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Optimized scintillator and pixilated photodiode detector array for multi-slice CT x-ray detector using backside illumination
Optimized scintillator and pixilated photodiode detector array for multi-slice CT x-ray detector using backside illumination
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机译:优化的闪烁器和像素化光电二极管探测器阵列,用于使用背面照明的多层CT X射线探测器
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摘要
A photodiode detector array includes a layer of intrinsic semiconductor material having a first doped layer on a first surface of a first conductivity type and an array of photodiodes having respective doped regions on a second surface of an opposite conductivity type. Electrical contacts on the second surface respectively contact the doped regions and convey electrical signal therefrom. Conductors extend from the electrical contacts to convey the electrical signals to output terminals of the array. A scintillator is optically coupled to the layer of intrinsic semiconductor material at the first surface thereof and can be pixelated, with individual scintillator elements aligned with and corresponding to the doped regions of the photodiode. The photodiode detector array can be mounted to a rigid printed wiring board or to a flat bottom wall surface of the scintillator.
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