"Trinitite": Cobalt-60, Cesium-137, and Europium-152

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Science  14 May 1965:
Vol. 148, Issue 3672, pp. 954-955
DOI: 10.1126/science.148.3672.954


Cobalt-60, cesium-137, and europium-152 have been identified in "trinitite," an artifical mineral produced in the first nuclear explosion at Alamagordo, New Mexico, in 1945. Cesium-137 is an expected fission product, but the origin of the other two radionuclides is not certain.