Author/Authors :
Zhang، نويسنده , , Qianmei and Wang، نويسنده , , Qunshu and Xie، نويسنده , , Zhongsheng and Cao، نويسنده , , Jinyun and Niu، نويسنده , , Shengli and Ouyang، نويسنده , , Xiaoping، نويسنده ,
Abstract :
A new scintillating-fiber-array neutron detector has been developed. The detector consists of a bee-hive-shaped lead absorber, a scintillating fiber array, a light guide, a filter and a photomultiplier tube. The experimental results show that the new detectorʹs neuron-to-gamma sensitivity ratio is improved about six times compared to traditional plastic scintillation detectors to 2.5 MeV neutrons and 1.25 MeV gamma rays. Hence, the detector should be very useful in the measurements of pulsed neutrons from fission reactions in a neutron–gamma mixed field.
Keywords :
Scintillating fiber , Neutron measurement , Neutron-to-gamma sensitivity ratio , Neutron–gamma mixed field
