Publications related to MHD Stability and Energy Principle for Two-Dimensional Equilibria without Assumption of Nested Magnetic Surfaces

Global Nonlinear Electromagnetic Simulations of Tokamak Turbulence

Laurent Villard, Stephan Brunner, Trach-Minh Tran, Alberto Bottino, Sébastien Jolliet, Ben McMillan, Thibaut Vernay

The particle-in-cell code ORB5 is a global gyrokinetic turbulence simulation code in tokamak geometry. It has been developed at CRPP, Lausanne, Switzerland, with major contributions from IPP, Garching, Germany, and IPP, Greifswald, Germany, under a long-st ...

Institute of Electrical and Electronics Engineers2010

Measurement of the magnetic field errors on TCV

Jean-Marc Moret, Francesco Piras, Jonathan Rossel

A set of 24 saddle loops is used on the Tokamak à Configuration Variable (TCV) to measure the radial magnetic flux at different toroidal and vertical positions. The new system is calibrated together with the standard magnetic diagnostics on TCV. Based on t ...

Fusion Engineering and Design2010

The Effect of Plasma Profile Variation on the Stability of the n = 1 Internal Kink Mode in Rotating Tokamak Plasmas

Jonathan Graves

The sensitivity of the stability of the ideal n = 1 internal kink mode to variations in the plasma profiles is analysed both analytically and numerically in rotating tokamak plasmas. These stability analyses have been carried out including the centrifugal ...

2010

The effect of plasma profile variation on the stability of the n=1 internal kink mode in rotating tokamak plasmas

Jonathan Graves

The sensitivity of the stability of the ideal n = 1 internal kink mode to variations in the plasma profiles is analysed both analytically and numerically in rotating tokamak plasmas. These stability analyses have been carried out including the centrifugal ...

2010

Analysis of the ITER High-Frequency Magnetic Diagnostic Set

Jean-Marc Moret, Duccio Testa, René Chavan, Matthieu Toussaint, Jonathan Bryan Lister, Thomas Maeder, Gilbert Tonetti, Albert Perez, Francisco Sanchez, Jérôme Guterl

The ITER high-frequency (HF) magnetic diagnostic system has to provide essential measurements of MHD instabilities with |deltaBMEAS/BPOL|~10^-4 (~1G) for frequencies up to 2MHz to resolve toroidal mode numbers (n) in the range |n|=10-50. A review of the me ...

2010

Assessment of the ITER high-frequency magnetic diagnostic set

Jean-Marc Moret, Duccio Testa, René Chavan, Matthieu Toussaint, Jonathan Bryan Lister, Thomas Maeder, Gilbert Tonetti, Albert Perez, Francisco Sanchez

The ITER high-frequency (HF) magnetic diagnostic system has to provide essential measurements of MHD instabilities with vertical bar delta B-MEAS/B-POL vertical bar similar to 10(-4) (similar to 1 G) for frequencies up to 2 MHz to resolve toroidal mode num ...

2010

A 3D multi-mode geometry-independent RMP optimization method and its application to TCV

Yves Martin, Jean-Marc Moret, Jonathan Rossel

Resonant magnetic perturbation (RMP) and error field correction (EFC) produced by toroidally and poloidally distributed coil systems can be optimized if each coil is powered with an independent power supply. A 3D multi-mode geometry-independent Lagrange me ...

IOP2010

Drift stabilization of ballooning modes in a high-$\langle \beta \rangle$ LHD configuration

Jonathan Graves, Wilfred Anthony Cooper, Lucie Brocher

Ideal MHD yields at best inconclusive predictions about the stability of the LHD heliotron for

\langle \beta \rangle \geq 3\%

. We investigate the impact of the drift stabilization of ballooning modes for the inward shifted LHD configuration (vacuum magne ...

2010

The Dependence of the Damping Rate of Medium-n Toroidal Alfvén Eigenmodes on the Edge Plasma Elongation in JET

Ambrogio Fasoli, Duccio Testa, Patrick Blanchard, Theodoros Panis, Nicolas Mellet

This paper reports the first quantitative analysis of the measurements of the damping rate (gamma/omega) for stable Alfvén Eigenmodes (AEs) with toroidal mode number (n) in the range |n|=3-15 as function of the edge plasma elongation (kappa95). We find tha ...

2010

Plasma rotation and momentum transport studies in the TCV tokamak based on charge exchange spectroscopy measurements

Alessandro Bortolon

Thermonuclear controlled fusion research is a highly active branch of plasma physics. The main goal is the production of energy from the fusion reaction of hydrogen isotope nuclei, the same reaction that powers stars. The most promising present approach ar ...

EPFL2009

MHD Stability and Energy Principle for Two-Dimensional Equilibria without Assumption of Nested Magnetic Surfaces

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Global Nonlinear Electromagnetic Simulations of Tokamak Turbulence

Measurement of the magnetic field errors on TCV

The Effect of Plasma Profile Variation on the Stability of the n = 1 Internal Kink Mode in Rotating Tokamak Plasmas

The effect of plasma profile variation on the stability of the n=1 internal kink mode in rotating tokamak plasmas

Analysis of the ITER High-Frequency Magnetic Diagnostic Set

Assessment of the ITER high-frequency magnetic diagnostic set

A 3D multi-mode geometry-independent RMP optimization method and its application to TCV

Drift stabilization of ballooning modes in a high-$\langle \beta \rangle$ LHD configuration

The Dependence of the Damping Rate of Medium-n Toroidal Alfvén Eigenmodes on the Edge Plasma Elongation in JET

Plasma rotation and momentum transport studies in the TCV tokamak based on charge exchange spectroscopy measurements

Analysis of the ITER High-Frequency Magnetic Diagnostic Set

A 3D multi-mode geometry-independent RMP optimization method and its application to TCV

Assessment of the ITER high-frequency magnetic diagnostic set

Plasma rotation and momentum transport studies in the TCV tokamak based on charge exchange spectroscopy measurements

The Effect of Plasma Profile Variation on the Stability of the n = 1 Internal Kink Mode in Rotating Tokamak Plasmas

The Dependence of the Damping Rate of Medium-n Toroidal Alfvén Eigenmodes on the Edge Plasma Elongation in JET

Drift stabilization of ballooning modes in a high-$\langle \beta \rangle$ LHD configuration

The effect of plasma profile variation on the stability of the n=1 internal kink mode in rotating tokamak plasmas

Measurement of the magnetic field errors on TCV

Global Nonlinear Electromagnetic Simulations of Tokamak Turbulence