A METHOD OF LOW ENERGY IMAGING IN THE PRESENCE OF HIGH ENERGY RADIATION
    154.
    发明申请
    A METHOD OF LOW ENERGY IMAGING IN THE PRESENCE OF HIGH ENERGY RADIATION 审中-公开
    低能量成像在高能量辐射存在下的方法

    公开(公告)号:WO2010099621A1

    公开(公告)日:2010-09-10

    申请号:PCT/CA2010/000317

    申请日:2010-03-05

    CPC classification number: A61B6/5282 A61N5/1049 A61N2005/1061

    Abstract: An apparatus and method obtain an image of an object from a first radiation source in the presence of a second radiation source. The first radiation source is directed at a first side of the object while the second radiation source is directed at the second side of the object. At least one portion of the radiation is detected at the second side of the object. A first signal is produced based on the at least one portion of detected radiation. The first signal has a first radiation component and a second radiation component. At least one other portion of radiation at the second side of the object is filtered and then detected. A second signal is produced based on the detected filtered radiation. The second signal has at least one of a filtered first radiation component and a filtered second radiation component. Then a third signal is produced from the first and second signals. The third signal is a representation of a first radiation component.

    Abstract translation: 一种装置和方法在存在第二辐射源的情况下从第一辐射源获得物体的图像。 第一辐射源指向物体的第一侧,而第二辐射源指向物体的第二侧。 在物体的第二侧检测到辐射的至少一部分。 基于检测到的辐射的至少一部分产生第一信号。 第一信号具有第一辐射分量和第二辐射分量。 在物体的第二侧的至少一个其他辐射部分被过滤,然后被检测。 基于检测到的过滤辐射产生第二信号。 第二信号具有滤波的第一辐射分量和滤波的第二辐射分量中的至少一个。 然后从第一和第二信号产生第三信号。 第三信号是第一辐射分量的表示。

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