论文部分内容阅读
针对脉冲辐射场高强度裂变中子测量的特点,设计了降低灵敏度的狭缝闪烁探测系统,初步研究了系统的2.5MeV中子灵敏度。实验结果表明:由狭缝屏蔽准直器和闪烁探测器组成的新型狭缝闪烁探测系统,可使传统的直照探测模式的下限灵敏度降低一个量级,拓宽了闪烁探测器在脉冲辐射场中子测量中的应用。
Aiming at the characteristics of high intensity fission neutron measurement of pulsed radiation field, a slit scintillation detection system with reduced sensitivity was designed, and the sensitivity of 2.5 MeV neutron system was studied. The experimental results show that the new slit scintillation detection system composed of the slit shielding collimator and the scintillation detector can reduce the lower limit sensitivity of the conventional direct-beam detection mode by an order of magnitude and widen the scope of the scintillation detector in the pulse radiation field Sub-measurement applications.