摘要
目的 了解南通市某医院放射工作人员外照射个人剂量水平.方法 热释光方法监测2014-2021年南通市某医疗单位放射工作人员外照射个人剂量,分析不同职业类别放射工作人员受到的辐射剂量.结果 2014-2021年南通市某医疗单位集体有效剂量为556.7人·mSv,人均年有效剂量为0.59 mSv/a,年有效剂量最高的为介入放射学和核医学工作人员,不同职业类别年人均有效剂量的比较,差异有统计学意义(H=232.520,P＜0.05).结论 南通市某医疗单位放射工作人员年有效剂量符合国家标准要求,工作场所防护措施完善,需加强介入放射学和核医学工作人员的剂量监管.
Abstract
Objective To investigate the personal dose level of external irradiation among radiation workers in a hospital in Nantong City.Methods The rmoluminescence method was used to monitor the personal external radiation doses of radiation workers in the hospital from 2014 to 2021.The radiation doses received by radiation workers of different occupational categories were analyzed.Results The collective effective dose of the hospital in 8 years was 556.7 person·mSv and the average annual effective dose was 0.59 mSv/a.The highest annual effective dose was among the occupational categories of interventional radiology and nuclear medicine.The difference of annual effective dose in different occupational categories was statistically significant(H=23 2.520,P＜0.05).Conclusions The average annual effective dose of radiation workers in the hospital is in accordance with the relevant national standards.It is necessary to strengthen the dose supervision of interventional radiology and nuclear medicine workers.
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