Development of a trielectrode plasma curtain at atmospheric pressure

H.ZASTAWNY; R.SOSA; D.GRONDONA; A.MARQUEZ; G.ARTANA; H.KELLY

APPLIED PHYSICS LETTERS

AMER INST PHYSICS

Año: 2008 vol. 93 p. 501 - 509

0003-6951

The development of a nonequilibrium, low-power, trielectrode plasma curtain at atmospheric pressure is presented. The discharge is based on the combination of an ac dielectric barrier discharge with a dc corona discharge in a three electrode system, and can be sustained for large time periods and over interelectrode air gaps up to 20 mm and with an electrode length of ~10 cm in the transversal direction. The discharge is composed of a train of streamers, with a repetition frequency in the range 50-200 kHz, and carrying an average current in the range 0.1-0.4 mA. The geometry of the discharge makes it appropriate for gas decontamination.