Characterization of High-Energy Nanosecond Single-Pulse Discharges in Pin-to-Pin Configuration

Won Joon Jeong, Alexey Shashurin, Arthur Dogariu, Andrey Y. Starikovskiy, Anatoli Morozov, Mikhail Shneider

Research output: Chapter in Book/Report/Conference proceedingConference contribution


The characteristics of single-pulse pin-to-pin nanosecond discharges in open air were studied for high pulse energies (> 20mJ, ~10ns). Specifically, the discharge voltage and current were determined from the back current shunt probe, the temporal evolution of the spark in ns-increments was observed by ICCD camera, and vibrational N2 temperatures within the spark channel were evaluated via Coherent Anti-Stokes Raman Spectroscopy. It was found that the most energy (30.07 mJ) was deposited when the spark gap was 5 mm in length. Visual observation of the spark channel showed simultaneous development of cathode-directed and anode-directed streamers on a sub-ns timescale that expanded with time until a connection was formed between them, which then transitioned into a much brighter spark channel. Temperatures were observed to be in the 4000-6000 K range immediately after the discharge, which showed a decay on a time scale of ~500 ns.

Original languageEnglish (US)
Title of host publicationAIAA SciTech Forum and Exposition, 2024
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
ISBN (Print)9781624107115
StatePublished - 2024
EventAIAA SciTech Forum and Exposition, 2024 - Orlando, United States
Duration: Jan 8 2024Jan 12 2024

Publication series

NameAIAA SciTech Forum and Exposition, 2024


ConferenceAIAA SciTech Forum and Exposition, 2024
Country/TerritoryUnited States

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering


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