Abstract
This paper offers a clear methodology for the characterization of cold atmospheric plasmas and their development. The optical emission spectra of an Ar/O2 plasma jet produced in a plasma jet system at constant flow rates and for various potential discharges between 14 kV and 18 kV revealed that variations in voltage caused a significant difference in the intensity of the Ar/O2 emission. The plasma characteristics of electron temperature (Te), electron density (ne), plasma frequency (fp), Debye length (λD), and the number of particles in the Debye sphere (ND), were estimated using the technique of optical emission spectroscopy (OES). The obtained data are subject to further analysis and discussion. It was determined that potential discharges increased, and an electron temperature increased from 1.34 eV to 1.54 eV. With rising potential discharges, the Debye length decreases while the electron density, plasma frequency, and number of particles in the Debye sphere increase.
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