Abstract: Environmental monitoring spectrometer,as a new-type of equipment used for emergency response,was used in domestic NPPs after Fukushima nuclear accident. The improvement of emergency monitoring ability is restricted by the high cost of imported equipment. The domestic environmental monitoring spectrometer for emergency response which is developed in this work, is about half cost in batch manufacturing compared with imported equipment and it has excellent performance and specifications, as well as open software system. The developed environmental monitoring spectrometer can meet the need of normal operation and emergency monitoring in NPPs. It also has a good application prospect in other nuclear facility.

Key words: spectrometer development, emergency monitoring, environmental monitoring