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

被引:13
|
作者
Dierickx, Bart [1 ]
Yao, Qiang [1 ]
Witvrouwen, Nick [1 ]
Uwaerts, Dirk [1 ]
Vandewiele, Stijn [1 ]
Gao, Peng [1 ]
机构
[1] Caeleste CVBA, Consci Str 1 B, B-2800 Mechelen, Belgium
关键词
X-ray photon counting; scintillator; color X-ray; spectral X-ray; ARRAYS;
D O I
10.3390/s16060764
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
In this paper, we report on the design and performance of a 1 cm(2), 90 x 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.
引用
收藏
页数:14
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