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    X-ray examination apparatus
    2.
    发明授权
    X-ray examination apparatus 失效
    X光检查仪

    公开(公告)号：US06611578B2

    公开(公告)日：2003-08-26

    申请号：US10028119

    申请日：2001-12-21

    申请人： Rudolph Maria Snoeren ,  Johannes Catharina Antonius Op De Beek ,  Matthijs Adriaansz

    发明人： Rudolph Maria Snoeren ,  Johannes Catharina Antonius Op De Beek ,  Matthijs Adriaansz

    IPC分类号： G21K300

    CPC分类号： G21K1/10

    摘要： The present invention provides an X-ray examination apparatus, comprising an X-ray source, an X-ray detector, a filter arranged between said source and said detector, said filter comprising an array of filter elements having X-ray absorbtivities that can be adjusted by means of control voltages, a control circuit for supplying said control voltages to said filter elements, and an object support arranged between said filter and said detector, said station being adapted to support an object to be exposed to X-ray radiation emanating from said source, the transmitted X-ray radiation being detected by said detector, said control circuit being adapted to supply said control voltages in single-sequence fashion to groups of adjacent filter elements.

    摘要翻译： 本发明提供了一种X射线检查装置，包括X射线源，X射线检测器，布置在所述源和所述检测器之间的滤波器，所述滤波器包括具有可被调整的X射线吸收能力的滤波器元件阵列 通过控制电压提供用于将所述控制电压提供给所述滤波器元件的控制电路，以及布置在所述滤波器和所述检测器之间的对象支撑件，所述站适于支撑待暴露于从所述源发出的X射线辐射的物体 由所述检测器检测到所发射的X射线辐射，所述控制电路适于将所述控制电压以单次方式提供给相邻过滤元件的组。

    Method to measure the entrance dose of a radiology apparatus
    5.
    发明授权
    Method to measure the entrance dose of a radiology apparatus 失效
    测量放射学仪器入口剂量的方法

    公开(公告)号：US07162010B2

    公开(公告)日：2007-01-09

    申请号：US10497342

    申请日：2002-12-02

    申请人： Matthijs Adriaansz

    发明人： Matthijs Adriaansz

    IPC分类号： H05G1/42 ,  H05G1/44 ,  H05G1/20 ,  H01B15/02

    CPC分类号： G01T1/02 ,  G01T1/166

    摘要： The invention relates to a method to measure the entrance dose of a radiology apparatus of the type comprising an X-ray beam source, and a detector for the X-ray beam after it has passed an object of interest carried on a table placed between the source and the detector, wherein the X-ray beam source is placed above said table and wherein the distance between the X-ray beam source and the object is estimated taking into account the object's morphology, for determining said entrance dose. An attenuation-ratio is calculated depending on energy-levels of the X-ray beam leaving the X-ray beam source and arriving at the detector respectively, and that the object's thickness is calculated depending on said attenuation-ratio, said thickness together with the table-position defining said distance between the X-ray beam source and the object.

    摘要翻译： 本发明涉及一种用于测量包括X射线束源的放射学装置的入口剂量的方法，以及用于X射线束的检测器，其在经过放置在 源和检测器，其中X射线束源放置在所述台上方，并且其中考虑到物体的形态来估计X射线束源和物体之间的距离，以确定所述入射剂量。 根据离开X射线束源的X射线束的能量水平和衰减比来计算衰减比，并根据所述衰减比计算物体的厚度，所述厚度与 表格位置定义X射线束源和物体之间的距离。