Publication detail
Pink Afterglow in Nitrogen - Hydrocarbon Mixtures
Krčma, F.
Original Title
Pink Afterglow in Nitrogen - Hydrocarbon Mixtures
English Title
Pink Afterglow in Nitrogen - Hydrocarbon Mixtures
Type
journal article - other
Language
en
Original Abstract
The effect of the nitrogen pink afterglow quenching by hydrocarbon traces is studied in the flowing afterglow regime. The Pyrex wall temperature around the observation point was varied between the ambient and liquid nitrogen temperature. The spectra of nitrogen first and second positive and first negative bands and CN violet and red systems were observed. The strong quenching of the vibrational populations of the nitrogen N2(B), N2(C) and N2+(B) states was observed and this effect increases with the decreasing wall temperature. The vibrational populations of CN(A) and CN(B) states are more or less independent of the hydrocarbon concentration at the ambient wall temperature, but they increase with the decreasing temperature. A simplified kinetic model of the processes at our experimental condition is presented, too.
English abstract
The effect of the nitrogen pink afterglow quenching by hydrocarbon traces is studied in the flowing afterglow regime. The Pyrex wall temperature around the observation point was varied between the ambient and liquid nitrogen temperature. The spectra of nitrogen first and second positive and first negative bands and CN violet and red systems were observed. The strong quenching of the vibrational populations of the nitrogen N2(B), N2(C) and N2+(B) states was observed and this effect increases with the decreasing wall temperature. The vibrational populations of CN(A) and CN(B) states are more or less independent of the hydrocarbon concentration at the ambient wall temperature, but they increase with the decreasing temperature. A simplified kinetic model of the processes at our experimental condition is presented, too.
Keywords
nitrogen afterglow, pink afterglow, CN chemiluminiscence, nitrogen kinetics
RIV year
2005
Released
01.10.2005
Publisher
Slovenská akadémia ved
Location
Bratislava
Pages from
453
Pages to
460
Pages count
8
BibTex
@article{BUT42436,
author="František {Krčma}",
title="Pink Afterglow in Nitrogen - Hydrocarbon Mixtures",
annote="The effect of the nitrogen pink afterglow quenching by hydrocarbon traces is studied in the flowing afterglow regime. The Pyrex wall temperature around the observation point was varied between the ambient and liquid nitrogen temperature. The spectra of nitrogen first and second positive and first negative bands and CN violet and red systems were observed. The strong quenching of the vibrational populations of the nitrogen N2(B), N2(C) and N2+(B) states was observed and this effect increases with the decreasing wall temperature. The vibrational populations of CN(A) and CN(B) states are more or less independent of the hydrocarbon concentration at the ambient wall temperature, but they increase with the decreasing temperature. A simplified kinetic model of the processes at our experimental condition is presented, too.",
address="Slovenská akadémia ved",
chapter="42436",
institution="Slovenská akadémia ved",
journal="Acta Physica Slovaca",
number="5",
volume="55",
year="2005",
month="october",
pages="453--460",
publisher="Slovenská akadémia ved",
type="journal article - other"
}