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针对裂变 γ辐射能谱的特点 ,采用散射测量技术并选择散射角度 ( 70°) ,将裂变 γ连续谱压缩 ,利用 PIN型探测器对压缩后能段能谱响应平坦的特点 ,实现 γ辐射绝对测量。
According to the characteristics of the fission γ radiation spectrum, the scattering measurement technique was adopted and the scattering angle (70 °) was selected to compress the fission γ continuum. By using the PIN detector, the spectral response of the compressed energy section was flattened and the γ radiation absolute measuring.