NAVRÁTIL, Zdeněk, Raavo JOSEPSON, Nikola CVETANOVIC, Bratislav OBRADOVIČ and Pavel DVOŘÁK. ELECTRIC FIELD DEVELOPMENT IN gamma-MODE RF APGD IN HELIUM. In Cernak, M Hoder, T. HAKONE XV: INTERNATIONAL SYMPOSIUM ON HIGH PRESSURE LOW TEMPERATURE PLASMA CHEMISTRY: WITH JOINT COST TD1208 WORKSHOP: NON-EQUILIBRIUM PLASMAS WITH LIQUIDS FOR WATER AND SURFACE TREATMENT. BRNO: MASARYKOVA UNIVERZITA, 2016, p. 134-136. ISBN 978-80-210-8318-9.
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Basic information
Original name ELECTRIC FIELD DEVELOPMENT IN gamma-MODE RF APGD IN HELIUM
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 BRNO, HAKONE XV: INTERNATIONAL SYMPOSIUM ON HIGH PRESSURE LOW TEMPERATURE PLASMA CHEMISTRY: WITH JOINT COST TD1208 WORKSHOP: NON-EQUILIBRIUM PLASMAS WITH LIQUIDS FOR WATER AND SURFACE TREATMENT, p. 134-136, 3 pp. 2016.
Publisher MASARYKOVA UNIVERZITA
Other information
Original language English
Type of outcome Proceedings paper
Field of Study 10305 Fluids and plasma physics
Country of publisher Czech Republic
Confidentiality degree is not subject to a state or trade secret
Publication form printed version "print"
RIV identification code RIV/00216224:14310/16:00088754
Organization unit Faculty of Science
ISBN 978-80-210-8318-9
UT WoS 000393033200028
Keywords in English radiofrequency discharge; atmospheric pressure; helium; electric field; Stark effect
Tags AKR, rivok
Tags International impact, Reviewed
Changed by Changed by: doc. Mgr. Zdeněk Navrátil, Ph.D., učo 3323. Changed: 9/3/2017 12:17.
Abstract
Electric field strength in helium gamma-mode RF (13.56 MHz) atmospheric pressure glow discharge was measured using Stark polarization spectroscopy. 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. Electric fields up to 32 kV/cm in the RF sheath, obtained from the fit of forbidden (2 P-1 -4 F-1) and allowed (2 P-1 - 4 D-1) helium lines, are in agreement with the spatially averaged value of 40 kV/cm estimated from homogeneous charge density RF sheath model. The observed rectangular shape of the electric field time development is attributed to increased sheath conductivity by strong electron avalanches occurring in the gamma-mode sheath at high current densities.
Links
ED2.1.00/03.0086, research and development projectName: Regionální VaV centrum pro nízkonákladové plazmové a nanotechnologické povrchové úpravy
GA13-24635S, research and development projectName: Spektroskopické studium rekombinace povrchového náboje v dielektrických bariérových výbojích
Investor: Czech Science Foundation
LO1411, research and development projectName: Rozvoj centra pro nízkonákladové plazmové a nanotechnologické povrchové úpravy (Acronym: CEPLANT plus)
Investor: Ministry of Education, Youth and Sports of the CR
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