关于γ相机在放射源监测中的应用

On Performance of Gamma Camera in Radiation Monitoring

放射源在我国的使用已涉及工业、农业、环保、能源、科技、医疗、国防等诸多领域,同时放射源的丢失事件时有发生,造成财产损失、人员伤亡的同时还可能引起社会恐慌,负面影响很大。加强对放射源的有效监管,提高放射源的搜寻水平,对保障公共安全,维护社会和谐稳定,具有极为重要的意义。γ相机能远距离对放射性物质进行快速成像,定位准确,可有效减少工作人员所受照射剂量,为放射源监测和丢失放射源搜寻提供了新手段。本文介绍了基于编码孔径技术的新型γ相机的基本原理,并将γ相机应用于某放射源贮存库找源的试验,验证了γ相机在放射源监测中的有效性。

China is a country of a big amount of radioactive sources. Effective supervision of radioactive sources is significant in protection of public security and maintaining social harmony and stability. Gamma camera has the capability of imaging a distant radioactive source in a very short period of time and locating the radioactive source, thus reducing the dose of the staff. In this article, an experiment of searching for lost radioactive source with gamma camera is performed, in a radioactive source store, to verify the effectiveness of gamma camera in radiation monitoring.