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Solid-State X-Ray Imagers

Published online by Cambridge University Press:  31 January 2011

Yoshihiro Izumi  and
Yasukuni Yamane
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Abstract

New solid-state x-ray imagers known as digital flat-panel x-ray detectors are about to be launched in the field of medical diagnostics. The combination of active-matrix technologies developed for active-matrix liquid-crystal displays and x-ray detection materials constitutes the basis of the detectors. Recently, two kinds of direct-conversion detectors have been developed in order to improve their performance. One is a detector using a thick x-ray photoconductor (∼1 mm) made of amorphous selenium, and the other is a novel hybrid panel detector using an x-ray photoconductor made of polycrystalline Cd(Zn)Te. As a result, excellent resolution and good linear sensitivity have been achieved. These detectors have great promise as next-generation digital imaging systems for fluoroscopy and radiography.

Keywords

amorphous selenium (a-Se)cadmium telluride (CdTe)Cd(Zn)Teflat-panel detectorsflat-panel displaysmedical diagnosticsthin-film transistorsx-ray imaging.
Type
Research Article
Information
MRS Bulletin , Volume 27 , Issue 11: Advanced Flat-Panel Displays and Materials , November 2002 , pp. 889 - 893
Copyright
Copyright © Materials Research Society 2002

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