[PDF] Top 20 Electron acceleration by Alfvén waves in density cavities

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... Alfv´en waves (AW) with a plasma inhomogeneous in a direction transverse to the static mag- netic ...the density cavities extended along the magnetic field in auro- ral ... Voir le document complet

... provided by intense low energy electron fluxes at 10
< l < 35
in the dawn/day ...the acceleration of less numerous higher energy electrons slightly closer to the equator could ... Voir le document complet

... a density increment that can reach up to 50%, as ob- served in density snapshots 共not shown ...the density profile of the plasma strongly evolves with ...and electron ... Voir le document complet

... vortices in the electron phase space projected along the magnetic field direction (x k , v k ...solitary waves [91] . The acceleration was associated to the deformation of the Aflvén wave ... Voir le document complet

... wakefield acceleration (PWFA) is a novel acceleration technique with promising prospects for both particle colliders and light ...using electron beams accelerated with a 100-TW-class Ti:sapphire ... Voir le document complet

... (grating) by an incident EM wave [1,2] of the same frequency is λ=λ g ¼ ð1 − αÞ 1=2 = ð2 − αÞ 1=2 − sinðϕ i Þ where λ g is the grating period and ϕ i is the angle of ...nonsteplike density profiles [21] as ... Voir le document complet

... particle acceleration via Landau resonance has been investigated in Appendix B for waves propagating near the Gendrin angle (representative of most of the large wave normal angle range, except for ... Voir le document complet

... of electron acceleration in auroral regions, we present a study of the temporal evolu- tion of the interaction of Alfv´en waves (AW) with a plasma inhomogeneous in a direction ... Voir le document complet

... EN WAVES AS PRECURSORS OF QUASI-STATIC ACCELERATION PROCESSES IN THE EARTH AURORAL ZONE ...Abstract. In the Earth auroral zone, the electron acceleration by Alfv´ en ... Voir le document complet

... resonances in phase space is usually much larger than their widths (see ...plasma density due to parti- cle injections into the inner magnetosphere can substantially increase resonance ...for waves ... Voir le document complet

... the cavities with a spatial resolution of the order of 130 nm ¼ ...predictions in terms of the mode symmetry and the ratio between the imaginary and real parts of the inverse mode volumes ( ...encoded ... Voir le document complet

... Recent work by Kupfer [1,2] on the chaotic electron dynamics induced by waves demonstrated that in the presence of four waves wherein two are of identical paralle[r] ... Voir le document complet

... mm) in order to reduce imaging ...stated in [29] and corroborated in ...verified by experiment within our range of interest (see next two ...experiment in the remainder of this section ... Voir le document complet

... electronic density accompanied by a periodic distortion of the crystal ...either by a nesting vector of the Fermi surface inducing a peak in electronic susceptibility [ 10 ], or by a ... Voir le document complet

... atoms in the (a,b) plane, but also the vibrations along the c axis of a couple of S atoms situated just above and below the plane of Nb ...hampered by the great elastic cost of moving apart the S atoms, ... Voir le document complet

... Work by Fife [22] as well as Boeuf and colleagues using hybrid-PIC models successfully demonstrated the presence of the thruster breathing mode [8, 5], as well as other oscillations of higher frequency ...plasma ... Voir le document complet

... ion density, and the ion bulk velocity in the time domain measured by Clus- ter 3 from 04:00 to 10:00 UT on 18 February ...foreshock waves in this event exhibit the clearest example ... Voir le document complet

... are in good agreement with the experiment for fields below 70 ...difference in current density between the irradiated and the non-irradiated sample could be ...slope in current density, ... Voir le document complet

... plasma density taken in the simulation), where k D ¼ v th =x pe is the Debye length and the number of particles per cell was NP ¼ ...is in the (x,y) simulation ...characterized by a temporal ... Voir le document complet