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Ivo Furno

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Publications associées (181)

Blob properties in full-turbulence simulations of the TCV scrape-off layer

Ivo Furno, Benoît Labit, Paolo Ricci, Fabio Riva, Federico David Halpern, Fabio Avino, Federico Nespoli

To investigate blob properties in the tokamak scrape-off layer (SOL), we perform dedicated numerical nonlinear simulations of plasma turbulence in the SOL of a TCV discharge using the Global Braginskii Solver code. A blob detection technique is used for th ...

2017

Ion heating and flows in a high power helicon source

Alan Howling, Ivo Furno, Gennady Plyushchev, Rémy Jacquier, Riccardo Agnello

We report experimental measurements of ion temperatures and flows in a high power, linear, magnetized, helicon plasma device, the Resonant Antenna Ion Device (RAID). Parallel and perpendicular ion temperatures on the order of 0.6 eV are observed for an rf ...

Amer Inst Physics2017

Non-linear simulations of the TCV Scrape-Off Layer

Ivo Furno, Benoît Labit, Joaquim Loizu Cisquella, Paolo Ricci, Fabio Riva, Federico David Halpern, Federico Nespoli

To investigate the mechanisms leading to the heat deposition onto the first wall in the Scrape-Off Layer (SOL), we perform dedicated numerical non-linear simulations of the SOL plasma dynamics of a TCV discharge using the GBS code. The simulated parallel h ...

Elsevier Science Bv2017

Overview of the TCV tokamak program: scientific progress and facility upgrades

Patrick Blanchard, Stefano Alberti, Basil Duval, Ambrogio Fasoli, Timothy Goodman, Xavier Llobet, Yves Martin, Jean-Marc Moret, Olivier Sauter, Minh Quang Tran, Henri Weisen, Ivo Furno, Holger Reimerdes, Jean-Philippe Hogge, Stefano Coda, Christian Schlatter, Marco Wischmeier, Jan Horacek, Alexander Karpushov, Laurie Porte, Yanis Andrebe, Yann Camenen, Jonathan Graves, Duccio Testa, Benoît Labit, Rémy Jacquier, Paolo Ricci, Christian Gabriel Theiler, Federico Alberto Alfredo Felici, Fabio Riva, Wouter Vijvers, Josef Kamleitner, Hoang Bao Le, Zhouji Huang, Himank Anand, Falk Hans Braunmüller, Joyeeta Sinha, Claudio Marini, Antoine Pierre Emmanuel Alexis Merle, Federico Nespoli, Oulfa Chellaï, , , , , , , , , , , , , , ,

Complex image method for RF antenna-plasma inductive coupling calculation in planar geometry: II. Measurements on a resonant network (vol 24, 065015, 2015)

Philippe Frédérique Bruno Guittienne, Alan Howling, Ivo Furno, Rémy Jacquier

Iop Publishing Ltd2017

Plasma blob studies using a fluorescent probe

Paul Bowen, Ambrogio Fasoli, Ivo Furno, Carlos Morais, Paolo Ricci, Oulfa Chellaï, Weitian Zhao, Marcelo Baquero Ruiz, Fabian Manke

2017

Understanding and suppressing the near Scrape-Oﬀ Layer heat flux feature in inboard-limited plasmas in TCV

Ivo Furno, Holger Reimerdes, Jan Horacek, Benoît Labit, Paolo Ricci, Christian Gabriel Theiler, Federico Nespoli, Cedric Kar-Wai Tsui, Roberto Maurizio

In inboard-limited plasmas, the Scrape-Oﬀ Layer (SOL) shows two regions: the near SOL, extending a few mm from the Last Closed Flux Surface (LCFS), characterized by a steep gradient of the parallel heat ﬂux radial proﬁle, and a far SOL, typically some cm w ...

International Atomic Energy Agency2017

Helicon wave-generated plasmas for negative ion beams for fusion

Philippe Frédérique Bruno Guittienne, Alan Howling, Ivo Furno, Gennady Plyushchev, Rémy Jacquier, Claudio Marini, Riccardo Agnello

In the next generation of fusion reactors, such as DEMO, neutral beam injectors (NBIs) of high energy (0.8-1 MeV) deuterium atom swith high wall-plug efficiency (>50%) will be required to reach burning plasma conditions and to provide a significant amount ...

2017

Electromagnetic, complex image model of a large area RF resonant antenna as inductive plasma source

Philippe Frédérique Bruno Guittienne, Alan Howling, Ivo Furno, Rémy Jacquier

A large area antenna generates a plasma by both inductive and capacitive coupling; it is an electromagnetically coupled plasma source. In this work, experiments on a large area planar RF antenna source are interpreted in terms of a multi-conductor transmis ...

