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公开(公告)号：US20070211858A1
公开(公告)日：2007-09-13
申请号：US11570604
申请日：2005-06-09
申请人： Anthony Franklin , Martin Powell , Michael Overdick , Augusto Nascetti , Walter Ruetten , Tiemen Poorter , Lex Alving
发明人： Anthony Franklin , Martin Powell , Michael Overdick , Augusto Nascetti , Walter Ruetten , Tiemen Poorter , Lex Alving
IPC分类号： G01T1/02 , H01L27/146
CPC分类号： H01L27/14658 , H01L27/14676
摘要： An Y-ray detector apparatus comprises an array of detector pixels arranged into a plurality of sub-arrays. The pixels in each sub-array share a common dose sensing output provided to a dose sensing output conductor which extends to a periphery of the pixel array. The dose sensing output conductor for one sub-array of pixels passes through the area occupied by another sub-array of pixels, which can lead to unwanted cross talk. The invention provides a plurality of additional screening electrodes, with a screening electrode substantially adjacent the dose sensing output conductor for each sub-array of pixels. These screening electrodes reduce cross talk between the dose sensing output and other pixel electrodes. In another arrangement, each pixel further comprises a pixel electrode for each pixel formed at an upper region of the array, and the dose sensing output conductors are formed at a lower regon of the array. An intermediate conductor layer is then provided which overlaps the dose sensing output conductors for other sub-arrays of pixels and which pass through the area occupied by the sub-array of pixels.
摘要翻译： Y射线检测器装置包括布置成多个子阵列的检测器像素的阵列。 每个子阵列中的像素共享提供给延伸到像素阵列的周边的剂量感测输出导体的公共剂量感测输出。 用于一个子像素阵列的剂量感测输出导体穿过由另一子像素阵列占据的区域，这可能导致不想要的串扰。 本发明提供了多个附加的屏蔽电极，其中每个子像素阵列具有与剂量感测输出导体基本相邻的屏蔽电极。 这些筛选电极减少剂量感测输出和其他像素电极之间的串扰。 在另一种布置中，每个像素还包括用于形成在阵列的上部区域的每个像素的像素电极，并且剂量感测输出导体形成在阵列的较低离子处。 然后提供中间导体层，其与用于其他子像素阵列的剂量感测输出导体重叠，并且穿过由像素子阵列占据的区域。
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公开(公告)号：US07601961B2
公开(公告)日：2009-10-13
申请号：US11570604
申请日：2005-06-09
申请人： Anthony Roy Franklin , Martin John Powell , Michael Overdick , Augusto Nascetti , Walter Ruetten , Tiemen Poorter , Lex Alving
发明人： Anthony Roy Franklin , Martin John Powell , Michael Overdick , Augusto Nascetti , Walter Ruetten , Tiemen Poorter , Lex Alving
IPC分类号： H05G1/64
CPC分类号： H01L27/14658 , H01L27/14676
摘要： An Y-ray detector apparatus comprises an array of detector pixels arranged into a plurality of sub-arrays. The pixels in each sub-array share a common dose sensing output provided to a dose sensing output conductor which extends to a periphery of the pixel array. The dose sensing output conductor for one sub-array of pixels passes through the area occupied by another sub-array of pixels, which can lead to unwanted cross talk. The invention provides a plurality of additional screening electrodes, with a screening electrode substantially adjacent the dose sensing output conductor for each sub-array of pixels. These screening electrodes reduce cross talk between the dose sensing output and other pixel electrodes. In another arrangement, each pixel further comprises a pixel electrode for each pixel formed at an upper region of the array, and the dose sensing output conductors are formed at a lower region of the array. An intermediate conductor layer is then provided which overlaps the dose sensing output conductors for other sub-arrays of pixels and which pass through the area occupied by the sub-array of pixels.
