Publications by Costanza Zucca

Power requirements for electron cyclotron current drive and ion cyclotron resonance heating for sawtooth control in ITER

Timothy Goodman, Olivier Sauter, Stefano Coda, Martin Jucker, Jonathan Graves, Costanza Zucca, Otto Asunta

13 MW of electron cyclotron current drive (ECCD) power deposited inside the q = 1 surface is likely to reduce the sawtooth period in ITER baseline scenario below the level empirically predicted to trigger neoclassical tearing modes (NTMs). However, since t ...

IOP Publishing Ltd2013

On the heating mix of ITER

Olivier Sauter, Minh Quang Tran, Frank Rüdiger Wagner, Hartmut Zohm, Costanza Zucca

This paper considers the heating mix of ITER for the two main scenarios. Presently, 73MWof absorbed power are foreseen in the mix 20/33/20 for ECH, NBI and ICH. Given a sufficient edge stability, Q = 10 the goal of scenario 2 can be reached with 40MW power ...

IOP2010

Modeling and control of the current density profile in tokamaks and its relation to electron transport

Costanza Zucca

The current density in tokamak plasmas strongly affects transport phenomena, therefore its understanding and control represent a crucial challenge for controlled thermonuclear fusion. Within the vast framework of tokamak studies, three topics have been tac ...

EPFL2009

On the Requirements to Control Neoclassical Tearing Modes in Burning Plasmas

Olivier Sauter, Hartmut Zohm, Costanza Zucca

Neoclassical tearing modes (NTMs) are magnetic islands which increase locally the radial transport and therefore degrade the plasma performance. They are self-sustained by the bootstrap current perturbed by the enhanced radial transport. The confinement de ...

2009

Current density evolution in electron internal transport barrier discharges in TCV

Timothy Goodman, Olivier Sauter, Stefano Coda, Emiliano Fable, Costanza Zucca

Simulations of the plasma current density evolution in electron internal transport barrier discharges on the Tokamak a Configuration Variable (TCV) have been performed, in order to determine the relationship between the safety-factor profile and the electr ...

2009

Modulation of electron transport during Swing ECCD discharges in TCV

Stefano Alberti, Timothy Goodman, Olivier Sauter, Costanza Zucca

Generation of a swing electron cyclotron current drive (swing ECCD), i.e. driving alternated, symmetric, positive or negative local ECCD, during a single discharge and at constant total input EC power, was performed at the Tokamak a Configuration Variable ...

IOP2009

Global plasma oscillations in electron internal transport barriers in TCV

Timothy Goodman, Olivier Sauter, Andrea Scarabosio, Jonathan Graves, Emiliano Fable, Costanza Zucca

2008

The role of MHD in the sustainment of electron internal transport barriers and H-mode in TCV

Stefano Alberti, Timothy Goodman, Yves Martin, Olivier Sauter, Laurie Porte, Costanza Zucca

2008

Physics analysis of the ITER ECW system for optimized performance

Olivier Sauter, Hartmut Zohm, Costanza Zucca, Emanuele Poli

IOP Publishing Ltd2008

Overview of the ITER EC upper launcher

René Chavan, Olivier Sauter, Joseph Duron, Robert Bertizzolo, Francisco Sanchez, Frédéric Dolizy, Costanza Zucca

IOP Publishing Ltd2008

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

The role of MHD in the sustainment of electron internal transport barriers and H-mode in TCV confinement during flat-top eITB plasmas on TCV

Stefano Alberti, Timothy Goodman, Olivier Sauter, Laurie Porte, Costanza Zucca

2007

The physics of electron internal transport barriers in the TCV tokamak

Roland Behn, Timothy Goodman, Olivier Sauter, Stefano Coda, Emiliano Fable, Costanza Zucca, Alessandro Marinoni

Electron internal transport barriers (elTBs) are generated in the TCV tokamak with strong electron cyclotron resonance heating in a variety of conditions, ranging from steady-state fully noninductive scenarios to stationary discharges with a finite inducti ...

International Atomic Energy Agency2007

Costanza Zucca

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Power requirements for electron cyclotron current drive and ion cyclotron resonance heating for sawtooth control in ITER

On the heating mix of ITER

Modeling and control of the current density profile in tokamaks and its relation to electron transport

On the Requirements to Control Neoclassical Tearing Modes in Burning Plasmas

Current density evolution in electron internal transport barrier discharges in TCV

Modulation of electron transport during Swing ECCD discharges in TCV

Global plasma oscillations in electron internal transport barriers in TCV

The role of MHD in the sustainment of electron internal transport barriers and H-mode in TCV

Physics analysis of the ITER ECW system for optimized performance

Overview of the ITER EC upper launcher

Snowflake Divertor Plasmas on TCV

The role of MHD in the sustainment of electron internal transport barriers and H-mode in TCV confinement during flat-top eITB plasmas on TCV

The physics of electron internal transport barriers in the TCV tokamak

The role of MHD in the sustainment of electron internal transport barriers and H-mode in TCV

The Enhanced Performance Launcher Design For The ITER Upper Port ECH Antenna

The role of MHD in the sustainment of electron internal transport barriers and H-mode in TCV

Effects of local ECCD driven by the optimized equatorial and Upper EC launchers on ITER

MHD detrimental effect on the confinement during flat-top eITB plasmas on TCV

Critical Issues Associated with the ITER ECH System

MHD detrimental effect on the confinement during flat-top eITB plasmas on TCV