Title :
Dusty Structures in a Spherical Stratified Glow Discharge
Author :
Scherbina, Alexander I. ; Burdyukh, Sergey V.
Author_Institution :
Dept. of Inf. Meas. Syst. & Phys. Electron., Petrozavodsk State Univ., Petrozavodsk, Russia
Abstract :
Glow discharge of a spherical geometry is used to produce and investigate dusty plasma structures. Production of dust in air plasma spontaneously occurs due to sputtering of cathode, and structures arise around an anode, but the structures of injected grains with short lifetime were observed in high molecular gases such as acetone and ethyl alcohol. Experiments were carried out in the gas pressure range of 30-100 Pa and discharge current range of 20-30 mA. To control the chemical composition of gas environment, mass spectrometry was used.
Keywords :
air; dusty plasmas; glow discharges; organic compounds; plasma diagnostics; plasma pressure; plasma transport processes; acetone; air plasma; current 20 mA to 30 mA; discharge current analysis; dusty plasma structure; ethyl alcohol; gas environment chemical composition; gas pressure; injected grain structure; mass spectrometry; pressure 30 Pa to 100 Pa; spherical geometry; spherical stratified glow discharge; Discharges; Electron tubes; Geometry; Glow discharges; Laser beams; Materials; Plasmas; Dusty plasma; glow discharge; mass-spectrometry; nanoparticles; spherical geometry;
Journal_Title :
Plasma Science, IEEE Transactions on
DOI :
10.1109/TPS.2011.2159518
