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

Sensors

Peng Gao¹  Dirk Uwaerts¹  Bart Dierickx¹  Nick Witvrouwen¹  Stijn Vandewiele¹  Qiang Yao¹ 

[1] Caeleste CVBA, Hendrik Consciencestraat 1 b, 2800 Mechelen, Belgium;

关键词: X-ray photon counting;    scintillator;    color X-ray;    spectral X-ray;   

DOI  :  10.3390/s16060764

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown