Publications by Costanza Zucca

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

Olivier Sauter, Stefano Coda, Timothy Goodman, Jonathan Graves, Costanza Zucca, Martin Jucker, 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, Costanza Zucca, Hartmut Zohm, Frank Rüdiger Wagner

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, Costanza Zucca, Hartmut Zohm

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

Olivier Sauter, Stefano Coda, Timothy Goodman, 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

Olivier Sauter, Timothy Goodman, Stefano Alberti, 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

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

Global plasma oscillations in electron internal transport barriers in TCV

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

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