Publication detail
Optical Emission Spectroscopy of Atmospheric Pressure Discharges in Nitrogen-Methane Gas Mixtures
KRČMA, F. KLOHNOVÁ, K. POLÁCHOVÁ, L. HORVÁTH, G.
Original Title
Optical Emission Spectroscopy of Atmospheric Pressure Discharges in Nitrogen-Methane Gas Mixtures
Type
conference paper
Language
English
Original Abstract
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.
Keywords
Optical emission spectroscopy, atmospheric pressure discharge, Titan like atmosphere, nitrogenmethane gas mixture
Authors
KRČMA, F.; KLOHNOVÁ, K.; POLÁCHOVÁ, L.; HORVÁTH, G.
RIV year
2011
Released
14. 1. 2011
Location
Bratislava
ISBN
978-80-89186-77-8
Book
Book of Contributed Papers: 18th Symposium on Application of Plasma Processes and Workshop on Plasmas as a Planetary Atmospheres Mimics
Pages from
46
Pages to
50
Pages count
5
BibTex
@inproceedings{BUT36686,
author="František {Krčma} and Karolína {Klohnová} and Lucie {Töröková} and Gabriel {Horváth}",
title="Optical Emission Spectroscopy of Atmospheric Pressure Discharges in Nitrogen-Methane Gas Mixtures",
booktitle="Book of Contributed Papers: 18th Symposium on Application of Plasma Processes and Workshop on Plasmas as a Planetary Atmospheres Mimics",
year="2011",
pages="46--50",
address="Bratislava",
isbn="978-80-89186-77-8"
}