摘要翻译： Y射线检测器装置包括布置成多个子阵列的检测器像素的阵列。 每个子阵列中的像素共享提供给延伸到像素阵列的周边的剂量感测输出导体的公共剂量感测输出。 用于一个子像素阵列的剂量感测输出导体穿过由另一子像素阵列占据的区域，这可能导致不想要的串扰。 本发明提供了多个附加的屏蔽电极，其中每个子像素阵列具有与剂量感测输出导体基本相邻的屏蔽电极。 这些筛选电极减少剂量感测输出和其他像素电极之间的串扰。 在另一种布置中，每个像素还包括用于形成在阵列的上部区域的每个像素的像素电极，并且剂量感测输出导体形成在阵列的下部区域。 然后提供中间导体层，其与用于其他子像素阵列的剂量感测输出导体重叠，并且穿过由像素子阵列占据的区域。
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3.发明授权公开(公告)号：US08546765B2
公开(公告)日：2013-10-01
申请号：US12997891
申请日：2009-06-19
IPC分类号： G01T1/24
CPC分类号： G01T1/24 , H04N5/32 , H04N5/3559
摘要： An x-ray detector and its pixel circuit are described, that allow to cover a large dynamic range with automatic selection of the sensitivity setting in each pixel, thus providing improved signal to noise ratio with all exposure levels. X-ray detectors are required to cover a large dynamic range. The largest exposure determines the required pixel capacitance. However, a large pixel capacitance gives a bad signal to noise ratio with small exposures e.g. in the dark parts of the image. This invention disclosure describes several approaches to provide automatic sensitivity selection in the pixels. This ensures that low signals are stored in a small capacitor or read out with a high sensitivity with corresponding good signal to noise ratio, while larger signals are stored in larger capacitors or are read out with lower sensitivity so that no information is lost.
摘要翻译： 描述了X射线检测器及其像素电路，其允许通过自动选择每个像素中的灵敏度设置来覆盖大的动态范围，从而在所有曝光水平提供改善的信噪比。 X射线探测器需要覆盖大的动态范围。 最大的曝光决定所需的像素电容。 然而，较大的像素电容给出了较小的曝光率的信噪比差。 在图像的黑暗部分。 本发明公开描述了在像素中提供自动灵敏度选择的几种方法。 这确保了低信号被存储在小电容器中或以高灵敏度读出，具有相应的良好的信噪比，而较大的信号存储在较大的电容器中或以较低的灵敏度读出，从而不会丢失信息。
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4.发明申请公开(公告)号：US20110108735A1
公开(公告)日：2011-05-12
申请号：US12997891
申请日：2009-06-19
IPC分类号： G01T1/24
CPC分类号： G01T1/24 , H04N5/32 , H04N5/3559
摘要： An x-ray detector and its pixel circuit are described, that allow to cover a large dynamic range with automatic selection of the sensitivity setting in each pixel, thus providing improved signal to noise ratio with all exposure levels. X-ray detectors are required to cover a large dynamic range. The largest exposure determines the required pixel capacitance. However, a large pixel capacitance gives a bad signal to noise ratio with small exposures e.g. in the dark parts of the image. This invention disclosure describes several approaches to provide automatic sensitivity selection in the pixels. This ensures that low signals are stored in a small capacitor or read out with a high sensitivity with corresponding good signal to noise ratio, while larger signals are stored in larger capacitors or are read out with lower sensitivity so that no information is lost.
摘要翻译： 描述了X射线检测器及其像素电路，其允许通过自动选择每个像素中的灵敏度设置来覆盖大的动态范围，从而在所有曝光水平提供改善的信噪比。 X射线探测器需要覆盖大的动态范围。 最大的曝光决定所需的像素电容。 然而，较大的像素电容给出了较小的曝光率的信噪比差。 在图像的黑暗部分。 本发明公开描述了在像素中提供自动灵敏度选择的几种方法。 这确保了低信号被存储在小电容器中或以高灵敏度读出，具有相应的良好的信噪比，而较大的信号存储在较大的电容器中，或者以较低的灵敏度读出，从而不会丢失任何信息。
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公开(公告)号：US20120080606A1
公开(公告)日：2012-04-05
申请号：US13375514
申请日：2010-06-16
申请人： Roelf Van Der Wal , Lex Alving , Walter Ruetten
发明人： Roelf Van Der Wal , Lex Alving , Walter Ruetten
IPC分类号： G01T1/24
摘要： A processing circuit for an X-ray sensor for collecting at least a first pixel information of a first pixel and a second pixel information of a second pixel is provided. The processing circuit comprises an amplifier (112), a feedback loop (113) and a first collecting device (111). It is provided a compensation for a non-linearity in the pixels or in the pixel circuits (100, 200) by applying an inverse non-linearity (125) in the periphery of the X-ray sensor. A processing circuit (110) may provide a copy of a pixel voltage and/or of a pixel charge. In the case of pixel charge a non-linear characteristic of a pixel capacitance may be compensated.
