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    • 5. 发明申请
    • APPARATUS AND METHODS FOR GAMMA RAY DETECTION
    • 用于伽马射线检测的装置和方法
    • WO2015104529A1
    • 2015-07-16
    • PCT/GB2014/053651
    • 2014-12-10
    • SYMETRICA LIMITED
    • RAMSDEN, David
    • G01T1/203
    • G01T1/2033G01T1/2002G01T1/2018G01T1/203
    • A gamma ray detector is described. The detector comprises a plastic scintillation body for receiving gamma rays and generating photons in response thereto. The scintillation body is in the form of a truncated cone defined by a base surface and an end surface separated along an axis of extent of the scintillation body with a lateral surface extending therebetween. A photodetector is optically coupled to the base surface of the scintillation body so as to detect photons generated by gamma ray interaction events within the scintillation body. A specular reflector is provided adjacent, but separated from, the lateral surface of the scintillation body so as to reflect photons that leave the scintillation body through the lateral surface back into the scintillation body.
    • 描述了伽马射线检测器。 检测器包括用于接收伽马射线并响应于此产生光子的塑料闪烁体。 闪烁体是由基底表面和沿着闪烁体的范围的轴线分离的端面限定的截头圆锥体,其中侧面在其间延伸。 光电检测器光学耦合到闪烁体的基面,以便检测由闪烁体内的γ射线相互作用事件产生的光子。 镜面反射器被设置成与闪烁体的侧表面相邻但与之分开,从而将通过侧面离开闪烁体的光子反射回闪烁体。
    • 10. 发明申请
    • DEVICE AND METHOD FOR DISCRIMINATING CERNKOV AND SCINTILLATION RADIATION
    • 用于分辨CERNKOV和SCINTILLATION辐射的装置和方法
    • WO2007131771A1
    • 2007-11-22
    • PCT/EP2007/004310
    • 2007-05-15
    • ELDIM SALEROUX, ThierryBOHER, Pierre
    • LEROUX, ThierryBOHER, Pierre
    • G01T1/203G01T1/22G01T1/29
    • G01T1/169G01T1/20G01T1/22
    • The invention relates to a device for discriminating Cerenkov and scintillation radiation and a beam inspection device, comprising an inspection head comprising a scintillator (13) and at least one ionizing radiation diffuser block (15a, 15b), a device (1) for discriminating Cerenkov and scintillation radiation, and an imaging system (17) for forming an image from at least a part of the inspection head. The invention furthermore relates to a corresponding method. In order to suppress spurious Cerenkov radiation contributions to the scintillation radiation the device comprises periodically arranged first and second filters (3, 5), having different relative absorption properties with respect to scintillation radiation and ionizing radiation. The invention also relates to an imaging apparatus comprising means for reducing parasitic contributions to a signal of interest, wherein the apparatus comprises a modulation mask for modulating a signal of interest, wherein, in particular, the signal of interest is the signal illuminating the object or the signal emitted or reflected from the object, and an image analyzing means configured to remove - at least partially - parasitic contributions added to the modulated signal of interest based on the shift of the signal of interest towards higher frequencies due to the modulation.
    • 本发明涉及一种用于鉴别切伦科夫和闪烁辐射的装置和一个束检查装置,包括一个包括闪烁体(13)和至少一个电离辐射漫射块(15a,15b)的检查头,一个用于鉴别切伦科夫 和闪烁辐射,以及用于从所述检查头的至少一部分形成图像的成像系统(17)。 本发明还涉及一种相应的方法。 为了抑制对闪烁辐射的假科伦科夫辐射贡献,该装置包括周期性排列的第一和第二滤光器(3,5),其相对于闪烁辐射和电离辐射具有不同的相对吸收特性。 本发明还涉及一种成像设备,其包括用于减少对感兴趣信号的寄生贡献的装置,其中所述装置包括用于调制感兴趣信号的调制掩模,其中特别地,感兴趣的信号是照亮对象的信号或 从对象发射或反射的信号,以及图像分析装置,被配置为基于由于调制而对感兴趣的信号向较高频率的偏移,去除至少部分地添加到感兴趣的调制信号的寄生输入。