Anomalous dust temperature in dusty plasma experiments

Avinash, K. ; Merlino, R. L. ; Shukla, P. K. (2011) Anomalous dust temperature in dusty plasma experiments Physics Letters A, 375 (30-31). pp. 2854-2857. ISSN 0375-9601

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Official URL: http://www.sciencedirect.com/science/article/pii/S...

Related URL: http://dx.doi.org/10.1016/j.physleta.2011.06.009

Abstract

Dust heating in dusty plasmas due to thermal electric field fluctuations and dust acoustic waves is examined. It is shown that dust particles acquire large random motion in fluctuating electric fields (within dust cloud) of background plasma causing dust electrostatic pressure PE [K. Avinash, Phys. Plasmas 13 (2006) 012109] and corresponding large temperature TE. Due to quadratic dependence on qd and high dust charge (∼ 103–104e), TE is much bigger than the dust kinetic temperature Td and is in the range of 10–300 eV for typical experimental numbers. Using global energy constraints dust heating due to dust acoustic waves is examined. It is shown that dust acoustic waves are potentially capable of heating dust to high temperatures in the range of a few hundreds of eV.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
ID Code:102845
Deposited On:09 Mar 2018 10:43
Last Modified:09 Mar 2018 10:43

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