Electrical and Spectroscopic Diagnostics of Atmospheric Pressure DBD Plasma Jet

Abstract

Atmospheric pressure capillary dielectric barrier oxygen discharge plasma jet is developed to generate nonthermal plasma using unipolar positive pulse power supply. Both electrical and optical diagnostic techniques were used to characterize the produced plasma as functions of applied voltage and gas flow rate. Electrical diagnostics indicated that the discharge frequency decreased with gas flow rate but increased with the applied voltage. Analytical results obtained from the optical emission spectroscopic data revealed the gas temperature, excitation temperature and electron density. Gas temperature was found to decrease with increasing oxygen flow rate but increase linearly with applied voltage. The produced plasma was applied preliminarily to study the inactivation yield of Fusarium oxysporum fungus infected potato samples.

Investigation the effect of operating conditions on Te and ne of Argon plasma glow discharge at cathode graphite

“…Figure (3) shows the change in temperature of the electron with the rated voltage when the pressure is confirmed for each case. Where it can be seen that the increase in the temperature of the electron with the increase in voltage controlled pressure of each case and it can be explained that the increase in voltage increases the energy of the electron as well as the degree of ionization and thus increase the excitation rate of electrons and neutral atoms and increase the temperature of the electron this is consistent with the behavior of reference [12].…”

Thin Film Deposition by Atmospheric Pressure Dielectric Barrier Discharges Containing Eugenol: Discharge and Coating Characterizations

“…This behavior on the roughness and its uncertainty are proportional to the number of valleys produced by the plasma filaments in the film, which rises with the applied voltage. On the other hand, according to the scaling law, as the film thickness increases, the level of grain size and roughness also increases, until saturation [ 55 ]. This saturation occurs at high voltage with a drop in the thickness and still rises of roughness by field effect.…”