Direct charge handling method for dead-time-less photon counting

Katsuyuki Takagi; Akifumi Koike; Toru Aoki

doi:10.1117/12.2272805

2 June 2017 Direct charge handling method for dead-time-less photon counting

Katsuyuki Takagi, Akifumi Koike, Toru Aoki

Proceedings Volume 10209, Image Sensing Technologies: Materials, Devices, Systems, and Applications IV; 102091D (2017) https://doi.org/10.1117/12.2272805
Event: SPIE Commercial + Scientific Sensing and Imaging, 2017, Anaheim, CA, United States

Abstract

X-ray imaging is popular in medical imaging, non-destructive testing and security. The main techniques of x-ray imaging with semiconductor detector are charge accumulation and photon counting, and the photon counting is expected to identify materials at the same time with taking x-ray photograph by using energy information of x-ray photons. We proposed direct charge handling method to build photon counting system with energy information for x-ray imaging. This method operates the charge from x-ray detector and converts it to encoded digital bit pattern directly without dead time of front end circuit. We simulated and built proposed system to prove operating principals.

Citation Download Citation

Katsuyuki Takagi, Akifumi Koike, and Toru Aoki "Direct charge handling method for dead-time-less photon counting", Proc. SPIE 10209, Image Sensing Technologies: Materials, Devices, Systems, and Applications IV, 102091D (2 June 2017); https://doi.org/10.1117/12.2272805

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