28 May 1999 Characterization of a third-generation multimode sensor panel
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Proceedings Volume 3659, Medical Imaging 1999: Physics of Medical Imaging; (1999); doi: 10.1117/12.349527
Event: Medical Imaging '99, 1999, San Diego, CA, United States
Abstract
This paper describes a third-generation multi-mode x-ray imager whose applications include low-dose fluoroscopy, cine, spot films, and radiography. In addition, volumetric CT and applications whose environment includes a 2 tesla magnetic field are also in development. The VIP-9 is based on an amorphous silicon TFT/Photodiode array and x-ray conversion screen, which is optionally a deposited CsI(Tl) film or a removable Gd2O2S screen. There are three primary modes of operation: RAD for high resolution radiographs and spot films; Fluoro for video rate, low dose fluoroscopy as well as cine; Zoom for high resolution, limited field of view (FOV) fluoroscopy. Through improved electronics, the imager has greater sensitivity at low doses and far better rejection of correlated line noise than its predecessors. In addition, the VIP-9 incorporates many ease-of-use features absent from earlier prototype imagers. While previous reports have primarily focused on the imager construction and noise issues in large area sensing technology, in this paper the emphasis is on features which facilitate integration into a complete imaging system and measures of image quality.
© (1999) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Richard E. Colbeth, Virgil N. Cooper, David L. Gilblom, Richard A. Harris, Isaias D. Job, Martin E. Klausmeier-Brown, Marcel Marc, John M. Pavkovich, Edward J. Seppi, Edward G. Shapiro, Michael Dean Wright, Jiann Michael Yu, "Characterization of a third-generation multimode sensor panel", Proc. SPIE 3659, Medical Imaging 1999: Physics of Medical Imaging, (28 May 1999); doi: 10.1117/12.349527; https://doi.org/10.1117/12.349527
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KEYWORDS
Imaging systems

X-rays

Sensors

Video

Signal to noise ratio

Receptors

Control systems

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