Publications by Philippe Marmillod

New capabilities of the incoherent Thomson scattering diagnostics in the TCV tokamak: divertor and real-time measurements

Patrick Blanchard, Basil Duval, Pierre-François Isoz, Pierre Lavanchy, Xavier Llobet, Blaise Marlétaz, Philippe Marmillod, Yanis Andrebe, Severino Antonioni, Federico Alberto Alfredo Felici, Steve Couturier, Joan Decker, Cristian Galperti

This work reports developments of the incoherent TS diagnostic capabilities in the Tokamak a Configuration Variable (TCV). Their goals are to (i) diagnose the TCV divertor region, and (ii) provide Te and ne profiles of the plasma bulk in real-time. These t ...

IOP PUBLISHING LTD2019

LTCC magnetic sensors at EPFL and TCV: Lessons learnt for ITER

Thomas Maeder, Pierre Lavanchy, Jonathan Bryan Lister, Xavier Llobet, Blaise Marlétaz, Philippe Marmillod, Matthias Garcin, Ugo Siravo, Caroline Jacq, Christian Moura, Duccio Testa, Frédéric Dolizy, Severino Antonioni, Matthieu Toussaint, Steve Couturier, Adrien Aymeric Thibault Corne, Aylwin Iantchenko, Lorenzo Stipani

Innovative 3D high-frequency magnetic sensors have been designed and manufactured in-house for installation on the Tokamak a Configuration Variable (TCV), and are currently routinely operational. These sensors combine the Low Temperature Co-fired Ceramic ( ...

2019

Langmuir probe electronics upgrade on the tokamak a configuration variable

René Chavan, Pierre Lavanchy, Blaise Marlétaz, Philippe Marmillod, Richard Pitts, Benoît Labit, Christian Gabriel Theiler, Hugo De Oliveira

A detailed description of the Langmuir probe electronics upgrade for TCV (Tokamak a Configuration Variable) is presented. The number of amplifiers and corresponding electronics has been increased from 48 to 120 in order to simultaneously connect all of the ...

2019

Improving spatial and spectral resolution of TCV Thomson scattering

Patrick Blanchard, René Chavan, Basil Duval, Pierre Lavanchy, Xavier Llobet, Philippe Marmillod, Yanis Andrebe, Robert Bertizzolo, Matthieu Toussaint, Joan Decker

The recently completed MST2 upgrade to the Thomson scattering (TS) system on TCV (Tokamak a Configuration Variable) at the Swiss Plasma Center aims to provide an enhanced spatial and spectral resolution while maintaining the high level of diagnostic flexib ...

Iop Publishing Ltd2017

High sensitivity field asymmetric ion mobility spectrometer

Philippe Marmillod, Giovanni Boero, Jürgen Brugger, Mario Andres Chavarria Varon, Alessandro Valentino Matheoud

A high sensitivity field asymmetric ion mobility spectrometer (FAIMS) was designed, fabricated, and tested. The main components of the system are a 10.6 eV UV photoionization source, an ion filter driven by a high voltage/high frequency n-MOS inverter circ ...

American Institute of Physics2017

Neutral beam heating on the TCV tokamak

René Chavan, Basil Duval, Damien Fasel, Ambrogio Fasoli, Pierre Lavanchy, Xavier Llobet, Blaise Marlétaz, Philippe Marmillod, Yves Martin, Albert Perez, Olivier Sauter, Stefano Coda, Ugo Siravo, Alexander Karpushov, Frédéric Dolizy, Matthieu Toussaint, Antoine Pierre Emmanuel Alexis Merle

2017

Commissioning of the heating neutral beam injector on the TCV tokamak

Damien Fasel, Blaise Marlétaz, Philippe Marmillod, Albert Perez, Ugo Siravo, Alexander Karpushov, Yanis Andrebe, Jérémie Dubray

2017

Upgrade of a 30 kV/10 mA anode power supply for triode type gyrotron

Stefano Alberti, Damien Fasel, Blaise Marlétaz, Philippe Marmillod, Albert Perez, Jean-Philippe Hogge, Ugo Siravo, Jérémie Dubray

The RF power of a gyrotron with a triode type magnetron-injection-gun (MIG) can be directly controlled via the voltage applied between its anode and its cathode. Hence, the performance of this type of gyrotron relies directly on the possibilities offered b ...

Elsevier Science Sa2015

Development of the ITER Continuous External Rogowski: From conceptual design to final design

Jonathan Bryan Lister, Philippe Marmillod, Christian Schlatter, Duccio Testa, Matthieu Toussaint

In ITER, an accurate measurement of plasma current, with high reliability, is mandatory as this parameter is used to demonstrate licensing compliance with regulatory limits. For that purpose, several independent measurements based on magnetic diagnostics h ...