摘要翻译： 提供了一种用于收集至少第一像素的第一像素信息和第二像素的第二像素信息的用于X射线传感器的处理电路。 处理电路包括放大器（112），反馈回路（113）和第一收集装置（111）。 通过在X射线传感器的周围施加逆非线性（125），对像素或像素电路（100,200）中的非线性进行补偿。 处理电路（110）可以提供像素电压和/或像素电荷的副本。 在像素电荷的情况下，可以补偿像素电容的非线性特性。
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公开(公告)号：US09049395B2
公开(公告)日：2015-06-02
申请号：US13375514
申请日：2010-06-16
申请人： Roelf Van Der Wal , Lex Alving , Walter Ruetten
发明人： Roelf Van Der Wal , Lex Alving , Walter Ruetten
摘要： A processing circuit for an X-ray sensor for collecting at least a first pixel information of a first pixel and a second pixel information of a second pixel is provided. The processing circuit comprises an amplifier (112), a feedback loop (113) and a first collecting device (111). It is provided a compensation for a non-linearity in the pixels or in the pixel circuits (100, 200) by applying an inverse non-linearity (125) in the periphery of the X-ray sensor. A processing circuit (110) may provide a copy of a pixel voltage and/or of a pixel charge. In the case of pixel charge a non-linear characteristic of a pixel capacitance may be compensated.
摘要翻译： 提供了一种用于收集至少第一像素的第一像素信息和第二像素的第二像素信息的用于X射线传感器的处理电路。 处理电路包括放大器（112），反馈回路（113）和第一收集装置（111）。 通过在X射线传感器的周围施加逆非线性（125），对像素或像素电路（100,200）中的非线性进行补偿。 处理电路（110）可以提供像素电压和/或像素电荷的副本。 在像素电荷的情况下，可以补偿像素电容的非线性特性。
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公开(公告)号：US07504638B2
公开(公告)日：2009-03-17
申请号：US11912327
申请日：2006-04-13
IPC分类号： G01T1/24
CPC分类号： G01T1/2928
摘要： In a flat X-ray detector, Electromagnetic Interference (EMI) is reduced by either opening a pickup loop between the common lines (28) and the reference plane (29) of the PCB, or by reducing the size of a pickup loop by providing a permanent connection (33) between the common supply line and the reference plane (29) in respect of each row of photoconductors (12).
摘要翻译： 在平板X射线检测器中，通过在公共线路（28）和PCB的参考平面（29）之间打开拾音环路，或通过提供拾音器环路的尺寸来减小电磁干扰（EMI） 相对于每排感光体（12），共用电源线和参考平面（29）之间的永久连接（33）。
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公开(公告)号：US20080185529A1
公开(公告)日：2008-08-07
申请号：US11912327
申请日：2006-04-13
IPC分类号： G01T1/24
CPC分类号： G01T1/2928
摘要： In a flat X-ray detector, Electromagnetic Interference (EMI) is reduced by either opening a pickup loop between the common lines (28) and the reference plane (29) of the PCB, or by reducing the size of a pickup loop by providing a permanent connection (33) between the common supply line and the reference plane (29) in respect of each row of photoconductors (12).
摘要翻译： 在平板X射线检测器中，通过在公共线路（28）和PCB的参考平面（29）之间打开拾音环路，或通过提供拾音器环路的尺寸来减小电磁干扰（EMI） 相对于每排感光体（12），共用电源线和参考平面（29）之间的永久连接（33）。
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