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New Large Diameter RF Complex Plasma Device

Meyer, John and Nosenko, V. and Thomas, H. (2016) New Large Diameter RF Complex Plasma Device. American Physical Society Division of Plasma Physics meeting 2016, 31 Oct - 4 Nov 2016, San Jose California.

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The Complex Plasma Research Group at the German Aerospace Center (DLR) in Oberpfaffenhofen has built a new large diameter rf plasma setup for dusty plasma experiments. The vacuum chamber is a stainless steel cylinder 0.90 m in diameter and 0.34 m in height with ports for viewing and measurement. A 0.85 m diameter plate in about the center serves as a powered electrode (13.56 MHz) with the chamber walls as the ground. It is pumped on by one of two Oerlikon turbo pumps with a pumping rate of 1100 l/s or 270 l/s. Argon gas is admitted into the chamber by an MKS mass flow meter and pumping is regulated by a butterfly valve to set pressure for experiments. A manual dropper is used to insert dust into the plasma. The dust is illuminated horizontally by a 660 nm 100 mW laser sheet and viewed from above by a Photron FASTCAM 1024 PCI camera. A vertical laser sheet of 635 nm will be used for side imaging. So far, single-layer plasma crystals of up to 15000 particles have been suspended. The particle velocity fluctuation spectra were measured and from these, the particle charge and screening length were calculated. Future experiments will explore the system-size dependence of the plasma crystal properties.

Item URL in elib:https://elib.dlr.de/109461/
Document Type:Conference or Workshop Item (Lecture)
Title:New Large Diameter RF Complex Plasma Device
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Meyer, JohnJohn.Meyer (at) dlr.deUNSPECIFIED
Nosenko, V.v.nosenko (at) dlr.deUNSPECIFIED
Thomas, H.hubertus.thomas (at) dlr.deUNSPECIFIED
Date:31 October 2016
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Keywords:komplex Plasma
Event Title:American Physical Society Division of Plasma Physics meeting 2016
Event Location:San Jose California
Event Type:international Conference
Event Dates:31 Oct - 4 Nov 2016
Organizer:American Physical Society
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: Meyer, John
Deposited On:13 Dec 2016 10:26
Last Modified:31 Jul 2019 20:06

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