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- Title
Parameters of the Plasma of a Large-Scale High-Voltage Discharge in Air at Reduced Pressures.
- Authors
Strikovskiy, A. V.; Korobkov, S. V.; Gushchin, M. E.; Evtushenko, A. A.; Zudin, I. Yu.
- Abstract
The Sprite device allows one to ignite an ~1-m-long pulsed high-voltage discharge detached from the metal chamber walls in both a uniform gas and a gas with a large-scale pressure gradient. A microwave interferometer, a magnetic probe, and optical photography are used to diagnose the discharge plasma. It is established that, at pressures of 0.05−1 Torr, the transverse profile of the diffuse discharge glow is close to the current profile. The plasma density in the diffuse discharge reaches 1012 cm–3. The results of interferometric measurements of the plasma density agree well with the values obtained from measurements of the current density in the approximation of a steady-state electron drift. The results obtained are necessary for laboratory modeling of high-altitude discharges in the Earth's atmosphere.
- Subjects
AIR pressure; GLOW discharges; PLASMA density; PLASMA flow; ATMOSPHERE; ATMOSPHERIC pressure
- Publication
Plasma Physics Reports, 2019, Vol 45, Issue 6, p527
- ISSN
1063-780X
- Publication type
Article
- DOI
10.1134/S1063780X19060102