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@proceedings{1452341,
author = {Navrátil, Zdeněk and Čech, Jan and Morávek, Tomáš and Ráheľ, Jozef},
booktitle = {ESCAMPIG XXIV, Glasgow, Scotland},
keywords = {coplanar barrier discharge;helium;electric field measurement;bremsstrahlung},
language = {eng},
title = {Optical diagnostics of helium coplanar barrier discharge: pre-breakdown light and electric field measurement},
year = {2018}
}
TY - CONF
ID - 1452341
AU - Navrátil, Zdeněk - Čech, Jan - Morávek, Tomáš - Ráheľ, Jozef
PY - 2018
TI - Optical diagnostics of helium coplanar barrier discharge: pre-breakdown light and electric field measurement
KW - coplanar barrier discharge;helium;electric field measurement;bremsstrahlung
N2 - Coplanar barrier discharge, operated at AC high voltage of 9.5 kHz in helium at atmospheric pressure, was studied by phase resolved imaging with ICCD camera (PROES) and by phase resolved single photon counting (PRSPC). The 2D-resolved PROES measurement on singlet helium lines 667.8 and 728.1 nm provided a detailed electric field development in observed ionization waves. The method of PRSPC enabled us to record spectra during the dark phase of the discharge. A weak prebreakdown light, observed both with PROES and PRSPC and attributed to a bremsstrahlung radiation of electrons on helium atoms, served for a measurement of low electric fields about 1 Td in the dark phase
ER -
NAVRÁTIL, Zdeněk, Jan ČECH, Tomáš MORÁVEK a Jozef RÁHEĽ. Optical diagnostics of helium coplanar barrier discharge: pre-breakdown light and electric field measurement. In \textit{ESCAMPIG XXIV, Glasgow, Scotland}. 2018.
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