轻型α/β放射性气溶胶实时采样与测量系统设计  

Development of a Light Real-Time Sampling and Monitoring System for α/β Radioactive Aerosol

作　　者：袁国军[1] 洪雅楠 刘阳[1] 曲延涛[1] YUAN Guojun;HONG Yanan;LIU Yang;QU Yantao(China Institute of Atomic Energy,Beijing 102413,China)

机构地区：[1]中国原子能科学研究院,北京102413

出　　处：《核电子学与探测技术》2023年第5期917-922,共6页Nuclear Electronics & Detection Technology

摘　　要：设计了一款轻型的α/β放射性气溶胶实时采样与测量系统。该系统通过微型泵对气溶胶进行实时取样,放射性物质富集在滤膜表面;PIPS探测器对滤膜进行直接测量,通过反符合设计,有效降低γ射线的干扰。在室外进行空气采样测试,该系统对α和β的探测下限为191.16 Bq/m^(3)和1133.27 Bq/m^(3)。该系统的质量不足5 kg,可搭载在无人机、机器人及其他装备上,方便在复杂环境及核应急环境下使用。A light real-time sampling and monitoring system forα/βradioactive aerosol was developed.Radioactive materials in aerosol are enriched on the filter card by micro-pumps drawing.Radiation on the filter card is detected by the PIPS detector directly with the anticoincidence design to reduce the interference of rays.The result of an outdoor air test showed:the detect limits of this system forαandβare 191.16 Bq/m^(3) and 1133.27 Bq/m^(3) respectively.The mass of monitor is less than 5 kg,which can be carried on drones,robots and other equipment for the application in the complex environment and nuclear emergency situation conveniently.

关 键 词：放射性气溶胶 实时采样与测量 轻型 

分 类 号：TL817[核科学技术—核技术及应用]