The three-dimensional (3-D) VMEC code has been modified to model an energetic species with a variant of a Bi-Maxwellian distribution function that satisfies the constraint B . del F-h = 0, and the 3-D TERPSICHORE stability code has been extended to investi ...

2006

Relativistic Hamiltonian guiding center drift formalism in anisotropic pressure magnetic coordinates

Wilfred Anthony Cooper, Martin Jucker, Jonathan Graves

A Hamiltonian formulation of the relativistic guiding center drifts is extended to anisotropic pressure plasmas. The magnetic coordinates devised by Boozer are adapted to the anisotropic pressure model and retain canonical properties for two-dimensional an ...

2006

Anisotropic pressure bi-Maxwellian distribution function model for three-dimensional equilibria

Wilfred Anthony Cooper, Jonathan Graves

A formulation of the anisotropic pressure magnetohydrodynamic equilibrium problem for three-dimensional plasmas with imposed nested magnetic surfaces is developed based on a bi-Maxwellian model of the distribution function for the energetic particle specie ...

IOP Publishing Ltd2006

Interchange turbulence in the TCV scrape-off layer

Richard Pitts, Jan Horacek, Jonathan Graves

Probe measurements of electrostatic plasma fluctuations in the scrape-off layer (SOL) of the TCV tokamak are compared with the results from two-dimensional interchange turbulence simulations. Excellent agreement is found for both the radial variation of st ...

2006

Turbulence simulations of interchange motions and intermittent transport in TCV scrape-off layer plasmas

Richard Pitts, Jan Horacek, Jonathan Graves

2006

Turbulent transport in the TCV SOL

Richard Pitts, Jan Horacek, Jonathan Graves

2006

Turbulent transport in the TCV SOL

Richard Pitts, Jan Horacek, Jonathan Graves

2006

Modelling ICCD Experiments for Sawtooth Control in JET

Wilfred Anthony Cooper, Stefano Coda, Jonathan Graves

2006

On the origin of anomalous radial transport in the tokamak SOL

Richard Pitts, Jan Horacek, Jonathan Graves

2006

On the origin of anomalous radial transport in the tokamak SOL

Richard Pitts, Jan Horacek, Jonathan Graves

2006

On the origin of anomalous radial transport in the tokamak SOL

Richard Pitts, Jan Horacek, Jonathan Graves

2006

Exploring a small sawtooth regime in Joint European Torus plasmas with counterinjected neutral beams

Stefano Coda, Jonathan Graves

During a recent reversed toroidal field (B-T) campaign at the Joint European Torus (JET), experiments were performed to investigate the effect on sawteeth of neutral beam injection (NBI)-driven toroidal plasma rotation counter to the direction of the toroi ...

2006

Overview of edge electrostatic turbulence experiments on TCV

Richard Pitts, Jan Horacek, Jonathan Graves

Experiments on edge turbulence in the TCV tokamak have been performed for the first time at the beginning of 2003. This paper presents an overview of some of the results obtained, concentrating in particular on two areas: universality of density fluctuatio ...

2005

The stability of the ideal internal kink mode in realistic tokamak geometry

Olivier Sauter, Andrei Martynov, Jonathan Graves

The ideal stability of the internal kink mode is analysed for realistic tokamak geometry. Accurate numerical results demonstrate convergence with Bussac's toroidal solution (Bussac M N, Pellat R Edery D and Soule J L 1975 Phys. Rev. Lett. 35 1638) for inve ...

2005

Self-similar density turbulence in the TCV tokamak scrape-off layer

Richard Pitts, Jan Horacek, Jonathan Graves

Plasma fluctuations in the scrape-off layer (SOL) of the TCV tokamak exhibit statistical properties which are universal across a broad range of discharge conditions. Electron density fluctuations, from just inside the magnetic separatrix to the plasma-wall ...

2005

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