X-ray examination apparatus including a control loop for adjusting the X-ray flux
    1.
    发明授权
    X-ray examination apparatus including a control loop for adjusting the X-ray flux 失效
    X射线检查装置包括用于调整X射线通量的控制回路

    公开(公告)号:US06289078B1

    公开(公告)日:2001-09-11

    申请号:US09466410

    申请日:1999-12-17

    IPC分类号: H05G164

    CPC分类号: H05G1/36

    摘要: An X-ray examination apparatus includes an X-ray source (1) for emitting an X-ray beam, an X-ray detector (6) for detecting an X-ray image and converting it into an optical image, and a video extractor (8) which is coupled to the X-ray detector (6) via optical coupling means (9). The optical coupling means (9) is provided with an optical pick up (11) for feeding a fraction of the light flux to a photosensor (12) which produces a control signal for adjusting the X-ray flux from the X-ray source (1). The photosensor (6) is provided with an array of pixels, with weighting means for the signals detected in or by each of said pixels, and with means for determining a mean value of the detected and weighted signals, yielding a control signal which is fed back in order to adjust the X-ray flux from the X-ray source (1).

    摘要翻译: X射线检查装置包括用于发射X射线束的X射线源(1),用于检测X射线图像并将其转换为光学图像的X射线检测器(6),以及视频提取器 (8),其通过光耦合装置(9)耦合到X射线检测器(6)。 光学耦合装置(9)设置有用于将光束的一部分馈送到光电传感器(12)的光学拾取器(11),该光电传感器产生用于调整来自X射线源的X射线通量的控制信号 1)。 光传感器(6)设置有像素阵列,具有用于在每个所述像素中检测到的信号的加权装置,以及用于确定检测和加权信号的平均值的装置,产生被馈送的控制信号 以从X射线源(1)调整X射线通量。