Abstract
Neutron irradiated neodymium has been examined for the possible presence of long-lived activities in the rare earth region of undetermined elemental and isotopic assignment. No such long period radioelements were detectable. Scintillation counting methods and ion exchange olumns were employed to show that a composite contribution from three isotopes of europium may have been misinterpreted as evidence for the presence of a 1.7-yr. activity of neodymium. These elements are formed by neutron capture in europium and samarium present as impurities in neodymium.
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