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Philippe Frédérique Bruno Guittienne

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Related publications (36)

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Cavity ring-down spectroscopy to measure negative ion density in a helicon plasma source for fusion neutral beams

Ivo Furno, Alan Howling, Gennady Plyushchev, Yanis Andrebe, Riccardo Agnello, Philippe Frédérique Bruno Guittienne, Rémy Jacquier

Cavity Ring Down Spectroscopy (CRDS) is used to measure the D- absolute density produced in the helicon plasma reactor RAID (Resonant Antenna Ion Device) at the Swiss Plasma Center. The birdcage geometry of the helicon antenna produces a homogeneous, high- ...

2018

R&D around a photoneutralizer-based NBI system (Siphore) in view of a DEMO Tokamak steady state fusion reactor

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

Since the signature of the ITER treaty in 2006, a new research programme targeting the emergence of a new generation of neutral beam (NB) system for the future fusion reactor (DEMO Tokamak) has been underway between several laboratories in Europe. The spec ...

IOP Publishing Ltd2015

First Thomson scattering results from AWAKE’s helicon plasma source

Ivo Furno, Yanis Andrebe, Philippe Frédérique Bruno Guittienne, Christine Stollberg, Benjamin Alexandre Vincent, Renat Karimov

We present the first results of electron density and temperature measurements obtained from Thomson scattering at the helicon plasma source (HPS) for the AWAKE project. These measurements are compared to simulation results from a 1D power and particle bala ...

2024

Helicon wave-generated plasmas for negative ion beams for fusion

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

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

Resonant network antennas for radio-frequency plasma sources: Theory, technology and applications

Ivo Furno, Alan Howling, Philippe Frédérique Bruno Guittienne

Resonant antennas are increasingly employed by the plasma industry, and the theory has now developed alongside the technological applications to the extent that it is timely to document the progress in this field to aid antenna design for future novel RF p ...

Institute of Physics Publishing2024

Plasma Jet-Substrate Interaction in Low Pressure Plasma Spray-CVD Processes

Christoph Hollenstein, Philippe Frédérique Bruno Guittienne, Malko Gindrat

Conventional equipment for plasma spraying can be adapted for operation at low pressure so that PECVD-like processing can be performed. The plasma jet generated by the torch is characterized by a high convective velocity and a high gas temperature. The inf ...

Springer US2012

First B-dot measurements in the RAID device, an alternative negative ion source for DEMO neutral beams

Ivo Furno, Alan Howling, Gennady Plyushchev, Philippe Frédérique Bruno Guittienne, Riccardo Agnello, Rémy Jacquier, Basile Marie Jacques Pouradier Duteil, Claudio Marini

As a new concept of Neutral Beam Injectors (NBI) for DEMO-like reactors, SIPHORE (IRFM, CEA, in France) expects to extract negative deuterium ions and photo-neutralize the accelerated D-. The Swiss Plasma Center (SPC) of EPFL is involved in this project by ...

Elsevier B.V.2019

Towards an optimal antenna for helicon waves excitation

Christoph Hollenstein, Philippe Frédérique Bruno Guittienne

Helicon sources are known to produce high-density plasmas and have found many applications. Different types of antenna have been used for helicon excitation but none of them generate a radio-frequency (rf) field that matches the helicon wave field determin ...

2005

RF bias to suppress post-oxidation of mu c-Si:H films deposited by inductively-coupled plasma using a planar RF resonant antenna

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

One challenge for microcrystalline silicon (mu c-Si:H) deposition is to achieve high deposition rates while maintaining high quality films. In this work, an inductively-coupled plasma (ICP) is used to deposit mu c-Si:H on glass substrates by means of a nov ...

2018

Two-fluid plasma model for radial Langmuir probes as a converging nozzle with sonic choked flow, and sonic passage to supersonic flow

Ivo Furno, Alan Howling, Philippe Frédérique Bruno Guittienne

Using the Lambert function, Guittienne et al. [Phys. Plasmas 25, 093519 (2018)] derived two-fluid solutions for radial Langmuir probes in collisionless and isothermal plasma. In this Brief Communication, we point out the close analogy with classical compre ...

American Institute of Physics (AIP)2019

Generation of Whistler-Wave Heated Discharges with Planar Resonant rf Networks

Christoph Hollenstein, Alan Howling, Philippe Frédérique Bruno Guittienne

Magnetized plasma discharges generated by a planar resonant rf network are investigated. A regime transition is observed above a magnetic field threshold, associated with rf waves propagating in the plasma and which present the characteristics of whistler ...

Amer Physical Soc2013

Determination of atomic hydrogen density and fluorescence decay time by 1D resolved, picosecond TALIF in the RAID linear device

Ivo Furno, Yanis Andrebe, Marcelo Baquero Ruiz, Philippe Frédérique Bruno Guittienne, Rémy Jacquier, Christine Stollberg, Renat Karimov

We report on the first 1D resolved two-photon absorption laser-induced fluorescence (TALIF) measurements of atomic hydrogen (H) performed in the Resonant Antenna Ion Device using a picosecond laser system. The results are obtained across a cylindrical plas ...

2024

Method and device for determining plasma characteristics

Ivo Furno, Alan Howling, Philippe Frédérique Bruno Guittienne

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

Mechanisms of films and coatings formation from gaseous and liquid precursors with low pressure plasma spray equipment

Christoph Hollenstein, Philippe Frédérique Bruno Guittienne, Malko Gindrat

Plasma spraying is a well developed and widely used technology, successfully applied for ceramic and metal coatings in many fields of applications such as aeronautics, gas turbine, automotive or medical. The coatings obtained are usually intentionally poro ...

Elsevier2009

A birdcage resonant antenna for helicon wave generation in TORPEX

Ivo Furno, Alan Howling, Robert Bertizzolo, Marcelo Baquero Ruiz, Philippe Frédérique Bruno Guittienne, Rémy Jacquier, Simon Pierre Henri Vincent, Cyrille Joseph Sepulchre, Patrick Campbell Quigley

A birdcage resonant helicon antenna is designed, mounted, and tested in the toroidal device TORPEX. The birdcage resonant antenna is an alternative to the usual Boswell or half-helical antenna designs commonly used for ∼ 10 cm diameter helicon sources in l ...

2024

Etudes dynamiques du retournement de l'aimantation induit par un courant dans un nanofil ferro magnétique [i.e. ferromagnétique]

Philippe Frédérique Bruno Guittienne

EPFL2002