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    • 4. 发明授权
    • Fast neutron radiography system
    • 快中子射线照相系统
    • US4535246A
    • 1985-08-13
    • US405776
    • 1982-08-06
    • Gad Shani
    • Gad Shani
    • G01T3/06G01T3/00
    • G01T3/06
    • A system for gamma-ray interference-free fast-neutron radiography is provd. The system comprises a radiation detector adapted to distinguish between neutron and gamma radiation, an imaging device transducing object-point related signals generated by the object-modified neutron and gamma radiation in the radiation detector. The system also includes a pulse-shaped discrimination and gating device for passing only neutron-induced image-producing pulses so as to filter out the gamma-ray induced, interfering signals.
    • 提供了一种无伽马射线干涉快中子射线照相系统。 该系统包括适于区分中子和伽马辐射的辐射检测器,成像装置在辐射检测器中传导由物体修饰的中子产生的与物体相关的信号和伽马辐射。 该系统还包括用于仅通过中子诱导的图像产生脉冲的脉冲形状鉴别和门控装置,以便滤除伽马射线引起的干扰信号。