Neutron generator beam control system and control method based on controllable neutron source

The invention relates to a neutron generator beam control system and control method based on a controllable neutron source, and aims to solve the technical problems that neutron beams in a neutron generator are difficult to measure and difficult to control and adjust. The system comprises a single-chip microcomputer and a digital-to-analog converter. The single-chip microcomputer is provided with a PID control algorithm and receives a target flow value signal. The single-chip microcomputer is connected with a neutron tube of the neutron generator. The output of the single-chip microcomputer is connected with the input of the digital-to-analog converter, and the output of the digital-to-analog converter is connected with the input of the hot wire power supply module of the neutron generator. The method comprises the following steps: 1, collecting an actual target flow value of a neutron tube; 2, according to the actual target current value and the target target current value, the digital quantity of the actual