Study of Pressure and Temperature Influence on the Nitrogen Plasma under Discharge and Post-Discharge Conditions

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F11%3APU90907" target="_blank" >RIV/00216305:26310/11:PU90907 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Study of Pressure and Temperature Influence on the Nitrogen Plasma under Discharge and Post-Discharge Conditions
Original language description
In presented work, the decaying plasma in Pyrex tube was studied by the optical emission spectroscopy. DC discharge in flowing regime was used. The emission of three nitrogen spectral systems (1st and 2nd positive and 1st negative) was studied in time evolution for pressures of 500-5000 Pa and two wall temperatures: ambient and liquid nitrogen. Results showed that all three nitrogen systems had their intensity maxima in the afterglow part. These maxima decreased with the increase of pressure for all systems, and moved to the later decay time. Based on the band intensities, the relative vibrational populations of corresponding states were calculated. While populations of N2(B), and N2+(B) states were higher at the ambient wall temperature, the populations of N2(C) state were higher at the decreased wall temperature. Besides the nitrogen bands, some weak bands, mainly originating at NO(A, v = 0) level, were observed. Their intensities increased with the increase of pressure, and they showed the same temperature dependence as the nitrogen 2nd positive system.
Czech name
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Czech description
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
S - Specificky vyzkum na vysokych skolach

Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Book of Contributed Papers: 18th Symposium on Application of Plasma Processes and Workshop on Plasmas as a Planetary Atmospheres Mimics
ISBN
978-80-89186-77-8
ISSN
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e-ISSN
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Number of pages
5
Pages from-to
124-128
Publisher name
Neuveden
Place of publication
Bratislava
Event location
Vrátna
Event date
Jan 15, 2011
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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