Large-area solid state detector for radiology using amorphous selenium

Wei Zhao; John A. Rowlands

doi:10.1117/12.59391

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1 June 1992 Large-area solid state detector for radiology using amorphous selenium

Wei Zhao; John A. Rowlands

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Proceedings Volume 1651, Medical Imaging VI: Instrumentation; (1992) https://doi.org/10.1117/12.59391
Event: Medical Imaging VI, 1992, Newport Beach, CA, United States

Abstract

A large area self-scanned solid-state detector is being developed for digital radiology. It consists of an x-ray sensitive flat-panel employing amorphous selenium ((alpha) )-Se) as the x- ray transducer and active matrix integrated circuit for readout. In principle such detectors could be used for all the currently applied radiological modalities -- radiography, photofluorography, and fluoroscopy. Layers of (alpha) )-Se up to 500 micrometers thick are readout with an array of thin film field effect transistors. The whole structure is integrated onto a glass plate. For all practical purposes the resolution of the system is dictated by the pixel size and readout could be in real-time (i.e., 30 frames/sec).

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Wei Zhao and John A. Rowlands "Large-area solid state detector for radiology using amorphous selenium", Proc. SPIE 1651, Medical Imaging VI: Instrumentation, (1 June 1992); https://doi.org/10.1117/12.59391

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