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Production and characterization of micron-sized filaments of solid argon

Grams, Michael and Stasicki, Boleslaw and Toennies, J. Peter (2005) Production and characterization of micron-sized filaments of solid argon. Scientific Instruments, Vol. 76 (12/123904), 123904-1-123904-9. DOI: 10.1063/1.2135277. ISSN 00346748.

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Abstract

A continuous 50-µm-diam filament of solid argon is produced in a moderate vacuum (4.2×10<sup>–3</sup> mbar) by cooling argon gas to 70–90 K over the last 8 mm of a long fused silica capillary. Prior to formation of the straight filament the jet shows different stages characterized by spraying, snowballing, or spiraling filaments as documented by charge-coupled device (CCD) camera microscope pictures. Consecutive CCD pictures are used to measure the filament velocities, which increase with the driving gas pressure P<sub>0</sub> up to about 4.0 cm/s at P<sub>0</sub> = 400 bars with an intermediate peak at about 80 bars. This technique may find applications for producing wall-less cryogenic matrices, targets for laser plasma sources of extreme UV and soft-x-ray sources, plasma implosion experiments, or H<sub>2</sub> pellets for injection into fusion reactors.

Document Type:Article
Additional Information: LIDO-Berichtsjahr=2006, published online 21 December 2005
Title:Production and characterization of micron-sized filaments of solid argon
Authors:
AuthorsInstitution or Email of Authors
Grams, Michael Arizona State University, USA
Stasicki, BoleslawUNSPECIFIED
Toennies, J. PeterMax-Planck-Institut für Dynamik und Selbstorganisation, Bunsenstraße 10, 37073 Göttingen, Germany
Date:December 2005
Journal or Publication Title:Scientific Instruments
Refereed publication:Yes
In ISI Web of Science:Yes
Volume:Vol. 76
DOI:10.1063/1.2135277
Page Range:123904-1-123904-9
Editors:
EditorsEmail
American Institute of Physics, UNSPECIFIED
ISSN:00346748
Status:Published
Keywords:plasma implosion experiments, camera microscope pictures
Institution:MPI
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Flight Physics
Location: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Experimental Methods
Deposited By: Ilka Micknaus
Deposited On:29 Jun 2006
Last Modified:27 Apr 2009 04:56

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