Imaging performance of a large-field kinestatic charge detector for digital radiography

Frank A. DiBianca; Sreenivas Devidas; George C. Giakos; Shashidhar Kollipara; Joseph S. Laughter; Azad Mahmud; Senthilkumar Nagarajan; Qian Peng; Carlos Rodriguez; Herbert D. Zeman

doi:10.1117/12.208359

8 May 1995 Imaging performance of a large-field kinestatic charge detector for digital radiography

Frank A. DiBianca, Sreenivas Devidas, George C. Giakos, Shashidhar Kollipara, Joseph S. Laughter, Azad Mahmud, Senthilkumar Nagarajan, Qian Peng, Carlos Rodriguez, Herbert D. Zeman

Author Affiliations +

Proceedings Volume 2432, Medical Imaging 1995: Physics of Medical Imaging; (1995) https://doi.org/10.1117/12.208359
Event: Medical Imaging 1995, 1995, San Diego, CA, United States

Abstract

The initial performance of a digital radiographic system incorporating a large-field (2016- channel) kinestatic charge detector and data acquisition electronics is discussed. The measured modulation transfer function of the system is 20% at 4 cy/mm. The measured detective quantum efficiency is 40 - 60%. These results are comparable with or better than those of current clinical (rare-earth film-screen and storage phosphor) systems. First images from the large-field system are shown and compared with those from commercial systems. Future system improvements in process or in planning are discussed.

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Frank A. DiBianca, Sreenivas Devidas, George C. Giakos, Shashidhar Kollipara, Joseph S. Laughter, Azad Mahmud, Senthilkumar Nagarajan, Qian Peng, Carlos Rodriguez, and Herbert D. Zeman "Imaging performance of a large-field kinestatic charge detector for digital radiography", Proc. SPIE 2432, Medical Imaging 1995: Physics of Medical Imaging, (8 May 1995); https://doi.org/10.1117/12.208359

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