Other
Scientific paper
Oct 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aipc..799..363t&link_type=abstract
NEW VISTAS IN DUSTY PLASMAS: Fourth International Conference on the Physics of Dusty Plasmas. AIP Conference Proceedings, Volum
Other
Dusty Plasmas, Plasma Nonlinear Waves, Plasma Diagnostics, Glow Discharges, Dusty Or Complex Plasmas, Plasma Crystals, Nonlinear Phenomena: Waves, Wave Propagation, And Other Interactions, Optical Measurements, Glow, Corona
Scientific paper
We present a review of experimental studies to excite nonlinear dust waves in a dc glow discharge plasma. The experiments were performed in a vertically positioned glass tube filled with neon and the stratified glow discharge with cold electrodes was created inside it. Dust particles were injected into a plasma and formed ordered structures in the striations. The dust grains were illuminated with a laser sheet and the scattered light was registered with a high-speed digital videocamera with the frame rate of 1000 fps and spatial resolution of 20 μm/pixel. We performed experiments with different techniques of the wave excitation. First, we used the gas-dynamic impact to move the dusty plasma structure with respect to their trap. In this case a large-amplitude wave with two compressional regions separated by a rarefaction was generated. The second wave excitation method was the application of an electromagnetic impulse to the dusty plasma structure. The impulse was created by the discharge of a high-voltage capacitor into a flat coil reeled around the discharge tube. The impulse of the axial magnetic field excited a perturbation. The perturbation had a character of discontinuity of the dust density and velocity. The perturbation was steepening and formed into a dust-acoustic shock. One more method of the wave excitation was developed that allowed to get two pulses. This gives us a possibility to investigate an interaction of waves excited in the dust component and a propagation of waves in a dusty plasma media with changeable dust density as well.
Fortov Vladimir E.
Khrapak A. G.
Molotkov Vladimir I.
Naumkin V. N.
Petrov Oleg F.
No associations
LandOfFree
Dust Waves Excited in a DC Glow Discharge Plasma 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 Dust Waves Excited in a DC Glow Discharge Plasma, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dust Waves Excited in a DC Glow Discharge Plasma will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1619478