Stereo-photography of streamers in air

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

Research output: Contribution to journalArticleAcademicpeer-review

69 Citations (Scopus)
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Abstract

Standard photographs of streamer discharges show a two-dimensional projection. Here, we present stereophotographic images that resolve their three-dimensional structure. We describe the stereoscopic setup 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°±12° is found; these angles do not significantly depend on the distance from the needle or on the gas pressure.
Original languageEnglish
Article number101502
Number of pages3
JournalApplied Physics Letters
Volume92
Issue number10
DOIs
Publication statusPublished - 2008

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