Detailed Information on Publication Record
2017
Cross-correlation spectroscopy study of the Transient Spark discharge in atmospheric pressure air
JANDA, Mario, Tomáš HODER, Abdollah SARANI, Ronny BRANDENBURG, Zdenko MACHALA et. al.Basic information
Original name
Cross-correlation spectroscopy study of the Transient Spark discharge in atmospheric pressure air
Authors
JANDA, Mario (703 Slovakia), Tomáš HODER (203 Czech Republic, guarantor, belonging to the institution), Abdollah SARANI (276 Germany), Ronny BRANDENBURG (276 Germany) and Zdenko MACHALA (703 Slovakia)
Edition
Plasma Sources Science and Technology, Bristol, IOP PUBLISHING LTD, 2017, 0963-0252
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10305 Fluids and plasma physics
Country of publisher
United Kingdom of Great Britain and Northern Ireland
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
Impact factor
Impact factor: 3.939
RIV identification code
RIV/00216224:14310/17:00094682
Organization unit
Faculty of Science
UT WoS
000398283900004
Keywords in English
cross-correlation spectroscopy; transient spark; streamer-to-spark breakdown mechanism; atmospheric air discharge
Tags
International impact, Reviewed
Změněno: 30/3/2018 22:49, Ing. Nicole Zrilić
Abstract
V originále
A streamer-to-spark transition in a self-pulsing transient spark (TS) discharge of positive polarity in air was investigated using cross-correlation spectroscopy. The entire temporal evolution of the TS was recorded for several spectral bands and lines: the second positive system of N2 (337.1 nm), the first negative system of N2+ (391.4 nm), and atomic oxygen (777.1 nm). The results enable the visualization of the different phases of discharge development including the primary streamer, the secondary streamer, and the transition to the spark. The spatio-temporal distribution of the reduced electric field strength during the primary streamer phase of the TS was determined and discussed. The transition from the streamer to the spark proceeds very fast within about 10 ns for the TS with a current pulse repetition rate in the range 8-10 kHz. This is attributed to memory effects, leading to a low net electron attachment rate and faster propagation of the secondary streamer. Gas heating, accumulation of species such as oxygen atoms from the previous TS pulses, as well as generation of charged particles by stepwise ionization seem to play important roles contributing to this fast streamer-to-spark transition.
Links
ED2.1.00/03.0086, research and development project |
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GA15-04023S, research and development project |
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LO1411, research and development project |
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