Title :
Pressure Effects in the Spatial Development of Microcathode Sustained Discharges in Rare-Gas Oxygen Mixtures
Author :
Sousa, Joao Santos ; Puech, Vincent
Author_Institution :
Lab. de Phys. des Gaz et des Plasmas, Univ. Paris-Sud 11, Orsay, France
Abstract :
It has been recently demonstrated that microcathode sustained discharges (MCSD) are very efficient for the production of large fluxes of singlet delta oxygen (SDO). In this paper, a comparison between MCSD operation in Ar/O2 and in He/O2 mixtures is done. It is shown that, even if SDO production efficiency is theoretically much higher in Ar/O2 mixtures, atmospheric pressure operation is only possible in He-based mixtures.
Keywords :
argon; cathodes; discharges (electric); excited states; helium; oxygen; plasma pressure; plasma sources; Ar-O2; Ar-O2 mixture; He-O2; He-O2 mixture; MCSD; SDO production efficiency; atmospheric pressure operation; large singlet delta oxygen flux production; microcathode sustained discharge spatial development; pressure 1 atm; pressure effects; rare gas-oxygen mixtures; Argon; Discharges; Fault location; Helium; Plasma temperature; Production; Atmospheric pressure plasmas; microdischarges; singlet oxygen;
Journal_Title :
Plasma Science, IEEE Transactions on
DOI :
10.1109/TPS.2011.2157838
