Publication details
High-speed camera study of coplanar barrier discharge in air, nitrogen and argon
| Authors | |
|---|---|
| Year of publication | 2006 |
| Type | Article in Proceedings |
| Conference | Proceedings of 3rd International Workshop on Microplasmas |
| MU Faculty or unit | |
| Citation | |
| Field | Plasma physics |
| Keywords | coplanar discharge; high-speed camera |
| Description | Dielectric barrier discharge in coplanar arrangement, operating in air, nitrogen and argon at atmospheric pressure was studied by means of high-speed camera device. Two different electrode configurations were used. First configuration enabled the observation of spatio-temporal development of single discharge event. The discharge consists of narrow channel (microfilament) terminated by expanding area of diffuse plasma. The microfilament is located above the inter-electrode area; diffuse plasma covers the dielectric above the energizing electrodes. The light emission from the discharge in nitrogen and argon is observable even 1000 ns after the breakdown. The microfilament exhibits features of a normal glow discharge, including the negative glow and positive column. The second electrode configuration enabled the observation of two different microfilaments with one common electrode. The formation of diffuse plasma above the common electrode supplied by two independent narrow channels was studied. |
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