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目的 了解江门市放射工作人员职业外照射的个人剂量水平。方法 按《放射工作人员个人剂量监测方法》(GB5 2 94-85 )要求 ,监测周期为 3个月 ,一共 4期。结果 江门市放射工作人员人均年剂量当量为 1 17mSv/a ,其中医用诊断X射线从业人员为 1 40mSv/a ,工业探伤为 0 41mSv/a ,密封源其它应用为 0 32mSv/a ,核医学为 1 16mSv/a ,,放射治疗为 1 15mSv/a ;而在医用诊断X射线中 ,市级医院为 0 5 8mSv/a ,县级医院为 0 74mSv/a ,,镇医院为 2 49mSv/a。结论 江门市放射工作人员人均年剂量当量远低于个人剂量限值 ,镇医院从业人员的人均年剂量当量远高于县、市级医院
Objective To understand the personal radiation dose of radiation workers in Jiangmen City. Methods According to the requirements of “Radiation Workers Individual Dose Monitoring Method” (GB5 2 94-85), the monitoring period is 3 months, a total of 4 periods. Results The average annual dose equivalent of radiological workers in Jiangmen City was 1 17mSv / a, including 140mSv / a for medical diagnostic X-ray workers, 0 41mSv / a for industrial testing and 0 32mSv / a for other sealed sources. The nuclear medicine was In the medical diagnostic X-ray, the municipal hospital was 0 58mSv / a, the county-level hospital was 74mSv / a, and the town hospital was 499mSv / a. Conclusion The per capita annual equivalent dose of radiation workers in Jiangmen is much lower than the individual dose limit. The equivalent annual per capita equivalent dose of practitioners in town hospitals is much higher than that of county and municipal hospitals