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A Fluorescent Aerogel for Capture and Identification of Interplanetary and Interstellar DustAerogels are extremely low-density solids whose superiority as capturing media for hypervelocity (v > 0.5 km/s) grains has been well established. A prominent example is the use of silica aerogel as the collecting medium for cometary and interstellar grains on NASA s Stardust mission. Aerogel collectors have been deployed in low-earth orbit, but severe background from anthropogenic orbital debris has so far prevented the identification of more than a handful of interplanetary particles. No interstellar particles have been identified so far. Since they are on hyperbolic orbits, extraterrestrial particles are faster than orbital debris, so could in principle be identified on that basis, but existing aerogels give little information on impact velocity. With this in mind, we have developed a novel calorimetric aerogel which passively records the kinetic energy of captured hypervelocity particles.
Document ID
Acquisition Source
Document Type
Conference Paper
Dominguez, Gerardo
(California Univ. Berkeley, CA, United States)
Westphal, Andrew J.
(California Univ. Berkeley, CA, United States)
Phillips, Mark L. F.
(Pleasanton Ridge Research Corp. Hayward, CA, United States)
Jones, Steven M.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
August 21, 2013
Publication Date
January 1, 2003
Publication Information
Publication: Lunar and Planetary Science XXXIV
Subject Category
Funding Number(s)
Distribution Limits
Public Use Permitted.
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