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目的 通过对德州市密封型放射源的调查与监测,了解全市密封源的管理现状,提高放射卫生监督水平。方法 使用WF-9120型X、γ射线巡测仪和FD-71A型小型晶体闪烁辐射仪对密封源监测。用FJ-377型热释光剂量仪进行个人剂量监测。结果 全市密封源使用场所漏射线量符合国家标准(GB 1638-1996)。放射工作人员的平均个人剂量当量水平均未超出国家规定的年剂量当量限值的1/10(5 mSv)。结论 全市密封源使用单位基本全面贯彻落实了放射卫生的各项法规规定,促进了德州市的放射卫生工作的顺利开展。
Objective To investigate and monitor the sealed source of radioactive sources in Dezhou to understand the management status of sealed sources in the city and improve the supervision level of radioactive hygiene. Methods WF-9120 X, γ-ray detector and FD-71A small crystal radiometer were used to monitor the seal source. Personal dose monitoring with FJ-377 thermoluminescence dosimeter. Results The leakage source of the sealed source in the city was in line with the national standard (GB 1638-1996). The average individual dose equivalent level of radiation workers did not exceed 1/10 (5 mSv) of the national annual equivalent dose limit. Conclusion The unit of sealed source in the city basically implemented all the laws and regulations on radiation health basically and comprehensively and promoted the smooth implementation of the radiation health work in Dezhou.