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有读书笔记Postdetonation nuclear debris for attribution

聚焦生物 添加于 2010-11-29 06:25 | 1727 次阅读 | 0 个评论
  •  作 者

    Fahey AJ, Zeissler CJ, Newbury DE, Davis J, Lindstrom RM
  •  摘 要

    On the morning of July 16, 1945, the first atomic bomb was exploded in New Mexico on the White Sands Proving Ground. The device was a plutonium implosion device similar to the device that destroyed Nagasaki, Japan, on August 9 of that same year. Recently, with the enactment of US public law 111-140, the "Nuclear Forensics and Attribution Act," scientists in the government and academia have been able, in earnest, to consider what type of forensic-style information may be obtained after a nuclear detonation. To conduct a robust attribution process for an exploded device placed by a nonstate actor, forensic analysis must yield information about not only the nuclear material in the device but about other materials that went into its construction. We have performed an investigation of glassed ground debris from the first nuclear test showing correlations among multiple analytical techniques. Surprisingly, there is strong evidence, obtainable only through microanalysis, that secondary materials used in the device can be identified and positively associated with the nuclear material.
  •  详细资料

    • 文献种类:期刊
    • 期刊名称: Proceedings of the National Academy of Sciences of the United States of America
    • 期刊缩写: Proc Natl Acad Sci U S A
    • 期卷页: 2010  107 47 20207-20212
    • 地址: National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, MD 20899-6371
    • ISBN: 0027-8424
    • 备注:PMID:21059943
  • 相关链接 DOI URL 

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    核爆炸碎片可能揭示炸弹的来源

    一项研究发现,核爆炸碎片可能含有显微证据,从而有助于调查人员确定炸弹的来源。Albert J. Fahey及其同事对Trinitite——因为美国陆军1945年在新墨西哥州“Trinity”实验场进行的核爆炸而形成的玻璃化地面碎片——进行了 一次鉴识科学分析。这组作者利用先进的微量分析技术(诸如扫描电子显微镜、X射线荧光以及次级离子质谱仪)测量了痕量元素和同位素的浓度,从而获得了 Trinitite的成分和分子结构的详细概况。在考虑了裂变材料和当地自然岩石与矿物质后,这组作者发现了来自Trinity爆炸装置的一种已知成分的 一种同位素特征,爆炸让这种成分进入到了Trinitite样本中。这组作者说,该研究证明了调查人员可以对一次核爆炸的碎片进行微分析,从而了解用于建 造这个武器的具体材料。这组作者提出,然后这些细节可能有助于追踪这种武器的来源。

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