During the recovery phase of a magnetic storm, fluxes of relativistic (> 1 MeV) electrons in the inner magnetosphere (3 ≤ L ≤ 6) increase to beyond pre-storm levels, reaching a peak about 4 days after the initiation of the storm. In order to account for the generation of these “killer electrons”, a model is presented primarily based on stochastic acceleration of electrons by enhanced whistler-m...

The inductively coupled RF discharge is known to exhibit two modes of operation depending on the level of incident power. Dominant capacitive coupling (E-mode discharge) occurs at low-power level while at high power, dominant inductive coupling (H-mode discharge) is obtained. In this work, we investigate the characteristics of the E-mode and H-mode discharges generated in a planar coil inductiv...

Gyrokinetic δf particle simulation is used to investigate the nonlinear saturation mechanisms in collisionless trapped electron mode (CTEM) turbulence. It is found that the importance of zonal flow is parameter sensitive and is well characterized by the shearing rate formula. The effect of zonal flow is empirically found to be sensitive to temperature ratio, magnetic shear and electron temperat...

Numerical investigations of a warm-fluid model with an isothermal equation of state for the perpendicular dynamics of an axisymmetric, magnetically confined pure electron plasma predict an exponentially unstable, I= 1, diocotron mode for hollow density profiles. , The unstable mode can be identified with a stable, nonsmooth mode that exists in cold drift models but which is destabilized-by fini...

The introduction of a strongly magnetized plasma in the inner region of a Free Electron Laser opens up the possibility of generating coherent radiation in the slow whistler mode using mildly relativistic electron beams. The frequency of emission, however, is limited to below the electron cyclotron frequency. The efficiency of the device can be enhanced by tapering the guide magnetic field.

Upon increasing the electron density in a quantum wire, the one-dimensional electron system undergoes a transition to a quasi-one-dimensional state. In the absence of interactions between electrons, this corresponds to filling up the second subband of transverse quantization, and there are two gapless excitation modes above the transition. On the other hand, strongly interacting one-dimensional...