Author: M. Wiernik 1
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  • 1 Universidade Estadual de Campinas Instituto de Química C. P. 1170 Campinas SP (Brasil)
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The relative activities of the members of the principal radioactive families, with respect to the initial activities of chosen parents were calculated for a wide range of time intervals. Tables and graphs that are useful for radiochemistry, source standardization and chronology are presented.