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DETECTOR PIXEL, RADIATION DETECTOR, TOF-PET IMAGING SYSTEM, METHOD PERFOMED IN CONJUNCTION WITH A SCINTILLATOR, AND METHOD OF PRODUCING A MEDICAL IMAGE
DETECTOR PIXEL, RADIATION DETECTOR, TOF-PET IMAGING SYSTEM, METHOD PERFOMED IN CONJUNCTION WITH A SCINTILLATOR, AND METHOD OF PRODUCING A MEDICAL IMAGE
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机译:探测器像素,辐射探测器,TOF-PET成像系统,与闪烁器结合使用的方法以及产生医学图像的方法
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摘要
A radiation detector includes an array of detector pixels each including an array of detector cells. Each detector cell includes a photodiode biased in a breakdown region and digital circuitry coupled with the photodiode and configured to output a first digital value in a quiescent state and a second digital value responsive to photon detection by the photodiode. Digital triggering circuitry is configured to output a trigger signal indicative of a start of an integration time period responsive to a selected number of one or more of the detector cells tranisitioning from the first digital value to the second digital value. Readout digital circuitry accumulates a count of a number of transitions of detector cells of the array of detector cells from the first digital state to the second digital state over the integration time period.
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