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Sensors 2016, 16(6), 764;

X-ray Photon Counting and Two-Color X-ray Imaging Using Indirect Detection

Caeleste CVBA, Hendrik Consciencestraat 1 b, 2800 Mechelen, Belgium
Author to whom correspondence should be addressed.
Academic Editors: Nobukazu Teranishi and Eric R. Fossum
Received: 27 January 2016 / Revised: 26 April 2016 / Accepted: 23 May 2016 / Published: 26 May 2016
(This article belongs to the Special Issue Photon-Counting Image Sensors)
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In this paper, we report on the design and performance of a 1 cm2, 90 × 92-pixel image sensor. It is made X-ray sensitive by the use of a scintillator. Its pixels have a charge packet counting circuit topology with two channels, each realizing a different charge packet size threshold and analog domain event counting. Here, the sensor’s performance was measured in setups representative of a medical X-ray environment. Further, two-energy-level photon counting performance is demonstrated, and its capabilities and limitations are documented. We then provide an outlook on future improvements. View Full-Text
Keywords: X-ray photon counting; scintillator; color X-ray; spectral X-ray X-ray photon counting; scintillator; color X-ray; spectral X-ray

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Dierickx, B.; Yao, Q.; Witvrouwen, N.; Uwaerts, D.; Vandewiele, S.; Gao, P. X-ray Photon Counting and Two-Color X-ray Imaging Using Indirect Detection. Sensors 2016, 16, 764.

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