Publications associées à Gyrotron

Gyrotron parasitic-effects studies using the time-dependent self-consistent monomode code TWANG

Stefano Alberti, Jean-Philippe Hogge, Trach-Minh Tran, Fengping Li

Parasitic effects have recently appeared to be a potential limiting factor for reliable operation of high-power high-frequency gyrotrons. Within the domain of validity of a self-consistent monomode model, the time-dependent code TWANG has been developed wi ...

IEEE2011

Calculation of Stray Magnetic Field Effects on the Operation of the ITER Electron Cyclotron System

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

in a multi-gyrotron system such as the one presently designed for the ITER ECH & ECCD system, stray magnetic fields can significantly alter the operational capabilities of the global system. A numerical study was carried out within the European Gyrotron Co ...

IEEE Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2011

5MW CW supply system for the ITER gyrotrons Test Facility

Damien Fasel, Ugo Siravo, Albert Perez

ECH (Electron Cyclotron Heating) for ITER will deliver into the plasma 20 MW of RF power. The procurement of the RF sources will be shared equally between the three following partners: Europe, Japan and Russia. Moreover, Europe decided to develop a RF sour ...

Elsevier2011

Design studies of the dual-frequency operation of the W7-X/140GHz/1MW gyrotron at 126GHz for TCV and 168GHz for ITER

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

A detailed study of the operational capabilities of the W7-X/1MW gyrotron operated at 126GHz/TE26,7 is presented. This study is associated with the foreseen upgrade of TCV in which it is planned to add to the present EC system 3MW of additional RF power br ...

Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2010

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

Timothy Goodman, Stefano Alberti, Minh Quang Tran, Jean-Philippe Hogge, Laurie Porte, Damien Fasel, Ugo Siravo, Emmanuel Droz

The EU is working towards providing 2 MW, coaxial-cavity, CW, 170 GHz gyrotrons for ITER. Their design is based on results from an experimental pre-prototype tube in operation at FZK for several years, having a pulse length of several milliseconds. The fir ...

World Scientific Publ Co Inc, 687 Hartwell St, Teaneck, Nj 07666 Usa2009

Real time control of the sawtooth period using EC launchers

Stefano Coda, Timothy Goodman, Federico Alberto Alfredo Felici, James Paley, Francesco Piras

Tokamak plasmas operating at high performance are limited by several MHD instabilities. The sawtooth instability limits the core plasma pressure and can drive the neoclassical tearing mode unstable, but also prevents accumulation of impurities in the core. ...

Plasma Phys. Control. Fusion2009

Progress on the design and manufacturing of the mirrors for the ITER Electron Cyclotron Heating and Current Drive upper launcher

René Chavan, Jean-Daniel Landis, Francisco Sanchez, Robert Bertizzolo

Four of the 16 ITER upper port plugs will be devoted to electron cyclotron resonance heating (ECRH) in order to control the magneto-hydrodynamic (MHD) instabilities. ...

Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2009

Design and manufacturing of the ITER ECRH Upper Launcher mirrors

René Chavan, Jean-Daniel Landis, Francisco Sanchez, Robert Bertizzolo

Four of the 16 ITER upper port plugs will be devoted to electron cyclotron resonance heating (ECRH) in order to control magnetohydrodynamic (MHD) instabilities [1,2]. In order to achieve the stabilisation of the neoclassical tearing modes (NTM) and sawtoot ...

2009

Design and manufacturing of the ITER ECRH upper launcher mirrors

René Chavan, Jean-Daniel Landis, Francisco Sanchez, Robert Bertizzolo

Elsevier2009

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