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Content Provider | IEEE Xplore Digital Library |
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Author | Sands, B.L. Ganguly, B.N. |
Copyright Year | 2008 |
Description | Author affiliation: Air Force Res. Lab., Wright Patterson AFB, OH, USA (Ganguly, B.N.) || UES Inc., Wright Patterson AFB, OH, USA (Sands, B.L.) |
Abstract | We report on the development of an atmospheric pressure plasma jet (APPJ) in a dielectric capillary arrangement using submicrosecond unipolar pulsed-DC excitation as a source for generating a stable, nonequilibrium plasma . This APPJ source differs from other arrangements in that the plasma jet is a self-sustained streamer-like discharge rather than the flow-driven plasma effluent from a discharge within the capillary. We examine the characteristics of this APPJ device in two operating modes. In an open-air configuration, the device runs in a low current streamer discharge mode characterized by a visible plasma jet with a length of ~3.5 cm using a 12 kV voltage pulse and a repetition rate of 1 kHz with an Ar/He flow gas. This APPJ device can be operated with a single powered electrode terminated into a virtual ground plane. With the addition of a physical external cathode, a thin transient discharge filament forms along the capillary axis from which several Amps of current can be drawn. In this closed configuration, the discharge can be described as a spatially confined capillary dielectric barrier discharge of limited duration. We will show results using electrical measurements and spatiotemporally-resolved optical emission and gated ICCD imaging to characterize this APPJ source. |
Starting Page | 373 |
Ending Page | 376 |
File Size | 293543 |
Page Count | 4 |
File Format | |
ISBN | 9780955805202 |
Language | English |
Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Publisher Date | 2008-09-07 |
Publisher Place | UK |
Access Restriction | Subscribed |
Rights Holder | GD2008 Local Organizing Committee |
Subject Keyword | Atmospheric-pressure plasmas Plasma properties Pulse generation Plasma applications Plasma stability Effluents Fault location Dielectrics Plasma devices Plasma sources |
Content Type | Text |
Resource Type | Article |
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