基于6LiI（Eu）闪烁体的小型高效率中子探测器试制

摘要

A mini neutron detector with the dimension of φ25 mm ×20 mm is developed based on a 6 LiI( Eu) scintillator with a Hamamatsu S 3590-08 photodiode .The detector was used to detect thermal neutrons from a paraffin shielded 252 Cf neutron source and the detect efficiency to thermal neutron was calculated to be 95%with a resolution of thermal neutron peak about 16%.%使用6 LiI（ Eu）闪烁体和光电二极管试制了中子探测器，该探测器尺寸为D25 mm ×20 mm，测量252 Cf中子源慢化后的中子，可以得到明显的热中子峰，其分辨率为约16．3％，热中子探测效率约95％。