Publications de Igor Klimanov | EPFL Graph Search

High-resolution multiwire proportional soft x-ray diagnostic measurements on TCV

Antoine Pochelon, Henri Weisen, Igor Klimanov, Andrea Scarabosio, Yann Camenen

2008

First measurements of oblique ECE with a real-time moveable line-of-sight on TCV

Timothy Goodman, Olivier Sauter, Christian Schlatter, Igor Klimanov

Electron cyclotron (EC) emission (ECE) radiometers viewing perpendicular to the magnetic field are common on nearly all tokamaks for measuring the electron temperature with good spatio-temporal resolution. Two such radiometers are installed on TCV, one loo ...

American Nuclear Society2008

Generation of suprathermal electrons during sawtooth crashes in a tokamak plasma

Ambrogio Fasoli, Timothy Goodman, Igor Klimanov

The acceleration of electrons during a sawtooth crash is demonstrated in various regimes of the TCV tokamak plasma. Simultaneous measurements of electron cyclotron emission from the low field side and from the high field side of the tokamak provide informa ...

2007

Electron Bernstein wave heating of over-dense H-mode plasmas in the TCV tokamak via O-X-B double mode conversion

Basil Duval, Timothy Goodman, Yves Martin, Jean-Marc Moret, Antoine Pochelon, Stefano Coda, Igor Klimanov, Laurie Porte, Loïc Curchod, Yann Camenen

This paper reports on the first demonstration of electron Bernsteinwave heating (EBWH) by double mode conversion from ordinary (O-) to Bernstein (B-) via the extraordinary (X-) mode in an over-dense tokamak plasma, using low field side launch, achieved in ...

International Atomic Energy Agency2007

Recent electron cyclotron emission results on TCV

Patrick Blanchard, Basil Duval, Timothy Goodman, Pierre-François Isoz, Xavier Llobet, Philippe Marmillod, Olivier Sauter, Henri Weisen, Stefano Coda, Christian Schlatter, Igor Klimanov, Laurie Porte, Emiliano Fable

Electron cyclotron emission (ECE) diagnostics on Tokamak a Configuration Variable (TCV) allow study of the electron temperature evolution in time with good spatial and temporal resolution at the high field side and low field side at various lines of sight. ...

2007

Plasma Dynamics with Second and Third Harmonic ECRH on TCV Tokamak

Gilles Arnoux, Patrick Blanchard, Stefano Alberti, Ambrogio Fasoli, Timothy Goodman, Yves Martin, Henri Weisen, Stefano Coda, Igor Klimanov, Andrea Scarabosio, Laurie Porte, Alessandro Bortolon, Mikhail Maslov

2006

The effect of ECRH on the electron velocity distribution function

Gilles Arnoux, Patrick Blanchard, Stefano Alberti, Ambrogio Fasoli, Stefano Coda, Igor Klimanov

Electron cyclotron resonance heating (ECRH) is a mature technology that has progressed constantly over a period of forty years, particularly as a tool in magnetic confinement fusion. As with other heating methods, this technique has seen a steady increase ...

Institute of Physics2006

Reconstruction of the electron distribution function during ECRH/ECCD and magnetic reconnection events in a tokamak plasma

Igor Klimanov

The performance of tokamaks is usually described in terms of plasma temperature, density and confinement time. The term temperature implies that the plasma is in thermal equilibrium and its particles have maxwellian (normal) velocity distribution. However, ...

EPFL2006

Oscillations of Electron Temperature and Their Interplay with MHD in the Presence of Internal Transport Barriers on TCV

Timothy Goodman, Antoine Pochelon, Olivier Sauter, Henri Weisen, Stefano Coda, Igor Klimanov, Emiliano Fable

2006

Electron Bernstein Wave Heating of Overdense H-mode Plasmas in the TCV Tokamak via O-X-B Double Mode Conversion

Basil Duval, Timothy Goodman, Yves Martin, Jean-Marc Moret, Antoine Pochelon, Stefano Coda, Igor Klimanov, Laurie Porte, Loïc Curchod, Yann Camenen

2006

Influence of non-Maxwellian velocity distributions during ECRH and ECCD on electron temperature measurements by Thomson scattering

Roland Behn, Olivier Sauter, Petri Nikkola, Igor Klimanov

Deposition of electron cyclotron waves at high-power densities for heating and current drive in a tokamak plasma generates a population of fast electrons and therefore the velocity distribution of the electron population will deviate from a Maxwellian. Apa ...

2005

O-X-B Mode Conversion in the TCV Tokamak

Basil Duval, Timothy Goodman, Yves Martin, Antoine Pochelon, Stefano Coda, Igor Klimanov, Laurie Porte

2005

Safety factor profile requirements for electron ITB formation in TCV

Gilles Arnoux, Stefano Alberti, Kurt Appert, Roland Behn, René Chavan, Basil Duval, Damien Fasel, Ambrogio Fasoli, Timothy Goodman, Pierre-François Isoz, Pierre Lavanchy, Jonathan Bryan Lister, Xavier Llobet, Jean-Claude Magnin, Blaise Marlétaz, Philippe Marmillod, Yves Martin, Jean-Marc Moret, Albert Perez, Richard Pitts, Antoine Pochelon, Olivier Sauter, Markus Siegrist, Gilbert Tonetti, Minh Quang Tran, Henri Weisen, Jean-Philippe Hogge, Stefano Coda, Christian Schlatter, Andrei Martynov, Petri Nikkola, Alberto Bottino, Karin Schombourg, Alexey Zabolotskiy, Ugo Siravo, Marco Wischmeier, Jonathan Rossel, Pierre Etienne, Igor Klimanov, Jan Horacek, Andrea Scarabosio, Alexander Karpushov, , , , , , , , , , , ,

Electron cyclotron emission spectrometry on the Tokamak a Configuration Variable

Patrick Blanchard, Stefano Alberti, Ambrogio Fasoli, Timothy Goodman, Igor Klimanov, Laurie Porte

Electron cyclotron emission (ECE) measurements are an important component of the diagnostic suite on the Tokamak a Configuration Variable (TCV) [F. Hoffman , Plasma Phys. Controlled Fusion 36, B277 (1994)]. A recently installed, 24-channel dual-conversion ...

2005