Concept

Gyrotron

Publications associées (105)

Modeling of neoclassical tearing mode stabilization by electron cyclotron heating and current drive in tokamak plasmas

Olivier Sauter, Federico Alberto Alfredo Felici, Kyungjin Kim, Hartmut Zohm, Emanuele Poli

An integrated numerical system is established to model time-dependent behavior of the neoclassical tearing mode (NTM) in a tokamak which solves the modified Rutherford equation (MRE) by coupling with plasma transport, equilibrium, heating and current drive ...

2016

Construction of a 4 GHz resonant cavity operating in TE011 mode: Simulation and Experiments

Tarek Axel Vennemann

During this project we studied cavities as an alternative method to stripline resonators, to create an oscillating magnetic field. We were able to simulate different cavity designs and reproduce theoretical results as a numerical simulation and experimenta ...

2015

A near infra-red video system as a protective diagnostic for electron cyclotron resonance heating operation in the Wendelstein 7-X stellarator

The Wendelstein 7-X stellarator is a large nuclear fusion device based at Max-Planck-Institut fur Plasmaphysik in Greifswald in Germany. The main plasma heating system for steady state operation in W7-X is electron cyclotron resonance heating (ECRH). Durin ...

Amer Inst Physics2015

Bunch mode specific rate corrections for PILATUS3 detectors

Philip Pattison

PILATUS X-ray detectors are in operation at many synchrotron beamlines around the world. This article reports on the characterization of the new PILATUS3 detector generation at high count rates. As for all counting detectors, the measured intensities have ...

Wiley-Blackwell2015

Moment-based, self-consistent linear analysis of gyrotron oscillators

Stefano Alberti, Minh Quang Tran, Jean-Philippe Hogge, Trach-Minh Tran

A new model for simulating gyrotron oscillators in the monomode time-dependent linear self-consistent regime is presented. Starting from a nonlinear time-dependent monomode model, the linearization and the following simplification of the model, based on a ...

Amer Inst Physics2014

From Series Production of Gyrotrons for W7-X Toward EU-1 MW Gyrotrons for ITER

Stefano Alberti, Minh Quang Tran, Jean-Philippe Hogge, Ioannis Pagonakis, Konstantinos Avramidis

Europe is devoting significant joint efforts to develop and to manufacture MW-level gyrotrons for electron cyclotron heating and current drive of future plasma experiments. The two most important ones are the stellarator Wendelstein W7-X at Greifswald and ...

Ieee-Inst Electrical Electronics Engineers Inc2014

Distributed digital real-time control system for TCV tokamak

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

Characterization method of dielectric properties of free falling drops in a microwave processing cavity and its application in microwave internal gelation

Manuel Alexandre Pouchon, Sébastien Vaucher, Cédric Cozzo

Microwave internal gelation (MIG) is a chemical process proposed for the production of nuclear particle fuel. The internal gelation reaction is triggered by a temperature increase of aqueous droplets falling by gravity by means of non-contact microwave hea ...

2013

Development Of Advanced Gyrotrons In Europe

Stefano Alberti, Jean-Philippe Hogge, Ioannis Pagonakis, Konstantinos Avramidis

The German PMW project and the European EGYC consortium are driving gyrotron developments for the two major plasma fusion experiments in Europe using ECRH, Wendelstein W7-X at Greifswald and the international ITER at Cadarache. 1 MW CW, 140 GHz conventiona ...

Amer Nuclear Soc2013

Study of the ITER Stray Magnetic Field Effect on the EU 170-GHz2-MW Coaxial Cavity Gyrotron

Stefano Alberti, Jean-Philippe Hogge, Ioannis Pagonakis, Fengping Li

In this paper, the effect of the ITER stray magnetic field (SMF) on the operation of the European gyrotron has been studied. The SMFs include the magnetic field generated by neighboring gyrotrons, the ITER tokamak, and also the field perturbations caused b ...

Ieee-Inst Electrical Electronics Engineers Inc2012

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