131I核素治疗操作方式修正因子对辐射安全风险的影响
Effect of 131I nuclide therapy operation mode correction on radiation safety risk
冯江平 1张金帆 1陈峰 2林择华 1郭键锋 1刘永3
作者信息
- 1. 广东省深圳生态环境监测中心站,广东 深圳 518049
- 2. 深圳市生态环境局,广东 深圳 518113
- 3. 深圳大学 深圳大学中国核能与安全高等研究院,广东 深圳 518060
- 折叠
摘要
为更好地保障碘-131(131I)核素治疗工作人员的职业健康与安全,提高131I核素治疗的使用率,选择深圳市10 家医院的131I核素治疗工作场所为研究对象开展研究.采用碘盒滤膜采样法,通过低本底高纯锗γ能谱仪和无源效率刻度软件,测量核医学工作场所关键区域中131I的活度浓度.估算职业人员待积有效剂量,评估职业人员辐射安全风险,进而探讨131I核素治疗操作方式修正因子变更对职业人员辐射安全风险的影响.结果表明:采用厂家配送和自动分装方式的核医学工作场所中,131I(液态)核素治疗操作方式修正因子设定为 10 时,带来的辐射安全风险仍远低于标准限值;建议将131I(液态)核素治疗操作方式修正因子按分装方式进行区分,手动分装设定为 1,厂家配送和自动分装方式设定为10.
Abstract
To protect the occupational health and safety of 131I nuclear therapy workers and increase the utilization rate of 131I nuclear therapy,131I nuclear therapy workplaces in 10 hospitals in Shenzhen were selected in this study.The iodine box filter membrane sampling method,combined with a low background high-purity germanium γ energy spectrometer and passive efficiency calibration software,was used to measure the 131I activity concentration in critical areas of nuclear medicine workplaces.The accumulated effective dose of occupational personnel was estimated,and then the radiation safety risk of occupational personnel was evaluated.Furthermore,the effect of the correction factor change of 131I nuclide treatment operation on the radiation safety risk of occupational personnel was analyzed.The results showed that when the correction factor of 131I(liquid)nuclide treatment operation mode was set to 10,the radiation safety risk was far below the standard limit for manufacturer delivery and automatic packaging in nuclear medicine workplaces.It was recommended that the correction factor of the operation model of 131I(liquid)radionuclide therapy be distinguished by the packaging system,with manual packaging set to 1 and manufacturer delivery and automatic packaging set to 10.
关键词
131I核素治疗/操作方式/修正因子/辐射安全风险/核医学工作场所/内照射Key words
131I nuclear therapy/operating mode/correction factor/radiation safety risk/nuclear medicine workplace/internal radiation引用本文复制引用
基金项目
生态环境部核与辐射安全监管项目(环办核设函[2021]239号)
深圳市科技创新委员会基础研究面上项目(JCYJ2021032414081203)
出版年
2024
NETL
NSTL
万方数据