核医学场所空气中 I-131浓度监测及工作人员内照射剂量评价的探究  

Exploration of I-131 concentration monitoring in the air of nuclear medicine facilities and evaluation of internal radiation dose for staff

作　　者：俞添虹 YU Tianhong(Shenzhen Ruida Testing Technology Co.,Ltd.,Shenzhen 518000,China)

机构地区：[1]深圳市瑞达检测技术有限公司,广东深圳518000

出　　处：《中国高新科技》2024年第22期75-76,93,共3页

摘　　要：初步了解核医学场所空气中I-131浓度,以及工作人员体内可能受到放射性核素污染的情况,评价工作人员内照射剂量。选择某地区3家大型综合性医院和专科医院的I-131操作人员共56名作为调查对象。通过空气中I-131浓度监测法、对I-131活度浓度进行计算,并估算年有效剂量。3家医院核医学场所空气中均有一定量的I-131,判定工作人员需要进行内照射监测。发现核医学科直接操作核素的56名工作人员均有内照射风险。核医学场所空气中I-131浓度监测工作十分重要,工作人员内照射剂量评价不容忽视,应当结合工作量,选择相应的监测周期,并根据空气采样分析,对核医学场所工作人员的内照射剂量进行综合评价。To preliminarily understand the concentration of I-131 in the air of nuclear medicine facilities,as well as the possible contamination of radioactive nuclides in the bodies of workers,and to evaluate the internal radiation dose of workers.A total of 56 I-131 operators from three large comprehensive hospitals and specialized hospitals in a certain region were selected as the survey subjects.By monitoring the concentration of I-131 in the air,calculating the activity concentration of I-131,and estimating the annual effective dose.There was a certain amount of I-131 in the air of nuclear medicine facilities in hospitals.It was determined that the staff needed to undergo internal radiation monitoring.56 staff members in the nuclear medicine department who directly operate nuclides were found to have internal exposure risks.Monitoring the concentration of I-131 in the air of nuclear medicine facilities is very important,and the evaluation of the internal radiation dose of staff cannot be ignored.The corresponding monitoring period should be selected based on the workload,and a comprehensive evaluation of the internal radiation dose of nuclear medicine personnel should be conducted based on air sampling analysis.

关 键 词：核医学场所 I-131浓度监测 内照射剂量 评价 

分 类 号：R144[医药卫生—公共卫生与预防医学]