Publications related to KSTAR equilibrium operating space and projected stabilization at high normalized beta

Equilibrium and stability with m=0 magnetic islands

Axially symmetric m = 0 magnetic islands are studied in a cylindrical plasma with longitudinal magnetic field reversal. Applying 2D deformation on the equilibrium plasma boundary results in the breaking of magnetic surfaces topology into chain of islands. ...

European Physical Society2014

ELM control strategies and tools: status and potential for ITER

Yves Martin, Minh Quang Tran

Operating ITER in the reference inductive scenario at the design values of Ip = 15 MA and QDT = 10 requires the achievement of good H-mode confinement that relies on the presence of an edge transport barrier whose pedestal pressure height is key to plasma ...

2013

Magnetohydrodynamic helical structures in nominally axisymmetric low-shear tokamak plasmas

Olivier Sauter, Jonathan Graves, Wilfred Anthony Cooper, Holger Reimerdes, Antoine Pochelon, Federico David Halpern, Daniele Brunetti

The primary goal of hybrid scenarios in tokamaks is to enable high performance operation with large plasma currents whilst avoiding MHD instabilities. However, if a local minimum in the safety factor is allowed to approach unity, the energy required to ove ...

Iop Publishing Ltd2013

Non-linear magnetic perturbations during edge-localized modes in TCV dominated by low n mode components

Olivier Sauter, Holger Reimerdes, Hartmut Zohm

Edge-localized modes (ELMs) are instabilities in the edge of tokamak plasmas in the high confinement regime (H-mode). Despite beneficial aspects of ELMs, in a future device the size of the energy loss per ELM must be controlled, in order to avoid intolerab ...

Iop Publishing Ltd2013

Edge Localized Mode Control in TCV

Jonathan Rossel

The Tokamak concept, based on magnetic confinement of a hydrogen plasma, is one of today's most promising paths to energy production by nuclear fusion. The experimental scenarios leading to the largest fusion rate are based on a high confinement plasma reg ...

EPFL2012

Bifurcated Helical Core Equilibrium States in Tokamaks

Olivier Sauter, Basil Duval, Stefano Coda, Jonathan Graves, Wilfred Anthony Cooper, Holger Reimerdes, Benoît Labit, Antoine Pochelon, David Pfefferlé, Federico David Halpern, Daniele Brunetti, Jonathan Rossel, Mattia Albergante

Tokamaks with weak to moderate reversed central shear in which the minimum rotational transform

q_{min}

is in the neighbourhood of unity can trigger bifurcated MagnetoHydrodynamic (MHD) equilibrium states, one of which is similar to a saturated ideal ...

2012

Three-Dimensional Corrugation of the Plasma Edge when Magnetic Perturbations are Applied for Edge-Localized Mode Control in MAST

Wilfred Anthony Cooper

The distortion of the plasma boundary when three-dimensional resonant magnetic perturbations (RMPs) are applied has been measured in MAST H-mode plasmas. When the n = 3 RMPs are applied to control edge-localized modes (ELMs), the plasma experiences a stron ...

Institute of Physics2012

Resonant features of energy and particle transport during application of resonant magnetic perturbation fields at TEXTOR and DIII-D

Holger Reimerdes

In this paper, results of a direct comparison of TEXTOR and DIII-D experiments with resonant magnetic perturbation (RMP) fields are presented. This comparison of resistive L-mode plasmas at TEXTOR with highly conductive H-mode plasmas at DIII-D is useful t ...

2012

Pedestal Characteristics and MHD Stability of H-Mode Plasmas in TCV

Andreas Pitzschke

The tokamak à configuration variable (TCV) is unique in its ability to create a variety of plasma shapes and to heat the electron population in high density regimes using microwave power at the third harmonic of the electron cyclotron frequency. In the fra ...

EPFL2011

MHD equilibrium and stability of tokamaks and RFP systems with 3D helical cores

Olivier Sauter, Jonathan Graves, Wilfred Anthony Cooper

Bifurcated magnetohydrodynamic (MHD) equilibrium states are computed for ITER hybrid scenario and RFX-mod SHAx configurations with very flat or reversed core magnetic shear conditions. In the ITER studies, the minimum inverse rotational transform qmin is n ...

IOP Publishing2011

KSTAR equilibrium operating space and projected stabilization at high normalized beta

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Equilibrium and stability with m=0 magnetic islands

ELM control strategies and tools: status and potential for ITER

Magnetohydrodynamic helical structures in nominally axisymmetric low-shear tokamak plasmas

Non-linear magnetic perturbations during edge-localized modes in TCV dominated by low n mode components

Edge Localized Mode Control in TCV

Bifurcated Helical Core Equilibrium States in Tokamaks

Three-Dimensional Corrugation of the Plasma Edge when Magnetic Perturbations are Applied for Edge-Localized Mode Control in MAST

Resonant features of energy and particle transport during application of resonant magnetic perturbation fields at TEXTOR and DIII-D

Pedestal Characteristics and MHD Stability of H-Mode Plasmas in TCV

MHD equilibrium and stability of tokamaks and RFP systems with 3D helical cores

Non-linear magnetic perturbations during edge-localized modes in TCV dominated by low n mode components

Bifurcated Helical Core Equilibrium States in Tokamaks

ELM control strategies and tools: status and potential for ITER

Magnetohydrodynamic helical structures in nominally axisymmetric low-shear tokamak plasmas

Equilibrium and stability with m=0 magnetic islands

Pedestal Characteristics and MHD Stability of H-Mode Plasmas in TCV

Edge Localized Mode Control in TCV

Three-Dimensional Corrugation of the Plasma Edge when Magnetic Perturbations are Applied for Edge-Localized Mode Control in MAST

Resonant features of energy and particle transport during application of resonant magnetic perturbation fields at TEXTOR and DIII-D

MHD equilibrium and stability of tokamaks and RFP systems with 3D helical cores