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Photon counting type image detector, X-ray diagnostic apparatus, and X-ray computed tomography apparatus
Photon counting type image detector, X-ray diagnostic apparatus, and X-ray computed tomography apparatus
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机译:光子计数型图像检测器,X射线诊断装置和X射线计算机断层摄影装置
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摘要
A photon counting type image detector has: a semiconductor cell that detects an X-ray photon; a charge amplifier that generates a plurality of electric pulses each being based on an electric charge collected in response to the detected X-ray photon; a comparator that discriminates a peak value of each of the electric pulses; a threshold logic circuit that performs control so as to count none of the peak-discriminated electric pulses corresponding to energy of characteristic X-rays produced in the semiconductor cell; and a counter that counts the discriminated electric pulses as controlled by the threshold logic circuit.
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