Transient spark in air at atmospheric pressure

M. Janda*, Z. Machala, G. D. Stancu, D. Pai, D. A. Lacoste, C. O. Laux

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We have investigated a novel type of streamer-to-spark transition discharge in air at atmospheric pressure, named the transient spark (TS). Despite the DC applied voltage, TS has a pulsed character with very short (<100 ns) high current (>1 A) pulses, with repetitive frequencies of a few kHz. The emission of N2 2nd and 1st positive, N2 + 1st negative, and of the atomic N and O lines, was detected. The non-equilibrium character of TS was confirmed by calculated vibrational (3000-5000 K) and rotational (500-1500 K) temperatures. Additionally, temporal emission profiles were obtained using PMT measurements.

Original languageEnglish (US)
Title of host publicationGD 2008 - 17th International Conference on Gas Discharges and Their Applications
Pages349-352
Number of pages4
StatePublished - 2008
Externally publishedYes
Event17th International Conference on Gas Discharges and Their Applications, GD 2008 - Cardiff, United Kingdom
Duration: Sep 7 2008Sep 12 2008

Other

Other17th International Conference on Gas Discharges and Their Applications, GD 2008
CountryUnited Kingdom
CityCardiff
Period09/7/0809/12/08

ASJC Scopus subject areas

  • Geochemistry and Petrology
  • Geotechnical Engineering and Engineering Geology

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