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Medical X-ray imaging with energy windowing

Abstract : A photon counting pixel read-out chip for medical X-ray imaging with energy windowing is presented. It consists of 32×32 pixels of 200 m×200 m size, each of them contains two discriminators and two 18-bit counters. Both discriminator thresholds can be adjusted individually for good image homogeneity and a circuit has been designed to avoid threshold drift. Measurements on the noise behaviour, threshold variation and threshold drift are shown.
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http://hal.in2p3.fr/in2p3-00011259
Contributor : Magali Damoiseaux <>
Submitted on : Friday, March 8, 2002 - 5:51:50 PM
Last modification on : Tuesday, March 30, 2021 - 3:17:20 AM

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  • HAL Id : in2p3-00011259, version 1

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M. Lindner, L. Blanquart, P. Fischer, H. Krueger, N. Wermes. Medical X-ray imaging with energy windowing. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Elsevier, 2001, 465, pp.229-234. ⟨in2p3-00011259⟩

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