介绍了在神光Ⅲ原型上建立大面积中子闪烁探测器阵列用于诊断压缩密度的具体方法,其中包括物理实验原理、探测器工作原理、电子学系统设计和探测器系统对靶室等环境的要求。给出了各部件的具体参数,分析了影响探测系统性能的主要因素,并提出了建立大面积中子闪烁探测器阵列的实现途径。 This paper introduces the specific methods to diagnose the compression density of large area neutron scintillation detector array on SG prototype, including the principle of physical experiment, the working principle of detector, the design of electronic system and the environment of target room by detector system Request. The specific parameters of each component are given, the main factors affecting the performance of the detection system are analyzed, and the way to establish a large area neutron scintillation detector array is proposed.