Publication
Effect of the tangential NBI current drive on the stability of pressure and energetic particle driven MHD modes in LHD plasma
Publications associées (43)
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The work describes the pedestal structure, transport and stability in an effective mass (Aeff) scan from pure deuterium to pure tritium plasmas using a type I ELMy H-mode dataset in which key parameters that affect the pedestal behaviour (normalized pressu ...
2023Excitation of toroidal Alfvén eigenmodes with counter-current NBI in the TCV tokamak
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In TCV, unstable modes excited by resonant interaction between the shear Alfvèn waves in con- tinuum gaps and energetic particles have been observed in scenarios with Neutral Beam Injection (NBI). TCV is a middle-size device (R 0 /a = 0.88/0.25) equipped w ...
2023Equilibrium pressure limits in stellarators
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Flux-tube (local) gyrokinetic codes are widely used to simulate drift-wave turbulence in magnetic confinement devices. While a large number of studies show that flux-tube codes provide an excellent approximation for turbulent transport in medium-large devi ...
IOP Publishing Ltd2023Predictive modeling of Alfvén eigenmode stability in inductive scenarios in JT-60SA
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The JT-60SA device offers unique conditions before ITER for the study of the interaction of energetic particles with plasma waves. With similar dimensions to JET, e.g., a major radius but with a slightly more elongated plasma volume, JT-60SA is used as a h ...
Lausanne2023Nonlinear interaction of Alfvénic instabilities and turbulence via the modification of the equilibrium profiles
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Nonlinear simulations of Alfvén modes (AMs) driven by energetic particles (EPs) in the presence of turbulence are performed with the gyrokinetic particle-in-cell code ORB5. The AMs carry a heat flux, and consequently they nonlinearly modify the plasma temp ...
2023Pedestal structure, stability and scalings in JET-ILW: the EUROfusion JET-ILW pedestal database
The EUROfusion JET-ILW pedestal database is described, with emphasis on three main issues. First, the technical aspects are introduced, including a description of the data selection, the datasets, the diagnostics used, the experimental and theoretical meth ...
2020MHD Stability and Energy Principle for Two-Dimensional Equilibria without Assumption of Nested Magnetic Surfaces
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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 INC2019Projective multiscale time-integration for electrostatic particle-in-cell methods
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The simulation of problems in kinetic plasma physics is often challenging due to strongly coupled phenomena across multiple scales. In this work, we propose a wavelet-based coarse-grained numerical scheme, based on the framework of Equation-Free Projective ...
2019Poloidal CX visible light plasma rotation diagnostics in TCV
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EPFL2017