摘要
针对高强度脉冲辐射测量中常用的闪烁体探测器,对其直径为50 mm、厚度分别为5、8、10、15、20、25、30、40 mm的ST401塑料闪烁体进行了DD、DT中子灵敏度刻度,并采用Geant4对其相对中子探测效率进行了模拟研究;并由理论计算给出了直径为90 mm、不同厚度闪烁体的相对中子探测效率,厚度为50 mm、不同直径闪烁体的相对中子探测效率。
Focuses on the scintillation neutron detector using in the high pulsed radiation field,the neutron efficiencies of eight Plastic Scintillator ST401( 50 mm in diameter and 5 mm,8 mm,10 mm,15 mm,20 mm,25 mm,30 mm,40 mm in thickness respectively) were determined in D-D and D-T neutron flux. And the relative neutron efficiencies of Plastic Scintillator ST401( 90 mm in diameter and different thickness,50 mm in thickness and different diameters) were determined by Geant4.
引文
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