Electron acoustic waves in pure ion plasmas
F Anderegg, CF Driscoll, DHE Dubin, TM O'Neil… - Physics of …, 2009 - pubs.aip.org
Standing electron acoustic waves (EAWs) are observed in a pure ion plasma. EAWs are
slow nonlinear plasma waves; at small amplitude their phase velocities ( v ph≃ 1.4 v for …
slow nonlinear plasma waves; at small amplitude their phase velocities ( v ph≃ 1.4 v for …
Long range frequency chirping of Alfvén eigenmodes
A theoretical framework has been developed for an NBI scenario to model the hard non-
linear evolution of global Alfvén eigenmodes (GAEs) where the adiabatic motion of phase …
linear evolution of global Alfvén eigenmodes (GAEs) where the adiabatic motion of phase …
Modeling of long range frequency sweeping for energetic particle modes
RM Nyqvist, BN Breizman - Physics of Plasmas, 2013 - pubs.aip.org
Long range frequency sweeping events are simulated numerically within a one-
dimensional, electrostatic bump-on-tail model with fast particle sources and collisions. The …
dimensional, electrostatic bump-on-tail model with fast particle sources and collisions. The …
Impact of energetic particle orbits on long range frequency chirping of BGK modes
Long range frequency chirping of Bernstein–Greene–Kruskal modes, whose existence is
determined by the fast particles, is investigated in cases where these particles do not move …
determined by the fast particles, is investigated in cases where these particles do not move …
Chirp-driven giant phase space vortices
P Trivedi, R Ganesh - Physics of Plasmas, 2016 - pubs.aip.org
In a collisionless, unbounded, one-dimensional plasma, modelled using periodic boundary
conditions, formation of steady state phase space coherent structures or phase space …
conditions, formation of steady state phase space coherent structures or phase space …
Effects of collisions on energetic particle-driven chirping bursts
M Lesur - Physics of Plasmas, 2013 - pubs.aip.org
In the presence of an energetic particle population in a dissipative plasma, self-trapped
structures in phase-space (holes and clumps) emerge from nonlinear wave-particle …
structures in phase-space (holes and clumps) emerge from nonlinear wave-particle …
Theoretical interpretation of frequency sweeping observations in the Mega-Amp Spherical Tokamak
RGL Vann, RO Dendy, MP Gryaznevich - Physics of plasmas, 2005 - pubs.aip.org
Frequency sweeping (chirping) of high frequency magnetohydrodynamic modes is widely
observed in tokamak plasmas. In this paper observations of chirping in neutral-beam-heated …
observed in tokamak plasmas. In this paper observations of chirping in neutral-beam-heated …
Driven phase space vortices in plasmas with nonextensive velocity distribution
P Trivedi, R Ganesh - Physics of Plasmas, 2017 - pubs.aip.org
The evolution of chirp-driven electrostatic waves in unmagnetized plasmas is numerically
investigated by using a one-dimensional (1D) Vlasov-poisson solver with periodic boundary …
investigated by using a one-dimensional (1D) Vlasov-poisson solver with periodic boundary …
Suppression of nonlinear frequency-sweeping of resonant interchange modes in a magnetic dipole with applied radio frequency fields
D Maslovsky, B Levitt, ME Mauel - Physics of Plasmas, 2003 - pubs.aip.org
Interchange instabilities excited by energetic electrons trapped by a magnetic dipole
nonlinearly saturate and exhibit complex, coherent spectral characteristics and frequency …
nonlinearly saturate and exhibit complex, coherent spectral characteristics and frequency …
Theoretical description of chirping waves using phase-space waterbags
The guiding centre dynamics of fast particles can alter the behaviour of energetic particle
(EP) driven modes with chirping frequencies. In this paper, the applicability of an earlier …
(EP) driven modes with chirping frequencies. In this paper, the applicability of an earlier …