Informace o publikaci

High-Speed Visualization of Filament Instabilities and Self-Organization Effect in RF Argon Plasma Jet at Atmospheric Pressure

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SCHÄFER Jan ŠPERKA Jiří GOTT Gregor ZAJÍČKOVÁ Lenka RUDIGER Foest

Rok publikování 2014
Druh Článek v odborném periodiku
Časopis / Zdroj IEEE TRANSACTIONS ON PLASMA SCIENCE
Fakulta / Pracoviště MU

Přírodovědecká fakulta

Citace
www http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6805202
Doi http://dx.doi.org/10.1109/TPS.2014.2316375
Obor Fyzika plazmatu a výboje v plynech
Klíčová slova cameras;filamentation instability;plasma diagnostics;plasma jets;stroboscopes
Přiložené soubory
Popis An RF argon plasma jet has been explored using high-speed camera imaging at 10000 frames/s. Small variations of gas flow and/or RF power lead to instabilities of the filament movement. Two types of instabilities have been observed depending on the interrelated azimuthal velocities of filaments. In the case of antiparallel filament velocities, one filament is collapsing and fuses with the other filament, while the collapsing filament exhibits a striated structure. In the case of parallel velocities, both filaments establish a symmetric configuration and rotate with constant velocity in the jet. Spatially and temporally resolved features are visualized with a time-colored stroboscopic image.
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