中国医学装备Issue(1)：20-24,5.DOI:10.3969/J.ISSN.1672-8270.2015.01.006
外照射小剂量电离辐射所致器官剂量的估算应用研究
Applied research on organ doses induced by small doses ionizing radiation estimation
摘要
Abstract
Objective: To explore a feasible γ energy spectrum method for estimating organ doses which induced by external irradiation, and the application prospect of this method in the organ dose estimation. Methods:Analysis theγ energy spectrum which measured in high background areas of Yangjiang by Efficiency calibration without Radioactive Source method, based on the existing residents of organ dose conversion factors for estimating and analysis, and the corresponding position of the measured air kerma the effective dose estimated by comparison of the whole body. Results: Through the passive efficiency calibration method to analyze 30 organ absorbed dose and effective dose (adult males) of residents who living in the high background areas of Yangjiang and control area, including red bone marrow, colon (wall), thyroid, eye lens, etc. Residents in high background areas of the body effective dose estimates range from 1.97 mSv/a to 2.93 mSv/a, which consistent with the results and the measurement of air kerma estimate. Conclusion:The experimental design is reasonable, but also shows that the method is feasible for small doses of ionizing radiation induced organ dose estimates application.关键词
无源效率刻度/外照射/器官剂量Key words
Efficiency calibration/External irradiation/Organ dose分类
医药卫生引用本文复制引用
朱卫国,张庆,牛昊巍,张守志,孙全富..外照射小剂量电离辐射所致器官剂量的估算应用研究[J].中国医学装备,2015,(1):20-24,5.基金项目
卫生行业科研专项(201002009)“辐射危害控制与核辐射卫生应急处置关键技术研究及其应用” （201002009）
