Publications de Stefano Coda | EPFL Graph Search

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The recently developed Monte-Carlo code ERO2.0 is applied to the modelling of limited and diverted discharges at JET with the ITER-like wall (ILW). The global beryllium (Be) erosion and deposition is simulated and compared to experimental results from pass ...

A variable configuration V-band heterodyne Doppler back-scattering diagnostic has been recently made operational in the tokamak a configuration variable. This article describes the hardware setup options, flexible quasi-optical launcher antenna, data-analy ...

Parallel heat flux calculations at the JET divertor have been based on the assumption that all incoming heat is due to the projection of the heat flux parallel to the magnetic line, q, plus a constant background. This simplification led to inconsistencies ...

Selected set of samples from JET ITER-Like Wall (JET-ILW) divertor tiles exposed both in 2013-2014 and 2011-2014 has been analysed using Thermal Desorption Spectrometry (TDS). The deuterium (D) amounts obtained with TDS were compared with Ion Beam Analysis ...

Plasma start-up is typically achieved manipulating poloidal magnetic fields, gas injection and possibly auxiliary heating. Model-based design techniques have been gaining increasing attention in view of future large tokamaks which have more stringent const ...

Important ingredients of the advanced-tokamak route to fusion have been explored in depth in the Tokamak a Configuration Variable [F. Hofmann, J. B. Lister, M. Anton , Plasma Phys. Controlled Fusion 36, B277 (1994)] over the past two years. Using a uniquel ...

On the basis of several recent breakthroughs in fusion research, many activities have been launched around the world to develop fusion power plants on the fastest possible time scale. In this context, high-fidelity simulations of the plasma behavior on lar ...

Experiments using ion cyclotron current drive (ICCD) to control sawteeth are presented. In particular, discharges demonstrating shortening of fast ion induced long sawteeth reported in (Eriksson et al 2004 Phys. Rev. Lett. 92 235004) by ICCD have been anal ...

A tritium imaging plate technique (TIPT) in combination with an electron-probe microscopic analysis (EPMA) were applied to examine tritium (T) retention characteristics in individual dust particles collected in the Joint European Torus with the ITER-like W ...

The paper is an overview of the H-mode physics studies on TCV. Historically, ELMy H-modes were obtained with ohmic heating only (q953 are now routinely obtained. The pedestal database developed for EUROfusion is presented and used within the paper

This paper analyses the final phase of hybrid scenario discharges at JET, the reduction of auxiliary heating towards finally the Ohmic phase. The here considered Ohmic phase is mostly still in the current flattop but may also be in the current ramp down. F ...

In plasmas heated with deuterium beams a deficit of the expected fusion neutron rate is an indicator of the deterioration of the fast-ion confinement, caused, for instance, by magnetohydrodynamic instabilities. The capability of predicting this deficit dur ...

Fishbones are ubiquitous in high-performance JET plasmas and are typically considered to be unimportant for scenario design. However, during recent high-performance hybrid scenario experiments, sporadic and explosive fishbone oscillations with sawtooth rec ...

Negative triangularity (NT) scenarios in TCV have been compared to positive triangularity (PT) scenarios using the same plasma shapes foreseen for divertor tokamak test tokamak operations. The experiments provided a NT/PT L-mode pair and a PT H-mode with d ...

The analysis of the polarimetry measurements has the aim of validating models (De Marco and Segre 1972 Plasma Phys. 14 245), with a careful attention to the clarification of their limits of application. In this paper a new approximation method is introduce ...

Stefano Coda

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Beryllium global erosion and deposition at JET-ILW simulated with ERO2.0

V-band Doppler backscattering diagnostic in the TCV tokamak

An improved model for the accurate calculation of parallel heat fluxes at the JET bulk tungsten outer divertor

Investigation of deuterium trapping and release in the JET ITER-like wall divertor using TDS and TMAP

Automated shot-to-shot optimization of the plasma start-up scenario in the TCV tokamak

High-bootstrap, noninductively sustained electron internal transport barriers in the Tokamak a Configuration Variable

Milestone in predicting core plasma turbulence: successful multi-channel validation of the gyrokinetic code GENE

On ion cyclotron current drive for sawtooth control

45th European physical society conference on plasma physics

Tritium retention characteristics in dust particles in JET with ITER-like wall

H-mode physics studies on TCV supported by the EUROfusion pedestal database

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

Analysis of plasma termination in the JET hybrid scenario

Simulation of neutron emission in neutral beam injection heated plasmas with the real-time code RABBIT

Full-orbit and drift calculations of fusion product losses due to explosive fishbones on JET

Experiments and gyrokinetic simulations of TCV plasmas with negative triangularity in view of DTT operations

Impact of Plasma Shaping on Electron Heat Transport in TCV L-mode Plasmas at Various Collisionalities

Electron heat transport dependence on plasma shape and collisionality in EC heated L-mode TCV plasmas

Approximate analytic expressions using Stokes model for tokamak polarimetry and their range of validity

Progress in the ITER baseline (IBL) scenario development on TCV