OPTICAL DIAGNOSTICS OF DIFFUSE HELIUM COPLANAR DBD
| Authors | |
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| Year of publication | 2014 |
| Type | Article in Proceedings |
| Citation | |
| Keywords | DBD, TCSPC, helium, coplanar discharge |
| Description | Atmospheric pressure discharges are prone to streamer breakdown, which leads to their filamentation. Homogeneous discharges can be generated in helium, neon and nitrogen in volume confguration of electrodes. However the use of coplanar configuration typically leads to a flamentary discharge. We report observation of a stable homogeneous discharge in coplanar config uration in helium. Spatio-temporally resolved profile of electrical field was calculated from the intensity ratio of He lines 667.8nm and 728.1 nm. The intensity distributions of the lines were measured using Time-Correlated Single Photon Counting. The results show two cathode and anode-directed ionizing waves with origin above the anode. |
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