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Proceedings Paper

Flat detector with integrated dose sensing
Author(s): Michael Overdick; Ronald A. Ford; Anthony R. Franklin; Augusto Nascetti; Martin J. Powell; Walter Ruetten; Matthias Simon
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Paper Abstract

Integrated dose sensing in Flat Detectors allows a during pulse control of the X-ray illumination without the need for external dose sensing devices. Standard designs of Flat Detectors do not allow during pulse dose sensing since the information is collected from the pixels only in the read-out phase after the X-ray illumination. This paper introduces a special detector plate design for obtaining dose sensing information directly from the X-ray detector while the X-ray pulse is being applied. This dose sensing information is read at a lower spatial resolution than the actual X-ray image but with a sub-millisecond temporal resolution. The dose sensing operates without any additional radiation burden on the patient and without attenuation of the image information. Experimental results from a small area (4x4 cm2) detector are presented, including an analysis of noise, linearity and cross-talk.

Paper Details

Date Published: 5 June 2003
PDF: 10 pages
Proc. SPIE 5030, Medical Imaging 2003: Physics of Medical Imaging, (5 June 2003); doi: 10.1117/12.479997
Show Author Affiliations
Michael Overdick, Philips Research Labs. (Germany)
Ronald A. Ford, Philips Research Labs. (United Kingdom)
Anthony R. Franklin, Philips Research Labs. (United Kingdom)
Augusto Nascetti, Philips Research Labs. (Germany)
Martin J. Powell, Philips Research Labs. (United Kingdom)
Walter Ruetten, Philips Research Labs. (Germany)
Matthias Simon, Philips Research Labs. (Germany)


Published in SPIE Proceedings Vol. 5030:
Medical Imaging 2003: Physics of Medical Imaging
Martin J. Yaffe; Larry E. Antonuk, Editor(s)

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