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Dust interferometers in plasmas

Chaudhuri, M. and Nosenko, V. and Thomas, Hubertus (2016) Dust interferometers in plasmas. Physical Review E, 93, 031201-1. American Physical Society. DOI: 10.1103/PhysRevE.93.031201 ISSN 1539-3755

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Official URL: http://journals.aps.org/pre/abstract/10.1103/PhysRevE.93.031201


An interferometric imaging technique has been proposed to instantly measure the diameter of individual spherical dust particles suspended in a gas discharge plasma. The technique is based on the defocused Image analysis of both spherical particles and their binary agglomerates. Above a critical diameter, the defocused images of spherical particles contain stationary interference fringe patterns and the fringe number increases with particle diameters. Below this critical diameter, the particle size has been measured using the rotational interference fringe patterns which appear only on the defocused images of binary agglomerates. In this case, a lower cutoff limit of particle diameter has been predicted, below which no such rotational fringe patterns are observed for the binary agglomerates. The method can be useful as a diagnostics for complex plasma experiments on earth as well as under microgravity conditions.

Item URL in elib:https://elib.dlr.de/105584/
Document Type:Article
Title:Dust interferometers in plasmas
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Chaudhuri, M.Harvard UniversityUNSPECIFIED
Nosenko, V.v.nosenko (at) dlr.deUNSPECIFIED
Thomas, HubertusDLR Research Group Complex Plasma, OberpfaffenhofenUNSPECIFIED
Journal or Publication Title:Physical Review E
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
DOI :10.1103/PhysRevE.93.031201
Page Range:031201-1
Publisher:American Physical Society
Keywords:complex plasma, defocused imaging, particle sizing
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Research under Space Conditions
DLR - Research area:Raumfahrt
DLR - Program:R FR - Forschung unter Weltraumbedingungen
DLR - Research theme (Project):R - Komplexe Plasmen / Laboratory research
Location: Oberpfaffenhofen
Institutes and Institutions:Research Group Complex Plasma
Deposited By: Nosenko, Volodymyr
Deposited On:08 Aug 2016 11:44
Last Modified:18 Nov 2020 04:23

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