Determination of the Nitrogen Atom Wall Recombination Probability in Late Afterglow

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

Determination of the Nitrogen Atom Wall Recombination Probability in Late Afterglow

Popis výsledku v původním jazyce

The reaction kinetics in nitrogen flowing afterglow was studied by optical emission spectroscopy. The DC flowing post-discharge in pure nitrogen was created in a quartz tube at the total gas pressure of 1000 Pa and discharge power of 130 W. The optical emission spectra were measured along the flow tube. Three nitrogen spectral systems - the first positive, the second positive, and the first negative were identified. It was found that N atoms are the most important particles in this late nitrogen afterglow, their volume recombination starts a chain of reactions which produce exited states of molecular nitrogen. In order to explain the decrease of N atom concentration, it was also necessary to include the surface recombination of N atoms to the model. The surface recombination was considered as a first order reaction and wall recombination probability ? = (2.16 ? 0.07) x 10-6 was determined from the experimental data.

Název v anglickém jazyce

Determination of the Nitrogen Atom Wall Recombination Probability in Late Afterglow

Popis výsledku anglicky

The reaction kinetics in nitrogen flowing afterglow was studied by optical emission spectroscopy. The DC flowing post-discharge in pure nitrogen was created in a quartz tube at the total gas pressure of 1000 Pa and discharge power of 130 W. The optical emission spectra were measured along the flow tube. Three nitrogen spectral systems - the first positive, the second positive, and the first negative were identified. It was found that N atoms are the most important particles in this late nitrogen afterglow, their volume recombination starts a chain of reactions which produce exited states of molecular nitrogen. In order to explain the decrease of N atom concentration, it was also necessary to include the surface recombination of N atoms to the model. The surface recombination was considered as a first order reaction and wall recombination probability ? = (2.16 ? 0.07) x 10-6 was determined from the experimental data.

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

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název statě ve sborníku

20th Symposium on Application of Plasma Processes & COST TD1208 Workshop on Application of Gaseous Plasma with Liquids ? Book of Contributed Papers

ISBN

978-80-8147-027-1

ISSN

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e-ISSN

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Počet stran výsledku

4

Strana od-do

200-203

Název nakladatele

Comenius University

Místo vydání

Bratislava

Místo konání akce

Tatranská Lomnica

Datum konání akce

17. 1. 2015

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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