Oral Sessions (Day1, Day2, Day3)
Poster Presentations (Day1, Day2, Day3)
Poster Presentations
- Day 2, June 23（Thu.） Room P (501, 502 and 503)
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2P-28 PDF
Relationship between intensity distribution of nitrogen oxide-based ions and inhomogeneous electric field distribution generated in negative corona discharges
Atmospheric pressure plasmas have problems for industrial applications that nitrogen oxides generated as discharge by-products cause corrosion of electrodes. However, there are many unclear issues about how they are generated and moved in an electric field. In this study, intensity distribution of nitrogen oxide-based ions formed in point-to-plane electrodes was obtained by mass spectrometer. Also, the inhomogeneous electric field distribution was calculated using conformal mapping method. When the distance between the electrodes was longer, nitrogen oxide-related ions were observed in a wider range than the calculated values. This suggested that the neutral nitrogen oxides diffused without being affected by the electric field and then ionized.