NDLI: Analysis of iron meteorites using computed tomography and electron-probe microanalysis

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Analysis of iron meteorites using computed tomography and electron-probe microanalysis

Content Provider	NASA Technical Reports Server (NTRS)
Author	Carpenter, P. K. Gillies, D. C.
Copyright Year	2005
Description	Computed tomography (CT) imaging and electron-probe microanalysis (EPMA) have been used to study samples of the Mundrabilla and Colomera iron meteorites in order to perform structural, textural, and mineralogical analysis. Both gamma-ray (Co-60 source, essentially monochromatic 1.25MeV avg.) and x-ray (420 KeV, continuous) sources have been used, with effective resolution of approximately 1 mm and 0.25 mm, respectively. The gamma-ray source provides approx. 15 cm penetration through steel and is used for larger samples, whereas the x-ray source provides superior resolution at reduced penetration but exhibits beam hardening artifacts. Here we present a combined approach where CT and EPMA imaging and microanalysis aid in the identification of structural and compositional features in iron meteorites.
File Size	3903674
Page Count	2
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20050215577
Archival Resource Key	ark:/13960/t2x39rg6f
Language	English
Publisher Date	2005-01-01
Access Restriction	Open
Subject Keyword	Geophysics Mineralogy Microanalysis Tomography Imaging Techniques Iron Meteorites Cobalt 60 Electron Probes X Ray Sources Structural Analysis Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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