Influence of repetition frequency on streamer-to-spark breakdown mechanism in transient spark discharge

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F17%3A00108754" target="_blank" >RIV/00216224:14310/17:00108754 - isvavai.cz</a>

Result on the web

<a href="http://iopscience.iop.org/article/10.1088/1361-6463/aa8940" target="_blank" >http://iopscience.iop.org/article/10.1088/1361-6463/aa8940</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1361-6463/aa8940" target="_blank" >10.1088/1361-6463/aa8940</a>

Result language

angličtina

Original language name

Influence of repetition frequency on streamer-to-spark breakdown mechanism in transient spark discharge

Original language description

Streamer-to-spark transition in a self-pulsing positive transient spark (TS) discharge was investigated at different repetition frequencies. The temporal evolution of the TS was recorded, showing the primary streamer and the secondary streamer phases. A streak camera-like images were obtained using spatio-temporal reconstruction of the discharge emission detected by a photomultiplier tube with light collection system placed on a micrometric translation stage. With increasing TS repetition frequency f (from similar to 1 to 6 kHz), the increase of the propagation velocity of both the primary and the secondary streamer was observed. Acceleration of the primary and secondary streamers, and shortening of streamer-to-spark transition time tau with increasing f was attributed to the memory effect composed of pre-heating and gas composition changes induced by the previous TS pulses. Fast propagation of the secondary streamer through the entire gap and fast gas heating could explain the short tau (similar to 100 ns) at f above similar to 3 kHz.

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

—

OECD FORD branch

10300 - Physical sciences

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2017

Confidentiality

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

Name of the periodical

Journal of Physics D: Applied Physics

ISSN

0022-3727

e-ISSN

1361-6463

Volume of the periodical

50

Issue of the periodical within the volume

42

Country of publishing house

GB - UNITED KINGDOM

Number of pages

8

Pages from-to

1-8

UT code for WoS article

000411891400001

EID of the result in the Scopus database

2-s2.0-85031111639