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    • 9. 发明专利
    • X-ray sensor signal processing circuit and x-ray sensor signal processing method
    • X射线传感器信号处理电路和X射线传感器信号处理方法
    • JP2003307568A
    • 2003-10-31
    • JP2003060781
    • 2003-03-07
    • Hitachi Ltd株式会社日立製作所
    • KAMIMURA HIROSHIIZUMI SHIGERUKITAGUCHI HIROSHIYAMAKOSHI ATSUSHISATO KATSUTOSHI
    • G01N23/04G01T1/17G01T1/24H04N5/32
    • PROBLEM TO BE SOLVED: To provide an X-ray sensor signal processing circuit and an X-ray sensor signal processing method for finding an accurate value proportional to the average number of photons in X rays even if the number of incoming photons is small by simplifying the hardware construction of the X-ray sensor signal processing circuit and removing a dark current generated in the X-ray sensor.
      SOLUTION: This X-ray sensor signal processing circuit for processing output signals of the X-ray sensor used for detecting pulsed X rays launched from an accelerator and transmitted by a tested body, is equipped with a first resistor one end of which is connected to the X-ray sensor and the other end of which is grounded, a first capacitor one end of which is connected to a point where the X-ray sensor is connected to the first resistor, an OP amplifier whose inverting input is connected to the other end of the first capacitor, and a second resistor and a second capacitor connected in parallel to the OP amplifier.
      COPYRIGHT: (C)2004,JPO
    • 要解决的问题:为了提供X射线传感器信号处理电路和X射线传感器信号处理方法,用于在X射线中找到与光子的平均数成比例的精确值,即使入射光子的数量为 通过简化X射线传感器信号处理电路的硬件结构并消除在X射线传感器中产生的暗电流,这很小。 解决方案:该X射线传感器信号处理电路,用于处理用于检测由加速器发射并由被测体传递的脉冲X射线的X射线传感器的输出信号,该X射线传感器信号处理电路的一端装有第一电阻器 连接到X射线传感器并且其另一端接地,第一电容器的一端连接到X射线传感器连接到第一电阻的点,反相输入端连接的OP放大器 到第一电容器的另一端,以及与OP放大器并联连接的第二电阻器和第二电容器。 版权所有(C)2004,JPO