Publications related to Effects of plasma shape on laser blow-off injected impurity transport in TCV

H-mode grade confinement in L-mode edge plasmas at negative triangularity on DIII-D

Plasmas with a negative triangularity shape have been created on the DIII-D tokamak that, despite maintaining standard L-mode edge radial profiles, reach volume averaged pressure levels typical of H-mode scenarios. Within the auxiliary power available for ...

2019

Simulation of plasma turbulence in the periphery of diverted tokamaks

Paola Paruta

The turbulent plasma dynamics in the periphery of a fusion device plays a key role in determining its overall performance. In fact, the periphery controls the heat load on the vessel walls, the plasma confinement, the level of impurities in the core, the ...

EPFL2018

Turbulence simulations in diverted geometry

Paolo Ricci, Paola Paruta, Maurizio Giacomin, Carrie Fiona Beadle, André Calado Coroado

Abstract The study of scrape-off layer (SOL) is a fundamental step in magnetic confinement fusion research. For example, SOL sets the boundary conditions for the tokamak core and it provides the energy flux toward the tokamak wall. With the goal of improvi ...

2018

The effect of triangularity on fluctuations in a tokamak plasma

Olivier Sauter, Stefano Coda, Laurie Porte

The effects of plasma shaping, in particular triangularity (d), on temperature fluctuations in the tokamak a configuration variable have been studied using the correlation electron cyclotron emission system. It has been found that, in ohmic discharges with ...

2018

Dependence of the L-Mode scrape-off layer power fall-off length on the upper triangularity in TCV

Stefano Coda, Holger Reimerdes, Benoît Labit, Christian Gabriel Theiler, Antoine Pierre Emmanuel Alexis Merle, Roberto Maurizio, Bernhard Sieglin

This paper reports on experimental observations on TCV with a scan in upper triangularity

{\delta }_{\mathrm{up}}

, including negative triangularity, focusing on the power fall-off length

{\lambda }_{{\rm{q}}}

in L-Mode. The upper triangularity is scann ...

2018

Self-consistent interaction of fast particles and ICRF waves in 3D applications of fusion plasma devices

Jonathan Marc Philippe Faustin

Tokamaks and stellarators are the most promising reactor concepts using the magnetic confinement to contain the plasma fuel. Reactors capable of sustaining deuterium-tritium (D-T) fusion reactions requires the confinement of a very high temperature plasma ...

EPFL2017

Effect of pool confinement on pressures around a block impacted by plunging aerated jets

Anton Schleiss, Rafael Xavier Meriade Duarte

The erosion caused by jets issued from hydraulic structures progressively develops a confined scour-hole on the riverbed. A realistic scour assessment must consider both the influence of the air entrained when the jet plunges into the pool and the flow pat ...

National Research Council Canada2016

Turbulence at the boundary of toroidal plasmas with open and closed magnetic flux surfaces

Fabio Avino

The control and confinement of fusion plasmas are currently limited by a lack of understanding of the physical mechanisms behind the evolution of the turbulent transport experienced by particles and energy. In-situ investigations of plasma turbulence in fu ...

EPFL2015

On the non-stiffness of edge transport in L-mode tokamak plasmas

Olivier Sauter, Basil Duval, Stefano Coda, Timothy Goodman, Stephan Brunner, Alexander Karpushov, Antoine Pierre Emmanuel Alexis Merle, Yann Camenen, Roland Behn, Doohyun Kim, Gabriele Merlo, Lucia Isabel Federspiel, Donghyun Kim

Transport analyses using first-principle turbulence codes and 11/2-D transport codes usually study radial transport properties between the tokamak plasma magnetic axis and a normalized minor radius around 0.8. In this region, heat transport shows significa ...

Amer Inst Physics2014

Digital Control System for Vertical Stability of the TCV Plasma

In advanced mode operation of fusion devices, real time control plays a central role in achieving the desired plasma performance and minimizing the risk of disruptions. With the advances in digital technologies like Digital Signal Processors (DSPs), Field ...

Universidade de Lisboa, Instituto Superior Técnico2014

Effects of plasma shape on laser blow-off injected impurity transport in TCV

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H-mode grade confinement in L-mode edge plasmas at negative triangularity on DIII-D

Simulation of plasma turbulence in the periphery of diverted tokamaks

Turbulence simulations in diverted geometry

The effect of triangularity on fluctuations in a tokamak plasma

Dependence of the L-Mode scrape-off layer power fall-off length on the upper triangularity in TCV

Self-consistent interaction of fast particles and ICRF waves in 3D applications of fusion plasma devices

Effect of pool confinement on pressures around a block impacted by plunging aerated jets

Turbulence at the boundary of toroidal plasmas with open and closed magnetic flux surfaces

On the non-stiffness of edge transport in L-mode tokamak plasmas

Digital Control System for Vertical Stability of the TCV Plasma

Turbulence simulations in diverted geometry

Simulation of plasma turbulence in the periphery of diverted tokamaks

Self-consistent interaction of fast particles and ICRF waves in 3D applications of fusion plasma devices

H-mode grade confinement in L-mode edge plasmas at negative triangularity on DIII-D

Turbulence at the boundary of toroidal plasmas with open and closed magnetic flux surfaces

The effect of triangularity on fluctuations in a tokamak plasma

Dependence of the L-Mode scrape-off layer power fall-off length on the upper triangularity in TCV

On the non-stiffness of edge transport in L-mode tokamak plasmas

Effect of pool confinement on pressures around a block impacted by plunging aerated jets

Digital Control System for Vertical Stability of the TCV Plasma