as a result of magnetic field line reconnection and bifurcation. The latter are caused by the resonant perturbation of an ergodic limiter on a tokamak with reversed magnetic shear ...
Marisa Roberto, Elton C. da Silva, Iberê L. Caldas, Ricardo L. Viana   +3 more
openaire   +1 more source

Magnetic field topology modeling under resonant magnetic perturbations on EAST

Plasma Science and Technology, 2019
In order to understand the mechanism by which the resonant magnetic perturbation (RMP) mitigates or suppresses the edge-localized mode (ELM), the topological study of the edge magnetic field in ELM mitigation or suppression phase is a critical issue.
Jie HUANG, Yasuhiro SUZUKI, Yunfeng LIANG, Manni JIA, Youwen SUN, Nan CHU, Jichan XU, Muquan WU   +7 more
openaire   +1 more source

Influence of resonant magnetic perturbations on plasma edge turbulence

Physics of Plasmas, 1997
This work reports alterations on plasma-edge equilibrium profiles and on edge turbulence, and anomalous transport induced by resonant perturbing magnetic fields in the TBR (Brazilian Tokamak) tokamak [J. Fusion Energy 12, 295 (1993)]. Thus, these perturbations have reduced the equilibrium parameters and the spectral power of the fluctuations and ...
R. M. Castro, M. V. A. P. Heller, I. L. Caldas, Z. A. Brası́lio, R. P. da Silva, I. C. Nascimento   +5 more
openaire   +1 more source

Edge localized modes control by resonant magnetic perturbations

Journal of Nuclear Materials, 2007
A number of designs for external or in-vessel coils generating Resonant Magnetic Perturbations (RMPs) for type I ELMs control in ITER are analyzed. The RMPs generated by the I-coils in the successful DIII-D ELMs control experiments are taken as a reference. The three ITER characteristic scenarios (H-mode, hybrid and steady-state) are studied.
E. Nardon, M. Bécoulet, G. Huysmans, O. Czarny, P.R. Thomas, M. Lipa, R.A. Moyer, T.E. Evans, G. Federici, Y. Gribov, A. Polevoi, G. Saibene, A. Portone, A. Loarte   +13 more
openaire   +1 more source

ELM suppression by resonant magnetic perturbations at DIII-D

2009 23rd IEEE/NPSS Symposium on Fusion Engineering, 2009
Edge localized mode (ELM) suppression by resonant magnetic perturbations (RMPs) is being studied at DIII-D with ITER-similar plasma shapes and edge collisionalities. Suppression at low collisionality correlates with overlap of vacuum magnetic field islands in a quantified edge layer at moderate q.
M.J. Schaffer, T.E. Evans, R.A. Moyer, M.E. Fenstermacher   +3 more
openaire   +1 more source

Control of 3D equilibria with resonant magnetic perturbations in MST

Plasma Physics and Controlled Fusion, 2015
To aid in diagnosis of 3D equilibria in the Madison Symmetric Torus, it has become necessary to control the orientation of the equilibria. In reversed field pinch experiments a transition to a 3D equilibrium is common with sufficiently large plasma current (and Lundquist number).
S Munaretto, B E Chapman, D J Holly, M D Nornberg, R J Norval, D J Den Hartog, J A Goetz, K J McCollam   +7 more
openaire   +1 more source

Magnetic Field Structure Induced by Resonant Magnetic Perturbations in Tokamaks

2013
In this chapter we consider essential features of the structure of magnetic field in tokamaks in the presence of the externally applied resonant magnetic perturbations (RMPs).
openaire   +1 more source