2014~2017年浙江省某医院放射工作人员个人剂量监测结果分析(1)
摘要：目的 掌握醫院放射工作人员外照射个人剂量水平，为职业辐射防护提供参考依据。方法 以 2014年1月～2017 年12月医院放射工作人员外照射个人剂量值为分析对象，按照《电离辐射防护与辐射源安全基本标准》中的个人剂量限制为标准，依据《职业性外照射个人监测规范》的要求采用热释光方法，在工作时间连续监测全体放射工作人员外照射剂量，对不同工作场所的人员以工作地点为单位进行分组，比较外照射计量水平。结果 放射工作人员4年集体剂量当量为179.12人·mSv，人均年有效剂量为0.44 mSv/年，低于5 mSv/年，其中98.27% 的放射工作人员年有效剂量低于1 mSv/年;18类不同工作场所的放射工作人员中，4年人均年有效剂量最高的是CT室的工作人员，为0.48 mSv/年，其次是1号服务台的工作人员0.36 mSv/年，不同工作场所的工作人员年有效剂量存在较大差异。结论 浙江省某医院医疗放射工作人员的放射防护条件良好，但放射工作人员的防护仍应值得重视，同时应加强放射工作人员的自我保护意识。
关键词：外照射;个人剂量;热释光;放射防护;有效剂量;放射工作人员
, 百拇医药
中图分类号：R144 文献标识码：A DOI：10.3969/j.issn.1006-1959.2019.07.042
文章编号：1006-1959(2019)07-0140-03
Abstract：Objective To grasp the personal dose level of external radiation of hospital radiation workers， and provide reference for occupational radiation protection.Methods The personal doses of external radiation of hospital radiation workers from January 2014 to December 2017 were analyzed. According to the personal dose limit in "Basic Standards for Protection of Ionizing Radiation and Safety of Radiation Sources"， according to "Occupational External Irradiation" The requirements of the Personal Monitoring Regulations adopt the thermoluminescence method to continuously monitor the external exposure dose of all radiation workers during working hours， and group the personnel in different workplaces according to the work place， and compare the external irradiation measurement levels.Results The 4-year collective dose equivalent of radiation workers was 179.12 personomSv， and the annual effective dose per capita was 0.44 mSv/year， which was lower than 5 mSv/year， of which 98.27% of the radiation workers had an annual effective dose of less than 1 mSv/year; Among the radiation workers in 18 different workplaces， the highest annual effective dose per capita for 4 years is the staff of the CT room， which is 0.48 mSv/year， followed by the staff of the No. 1 service desk， 0.36 mSv/year， at different workplaces. There is a large difference in the annual effective dose of the staff.Conclusion The radiation protection conditions of medical radiation workers in a hospital in Zhejiang Province are good， but the protection of radiation workers should still be worthy of attention. At the same time， the awareness of self-protection of radiation workers should be strengthened., 百拇医药(苏锋 单国平)
关键词：外照射;个人剂量;热释光;放射防护;有效剂量;放射工作人员
, 百拇医药
中图分类号：R144 文献标识码：A DOI：10.3969/j.issn.1006-1959.2019.07.042
文章编号：1006-1959(2019)07-0140-03
Abstract：Objective To grasp the personal dose level of external radiation of hospital radiation workers， and provide reference for occupational radiation protection.Methods The personal doses of external radiation of hospital radiation workers from January 2014 to December 2017 were analyzed. According to the personal dose limit in "Basic Standards for Protection of Ionizing Radiation and Safety of Radiation Sources"， according to "Occupational External Irradiation" The requirements of the Personal Monitoring Regulations adopt the thermoluminescence method to continuously monitor the external exposure dose of all radiation workers during working hours， and group the personnel in different workplaces according to the work place， and compare the external irradiation measurement levels.Results The 4-year collective dose equivalent of radiation workers was 179.12 personomSv， and the annual effective dose per capita was 0.44 mSv/year， which was lower than 5 mSv/year， of which 98.27% of the radiation workers had an annual effective dose of less than 1 mSv/year; Among the radiation workers in 18 different workplaces， the highest annual effective dose per capita for 4 years is the staff of the CT room， which is 0.48 mSv/year， followed by the staff of the No. 1 service desk， 0.36 mSv/year， at different workplaces. There is a large difference in the annual effective dose of the staff.Conclusion The radiation protection conditions of medical radiation workers in a hospital in Zhejiang Province are good， but the protection of radiation workers should still be worthy of attention. At the same time， the awareness of self-protection of radiation workers should be strengthened., 百拇医药(苏锋 单国平)