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Title: Sustenance of inhomogeneous electron temperature in a magnetized plasma column

This paper presents the equilibrium properties of a magnetized plasma column sustained by direct-current (dc) operated hollow cathode discharge in conjunction with a conducting end-plate, acting as the anode. The survey of radial plasma characteristics, performed in argon plasma, shows hotter plasma in the periphery as compared to the central plasma region; whereas the plasma density peaks at the center. The off-centered peak in radial temperature is attributed due to inhomogeneous power deposition in the discharge volume in conjunction with short-circuiting effect by the conducting end plate. A theoretical model based on particle flux and energy balance is given to explain the observed characteristics of the plasma column.
Authors:
; ;  [1]
  1. Institute for Plasma Research, Gandhinagar 382428 (India)
Publication Date:
OSTI Identifier:
22490130
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 22; Journal Issue: 9; 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; ANODES; ARGON; DIRECT CURRENT; ELECTRICAL FAULTS; ELECTRON TEMPERATURE; ENERGY ABSORPTION; ENERGY BALANCE; EQUILIBRIUM; HOLLOW CATHODES; MAGNETIZATION; PLASMA DENSITY