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

Authors
Journal
Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment
0168-9002
Publisher
Elsevier
Publication Date
Volume
546
Identifiers
DOI: 10.1016/j.nima.2005.03.045
Keywords
  • Digital Radiography
  • Roentgenogram Quality
  • Single Photon Counting Pixel Device
Disciplines
  • Physics

Abstract

Abstract 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.

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