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首页> 外文会议>8th International Conference on Isotopes 2014 >INTERNATIONAL SEALED SOURCE DATABASE: A RADIOLOGICAL FORENSICS SIGNATURE LIBRARY
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INTERNATIONAL SEALED SOURCE DATABASE: A RADIOLOGICAL FORENSICS SIGNATURE LIBRARY

机译：国际密封源数据库：放射学法医签名库

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摘要

The concept of nuclear forensic signatures for interdicted nuclear materials is generally understood to include isotopic ratios, trace element impurity ratios, material age and morphological aspects of the material. In contrast, radiological forensic signatures for radiological sealed sources focus more on the physical design and chemical composition of the source capsule and containers, physical markings indicative of an owner or manufacturer, and isotopically determined material age. Argonne and Idaho National Laboratories have been working since 2003 on understanding signatures that could be used to identify specific source manufacturers. These signatures include source materials of construction, dimensions, weld details, elemental composition, and isotopic abundances of the radioactive material. These signatures have been collected in a library, known as the International Sealed Source Database, which contains more up-to-date information on radioactive source signatures than any other database/library in the world. Collection of material for the database has included open source information from vendor catalogs and web pages, discussions with source manufacturers and touring of production facilities (both protected through non-disclosure agreements), technical publications, and government registries such as the United States Nuclear Regulatory Commission's Sealed Source and Device Registry. Based on the information collected, profiles of source manufacturers and distributors have been developed. Details of the International Sealed Source Database will be described. Additionally, Argonne and Idaho National Laboratories have been working on verification of signature information obtained through laboratory analysis and age dating techniques. In the event of a terrorist obtaining and possibly detonating a device with radiological material, analysis of the material and source capsule could provide law enforcement with valuable clues to the origin of the material; this information could then provide further leads on where the source or material was obtained.
机译：通常，对被中断的核材料的核法证签名的概念应理解为包括同位素比，痕量元素杂质比，材料年龄和材料的形态方面。相反，放射线密封源的放射线法医签名更多地关注放射源胶囊和容器的物理设计和化学成分，指示所有者或制造商的物理标记以及同位素确定的材料年龄。自2003年以来，阿贡国家实验室和爱达荷州国家实验室一直在努力研究可用于识别特定来源制造商的签名。这些签名包括放射性材料的结构，尺寸，焊接细节，元素组成和同位素丰度的原始材料。这些签名已收集在一个称为“国际密封源数据库”的图书馆中，该图书馆包含的放射源签名信息比世界上任何其他数据库/图书馆都要多。数据库材料的收集包括来自供应商目录和网页的开放源信息，与源制造商的讨论以及生产设施的参观（均受保密协议保护），技术出版物以及政府注册机构，例如美国核监管局委员会的密封源和设备注册表。根据收集的信息，已开发了源制造商和分销商的档案。将描述国际密封源数据库的细节。此外，阿贡（Argonne）和爱达荷州国家实验室（Idaho National Laboratories）一直在验证通过实验室分析和年龄测定技术获得的签名信息。如果恐怖分子获取并可能用放射材料引爆装置，则对材料和源舱进行分析可以为执法人员提供有关材料来源的宝贵线索；然后，这些信息可以提供有关在何处获得来源或材料的更多线索。

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