Positive streamers in ambient air and a N2:O2-mixture (99.8 : 0.2)

Abstract

Photographs show distinct differences between positive streamers in air or in a nitrogen-oxygen mixture (0.2% O2). The streamers in the mixture branch more frequently, but the branches also extinguish more easily. Probably related to that, the streamers in the mixture propagate more in a zigzag manner while they are straighter in air. Furthermore, streamers in the mixture can become longer; they are thinner and more intense.

2 pages, 4 figures, paper is accepted for IEEE Trans. Plasma Sci. and scheduled to appear in June 2008

References in corpus (3)

• Photoionization in negative streamers: fast computations and two propagation modes
• The multiscale nature of streamers
• Spatial coupling of particle and fluid models for streamers: where nonlocality matters

Cited by in corpus (4)

• Positive and negative streamers in ambient air: measuring diameter, velocity and dissipated energy
• Probing photo-ionization: simulations of positive streamers in varying N2:O2 mixtures
• Positive streamers in air and nitrogen of varying density: experiments on similarity laws
• Streamers, sprites, leaders, lightning: from micro- to macroscales