发明名称 |
DIGITAL SILICON PHOTOMULTIPLIER FOR TOF-PET |
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 transitioning 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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申请公布号 |
US2010252723(A1) |
申请公布日期 |
2010.10.07 |
申请号 |
US20100756460 |
申请日期 |
2010.04.08 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V. |
发明人 |
FRACH THOMAS;FIEDLER KLAUS |
分类号 |
G01D18/00;G01T1/166;G01T1/208;H01L27/146 |
主分类号 |
G01D18/00 |
代理机构 |
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代理人 |
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地址 |
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