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dc.contributor.authorWestphal, Andrew J.
dc.contributor.authorSnead, Christopher
dc.contributor.authorBorg, Janet
dc.contributor.authorQuirico, Eric
dc.contributor.authorRaynal, Pierre-Ivan
dc.contributor.authorZolensky, Michael E.
dc.contributor.authorFerrini, Gianluca
dc.contributor.authorColangeli, Luigi
dc.contributor.authorPalumbo, Pasquale
dc.date.accessioned2021-02-12T20:55:37Z
dc.date.available2021-02-12T20:55:37Z
dc.date.issued2002-01-01
dc.identifier.citationWestphal, A. J., Snead, C., Borg, J., Quirico, E., Raynal, P.-I., Zolensky, M. E., ... & Palumbo, P. (2002). Small hypervelocity particles captured in aerogel collectors: Location, extraction, handling and storage. Meteoritics & Planetary Science, 37(6), 855-865.
dc.identifier.issn1945-5100
dc.identifier.doi10.1111/j.1945-5100.2002.tb00860.x
dc.identifier.urihttp://hdl.handle.net/10150/655535
dc.description.abstractIt has now been about a decade since the first demonstrations that hypervelocity particles could be captured, partially intact, in aerogel collectors. But the initial promise of a bonanza of partially-intact extraterrestrial particles, collected in space, has yet to materialize. One of the difficulties that investigators have encountered is that the location, extraction, handling and analysis of very small (10 micrometers and less) grains, which constitute the vast majority of the captured particles, is challenging and burdensome. Furthermore, current extraction techniques tend to be destructive over large areas of the collectors. Here we describe our efforts to alleviate some of these difficulties. We have learned how to rapidly and efficiently locate captured particles in aerogel collectors, using an automated microscopic scanning system originally developed for experimental nuclear astrophysics. We have learned how to precisely excavate small access tunnels and trenches using an automated micromanipulator and glass microneedles as tools. These excavations are only destructive to the collector in a very small area-this feature may be particularly important for excavations in the precious Stardust collectors. Using actuatable silicon microtweezers, we have learned how to extract and store "naked" particles--essentially free of aerogel--as small as 3 m in size. We have also developed a technique for extracting particles, along with their terminal tracks, still embedded in small cubical aerogel blocks. We have developed a novel method for storing very small particles in etched nuclear tracks. We have applied these techniques to the extraction and storage of grains captured in aerogel collectors (Particle Impact Experiment, Orbital Debris Collector Experiment, Comet-99) in low Earth orbit.
dc.language.isoen
dc.publisherThe Meteoritical Society
dc.relation.urlhttps://meteoritical.org/
dc.rightsCopyright © The Meteoritical Society
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.subjecthypervelocity
dc.subjectaerogel
dc.subjectextraterrestrial
dc.titleSmall hypervelocity particles captured in aerogel collectors: Location, extraction, handling and storage
dc.typeArticle
dc.typetext
dc.identifier.journalMeteoritics & Planetary Science
dc.description.collectioninformationThe Meteoritics & Planetary Science archives are made available by the Meteoritical Society and the University of Arizona Libraries. Contact lbry-journals@email.arizona.edu for further information.
dc.eprint.versionFinal published version
dc.description.admin-noteMigrated from OJS platform February 2021
dc.source.volume37
dc.source.issue6
dc.source.beginpage855
dc.source.endpage865
refterms.dateFOA2021-02-12T20:55:37Z


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