Description
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X-ray CT warp corrected scans of a purple sea urchin, Strongylocentratus purpuratus (collected in Monterey Bay, CA April 2001 by Michael Morris of Sea Life Supply), for Dr. Timothy Rowe of The University of Texas Department of Geological Sciences. Specimen frozen in liquid nitrogen before scanning. Scanned by Matthew Colbert on 18 April 2001. Voxel size X and Y = 0.07422 mm; Z = 0.09 mm. Total slices=174. Please acknowledge The University of Texas High-Resolution X-ray CT Facility (UTCT), Brian Wilbur, and NSF grant IIS-9874781 when using these data.
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Notes
| original scanned images. II, 120 kV, 0.2 mA, no filter, empty mount wedge, 160% offset, slice thickness 2 lines (= 0.090 mm), S.O.D. 78 mm, 1200 views, 2 samples per view, interslice spacing 2 lines (=0.090 mm), field of reconstruction 38 mm (maximum field of view 39.687 mm), reconstruction offset 660, reconstruction scale 37. Scanned in three-slice mode. File header not modified. warpcorr (16bit): The above images modified with IDL software “Unwarp v.1.0” written by Dr. Richard Ketcham to correct for radial distortion of images introduced by ACTIS scanning software. Corrected images are now 522 pixels by 522 pixels, resulting in a revised field of reconstruction of 38.742 mm.Total slices=174. |