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目的调查2006~2009年周口市放射诊疗工作人员外照射个人剂量水平,为作好放射诊疗工作人员的健康监护提供信息。方法依据GBZ128-2002《职业性外照射个人监测规范》的方法进行。结果 4 a间共监测放射诊疗工作人员2 083人次,人均年剂量当量为1.39mSv,集体剂量当量为2891.37人·mSv,从事医用诊断X射线、放射治疗、核医学、介入治疗4类工作的年有效剂量分别为1.39,1.23,1.77,1.40mSv。结论周口市绝大多数放射诊疗工作人员剂量水平在安全范围内。
Objective To investigate the individual dose level of radiation exposure staff in Zhoukou City from 2006 to 2009 to provide information for the health supervision of radiation clinic staff. Methods According to GBZ128-2002 “occupational exposure to personal monitoring norms” approach. Results A total of 2 083 radiological clinic staff were monitored during the 4 years. The annual equivalent dose per capita was 1.39mSv and the collective dose equivalent was 2891.37 persons · mSv. The number of people engaged in the four categories of medical diagnosis of X-ray, radiation therapy, nuclear medicine and interventional therapy Effective doses were 1.39,1.23,1.77,1.40mSv. Conclusion Zhoukou City, the vast majority of radiation clinic staff dose levels within the safe range.