Abstract
Non thermal argon plasma needle at atmospheric pressure was constructed. The experimental set up was based on simple and low cost electric components that generate electrical field sufficiently high at the electrodes to ionize various gases which flow at atmospheric pressure. A high AC power supply was used with 9.6kV peak to peak and 33kHz frequency. The plasma was generated using two electrodes. The voltage and current discharge waveform were measured. The temperature of Ar gas plasma jet at different gas flow rate and distances from the plasma electrode was also recorded. It was found that the temperature increased with increasing frequency to reach the maximum value at 15 kHz, and that the current leading the voltage, which demonstrates the capacitive character of the discharge. The electron temperature was measured at about 0.61 eV, and we calculated the electron number density to be 4.38×1015 cm-3.
Highlights
Atmospheric pressure plasma jet, non-thermal plasma, plasma propagation in plastic tube, cold atmospheric pressure plasma jets (APPJs) have attracted much attention due to their versatility, low-cost operation and ability to produce reactive chemistry at room temperature[1].These facts make the plasma jet very attractive for applications in the biomedical field
-called plasma needle reported in [3] produced cold argon plasma on the tip of a thin electrode inserted into a 10-cm-long flexible catheter
The gas temperature was determined by mercury thermometer at various distances from the end of the plasma needle electrode, for various Argon gas flow rate
Summary
Atmospheric pressure plasma jet, non-thermal plasma, plasma propagation in plastic tube, cold atmospheric pressure plasma jets (APPJs) have attracted much attention due to their versatility, low-cost operation and ability to produce reactive chemistry at room temperature[1].These facts make the plasma jet very attractive for applications in the biomedical field. Key words Plasma needle, argon plasma jet, cold atmospheric plasma, non thermal plasma. Introduction Atmospheric pressure plasma jet, non-thermal plasma, plasma propagation in plastic tube, cold atmospheric pressure plasma jets (APPJs) have attracted much attention due to their versatility, low-cost operation and ability to produce reactive chemistry at room temperature[1].
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