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

54 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
Pages (from-to)101502-1/3
Number of pages3
JournalApplied Physics Letters
Volume92
Issue number10
DOIs
Publication statusPublished - 2008

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