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11. 发明授权

US08558180B2 X-ray detector with improved quantum efficiency 有权
标题翻译：具有提高量子效率的X射线探测器
公开(公告)号：US08558180B2
公开(公告)日：2013-10-15
申请号：US12874408
申请日：2010-09-02
申请人： Ruvin Deych , Charles Shaughnessy
发明人： Ruvin Deych , Charles Shaughnessy
IPC分类号： G01T1/20 , G01T1/24 , G01T1/26 , H05G1/64 , H05G1/22
CPC分类号： G01T1/17 , G01T7/005
摘要： Among other things, one or more systems and/or techniques for integrating electrical charge yielded from an indirect conversion detector array of a pulsating radiation system are provided. The integration begins during a resting period between a first and second pulse and ends before the second pulse is emitted. Electrical charge that is measured during a resting period is integrated, while electrical charge measured during a pulse is not integrated. In this way, parasitic contributions caused by the direct interaction of radiation photons with a photodiode are reduced and a quantum efficiency of the indirect conversion detector array is increased, for example. Moreover, the period of integration can be adjusted such that a voltage gain related to the indirect conversion detector array can be varied to a predetermined level.
摘要翻译：提供了一种或多种用于积分从脉动辐射系统的间接转换检测器阵列产生的电荷的系统和/或技术。积分在第一和第二脉冲之间的静止期间开始，并且在第二脉冲发射之前结束。在静止期间测量的电荷被积分，而在脉冲期间测量的电荷未被积分。以这种方式，减少了由辐射光子与光电二极管的直接相互作用引起的寄生贡献，并且例如间接转换检测器阵列的量子效率增加。此外，可以调节积分周期，使得与间接转换检测器阵列相关的电压增益可以变化到预定水平。

12. 发明申请

US20110176663A1 FOCAL SPOT POSITION DETERMINER 有权
标题翻译：焦点位置确定器
公开(公告)号：US20110176663A1
公开(公告)日：2011-07-21
申请号：US12691358
申请日：2010-01-21
申请人： Charles Shaughnessy
发明人： Charles Shaughnessy
IPC分类号： G21K1/06 , G01D18/00
CPC分类号： A61B6/032 , A61B6/08 , A61B6/4021 , A61B6/4291 , A61B6/585
摘要： One or more systems and/or techniques are disclosed herein for determining the orientation of a focal spot of a radiation source based upon shadows that are imposed on channels of a detector array from an anti-scatter grid. The anti-scatter grid is comprised of one or more anti-scatter plates that are focused on a point other than an intended focal spot of the radiation source. Such anti-scatters plates cast shadows on the detector array (even when the focal spot is located at the intended focal spot). By measuring changes in the signals generated by channels of the detector array that detect the shadows, it may be determined how the orientation of the focal spot has changed throughout an examination or between a calibration scan and an examination scan, for example.
摘要翻译：本文公开了一种或多种系统和/或技术，用于基于从反散射网格施加在检测器阵列的通道上的阴影来确定辐射源的焦斑的取向。防散射格栅由一个或多个聚焦在辐射源的预期焦斑以外的点上的防散射板组成。这种防散射板在检测器阵列上投射阴影（即使当焦斑位于预期焦点时）。通过测量由检测器阵列检测阴影的通道产生的信号的变化，例如可以确定在整个检查中或在校准扫描和检查扫描之间焦点的取向如何变化。

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