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Evaluation of a CCD Imaging Detector with the Medipix2 Detector J. Touš - Crytur Ltd., Turnov, Czech Republic J.Žemlička, J. Jakůbek – IEAP, Prague, Czech Republic Poster ID 146 Monday PS III CCD Camera with Optics and Scintillator Medipix2 Hamamatsu Flat Panel
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Stair-Like Object CNR Medipix2 – highest contrast resolution at low energies YAG (200 microns) – half of that at low energies Flat panel very low contrast at low energies Hamamatsu Flat Panel
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Spatial Resolution Edge response profile fitted by an error function YAG (50 m) – best spatial resolution due to small pixel size Medipix2 – very good subpixel resolution CCD: 4050x2630 sq. pixels of 9 m, sensor size 36mm x 24mm Medipix2: 256 x 256 sq. pixels, pitch of 55 m, sensor size 14mm x 14mm Flat panel: 2400 x 2400 sq. pixels of 50 m, sensor size is 120mm x 120mm = 0.92 pixels = 1.19 pixels = 1.94 pixels = 0.38 pixels = 1.01pixels
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High Resolution X-ray Micro- Radiography Carbon Fibers, 7-10 m Both YAG and Medipix2 can resolve very low contrast objects Carbon Fibers Radiography Using CCD Camera with YAG Carbon Fibers Radiography Using Medipix2
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Thank you for your attention! Poster ID 146 Monday PS III
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