Abstract
Empirical data on streamer formation and propagation innear-atmospheric pressure N2 and N2/O2mixtures are presented.Thedata were obtained primarily from high-speed, high-sensitivity shutterand streak photography of streamers produced in a≈13 cm gap.The streamer propagation velocity as a function of applied voltage,polarity, total pressure, and O2 concentration are provided.In addition, information on streamer bifurcation, and streamer shape andsize is included.The breakdown process has two phases: a fast phase featuring thepropagation of streamers, and much slower phase involving the heating ofthe gas to form the spark channel.Also we found that the addition of O2significantly alters the streamer characteristics and behaviour, indicating that photoionization processes play an important role.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