Elsevier Science Sa2015

Electron Cyclotron Emission (ECE) And Correlation ECE Diagnostic On TCV

Philippe Marmillod, Laurie Porte, Matteo Fontana

The electron cyclotron emission (ECE) and correlation ECE diagnostics in TCV have been upgraded during its 2014 shutdown; this paper will provide a brief overview on their updated architecture and capabilities. The ECE system is equipped with two radiomete ...

2015

Hard X-ray tomographic spectroscopy in TCV

Philippe Marmillod, Stefano Coda, Silvano Gnesin, Josef Kamleitner

2015

Hard X-ray tomographic spectroscopy in TCV

Philippe Marmillod, Stefano Coda, Silvano Gnesin, Josef Kamleitner

2015

Distributed digital real-time control system for TCV tokamak

Basil Duval, Damien Fasel, Philippe Marmillod, Jean-Marc Moret, Olivier Sauter, Stefano Coda, James Paley, Federico Alberto Alfredo Felici, Hoang Bao Le

A new digital feedback control system (named the SCD "Systeme de Controle Distribue") has been developed, integrated and used successfully to control TCV (Tokamak a Configuration Variable) plasmas. The system is designed to be modular, distributed, and sca ...

Elsevier Science Sa2014

Comparative analysis of digital pulse processing methods at high count rates

Philippe Marmillod, Stefano Coda, Silvano Gnesin, Josef Kamleitner

An extensive study of digital pulse processing methods is presented. Existing methods, both traditional and more recent, are compared with original advanced techniques within an appropriate modeling and benchmarking framework. This comprehensive approach e ...

Elsevier Science Bv2014

Prototyping and testing of the Continuous External Rogowski ITER magnetic sensor

Jonathan Bryan Lister, Philippe Marmillod, Duccio Testa, Matthieu Toussaint

The measurement of the plasma current in ITER plays an outstanding role as it is part of the machine protection and is a safety-relevant measurement: it will be used in relation with regulatory limits to show that the operation remains within the safe enve ...

Elsevier Science Sa2013

A radio frequency/high voltage pulse generator for the operation of a planar multipole ion trap/time-of-flight mass spectrometer

Philippe Marmillod, Severino Antonioni, Ulrich Lorenz

We present a radio frequency (RF)/high voltage pulse generator designed to provide suitable waveforms for the operation of a planar multipole ion trap/time-of-flight mass spectrometer. Our generator supplies a RF signal to two pairs of trapping electrodes, ...

American Institute of Physics2013

Practical solutions for reliable triple probe measurements in magnetized plasmas

Ambrogio Fasoli, Philippe Marmillod, Ivo Furno, Christian Gabriel Theiler

The triple probe method to obtain local, time-resolved measurements of density, electron temperature and plasma potential is investigated in detail. The difficulties in obtaining reliable measurements with this technique are discussed and overcome. These i ...

2011

Design of the ITER high-frequency magnetic diagnostic coils

Thomas Maeder, Nadine Baluc, René Chavan, Jonathan Bryan Lister, Philippe Marmillod, Duccio Testa, Francisco Sanchez, Matthieu Toussaint

This paper is an overview of work carried out on the design of the ITER high-frequency magnetic diagnostic coil (HF sensor). In the first part, the ITER requirements for the HF sensor are presented. In the second part, the ITER reference design of the HF s ...

Elsevier2011

First experimental results from the European Union 2 MW coaxial cavity ITER gyrotron prototype

Stefano Alberti, Damien Fasel, Timothy Goodman, Pierre Lavanchy, Blaise Marlétaz, Philippe Marmillod, Albert Perez, Minh Quang Tran, Jean-Philippe Hogge, Ugo Siravo, Laurie Porte, Emmanuel Droz, Ioannis Pagonakis

The European Union is working toward providing 2-MW, coaxial-cavity, continuous-wave (cw) 170-GHz gyrotrons for ITER. Their design is based on results,from an experimental preprototype tube having a pulse length of several milliseconds, in operation at For ...

American Nuclear Society2009

Status of development of the 2MW, 170GHz coaxial-cavity gyrotron for ITER

Stefano Alberti, Damien Fasel, Blaise Marlétaz, Philippe Marmillod, Albert Perez, Minh Quang Tran, Jean-Philippe Hogge, Ugo Siravo, Laurie Porte, Emmanuel Droz, Ioannis Pagonakis

2008