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Title: Effect of argon addition on plasma parameters and dust charging in hydrogen plasma

Experimental results on effect of adding argon gas to hydrogen plasma in a multi-cusp dusty plasma device are reported. Addition of argon modifies plasma density, electron temperature, degree of hydrogen dissociation, dust current as well as dust charge. From the dust charging profile, it is observed that the dust current and dust charge decrease significantly up to 40% addition of argon flow rate in hydrogen plasma. But beyond 40% of argon flow rate, the changes in dust current and dust charge are insignificant. Results show that the addition of argon to hydrogen plasma in a dusty plasma device can be used as a tool to control the dust charging in a low pressure dusty plasma.
Authors:
; ;  [1] ; ;  [2]
  1. Centre of Plasma Physics-Institute for Plasma Research, Nazirakhat, Sonapur, Kamrup 782402, Assam (India)
  2. Institute for Plasma Research, Bhat, Gandhinagar 382 428 (India)
Publication Date:
OSTI Identifier:
22308136
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 116; Journal Issue: 16; 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; ARGON IONS; CURRENTS; CUSPED GEOMETRIES; DISSOCIATION; ELECTRON TEMPERATURE; FLOW RATE; HYDROGEN IONS; PLASMA DENSITY