【摘要】 针对在国际热核聚变实验堆(ITER)运行参数下的聚变堆中子通量测量，设计并研制了一套具备一定耐辐照能力的宽量程中子通量监测(NFM)系统。该系统采用裂变室对聚变中子进行探测，后端电子设备主要由前置放大器、信号处理单元、高稳定性程控电源和温度监测单元等组成。目前，NFM系统电子学原型部件已完成研制，完成了信号调理、鉴别、采样和处理的全链路调试。在HL-2A装置上对该系统的验证实验结果与预期的一致，表明该系统满足设计要求。更多还原

【Abstract】 A neutron flux monitor(NFM) system is developed for fusion reactors with the operation parameters of International Thermonuclear Experimental Reactor(ITER), which can adapt to a wide range of neutron yields and has a certain radiation resistance capability. This system utilizes fission chambers to detect fusion neutrons and the back-end electronics are mainly composed of pre-amplifiers, signal processing units, high stability program-controlled power supplies, and temperature monitoring units. At present, the prototype of NFM system electronics has been developed, realizing the entire process of signal conditioning, discrimination, sampling, and processing. Partial testing work has been carried out on the HL-2A tokamak, and its result meets the design requirements.更多还原