Unexpected rotational distribution of the ground electronic state OH(X-2 pi) generated by plasma at the interface with liquid water

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F18%3A00101208" target="_blank" >RIV/00216224:14310/18:00101208 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1088/1361-6595/aad0e3" target="_blank" >http://dx.doi.org/10.1088/1361-6595/aad0e3</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1361-6595/aad0e3" target="_blank" >10.1088/1361-6595/aad0e3</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Unexpected rotational distribution of the ground electronic state OH(X-2 pi) generated by plasma at the interface with liquid water

Popis výsledku v původním jazyce

An unexpected rotational distribution of the ground electronic state OH(X-2 pi) was observed by laser-induced fluorescence in a surface barrier discharge in contact with a liquid water interface. Analysis assuming a Boltzmann distribution yielded an unrealistically high rotational temperature above 600 K in the post-discharge phase. This is interpreted as a quasi-Boltzmann rotational distribution that is not in equilibrium with the translational temperature of the background gas. While the peculiarities of rotational distribution of excited OH(A(2) Sigma(+)) are known, the presented results show that even the ground electronic state OH(X-2 pi) does not always have to be a reliable indicator for spectroscopic thermometry in plasmas containing water. A series of similar observations challenges the usual approach in kinetic models, when the rotational distribution is assumed to follow the Boltzmann function with the temperature of surrounding gas.

Název v anglickém jazyce

Unexpected rotational distribution of the ground electronic state OH(X-2 pi) generated by plasma at the interface with liquid water

Popis výsledku anglicky

An unexpected rotational distribution of the ground electronic state OH(X-2 pi) was observed by laser-induced fluorescence in a surface barrier discharge in contact with a liquid water interface. Analysis assuming a Boltzmann distribution yielded an unrealistically high rotational temperature above 600 K in the post-discharge phase. This is interpreted as a quasi-Boltzmann rotational distribution that is not in equilibrium with the translational temperature of the background gas. While the peculiarities of rotational distribution of excited OH(A(2) Sigma(+)) are known, the presented results show that even the ground electronic state OH(X-2 pi) does not always have to be a reliable indicator for spectroscopic thermometry in plasmas containing water. A series of similar observations challenges the usual approach in kinetic models, when the rotational distribution is assumed to follow the Boltzmann function with the temperature of surrounding gas.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10305 - Fluids and plasma physics (including surface physics)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název periodika

PLASMA SOURCES SCIENCE &amp; TECHNOLOGY

ISSN

0963-0252

e-ISSN

—

Svazek periodika

27

Číslo periodika v rámci svazku

8

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

5

Strana od-do

1-5

Kód UT WoS článku

000440633600001

EID výsledku v databázi Scopus

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