2017

Experimental study of high power mm-waves scattering by plasma turbulence in TCV plasmas

Stefano Alberti, Timothy Goodman, Ivo Furno, Gennady Plyushchev, Oulfa Chellaï, Marcelo Baquero Ruiz, Fabian Manke

Understanding the propagation of high power mm-wave in plasmas is of tremendous importance in the route to fusion considering their extensive use in magnetically confined fusion devices. Mm-beams, launched from the outside of the vessel must propagate thro ...

2017

Negative ion source development for a photoneutralization based neutral beam system for future fusion reactors

Philippe Frédérique Bruno Guittienne, Basil Duval, Alan Howling, Ivo Furno, Rémy Jacquier, Claudio Marini, Riccardo Agnello

In parallel to the developments dedicated to the ITER neutral beam (NB) system, CEA-IRFM with laboratories in France and Switzerland are studying the feasibility of a new generation of NB system able to provide heating and current drive for the future DEMO ...

Iop Publishing Ltd2016

X-Point Effect on Plasma Blob Dynamics

Ambrogio Fasoli, Ivo Furno, Paolo Ricci, Christian Gabriel Theiler, Fabio Avino

Plasma blob dynamics on the high-field side in the proximity of a magnetic field null (X point) is investigated in TORPEX. A significant acceleration of the blobs towards the X point is observed. Close to the X point the blobs break apart. The E x B drifts ...

American Physical Society2016

The physics of the heat flux narrow decay length in the TCV scrape-off layer: experiments and simulations

Richard Pitts, Ivo Furno, Jan Horacek, Benoît Labit, Paolo Ricci, Christian Gabriel Theiler, Federico David Halpern, Federico Nespoli, Cedric Kar-Wai Tsui

2016

Dual Langmuir-probe array for 3D plasma studies in TORPEX

Ambrogio Fasoli, Ivo Furno, Rémy Jacquier, Fabio Avino, Oulfa Chellaï, Marcelo Baquero Ruiz, Fabian Manke

We have designed and installed a new Langmuir-probe (LP) array diagnostic to determine basic three-dimensional (3D) features of plasmas in TORPEX. The diagnostic consists of two identical LP arrays, placed on opposite sides of the apparatus, which provide ...

2016

Non-diffusive transport of suprathermal ions by intermittent turbulent structures

Ambrogio Fasoli, Ivo Furno, Alexandre Dominique Bovet, Paolo Ricci, Kyle Gustafson

We report on recent experimental, numerical and theoretical investigations of suprathermal ion transport and turbulent plasma dynamics in TORPEX. TORPEX is a toroidal device in which field-aligned blobs are intermittently generated and propagate across a c ...

2016

Method and device for determining plasma characteristics

Philippe Frédérique Bruno Guittienne, Alan Howling, Ivo Furno

The invention relates to a method and a device for determining plasma characteristics, the method comprising the steps of: - arranging a measurement probe (2) having a self-inductance in proximity to a plasma (3) to establish inductive coupling between the ...

2016

Blob dynamics in the TORPEX experiment: a multi-code validation

Ivo Furno, Paolo Ricci, Christian Gabriel Theiler, Fabio Riva, Eric Serre

Three-dimensional and two-dimensional seeded blob simulations are performed with five different fluid models, all based on the drift-reduced Braginskii equations, and the numerical results are compared among themselves and validated against experimental me ...

Institute of Physics2016

Industrial plasmas in academia

Philippe Frédérique Bruno Guittienne, Christoph Hollenstein, Alan Howling, Ivo Furno

The present review, written at the occasion of the 2014 EPS Innovation award, will give a short overview of the research and development of industrial plasmas within the last 30 years and will also provide a first glimpse into future developments of this i ...

Iop Publishing Ltd2015

Complex image method for RF antenna-plasma inductive coupling calculation in planar geometry. Part I: basic concepts

Philippe Frédérique Bruno Guittienne, Alan Howling, Ivo Furno, Rémy Jacquier

The coupling between an inductive source and the plasma determines the power transfer efficiency and the reflected impedance in the primary circuit. Usually, the plasma coupling is analysed by means of a transformer equivalent circuit, where the plasma ind ...

Iop Publishing Ltd2015

Superdiffusive transport in laboratory and astrophysical plasmas

Ambrogio Fasoli, Ivo Furno, Alexandre Dominique Bovet, Paolo Ricci, Kyle Gustafson

In the last few years it has been demonstrated, both by data analysis and by numerical simulations, that the transport of energetic particles in the presence of magnetic turbulence can be superdiffusive rather than normal diffusive (Gaussian). The term ‘su ...

Cambridge University Press2015

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IOP Publishing Ltd2017