Publications related to Physics of the compact advanced stellarator NCSX

Microturbulence driven transport of energetic ions in the ITER steady-state scenario

Modelling of microturbulence-driven transport of energetic ions in an ITER steady-state scenario is presented. Results indicate that a significant fraction of the velocity space distribution of alpha particles and deuterium ions can be transported above ne ...

International Atomic Energy Agency2010

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

Toroidal Universal Drift Instability: A Global Gyrokinetic Study

Laurent Villard, Stephan Brunner

An electron density gradient driven instability identified as the toroidal branch of the universal drift instability is studied using a global gyrokinetic model treating both electrons and ions fully nonadiabatically and valid at all orders in the ratio of ...

American Institute of Physics2010

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

Overview of physics research on the TCV tokamak

Ambrogio Fasoli

The Tokamak a Configuration Variable (TCV) tokamak is equipped with high-power (4.5 MW), real-time-controllable EC systems and flexible shaping, and plays an important role in fusion research by broadening the parameter range of reactor relevant regimes, b ...

2009

Modeling and control of the current density profile in tokamaks and its relation to electron transport

Costanza Zucca

The current density in tokamak plasmas strongly affects transport phenomena, therefore its understanding and control represent a crucial challenge for controlled thermonuclear fusion. Within the vast framework of tokamak studies, three topics have been tac ...

EPFL2009

Full tokamak discharge simulation and kinetic plasma profile control for ITER

Sun Hee Kim

Understanding non-linearly coupled physics between plasma transport and free-boundary equilibrium evolution is essential to operating future tokamak devices, such as ITER and DEMO, in the advanced tokamak operation regimes. To study the non-linearly couple ...

EPFL2009

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

Investigation of sheath effects on interchange modes in TORPEX plasmas

Jérôme Guterl

The TORoidal Plasma EXperiment (TORPEX) at CRPP generates and confines plasmas in a magnetic configuration with open helical magnetic field lines, in which similarly to the SOL of magnetic fusion devices, grad B and magnetic field curvature are at play. In ...

2009

Particle pinch and collisionality in gyrokinetic simulations of tokamak plasma turbulence

Henri Weisen, Mikhail Maslov, Emiliano Fable

The generic problem of how, in a turbulent plasma, the experimentally relevant conditions of a particle flux very close to the null are achieved, despite the presence of strong heat fluxes, is addressed. Nonlinear gyrokinetic simulations of plasma turbulen ...

American Institute of Physics2009

Physics of the compact advanced stellarator NCSX

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Microturbulence driven transport of energetic ions in the ITER steady-state scenario

Analysis of the ITER High-Frequency Magnetic Diagnostic Set

Toroidal Universal Drift Instability: A Global Gyrokinetic Study

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

Overview of physics research on the TCV tokamak

Modeling and control of the current density profile in tokamaks and its relation to electron transport

Full tokamak discharge simulation and kinetic plasma profile control for ITER

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

Investigation of sheath effects on interchange modes in TORPEX plasmas

Particle pinch and collisionality in gyrokinetic simulations of tokamak plasma turbulence

Microturbulence driven transport of energetic ions in the ITER steady-state scenario

Modeling and control of the current density profile in tokamaks and its relation to electron transport

Toroidal Universal Drift Instability: A Global Gyrokinetic Study

Overview of physics research on the TCV tokamak

Full tokamak discharge simulation and kinetic plasma profile control for ITER

Particle pinch and collisionality in gyrokinetic simulations of tokamak plasma turbulence

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

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

Investigation of sheath effects on interchange modes in TORPEX plasmas

Analysis of the ITER High-Frequency Magnetic Diagnostic Set