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Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Angew+Chem+Int+Ed+Engl 2015 ; 54 (45): 13452-6 Nephropedia Template TP
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Uranium from German Nuclear Power Projects of the 1940s? A Nuclear Forensic Investigation #MMPMID26501922
Mayer K; Wallenius M; Lützenkirchen K; Horta J; Nicholl A; Rasmussen G; van Belle P; Varga Z; Buda R; Erdmann N; Kratz JV; Trautmann N; Fifield LK; Tims SG; Fröhlich MB; Steier P
Angew Chem Int Ed Engl 2015[Nov]; 54 (45): 13452-6 PMID26501922show ga
Here we present a nuclear forensic study of uranium from German nuclear projects which used different geometries of metallic uranium fuel.3b,d,?4 Through measurement of the 230Th/234U 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 87Sr/86Sr ratio were measured. The results provide evidence that the uranium was mined in the Czech Republic. Trace amounts of 236U and 239Pu were detected at the level of their natural abundance, which indicates that the uranium fuel was not exposed to any major neutron fluence.