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Francesca Maria Poli

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Related publications (64)

ADX: a high field, high power density, advanced divertor and RF tokamak

Francesca Maria Poli, Christian Gabriel Theiler, Yu Lin, John Wilson

The MIT Plasma Science and Fusion Center and collaborators are proposing a high-performance Advanced Divertor and RF tokamak eXperiment (ADX)-a tokamak specifically designed to address critical gaps in the world fusion research programme on the pathway to ...

IOP Publishing Ltd2015

Plasma turbulence, suprathermal ion dynamics and code validation on the basic plasma physics device TORPEX

Ambrogio Fasoli, Ivo Furno, Mario Ludovico Podesta, Francesca Maria Poli, Benoît Labit, Alexandre Dominique Bovet, Joaquim Loizu Cisquella, Gennady Plyushchev, Davoud Iraji, Paolo Ricci, Christian Gabriel Theiler, Kyle Gustafson, Fabio Avino

The TORPEX basic plasma physics device at the Center for Plasma Physics Research (CRPP) in Lausanne, Switzerland is described. In TORPEX, simple magnetized toroidal configurations, a paradigm for the tokamak scrape-off layer (SOL), as well as more complex ...

Cambridge University Press2015

Electrostatic instabilities, turbulence and fast ion interactions in the TORPEX device

Ambrogio Fasoli, Ivo Furno, Stefan Müller, Mario Ludovico Podesta, Francesca Maria Poli, Lucia Isabel Federspiel, Benoît Labit, Joaquim Loizu Cisquella, Alice Burckel, Gennady Plyushchev, Davoud Iraji, Paolo Ricci, Christian Gabriel Theiler, Kyle Gustafson

Electrostatic turbulence, related structures and their effect on particle, heat and toroidal momentum transport are investigated in TORPEX simple magnetized plasmas using high-resolution diagnostics, control parameters, linear fluid models and nonlinear nu ...

Institute of Physics2010

Langmuir probe-based observables for plasma-turbulence code validation and application to the TORPEX basic plasma physics experiment

Ambrogio Fasoli, Ivo Furno, Stefan Müller, Mario Ludovico Podesta, Francesca Maria Poli, Benoît Labit, Paolo Ricci, Christian Gabriel Theiler

The methodology for plasma-turbulence code validation is discussed, with focus on the quantities to use for the simulation-experiment comparison, i.e., the validation observables, and application to the TORPEX basic plasma physics experiment [A. Fasoli , P ...

American Institute of Physics (AIP)2009

Cross-field transport by instabilities and blobs in a magnetized toroidal plasma

Ambrogio Fasoli, Ivo Furno, Mario Ludovico Podesta, Francesca Maria Poli, Benoît Labit, Paolo Ricci, Christian Gabriel Theiler

The mechanisms for anomalous transport across the magnetic field are investigated in a toroidal magnetized plasma. The role of plasma instabilities and macroscopic density structures (blobs) is discussed. Examples from a scenario with open magnetic field l ...

2008

Experimental Observation of the Blob-Generation Mechanism from InterchangeWaves in a Plasma

Ambrogio Fasoli, Ivo Furno, Mario Ludovico Podesta, Francesca Maria Poli, Benoît Labit, Paolo Ricci, Christian Gabriel Theiler

The mechanism for blob generation in a toroidal magnetized plasma is investigated using time-resolved measurements of two-dimensional structures of electron density, temperature, and plasma potential. The blobs are observed to form from a radially elongate ...

2008

The role of the density gradient on intermittent cross-field transport events in a simple magnetized toroidal plasma

Ambrogio Fasoli, Ivo Furno, Mario Ludovico Podesta, Francesca Maria Poli, Benoît Labit, Paolo Ricci, Christian Gabriel Theiler

Intermittent cross-field particle transport events (ITEs) are studied in the basic toroidal device TORPEX [TORoidal Plasma EXperiment, A. Fasoli et al., Phys. Plasmas 13, 055902 (2006)], with focus on the role of the density gradient. ITEs are due to the i ...

American Institute of Physics (AIP)2008

Mechanism for blob generation in the TORPEX toroidal plasma

Stephan Brunner, Ambrogio Fasoli, Ivo Furno, Jonathan Graves, Mario Ludovico Podesta, Francesca Maria Poli, Benoît Labit, Paolo Ricci, Christian Gabriel Theiler

The mechanism for blob generation is detailed in the toroidal magnetized plasma of the TORPEX device [ Fasoli et al., Phys. Plasmas 13, 055902 (2006) ] using an experimental configuration, which features a plasma region dominated by a coherent wave and a r ...

