Title :
A sampling-based 128×128 direct photon-counting X-ray image sensor with 3 energy bins and spatial resolution of 60μm/pixel
Author :
Kim, Hyun-Sik ; Han, Sang-Wook ; Yang, Jun-Hyeok ; Kim, Sunil ; Kim, Young ; Kim, Sangwook ; Yoon, Dae-Kun ; Lee, Jun-Su ; Park, Jae-Chul ; Sung, Younghun ; Lee, Seong-Deok ; Ryu, Seung-Tak ; Cho, Gyu-Hyeong
Author_Institution :
KAIST, Daejeon, South Korea
Abstract :
The photon-counting method is one of several useful image-detection methods for digital X-ray imaging. The direct-type photon-counting method has higher X-ray-to-charge conversion efficiency and position resolution compared with the indirect-type detection method. Therefore, direct-type detection is more suitable for medical imaging applications for which the dose efficiency and the image quality are especially important.
Keywords :
X-ray imaging; biosensors; image resolution; image sensors; medical image processing; photon counting; X-ray-to-charge conversion efficiency; digital X-ray imaging; direct-type detection; dose efficiency; energy bin; image etection method; image quality; medical imaging application; position resolution; sampling-based direct photon-counting X-ray image sensor; spatial resolution; Arrays; Image sensors; Photoconducting materials; Photonics; Preamplifiers; Switches; X-ray imaging;
Conference_Titel :
Solid-State Circuits Conference Digest of Technical Papers (ISSCC), 2012 IEEE International
Conference_Location :
San Francisco, CA
Print_ISBN :
978-1-4673-0376-7
DOI :
10.1109/ISSCC.2012.6176941
