2 June 2017 Direct charge handling method for dead-time-less photon counting
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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.
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Katsuyuki Takagi, Katsuyuki Takagi, Akifumi Koike, Akifumi Koike, Toru Aoki, 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); doi: 10.1117/12.2272805; https://doi.org/10.1117/12.2272805

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