This high resolution digital radiograph of Fragment A of the Antikythera Mechanism was taken by X-Tek on 13th October 2005 at the National Archaeological Museum of Athens as part of the X-Ray data gathering phase of the Antikythera Mechanism Research Project (03/10/05 – 19/10/03).
The radiograph was taken in X-Tek's BladeRunner CT cabinet using an X-Tek 225kV microfocus X-Ray source and a Kodak ACR2000i Computed Radiography (CR) system. A standard 14” x 17” (35cm x 43cm) storage phosphor plate was used, and scanned at 0.069mm per pixel. This particular radiograph was taken with a 975mm source to plate distance, at 200kV, 100uA, with a 15sec exposure.
The original digital radiographs are 12-bit (4096 grey levels), with a size of 5120 x 6233 pixels (32 Megapixels). The (lossless) compressed file sizes are in the order of 30 to 60MB. The digital radiographs available here have been reduced in size by reducing the bit depth to 8-bits, (256 grey level) and then performing lossy JPEG compression. The digital radiograph is available in a number of sizes to facillitate download.
Full Resolution Radiograph (5120x6233) 1469KB
Half Resolution Radiograph (2560x3117) 482KB
Quarter Resolution Radiograph (128x1558) 164KB
Tenth Resolution Radiograph (512x623) 43KB
All photographs, radiographs and CT images of the Antikythera Mechanism on this site are owned by the Antikythera Mechanism Research Project and are © Antikythera Research Mechanism Project.
For more about X-Tek's inspection of the Antikythera Mechanism please email antikythera@xtekxray.com.
Further information can be found on the Antikythera Mechanism Research Project website.
The Antikythera Research Project is a joint programme between Cardiff University, Athens University, Aristotle University of Thessaloniki, the National Archaeological Museum of Athens, X-Tek Systems UK and Hewlett-Packard USA, funded by the Leverhulme Foundation.
For more information please contact:
Professor M.G. Edmunds
Cardiff University
E: mge@astro.cf.ac.uk
T: +44 (0)29 2087 4043
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