Effect of a floating electrode on a plasma jet
Hu, J. T., Wang, J. G., Liu, X. Y., Liu, D. W., Lu, X. P., Shi, J. J., & Ostrikov, K. (2013) Effect of a floating electrode on a plasma jet. Physics of Plasmas, 20(8), 083516.
Two kinds of floating electrode, floating dielectric barrier covered electrode (FDBCE) and floating pin electrode (FPE), which can enhance the performance of plasma jet are reported. The intense discharge between the floating electrode and power electrode decreased the voltage to trigger the plasma jet substantially. The transition of plasma bullet from ring shape to disk shape in the high helium concentration region happened when the floating electrode was totally inside the powered ring electrode. The enhanced electric field between propagating plasma bullet and ground electrode is the reason for this transition. The double plasma bullets happened when part of the FDBCE was outside the powered ring electrode, which is attributed to the structure and surface charge of FDBCE. As part of the FPE was outside the powered ring electrode, the return stroke resulted in a single intensified plasma channel between FPE and ground electrode.
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|Item Type:||Journal Article|
|Keywords:||electrodes, helium, plasma jets, plasma sources, surface discharges, Plasma devices, Electric discharges, Plasma dynamics and flow, Plasma sources|
|Divisions:||Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > QUT Faculties and Divisions > Science & Engineering Faculty
|Copyright Owner:||Copyright 2013 AIP Publishing LLC|
|Deposited On:||04 Aug 2014 23:49|
|Last Modified:||06 Aug 2014 00:08|
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