Geodesic acoustic modes in magnetic confinement devices
GD Conway, AI Smolyakov, T Ido - Nuclear Fusion, 2021 - iopscience.iop.org
Geodesic acoustic modes (GAMs) are ubiquitous oscillatory flow phenomena observed in
toroidal magnetic confinement fusion plasmas, such as tokamaks and stellarators. They are …
toroidal magnetic confinement fusion plasmas, such as tokamaks and stellarators. They are …
The features of the global GAM in OH and ECRH plasmas in the T-10 tokamak
AV Melnikov, LG Eliseev, SV Perfilov… - Nuclear …, 2015 - iopscience.iop.org
Zonal flows and their high-frequency counterpart, the geodesic acoustic modes (GAMs) are
considered as a possible mechanism of the plasma turbulence self-regulation. In the T-10 …
considered as a possible mechanism of the plasma turbulence self-regulation. In the T-10 …
Geodesic oscillations and the weakly coherent mode in the I-mode of ASDEX Upgrade
Density fluctuations in I-mode discharges in ASDEX Upgrade are studied. The I-mode
specific weakly coherent mode (WCM) appears at the transition from the L to I-mode. The …
specific weakly coherent mode (WCM) appears at the transition from the L to I-mode. The …
Study of interactions between GAMs and broadband turbulence in the T-10 tokamak
AV Melnikov, LG Eliseev, SE Lysenko… - Nuclear …, 2017 - iopscience.iop.org
New findings in study of geodesic acoustic modes (GAMs) on the T-10 tokamak since the
last IAEA FEC 2014 are described. The broadband fluctuations of potential φ and electron …
last IAEA FEC 2014 are described. The broadband fluctuations of potential φ and electron …
Electromagnetic characteristics of geodesic acoustic mode in the COMPASS tokamak
Axisymmetric geodesic acoustic mode (GAM) oscillations of the magnetic field, plasma
potential and electron temperature have been identified on the COMPASS tokamak. This …
potential and electron temperature have been identified on the COMPASS tokamak. This …
Study of Geodesic Acoustic and Alfvén Modes in Toroidal Fusion Devices (Brief Review)
AV Melnikov, VA Vershkov, SA Grashin, MA Drabinskiy… - JETP Letters, 2022 - Springer
Geodesic acoustic modes, Alfvén eigenmodes, stationary and oscillating components of the
electric field, and their relations to plasma confinement have been studied. Theoretical …
electric field, and their relations to plasma confinement have been studied. Theoretical …
The science program of the TCV tokamak: exploring fusion reactor and power plant concepts
S Coda, TCV team - Nuclear Fusion, 2015 - iopscience.iop.org
TCV is acquiring a new 1 MW neutral beam and 2 MW additional third-harmonic electron
cyclotron resonance heating (ECRH) to expand its operational range. Its existing shaping …
cyclotron resonance heating (ECRH) to expand its operational range. Its existing shaping …
[HTML][HTML] Experimental observation of the geodesic acoustic frequency limit for the NBI-driven Alfvén eigenmodes in TJ-II
LG Eliseev, AV Melnikov, E Ascasibar, A Cappa… - Physics of …, 2021 - pubs.aip.org
We study Alfvén eigenmodes (AEs) in the TJ-II heliac in hydrogen plasmas heated by
hydrogen co-field neutral beam injector. Taking advantage of the unique TJ-II flexibility in a …
hydrogen co-field neutral beam injector. Taking advantage of the unique TJ-II flexibility in a …
An arbitrary wavelength solver for global gyrokinetic simulations. Application to the study of fine radial structures on microturbulence due to non-adiabatic passing …
The influence of the fine layers of the non-adiabatic passing electron response on
electrostatic turbulent transport, previously studied systematically in flux tube geometry …
electrostatic turbulent transport, previously studied systematically in flux tube geometry …
Shaping effects on the geodesic acoustic mode in tokamaks
The geodesic acoustic mode (GAM) is investigated with gyro-kinetic equations in Miller local
equilibrium model for shaped tokamak plasmas with an arbitrary elongation κ and a finite …
equilibrium model for shaped tokamak plasmas with an arbitrary elongation κ and a finite …