Concept

Stellar corona

Publications associées (164)

Recent results from the electron cyclotron heated plasmas in Tokamak à Configuration Variable (TCV)

Olivier Sauter, Ambrogio Fasoli, Basil Duval, Stefano Coda, Timothy Goodman, Yves Martin, Jean-Marc Moret, Stefano Alberti, Ivo Furno, Minh Quang Tran, Patrick Blanchard, Holger Reimerdes, Jean-Philippe Hogge, René Chavan, Laurie Porte, Alexander Karpushov, Damien Fasel, Xavier Llobet, Yanis Andrebe, Pierre Lavanchy, Ugo Siravo, Pierre Etienne, Henri Weisen, Jonathan Bryan Lister, Richard Pitts, Antoine Pochelon, Yann Camenen, Kurt Appert, Jan Horacek, Roland Behn, Marco Wischmeier, Philippe Marmillod, Gilbert Tonetti, Albert Perez, Andrea Scarabosio, Gilles Arnoux, Blaise Marlétaz, Pierre-François Isoz, Igor Klimanov, Jean-Claude Magnin, Andrei Martynov, Petri Nikkola, Adriano Manini, Paolo Bosshard, Jean-Yves Favez, Edgar Scavino

In noninductively driven discharges, 0.9 MW second harmonic (X2) off-axis co-electron cyclotron current drive deposition is combined with 0.45 MW X2 central heating to create an electron internal transport barrier (eITB) in steady plasma conditions resulti ...

2003

Fast single loop diamagnetic measurements on the TCV tokamak

Jean-Marc Moret, Gilbert Tonetti

Measurement of the plasma generated diamagnetic flux on tokamak a configuration variable (TCV) is used to derive the plasma pressure, as on other magnetic confinement experiments. However, specificities of the device make the measurement more difficult: fo ...

2003

Ion cyclotron range of frequencies mode conversion electron heating in deuterium-hydrogen plasmas in the Alcator C-Mod tokamak

Yu Lin

Localized direct electron heating (EH) by mode-converted (MC) ion cyclotron range of frequencies (ICRF) waves in D(H) tokamak plasmas has been clearly observed for the first time in Alcator C-Mod. Both on- and off-axis (high field side) mode conversion EH ...

2003

Recent results from the electron cyclotron heated plasmas in Tokamak à Configuration Variable (TCV)

The recent results from the electron cyclotron heated plasmas in Tokamak a configuration Variable (TCV) was discussed. Results on H-mode and highly elongated plasmas using the newly completed third harmonic (X3) system and achieving up to 100% absorption w ...

2003

Planning collision-free reaching motions for interactive object manipulation and grasping

Daniel Thalmann, Tolga Abaci, Amaury Aubel

We present new techniques that use motion planning algorithms based on probabilistic roadmaps to control 22 degrees of freedom (DOFs) of human-like characters in interactive applications. Our main purpose is the automatic synthesis of collision-free reachi ...

Blackwell Publishers for Eurographics Assoc2003

Modelling of Alfven waves in JET plasmas with the CASTOR-K code

Ambrogio Fasoli, Duccio Testa

A hybrid magnetohydrodynamic (M H D)-gyro-kinetic model CASTOR-K developed for the study of Alfven eigenmode (AE) stability in the presence of energetic ions has been applied to the interpretation of recent measurements of Alfven waves in JET. These includ ...

2002

MHD spectroscopy

Ambrogio Fasoli, Duccio Testa

Experiments are conducted on the JET tokamak to demonstrate the diagnostic potential of Magneto-Hydro-Dynamics (MHD) spectroscopy, for the plasma bulk and its suprathennal components, using Alfven eigenmodes (AEs) excited by external antennas and by energe ...

2002

High field side measurements of non-thermal electron cyclotron emission on TCV plasmas with ECH and ECCD

Stefano Coda, Stefano Alberti, Patrick Blanchard, Henri Weisen, Igor Klimanov, Petri Nikkola

Measurements of electron cyclotron emission (ECE) from the high field side of the TCV tokamak have been made on plasmas heated by second and third harmonic X-mode electron cyclotron heating (ECH) and electron cyclotron current drive (ECCD). Suprathermal EC ...

2002

Configuration flexibility and extended regimes in Large Helical Device

Wilfred Anthony Cooper, Kenji Tanaka

Recent experimental results in the Large Helical Device have indicated that a large pressure gradient can be formed beyond the stability criterion for the Mercier (high-n) mode. While the stability against an interchange mode is violated in the inward-shif ...

2001

Gyrokinetic modelling of macro-instabilities in high performance tokamak plasmas

Ambrogio Fasoli, Laurent Villard, Duccio Testa

The modelling of Alfvenic instabilities is discussed from the point of view of mode-conversion, showing how the development of the theory affects the predictions as the limitations of the models are gradually relaxed. Conventional tokamak plasmas are relat ...

2001

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