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Positive- and Negative-Polarity Nanosecond-Pulsed Cryogenic Plasma in Liquid Argon
by
Danil Dobrynin
Danil Dobrynin * and
Alexander Fridman
Alexander Fridman
C&J Nyheim Plasma Institute, Drexel University, Camden, NJ 08103, USA
*
Author to whom correspondence should be addressed.
Plasma 2024, 7(3), 510-516; https://doi.org/10.3390/plasma7030027 (registering DOI)
Submission received: 7 June 2024
/
Revised: 25 June 2024
/
Accepted: 27 June 2024
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Published: 29 June 2024
Abstract
This work reports on observations of positive and negative nanosecond-pulsed discharge in liquid argon. The structures of both positive and negative discharges, their sizes, and the propagation velocities exhibit remarkable similarity. Similar to the streamers in liquid nitrogen and gases, negative streamers require higher applied voltages (electric fields) and propagate to shorter distances. For both polarities, the spectra are almost identical and appear to be a superposition of strongly broadened atomic lines, with preliminary analysis of broadening indicating densities of about 40% that of liquid.
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MDPI and ACS Style
Dobrynin, D.; Fridman, A.
Positive- and Negative-Polarity Nanosecond-Pulsed Cryogenic Plasma in Liquid Argon. Plasma 2024, 7, 510-516.
https://doi.org/10.3390/plasma7030027
AMA Style
Dobrynin D, Fridman A.
Positive- and Negative-Polarity Nanosecond-Pulsed Cryogenic Plasma in Liquid Argon. Plasma. 2024; 7(3):510-516.
https://doi.org/10.3390/plasma7030027
Chicago/Turabian Style
Dobrynin, Danil, and Alexander Fridman.
2024. "Positive- and Negative-Polarity Nanosecond-Pulsed Cryogenic Plasma in Liquid Argon" Plasma 7, no. 3: 510-516.
https://doi.org/10.3390/plasma7030027
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