Publications related to Properties of convective cells generated in magnetized toroidal plasmas

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

Basic Investigation of Turbulent Structures and Blobs of Relevance for Magnetic Fusion Plasmas

Christian Gabriel Theiler

Similarly to neutral fluids, plasmas often exhibit turbulent behavior. Turbulence in plasmas is usually more complex than in neutral fluids due to long range interactions via electric and magnetic fields, and kinetic effects. It gives rise to many interest ...

EPFL2011

Improved dynamic response of magnetic feedback in RFX-mod and DIII-D

Holger Reimerdes

The wall of any magnetic fusion device is characterized by the presence of several 3D structures, such as portholes for diagnostics and for heating and current drive systems, coil feeds and other features. Time-varying magnetic fields induce eddy currents ...

2011

Turbulence and bias-induced flows in simple magnetized toroidal plasmas

Paolo Ricci, Bo Li

Turbulence and bias-induced flows in simple magnetized toroidal plasmas are explored with global three-dimensional fluid simulations, focusing on the parameters of the Helimak experiment. The simulations show that plasma turbulence and transport in the reg ...

2011

Observations of core toroidal rotation reversals in Alcator C-Mod ohmic L-mode plasmas

Basil Duval, Alessandro Bortolon

Direction reversals of intrinsic toroidal rotation have been observed in Alcator C-Mod ohmic L-mode plasmas following modest electron density or toroidal magnetic field ramps. The reversal process occurs in the plasma interior, inside of the q = 3/2 surfac ...

2011

Direct two-dimensional measurements of the eld-aligned current associated with plasma blobs

Ambrogio Fasoli, Ivo Furno, Christian Gabriel Theiler, Nicola Vianello

In simple magnetized toroidal plasmas, field-aligned blobs originate from ideal interchange waves and propagate radially outward under the effect of

\grad B

and curvature induced

E \times B

drifts. We report on the first experimental two-dimensional me ...

2011

Magnetic energy flows during the current quench and termination of disruptions with runaway current plateau formation in JET and implications for ITER

James Paley

The magnetic energy balance and magnetic energy flows for plasma disruptions in which runaway plateau plasmas are formed and terminated at JET has been analysed and compared with that of runaway-free disruptions. The analysis shows that the energy loss pro ...

2011

Blob-induced toroidal momentum transport in simple magnetized plasmas

Ambrogio Fasoli, Ivo Furno, Paolo Ricci, Benoît Labit, Christian Gabriel Theiler

The link between toroidal flows and density blobs is experimentally demonstrated in TORPEX simple magnetized plasmas: momentum is transferred from an ideal-interchange mode to density blobs. The phase shift between the toroidal flow and the density perturb ...

American Institute of Physics2011

Self-Pulsation at Zero Absorber Bias in GaN-Based Multisection Laser Diodes

Nicolas Grandjean, Jean-François Carlin, Julien Dorsaz, Luca Alex Milo Sulmoni

We study the influence of pump current and absorber bias voltage on the pulse width and frequency of sustained pulsation in GaN-based multisection laser diodes. The observed frequencies and pulse widths range from 1.5 to 4.5GHz and 90 to 18 ps, respectivel ...

2011

Self-Consistent ICRH Distribution Functions and Equilibria in Magnetically Confined Plasmas

Martin Jucker

The deployment of high power radio frequency waves in the ion cyclotron range (ICRF) constitutes an important operational facility in many plasma devices, including ITER. Any charged particle describes a helical motion around a given magnetic field line, t ...

EPFL2010

Properties of convective cells generated in magnetized toroidal plasmas

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

Basic Investigation of Turbulent Structures and Blobs of Relevance for Magnetic Fusion Plasmas

Improved dynamic response of magnetic feedback in RFX-mod and DIII-D

Turbulence and bias-induced flows in simple magnetized toroidal plasmas

Observations of core toroidal rotation reversals in Alcator C-Mod ohmic L-mode plasmas

Direct two-dimensional measurements of the eld-aligned current associated with plasma blobs

Magnetic energy flows during the current quench and termination of disruptions with runaway current plateau formation in JET and implications for ITER

Blob-induced toroidal momentum transport in simple magnetized plasmas

Self-Pulsation at Zero Absorber Bias in GaN-Based Multisection Laser Diodes

Self-Consistent ICRH Distribution Functions and Equilibria in Magnetically Confined Plasmas

Basic Investigation of Turbulent Structures and Blobs of Relevance for Magnetic Fusion Plasmas

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

Observations of core toroidal rotation reversals in Alcator C-Mod ohmic L-mode plasmas

Turbulence and bias-induced flows in simple magnetized toroidal plasmas

Direct two-dimensional measurements of the eld-aligned current associated with plasma blobs

Magnetic energy flows during the current quench and termination of disruptions with runaway current plateau formation in JET and implications for ITER

Blob-induced toroidal momentum transport in simple magnetized plasmas

Self-Consistent ICRH Distribution Functions and Equilibria in Magnetically Confined Plasmas

Improved dynamic response of magnetic feedback in RFX-mod and DIII-D

Self-Pulsation at Zero Absorber Bias in GaN-Based Multisection Laser Diodes