Radially and temporally resolved electric field of positive streamers in air and modelling of the induced plasma chemistry

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F16%3A00464627" target="_blank" >RIV/61389021:_____/16:00464627 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1088/0963-0252/25/4/045021" target="_blank" >http://dx.doi.org/10.1088/0963-0252/25/4/045021</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/0963-0252/25/4/045021" target="_blank" >10.1088/0963-0252/25/4/045021</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Radially and temporally resolved electric field of positive streamers in air and modelling of the induced plasma chemistry

Popis výsledku v původním jazyce

The initial stages of transient luminous events (TLEs) occurring in the upper atmosphere of the Earth are, in a certain pressure range, controlled by the streamer mechanism. This paper presents the results of the first laboratory experiments to study the TLE streamer phenomena under conditions close to those of the upper atmosphere. Spectrally and highly spatiotemporally resolved emissions originating from radiative states N-2(C-3 Pi(u)) and N-2(+)(B-2 Sigma(+)(u)) have been recorded from the positive streamer discharge. Periodic ionizing events were generated in a barrier discharge arrangement at a pressure of 4 torr of synthetic air, i.e. simulating the pressure conditions at altitudes of similar or equal to 37 km. The reduced electric field strength distribution within the streamer head was determined from the ratio of the N-2(+)/N-2 band intensities with peak values up to 500 Td and overall duration of about 10 ns.

Název v anglickém jazyce

Radially and temporally resolved electric field of positive streamers in air and modelling of the induced plasma chemistry

Popis výsledku anglicky

The initial stages of transient luminous events (TLEs) occurring in the upper atmosphere of the Earth are, in a certain pressure range, controlled by the streamer mechanism. This paper presents the results of the first laboratory experiments to study the TLE streamer phenomena under conditions close to those of the upper atmosphere. Spectrally and highly spatiotemporally resolved emissions originating from radiative states N-2(C-3 Pi(u)) and N-2(+)(B-2 Sigma(+)(u)) have been recorded from the positive streamer discharge. Periodic ionizing events were generated in a barrier discharge arrangement at a pressure of 4 torr of synthetic air, i.e. simulating the pressure conditions at altitudes of similar or equal to 37 km. The reduced electric field strength distribution within the streamer head was determined from the ratio of the N-2(+)/N-2 band intensities with peak values up to 500 Td and overall duration of about 10 ns.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BL - Fyzika plasmatu a výboje v plynech

OECD FORD obor

—

Projekt

<a href="/cs/project/GA15-04023S" target="_blank" >GA15-04023S: Pokročilý výzkum kinetických procesů ve streamerových výbojích</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název periodika

Plasma Sources Science & Technology

ISSN

0963-0252

e-ISSN

—

Svazek periodika

25

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

15

Strana od-do

—

Kód UT WoS článku

000380380200035

EID výsledku v databázi Scopus

2-s2.0-84979619774