Non-thermal Atmospheric Pressure Plasma Jet Operated in Krypton
and Argon: Visual Characterisation of Discharge using
High-speed Camera

a 2014

Non-thermal Atmospheric Pressure Plasma Jet Operated in Krypton and Argon: Visual Characterisation of Discharge using High-speed Camera

ŠPERKA, Jiří, Jan SCHAFER, Jaroslav HNILICA, Vít KUDRLE, Gregor GOTT et. al.

Basic information

Original name

Non-thermal Atmospheric Pressure Plasma Jet Operated in Krypton and Argon: Visual Characterisation of Discharge using High-speed Camera

Authors

ŠPERKA, Jiří (203 Czech Republic, belonging to the institution), Jan SCHAFER (276 Germany), Jaroslav HNILICA (203 Czech Republic, belonging to the institution), Vít KUDRLE (203 Czech Republic, guarantor, belonging to the institution), Gregor GOTT (276 Germany) and Rudiger FOEST (276 Germany)

Edition

XXII Europhysics Conference on Atomic and Molecular Physics of Ionized Gases (ESCAMPIG), 2014

Other information

Language

English

Type of outcome

Konferenční abstrakt

Field of Study

10305 Fluids and plasma physics

Country of publisher

Germany

Confidentiality degree

není předmětem státního či obchodního tajemství

RIV identification code

RIV/00216224:14310/14:00077271

Organization unit

Faculty of Science

Keywords in English

filament instabilities; image processing; striations; bifurcations

Změněno: 28/12/2014 13:55, doc. Mgr. Jaroslav Hnilica, Ph.D.

Abstract

V originále

Plasma filament instabilities have been visualised using high-speed (HS) camera (REDLAKE MotionXtra HG-100K, repetition rate of 10 000 frames per second) in a radio-frequency (RF) capillary nonthermal atmospheric pressure plasma jet (ntAPPJ [1, 2]). Only the RF power (27.12 MHz, 14-90 W) and the gas flow have been varied; the outer capillary of the ntAPPJ has been fed with argon (flow rate between 600-1200 sccm), or with krypton (flow rate of 50-600 sccm). HS images are compared with long-exposure photographs of the active plasma zone (exposure time 6 ms, Panasonic Lumix FZ 100). This study reveals the wide variety of filamentary discharge structures present and describes the occurrence of striations, which occur mostly during transitions between stable modes (see mode diagram for krypton). Image processing has been used to unveil the complex behaviour of contracted filaments, both in time and space; particularly splitting of the laments. Moreover, other observed phenomena are highlighted, especially moving striations and bifurcations.

Links

ED1.1.00/02.0068, research and development project

Name: CEITEC - central european institute of technology

ED2.1.00/03.0086, research and development project

Name: Regionální VaV centrum pro nízkonákladové plazmové a nanotechnologické povrchové úpravy

7AMB12DE005, research and development project

Name: Samoorganizace a procesy strukturalizace v plazmochemické depozici tenkých vrstev

Investor: Ministry of Education, Youth and Sports of the CR

Citovat

ŠPERKA, Jiří, Jan SCHAFER, Jaroslav HNILICA, Vít KUDRLE, Gregor GOTT and Rudiger FOEST. Non-thermal Atmospheric Pressure Plasma Jet Operated in Krypton and Argon: Visual Characterisation of Discharge using High-speed Camera. In XXII Europhysics Conference on Atomic and Molecular Physics of Ionized Gases (ESCAMPIG). 2014.

@proceedings{1205737,
   author = {Šperka, Jiří and Schafer, Jan and Hnilica, Jaroslav and Kudrle, Vít and Gott, Gregor and Foest, Rudiger},
   booktitle = {XXII Europhysics Conference on Atomic and Molecular Physics of Ionized Gases (ESCAMPIG)},
   keywords = {filament instabilities; image processing; striations; bifurcations},
   language = {eng},
   title = {Non-thermal Atmospheric Pressure Plasma Jet Operated in Krypton and Argon: Visual Characterisation of Discharge using High-speed Camera},
   year = {2014}
}

TY  - CONF
ID  - 1205737
AU  - Šperka, Jiří - Schafer, Jan - Hnilica, Jaroslav - Kudrle, Vít - Gott, Gregor - Foest, Rudiger
PY  - 2014
TI  - Non-thermal Atmospheric Pressure Plasma Jet Operated in Krypton and Argon: Visual Characterisation of Discharge using High-speed Camera
KW  - filament instabilities
KW  - image processing
KW  - striations
KW  - bifurcations
N2  - Plasma filament instabilities have been visualised using high-speed (HS) camera (REDLAKE MotionXtra HG-100K, repetition rate of 10 000 frames per second) in a radio-frequency (RF) capillary nonthermal atmospheric pressure plasma jet (ntAPPJ [1, 2]). Only the RF power (27.12 MHz, 14-90 W) and the gas flow have been varied; the outer capillary of the ntAPPJ has been fed with argon (flow rate between 600-1200 sccm), or with krypton (flow rate of 50-600 sccm). HS images are compared with long-exposure photographs of the active plasma zone (exposure time 6 ms, Panasonic Lumix FZ 100). This study reveals the wide variety of filamentary discharge structures present and describes the occurrence of striations, which occur mostly during transitions between stable modes (see mode diagram for krypton). Image processing has been used to unveil the complex behaviour of contracted filaments, both in time and space; particularly splitting of the laments. Moreover, other observed phenomena are highlighted, especially moving striations and bifurcations.
ER  -

ŠPERKA, Jiří, Jan SCHAFER, Jaroslav HNILICA, Vít KUDRLE, Gregor GOTT and Rudiger FOEST. Non-thermal Atmospheric Pressure Plasma Jet Operated in Krypton and Argon: Visual Characterisation of Discharge using High-speed Camera. In \textit{XXII Europhysics Conference on Atomic and Molecular Physics of Ionized Gases (ESCAMPIG)}. 2014.

Detailed Information on Publication Record