X-ray computerized tomography -- The Gallery of Nonlinear Science, 19, 041109 (2009)

X-ray computerized tomography scan of crumpled aluminum sheet
Anne Dominique Cambou and Narayanan Menon
http://link.aip.org/link/?CHAOEH/19/041109/1
We use x-ray microtomography to image the interior of a crumpled ball of aluminum foil. The x-ray CT scanner (Skyscan 1172) takes transmission images of the sample with conical X-ray illumination. The sample is rotated through 180 degrees while images are taken after every 0.3 degrees of rotation. Commercial reconstruction software is used to reconstruct a 3-dimensional intensity distribution from the x-ray absorption information carried in the raw images. A complete CT scan is approximately 2000×2000×2000 pixels with a spatial resolution of 9 microns/pix. The reconstructed images fully resolve the mass distribution of the sheet in 3-dimensions. The first part of the video shows the transmission images, and the second part shows a 3D reconstruction. The images have been compressed to about 450×450 pixels and the video shows only every 30th image.

Category:

Science & Technology

Tags:

• x-ray
• tomography
• aluminum
• 3D reconstruction