Physics – Optics
Scientific paper
Apr 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aipc.1221..131w&link_type=abstract
X-RAY OPTICS AND MICROANALYSIS: Proceedings of the 20th International Congress. AIP Conference Proceedings, Volume 1221, pp. 13
Physics
Optics
2
Interstellar Matter, X-Ray Sources (Astronomical), X-Ray Fluorescence, X-Ray Spectroscopy, Interstellar Dust Grains, Diffuse Emission, Infrared Cirrus, X-Ray Sources, X-Ray Bursts, X-Ray Emission Spectra And Fluorescence, Analytical Methods Involving Vibrational Spectroscopy
Scientific paper
Here we describe the critical role that synchrotron X-ray and infrared microprobes are playing in the search for interstellar dust in the Stardust Interstellar Dust Collector (SIDC). The samples under examination are submicron particles trapped in low-density aerogel. We have found that the spatial resolution, energy range, and flux capabilities of the FTIR beamlines 1.4.3, ALS, and U2B, NSLS; the XRF microprobes ID13 and ID22NI, ESRF and 2-ID-D, APS; and the STXM beamline 11.0.2, ALS are ideally suited for studying these tiny returned samples. Using nondestructive, coordinated analyses at these microprobes, we have been able to eliminate most candidates as likely samples of interstellar dust. This in itself is a major accomplishment, since the analysis of these tiny samples is technically extremely challenging.
Allbrink A.
Allen Christine
Bajt Saa
Bastien Renaud
Bechtel HA
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