Journal
IEEE TRANSACTIONS ON PLASMA SCIENCE
Volume 33, Issue 2, Pages 262-263Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TPS.2005.845947
Keywords
capacitive probe; discharge lamp; electrical breakdown; ionization wave; lamp ignition; plasma; surface probe
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In this paper, we present measurements related to the early stages of electrical breakdown occurring in a low-pressure argon straight discharge tube. A capacitive probe was used to retrieve the evolution of the lamp electrostatic potential over time and space. The potential and calculated electric field, displayed in space-time diagrams, show that a region of strong potential gradient propagates from the cathode toward the anode and then backward. This is followed by a homogenization of the electric field in the inter-electrode space.
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