Elongated Dusty Structures in a Glow Discharge Plasma

An extended 3-D dusty structure was found in dc glow discharge plasma under conditions where gravity is important. The plasma-dust structure fills the whole length of a stratified positive column. In fact, the structure extends far beyond the limits of a plasma trap. The dusty plasma formation occup...

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Bibliographic Details
Published in:IEEE transactions on plasma science 2011-11, Vol.39 (11), p.2744-2745
Main Authors: Podryadchikov, S. F., Khakhaev, A. D.
Format: Article
Language:English
Subjects:
Direct current
Discharge tube
Discharges
Dust
Dusty plasma
Dusty plasmas
Electric currents
Electron tubes
Electrostatic discharges
Elongated structure
glow discharge
Glow discharges
Gravitation
Laser beams
Luminescence
Plasma physics
Positive columns
Powders
Three dimensional
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Summary:An extended 3-D dusty structure was found in dc glow discharge plasma under conditions where gravity is important. The plasma-dust structure fills the whole length of a stratified positive column. In fact, the structure extends far beyond the limits of a plasma trap. The dusty plasma formation occupies the whole volume of luminescence of a positive column and consists of more than 6.5 million macroparticles. The diameter and length of the cylindrical dusty structure are 20 mm and 120 mm.
ISSN:0093-3813
1939-9375
DOI:10.1109/TPS.2011.2162636