Kinetic model of a DC oxygen glow discharge

A simple kinetic model predicting the concentration of oxygen atoms, metastable singlet molecules O{sub 2}(a{sup 1}{Delta}) and negative ions O{minus} in the positive column of a DC glow discharge is developed. The calculated O and O{sub 2}(a{sup 1}{Delta}) concentrations are compared to previously...

Full description

Saved in:
Bibliographic Details
Published in:Plasma chemistry and plasma processing 1989-06, Vol.9 (2), p.189-206
Main Authors: Gousset, G., Touzeau, M., Vialle, M., Ferreira, C. M.
Format: Article
Language:English
Subjects:
640301 - Atomic, Molecular & Chemical Physics- Beams & their Reactions
ATOMIC IONS
CHARGED PARTICLES
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
COLLISIONS
DISSOCIATION
ELECTRIC DISCHARGES
ELECTRIC FIELDS
ELECTRON COLLISIONS
ELECTRON DENSITY
ELECTRON-MOLECULE COLLISIONS
ELEMENTS
ENERGY LEVELS
ENERGY LOSSES
EXCITED STATES
GLOW DISCHARGES
ION DENSITY
ION SOURCES
IONIZATION
IONS
KINETICS
LOSSES
MATHEMATICAL MODELS
METASTABLE STATES
MOLECULAR IONS
MOLECULE COLLISIONS
NONMETALS
OXYGEN
OXYGEN IONS
OZONE
PLASMA DENSITY
PLASMA PRODUCTION
PLASMA SIMULATION
RECOMBINATION
SIMULATION
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A simple kinetic model predicting the concentration of oxygen atoms, metastable singlet molecules O{sub 2}(a{sup 1}{Delta}) and negative ions O{minus} in the positive column of a DC glow discharge is developed. The calculated O and O{sub 2}(a{sup 1}{Delta}) concentrations are compared to previously reported measurements for pressures p = 0.2-2 Torr and discharge currents I = 10-80 mA. The electron density calculated from the continuity equation j = n{sub e}e v{sub d} agrees well experiment. The rate coefficients for electron impact processes used in the balance equations of O, O{sub 2}(a{sup 1}{Delta}), and O{sup {minus}} were taken from the literature as a function of the reduced electric field E/N for E/N = 40-80 Td. A reasonable agreement is obtained between the model and the experiment with a set of 10 reactions for the production and destruction of the above-mentioned species.
ISSN:0272-4324
1572-8986
DOI:10.1007/BF01054280