Optical Emission Spectroscopy of Atmospheric Pressure Discharges in Nitrogen-Methane Gas Mixtures

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Optical Emission Spectroscopy of Atmospheric Pressure Discharges in Nitrogen-Methane Gas Mixtures

Popis výsledku v původním jazyce

The optical emission spectra of abnormal glow and DBD discharges were studied at atmospheric pressure and ambient temperature. The used nitrogen-methane mixtures (0.5-2.5 % of methane) are corresponding to the composition of Saturn's moon Titan atmosphere. Both gases had purity better than 99.999 % and the whole system was evacuated before measurement to suppress oxygen traces. Optical emission spectra were taken in the dependence of applied power and gas mixture composition. Nitrogen, C2 and CN radical spectra as well as atomic lines of hydrogen and carbon were identified in the case of abnormal glow discharge. Only nitrogen second positive spectra were recorded in the case of DBD due to lower transparency of the system as well as due to lower applied power. The rotational and vibrational temperatures were obtained in both discharge configurations for different species.

Název v anglickém jazyce

Optical Emission Spectroscopy of Atmospheric Pressure Discharges in Nitrogen-Methane Gas Mixtures

Popis výsledku anglicky

The optical emission spectra of abnormal glow and DBD discharges were studied at atmospheric pressure and ambient temperature. The used nitrogen-methane mixtures (0.5-2.5 % of methane) are corresponding to the composition of Saturn's moon Titan atmosphere. Both gases had purity better than 99.999 % and the whole system was evacuated before measurement to suppress oxygen traces. Optical emission spectra were taken in the dependence of applied power and gas mixture composition. Nitrogen, C2 and CN radical spectra as well as atomic lines of hydrogen and carbon were identified in the case of abnormal glow discharge. Only nitrogen second positive spectra were recorded in the case of DBD due to lower transparency of the system as well as due to lower applied power. The rotational and vibrational temperatures were obtained in both discharge configurations for different species.

Druh

D - Stať ve sborníku

CEP obor

BL - Fyzika plasmatu a výboje v plynech

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2011

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

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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Počet stran výsledku

5

Strana od-do

46-50

Název nakladatele

Neuveden

Místo vydání

Bratislava

Místo konání akce

Vrátna

Datum konání akce

15. 1. 2011

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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