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

Junwoo Kim; Dong Woon Kim; Sung Kyn Heo; Ho Kyung Kim

doi:10.1117/12.2512330

1 March 2019 Toward large-area flat-panel sandwich detectors for single-shot dual-energy imaging

Junwoo Kim, Dong Woon Kim, Sung Kyn Heo, Ho Kyung Kim

Proceedings Volume 10948, Medical Imaging 2019: Physics of Medical Imaging; 1094861 (2019) https://doi.org/10.1117/12.2512330
Event: SPIE Medical Imaging, 2019, San Diego, California, United States

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.

Citation Download Citation

Junwoo Kim, Dong Woon Kim, Sung Kyn Heo, and Ho Kyung Kim "Toward large-area flat-panel sandwich detectors for single-shot dual-energy imaging", Proc. SPIE 10948, Medical Imaging 2019: Physics of Medical Imaging, 1094861 (1 March 2019); https://doi.org/10.1117/12.2512330

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available