Detailed Information on Publication Record
2016
Electric field development in gamma-mode radiofrequency atmospheric pressure glow discharge in helium
NAVRÁTIL, Zdeněk, Raavo JOSEPSON, Nikola CVETANOVIC, Bratislav OBRADOVIČ, Pavel DVOŘÁK et. al.Basic information
Original name
Electric field development in gamma-mode radiofrequency atmospheric pressure glow discharge in helium
Name in Czech
Vývoj elektrického pole v radiofrekvenčním výboji za atmosférického tlaku v gama-módu v heliu
Authors
NAVRÁTIL, Zdeněk (203 Czech Republic, guarantor, belonging to the institution), Raavo JOSEPSON (233 Estonia, belonging to the institution), Nikola CVETANOVIC (688 Serbia), Bratislav OBRADOVIČ (688 Serbia) and Pavel DVOŘÁK (203 Czech Republic, belonging to the institution)
Edition
Plasma Sources Science and Technology, BRISTOL, IOP Pub. 2016, 0963-0252
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10305 Fluids and plasma physics
Country of publisher
United Kingdom of Great Britain and Northern Ireland
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
Impact factor
Impact factor: 3.302
RIV identification code
RIV/00216224:14310/16:00087866
Organization unit
Faculty of Science
UT WoS
000376557400001
Keywords in English
radiofrequency discharge;atmospheric pressure;electric field;helium
Tags
International impact, Reviewed
Změněno: 13/3/2018 10:59, doc. Mgr. Zdeněk Navrátil, Ph.D.
Abstract
V originále
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.
Links
ED2.1.00/03.0086, research and development project |
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EE2.3.30.0009, research and development project |
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GA13-24635S, research and development project |
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LO1411, research and development project |
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