Experimental study on neutron yield monitor of neutron tube

Neutron yield is affected by many factors, and even two neutron tubes at the same type. which are working under the same parameters, often have different neutron yield because the production process can not be kept exactly the same. What's more, the number of neutron yield are often monitored and characterized by neutron monitor, and the distribution of the number to neutron yield will change if the performance of its monitor has changed. Take Model ZFD-1 Neutron Generator developed by Northeast Normal University as an example, a brief description of the neutron generation device and the receiving device. The distribution of neutrons in the neutron tube axial center line under several suitable accelerator voltages and the key factor that influenced the receiving performance of the 3He gas-based neutron monitor were also studied in the experiment. Some fitting curves and its fitting function relationship were given by processing the experimental data. So that we can calibrate the yield of this (D-D) reaction neutron tube in the neutron tube axial center line in order to carry out some practical applications more conveniently. (authors)