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    • 2. 发明申请
    • X-RAY DETECTOR
    • X射线探测器
    • WO2010058369A3
    • 2011-05-19
    • PCT/IB2009055211
    • 2009-11-20
    • PHILIPS INTELLECTUAL PROPERTYKONINKL PHILIPS ELECTRONICS NVRUETTEN WALTERKIEWITT RAINERWISCHHUSEN OLAF
    • RUETTEN WALTERKIEWITT RAINERWISCHHUSEN OLAF
    • G01T1/24
    • G01T1/24
    • The application describes an X-ray detector for use in a medical equipment, wherein the detector comprises an unit for transforming X-ray radiation into electrical charge, a first capacitor for being charged by an electrical charge, wherein the first capacitor is electrically connected to the unit for transforming, a second capacitor for being charged by an electrical charge, and a first gain switching gate, wherein the second capacitor is electrically connected with the unit for transforming if the first gain switching gate is in on-state, wherein the detector is adapted to switch on the first gain switching gate for short periods. Further the application describes an X-ray system comprising a detector according to the invention, wherein the system is adapted for gain selection, wherein the detector is adapted to switch on the first gain switching gate for short periods. Further, the application describes a method for using a detector according to the inventive concept, wherein the first gain switching gate is switched on only for short periods of time for redistribution of electrical charge between the first capacitor and the second capacitor.
    • 本申请描述了用于医疗设备的X射线检测器,其中检测器包括用于将X射线辐射转换成电荷的单元,用于通过电荷充电的第一电容器,其中第一电容器电连接到 用于变换的单元,通过电荷充电的第二电容器和第一增益切换栅极,其中如果所述第一增益切换栅极处于导通状态,则所述第二电容器与所述用于变换的单元电连接,其中所述检测器 适于在短时间内接通第一增益切换门。 此外,本申请描述了一种包括根据本发明的检测器的X射线系统,其中该系统适于增益选择,其中检测器适于在短时间内接通第一增益切换门。 此外,本申请描述了一种使用根据本发明概念的检测器的方法,其中第一增益切换栅极仅在短时间段内被接通以在第一电容器和第二电容器之间重新分配电荷。
    • 4. 发明申请
    • DETERMINING CHANGES IN THE X-RAY EMISSION YIELD OF AN X-RAY SOURCE
    • 确定X射线源X射线辐射场的变化
    • WO2012069944A8
    • 2013-05-23
    • PCT/IB2011054871
    • 2011-11-02
    • KONINKL PHILIPS ELECTRONICS NVPHILIPS INTELLECTUAL PROPERTYSPRONG HANS PETERDUERR MARTIN KIMUTAIKIEWITT RAINER
    • SPRONG HANS PETERDUERR MARTIN KIMUTAIKIEWITT RAINER
    • H01J35/02H05G1/30
    • H05G1/54A61B6/507H01J35/02H05G1/30
    • The present invention relates to determining changes in the X-ray emission yield of an X-ray tube, in particular determining dose degradation. In order to provide determination of such changes, an X-ray source is provided comprising a cathode, an anode; and at least one X-ray sensor (16). The cathode emits electrons towards the anode and the anode comprises a target area on which the electrons impinge, generating X-ray radiation. An X-ray barrier (24) is provided with an aperture (26) for forming an emitting X-ray beam from the X-ray radiation, wherein the emitting X-ray beam has a beam formation (30) with a central axis. The at least one X-ray sensor is arranged within the beam formation and measures the X-ray intensity for a specific direction of X-ray emission with an angle with respect to the central axis. The at least one X- ray sensor can be positioned inside the beam formation (30), but outside the "actual field of view" (40) as determined by a diaphragm (36).
    • 本发明涉及确定X射线管的X射线发射产率的变化,特别是确定剂量降解。 为了提供这种变化的确定,提供包括阴极,阳极的X射线源; 和至少一个X射线传感器(16)。 阴极向阳极发射电子,阳极包括电子撞击在其上的目标区域,产生X射线辐射。 X射线屏障(24)设置有用于从X射线辐射形成发射X射线束的孔(26),其中发射X射线束具有具有中心轴线的束形成(30)。 所述至少一个X射线传感器被布置在所述光束形成内并且测量相对于所述中心轴线具有一定角度的X射线发射的特定方向的X射线强度。 所述至少一个X射线传感器可以位于波束形成(30)内,但是位于通过隔膜(36)确定的“实际视野”(40)之外。
    • 6. 发明申请
    • SUPPRESSION OF DIRECT DETECTION EVENTS IN X-RAY DETECTORS
    • 在X射线探测器中抑制直接检测事件
    • WO2009107045A3
    • 2010-03-25
    • PCT/IB2009050691
    • 2009-02-19
    • PHILIPS INTELLECTUAL PROPERTYKONINKL PHILIPS ELECTRONICS NVRUETTEN WALTERPOORTER TIEMENKIEWITT RAINER
    • RUETTEN WALTERPOORTER TIEMENKIEWITT RAINER
    • G01T1/20
    • G01T1/2018H04N5/32H04N5/357
    • According to an embodiment of the invention, signals coming from a number of pixels or sub-pixels are compared and those signals from pixels or sub-pixels, which are substantially brighter than the other pixels in the comparison, are excluded from contributing to the output signal, to suppress direct detection events in X-ray detectors. For this an X-ray detector apparatus (101) can comprise: -an array (102) of pixel arrangements (303), -each pixel arrangement (303) comprising at least one radiation collection device (311) for converting incident radiation into a collection device signal, -switching arrangements (313, 324, 314, 142; 313, 315, 314, 352, 142; 313, 315, 314; 361) for providing to respectively one output element (141) a signal derived from the collection device signals of a plurality of radiation collection devices (311) of at least one pixel arrangement (303).
    • 根据本发明的实施例,来自多个像素或子像素的信号被比较,并且比较比较中基本上比其他像素明亮的像素或子像素的那些信号被排除在对输出的贡献之外 信号,以抑制X射线检测器中的直接检测事件。 为此,X射线检测器装置(101)可以包括: - 像素装置(303)的阵列(102), - 每个像素布置(303),包括至少一个辐射收集装置(311),用于将入射辐射转换成 收集装置信号, - 切换装置(313,324,314,142; 313,315,314,352,142; 313,315,314; 361),用于向所述收集装置信号分配一个输出元件(141) 至少一个像素装置(303)的多个辐射收集装置(311)的装置信号。