Publication

Demonstration of sawtooth period control with EC waves in KSTAR

Related publications (39)

Real-Time multi-EC-actuator MHD control in TCV

Olivier Sauter, Basil Duval, Timothy Goodman, Jonathan Graves, Duccio Testa, Holger Reimerdes, Federico Alberto Alfredo Felici, Doohyun Kim, Donghyun Kim

Real-time control of multiple plasma actuators is a requirement in advanced tokamaks; for example for burn control, plasma current profile control and MHD stabilization - EC wave absorption is ideally suited especially for the latter. For example, on ITER ...

Amer Inst Physics2014

Basic investigations of electrostatic turbulence and its interaction with plasma and suprathermal ions in a simple magnetized toroidal plasma

Ambrogio Fasoli, Ivo Furno, Paolo Ricci, Christian Gabriel Theiler, Joaquim Loizu Cisquella, Fabio Avino, Nicola Vianello, Sébastien Jolliet, Fabio Riva, Kyle Gustafson, Alexandre Dominique Bovet

Progress in basic understanding of turbulence and its influence on the transport both of the plasma bulk and of suprathermal components is achieved in the TORPEX simple magnetized torus. This configuration combines a microwave plasma production scheme with ...

Iop Publishing Ltd2013

Demonstration of sawtooth period locking with power modulation in TCV plasmas

Olivier Sauter, Timothy Goodman, Federico Alberto Alfredo Felici

Corroborating evidence is presented that the sawtooth period can follow the modulation frequency of an externally applied high power electron cyclotron wave source. Precise, fast and robust open loop control of the sawtooth period with a continuously chang ...

2012

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

First results on the plasma fluctuations of the TORPEX device in the new magnetic field configurations

Ambrogio Fasoli, Ivo Furno, Paolo Ricci, Joaquim Loizu Cisquella, Fabio Avino, Annamaria Mosetto, Alexandre Dominique Bovet

The TORoidal Plasma EXperiment (TORPEX) is a basic plasma physics device where a Simple Magnetized Torus configuration (SMT) can be obtained superimposing a small vertical magnetic field component on the main toroidal field, resulting in open magnetic heli ...

2012

A Far-Infrared Polarimeter Diagnostic for the Measurement of the Poloidal Magnetic Field in the TCV Tokamak

Information about the poloidal field inside the plasma and about the current density profile is essential for the understanding of the behavior of tokamak plasmas. The poloidal field outside the plasma edge is easily measured by a set of magnetic coils, wh ...

EPFL2011

Multiple electron cyclotron power deposition location tracking by break-in-slope analysis in TCV plasmas

Timothy Goodman, Jean-Marc Moret, Federico Alberto Alfredo Felici, Joan Decker, Antoine Pochelon, James Paley, Loïc Curchod

Modulation of the amplitude of externally injected electron cyclotron (EC) power is a frequent method used to determine the radial power deposition profile in fusion plasmas. There are many tools to analyze the plasma response to the power modulations unde ...

Institute of Physics2011

Multiple EC power deposition locations tracking by break-in-slope analysis in TCV plasmas

Timothy Goodman, Jean-Marc Moret, Federico Alberto Alfredo Felici, Joan Decker, Antoine Pochelon, James Paley, Loïc Curchod

2011

Individual Sawtooth pacing by synchronized ECCD in TCV

Olivier Sauter, Basil Duval, Timothy Goodman, Jonathan Graves, Duccio Testa, Holger Reimerdes, Federico Alberto Alfredo Felici

Previous real-time sawtooth control scenarios using EC actuators have attempted to shorten [1] or lengthen [2] the sawtooth period by optimally positioning the EC absorption near the q=1 surface. In new experiments we demonstrate for the first time that in ...

AIP conference Proceedings2011

Drift-free magnetic equilibrium reconstruction using the response to plasma position modulation

Jonathan Bryan Lister

Inductive magnetic sensors are widely used for plasma equilibrium reconstruction and control. However, their measurements involve electronic integration and can therefore experience drift leading to inaccurate plasma positioning. For this reason, we have s ...

Elsevier2009

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