2008

Transition from drift to interchange instabilities in an open magnetic field line configuration

Ambrogio Fasoli, Mario Ludovico Podesta, Francesca Maria Poli, Paolo Ricci

The transition from a regime dominated by drift instabilities to a regime dominated by pure interchange instabilities is investigated and characterized in the simple magnetized toroidal device TORPEX [TORoidal Plasma EXperiment, A. Fasoli et al., Phys. of ...

American Institute of Physics (AIP)2008

Electrostatic instabilities and turbulence in a toroidal magnetized plasma

Francesca Maria Poli

This Thesis aims at characterizing the linear properties of electrostatic drift instabilities arising in a toroidal plasma and the mechanisms leading to their development into turbulence. The experiments are performed on the TORoidal Plasma EXperiment (TOR ...

EPFL2007

Drift Wave Antenna Excitation in TORPEX Low-field Side

Ambrogio Fasoli, Ivo Furno, Mario Ludovico Podesta, Francesca Maria Poli, Benoît Labit, Paolo Ricci

2007

Characterization of the electron distribution function in an electron-cyclotron driven toroidal plasma

Ambrogio Fasoli, Ivo Furno, Mario Ludovico Podesta, Francesca Maria Poli, Benoît Labit

The local properties of the electron energy distribution function are investigated in the electron-cyclotron wave driven toroidal device TORPEX (Fasoli et al 2006 Phys. Plasmas 13 055902). The electron energy distribution function is measured by means of a ...

2007

Development of electrostatic turbulence from drift-interchange instabilities in a toroidal plasma

Ambrogio Fasoli, Mario Ludovico Podesta, Francesca Maria Poli

Electrostatic instabilities develop on TORPEX (TORoidal Plasma EXperiment) [A. Fasoli et al., Phys. of Plasmas, 13, 55902 (2006)] in the bad curvature region and propagate consistently with the drift wave dispersion relation. The wave number and frequency ...

2007

Fluctuations, turbulence and related transport in the TORPEX magnetised toroidal plasma

Ambrogio Fasoli, Ivo Furno, Mario Ludovico Podesta, Francesca Maria Poli, Benoît Labit, Gennady Plyushchev, Davoud Iraji, Paolo Ricci, Christian Gabriel Theiler

2007

Drift Wave Antenna Excitation in TORPEX Low-field Side

Ambrogio Fasoli, Ivo Furno, Mario Ludovico Podesta, Francesca Maria Poli, Benoît Labit, Paolo Ricci

2007

Antenna excitation of drift wave in a toroidal plasma

Ambrogio Fasoli, Ivo Furno, Stefan Müller, Mario Ludovico Podesta, Francesca Maria Poli, Benoît Labit, Paolo Ricci

In a magnetized toroidal plasma, an antenna tunable in vertical wave number is used to excite density perturbations. Coherent detection is performed by means of Langmuir probes to directly determine both the wave vector and the plasma response induced by t ...

American Institute of Physics2007

Universal statistical properties of drift-interchange turbulence in TORPEX plasmas

Ambrogio Fasoli, Ivo Furno, Mario Ludovico Podesta, Francesca Maria Poli, Benoît Labit, Gennady Plyushchev

A unique parabolic relation is observed to link skewness and kurtosis of around ten thousand density fluctuation signals, measured over the whole cross section of a toroidal magnetized plasma for a broad range of experimental conditions. All the probabilit ...

2007

Mechanism for plasma blob generation and related transport in the TORPEX toroidal plasma

Ambrogio Fasoli, Ivo Furno, Mario Ludovico Podesta, Francesca Maria Poli, Benoît Labit, Paolo Ricci, Christian Gabriel Theiler

2007

Statistical properties of electrostatic turbulence in toroidal magnetized plasmas (Invited paper)

Ambrogio Fasoli, Ivo Furno, Jan Horacek, Mario Ludovico Podesta, Francesca Maria Poli, Benoît Labit, Gennady Plyushchev, Davoud Iraji, Paolo Ricci, Christian Gabriel Theiler

2007

Statistical properties of electrostatic turbulence in toroidal magnetized plasmas

Ambrogio Fasoli, Ivo Furno, Jan Horacek, Mario Ludovico Podesta, Francesca Maria Poli, Benoît Labit, Gennady Plyushchev, Davoud Iraji, Paolo Ricci, Christian Gabriel Theiler

A unique parabolic relation is observed to link skewness and kurtosis of density fluctuation signals, measured over the whole cross-section of the simple toroidal device TORPEX for a broad range of experimental conditions. This relationship is also valid f ...

2007

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