目的通过对料位计放射工作场所辐射水平的检测与评价,了解其防护现状,为做好放射防护管理和保护放射工作人员的身体健康提供指导。方法按照国家标准的有关要求,使用便携式X、γ剂量率仪和中子剂量仪对料位计工作场所辐射水平进行检测,并进行评价。结果 5个放射性料位计工作场所中,2个工作场所距料位计外表面5 cm及100 cm处剂量当量率满足“对人员的活动范围不限制”的控制要求,2个工作场所满足“在距源容器外表面1 m的区域内很少有人停留”的控制要求,1个工作场所应加强相关管理,“在距源容器外表面3 m的区域内不可能有人进入或放射工作场所设置了监督区”。结论应定期对料位计工作场所进行检测,根据检测结果采取相关防护措施,并根据国家规定建立完善的放射防护管理规章制度,以保护放射工作人员的健康。 Objective To detect and evaluate the level of radiation of the level meter in the workplace and understand the status quo of its protection so as to provide guidance for radiological management and protection of the health of radiation workers. Methods According to the requirements of national standards, the portable X, γ dose rate meter and neutron dosimeter were used to detect and evaluate the radiation level of the level meter workplace. Results In the workplace of 5 radioactive material level meters, the dose equivalence rate at 5 cm and 100 cm from the external surface of the material level gauge at the two workplaces met the control requirements of “no restriction on the staff’s activity range” and two workplaces Meet the control requirements of “few people stay in the area 1 m from the outer surface of the source container”, and 1 workplace should be strengthened to manage “no one can enter in the area 3 m away from the outer surface of the source container Or radioactive workplace set up surveillance area. ” Conclusion The level meter should be regularly tested in the work place and protective measures should be taken according to the test results. The rules and regulations on radiological protection and management should be established in accordance with state regulations to protect the health of radiation workers.