A neutron monitor for D-T neutron generator in the PGNAA-based online measurement system

作者：Qing Shan; Chu Shengnan; Ling Yongsheng; Cai Pingkun; Jia Wenbao^*

来源：Radiation Physics and Chemistry, 2017, 135: 142-145.

DOI：10.1016/j.radphyschem.2017.01.015

• Neutron detector
• Plastic scintillator detector
• Cherenkov detector
• D-T neutron generator

A was proposed and optimized by the GEANT4 Monte Carlo simulation toolkit in our previous studies. The calculation method was also described for calculating the neutron flux in the preset condition. This paper reports the manufacturing of the prototype detector. Experiments are conducted to validate the feasibility of this detector. A D-T neutron generator and a Co-60 gamma-ray source are used in the experiments. The designed detector and a He-3 proportional counter are simultaneously used to monitor the yield of the D-T neutron generator. A more universal calculation method is developed to enable the application of this detector to common conditions. The experimental results show that the performance of the designed detector is comparable to that of the He-3 proportional counter. The relative deviations between their normalized counts are less than 5%.

• 出版日期2017-6
• 单位南京航空航天大学