用于探测来自导弹羽烟的紫外辐射的预警系统需要大面积、宽视场的探测器。这种探测器除了要做到可靠性高和结构紧凑之外,最好还能敏感230nm～280nm谱区的导弹羽烟+紫外辐射,以降低虚警率。采用吸收型材料的现代滤光片比较昂贵,因为它们需要大的硫酸镍单晶。另外,已经与大的晶体一同使用的太阳盲光电倍增管也比较昂贵。因此,技术和资金方面的制约 An early warning system for detecting UV radiation from missile plumes requires a large area, wide field of view detector. In addition to this detector to achieve high reliability and compact structure, it is best to sensitive 230nm ~ 280nm spectral smoke plume + UV radiation to reduce the false alarm rate. Modern filters using absorptive materials are more expensive because they require large nickel sulfate single crystals. In addition, solar blind photomultipliers that have been used with larger crystals are also more expensive. Therefore, technical and financial constraints