Journal
APPLIED PHYSICS LETTERS
Volume 86, Issue 15, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.1905801
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An atmospheric pressure glow discharge was generated using a needle-array electrode in nitrogen, and the voltage-current characteristics of the glow discharge were obtained in a range from 1 mA to 60 A. A pulsed high voltage with short rise time under 10 ns was employed to generate streamer discharges simultaneously at all needle tips. The large number of streamer discharges prevented the glow-to-arc transition caused by inhomogeneous thermalization. Semiconductor opening switch diodes were employed as an opening switch to shorten the rise time. The glow voltage was almost constant until the discharge current became 0.3 A, whereas the voltage increased with the current higher than 0.3 A. Electron density and temperature in a positive column of the glow discharge at 60 A were obtained to 1.4 X 10(12) cm(-3) and 1.3 eV from calculation based on nitrogen swarm data. (C) 2005 American Institute of Physics.
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