20世纪40年代德国核电项目中的铀——一项核法医调查。
Uranium from German Nuclear Power Projects of the 1940s--A Nuclear Forensic Investigation.
作者信息
Mayer Klaus, Wallenius Maria, Lützenkirchen Klaus, Horta Joan, Nicholl Adrian, Rasmussen Gert, van Belle Pieter, Varga Zsolt, Buda Razvan, Erdmann Nicole, Kratz Jens-Volker, Trautmann Norbert, Fifield L Keith, Tims Stephen G, Fröhlich Michaela B, Steier Peter
机构信息
European Commission, Joint Research Centre (JRC), Institute for Transuranium Elements (ITU), Postfach 2340, 76125 Karlsruhe (Germany).
Institut für Kernchemie, Universität Mainz, Fritz-Strassmann Weg 2, 55128 Mainz (Germany).
出版信息
Angew Chem Int Ed Engl. 2015 Nov 2;54(45):13452-6. doi: 10.1002/anie.201504874. Epub 2015 Sep 7.
Here we present a nuclear forensic study of uranium from German nuclear projects which used different geometries of metallic uranium fuel. Through measurement of the (230)Th/(234)U ratio, we could determine that the material had been produced in the period from 1940 to 1943. To determine the geographical origin of the uranium, the rare-earth-element content and the (87)Sr/(86)Sr ratio were measured. The results provide evidence that the uranium was mined in the Czech Republic. Trace amounts of (236)U and (239)Pu were detected at the level of their natural abundance, which indicates that the uranium fuel was not exposed to any major neutron fluence.
在此，我们展示了对来自德国核项目的铀进行的核法医研究，这些项目使用了不同几何形状的金属铀燃料。通过测量钍-230/铀-234的比率，我们能够确定该材料是在1940年至1943年期间生产的。为了确定铀的地理来源，我们测量了稀土元素含量和锶-87/锶-86的比率。结果表明，这些铀是在捷克共和国开采的。检测到痕量的铀-236和钚-239，其含量处于自然丰度水平，这表明铀燃料未受到任何高强度中子注量的照射。
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