| 伽玛相机在放射源搜寻监测中的应用 |
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| 作者姓名： | 黄仁杰 肖曙光 王娟 梁梅燕 曾广建 楼淑芬 吴晓飞 姚建新 俞卫良 |
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| 作者单位： | 生态环境部辐射环境监测技术中心 |
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| 基金项目： | 浙江省辐射环境监测站自行立项科研项课题(项目编号:2020ZF026)。 |
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| 摘 要： | 放射源在工业、农业、医疗等各领域已广泛应用,随之放射源丢失事件时有发生,伽玛相机能够实现放射源远距离成像、定位和活度估算,减少人员受照剂量。本文介绍了某型伽玛相机基本性能,在241Am、60Co和137Cs多枚实源共存环境条件下对其核素识别、热点定位进行测试,验证了其有效性,同时针对137Cs源进行了不同成像距离处的活度估算,根据实验结果提出了相关建议,为伽玛相机在搜源应急监测中更好的应用提供技术参考。
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| 关 键 词： | 伽玛相机 放射源 识别定位 活度估算 |
Application of Gamma Camera Inradioactive Source Searching and Monitoring |
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| Institution: | (Radiation Monitoring Technical Center of Minisry of Ecology and Environment,State key Labortory of Evironmental Protection Radiation Environmental Monitoring,Hangzhou 310012,China) |
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| Abstract: | Radioactive sources are widely used in industry,agriculture,medical treatment and other fields,and the loss of radioactive sources occurs from time to time.Gamma camera has the capability of imaging and locating a distant radioactive source in a very short period of time.This article introduces the performance of a gamma camera,the verification results of nuclide identification and hot spot location of a gamma camera in the co-existence environment of241Am,60Co and137Cs,and the estimation results of activity at different imaging distances of137Cs sources.The results provide technical reference for the better application of gamma camera in the emergency monitoring of radioactive source searching. |
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| Keywords: | Gamma Camera radioactive source identification and localization activity estimation |
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