Description
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X-ray CT Scans of a meteorite (USNM 5487; CM2 chondrite meteorite) for Romy Hanna of the University of Texas DOGS. Specimen scanned by Romy Hanna and Richard Ketcham 28 February 2012. Voxel Size X and Y= 0.0537mm, Z= 0.05816 mm. Total final slices = 1016. Please acknowledge The University of Texas High-Resolution X-ray CT Facility (UTCT), NASA grant NNX13AO64H, and Dr. Romy Hanna when using this data.
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Related Publication
| Romy D. Hanna, Richard A. Ketcham, Mike Zolensky, Whitney M. Behr, Impact-induced brittle deformation, porosity loss, and aqueous alteration in the Murchison CM chondrite, Geochimica et Cosmochimica Acta, Volume 171,2015, Pages 256-282,
doi: 10.1016/j.gca.2015.09.005 |
Notes
| 1024x1024 16-bit TIFF images. II, 120 kV, 0.35 mA, intensity control off, high-power mode, no filter, empty container wedge, no offset, slice thickness 1 line ( = 0.05816 mm), S.O.D. 167 mm, 1800 views, 2 samples per view, inter-slice spacing 1 line ( = 0.05816 mm), field of reconstruction 55 mm (maximum field of view 55.55445 mm), reconstruction offset 5000, reconstruction scale 3000. Acquired with 31 slices per rotation and 25 slices per set. Ring-removal processing done by Julia Holland based on correction of raw sinogram data using IDL routine “RK_SinoRingProcSimul” with parameter “sectors=50, binwidth=13.” Reconstructed with rotation = 27.7° CCW and beam hardening coefficients using IDL FindBHC [Y found= 0.01, 0.13, 0.26, 0.41, 0.64 with parameters “Num Coef=5, Downsample 4x, ROI Mode=bi-joint, Destreak”]. Deleted first 3 and last 3 duplicate slices from each rotation. Rotation correction processing done by Julia Holland using IDL routine “DoRotationCorrection.” Deleted first 29 last 5 blank slices. Total final slices = 1016. |