Person

Lucia Isabel Federspiel

This person is no longer with EPFL

Related publications (16)

Overview of toroidal momentum transport

Basil Duval, Yann Camenen, Alessandro Bortolon, Lucia Isabel Federspiel, Giovanni Tardini

Toroidal momentum transport mechanisms are reviewed and put in a broader perspective. The generation of a finite momentum flux is closely related to the breaking of symmetry (parity) along the field. The symmetry argument allows for the systematic identifi ...

2011

Experimental demonstration of an up-down asymmetry effect on intrinsic rotation in the TCV tokamak

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

A new mechanism has recently been proposed that generates a radial flux of parallel momentum in toroidal plasmas. Namely, by considering up-down asymmetric flux surfaces, the symmetry following the magnetic field can be broken and an additional contributio ...

Institute of Physics2010

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

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

Electrostatic instabilities, turbulence and fast ion interactions in the TORPEX device

Ambrogio Fasoli, Ivo Furno, Paolo Ricci, Benoît Labit, Christian Gabriel Theiler, Joaquim Loizu Cisquella, Mario Ludovico Podesta, Francesca Maria Poli, Gennady Plyushchev, Kyle Gustafson, Lucia Isabel Federspiel, Davoud Iraji, Stefan Müller, Alice Burckel

Electrostatic turbulence, related structures and their effect on particle, heat and toroidal momentum transport are investigated in TORPEX simple magnetized plasmas using high-resolution diagnostics, control parameters, linear fluid models and nonlinear nu ...

Institute of Physics2010

Transport and turbulence reduction with negative triangularity : Correlation ECE measurements in TCV

Olivier Sauter, Basil Duval, Stefano Coda, Timothy Goodman, Laurent Villard, Jean-Marc Moret, Stephan Brunner, Benoît Labit, Laurie Porte, Alexander Karpushov, Antoine Pochelon, Yann Camenen, Roland Behn, Alberto Bottino, Sébastien Jolliet, Emiliano Fable, Philippe Marmillod, Ben McMillan, Alessandro Marinoni, Lucia Isabel Federspiel, Andreas Pitzschke, Mikael Rancic

Turbulence and Transport Reduction with Negative Triangularity : Correlation ECE Measurements in TCV Due to turbulence, core energy transport in fusion devices such as tokamaks generally exceeds collisional transport by at least an order of magnitude. It i ...

2010

Observation of a critical pressure gradient for the stabilization of interchange modes in simple magnetized toroidal plasmas

Ambrogio Fasoli, Ivo Furno, Paolo Ricci, Benoît Labit, Christian Gabriel Theiler, Lucia Isabel Federspiel

The existence of a critical pressure gradient needed to drive the interchange instability is experimentally demonstrated in the simple magnetized torus TORoidal Plasma EXperiment [A. Fasoli et al., Phys. Plasmas 13, 055902 (2006)]. This gradient is reached ...

American Institute of Physics2009

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