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Pulsed RF-Discharge in Zyflex-Chamber

Huber, Peter and Knapek, Christina and Mohr, Daniel P. and Zähringer, Erich and Thomas, Hubertus M. (2017) Pulsed RF-Discharge in Zyflex-Chamber. 8th International Conference on the Physics of Dusty Plasmas, 20.-25. Mai 2017, Prag, Tschechien. (Unpublished)

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Interrupting rf-discharge is a well known method to control processes in plasmas. For example in semiconductor processing, it can be used to control growth of particles from material out of the plasma phase. By switching of the discharge, grown "fog" can be driven out of the plasma by gravity. [2] On the other hand, pulsing the plasma gives a good possibility to tune effective electron temperature independently from plasma density. This way you could tune parameters in complex plasma systems like electron density, electron temperature, screening length and particle charge in a more flexible way. Ekoplasma is a project designing the future lab for complex plasma research on the inter- national space station ISS. Together with its large cylindrical chamber Zyflex it will have many features to cover a wide range of physics in complex plasma research, now to be tested in lab and on parabolic flights. It also includes a multifunctional rf-generator which can be pulsed at different frequencies with on/off times even down to 50 µs. Combining this switching features with micro gravity conditions it will be possible to tune plasma parameters without loosing particles due to gravity pushing the particles. In this contribution, we show the plasma pulsing feature of the current lab setup of EkoPlasma and some first results from lab experiments.

Item URL in elib:https://elib.dlr.de/112813/
Document Type:Conference or Workshop Item (Poster)
Title:Pulsed RF-Discharge in Zyflex-Chamber
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Knapek, ChristinaUNSPECIFIEDhttps://orcid.org/0000-0001-7105-627XUNSPECIFIED
Mohr, Daniel P.DLR German Aerospace Center, Institute of Materials Physics in Space, Group Complex Plasma, Wessling, GermanyUNSPECIFIEDUNSPECIFIED
Zähringer, ErichUNSPECIFIEDhttps://orcid.org/0000-0003-4718-5447UNSPECIFIED
Thomas, Hubertus M.UNSPECIFIEDhttps://orcid.org/0000-0001-8358-2023UNSPECIFIED
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:pulsed plasma, discharge
Event Title:8th International Conference on the Physics of Dusty Plasmas
Event Location:Prag, Tschechien
Event Type:international Conference
Event Dates:20.-25. Mai 2017
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 - Research under Space Conditions
DLR - Research theme (Project):R - Komplexe Plasmen / Zero gravity (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Materials Physics in Space > Research Group Complex Plasma
Deposited By: Huber, Peter
Deposited On:27 Oct 2017 11:24
Last Modified:29 Mar 2023 00:32

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