Neutron fluence online test system based on laser diode and neutron fluence online test method thereof

The invention belongs to the field of radiation detection, and relates to a neutron fluence online test system based on a laser diode and a neutron fluence online test method thereof. The system comprises the laser diode, a current source, an optical power meter and a computer. The input end of the laser diode is connected with the current source through a current transmission line. The output end of the laser diode is connected with the optical power meter through an optical fiber. The current source and the optical power meter are connected with the computer. The neutron fluence online test method has the integrated performance of being small in detector size, easy to operate, great in range of linearity and high in gamma radiation resistance and can realize online testing. 本发明属于辐射探测领域，涉及种基于激光二极管的中子注量在线测试系统及方法。该系统包括激光二极管、电流源、光功率计和计算机；激光二极管的输入端通过电流传输线与电流源相连，激光二极管的输出端通过光纤与光功率计相连；电流源和光功率计均与计算机相连。本发明提供的中子注量在线测试方法具备了探测器体积小、易于操作、线性范围好、抗γ辐射能力强且能够实现在线测试的综合性能。