Publications related to On the relationship between the multi-region relaxed variational principle and resistive inner-layer theory

Nonlinear saturation of resistive tearing modes in a cylindrical tokamak with and without solving the dynamics

We show that the saturation of resistive tearing modes in a cylindrical tokamak, as well as the corresponding island width, can be directly calculated with a magnetohydrodynamics (MHD) equilibrium code without solving the dynamics and without considering r ...

2023

MHD Stability and Energy Principle for Two-Dimensional Equilibria without Assumption of Nested Magnetic Surfaces

Laurent Villard, Andrei Martynov

Abandoning the assumption of nested magnetic surfaces in tokamak plasma expands the field of research and opens up new approaches for both theoretical and experimental plasma physics. The computer code KINX for calculations of the ideal MHD stability was d ...

PLEIADES PUBLISHING INC2019

On the triggerless onset of 2/1 neoclassical tearing modes in TCV

Olivier Sauter, Federico Alberto Alfredo Felici, Antoine Pierre Emmanuel Alexis Merle, Mengdi Kong

Triggerless

2/1

neoclassical tearing modes (NTMs), i.e.

2/1

NTMs that originate from unstable safety factor profiles (with positive classical stability index at zero island width, i.e.

\Delta'_0>0

) and saturate neoclassically under the effect of pert ...

IOP2019

Realistic multi-machine tokamak profile simulations and numerical ramp-down optimization using the RAPTOR code

Anna Teplukhina

Predictive modelling of plasma profiles is an essential part of ongoing research in tokamak plasmas, required for a successful realization of future fusion reactors. This thesis focuses on upgrading the RAPTOR code to extend the area of its applicability f ...

EPFL2018

Analytic stability criteria for edge MHD oscillations in high performance ELM free tokamak regimes

Jonathan Graves, Wilfred Anthony Cooper, Daniele Brunetti, Alberto Mariani

A new dispersion relation, and associated stability criteria, is derived for low-n external kink and infernal modes, and is applied to modelling the stability properties of quiescent H-mode like regimes. The analysis, performed in toroidal geometry with la ...

IAEA2018

Poloidal CX visible light plasma rotation diagnostics in TCV

Claudio Marini

Controlled thermonuclear fusion is the main goal of plasma physics. At the Swiss Plasma Center, the Tokamak `a Configuration Variable (TCV) constitutes the main experiment on fusion research, where high temperature plasmas are confined by means of magneti ...

EPFL2017

Profile control simulations and experiments on TCV: a controller test environment and results using a model-based predictive controller

Olivier Sauter, Timothy Goodman, Jean-Marc Moret, Federico Alberto Alfredo Felici, Antoine Pierre Emmanuel Alexis Merle, Cristian Galperti, Mengdi Kong, Francesco Carpanese, Sun Hee Kim, Doohyun Kim, Anna Teplukhina, Donghyun Kim

The successful performance of a model predictive profile controller is demonstrated in simulations and experiments on the TCV tokamak, employing a profile controller test environment. Stable high-performance tokamak operation in hybrid and advanced plasma ...

2017

20 years of research on the Alcator C-Mod tokamak

Basil Duval, Christian Gabriel Theiler, Yu Lin

The object of this review is to summarize the achievements of research on the Alcator C-Mod tokamak [Hutchinson et al., Phys. Plasmas 1, 1511 (1994) and Marmar, Fusion Sci. Technol. 51, 261 (2007)] and to place that research in the context of the quest for ...

Amer Inst Physics2014

Theory of the scrape-off layer width in inner-wall limited tokamak plasmas

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

We develop a predictive theory applicable to the scrape-off layer (SOL) of inner-wall limited plasmas. Using the non-linear flattening of the pressure profile as a saturation mechanism for resistive ballooning modes, we are able to demonstrate and quantify ...

International Atomic Energy Agency2014

Comparisons of linear and nonlinear plasma response models for non-axisymmetric perturbations

Wilfred Anthony Cooper

With the installation of non-axisymmetric coil systems on major tokamaks for the purpose of studying the prospects of ELM-free operation, understanding the plasma response to the applied fields is a crucial issue. Application of different response models, ...

American Institute of Physics2013

On the relationship between the multi-region relaxed variational principle and resistive inner-layer theory

Graph Chatbot

Chat with Graph Search

Nonlinear saturation of resistive tearing modes in a cylindrical tokamak with and without solving the dynamics

MHD Stability and Energy Principle for Two-Dimensional Equilibria without Assumption of Nested Magnetic Surfaces

On the triggerless onset of 2/1 neoclassical tearing modes in TCV

Realistic multi-machine tokamak profile simulations and numerical ramp-down optimization using the RAPTOR code

Analytic stability criteria for edge MHD oscillations in high performance ELM free tokamak regimes

Poloidal CX visible light plasma rotation diagnostics in TCV

Profile control simulations and experiments on TCV: a controller test environment and results using a model-based predictive controller

20 years of research on the Alcator C-Mod tokamak

Theory of the scrape-off layer width in inner-wall limited tokamak plasmas

Comparisons of linear and nonlinear plasma response models for non-axisymmetric perturbations

Poloidal CX visible light plasma rotation diagnostics in TCV

MHD Stability and Energy Principle for Two-Dimensional Equilibria without Assumption of Nested Magnetic Surfaces

Realistic multi-machine tokamak profile simulations and numerical ramp-down optimization using the RAPTOR code

Nonlinear saturation of resistive tearing modes in a cylindrical tokamak with and without solving the dynamics

Analytic stability criteria for edge MHD oscillations in high performance ELM free tokamak regimes

On the triggerless onset of 2/1 neoclassical tearing modes in TCV

20 years of research on the Alcator C-Mod tokamak

Comparisons of linear and nonlinear plasma response models for non-axisymmetric perturbations

Theory of the scrape-off layer width in inner-wall limited tokamak plasmas

Profile control simulations and experiments on TCV: a controller test environment and results using a model-based predictive controller