Quality of X-ray transmission radiography based on single photon counting pixel device

This work investigates the optimization of digital X-ray transmission radiography for the observation of time-dependent processes using a single X-ray photon counting pixel device. The maximization of frame rate of acquired roentgenograms is crucial for this purpose. The influence of the X-ray tube...

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Bibliographic Details
Published in:Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Accelerators, spectrometers, detectors and associated equipment, 2005-07, Vol.546 (1), p.113-117
Main Authors: Jakubek, Jan, Vavrik, Daniel, Pospisil, Stanislav, Uher, Josef
Format: Article
Language:English
Subjects:
Digital radiography
Roentgenogram quality
Single photon counting pixel device
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Summary:This work investigates the optimization of digital X-ray transmission radiography for the observation of time-dependent processes using a single X-ray photon counting pixel device. The maximization of frame rate of acquired roentgenograms is crucial for this purpose. The influence of the X-ray tube voltage on the exposure time needed to acquire images of sufficient quality was investigated. Image distortions due to non-uniform pixel detection efficiency across the X-ray detector can be successfully eliminated by a “Direct thickness calibration method” proposed here, in spite of X-ray beam hardening due to the variation of inspected body absorption.
ISSN:0168-9002
1872-9576
DOI:10.1016/j.nima.2005.03.045