Flat detector with integrated dose sensing

Michael Overdick; Ronald A. Ford; Anthony R. Franklin; Augusto Nascetti; Martin J. Powell; Walter Ruetten; Matthias Simon

doi:10.1117/12.479997

5 June 2003 Flat detector with integrated dose sensing

Michael Overdick, Ronald A. Ford, Anthony R. Franklin, Augusto Nascetti, Martin J. Powell, Walter Ruetten, Matthias Simon

Author Affiliations +

Proceedings Volume 5030, Medical Imaging 2003: Physics of Medical Imaging; (2003) https://doi.org/10.1117/12.479997
Event: Medical Imaging 2003, 2003, San Diego, California, United States

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.

Citation Download Citation

Michael Overdick, Ronald A. Ford, Anthony R. Franklin, Augusto Nascetti, Martin J. Powell, Walter Ruetten, and Matthias Simon "Flat detector with integrated dose sensing", Proc. SPIE 5030, Medical Imaging 2003: Physics of Medical Imaging, (5 June 2003); https://doi.org/10.1117/12.479997

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