Scans of a fake rock cylinder (gold grains in quartz silt with epoxy, created by Alison Mote; ~13 mm core packed in 20-mm cylinder and surrounded with quartz flour) for Alison Mote of the Department of Geological Sciences, the University of Texas at Austin and Richard Ketcham. Scanned by Richard Ketcham on 01 December 2003.
1024x1024 16-bit TIFF format. II, 180 kV, 0.088 mA, no filter, quartz flour wedge, no offset, slice thickness 1 line (= 0.02117 mm), S.O.D. 62 mm, 1600 views, 1 sample per view, inter-slice spacing 1 line (= 0.02117 mm), field of reconstruction 20 mm (maximum field of view 20.32 mm), reconstruction offset 10000, reconstruction scale 23. Acquired with 21 slices per rotation. Total slices = 97. Scanned in two series, with 1-63 having most of the grains and 64-97 with the rest.
