Physics – Plasma Physics
Scientific paper
2009-06-10
Physics
Plasma Physics
4 pages, 5 figures, accepted for publication in Physics of Plasmas
Scientific paper
Two counter-propagating cool and equally dense electron beams are modelled with particle-in-cell (PIC) simulations. The electron beam filamentation instability is examined in one spatial dimension, which is an approximation for a quasi-planar filament boundary. It is confirmed, that the force on the electrons imposed by the electrostatic field, which develops during the nonlinear stage of the instability, oscillates around a mean value that equals the magnetic pressure gradient force. The forces acting on the electrons due to the electrostatic and the magnetic field have a similar strength. The electrostatic field reduces the confining force close to the stable equilibrium of each filament and increases it farther away, limiting the peak density. The confining time-averaged total potential permits an overlap of current filaments with an opposite flow direction.
Borghesi Marco
Dieckmann Mark Eric
Kourakis Ioannis
Rowlands George
No associations
LandOfFree
One-dimensional particle simulation of the filamentation instability: electrostatic field driven by the magnetic pressure gradient force does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with One-dimensional particle simulation of the filamentation instability: electrostatic field driven by the magnetic pressure gradient force, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and One-dimensional particle simulation of the filamentation instability: electrostatic field driven by the magnetic pressure gradient force will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-206708