Real-time x-ray image sensor using a thallium bromide photoconductor

Donald R. Ouimette; Robert M. Iodice; Pang-Jen Kung; Lahmer Lynds

doi:10.1117/12.368178

6 October 1999 Real-time x-ray image sensor using a thallium bromide photoconductor

Donald R. Ouimette, Robert M. Iodice, Pang-Jen Kung, Lahmer Lynds

Proceedings Volume 3770, Medical Applications of Penetrating Radiation; (1999) https://doi.org/10.1117/12.368178
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1999, Denver, CO, United States

Abstract

The University of Connecticut Health Center and Xicon Technologies, LLC have been developing a high speed/high resolution x-ray detector called the XEBIT (X-ray sensitive Electron Beam Image Tube). The XEBIT is a direct conversion image detector that uses Thallium Bromide as the x-ray photoconductor. thallium bromide is a high Z material with a linear attenuation coefficient of 28.11 cm^-1 at 60 keV. This high stopping power results in a quantum efficiency in excess of 50% at 60 keV for 300 micron thick layers. The XEBIT has far superior contrast resolution with over 50 percent modulation at 5 line pairs per millimeter and does not suffer from veiling glare. This paper is a report on the works in progress of the XEBIT development, which s near clinical trials.

Citation Download Citation

Donald R. Ouimette, Robert M. Iodice, Pang-Jen Kung, and Lahmer Lynds "Real-time x-ray image sensor using a thallium bromide photoconductor", Proc. SPIE 3770, Medical Applications of Penetrating Radiation, (6 October 1999); https://doi.org/10.1117/12.368178

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