Amorphous selenium flat panel x-ray imager for tomosynthesis and static imaging
    12.
    发明授权
    Amorphous selenium flat panel x-ray imager for tomosynthesis and static imaging 有权
    非晶硒平板X射线成像仪用于断层合成和静态成像

    公开(公告)号:US07233005B2

    公开(公告)日:2007-06-19

    申请号:US11341925

    申请日:2006-01-27

    IPC分类号: G01T1/24

    CPC分类号: H01L27/14676 H01L31/115

    摘要: A flat panel x-ray imager exhibiting reduced ghosting effects and overvoltage protection by appropriate leakage current characteristics of the thin-film transistor array. A top electrode of a suitable material is directly on a non-insulating organic layer. The organic layer is directly on an amorphous selenium-based charge generator layer allowing charge transport across the layer, thereby reducing ghosting. The thin-film transistors have leakage current that rises relatively slowly with voltage across the transistor within a range that matches exposure through an object being imaged but rises at a sufficiently higher rate within a higher range to provide protection even when a corresponding region of the charge generator layer receives greater amounts of x-rays.

    摘要翻译: 平板X射线成像仪通过薄膜晶体管阵列的适当的泄漏电流特性显现出减小的重影效应和过电压保护。 合适材料的顶部电极直接在非绝缘的有机层上。 有机层直接位于基于无定形硒的电荷发生器层上,允许电荷跨越层传输,从而减少重影。 薄膜晶体管具有相对缓慢升高的漏电流,该电流在与被成像的物体匹配的曝光的范围内相对缓慢地升高,但是在更高的范围内以足够高的速率上升,从而即使当电荷的相应区域 发电机层接收更大量的X射线。

    Amorphous selenium flat panel x-ray imager for tomosynthesis and static imaging
    13.
    发明申请
    Amorphous selenium flat panel x-ray imager for tomosynthesis and static imaging 有权
    非晶硒平板X射线成像仪用于断层合成和静态成像

    公开(公告)号:US20060180768A1

    公开(公告)日:2006-08-17

    申请号:US11341925

    申请日:2006-01-27

    IPC分类号: G01T1/24

    CPC分类号: H01L27/14676 H01L31/115

    摘要: A flat panel x-ray imager exhibiting reduced ghosting effects and overvoltage protection by appropriate leakage current characteristics of the thin-film transistor array. A top electrode of a suitable material is directly on a non-insulating organic layer. The organic layer is directly on an amorphous selenium-based charge generator layer allowing charge transport across the layer, thereby reducing ghosting. The thin-film transistors have leakage current that rises relatively slowly with voltage across the transistor within a range that matches exposure through an object being imaged but rises at a sufficiently higher rate within a higher range to provide protection even when a corresponding region of the charge generator layer receives greater amounts of x-rays.

    摘要翻译: 平板X射线成像仪通过薄膜晶体管阵列的适当的泄漏电流特性表现出减小的重影效应和过电压保护。 合适材料的顶部电极直接在非绝缘的有机层上。 有机层直接位于基于无定形硒的电荷发生器层上,允许电荷跨越层传输,从而减少重影。 薄膜晶体管具有相对缓慢升高的漏电流,该电流在与被成像的物体匹配的曝光的范围内相对缓慢地升高,但是在更高的范围内以足够高的速率上升,从而即使当电荷的相应区域 发电机层接收更大量的X射线。