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Brief Report

Positive- and Negative-Polarity Nanosecond-Pulsed Cryogenic Plasma in Liquid Argon

C&J Nyheim Plasma Institute, Drexel University, Camden, NJ 08103, USA
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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 / 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.
Keywords: nanosecond-pulsed discharge; plasma in liquid; discharge in liquid argon nanosecond-pulsed discharge; plasma in liquid; discharge in liquid argon

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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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