Complex interaction of subsequent surface streamers via deposited charge: a high- resolution experimental study

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F17%3A00094832" target="_blank" >RIV/00216224:14310/17:00094832 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1088/1361-6587/aa6ea2" target="_blank" >http://dx.doi.org/10.1088/1361-6587/aa6ea2</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1361-6587/aa6ea2" target="_blank" >10.1088/1361-6587/aa6ea2</a>

Result language

angličtina

Original language name

Complex interaction of subsequent surface streamers via deposited charge: a high- resolution experimental study

Original language description

The coplanar barrier discharge in synthetic air at 30 kPa pressure was studied by time-correlated single photon counting enhanced optical emission spectroscopy, far-field microscopy enhanced intensified CCD camera and sensitive current measurements. The discharge operated in a regime where two subsequent microdischarges appeared within the same voltage half-period. The electrical analysis of the barrier discharge setup enabled us to quantify charge transfer and the effective electric field development. During the second microdischarge the positive surface streamers follow the interface (triple-line) between the area of deposited charge from the previous one and the area of uncharged dielectric surface. It is shown that additional branching and flashes of surface streamers are responsible for the increased spatial complexity of the deposited surface charges at high overvoltage. A suppressed streamer propagating over the area of deposited surface charge was tracked and the evidence of surface streamer reconnection is presented. A spatiotemporal distribution (resolution of 120 ps and 100 um) of the reduced electric field strength was obtained for both microdischarges from the recorded luminosities of the molecular nitrogen. The reduced electric field of positive streamers in the first microdischarge reached 1200 Td. For the second one, the electric field values for the streamer at the triple-line are slightly lower than that, while for the suppressed streamers are even higher.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10305 - Fluids and plasma physics (including surface physics)

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

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

Publication year

2017

Confidentiality

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

Name of the periodical

Plasma Physics and Controlled Fusion

ISSN

0741-3335

e-ISSN

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Volume of the periodical

59

Issue of the periodical within the volume

7

Country of publishing house

GB - UNITED KINGDOM

Number of pages

11

Pages from-to

„07400101“-„07400111“

UT code for WoS article

000402411800001

EID of the result in the Scopus database

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