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Proceedings Paper

Toward large-area flat-panel sandwich detectors for single-shot dual-energy imaging
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Paper Abstract

The authors have developed a sandwich-like multilayer detector capable of imaging a large field of view. Two detector layers use the same photodiode arrays based on complementary metal-oxide-semiconductor active pixel technology while the scintillators of the front and rear detectors are composed of Gd2O2S : Tb and CsI : Tl, respectively. The front detector is implemented on a flexible printed-circuit board (FPCB) that is electrically connected to a corresponding control/readout PCB located under the rear detector’s control/readout PCB. The energy separation between two detector layers can be improved by using additional interlayer filters. Imaging performance of each detector layer is investigated for various filter designs. The imaging performance is evaluated in terms of large-area signal and noise, modulation-transfer function, noise-power spectrum, and detective quantum efficiency.

Paper Details

Date Published: 1 March 2019
PDF: 7 pages
Proc. SPIE 10948, Medical Imaging 2019: Physics of Medical Imaging, 1094861 (1 March 2019); doi: 10.1117/12.2512330
Show Author Affiliations
Junwoo Kim, Pusan National Univ. (Korea, Republic of)
Dong Woon Kim, Pusan National Univ. (Korea, Republic of)
Sung Kyn Heo, Vatech Ewoo Research Innovation Ctr. (Korea, Republic of)
Ho Kyung Kim, Pusan National Univ. (Korea, Republic of)

Published in SPIE Proceedings Vol. 10948:
Medical Imaging 2019: Physics of Medical Imaging
Taly Gilat Schmidt; Guang-Hong Chen; Hilde Bosmans, Editor(s)

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