Electrical characteristics and formation mechanism of atmospheric pressure plasma jet

Journal Article · Mon Jun 16 00:00:00 EDT 2014 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4884939· OSTI ID:22299935

Liu, Lijuan; Zhang, Yu; Tian, Weijing; Meng, Ying; Ouyang, Jiting ^[1]

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1. School of Physics, Beijing Institute of Technology, Beijing 100081 (China)

The behavior of atmospheric pressure plasma jet produced by a coplanar dielectric barrier discharge in helium in external electrostatic and magnetic field is investigated. Net negative charges in the plasma jet outside the tube were detected. The deflection of the plume in the external field was observed. The plasma jet is suggested to be formed by the electron beam from the temporal cathode which is accelerated by a longitudinal field induced by the surface charges on the dielectric tube or interface between the helium and ambient air. The helium flow is necessary for the jet formation in the surrounding air.

• OSTI ID: 22299935
• Journal Information: Applied Physics Letters, Vol. 104, Issue 24; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ATMOSPHERIC PRESSURE
CATHODES
DIELECTRIC MATERIALS
DIFFUSION BARRIERS
ELECTRON BEAMS
HELIUM
INTERFACES
MAGNETIC FIELDS
PLASMA JETS
SURFACES