Schwabe, Mierk und Thomas, Hubertus (2015) Complex plasmas under microgravity. In: 4th International Workshop on Diagnostics and Simulation of Dusty Plasmas. 4th International Workshop on Diagnostics and Simulation of Dusty Plasmas, 2015-09-09 - 2015-09-11, Kiel, Germany.
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Kurzfassung
Complex plasmas consist of micrometer-sized particles embedded in a low temperature plasma. Gravity is one of the strongest forces acting on the microparticles and pulls the particles towards the lower sheath edge. In order to perform experiments in the plasma bulk, gravity has to be compensated for (e.g., by thermophoresis [1]), or experiments need to be performed in weightlessness. Weightlessness can be achieved by dropping the experimental setup, either in a drop tower, inside a plane during a parabolic flight, inside a rocket on a parabolic trajectory, or in orbit around Earth (typically using the International Space Station). All of these options have distinct advantages and disadvantages. When weightless, the complex plasma fills a bigger region of the plasma chamber. Nevertheless, new phenomena appear, for instance, a central, particle-free void is formed that is caused by the ions pushing the particles away from the center of the plasma chamber [2]. Despite these complications, weightless complex plasmas offer the possibility to study many fascinating phenomena that are not easily accessible on ground – for instance, three-dimensional crystallization [3], wave formation and propagation [4], and vortices [5]. [1] H. Rothermel et al., Phys. Rev. Lett. 89, 175001 (2002) [2] A. Nefedov et al., New J. Phys. 5, 33 (2003); G. E. Morfill et al., Phys. Rev. Lett. 83, 1598 (1999). [3] e.g., S. Khrapak et al., Phys. Rev. Lett. 106, 205001 (2011) [4] e.g., M. Himpel et al., Phys. Plasmas 21, 033703 (2014) [5] e.g., T. Bockwoldt et al, Phys. Plasmas 21, 103703 (2014)
elib-URL des Eintrags: | https://elib.dlr.de/99543/ | ||||||||||||
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Dokumentart: | Konferenzbeitrag (Vorlesung) | ||||||||||||
Titel: | Complex plasmas under microgravity | ||||||||||||
Autoren: |
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Datum: | 10 September 2015 | ||||||||||||
Erschienen in: | 4th International Workshop on Diagnostics and Simulation of Dusty Plasmas | ||||||||||||
Referierte Publikation: | Nein | ||||||||||||
Open Access: | Ja | ||||||||||||
Gold Open Access: | Nein | ||||||||||||
In SCOPUS: | Nein | ||||||||||||
In ISI Web of Science: | Nein | ||||||||||||
Status: | veröffentlicht | ||||||||||||
Stichwörter: | complex plasma, dusty plasma, microgravity, weightlessness | ||||||||||||
Veranstaltungstitel: | 4th International Workshop on Diagnostics and Simulation of Dusty Plasmas | ||||||||||||
Veranstaltungsort: | Kiel, Germany | ||||||||||||
Veranstaltungsart: | Workshop | ||||||||||||
Veranstaltungsbeginn: | 9 September 2015 | ||||||||||||
Veranstaltungsende: | 11 September 2015 | ||||||||||||
HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||
HGF - Programm: | Raumfahrt | ||||||||||||
HGF - Programmthema: | Forschung unter Weltraumbedingungen | ||||||||||||
DLR - Schwerpunkt: | Raumfahrt | ||||||||||||
DLR - Forschungsgebiet: | R FR - Forschung unter Weltraumbedingungen | ||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | R - Komplexe Plasmen / Schwerelosigkeit (alt) | ||||||||||||
Standort: | Oberpfaffenhofen | ||||||||||||
Institute & Einrichtungen: | Forschungsgruppe Komplexe Plasmen | ||||||||||||
Hinterlegt von: | Schwabe, Dr. Mierk | ||||||||||||
Hinterlegt am: | 26 Nov 2015 10:19 | ||||||||||||
Letzte Änderung: | 24 Apr 2024 20:04 |
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