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

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F14%3A00077271" target="_blank" >RIV/00216224:14310/14:00077271 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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]). Onlythe 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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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]). Onlythe 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.

Druh

O - Ostatní výsledky

CEP obor

BL - Fyzika plasmatu a výboje v plynech

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů