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组合闪烁探测系统由“Pb过滤片加塑料闪烁探测器”组成.采用直流标定方法,实验研究了ST401,ST1422,ST1423组合探测系统对0.565—14.16MeV能量范围的6个能点的中子灵敏度,得到了探测系统的中子灵敏度随Pb过滤片厚度的变化、随闪烁体厚度的变化和随中子能量的变化关系.利用理论计算和实验测量结果相结合,获得了3种组合闪烁探测系统的中子灵敏度能量响应曲线.
The combinatorial scintillation detection system consists of “Pb filter plus plastic scintillation detector”. The DC calibration method was used to study the neutron sensitivities of ST401, ST1422 and ST1423 combined detection systems to six energy points in the energy range of 0.565-14.16 MeV, The sensitivity of neutron detection system with Pb filter thickness changes with the thickness of the scintillator and the relationship with the changes of neutron energy.By combining the theoretical calculation and experimental measurement results, three kinds of combined scintillation detection system Neutron Sensitivity Energy Response Curve.