Abstract
Phosphors coupled with photodetectors have been widely used in digital X-ray imaging applications. Some of the advantages of using phosphor films include X-ray conversion efficiency, spatial resolution, and integration with the imaging array. In this paper, the experimental studies of the Y/sub 2/O/sub 2/S:Tb synthesis, deposition, and characterization are reported on. Y/sub 2/O/sub 2/S:Tb powder was characterized in terms of scanning electron microscopy (SEM), X-ray diffraction (XRD), luminescence spectroscopy, and X-ray conversion efficiency. In addition, a Y/sub 2/O/sub 2/S:Tb layer was formed on cadmium sulphide (CdS) for the hybrid X-ray detector structure. The evaluation of the Y/sub 2/O/sub 2/S:Tb-CdS detector was performed by determining the leakage current, X-ray sensitivity, and linearity with respect to X-ray exposure dose. The results of the study made on the two-layered detector are compared with those from a conventional amorphous selenium (a-Se) detector.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
