skip to main content

SciTech ConnectSciTech Connect

Title: Spatio-temporal characteristics of Trichel pulse at low pressure

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.
Authors:
 [1] ;  [2]
  1. College of Physics Science and Technology, Hebei University, Baoding (China)
  2. Institute of Science, Hebei Agriculture University, Baoding (China)
Publication Date:
OSTI Identifier:
22252126
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 21; Journal Issue: 1; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ANODES; BREAKDOWN; CAPACITANCE; CATHODES; ELECTRIC CURRENTS; ELECTRIC POTENTIAL; EMISSION SPECTRA; NITROGEN; PULSE RISE TIME; PULSES