口腔放射工作人员连续10年的职业外照射个人剂量分析  

Occupational external exposure dose analysis of oral and maxillofacial radiation staffs monitored for 10 years

作　　者：李国文 刘依 崔敏毅[1] 曾东林[1] Li Guowen;Liu Yi;Cui Minyi;Zeng Donglin(Hospital of Stomatology,Guanghua School of Stomatology,Sun Yat-sen University,Guangdong Provincial Key Laboratory of Stomatology,Guangzhou 510055,China)

机构地区：[1]中山大学附属口腔医院,光华口腔医学院,广东省口腔医学重点实验室,广州510055

出　　处：《中华口腔医学研究杂志（电子版）》2021年第5期292-295,共4页Chinese Journal of Stomatological Research(Electronic Edition)

基　　金：广东省自然科学基金(2018A0303130130)。

摘　　要：目的研究口腔放射工作人员的个人外照射剂量,为口腔放射防护管理提供科学依据。方法对中山大学附属口腔医院的放射诊断医生和放射技术人员进行个人剂量监测,由第三方机构采用热释光个人剂量检测法对个人剂量进行检测,收集2009—2018年共10年内所检测的434人次的个人剂量数据,并采用独立样本t检验进行统计分析。结果 2009—2018年期间,个人年有效剂量最大值为0.46 mSv,最小值为0.20 mSv,远低于国家规定的20 mSv限定值;人均年有效剂量最大值为0.28 mSv,最小值为0.20 mSv;平均年有效剂量为0.22 mSv。诊断医生的平均年有效剂量0.21 mSv,放射技术人员的平均年有效剂量0.23 mSv,差异无统计学意义(t=-1.44,P=0.17)。结论严格遵守放射诊疗相关的辐射防护法律法规可以确保口腔放射工作人员的外照射剂量处于非常低的水平。Objectives To detect individual effective dose of oral and maxillofacial radiation staffs and to provide scientific evidence for management of radiation protection. Methods Monitoring of the individual external exposure dose of the diagnostic radiologists and radiological technicians was performed by a third party seasonally. The data of individual dose of the radiation workers during 2009-2018 were collected and analyzed by independent-samples t test of SPSS 19.0 software. All of the individual dose results were monitored by thermoluminescent dosimeter. Results The maximal and minimal annual individual effective dose in 10-year was 0.46 mSv and 0.20 mSv,respectively. The annual individual effective dose was much lower than the limiting value of 20 mSv ruled by government. The maximal effective average annual individual effective dose was 0.28 mSv,and the minimal was 0.20 mSv. The average annual individual effective dose in 10-year was 0.22 mSv. The average annual individual effective dose of diagnostic radiologists was 0.21 mSv,and that of radiological technicians was 0.23 mSv. There was no statistical significance between the average annual individual effective dose of diagnostic radiologists and radiological technicians(t =-1.44,P = 0.17). Conclusion Strictly complying with the regulation of radiation protection could keep the average annual individual effective dose at a very low level.

关 键 词：放射科 医院 外照射剂量学 个人剂量 放射防护 

分 类 号：R144.1[医药卫生—公共卫生与预防医学]