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Experimental setup of double cylindrical electrode surface dielectric barrier discharge. Dry air gas and applied at 50 Hz. The graph on the right shows the voltage period and corresponding current signal. The two dotted lines illustrate the camera gate opened at 10 kV with one single current peak therein.
iCCD image of synchronized breakdown on both electrodes (camera gate of , applied voltage 12 kV, and camera trigger at 10 kV). The minimum distance between the electrodes is 4 cm. When glass plate with or without black coating is used as filter, they are placed between or beside the electrode as shown by the dotted lines.
Proportion of pictures with synchronized breakdowns on both electrodes without filter or with glass plate coated or not, placed between or beside the electrodes. The percentages are calculated from series of 275 pictures for each condition. The green parts of each column show the percentage of events occurring with streamers only in the area called “out” in Fig. 2.
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