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arXiv · 0802.3639

Stereo-photography of point-plane streamers in air

S. Nijdam·J. S. Moerman·T. M. P. Briels·E. M. van Veldhuizen·U. Ebert
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Abstract

Standard photographs of streamer discharges show a two-dimensional projection. We here present stereo-photographic images that resolve their three-dimensional structure. We describe the stereoscopic set-up and evaluation, and we present results for positive streamer discharges in air at 0.2 - 1 bar in a point plane geometry with a gap distance of 14 cm and a voltage pulse of 47 kV. In this case an approximately Gaussian distribution of branching angles of 43 degrees is found; these angles do not significantly depend on the distance from the needle or on the gas pressure.

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S. Nijdam, J. S. Moerman, T. M. P. Briels, E. M. van Veldhuizen, U. Ebert. 2008-02-25. Stereo-photography of point-plane streamers in air. https://doi.org/10.1063/1.2894195

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