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Article Dans Une Revue Plasma Sources Science and Technology Année : 2014

Pure air–plasma bullets propagating inside microcapillaries and in ambient air

D.A. Lacoste
  • Fonction : Auteur
Anne Bourdon
Koichi Kuribara
  • Fonction : Auteur
Keiichiro Urabe
  • Fonction : Auteur
Sven Stauss
  • Fonction : Auteur
Kazuo Terashima
  • Fonction : Auteur

Résumé

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 50μm, 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 ms−1 is observed.

Dates et versions

hal-01549393 , version 1 (28-06-2017)

Identifiants

Citer

D.A. Lacoste, Anne Bourdon, Koichi Kuribara, Keiichiro Urabe, Sven Stauss, et al.. Pure air–plasma bullets propagating inside microcapillaries and in ambient air. Plasma Sources Science and Technology, 2014, 23, pp.062006. ⟨10.1088/0963-0252/23/6/062006⟩. ⟨hal-01549393⟩
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