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Title: Hysteresis in amplitudes of self-excited oscillations for co-axial electrode-geometry DC glow discharge plasma

Hysteresis in amplitudes of the self-excited oscillations of the floating potential and discharge current is observed in an unmagnetized co-axial electrode-geometry DC glow discharge plasma system. The nonlinearities of these oscillations are studied using standard dynamical analysis tools. The characterization revealed the transition of low-amplitude high-frequency period-n oscillations to a large amplitude low frequency period-1 oscillations through a chaotic intermediate route. The transition of the low amplitude, high frequency period-n oscillations to chaotic type is observed to be linked to the dynamical change in the plasma system, i.e., after a negative differential resistance (NDR) region, whereas the transition from chaotic to period-1 is observed to be linked to a discharge current threshold.
Authors:
 [1] ;  [2] ;  [3]
  1. Department of Physics, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016 (India)
  2. Centre for Energy Studies, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016 (India)
  3. Department of Physics and Astrophysics, University of Delhi, Delhi 110007 (India)
Publication Date:
OSTI Identifier:
22407946
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 21; Journal Issue: 12; 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; AMPLITUDES; CHAOS THEORY; ELECTRODES; GEOMETRY; GLOW DISCHARGES; HYSTERESIS; NONLINEAR PROBLEMS; OSCILLATIONS; PLASMA