
Proceedings Paper
Flat panel detector for digital radiology using active matrix readout of amorphous seleniumFormat | Member Price | Non-Member Price |
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Paper Abstract
Our goal is to develop a large area, flat panel, solid-state detector for both digital radiography and fluoroscopy. The proposed detector employs a photoconductive layer of amorphous selenium (a-Se) to convert x rays into charge. The charge image formed on the a-Se is electronically read out in situ using a two dimensional array of thin film transistors (TFTs), or 'active matrix.' Since the active matrix readout is capable of producing x-ray images in real- time, it can potentially be applied in both radiography and fluoroscopy. Investigation of the practical feasibility of this concept with a prototype x-ray imaging detector is described. Measurement of x-ray imaging properties, e.g. modulation transfer function (MTF) and x-ray sensitivity of the prototype are investigated, and the results compared with our earlier theoretical analysis.
Paper Details
Date Published: 11 April 1996
PDF: 9 pages
Proc. SPIE 2708, Medical Imaging 1996: Physics of Medical Imaging, (11 April 1996); doi: 10.1117/12.237814
Published in SPIE Proceedings Vol. 2708:
Medical Imaging 1996: Physics of Medical Imaging
Richard L. Van Metter; Jacob Beutel, Editor(s)
PDF: 9 pages
Proc. SPIE 2708, Medical Imaging 1996: Physics of Medical Imaging, (11 April 1996); doi: 10.1117/12.237814
Show Author Affiliations
Wei Zhao, Sunnybrook Health Sciences Ctr./Univ. of Toronto (Canada)
Ira M. Blevis, Sunnybrook Health Sciences Ctr./Univ. of Toronto (Canada)
Stephen Germann, Sunnybrook Health Sciences Ctr./Univ. of Toronto (Canada)
Ira M. Blevis, Sunnybrook Health Sciences Ctr./Univ. of Toronto (Canada)
Stephen Germann, Sunnybrook Health Sciences Ctr./Univ. of Toronto (Canada)
John A. Rowlands, Sunnybrook Health Sciences Ctr./Univ. of Toronto (Canada)
David F. Waechter, Litton Systems Canada Ltd. (Canada)
Zhong Huang, Litton Systems (Canada)
David F. Waechter, Litton Systems Canada Ltd. (Canada)
Zhong Huang, Litton Systems (Canada)
Published in SPIE Proceedings Vol. 2708:
Medical Imaging 1996: Physics of Medical Imaging
Richard L. Van Metter; Jacob Beutel, Editor(s)
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