Time-resolved nanosecond imaging of the propagation of a corona-like plasma discharge in water at positive applied voltage polarity

This paper is an experimental study of a pulsed filamentary plasma discharge inside liquid water in pin-to-plane electrode configuration. Time-resolved electrical and imaging diagnostics have been performed. The initiation and the propagation of the discharge have been studied for several experiment...

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Bibliographic Details
Published in:Journal of physics. D, Applied physics Applied physics, 2010-05, Vol.43 (17), p.175202-175202
Main Authors: Ceccato, P H, Guaitella, O, Le Gloahec, M Rabec, Rousseau, A
Format: Article
Language:English
Subjects:
Electrodes
Exact sciences and technology
Imaging
Liquids
Nanocomposites
Nanostructure
Optical (ultraviolet, visible, infrared) measurements
Physics
Physics of gases, plasmas and electric discharges
Physics of plasmas and electric discharges
Plasma (physics)
Plasma diagnostic techniques and instrumentation
Polarity
Voltage
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Summary:This paper is an experimental study of a pulsed filamentary plasma discharge inside liquid water in pin-to-plane electrode configuration. Time-resolved electrical and imaging diagnostics have been performed. The initiation and the propagation of the discharge have been studied for several experimental parameters. The propagation is continuous and is followed by reilluminations at low water conductivity. The measured propagation velocity of the plasma discharge is 30 km s −1 for the secondary positive mode. This velocity was found to be surprisingly constant whatever the experimental parameters and especially as a function of the water conductivity.
ISSN:0022-3727
1361-6463
DOI:10.1088/0022-3727/43/17/175202