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    Macroscopic subdivision of silica aerogel collectors for sample return missions

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    Author
    Ishii, H. A.
    Bradley, J. P.
    Issue Date
    2006-01-01
    Keywords
    trace elements
    chemical composition of comets
    cometary dust
    Stardust Mission
    
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    Citation
    Ishii, H. A., & Bradley, J. P. (2006). Macroscopic subdivision of silica aerogel collectors for sample return missions. Meteoritics & Planetary Science, 41(2), 233-236.
    Publisher
    The Meteoritical Society
    Journal
    Meteoritics & Planetary Science
    URI
    http://hdl.handle.net/10150/656699
    DOI
    10.1111/j.1945-5100.2006.tb00206.x
    Additional Links
    https://meteoritical.org/
    Abstract
    Silica aerogel collector tiles have been employed for the collection of particles in low Earth orbit and, more recently, for the capture of cometary particles by NASA's Stardust mission. Reliable, reproducible methods for cutting these and future collector tiles from sample return missions are necessary to maximize the science output from the extremely valuable embedded particles. We present a means of macroscopic subdivision of collector tiles by generating large-scale cuts over several centimeters in silica aerogel with almost no material loss. The cut surfaces are smooth and optically clear allowing visual location of particles for analysis and extraction. This capability is complementary to the smaller-scale cutting capabilities previously described (Westphal 2004; Ishii 2005a, 2005b) for removing individual impacts and particulate debris in tiny aerogel extractions. Macroscopic cuts enable division and storage or distribution of portions of aerogel tiles for immediate analysis of samples by certain techniques in situ or further extraction of samples suited for other methods of analysis. The capability has been implemented in the Stardust Laboratory at NASA's Johnson Space Center as one of a suite of aerogel cutting methods to be used in Stardust sample curation.
    Type
    Article
    text
    Language
    en
    ISSN
    1945-5100
    ae974a485f413a2113503eed53cd6c53
    10.1111/j.1945-5100.2006.tb00206.x
    Scopus Count
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    Meteoritics & Planetary Science, Volume 41, Number 2 (2006)

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