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Basil Duval

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Related publications (369)

Experimental Evidence of Momentum Transport Induced by an Up-Down Asymmetric Magnetic Equilibrium in Toroidal Plasmas

Basil Duval, Olivier Sauter, Alexander Karpushov, Yann Camenen, Lucia Isabel Federspiel, Alessandro Bortolon, Francesco Piras

The first experimental evidence of parallel momentum transport generated by the up-down asymmetry of a toroidal plasma is reported. The experiments, conducted in the Tokamak a` Configuration Variable, were motivated by the recent theoretical discovery of i ...

2010

"Snowflake" H Mode in a Tokamak Plasma

Basil Duval, Jean-Marc Moret, Olivier Sauter, Stefano Coda, Benoît Labit, János Márki, Andreas Pitzschke, Francesco Piras

An edge-localized mode (ELM) H-mode regime, supported by electron cyclotron heating, has been successfully established in a snowflake (second-order null) divertor configuration for the first time in the TCV tokamak. This regime exhibits 2 to 3 times lowe ...

The American Physical Society2010

Snowflake divertor experiments on TCV

Basil Duval, Jean-Marc Moret, Olivier Sauter, Stefano Coda, Benoît Labit, János Márki, Andreas Pitzschke, Francesco Piras

An ELMy H-mode 'snowflake' (SF) divertor is established and studied for the first time in the TCV tokamak. The H-mode access and the edge localized mode (ELM) dynamics are compared with a conventional single-null diverted configuration. The SF configuratio ...

Institute of Physics2010

Real time control of plasmas and ECRH systems on TCV

Basil Duval, Timothy Goodman, Yves Martin, Jean-Marc Moret, Stefano Coda, James Paley, Francesco Piras, Federico Alberto Alfredo Felici

Developments in the real time control hardware on Tokamak à Configuration Variable (TCV) coupled with the flexibility of plasma shaping and electron cyclotron (EC) heating and current drive actuators are opening many opportunities to perform real time expe ...

IOP Publishing Ltd2009

The diagnostic neutral beam injector with arc-discharge plasma source on the TCV Tokamak

Basil Duval, Alexander Karpushov, Yanis Andrebe, Alessandro Bortolon

The diagnostic neutral beam injector (DNBI) together with a charge exchange recombination spectroscopy (CXRS) system has been used on the TCV Tokamak as a diagnostic tool for local measurements of plasma ion temperature, velocity and carbon impurity densit ...

Elsevier B.V.2009

Spontaneous L-mode plasma rotation scaling in the TCV tokamak

Basil Duval, Richard Pitts, Antoine Pochelon, Olivier Sauter, Andrea Scarabosio, Alexander Karpushov, Alessandro Bortolon

2008

The integration of the new advanced digital plasma control system in TCV

Basil Duval, Xavier Llobet, Yves Martin, Jean-Marc Moret

2008

Snowflake Divertor Plasmas on TCV

Basil Duval, Jean-Marc Moret, Richard Pitts, Antoine Pochelon, Olivier Sauter, Ivo Furno, Stefano Coda, Costanza Zucca, Francesco Piras, Federico Alberto Alfredo Felici, Attila Bencze

Starting from a standard single null X-point configuration, a second order null divertor (snowflake (SF)) has been successfully created on the Tokamak à Configuration Variable (TCV) tokamak. The magnetic properties of this innovative configuration have bee ...

PPCF2008

Inter-machine comparison of intrinsic toroidal rotation in tokamaks

Basil Duval, Antoine Pochelon, Andrea Scarabosio, Alessandro Bortolon

Parametric scalings of the intrinsic (spontaneous, with no external momentum input) toroidal rotation observed on a large number of tokamaks have been combined with an eye towards revealing the underlying mechanism(s) and extrapolation to future devices. T ...

IOP Publishing Ltd2007

Experiments with real-time controlled ECW on the TCV Tokamak

Gilles Arnoux, Stefano Alberti, Basil Duval, Timothy Goodman, Jean-Marc Moret, Stefano Coda, Laurie Porte, Yann Camenen, James Paley

2007

Ion Temperature Fluctuations in ELMy H-mode of the X3 EC-heated Plasmas on TCV

Basil Duval, Christian Schlatter, Alexander Karpushov

This paper focuses on interpreting variations in the NPA measured energy distribution of neutral fluxes from the TCV high density H-mode plasma discharges with strong third harmonic electron cyclotron heating (P_{X3}>P_{\Omega}). Two quasi-stationary regim ...

2007

Bulk Plasma Rotation in the TCV Tokamak in the Absence of External Momentum Input (Invited paper)

Basil Duval, Richard Pitts, Antoine Pochelon, Andrea Scarabosio, Alexander Karpushov, Alessandro Bortolon

2007

Ion-Acoustic Turbulence in ECCD-driven TCV plasmas

Basil Duval, Timothy Goodman, Christian Schlatter, Alexander Karpushov

2007

Spontaneous Plasma Rotation Scaling in the TCV Tokamak

Basil Duval

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

Ion Temperature Fluctuations in ELMy H-mode of the X3 EC-heated Plasmas on TCV

Basil Duval, Christian Schlatter, Alexander Karpushov

2007

Physics insight from plasma shaping experiments in the TCV tokamak

Stephan Brunner, Stefano Alberti, Roland Behn, Basil Duval, Ambrogio Fasoli, Timothy Goodman, Antoine Pochelon, Ivo Furno, Holger Reimerdes, Stefano Coda, Alberto Bottino, Andrea Scarabosio, Yann Camenen, Jonathan Graves, Alessandro Bortolon, Alessandro Marinoni

2007

Time resolved measurements by the pulse height analysis soft x-ray diagnostic on TCV

Basil Duval

A single chord, single processing chain, hybrid (analog/digital) pulse height analysis diagnostic has been developed for the TCV tokamak, aiming to provide the evolution of the plasma electron temperature with a software selectable minimum temporal resolut ...

2007

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

Bulk Plasma Rotation in the TCV Tokamak in the Absence of External Momentum Input

Basil Duval, Richard Pitts, Antoine Pochelon, Andrea Scarabosio, Alexander Karpushov, Alessandro Bortolon

2007

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