14C放射源自动化活度测量装置研制OA

To address the problems of low efficiency,poor consistency,and high radiation exposure risk associated with manual,sequential calibration measurements in the quality control of carbon-14 radioactive sources used in ambient particulate matter monitors,an automated activity measurement system was developed.The device integrates an automatic sample loading tray,a high-precision activity measurement unit,a sorting actuator based on stepper motors and suction tips,and intelligent control software.By using a dedicated algorithm,it enables rapid activity calculation and automatic pass/fail judgment,and physically sorts out nonconforming products.The system can process up to 100 radioactive sources in a single batch,achieving a gauge repeatability and reproducibility(R&R)value of 13.1%,a number of distinct categories(NDC)of 16,and a sorting accuracy exceeding 99.0%.Compared with manual operation,the efficiency is improved by 49.2%,while human intervention and radiation exposure risks are significantly reduced.The system realizes fully automated,high-throughput activity measurement of carbon-14 sources,greatly enhancing inspection efficiency and consistency,and providing reliable technical support for ensuring the accuracy of environmental monitoring data at the source.