6 October 1999 PbI2 for high-resolution digital x-ray imaging
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Abstract
In this paper, we discuss recent progress that has been made in the development of high resolution X-ray imaging detectors using photoconducting films of lead iodide (PbI2). PbI2 is a wide bandgap semiconductor with high X- ray stopping efficiency. We have been investigating thick films of lead iodide which can be prepared in large areas in a cost effective manner. These films can be coupled to readout technologies such as amorphous silicon flat panel arrays and vidicon tubes to produce X-ray imaging detectors for applications such as mammography, fluoroscopy, X-ray diffraction and non-destructive evaluation. Recent results obtained when these PbI2 films are coupled to 512 X 512 flat panel a-Si:H array are reported. This includes dark current, signal and resolution measurements. Properties of lead iodide films which are relevant to imager performance are also discussed.
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Kanai S. Shah, Paul R. Bennett, Yuriy N. Dmitriyev, Leonard J. Cirignano, Misha Klugerman, Michael R. Squillante, Robert A. Street, Jeffrey T. Rahn, and Steve E. Ready "PbI2 for high-resolution digital x-ray imaging", Proc. SPIE 3770, Medical Applications of Penetrating Radiation, (6 October 1999); doi: 10.1117/12.368179; https://doi.org/10.1117/12.368179
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