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In this paper, an optical diagnostic system is used to measure the molecular vibrational temperature of a micro-hollow cathode device. The micro-hollow cathode discharge setup can generate micro-plasma plume in the flowing mixture of Ar and N2 at atmospheric pressure. The characteristics of the micro-plasma jet have been investigated by means of optical method and electrical one. Optical emission...
A continuous-wave microwave radiation source is under investigation using Micro-Hollow Cathode Discharge (MHCD) technology. Arrays of grooves, 50 microns in diameter and ~3 mm long have been fabricated to contain the plasma discharge. Argon discharge in the resonance cavity has been observed at atmospheric pressure. The turn-on voltage was observed to be 400V (383μA). Lowering the voltage to 310V...
Emission spectroscopy of plasma-excited chemical species is widely used for generalized chemical analyses in bench-top systems. This paper explores the use of pulsed microdischarges between two and three electrode microstructures, which operate in air at atmospheric pressure, for use in handheld chemical analyzers. Pulsed microdischarges are fired between two-electrodes spaced apart by 0.2-2 mm. Synchronized...
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