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It has been reported earlier that quasiperiodic behavior can be observed in the numerical simulation of an atmospheric pressure dielectric barrier discharge (APDBD) under selected parameters. However, whether such phenomenon exists in reality is still unknown. This paper reports some experimental observations which could be possibly regarded as the quasiperiodic behavior in the APDBD.
The Penning ionization in atmospheric helium Dielectric Barrier Discharges (DBD) with air impurity was investigated. Discharge inception voltage and emission spectra were measured under Background Air Pressures (BAP) from 0.8 Pa to 1000 Pa. Results show that in a range of BAP from 0.8 Pa to 190 Pa, discharge inception voltage decrease obviously and the intensity of the 391.4 nm line increase with...
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