低功耗一体化机载式γ谱仪的设计

摘要

介绍了一种机载式γ谱仪的工作原理、总体结构和硬件设计思路。该能谱仪采用数字信号处理技术和基于现场可编程门阵列（ FPGA）的数据采集技术，具有体积小、功耗低、精度高和扩展性好的优点，可挂载于小型飞行器进行自然环境γ能谱测量和γ核素识别，同时可测量γ剂量。该谱仪实现了一体化设计，具有无线数据的收发功能，可实现多任务条件下对γ能谱的检测。%In the study , a design scheme of an airborne γspectrometer was described , including its working principle , overall architecture and design ideas for the hardware .Digital signal processing and data acquisition through field-programmable gate array ( FPGA) were adopted for the spectrometer , so that it can be character-ized by small size , low power consumption , high accuracy and good scalability .This kind of spectrometer can be mounted in a small aircraft for γspectroscopy measurement and γradionuclide identification around the natu-ral environment , and also for the measurement of γdose simultaneously .This spectrometer was an integrated design.It can be used as a wireless data transceiver , and can detect γspectroscopy under multi -task condi-tions.