| NAVRÁTIL, Zdeněk, Raavo JOSEPSON, Nikola CVETANOVIC, Bratislav OBRADOVIČ a Pavel DVOŘÁK. Electric field development in gamma-mode radiofrequency atmospheric pressure glow discharge in helium. Plasma Sources Science and Technology. BRISTOL: IOP Pub., 2016, roč. 25, č. 3, s. "nestrankovano", 6 s. ISSN 0963-0252. Dostupné z: https://dx.doi.org/10.1088/0963-0252/25/3/03LT01. |
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@article{1340948,
author = {Navrátil, Zdeněk and Josepson, Raavo and Cvetanovic, Nikola and Obradovič, Bratislav and Dvořák, Pavel},
article_location = {BRISTOL},
article_number = {3},
doi = {http://dx.doi.org/10.1088/0963-0252/25/3/03LT01},
keywords = {radiofrequency discharge;atmospheric pressure;electric field;helium},
language = {eng},
issn = {0963-0252},
journal = {Plasma Sources Science and Technology},
title = {Electric field development in gamma-mode radiofrequency atmospheric pressure glow discharge in helium},
url = {http://iopscience.iop.org/article/10.1088/0963-0252/25/3/03LT01},
volume = {25},
year = {2016}
}
TY - JOUR
ID - 1340948
AU - Navrátil, Zdeněk - Josepson, Raavo - Cvetanovic, Nikola - Obradovič, Bratislav - Dvořák, Pavel
PY - 2016
TI - Electric field development in gamma-mode radiofrequency atmospheric pressure glow discharge in helium
JF - Plasma Sources Science and Technology
VL - 25
IS - 3
SP - "nestrankovano"
EP - "nestrankovano"
PB - IOP Pub.
SN - 09630252
KW - radiofrequency discharge;atmospheric pressure;electric field;helium
UR - http://iopscience.iop.org/article/10.1088/0963-0252/25/3/03LT01
N2 - Time development of electric field strength during radio-frequency sheath formation was measured using Stark polarization spectroscopy in a helium gamma-mode radio-frequency (RF, 13.56 MHz) atmospheric pressure glow discharge at high current density (3 A cm-2). A method of time-correlated single photon counting was applied to record the temporal development of spectral profile of He I 492.2 nm line with a sub-nanosecond temporal resolution. By fitting the measured profile of the line with a combination of pseudo-Voigt profiles for forbidden (2 1P-4 1F) and allowed (2 1P-4 1D) helium lines, instantaneous electric fields up to 32 kV cm-1 were measured in the RF sheath. The measured electric field is in agreement with the spatially averaged value of 40 kV cm-1 estimated from homogeneous charge density RF sheath model. The observed rectangular waveform of the electric field time development is attributed to increased sheath conductivity by the strong electron avalanches occurring in the gamma-mode sheath at high current densities.
ER -
NAVRÁTIL, Zdeněk, Raavo JOSEPSON, Nikola CVETANOVIC, Bratislav OBRADOVIČ a Pavel DVOŘÁK. Electric field development in gamma-mode radiofrequency atmospheric pressure glow discharge in helium. \textit{Plasma Sources Science and Technology}. BRISTOL: IOP Pub., 2016, roč.~25, č.~3, s.~''nestrankovano'', 6 s. ISSN~0963-0252. Dostupné z: https://dx.doi.org/10.1088/0963-0252/25/3/03LT01.
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