Spatio-temporal characteristics of Trichel pulse at low pressure

Journal Article · Wed Jan 15 04:00:00 EST 2014 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4863424· OSTI ID:22252126

He, Shoujie ^[1]; Jing, Ha ^[2]

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1. College of Physics Science and Technology, Hebei University, Baoding (China)
2. Institute of Science, Hebei Agriculture University, Baoding (China)

Trichel pulses are investigated using a needle-to-plane electrode geometry at low pressure. The evolution of current and voltage, the spatio-temporal discharge images of Trichel pulse are measured. The rising time and duration time in a pulse are about 10 μs and several tens of microseconds, respectively. One period of pulse can be divided into three stages: the stage preceding cathode breakdown, cathode glow formation, and discharge decaying process. Besides a cathode glow and a dark space, an anode glow is also observed. The emission spectra mainly originate from the C{sup 3}Π{sub u} → B{sup 3}Π{sub g} transition for nitrogen. In addition, the capacitances in parallel connected with the discharge cell have important influence on the pulsing frequency.

• OSTI ID: 22252126
• Journal Information: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 1 Vol. 21; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ANODES
BREAKDOWN
CAPACITANCE
CATHODES
ELECTRIC CURRENTS
ELECTRIC POTENTIAL
EMISSION SPECTRA
NITROGEN
PULSE RISE TIME
PULSES