TY - JOUR
T1 - Pure air-plasma bullets propagating inside microcapillaries and in ambient air
AU - Lacoste, Deanna A.
AU - Bourdon, Anne
AU - Kuribara, Koichi
AU - Urabe, Keiichiro
AU - Stauss, Sven
AU - Terashima, Kazuo
N1 - Publisher Copyright:
© 2014 IOP Publishing Ltd.
PY - 2014/12/1
Y1 - 2014/12/1
N2 - This paper reports on the characterization of air-plasma bullets in microcapillary tubes and in ambient air, obtained without the use of inert or noble gases. The bullets were produced by nanosecond repetitively pulsed discharges, applied in a dielectric barrier discharge configuration. The anode was a tungsten wire with a diameter of 50 μm, centered in the microcapillary, while the cathode was a silver ring, fixed on the outer surface of the fused silica tube. The effects of the applied voltage and the inner diameter of the microcapillary tube on the plasma behavior were investigated. Inside the tubes, while the topology of the bullets seems to be strongly dependent on the diameter, their velocity is only a function of the amplitude of the applied voltage. In ambient air, the propagation of air bullets with a velocity of about 1.25 ×105 m s-1 is observed.
AB - This paper reports on the characterization of air-plasma bullets in microcapillary tubes and in ambient air, obtained without the use of inert or noble gases. The bullets were produced by nanosecond repetitively pulsed discharges, applied in a dielectric barrier discharge configuration. The anode was a tungsten wire with a diameter of 50 μm, centered in the microcapillary, while the cathode was a silver ring, fixed on the outer surface of the fused silica tube. The effects of the applied voltage and the inner diameter of the microcapillary tube on the plasma behavior were investigated. Inside the tubes, while the topology of the bullets seems to be strongly dependent on the diameter, their velocity is only a function of the amplitude of the applied voltage. In ambient air, the propagation of air bullets with a velocity of about 1.25 ×105 m s-1 is observed.
KW - atmospheric pressure
KW - dielectric barrier discharge
KW - nanosecond discharges
KW - plasma jet
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U2 - 10.1088/0963-0252/23/6/062006
DO - 10.1088/0963-0252/23/6/062006
M3 - Article
AN - SCOPUS:84915747544
VL - 23
JO - Plasma Sources Science and Technology
JF - Plasma Sources Science and Technology
SN - 0963-0252
IS - 6
M1 - 062006
ER -