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Proceedings Paper

Simulation of the imaging performance of x-ray image intensifier/TV camera chains
Author(s): Gerhard Spekowius; H. Boerner; W. Eckenbach; Peter Quadflieg; Gert Jan Laurenssen
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Paper Abstract

The signal and noise propagation through a generalized x-ray image intensifier/TV camera chain is modeled in terms of the modulation transfer function, two dimensional noise power spectrum, and detective quantum efficiency. The model covers effects of energy dependent x- ray absorption in the cesium iodide entrance screens, K-fluorescence and K-reabsorption, electron optics, output screens, lenses and also sensing with electronic pick-up tubes (plumbicons) or CCD sensors. Several Philips x-ray image intensifiers in combination with plumbicon TV-chains and with laboratory type CCD cameras are compared with the model. Based on the model results we further present an image simulation tool. The image simulation allows a direct evaluation of the impact of the individual components of the imaging chain on image quality. It is shown that future high resolution CCD systems can exhibit a superior image quality as compared with electronic pick-up tube systems.

Paper Details

Date Published: 8 May 1995
PDF: 12 pages
Proc. SPIE 2432, Medical Imaging 1995: Physics of Medical Imaging, (8 May 1995); doi: 10.1117/12.208339
Show Author Affiliations
Gerhard Spekowius, Philips Research Labs. (Germany)
H. Boerner, Philips Research Labs. (Germany)
W. Eckenbach, Philips Research Labs. (Germany)
Peter Quadflieg, Philips Research Labs. (Germany)
Gert Jan Laurenssen, Philips Medical Systems (Netherlands)

Published in SPIE Proceedings Vol. 2432:
Medical Imaging 1995: Physics of Medical Imaging
Richard L. Van Metter; Jacob Beutel, Editor(s)

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