中国医学装备Issue(5)：55-57,58,4.DOI:10.3969/J.ISSN.1672-8270.2015.05.017
便携式γ射线实时成像检测系统对露天农作物的放射性应急监测
The radioactive emergency monitoring of crops in the open air by portable gamma-ray real-time imaging system
摘要
Abstract
Objective:To quickly monitor radioactive contamination of open crops. It is necessary to study the feasibility of monitoring radioactive contamination of open crops by gamma-ray real-time imaging system. Methods:To introduce the composition and working principle of portable gamma-ray real-time imaging system, and to expand its performance and functionality, and to test its imaging capabilities and dose rate measurement accuracy by using theγ-calibration gauge of national secondary standard laboratory. Results:The results of testing portable gamma-ray real-time imaging system by 137Cs and 60Co point source of γ-calibration gauge show clear image and distinguish the bound of radioactive pollution Accurately, and the dose rate measured at the minimum relative deviation of less than 3%, maximum relative deviation of 30.6%. Conclusion:Portable gamma-ray real-time imaging system can distinguish the bound of radioactive pollution accurately and measure dose rate accurately. So it can be well applied to the monitoring of open crops in nuclear accident.关键词
便携式γ实时成像/农作物/放射性/应急监测Key words
Portable gamma-ray real-time imaging system/Crop/Radioactive/Emergency monitoring分类
医药卫生引用本文复制引用
张庆,李文红,张京,周强,拓飞,徐翠华..便携式γ射线实时成像检测系统对露天农作物的放射性应急监测[J].中国医学装备,2015,(5):55-57,58,4.基金项目
国家科技支撑计划(2013BAK03B05)“核事故健康风险评估与卫生应急处置技术研究” （2013BAK03B05）
