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Title: Experimental Study of Dust Acoustic Waves in the Strongly Correlated Regime

Abstract

Low frequency dust acoustic waves (DAW) were excited in a laboratory argon dusty plasma by modulating the discharge voltage with a low frequency AC signal. Metallic graphite particles were used as dust grains and a digital FFT technique was used to obtain dispersion characteristics. The experimental dispersion relation shows the reduction of phase velocity and a regime where {partial_derivative}{omega}/{partial_derivative}k < 0. A comparison is made with existing theoretical model.

Authors:
; ;  [1]
  1. Institute for Plasma Research, Bhat, Gandhinagar-382428 (India)
Publication Date:
OSTI Identifier:
20726731
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 799; Journal Issue: 1; Conference: 4. international conference on the physics of dusty plasmas, Orleans (France), 13-17 Jun 2005; Other Information: DOI: 10.1063/1.2134584; (c) 2005 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ARGON; COMPARATIVE EVALUATIONS; DISPERSION RELATIONS; DUSTS; ELECTRIC POTENTIAL; GRAPHITE; PARTICLES; PHASE VELOCITY; PLASMA; PLASMA WAVES; SOUND WAVES

Citation Formats

Bandyopadhyay, P., Prasad, G., and Sen, A.. Experimental Study of Dust Acoustic Waves in the Strongly Correlated Regime. United States: N. p., 2005. Web. doi:10.1063/1.2134584.
Bandyopadhyay, P., Prasad, G., & Sen, A.. Experimental Study of Dust Acoustic Waves in the Strongly Correlated Regime. United States. doi:10.1063/1.2134584.
Bandyopadhyay, P., Prasad, G., and Sen, A.. Mon . "Experimental Study of Dust Acoustic Waves in the Strongly Correlated Regime". United States. doi:10.1063/1.2134584.
@article{osti_20726731,
title = {Experimental Study of Dust Acoustic Waves in the Strongly Correlated Regime},
author = {Bandyopadhyay, P. and Prasad, G. and Sen, A.},
abstractNote = {Low frequency dust acoustic waves (DAW) were excited in a laboratory argon dusty plasma by modulating the discharge voltage with a low frequency AC signal. Metallic graphite particles were used as dust grains and a digital FFT technique was used to obtain dispersion characteristics. The experimental dispersion relation shows the reduction of phase velocity and a regime where {partial_derivative}{omega}/{partial_derivative}k < 0. A comparison is made with existing theoretical model.},
doi = {10.1063/1.2134584},
journal = {AIP Conference Proceedings},
number = 1,
volume = 799,
place = {United States},
year = {Mon Oct 31 00:00:00 EST 2005},
month = {Mon Oct 31 00:00:00 EST 2005}
}