Stereo-photography of streamers in air
- Department of Applied Physics, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven (Netherlands)
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 deg. {+-}12 deg. is found; these angles do not significantly depend on the distance from the needle or on the gas pressure.
- OSTI ID:
- 21120568
- Journal Information:
- Applied Physics Letters, Vol. 92, Issue 10; Other Information: DOI: 10.1063/1.2894195; (c) 2008 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
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