Results 21 to 30 of about 2,094,383 (285)
AKR breakup and auroral particle acceleration at substorm onset [PDF]
, 2008 The dynamical behavior of auroral kilometric radiation (AKR) is investigated in connection with auroral particle acceleration at substorm onsets using high-time-resolution wave spectrograms provided by Polar/PWI electric field observations.
Morioka, A. +10 more
core +4 more sources
Electron acceleration by Langmuir turbulence in ionospheric heating
Earth and Planetary Physics, 2022 In this study, we investigate the generation of parametric decay instability, Langmuir turbulence formation, and electron acceleration in ionospheric heating via a two-fluid model using the Fokker–Planck equation and Vlasov–Poisson system simulations ...
MoRan Liu, Chen Zhou, Ting Feng
doaj +1 more source
Electron Rolling‐Pin Distributions Preceding Dipolarization Fronts
Geophysical Research Letters, 2023 Electron rolling‐pin distribution (RPDs), characterized by triple peaks at pitch angles 0°, 90°, and 180°, have recently been discovered in the terrestrial magnetosphere.
X. N. Xing, C. M. Liu, J. B. Cao
doaj +1 more source
Electron bunch evolution in laser-wakefield acceleration
Physical Review Accelerators and Beams, 2020 We report on systematic and high-precision measurements of the evolution of electron beams in a laser-wakefield accelerator (LWFA). Utilizing shock-front injection, a technique providing stable, tunable and high-quality electron bunches, acceleration and
D. E. Cardenas +11 more
doaj +1 more source
2.3 J, 25 Hz Nd:YAG/sapphire composite powerchip amplifier operating at room temperature [PDF]
EPJ Web of ConferencesWe demonstrate a sub-nanosecond Joule-class room-temperature diode-pumped solid-state chip laser comprising of periodically bonded Nd:YAG and sapphire crystal plates and operating at 25 Hz, delivering the peak power over 3 GW.
Kausas Arvydas +4 more
doaj +1 more source
Additional acceleration of solar-wind particles in current sheets of the heliosphere [PDF]
, 2015 Particles of fast solar wind in the vicinity of the heliospheric current sheet (HCS) or in a front of interplanetary coronal mass ejections (ICMEs) often reveal very peculiar energy or velocity profiles, density distributions with double or triple peaks,
V. Zharkova +4 more
core +2 more sources
Surface plasmon-driven electron and proton acceleration without grating coupling
New Journal of Physics, 2022 Surface plasmon (SP) excitation in intense laser interaction with solid target can be exploited for enhancing secondary emissions, in particular efficient acceleration of high charge electron bunches. Previous studies have mostly used grating coupling to
J Sarma +4 more
doaj +1 more source
Electron acceleration in solar flares [PDF]
Solar Physics, 1989 AbstractFor the period September 1978 to December 1982 we have identified 55 solar flare particle events for which our instruments on board the ISEE-3 (ICE) spacecraft detected electrons above 10 MeV. Combining our data with those from the ULEWAT spectrometer (MPI Garching and University of Maryland) electron spectra in the range from 0.1 to 100 MeV ...
Wolfgang Dröge +3 more
openaire +1 more source
Study on the electron acceleration in the interaction of two relativistic laser beams with under-dense plasma [PDF]
مجله علوم و فنون هستهای, 2022 This paper applied two intense relativistic beams to low-density plasma under different conditions. The effect of the distance and the angle between these two beams on the acceleration of electrons were investigated.
S.A. Ghasemi +2 more
doaj +1 more source
Electron acceleration above thunderclouds
Environmental Research Letters, 2013 The acceleration of electrons results in observable electromagnetic waves which can be used for remote sensing. Here, we make use of ∼4 Hz–66 MHz radio waves emitted by two consecutive intense positive lightning discharges to investigate their impact on ...
Martin Füllekrug +18 more
doaj +1 more source