Publications associées à Fréquence plasma

Global two-fluid simulations of tokamak Scape-Off-Layer turbulence

Paolo Ricci, Sébastien Jolliet, Federico David Halpern, Annamaria Mosetto

We present non-linear self-consistent 3D global fluid simulations of the SOL plasma dynamics using the Global Braginskii Solver (GBS) code. The code solves the drift-reduced Braginkii equations in a collisional plasma, with cold ions. The GBS code, origina ...

2012

Plasmon evolution and charge-density wave suppression in potassium intercalated 2H-TaSe2

Helmuth Berger

We have investigated the influence of potassium intercalation on the formation of the charge-density wave (CDW) instability in 2H-TaSe2 by means of electron energy-loss spectroscopy and density functional theory. Our observations are consistent with a fill ...

Epl Association, European Physical Society2012

Global scrape-off layer electromagnetic fluid turbulence simulations

Paolo Ricci, Joaquim Loizu Cisquella, Sébastien Jolliet, Federico David Halpern, Annamaria Mosetto

Electromagnetic effects play a key role in tokamak edge turbulence. It has been suggested that the density limit and the L to H mode transition may both be due to an interplay between electromagnetic effects, diamagnetic flows and collisionality. (See, e.g ...

2012

Global two-fluid simulations of tokamak SOL turbulence

Paolo Ricci, Federico David Halpern, Annamaria Mosetto

We present non-linear self-consistent global simulations of the SOL plasma dynamics using the Global Braginskii Solver (GBS) code. The code solves on the drift-reduced Braginkii equations, with cold ions. Studied originally for the simulation of the Simple ...

2011

Boundary conditions for plasma fluid models at the magnetic presheath entrance

Paolo Ricci, Christian Gabriel Theiler, Joaquim Loizu Cisquella

For the first time, a rigorous definition of the magnetic presheath entrance (MPSE) is provided, as the location where the drift-reduced approximation breaks down. We consider a weakly collisional electrostatic plasma with cold ions in contact with an abso ...

2011

A scoping study of the application of neutral beam heating on the TCV tokamak

Olivier Sauter, Basil Duval, René Chavan, Alexander Karpushov, Henri Weisen, Emiliano Fable

The TCV tokamak contributes to the physics understanding of fusion plasmas, broadening the parameter range of reactor relevant regimes, by investigations based on an extensive use of the existing main experimental tools: flexible shaping and high power rea ...

Elsevier B.V.2011

Overview of the ITER EC H&CD system and its capabilities

Olivier Sauter, Timothy Goodman, Stefano Alberti, Minh Quang Tran, Jean-Philippe Hogge, René Chavan, Laurie Porte, Jean-Daniel Landis, Francisco Sanchez, Ioannis Pagonakis, Robert Bertizzolo, Hartmut Zohm, Emanuele Poli

The Electron Cyclotron (EC) system for the ITER tokamak is designed to inject >= 20 MW RF power into the plasma for Heating and Current Drive (H&CD) applications. The EC system consists of up to 26 gyrotrons (between 1 and 2 MW each), the associated power ...

Elsevier2011

Recent Advances in Sawtooth Control

Olivier Sauter, Stefano Coda, Jonathan Graves, James Paley

Important advances have been made recently in the invention and application of experimental methods to control the sawtooth instability in tokamak plasmas. The primary means of control involves the application of either ion cyclotron resonance heating (ICR ...

American Nuclear Society2011

Overview of physics results from NSTX

Holger Reimerdes, Mario Ludovico Podesta, Alessandro Bortolon, Anton Smirnov, Gang Yu, Maike Jaworski, Ji Hyun Kim, Bo Hu

In the last two experimental campaigns, the low aspect ratio NSTX has explored physics issues critical to both toroidal confinement physics and ITER. Experiments have made extensive use of lithium coatings for wall conditioning, correction of non-axisymmet ...

2011

Chattez avec Graph Search

Posez n’importe quelle question sur les cours, conférences, exercices, recherches, actualités, etc. de l’EPFL ou essayez les exemples de questions ci-dessous.

AVERTISSEMENT : Le chatbot Graph n'est pas programmé pour fournir des réponses explicites ou catégoriques à vos questions. Il transforme plutôt vos questions en demandes API qui sont distribuées aux différents services informatiques officiellement administrés par l'EPFL. Son but est uniquement de collecter et de recommander des références pertinentes à des contenus que vous pouvez explorer pour vous aider à répondre à vos questions.

Fréquence plasma

Global two-fluid simulations of tokamak Scape-Off-Layer turbulence

Plasmon evolution and charge-density wave suppression in potassium intercalated 2H-TaSe2

Global scrape-off layer electromagnetic fluid turbulence simulations

Global two-fluid simulations of tokamak SOL turbulence

Boundary conditions for plasma fluid models at the magnetic presheath entrance

A scoping study of the application of neutral beam heating on the TCV tokamak

Overview of the ITER EC H&CD system and its capabilities

Recent Advances in Sawtooth Control

Response of a resistive and rotating tokamak to external magnetic perturbations below the Alfvén frequency

Overview of physics results from NSTX

Graph Chatbot

Chattez avec Graph Search

Global two-fluid simulations of tokamak SOL turbulence

Plasmon evolution and charge-density wave suppression in potassium intercalated 2H-TaSe2

Boundary conditions for plasma fluid models at the magnetic presheath entrance

Global scrape-off layer electromagnetic fluid turbulence simulations

Recent Advances in Sawtooth Control

Global two-fluid simulations of tokamak Scape-Off-Layer turbulence

Response of a resistive and rotating tokamak to external magnetic perturbations below the Alfvén frequency

A scoping study of the application of neutral beam heating on the TCV tokamak

Overview of physics results from NSTX

Overview of the ITER EC H&CD system and its capabilities