26 citations · 61 across the 16 of their papers we have counts for
17 papers
Study of Low-Frequency Core-Edge Coupling in a Tokamak: II. Spatial Channeling & Focusing In Antenna-Driven MHD
Andreas Bierwage, Wonjun Lee, Young-chul Ghim +7
Motivated by evidence for core-edge coupling in the form of double-peaked fishbone-like low-frequency modes () in KSTAR, which exhibit synchronized Alfvénic…
Frequency Chirping of Energetic-Particle-Driven Geodesic Acoustic Modes in Tokamaks
R. Wu, A. Biancalani, M. V. Falessi +5
A suprathermal population of ions is present in tokamak plasmas due to external heating mechanisms and fusion reactions. These energetic particles (EPs) can drive waves unstable, v…
Analysis of non-diffusive avalanche transport of energetic particles
Nakia Carlevaro, Matteo V. Falessi, Giovanni Montani +1
The dynamics of energetic particles (EPs) interacting with Alfvén eigenmodes (AEs) for the ITER 15MA baseline scenario was described using a reduced 1D model in [Carlevaro et al. P…
Calculation of toroidal Alfvén eigenmode mode structure in general axisymmetric toroidal geometry
Guangyu Wei, Matteo Valerio Falessi, Tao Wang +2
A workflow is developed based on the ideal MHD model to investigate the linear physics of various Alfvén eigenmodes in general axisymmetric toroidal geometry, by solving the couple…
Saturation of fishbone instability through zonal flows driven by energetic particle transport in tokamak plasmas
G. Brochard, C. Liu, X. Wei +17
Gyrokinetic and kinetic-MHD simulations are performed for the fishbone instability in the DIII-D discharge #178631, chosen for validation of first-principles simulations to predict…
Nonlinear interaction of Alfvénic instabilities and turbulence via the modification of the equilibrium profiles
A. Biancalani, A. Bottino, D. Del Sarto +10
Nonlinear simulations of Alfvén modes (AM) driven by energetic particles (EP) in the presence of turbulence are performed with the gyrokinetic particle-in-cell code ORB5. The AMs c…
Nonlinear equilibria and transport processes in burning plasmas
Matteo Valerio Falessi, Liu Chen, Zhiyong Qiu +1
In this work, we put forward a general phase-space transport theory in axisymmetric tokamak plasmas based upon the concept of zonal state (ZS). Within this theoretical framework, t…
Energetic particle transport: diffusion vs convection and phase-space barriers
Nakia Carlevaro, Giovanni Montani, Matteo Valerio Falessi +1
Energetic particle redistribution in the presence of multiple Alfvén eigenmodes is analyzed in [PPCF 58, 014019 (2016)] for the ITER 15MA baseline scenario: non-linear hybrid simul…
Analysis of the nonlinear dynamics of a chirping-frequency Alfvén mode in a Tokamak equilibrium
Xin Wang, Sergio Briguglio, Claudio Di Troia +5
Chirping Alfvén modes are considered as potentially harmful in burning Tokamak plasmas. In this paper, the nonlinear evolution of a single-toroidal-number chirping mode is analysed…
Evidence of "Two Plasmon" decay of energetic particle induced geodesic acoustic mode
Zhiyong Qiu, Liu Chen, Fulvio Zonca +1
Secondary low frequency mode generation by energetic particle induced geodesic acoustic mode (EGAM) observed in LHD experiment is studied using nonlinear gyrokinetic theory. It is…
Resonance overlap and non-linear features of the beam-plasma system
Nakia Carlevaro, Giovanni Montani, Matteo Valerio Falessi
The beam-plasma instability can be addressed as a reduced model in several contexts of plasma physics, from space to fusion plasma. In this paper, we review and refine some non-lin…
On the polarization of shear Alfvén and acoustic continuous spectra in toroidal plasmas
M. V. Falessi, N. Carlevaro, V. Fusco +4
In this work, the FALCON code is adopted for illustrating the features of shear Alfvén and continuous spectra in toroidal fusion plasmas. The FALCON codes employs the local Floquet…
Shear Alfvén and acoustic continuum in general axisymmetric toroidal geometry
Matteo Valerio Falessi, Nakia Carlevaro, Valeria Fusco +2
The equations describing the continuous spectrum of shear Alfvén and ion sound waves propagating along magnetic field lines are introduced and solved in the ballooning space for ge…
Gyrokinetic theory for particle transport in fusion plasmas
Matteo Valerio Falessi, Fulvio Zonca
A set of equations is derived describing the macroscopic transport of particles and energy in a thermonuclear plasma on the energy confinement time. The equations thus derived allo…
Gyrokinetic theory for particle transport in fusion plasmas
Matteo Valerio Falessi
Predicting the dynamics of a thermonuclear plasma during a magnetic confinement experiment is fundamental in order to make nuclear fusion a reliable source of energy. The developme…
Mixed diffusive-convective relaxation of a broad beam of energetic particles in cold plasma
Nakia Carlevaro, Alexander V. Milovanov, Matteo V. Falessi +3
We revisit the applications of quasi-linear theory as a paradigmatic model for weak plasma turbulence and the associated bump-on-tail problem. The work, presented here, is built ar…
Nonlinear physics and energetic particle transport features of the beam-plasma instability
Nakia Carlevaro, Matteo V. Falessi, Giovanni Montani +1
In this paper, we study transport features of a one-dimensional beam-plasma system in the presence of multiple resonances. As a model description of the general problem of a warm e…