Publications related to Understanding and taming plasma blobs in toroidal magnetized plasmas

Multi-Commodity Network Flow for Tracking Multiple People

Pascal Fua, François Fleuret, Jérôme Berclaz, Horesh Beny Ben Shitrit

In this paper, we show that tracking multiple people whose paths may intersect can be formulated as a multi-commodity network flow problem. Our proposed framework is designed to exploit image appearance cues to prevent identity switches. Our method is effe ...

Institute of Electrical and Electronics Engineers2014

Pre-sheath density drop induced by ion-neutral friction along plasma blobs and implications for blob velocities

Ambrogio Fasoli, Ivo Furno, Christian Gabriel Theiler, Joaquim Loizu Cisquella

The pre-sheath density drop along the magnetic field in field-aligned, radially propagating plasma blobs is investigated in the TORPEX toroidal experiment [Fasoli et al., Plasma Phys. Controlled Fusion 52, 124020 (2010)]. Using Langmuir probes precisely al ...

Amer Inst Physics2014

The role of the sheath in magnetized plasma turbulence and flows

Joaquim Loizu Cisquella

Controlled nuclear fusion could provide our society with a clean, safe, and virtually inexhaustible source of electric power production. The tokamak has proven to be capable of producing large amounts of fusion reactions by confining magnetically the ...

EPFL2013

Properties of convective cells generated in magnetized toroidal plasmas

Ambrogio Fasoli, Ivo Furno, Paolo Ricci, Christian Gabriel Theiler, Joaquim Loizu Cisquella

Convective cells for turbulence control, generated by means of biased electrodes, are investigated in the simple magnetized toroidal plasmas of TORPEX. A two-dimensional array of 24 electrodes is installed on a metal limiter to test different biasing schem ...

American Institute of Physics2012

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 fluctuation measurements in the new confined plasma configuration of the TORPEX device

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

The basic plasma physics device TORPEX features some of the main ingredients of the Scrape-Off Layer (SOL) of fusion devices, including gradients of density and magnetic field, as well as magnetic field curvature. A simple magnetized torus configuration (S ...

2012

Potential of a plasma bound between two biased walls

Paolo Ricci, Christian Gabriel Theiler, Joaquim Loizu Cisquella, Julien Stanislas Pierre Dominski

An analytical study is presented for an one-dimensional, steady-state plasma bound between two perfectly absorbing walls that are biased with respect to each other. Starting from a description of the plasma sheaths formed at both walls, an expression relat ...

American Institute of Physics2012

Convective cells and blob control in a simple magnetized torus

Ambrogio Fasoli, Ivo Furno, Christian Gabriel Theiler, Joaquim Loizu Cisquella

In view of controlling wall and divertor heat loads in magnetic fusion devices, we investigate the possibility of creating convective cells by means of biased electrodes for turbulence and blob control in the simple magnetized toroidal plasmas of TORPEX. A ...

2011

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

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

Understanding and taming plasma blobs in toroidal magnetized plasmas

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Multi-Commodity Network Flow for Tracking Multiple People

Pre-sheath density drop induced by ion-neutral friction along plasma blobs and implications for blob velocities

The role of the sheath in magnetized plasma turbulence and flows

Properties of convective cells generated in magnetized toroidal plasmas

Edge Localized Mode Control in TCV

First fluctuation measurements in the new confined plasma configuration of the TORPEX device

Potential of a plasma bound between two biased walls

Convective cells and blob control in a simple magnetized torus

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

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

Convective cells and blob control in a simple magnetized torus

Edge Localized Mode Control in TCV

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

First fluctuation measurements in the new confined plasma configuration of the TORPEX device

Multi-Commodity Network Flow for Tracking Multiple People

Pre-sheath density drop induced by ion-neutral friction along plasma blobs and implications for blob velocities

Properties of convective cells generated in magnetized toroidal plasmas

The role of the sheath in magnetized plasma turbulence and flows

Potential of a plasma bound between two biased walls

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