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采用直流刻度方法,实验研究了ST401、ST1422或ST1423塑料闪烁体加光电倍增管组成的探测器的裂变中子灵敏度,获得了中子灵敏度随中子能量的变化关系。实验结果与计算进行了比较,在不确定度范围内符合很好。
The DC neutron sensitivity of the detector composed of ST401, ST1422 or ST1423 plastic scintillator and photomultiplier tube was experimentally studied by using the direct current scale method. The relationship between neutron sensitivity and neutron energy was obtained. The experimental results are compared with the calculation, which is in good agreement with the uncertainty.