Stereo-photography of point-plane streamers in air
Plasma Physics
2008-03-20 v1
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.
Keywords
Cite
@article{arxiv.0802.3639,
title = {Stereo-photography of point-plane streamers in air},
author = {S. Nijdam and J. S. Moerman and T. M. P. Briels and E. M. van Veldhuizen and U. Ebert},
journal= {arXiv preprint arXiv:0802.3639},
year = {2008}
}
Comments
5 pages, 5 figures, accepted by Applied Physics Letters for publication on March 10th 2008