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Title: Spatio-temporal characteristics of self-pulse in hollow cathode discharge

The characteristics of self-pulse in hollow cathode discharge at low pressure have been investigated. The voltage-current (V-I) curves, the influence of ballast resistor on the self-pulses, and the evolution of current and voltage are measured. Both the axial and radial spatio-temporal discharge images of self-pulse are recorded. The results show that there exists the hysteresis effect in the present hollow cathode discharge. The high value of ballast resistors is favourable for the observation of self-pulses. The process of the self-pulse can be divided into three stages from the temporal discharge images, i.e., the pre-discharge, the transition from mainly axial electric field to mainly radial electric field, and the decaying process. The self-pulse is suggested to originate from the mode transition of the discharge in essence.
Authors:
 [1] ;  [2]
  1. Institute of Science, Hebei Agriculture University, Baoding (China)
  2. College of Physics Science and Technology, Hebei University, Baoding (China)
Publication Date:
OSTI Identifier:
22408059
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 22; Journal Issue: 2; Other Information: (c) 2015 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; ELECTRIC CURRENTS; ELECTRIC DISCHARGES; ELECTRIC FIELDS; ELECTRIC POTENTIAL; HOLLOW CATHODES; HYSTERESIS; IMAGES; PRESSURE RANGE KILO PA; PULSES; RESISTORS; SPACE DEPENDENCE; TIME DEPENDENCE